cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Cellulose-carbon nanotube composite aerogels as novel thermoelectric materials
Creators: name: Gnanaseelan, Minoj
name: Chen, Yian
name: Luo, Jinji
name: Krause, Beate
name: Pionteck, Jürgen
name: Pötschke, Petra
name: Qu, Haisong
Publisher: name: Amsterdam [u.a.] : Elsevier
Year: 2018
Subjects: subject: Aerogels
subject: Carbon films
subject: Cellulose
subject: Cellulose films
subject: Electric conductivity
subject: Nanocomposite films
subject: Nanocomposites
subject: Seebeck coefficient
subject: Single-walled carbon nanotubes (SWCN)
subject: Thermoelectric equipment
subject: Thermoelectricity
subject: Yarn
subject: 660
subject: 670

description: Thermoelectric materials based on cellulose/carbon nanotube (CNT) nanocomposites have been developed by a facile approach and the effects of amount (2–10 wt%) and types of CNTs (single-walled carbon nanotubes (SWCNTs) and multi-walled carbon nanotubes (MWCNTs)) on the morphology (films and aerogels) and the thermoelectric properties of the nanocomposites have been investigated. Composite films based on SWCNTs showed significantly higher electrical conductivity (5 S/cm at 10 wt%) and Seebeck coefficient (47.2 μV/K at 10 wt%) compared to those based on MWCNTs (0.9 S/cm and 11 μV/K, respectively). Lyophilization, leading to development of aerogels with sub-micron sized pores, decreased the electrical conductivity for both types by one order of magnitude, but did not affect the Seebeck coefficient of MWCNT based nanocomposites. For SWCNT containing aerogels, higher Seebeck coefficients than for films were measured at 3 and 4 wt% but significantly lower values at higher loadings. CNT addition increased the thermal conductivity from 0.06 to 0.12 W/(m∙K) in the films, whereas the lyophilization significantly reduced it towards values between 0.01 and 0.09 W/(m∙K) for the aerogels. The maximum Seebeck coefficient, power factor, and ZT observed in this study are 49 μV/K for aerogels with 3 wt% SWCNTs, 1.1 μW/(m∙K2) for composite films with 10 wt% SWCNTs, and 7.4 × 10−4 for films with 8 wt% SWCNTs, respectively.
On the Compact Modelling of Si Nanowire and Si Nanosheet MOSFETs
Creators: name: Cerdeira, Antonio
name: Estrada, Magali
name: Pavanello, Marcelo A.
Publisher: name: Zenodo
Year: 2022
Subjects: Si Nanowire
Si Nanosheet
MOSFETs
Compact Modeling
SPICE

description: Abstract: Nanowire and Nanosheet MOSFET devices also require precise analytical models that can be used in circuit simulators. In this presentation, we demonstrate that the Symmetric Doped Double-Gate Model (SDDGM) can be used for modelling Nanowires and Nanosheets, due to the specific characteristics of these structures and of the model SDDGM. In this paper, 3D TCAD simulations are used to confirm that the total channel width for these structures is equal to the perimeter of the transistor sheet, allowing to extend of the application of the Symmetric Doped Double-Gate Model (SDDGM) model to Nanowires and Nanosheets MOSFETs, with no need to include new parameters. The Model SDDGM is validated for this application using several measured and simulated structures of Nanowires and Nanosheets transistors, with different aspect ratios of fin width and fin height, showing very good agreement between measured or simulated characteristics and modelled. SDDGM is encoded in Verilog-A language and implemented in the SmartSPICE circuit simulator.
The effect of branched carbon nanotubes as reinforcing nano-filler in polymer nanocomposites
Creators: name: Thompson, S.M.
name: Talò, M.
name: Krause, Beate
name: Janke, A.
name: Lanzerotti, M.
name: Capps, J.
name: Lanzara, G.
name: Lacarbonara, W.
Publisher: name: London : Elsevier
Year: 2022
Subjects: subject: Branched carbon nanotubes
subject: DMA testing
subject: Nanocomposite damping capacity
subject: Thermoplastic polymer matrix
subject: 670

