cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Minimally Symmetric Higgs Boson
Creators: name: Low, Ian
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Models addressing the naturalness of a light Higgs boson typically employ symmetries, either bosonic or fermionic, to stabilize the Higgs mass. We consider a setup with the minimal amount of symmetries: four shift symmetries acting on the four components of the Higgs doublet, subject to the constraints of linearly realized SU(2)xU(1) electroweak symmetry. Up to terms that explicitly violate the shift symmetries, the effective lagrangian can be derived, irrespective of the spontaneously broken group G in the ultraviolet, and is universal in all models where the Higgs arises as a pseudo-Nambu-Goldstone boson (PNGB). Very high energy scatterings of vector bosons could provide smoking gun signals of a minimally symmetric Higgs boson.
description: 17 pages, no figure; v2: minor changes; matched to the published version
Additional file 1: of Study on efficacy and safety of Tong-luo Qu-tong plaster treatment for knee osteoarthritis: study protocol for a randomized, double-blind, parallel positive controlled, multi-center clinical trial
Creators: name: Xu, Bao-Ping
name: Yao, Min
name: Zi-Rui Tian
name: Zhou, Long-Yun
name: Yang, Long
name: Li, Zhen-Jun
name: Zhu, Sen
name: Wang, Xiao-Tao
name: Lan, Jia-Hui
name: Wang, Yong-Jun
name: Cui, Xue-Jun
Publisher: name: Figshare
Year: 2019
Subjects: subject: Medicine
subject: Biotechnology
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: SPIRIT 2013 checklist: Recommended items to address in a clinical trial protocol and related documents*. (DOC 136 kb)
Moving in a crowd: human perception as a multiscale process
Creators: name: Colombi, Annachiara
name: Scianna, Marco
name: Tosin, Andrea
Publisher: name: arXiv
Year: 2015
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 37N99, 82C22, 90B20

description: The strategic behaviour of pedestrians is largely determined by how they perceive and react to neighbouring people. This issue is addressed in this paper by a model which combines, in a time and space-dependent way, discrete and continuous effects of pedestrian interactions. Numerical simulations and qualitative analysis suggest that human perception, and its impact on crowd dynamics, can be effectively modelled as a multiscale process based on a dual microscopic/macroscopic representation of groups of agents.
description: 7 pages, 2 figures
Aquacultured Rainbow Trout (Oncorhynchus mykiss) Possess a Large Core Intestinal Microbiota That Is Resistant to Variation in Diet and Rearing Density
Creators: name: Wong, S.
name: Barrows, F.
name: Snekvik, K.
name: Wiens, G. D.
name: Davidson, J.
name: Kenney, P. B.
name: Welch, T.
name: Rawls, J. F.
name: Good, C.
name: Summerfelt, S.
name: Waldrop, T.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: As global aquaculture fish production continues to expand, an improved understanding of how environmental factors interact in fish health and production is needed. Significant advances have been made toward economical alternatives to costly fishmeal-based diets, such as grain-based formulations, and toward defining the effect of rearing density on fish health and production. Little research, however, has examined the effects of fishmeal- and grain-based diets in combination with alterations in rearing density. Moreover, it is unknown whether interactions between rearing density and diet impact the composition of the fish intestinal microbiota, which might in turn impact fish health and production. We fed aquacultured adult rainbow trout (Oncorhynchus mykiss) fishmeal- or grain-based diets, reared them under high- or low-density conditions for 10 months in a single aquaculture facility, and evaluated individual fish growth, production, fin indices, and intestinal microbiota composition using 16S rRNA gene sequencing. We found that the intestinal microbiotas were dominated by a shared core microbiota consisting of 52 bacterial lineages observed across all individuals, diets, and rearing densities. Variations in diet and rearing density resulted in only minor changes in intestinal microbiota composition despite significant effects of these variables on fish growth, performance, fillet quality, and welfare. Significant interactions between diet and rearing density were observed only in evaluations of fin indices and the relative abundance of the bacterial genus Staphylococcus. These results demonstrate that aquacultured rainbow trout can achieve remarkable consistency in intestinal microbiota composition and suggest the possibility of developing novel aquaculture strategies without overtly altering intestinal microbiota composition.