description: This work discusses the mechanical and dissipative properties of nanocomposite materials made of a high-performance thermoplastic polymer (polybutylene terephthalate, PBT) integrated with branched carbon nanotubes (bCNTs) as nanofiller. The storage and loss moduli as well as the loss factor/damping ratio of the nanocomposites are experimentally characterized for increasing bCNT weight fractions (wt% bCNT) upon variations of the input cyclic strain amplitude and of the input frequency, respectively. The trends obtained for the nanocomposites mechanical properties indicate improvements both in storage and loss modulus by increasing the bCNT weight fraction from 0.5% to 2%. The striking differences between the damping capacities exhibited by CNT/polymer and bCNT/polymer nanocomposites are discussed to shed light onto the different underlined mechanics of the nanocomposites. Due to the stick–slip relative sliding motion of the polymer chains with respect to the straight CNTs, CNT/PBT nanocomposites are known to exhibit a peak in the damping vs. strain amplitude curves, past which, the damping capacity shows a monotonically increasing trend due to the conjectured sliding of the polymer crystals. On the other hand, we show for the first time that bCNT/PBT nanocomposites do not exhibit a peak in the damping capacity but rather a plateau after an initial drop at low strains. This behavior is attributed to the much reduced mobility of the branched CNTs and the lack of formation of crystalline structures around the bCNTs.
Handshaking Protocol for Distributed Implementation of Reo
Creators: name: Kokash, Natallia
Publisher: name: arXiv
Year: 2015
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Programming Languages (cs.PL)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Reo, an exogenous channel-based coordination language, is a model for service coordination wherein services communicate through connectors formed by joining binary communication channels. In order to establish transactional communication among services as prescribed by connector semantics, distributed ports exchange handshaking messages signalling which parties are ready to provide or consume data. In this paper, we present a formal implementation model for distributed Reo with communication delays and outline ideas for its proof of correctness. To reason about Reo implementation formally, we introduce Timed Action Constraint Automata (TACA) and explain how to compare TACA with existing automata-based semantics for Reo. We use TACA to describe handshaking behavior of Reo modeling primitives and argue that in any distributed circuit remote Reo nodes and channels exposing such behavior commit to perform transitions envisaged by the network semantics.
description: In Proceedings FOCLASA 2014, arXiv:1502.03157
A promising approach to low electrical percolation threshold in PMMA nanocomposites by using MWCNT-PEO predispersions
Creators: name: Mir, Seyed Mohammad
name: Jafari, Seyed Hassan
name: Khonakdar, Hossein Ali
name: Krause, Beate
name: Pötschke, Petra
name: Taheri Qazvini, Nader
Publisher: name: Oxford : Elsevier Science
Year: 2016
Subjects: subject: Electrical percolation
subject: Miscible blends
subject: Multi-walled carbon nanotube
subject: Poly(ethylene oxide)
subject: Poly(methyl methacrylate)
subject: Rheological percolation
subject: 600
subject: 690

description: Electrical conductive poly(methyl methacrylate) (PMMA) nanocomposites with low percolation threshold are very challenging to be prepared. Here, we show that the miscibility between poly(ethylene oxide) (PEO) as matrix for predispersions of multi-walled carbon nanotubes (MWCNTs) and PMMA represents an efficient approach to achieve very low electrical percolation threshold. PMMA/PEO-MWCNTs nanocomposites were prepared by a two-step solution casting method involving pre-mixing of MWCNTs with PEO and then mixing of PEO-MWCNTs with PMMA, resulting in a PMMA/PEO ratio of 80/20 wt%. The electrical percolation threshold (EPT) value was determined to be ~ 0.07 wt% which is significantly lower than most of the reported EPT values in the literature for PMMA/CNT composites. The very low electrical percolation threshold was attributed to the effectual role of PEO in self-assembly of secondary structures of nanotubes into an electrically conductive network. This was further confirmed by transmission electron microscopy and by comparing the obtained EPT value with the prediction of the excluded volume model in which statistical percolation threshold is defined based on uniform distribution of high-aspect ratio sticks in a matrix. Moreover, based on UV–Vis measurements and linear viscoelastic rheological measurements, optical and rheological percolation thresholds were obtained at nearly 0.01 wt% and 0.5 wt%, respectively.
EFFECT OF DIET THERAPY ON GUT MICROBIOME IN RARE GENETIC DISEASES
Creators: name: BASSANINI, GIULIA
Publisher: name: Universit� degli Studi di Milano
Year: 2021

description: In the last decades, several studies have explored the human microbiota in different body niches, notably in the gastrointestinal tract. The gut microbiota has been recognized as an additional organ that co-evolves with humans and interacts with host physiology. The gut microbiota plays a key role in the host metabolism and the extraction of energy from food. Diet is the strongest factor shaping the gut microbiota: differences in macronutrient intake may select the growth of specific microbial taxa. Indeed, the diet provides different substrates such as undigested carbohydrates for fermentation, affecting the composition of the gut microbiota and, consequently, the production of microbial metabolites. Short chain fatty acids (SCFAs), mainly acetate, propionate, and butyrate, are the major end products of anaerobic fermentation by gut microbes. Modifications in the proportions of the gut microbes and, consequently, the production of SCFAs have been suggested to play a role in several pathological conditions. If the diet is modifiable to stimulate the growth of beneficial microbes, it could represent a target for prevention and treatment of a possible dysbiosis. In congenital metabolic disorders such as phenylketonuria (PKU) and glycogen storage disease (GSD), diet is considered the mainstay for the treatment of the pathology. PKU diet is based on the restriction of phenylalanine intake and the supplementation of essential amino acids and micronutrients. PKU diet is similar to a vegan alimentation since all the animal products are excluded. GSD dietary management provides the intake of slow-release carbohydrates to prevent hypoglycaemia and limits the assumption of simple sugars. In this research, we aimed to analyze the impact of dietary therapy on the composition of the gut microbiota and the production of SCFAs in two congenital metabolic disorders (PKU and GSD). PKU and GSD diseases showed an alteration of the gut microbiome. If diet represents the only treatment of the disease and is not modifiable, a personalized intervention to restore a healthy gut microbiome is to consider. Nowadays, the attention is focused on the supplementation of probiotics and prebiotics.
Additional file 3 of Primary care in the time of COVID-19: monitoring the effect of the pandemic and the lockdown measures on 34 quality of care indicators calculated for 288 primary care practices covering about 6 million people in Catalonia
Creators: name: Coma, Ermengol
name: Mora, Núria
name: Méndez, Leonardo
name: Mència Benítez
name: Hermosilla, Eduardo
name: Fàbregas, Mireia
name: Fina, Francesc
name: Mercadé, Albert
name: Souhel Flayeh
name: Guiriguet, Carolina
name: Balló, Elisabet
name: Leon, Nuria Martinez
name: Mas, Ariadna
name: Sílvia Cordomí
name: Lejardi, Yolanda
name: Medina, Manuel
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 3: Fig. A Monthly result of EQA treatment indicators during 2019 and 2020. Fig. B Monthly result of EQA follow-up indicators during 2019 and 2020. Fig. C Monthly result of EQA vaccination indicators during 2019 and 2020. Fig. D Monthly result of EQA quaternary prevention indicators during 2019 and 2020.
DEPROTEINIZED BOVINE BONE GRAFT REMODELING PATTERN IN ALVEOLAR SOCKET. HISTOLOGIC AND IMMUNOHISTOLOGICAL EXPRESSION EVALUATION.
Creators: name: MILANI, STEFANO
Publisher: name: Universit� degli Studi di Milano
Year: 2014