Isolation of Arbortristoside-A from Nyctanthes arbor-tristis seeds and its structural validation by X-ray crystallographic analysis
Creators: name: Gupta, Deepak
name: Vikram, Vikrant N.
name: Lama, Prem
name: Patil, Umesh K.
name: Jain, Sanjay K.
name: Chourasia, Manish K.
name: Narender, Tadigoppula
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Biochemistry
subject: Physical Sciences not elsewhere classified
subject: Medicine
subject: Pharmacology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy

description: Aiming at confirming the chemical structure, herein, we report the crystal structure of Arbortristoside-A, isolated from the seeds of Nyctanthes arbor-tristis Linn. and investigated by single crystal X-ray crystallographic analysis. The unambiguously established structure of Arbortristoside-A not only addresses previously reported structural flaws but also encourages its chemical, computational, and physiological studies as a lead drug candidate of pharmaceutical significance.
Revisiting infraspecific classification of Xerodraba patagonica (Brassicaceae) under different sources of evidence
Creators: name: Salariato, Diego
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 310410
subject: Phylogeny and comparative analysis

description: Supplementary MaterialITS.nex ITS alignment.trnLF.nex trnL-F alignment.trnH.nex trnH-psbA alignment.rps16.nex rps16 alignment.Appendix S1. GenBank accession numbers for the ITS, trnL-F, trnH-psbA, and rps16 intron sequences used in the phylogenetic analyses. Herbarium acronyms are in parentheses and Genbank numbers are in square brackets. For full collection data and other specimens examined, see the text under the section “Additional specimens examined” at the end of species. Sequences that could not be obtained are indicated with hyphens.Figure S1. Geographic distribution of the different subspecies included in X. patagonica. Red and green circles correspond to specimens of X. patagonica subsp. patagonica and X. patagonica subsp. pycnophylloides, respectively. Delimited area (blue polygon) corresponds study area used for climatic niche analyses and species distribution modeling.Figure S2. Violin plots corresponding to the variation of characters (leaf length, sepal length, petal length, anther length) included in the morphological analyses. P-values correspond to the Wilcoxon rank sum test between both subspecies.Table S1. Quantitative characters (mean) and geographic coordinates (WGS84 decimal degrees) used in morphological and niche analyses.Table S2. Factor loadings on the first five components for the PCA-env obtained with 19 bioclimatic variables.Table S3. Factor loadings on the first three components for the morphological PCA with four quantitative characters.
Development of Quantitative PCR Assays Targeting the 16S rRNA Genes of Enterococcus spp. and Their Application to the Identification of Enterococcus Species in Environmental Samples
Creators: name: Blackwood, Denene
name: Elk, Michael
name: Henson, Michael
name: Glassmeyer, Susan
name: Toledo-Hernandez, Carlos
name: Santo Domingo, Jorge W.