description: Deproteinized bovine bone (DBB) is a bone graft highly used in dentistry in bone regeneration and alveolar socket preservation techniques. Although there is a scientific consensus on the clinical benefit of this biomaterial, and several in vitro studies described its biologic effect on osteoblasts, in vivo analyses investigating its effect on bone dynamics on human are lacking. For this purpose 20 patients needing tooth extraction and implant placement were selected and randomized in test (alveolar socket preservation with DBB) and control (spontaneous healing). Bone specimens were collected during tooth extraction (T0) and, at 5 months, during implant placement (T1). The collected samples were processed for histologic and immunohistological analyses to reveal the presence of positive (BMP-2, BMP-7, ALP) and negative (Il-6, TNF-?) markers of bone remodeling. The sections were then micro-photographed, quantification was done and statistical analyses were performed to compare T0 and T1 in both groups and T1 test group versus T1 control group. The obtained results showed higher expression of BMP-2, BMP-7 and IL-6 at T1 in both groups (p<0.05), lower expression of ALP in both (p<0.05) at T1 and higher expression of TNF-? only in test group (p<0.05) while in control group it remained stable during time. When comparing T1 markers expression in control and test groups, a higher expression of BMP-2 (p<0.05) and lower expression of TNF-? (p<0.05) were found in the first one. These results are in concordance with the previous in vitro studies and show that DBB is able to maintain bone remodeling in active phases. As a matter of fact at 5 months a higher expression of the positive markers (BMP-2, BMP-7) was noticed compared to T0, but the presence of DBB resulted in lower expression of BMP-2 and higher expression of inflammatory factor (TNF-?) when comparing to spontaneous healing at the time of the implant placement. ?For these reasons the use of DBB is suggested when clinical needs lead to a precise indication of alveolar socket preservation with biomaterial, while, if not clinically necessary, spontaneous healing is indicated because it shows more biological positive effects.
LoCuSS: Weak-lensing mass calibration of galaxy clusters
Creators: name: Okabe, Nobuhiro
name: Smith, Graham P.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present weak-lensing mass measurements of 50 X-ray luminous galaxy clusters at $0.15\le z\le0.3$, based on uniform high quality observations with Suprime-Cam mounted on the 8.2-m Subaru telescope. We pay close attention to possible systematic biases, aiming to control them at the $\le4$ per cent level. The dominant source of systematic bias in weak-lensing measurements of the mass of individual galaxy clusters is contamination of background galaxy catalogues by faint cluster and foreground galaxies. We extend our conservative method for selecting background galaxies with $(V-i')$ colours redder than the red sequence of cluster members to use a colour-cut that depends on cluster-centric radius. This allows us to define background galaxy samples that suffer $\le1$ per cent contamination, and comprise $13$ galaxies per square arcminute. Thanks to the purity of our background galaxy catalogue, the largest systematic that we identify in our analysis is a shape measurement bias of $3$ per cent, that we measure using simulations that probe weak shears upto $g=0.3$. Our individual cluster mass and concentration measurements are in excellent agreement with predictions of the mass-concentration relation. Equally, our stacked shear profile is in excellent agreement with the Navarro Frenk and White profile. Our new LoCuSS mass measurements are consistent with the CCCP and CLASH surveys, and in tension with the Weighing the Giants at $\sim1-2σ$ significance. Overall, the consensus at $z\le0.3$ that is emerging from these complementary surveys represents important progress for cluster mass calibration, and augurs well for cluster cosmology.
description: 30 pages, 14 figures, 7 tables : accepted for the publication in MNRAS : mass table updated
SEARCHING FOR DARK MATTER IN THE MONO-JET AND MONO-PHOTON CHANNELS WITH THE ATLAS DETECTOR
Creators: name: RATTI, MARIA GIULIA
Publisher: name: Universit� degli Studi di Milano
Year: 2018