name: Griffith, John
name: Ryu, Hodon
name: Gourmelon, Michèle
name: Noble, Rachel
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: ABSTRACT The detection of environmental enterococci has been determined primarily by using culture-based techniques that might exclude some enterococcal species as well as those that are nonculturable. To address this, the relative abundances of enterococci were examined by challenging fecal and water samples against a currently available genus-specific assay (Entero1). To determine the diversity of enterococcal species, 16S rRNA gene-based group-specific quantitative PCR (qPCR) assays were developed and evaluated against eight of the most common environmental enterococcal species. Partial 16S rRNA gene sequences of 439 presumptive environmental enterococcal strains were analyzed to study further the diversity of enterococci and to confirm the specificities of group-specific assays. The group-specific qPCR assays showed relatively high amplification rates with targeted species (>98%), although some assays cross-amplified with nontargeted species (1.3 to 6.5%). The results with the group-specific assays also showed that different enterococcal species co-occurred in most fecal samples. The most abundant enterococci in water and fecal samples were Enterococcus faecalis and Enterococcus faecium , although we identified more water isolates as Enterococcus casseliflavus than as any of the other species. The prevalence of the Entero1 marker was in agreement with the combined number of positive signals determined by the group-specific assays in most fecal samples, except in gull feces. On the other hand, the number of group-specific assay signals was lower in all water samples tested, suggesting that other enterococcal species are present in these samples. While the results highlight the value of genus- and group-specific assays for detecting the major enterococcal groups in environmental water samples, additional studies are needed to determine further the diversity, distributions, and relative abundances of all enterococcal species found in water.
Sparse Representation on Graphs by Tight Wavelet Frames and Applications
Creators: name: Dong, Bin
Publisher: name: arXiv
Year: 2014
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: In this paper, we introduce a new (constructive) characterization of tight wavelet frames on non-flat domains in both continuum setting, i.e. on manifolds, and discrete setting, i.e. on graphs; discuss how fast tight wavelet frame transforms can be computed and how they can be effectively used to process graph data. We start with defining the quasi-affine systems on a given manifold $\cM$ that is formed by generalized dilations and shifts of a finite collection of wavelet functions $Ψ:=\{ψ_j: 1\le j\le r\}\subset L_2(\R)$. We further require that $ψ_j$ is generated by some refinable function $ϕ$ with mask $a_j$. We present the condition needed for the masks $\{a_j: 0\le j\le r\}$ so that the associated quasi-affine system generated by $Ψ$ is a tight frame for $L_2(\cM)$. Then, we discuss how the transition from the continuum (manifolds) to the discrete setting (graphs) can be naturally done. In order for the proposed discrete tight wavelet frame transforms to be useful in applications, we show how the transforms can be computed efficiently and accurately by proposing the fast tight wavelet frame transforms for graph data (WFTG). Finally, we consider two specific applications of the proposed WFTG: graph data denoising and semi-supervised clustering. Utilizing the sparse representation provided by the WFTG, we propose $\ell_1$-norm based optimization models on graphs for denoising and semi-supervised clustering. On one hand, our numerical results show significant advantage of the WFTG over the spectral graph wavelet transform (SGWT) by [1] for both applications. On the other hand, numerical experiments on two real data sets show that the proposed semi-supervised clustering model using the WFTG is overall competitive with the state-of-the-art methods developed in the literature of high-dimensional data classification, and is superior to some of these methods.
Pan-Greenland mapping of supraglacial rivers, lakes, and water-filled crevasses in a cool summer (2018) and a warm summer (2019)
Creators: name: Zhang, Wensong
name: Yang, Kang
name: Smith, Laurence C.
name: Wang, Yuhan
name: van As, Dirk
name: Noël, Brice
name: Lu, Yao
name: Liu, Jinyu
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 370799
subject: Hydrology not elsewhere classified
classificationCode: 370704
subject: Surface water hydrology
classificationCode: 370901
subject: Geomorphology and earth surface processes
classificationCode: 370202
subject: Climatology

description: Maps reported in the manuscript "Pan-Greenland mapping of supraglacial rivers, lakes, and water-filled crevasses in a cool summer (2018) and a warm summer (2019)"
Hybrid molecularly imprinted polymers for targeted separation and enrichment of 10-hydroxycamptothecin in Camptotheca acuminata Decne
Creators: name: Xu, Yanwei
name: Tan, Yulian
name: Majeed, Zahid
name: Nie, Fang
name: Zheng, Kaili
name: Li, Zhonghao
name: Yang, Lian
name: Zhao, Chunjian
name: Li, Chunying
Publisher: name: Taylor & Francis
Year: 2023
Subjects: Biophysics
Biochemistry
Physical Sciences not elsewhere classified
Medicine
Pharmacology
Biotechnology
Environmental Sciences not elsewhere classified
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified

description: The molecularly imprinted polymer was synthesized using 3-aminopropylthiosilane-methacrylic acid monomer (APTES-MAA) as the functional monomer and 10-hydroxycamptothecin (HCPT) as the template, based on computer simulation. The hybrid molecularly imprinted polymers (HMIPs) were characterized using Fourier transform infrared spectroscopy, thermogravimetric analysis, particle size measurement, scanning electron microscopy and energy dispersive X-ray spectroscopy. It has been shown that HMIPs are irregularly shaped and porous, with particle sizes ranging mainly from 130 to 211 nm. At 298 K, the HMIPs exhibit a maximum adsorption capacity of 8.35 mg·g−1 for HCPT and demonstrate good adsorption specificity (α = 5.38). The pseudo-second-order reaction mechanism suggests that the equilibrium adsorption capacity of HCPT on HMIPs is 8.11 mg·g−1. Finally, HCPT was successfully separated and enriched from the extract of Camptotheca acuminata Decne. seeds using HMIPs.
An Analysis of Potential Interactions between Heightened Alcohol Consumption, Systemic Inflammation, and Accelerated Brain Aging
Creators: name: Walker, Ann
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2023

description: This project aims to examine and draw potential associations of alcohol consumption throughout the lifespan (and addictive behaviors) with elevated concentrations of inflammatory markers and a heightened risk of accelerated brain aging (and potential development of memory-deficit disorders). This was done analyzing blood samples and MRI scans from a previously collected data set by the Cognition and Addiction Behavioral Neuroscience lab at Chapel Hill. MRI scans were analyzed using a machine-learning program called brainageR.
Classification of SU(4) X SU(2) X U(1) Heterotic-String Models
Creators: name: Faraggi, Alon E.
name: Sonmez, Hasan
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The free fermionic construction of the heterotic string in four dimensions produced a large space of three generation models with the underlying $SO(10)$ embedding of the Standard Model states. The $SO(10)$ symmetry is broken to a subgroup directly at the string scale. Over the past few years free fermionic models with the Pati-Salam and flipped $SU(5)$ subgroups have been classified. In this paper we extend this classification program to models in which the $SO(10)$ symmetry is broken at the string level to the $SU(4)\times SU(2)_L\times U(1)_R$ (SU421) subgroup. The subspace of free fermionic models that we consider corresponds to symmetric ${\mathbb{Z}}_2 \times {\mathbb{Z}}_2$ orbifolds. We provide a general argument that shows that this class of SU421 free fermionic models cannot produce viable three generation models.
description: Publication Version (Notes: 16 Pages & References added)
Diet Complexity and Estrogen Receptor β Status Affect the Composition of the Murine Intestinal Microbiota
Creators: name: Dabney, Alan
name: Allred, Clinton D.
name: Watson, Sara E.
name: Sturino, Joseph M.
name: Thomas, Laura N.