description: This work presents searches for dark matter particles in the mono-jet and mono-photon final states using the data collected by the ATLAS experiment during 2015 and 2016. The thesis starts with an introduction to the basic concepts of the Standard Model, followed by a discussion of the dark matter problem and the WIMP hypothesis. The focus then shifts to the description of the experimental facilities to collect the data and reconstruct the collision events. Particular focus is put on the reconstruction and performance of the missing transverse momentum. After characterizing a few theoretical models predicting dark matter particles in the mono-photon and mono-jet final states, the searches in these two signatures are thoroughly discussed, with particular focus on the background estimation techniques. While no significant deviations from the Standard Model predictions are found, the results obtained by these searches further restrict the phase-space where the dark matter particles can lie.
Carbonaceous dust grains seen in the first billion years of cosmic time
Creators: name: Witstok, Joris
name: Shivaei, Irene
name: Smit, Renske
name: Maiolino, Roberto
name: Carniani, Stefano
name: Curtis-Lake, Emma
name: Ferruit, Pierre
name: Arribas, Santiago
name: Bunker, Andrew J.
name: Cameron, Alex J.
name: Charlot, Stephane
name: Chevallard, Jacopo
name: Curti, Mirko
name: de Graaff, Anna
name: D'Eugenio, Francesco
name: Giardino, Giovanna
name: Looser, Tobias J.
name: Rawle, Tim
name: del Pino, Bruno Rodríguez
name: Willott, Chris
name: Alberts, Stacey
name: Baker, William M.
name: Boyett, Kristan
name: Egami, Eiichi
name: Eisenstein, Daniel J.
name: Endsley, Ryan
name: Hainline, Kevin N.
name: Ji, Zhiyuan
name: Johnson, Benjamin D.
name: Kumari, Nimisha
name: Lyu, Jianwei
name: Nelson, Erica
name: Perna, Michele
name: Rieke, Marcia
name: Robertson, Brant E.
name: Sandles, Lester
name: Saxena, Aayush
name: Scholtz, Jan
name: Sun, Fengwu
name: Tacchella, Sandro
name: Williams, Christina C.
name: Willmer, Christopher N. A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Large dust reservoirs (up to $\sim 10^8 \, \mathrm{M_\odot}$) have been detected in galaxies out to redshift $z \sim 8$, when the age of the universe was only about 600 Myr. Generating significant amounts of dust within such a short timescale has proven challenging for theories of dust formation and has prompted the revision of the modelling of potential sites of dust production such as the atmospheres of asymptotic giant branch (AGB) stars in low-metallicity environments, supernovae (SNe) ejecta, and the accelerated growth of grains in the interstellar medium (ISM). However, degeneracies between different evolutionary pathways remain when the total dust mass of galaxies is the only available observable. Here we report observations of the $2175 \, \mathring{\rm A}$ dust attenuation feature, well known in the Milky Way (MW) and galaxies at $z \lesssim 3$, in the near-infrared spectra of galaxies up to $z \sim 7$, corresponding to the first billion years of cosmic time. The relatively short timescale implied for the formation of carbonaceous grains giving rise to this feature suggests a rapid production process, likely in Wolf-Rayet (WR) stars or SN ejecta.
description: 28 pages, 8 figures. Accepted for publication in Nature
CATALYTIC AND PHOTOCATALYTIC PROCESSES FOR THE PRODUCTION OF ALTERNATIVE FUELS AND CHEMICALS FROM RENEWABLE SOURCES
Creators: name: COMPAGNONI, MATTEO
Publisher: name: Universit� degli Studi di Milano
Year: 2018

description: The research project during my three years of activity was focused on the de-velopment of innovative processes and catalytic materials for the production of sustainable chemicals and fuels. The work was mainly divided in three are-as: i) bioethanol valorization through the heterogeneous catalytic production of H2 and ethylene; ii) CO and CO2 conversion; iii) H2 usage through ammonia production.
(100807) Francis Thomas Lloyd
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Development of electrically conductive microstructures based on polymer/CNT nanocomposites via two-photon polymerization
Creators: name: Staudinger, U.
name: Zyla, G.
name: Krause, Beate
name: Janke, A.
name: Fischer, D.
name: Esen, C.
name: Voit, B.
name: Ostendorf, A.
Publisher: name: Amsterdam [u.a.] : Elsevier
Year: 2017
Subjects: subject: Carbon nanotube
subject: Conductive nanocomposite
subject: Microstructure
subject: Two-photon polymerization
subject: 620