name: Azcarate-Peril, M. Andrea
name: Menon, Rani
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: ABSTRACT Intestinal microbial dysbiosis contributes to the dysmetabolism of luminal factors, including steroid hormones (sterones) that affect the development of chronic gastrointestinal inflammation and the incidence of sterone-responsive cancers of the breast, prostate, and colon. Little is known, however, about the role of specific host sterone nucleoreceptors, including estrogen receptor β (ERβ), in microbiota maintenance. Herein, we test the hypothesis that ERβ status affects microbiota composition and determine if such compositionally distinct microbiota respond differently to changes in diet complexity that favor Proteobacteria enrichment. To this end, conventionally raised female ERβ +/+ and ERβ −/− C57BL/6J mice (mean age of 27 weeks) were initially reared on 8604, a complex diet containing estrogenic isoflavones, and then fed AIN-76, an isoflavone-free semisynthetic diet, for 2 weeks. 16S rRNA gene surveys revealed that the fecal microbiota of 8604-fed mice and AIN-76-fed mice differed, as expected. The relative diversity of Proteobacteria , especially the Alphaproteobacteria and Gammaproteobacteria , increased significantly following the transition to AIN-76. Distinct patterns for beneficial Lactobacillales were exclusive to and highly abundant among 8604-fed mice, whereas several Proteobacteria were exclusive to AIN-76-fed mice. Interestingly, representative orders of the phyla Proteobacteria , Bacteroidetes , and Firmicutes , including the Lactobacillales , also differed as a function of murine ERβ status. Overall, these interactions suggest that sterone nucleoreceptor status and diet complexity may play important roles in microbiota maintenance. Furthermore, we envision that this model for gastrointestinal dysbiosis may be used to identify novel probiotics, prebiotics, nutritional strategies, and pharmaceuticals for the prevention and resolution of Proteobacteria -rich dysbiosis.
Spatial fluctuation theorem
Creators: name: Pérez-Espigares, Carlos
name: Redig, Frank
name: Giardinà, Cristian
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: For non-equilibrium systems of interacting particles and for interacting diffusions in d dimensions, a novel fluctuation relation is derived. The theorem establishes a quantitative relation between the probabilities of observing two current values in different spatial directions. The result is a consequence of spatial symmetries of the microscopic dynamics, generalizing in this way the Gallavotti-Cohen fluctuation theorem related to the time-reversal symmetry. This new perspective opens up the possibility of direct experimental measurements of fluctuation relations of vectorial observables.
description: 10 pages, 1 figure
Search for new phenomena in events with a photon and missing transverse momentum in $pp$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
Creators: name: ATLAS Collaboration
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Results of a search for new phenomena in events with an energetic photon and large missing transverse momentum with the ATLAS experiment at the LHC are reported. Data were collected in proton--proton collisions at a center-of-mass energy of 8 TeV and correspond to an integrated luminosity of 20.3 fb$^{-1}$. The observed data are well described by the expected Standard Model backgrounds. The expected (observed) upper limit on the fiducial cross section for the production of such events is 6.1 (5.3) fb at 95% confidence level. Exclusion limits are presented on models of new phenomena with large extra spatial dimensions, supersymmetric quarks, and direct pair production of dark-matter candidates.
description: 14 pages plus author list + cover pages (28 pages total), 19 figures, 1 table, submitted to Physical Review D, All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/EXOT-2014-06. Fig 13 has been replaced and submitted as an Erratum: http://dx.doi.org/10.1103/PhysRevD.92.059903
Mobile Elements in a Single-Filament Orange Guaymas Basin Beggiatoa (“Candidatus Maribeggiatoa”) sp. Draft Genome: Evidence for Genetic Exchange with Cyanobacteria
Creators: name: MacGregor, Barbara J.
name: Biddle, Jennifer F.
name: Teske, Andreas
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: ABSTRACT The draft genome sequence of a single orange Beggiatoa (“ Candidatus Maribeggiatoa”) filament collected from a microbial mat at a hydrothermal site in Guaymas Basin (Gulf of California, Mexico) shows evidence of extensive genetic exchange with cyanobacteria, in particular for sensory and signal transduction genes. A putative homing endonuclease gene and group I intron within the 23S rRNA gene; several group II catalytic introns; GyrB and DnaE inteins, also encoding homing endonucleases; multiple copies of sequences similar to the fdxN excision elements XisH and XisI (required for heterocyst differentiation in some cyanobacteria); and multiple sequences related to an open reading frame (ORF) (00024_0693) of unknown function all have close non- Beggiatoaceae matches with cyanobacterial sequences. Sequences similar to the uncharacterized ORF and Xis elements are found in other Beggiatoaceae genomes, a variety of cyanobacteria, and a few phylogenetically dispersed pleiomorphic or filamentous bacteria. We speculate that elements shared among filamentous bacterial species may have been exchanged in microbial mats and that some of them may be involved in cell differentiation.