description: Femtosecond laser-induced two-photon polymerization (2PP) of carbon nanofiller doped polymers was utilized to produce electrically conductive microstructures, which are expected to be applicable as microelectronic components or micro-electromechanical systems in sensors. The nanocomposites were processed by compounding an inorganic-organic hybrid material with two different types (short and long) of single walled carbon nanotubes (SWCNTs). Different SWCNT contents were dispersed in the polymer by sonication to adjust the electrical conductivity of the nanocomposites. Low surface resistivity values of ~ 4.6 × 105 Ω/sq. could be measured for coated reference films with a thickness of 30 μm having an exceptionally low SWCNT content of 0.01 wt% of the long type of SWCNTs. In contrast, a higher minimum resistivity of 1.5 × 106 Ω/sq. was exhibited for composites with a higher content, 2 wt%, of short SWCNTs. The structural quality of the microstructures processed by 2PP was mainly influenced by the dispersion quality of the SWCNTs. To characterize the electrical conductivity, conductive atomic force microscopy was applied for the first time. In microstructures with 0.05 wt% of the long type of SWCNTs, a contact current could be detected over a wide range of the measured area visualizing the electrical conductive CNT network, which has not been reported before.
Simplified Models for Dark Matter Searches at the LHC
Creators: name: Abdallah, Jalal
name: Araujo, Henrique
name: Arbey, Alexandre
name: Ashkenazi, Adi
name: Belyaev, Alexander
name: Berger, Joshua
name: Boehm, Celine
name: Boveia, Antonio
name: Brennan, Amelia
name: Brooke, Jim
name: Buchmueller, Oliver
name: Buckley, Matthew
name: Busoni, Giorgio
name: Calibbi, Lorenzo
name: Chauhan, Sushil
name: Daci, Nadir
name: Davies, Gavin
name: De Bruyn, Isabelle
name: De Jong, Paul
name: De Roeck, Albert
name: de Vries, Kees
name: Del Re, Daniele
name: De Simone, Andrea
name: Di Simone, Andrea
name: Doglioni, Caterina
name: Dolan, Matthew
name: Dreiner, Herbi K.
name: Ellis, John
name: Eno, Sarah
name: Etzion, Erez
name: Fairbairn, Malcolm
name: Feldstein, Brian
name: Flaecher, Henning
name: Feng, Eric
name: Fox, Patrick
name: Genest, Marie-Hélène
name: Gouskos, Loukas
name: Gramling, Johanna
name: Haisch, Ulrich
name: Harnik, Roni
name: Hibbs, Anthony
name: Hoh, Siewyan
name: Hopkins, Walter
name: Ippolito, Valerio
name: Jacques, Thomas
name: Kahlhoefer, Felix
name: Khoze, Valentin V.
name: Kirk, Russell
name: Korn, Andreas
name: Kotov, Khristian
name: Kunori, Shuichi
name: Landsberg, Greg
name: Liem, Sebastian
name: Lin, Tongyan
name: Lowette, Steven
name: Lucas, Robyn
name: Malgeri, Luca
name: Malik, Sarah
name: McCabe, Christopher
name: Mete, Alaettin Serhan
name: Morgante, Enrico
name: Mrenna, Stephen
name: Nakahama, Yu
name: Newbold, Dave
name: Nordstrom, Karl
name: Pani, Priscilla
name: Papucci, Michele
name: Pataraia, Sophio
name: Penning, Bjoern
name: Pinna, Deborah
name: Polesello, Giacomo
name: Racco, Davide
name: Re, Emanuele
name: Riotto, Antonio Walter
name: Rizzo, Thomas
name: Salek, David
name: Sarkar, Subir
name: Schramm, Steven
name: Skubic, Patrick
name: Slone, Oren
name: Smirnov, Juri
name: Soreq, Yotam
name: Sumner, Timothy
name: Tait, Tim M. P.
name: Thomas, Marc
name: Tomalin, Ian
name: Tunnell, Christopher
name: Vichi, Alessandro
name: Volansky, Tomer
name: Weiner, Neal
name: West, Stephen M.
name: Wielers, Monika
name: Worm, Steven
name: Yavin, Itay
name: Zaldivar, Bryan
name: Zhou, Ning
name: Zurek, Kathryn
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: This document outlines a set of simplified models for dark matter and its interactions with Standard Model particles. It is intended to summarize the main characteristics that these simplified models have when applied to dark matter searches at the LHC, and to provide a number of useful expressions for reference. The list of models includes both s-channel and t-channel scenarios. For s-channel, spin-0 and spin-1 mediation is discussed, and also realizations where the Higgs particle provides a portal between the dark and visible sectors. The guiding principles underpinning the proposed simplified models are spelled out, and some suggestions for implementation are presented.
description: v3: Fixed typo in eqns 14 & 15
Information bricolage of welfare workers in community sector organisations
Creators: name: French, Rebecca Lea
Publisher: name: Monash University
Year: 2017
Subjects: Uncategorized

description: Although community-based organisations represent a vital component of the Australian services sector, exploration of the nature of the information practices of welfare workers in these organisations has been limited so far. This research used organisational ethnography and grounded theory methods to explore the nature of information practices, and how they fit into the daily work practices of welfare workers in a small community sector organisation in Victoria, Australia. The findings of ten months of fieldwork, including interviews and observations of welfare work, have led to a deep exploration of bricolage as a way to describe both the use of resources and the processes inherent in welfare worker information practices. The thesis proposes the concept of information bricolage, or the engagement in fluid, unplanned, collaborative information practices, through the use or recombination of resources close to hand, as a way to conceptualise these practices. It explores the implications of those practices on the use of information and communication technologies (ICT) and implementation of informational requirements of key stakeholders such as government funders. It engages with the adequacy of the definition and conception of bricolage itself, as well as presenting a model of information bricolage in welfare work. The model describes the importance of practice, resources, knowledge and context to information bricolage, and discusses how these elements can assist in the understanding of how the practice of information bricolage allows workers to support clients and enhance service delivery outcomes in the organisation studied.
Types of Fish Consumed and Fish Preparation Methods in Relation to Pancreatic Cancer Incidence: The VITAL Cohort Study
Creators: name: He, Ka
name: Xun, Pengcheng
name: Gammon, Marilie D.
name: Stevens, June
name: Brasky, Theodore M.
name: White, Emily
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: The associations of types of fish and fish preparation methods with pancreatic cancer risk remain unknown. The authors conducted a prospective cohort study in western Washington State among 66,616 adults, aged 50–76 years, who participated in the VITamins And Lifestyle cohort study. Diet was assessed by a food frequency questionnaire. Pancreatic cancer cases were identified by linkage to the Surveillance, Epidemiology, and End Results cancer registry. During an average follow-up of 6.8 years, 151 participants developed pancreatic cancer (adenocarcinoma). Long-chain (n-3) polyunsaturated fatty acids (LC-PUFAs) and nonfried fish intake were inversely associated with pancreatic cancer incidence. When the highest and lowest tertiles of exposure were compared, the multivariable-adjusted hazard ratio of pancreatic cancer was 0.62 (95% confidence interval: 0.40, 0.98) (Ptrend = 0.08) for LC-PUFAs and 0.55 (95% confidence interval: 0.34, 0.88) (Ptrend = 0.045) for nonfried fish. Docosahexaenoic acid showed a greater inverse association with pancreatic cancer than eicosapentaenoic acid. No statistically significant associations were observed with fried fish and shellfish consumption. The potential health impact of fish consumption may depend on the types of fish consumed and fish preparation methods. LC-PUFAs, particularly docosahexaenoic acid, and nonfried fish, but not shellfish or fried fish, may be beneficial in the primary prevention of pancreatic cancer.
Electrically conductive and piezoresistive polymer nanocomposites using multiwalled carbon nanotubes in a flexible copolyester: Spectroscopic, morphological, mechanical and electrical properties
Creators: name: Dhakal, Kedar Nath
name: Khanal, Santosh
name: Krause, Beate
name: Lach, Ralf
name: Grellmann, Wolfgang
name: Le, Hai Hong
name: Das, Amit
name: Wießner, Sven
name: Heinrich, Gert
name: Pionteck, Jürgen
name: Adhikari, Rameshwar
Publisher: name: Amsterdam [u.a.] : Elsevier
Year: 2022
Subjects: subject: Electrical conductivity
subject: Piezoresistivity
subject: Polymer nanocomposites
subject: Strain-sensing
subject: Volume resistivity
subject: 530

description: Nanocomposites of multiwalled carbon nanotubes (MWCNTs) with poly(butylene adipate-co-terephthalate) (PBAT), a flexible aromatic–aliphatic copolyester, were prepared by melt mixing followed by compression moulding to investigate their spectroscopic, morphological, mechanical and electrical properties. A comparison of the Fourier transform infrared (FTIR) spectra of the neat polymer matrix and the composites showed no difference, implying a physical mixing of the matrix and the filler. A morphological investigation revealed the formation of a continuous and interconnected MWCNT network embedded in the polymer matrix with partial agglomeration. Increasing Martens hardness and indentation modulus and decreasing maximum indentation depth with increasing filler concentration demonstrated the reinforcement of the polymer by the MWCNTs. A volume resistivity of 4.6 × 105 Ω cm of the materials was achieved by the incorporation of only 1 wt.-% of the MWCNTs, which confirmed a quite low percolation threshold (below 1 wt.-%) of the nanocomposites. The electrical volume resistivity of the flexible nanocomposites was achieved up to 1.6 × 102 Ω cm, depending on the filler content. The elongation at the break of the nanocomposites at 374% and the maximum relative resistance changes (ΔR/R0) of 20 and 200 at 0.9 and 7.5% strains, respectively, were recorded in the nanocomposites (3 wt.-% MWCNTs) within the estimated volume resistivity range. A cyclic strain experiment shows the most stable and reproducible ΔR/R0 values in the 2%–5% strain range. The electrical conductivity and piezoresistivity of the investigated nanocomposites in correlation with the mechanical properties and observed morphology make them applicable for low-strain deformation-sensing.
Electrical, mechanical, and glass transition behavior of polycarbonate-based nanocomposites with different multi-walled carbon nanotubes
Creators: name: Castillo, Frank Yepez
name: Socher, Robert
name: Krause, Beate
name: Headrick, Robert
name: Grady, Brian P.
name: Prada-Silvy, Ricardo
name: Pötschke, Petra
Publisher: name: Oxford : Elsevier Science
Year: 2011
Subjects: subject: Multi-walled carbon nanotubes
subject: Polymer composites
subject: Polymer nanocomposites
subject: 540

description: Five commercially available multi-walled carbon nanotubes (MWNTs), with different characteristics, were melt mixed with polycarbonate (PC) in a twin-screw micro compounder to obtain nanocomposites containing 0.25-3.0 wt.% MWNT. The electrical properties of the composites were assessed using bulk electrical conductivity measurements, the mechanical properties of the composites were evaluated using tensile tests and dynamic mechanical analysis (DMA), and the thermal properties of the composites were investigated using differential scanning calorimetry (DSC). Electrical percolation thresholds (pcs) were observed between 0.28 wt.% and 0.60 wt.%, which are comparable with other well-dispersed melt mixed materials. Based on measurements of diameter and length distributions of unprocessed tubes it was found that nanotubes with high aspect ratios exhibited lower pcs, although one sample did show higher pc than expected (based on aspect ratio) which was attributed to poorer dispersion achieved during mixing. The stress-strain behavior of the composites is only slightly altered with CNT addition; however, the strain at break is decreased even at low loadings. DMA tests suggest the formation of a combined polymer-CNT continuous network evidenced by measurable storage moduli at temperatures above the glass transition temperature (T g), consistent with a mild reinforcement effect. The composites showed lower glass transition temperatures than that of pure PC. Lowering of the height of the tanδ peak from DMA and reductions in the heat capacity change at the glass transition from DSC indicate that MWNTs reduced the amount of polymer material that participates in the glass transition of the composites, consistent with immobilization of polymer at the nanotube interface. © 2011 Elsevier Ltd. All rights reserved.
The influence of matrix viscosity on MWCNT dispersion and electrical properties in different thermoplastic nanocomposites
Creators: name: Socher, Robert
name: Krause, Beate
name: Müller, Michael T.
name: Boldt, Regine
name: Pötschke, Petra
Publisher: name: Oxford : Elsevier Science
Year: 2012
Subjects: subject: Carbon nanotubes
subject: Matrix viscosity
subject: Thermoplastic composites
subject: 540