Additional file 2 of Fever and health-seeking behaviour among migrants living along the Thai-Myanmar border: a mixed-methods study
Creators: name: Khirikoekkong, Napat
name: Asarath, Supa-at
name: Munruchaitrakun, Mayreerat
name: Blay, Naw
name: Waithira, Naomi
name: Cheah, Phaik Yeong
name: Nosten, François
name: Lubell, Yoel
name: Landier, Jordi
name: Althaus, Thomas
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy

description: Additional file 2: Figure S1. Geographic distribution of attendance to healthcare services, by nearest town to participants’ house. Figure S2. CIT model evaluating demographic and socio-economic determinants for seeking healthcare in case of fever persistence. Hospital, geographic variables. Figure S3. CIT model evaluating demographic and socio-economic determinants for seeking healthcare in case of fever persistence. Hospital, socio-demographic and economic variables. Figure S4. CIT model evaluating demographic and socio-economic determinants for seeking healthcare in case of fever persistence. NGO free clinic, geographic variables. Figure S5. CIT model evaluating demographic and socio-economic determinants for seeking healthcare in case of fever persistence. NGO free clinic, socio-demographic and economic variables. Figure S6. CIT model evaluating demographic and socio-economic determinants for seeking healthcare in case of fever persistence. Health post, geographic variables. Figure S7. CIT model evaluating demographic and socio-economic determinants for seeking healthcare in case of fever persistence. Health post, socio-demographic and economic variables. Figure S8. CIT model evaluating demographic and socio-economic determinants for seeking healthcare in case of fever persistence. Private clinic, geographic variables. Figure S9. Diversity of phrases or set of terms to describe fever.
A new methodology to test galaxy formation models using the dependence of clustering on stellar mass
Creators: name: Campbell, David J. R.
name: Baugh, Carlton M.
name: Mitchell, Peter D.
name: Helly, John C.
name: Gonzalez-Perez, Violeta
name: Lacey, Cedric G.
name: Lagos, Claudia del P.
name: Simha, Vimal
name: Farrow, Daniel J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present predictions for the two-point correlation function of galaxy clustering as a function of stellar mass, computed using two new versions of the GALFORM semi-analytic galaxy formation model. These models make use of a high resolution, large volume N-body simulation, set in the WMAP7 cosmology. One model uses a universal stellar initial mass function (IMF), while the other assumes different IMFs for quiescent star formation and bursts. Particular consideration is given to how the assumptions required to estimate the stellar masses of observed galaxies (such as the choice of IMF, stellar population synthesis model and dust extinction) influence the perceived dependence of galaxy clustering on stellar mass. Broad-band spectral energy distribution fitting is carried out to estimate stellar masses for the model galaxies in the same manner as in observational studies. We show clear differences between the clustering signals computed using the true and estimated model stellar masses. As such, we highlight the importance of applying our methodology to compare theoretical models to observations. We introduce an alternative scheme for the calculation of the merger timescales for satellite galaxies in GALFORM, which takes into account the dark matter subhalo information from the simulation. This reduces the amplitude of small-scale clustering. The new merger scheme offers improved or similar agreement with observational clustering measurements, over the redshift range 0 < z < 0.7. We find reasonable agreement with clustering measurements from GAMA, but find larger discrepancies for some stellar mass ranges and separation scales with respect to measurements from SDSS and VIPERS, depending on the GALFORM model used.