description: Composites of MWCNTs having each three different levels of matrix viscosity with five different polymers (polyamide 12, polybutylene terephthalate, polycarbonate, polyetheretherketone and low density polyethylene) were melt mixed to identify the general influence of matrix viscosity on the electrical properties and the state of MWCNT dispersion. Huge differences in the electrical percolation thresholds were found using the same polymer matrix with different viscosity grades. The lowest percolation thresholds were always found in the composites based on the low viscosity matrix. The state of primary MWCNT agglomerate dispersion increased with increasing matrix viscosity due to the higher input of mixing energy. TEM investigations showed nanoagglomerated structures in the low viscosity samples which are obviously needed to achieve low resistivity values. The effect of nanotube shortening was quantified using two different viscosity grades of polycarbonate. Due to the higher mixing energy input the nanotube shortening was more pronounced in the high viscosity matrix which partially explains the higher percolation threshold. © 2011 Elsevier Ltd. All rights reserved.
A successful approach to disperse MWCNTs in polyethylene by melt mixing using polyethylene glycol as additive
Creators: name: Müller, Michael Thomas
name: Krause, Beate
name: Pötschke, Petra
Publisher: name: Oxford : Elsevier Science
Year: 2012
Subjects: subject: Additives
subject: Carbon nanotube-polymer composites
subject: Dispersion
subject: 540

description: An additive-assisted one-step melt mixing approach was developed to produce nanocomposites based on linear low density polyethylene (LLDPE) with multiwalled carbon nanotube (MWCNT). The polymer granules, nanotube powder (2 wt% Nanocyl™ NC7000) and 1-10 wt% of the non-ionic additives poly(ethylene glycol) (PEG) or poly(ethylene oxide) (PEO) with molar masses between 100 g/mol and 100,000 g/mol were simply fed together in the hopper of a small-scale DSM Xplore 15 twin-screw microcompounder. The produced MWCNT/LLDPE composites showed excellent MWCNT dispersion and highly improved electrical properties as compared to samples without the additive, whereas the effects depend on the amount and molar mass of the additive. When 7 wt% PEG (2000 g/mol) were used, a reduction of the electrical percolation threshold from 2.5 wt% to 1.5 wt% was achieved. © 2012 Elsevier Ltd. All rights reserved.
Accounting for Outcome Misclassification in Estimates of the Effect of Occupational Asbestos Exposure on Lung Cancer Death
Creators: name: Olshan, Andrew F.
name: Cole, Stephen R.
name: Richardson, David B.
name: Edwards, Jessie K.
name: Chu, Haitao
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: In studies of the health effects of asbestos, lung cancer death is subject to misclassification. We used modified maximum likelihood to explore the effects of outcome misclassification on the rate ratio of lung cancer death per 100 fiber-years per milliliter of cumulative asbestos exposure in a cohort study of textile workers in Charleston, South Carolina, followed from 1940 to 2001. The standard covariate-adjusted estimate of the rate ratio was 1.94 (95% confidence interval: 1.55, 2.44), and modified maximum likelihood produced similar results when we assumed that the specificity of outcome classification was 0.98. With sensitivity assumed to be 0.80 and specificity assumed to be 0.95, estimated rate ratios were further from the null and less precise (rate ratio = 2.17; 95% confidence interval: 1.59, 2.98). In the present context, standard estimates for the effect of asbestos on lung cancer death were similar to estimates accounting for the limited misclassification. However, sensitivity analysis using modified maximum likelihood was needed to verify the robustness of standard estimates, and this approach will provide unbiased estimates in settings with more misclassification.
Melt mixed PCL/MWCNT composites prepared at different rotation speeds: Characterization of rheological, thermal, and electrical properties, molecular weight, MWCNT macrodispersion, and MWCNT length distribution
Creators: name: Pötschke, Petra
name: Villmow, Tobias
name: Krause, Beate
Publisher: name: Oxford : Elsevier Science
Year: 2013
Subjects: subject: Carbon nanotubes
subject: Melt-mixing
subject: Polymer-matrix composites
subject: 540

description: Composites of poly(caprolactone) (PCL) and 0.5 wt.% multiwalled carbon nanotubes (MWCNT) were prepared by melt-mixing in a conical twin-screw micro-compounder by varying the rotation speed between 25 and 400 rpm at constant mixing time and temperature. The state of dispersion analyzed by light microscopy was improved with increasing rotation speed but levels off starting at about 100 rpm. PCL molecular weight as well as crystallization and melting behavior did show only insignificant difference when varying the rotation speed. Concerning melt rheological properties, storage modulus G′ and complex viscosity η* at 0.1 rad/s increased up to a rotation speed of about 75 rpm illustrating improved dispersion. When further increasing the speed G′ and η* decreased which was attributed to more pronounced nanotube shortening as quantified by TEM measurements. Both effects - improved dispersion and nanotube shortening - are also reflected in the electrical resistivity values of compression molded samples which show a minimum of resistivity at the rotation speed of 75 rpm corresponding to a specific mechanical energy input of 0.47 kWh/kg. © 2013 Elsevier Ltd. All rights reserved.
Additional file 1 of Development of genetic tools for the thermophilic filamentous fungus Thermoascus aurantiacus
Creators: name: Gabriel, Raphael
name: Prinz, Julia
name: Jecmenica, Marina
name: Romero-Vazquez, Carlos
name: Pallas Chou
name: Harth, Simon
name: Floerl, Lena
name: Curran, Laure
name: Oostlander, Anne
name: Matz, Linda
name: Fritsche, Susanne
name: Gorman, Jennifer
name: Schuerg, Timo
name: Fleißner, André
name: Singer, Steven W.
Publisher: name: figshare
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics

description: Additional file 1. Additional tables and figures.
African American Race and HIV Virological Suppression: Beyond Disparities in Clinic Attendance
Creators: name: Howe, Chanelle J.
name: Napravnik, Sonia
name: Kaufman, Jay S.
name: Mugavero, Michael J.
name: Elston, Beth
name: Eron Jr., Joseph J.
name: Cole, Stephen R.
name: Adimora, Adaora A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Racial disparities in clinic attendance may contribute to racial disparities in plasma human immunodeficiency virus type 1 (HIV-1) RNA levels among HIV-positive patients in care. Data from 946 African American and 535 Caucasian patients receiving HIV care at the University of North Carolina Center for AIDS Research HIV clinic between January 1, 1999, and August 1, 2012, were used to estimate the association between African American race and HIV virological suppression (i.e., undetectable HIV-1 RNA) when racial disparities in clinic attendance were lessened. Clinic attendance was measured as the proportion of scheduled clinic appointments attended (i.e., visit adherence) or the proportion of six 4-month intervals with at least 1 attended scheduled clinic appointment (i.e., visit constancy). In analyses accounting for patient characteristics, the risk ratio for achieving suppression when comparing African Americans with Caucasians was 0.91 (95% confidence interval: 0.85, 0.98). Lessening disparities in adherence or constancy lowered disparities in virological suppression by up to 44.4% and 11.1%, respectively. Interventions that lessen disparities in adherence may be more effective in eliminating disparities in suppression than interventions that lessen disparities in constancy. Given that gaps in care were limited to be no more than 2 years for both attendance measures, the impact of lessening disparities in adherence may be overstated.
Good deeds in Christianity and Islam : comparing the perspectives of Augustine and al-Ghazālī
Creators: name: Abd Rahman, Mohd Rosmizi
Publisher: name: Monash University
Year: 2017
Subjects: Uncategorized

description: This research examines and compares the attitudes towards good deeds taken by two great thinkers of Latin Christianity and Sunni Islam, namely, Saint Augustine of Hippo (354-430 CE) and Imām Abū Ḥāmid Muḥammad ibn Muḥammad ibn Muḥammad al-Ghazālī al-al-Ṭūsī (1058-1111 CE / 450-505 AH). Both thinkers address the issue in their own unique and profound ways, with a strong focus on the inner dimension of good deeds. However, their spiritual insights into the issue have not really been studied comparatively. This research focuses on their thoughts about the nature, significance, and inner dimension of good deeds, employing descriptive, analytic, and comparative methods. The scope of this research is divided into two main parts. The first part offers a general analysis of the concepts of good deeds in relation to religious faith as addressed and understood in both Christianity and Islam, and it attempts to establish their significance in both religions. The second part scrutinises some relevant issues in depth that are related to the attitudes of Augustine and al-Ghazālī towards good deeds. It covers their responses to particular interpretations and controversies, their understandings of the nature and significance of good deeds, and most importantly, their insights into the inner dimension of such actions. Augustine and al-Ghazali were each formulating their reflections on the subject within the framework of their religious traditions at a time of great controversy and debate on the subject within each of their traditions. While neither offers the last word on the subject within their religious traditions, they both focus on an inner dimension of good deeds in a way that deserves attention from Muslims and Christians alike. Indeed, both offer a sophisticated way of understanding and performing good deeds. They address their inner meaning and either directly or indirectly reveal some inner preconditions that need to be observed in performing good deeds. They believe that an appropriate balance between their outward and inward observance is an essential requirement in transforming good deeds from dry understanding and mere outward practices—as exhibited in pure ritualism and legalism—to spiritually fruitful ones. Thus, their insights are not only useful in improving the quality of good deeds, but they also pave a way for a personal spiritual transformation in returning to God, and establishing an intimate relationship with Him.
Additional file 2 of Primary care in the time of COVID-19: monitoring the effect of the pandemic and the lockdown measures on 34 quality of care indicators calculated for 288 primary care practices covering about 6 million people in Catalonia
Creators: name: Coma, Ermengol
name: Mora, Núria
name: Méndez, Leonardo
name: Mència Benítez
name: Hermosilla, Eduardo
name: Fàbregas, Mireia
name: Fina, Francesc
name: Mercadé, Albert
name: Souhel Flayeh
name: Guiriguet, Carolina
name: Balló, Elisabet
name: Leon, Nuria Martinez
name: Mas, Ariadna
name: Sílvia Cordomí
name: Lejardi, Yolanda
name: Medina, Manuel
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 2. Percentage of change, difference and significance of the 40 health care quality indicators in the months of February, March and April 2019 and 2020.