description: Accepted for publication in MNRAS; 20 pages, 9 figure, 2 tables
OPTIMISATION OF THE OPTICAL BAND GAP OF AEROSOL ASSISTED CHEMICAL VAPOUR DEPOSITED SnS THIN FILM SEMICONDUCTOR
Creators: name: Daniel, Thomas Ojonugwa
Publisher: name: Zenodo
Year: 2024

description: The conductivity of a SnS semiconductor is impacted by the electron trap connected to the grain boundary, which hinders the attainment of the threshold voltage necessary for transistor functioning. On glass substrates, SnS thin films with thicknesses ranging from 0.2 to 0.40 μm were formed using aerosol assisted chemical vapour deposition. Utilizing energy dispersive X-ray spectroscopy, profilometry, X-ray diffractometer, and scanning electron microscopy, the optical band gap properties, composition, and microstructure of the SnS thin film were assessed. It was discovered that the Sn and S elements in SnS thin films altered in composition as the films' thickness increased. The increase in crystallites for thicker films may be the cause of the reduction in optical band gap with increasing film thickness. The SnS thin film’s energy band gap decrease as a result of an increase in crystalline nature brought on by an increase in adsorption atom mobility with thickness.
Polycyclovorans algicola gen. nov., sp. nov., an Aromatic-Hydrocarbon-Degrading Marine Bacterium Found Associated with Laboratory Cultures of Marine Phytoplankton
Creators: name: Green, David H.
name: Semple, Kirk T.
name: Whitman, William B.
name: Nichols, Peter D.
name: Gutierrez, Tony
name: Aitken, Michael D.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: ABSTRACT A strictly aerobic, halotolerant, rod-shaped bacterium, designated strain TG408, was isolated from a laboratory culture of the marine diatom Skeletonema costatum (CCAP1077/1C) by enrichment with polycyclic aromatic hydrocarbons (PAHs) as the sole carbon source. 16S rRNA gene sequence analysis placed this organism within the order Xanthomonadales of the class Gammaproteobacteria . Its closest relatives included representatives of the Hydrocarboniphaga-Nevskia-Sinobacter clade (<92% sequence similarity) in the family Sinobacteraceae . The strain exhibited a narrow nutritional spectrum, preferring to utilize aliphatic and aromatic hydrocarbon compounds and small organic acids. Notably, it displayed versatility in degrading two- and three-ring PAHs. Moreover, catechol 2,3-dioxygenase activity was detected in lysates, indicating that this strain utilizes the meta -cleavage pathway for aromatic compound degradation. Cells produced surface blebs and contained a single polar flagellum. The predominant isoprenoid quinone of strain TG408 was Q-8, and the dominant fatty acids were C 16:0 , C 16:1 ω7 c , and C 18:1 ω7 c . The G+C content of the isolate's DNA was 64.3 mol% ± 0.34 mol%. On the basis of distinct phenotypic and genotypic characteristics, strain TG408 represents a novel genus and species in the class Gammaproteobacteria for which the name Polycyclovorans algicola gen. nov., sp. nov., is proposed. Quantitative PCR primers targeting the 16S rRNA gene of this strain were developed and used to show that this organism is found associated with other species of marine phytoplankton. Phytoplankton may be a natural biotope in the ocean where new species of hydrocarbon-degrading bacteria await discovery and which contribute significantly to natural remediation processes.
In-situ x-ray diffraction and the evolution of polarization during the growth of ferroelectric superlattices
Creators: name: Bein, Benjamin
name: Hsing, Hsiang-Chun
name: Callori, Sara J.
name: Sinsheimer, John
name: Chinta, Priya V.
name: Headrick, Randall L.
name: Dawber, Matthew
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In epitaxially strained ferroelectric thin films and superlattices, the ferroelectric transition temperature can lie above the growth temperature. Ferroelectric polarization and domains should then evolve during the growth of a sample, and electrostatic boundary conditions may play an important role. In this work, ferroelectric domains, surface termination, average lattice parameter and bilayer thickness are simultaneously monitored using in-situ synchrotron x-ray diffraction during the growth of BaTiO$_3$/SrTiO$_3$ superlattices on SrTiO$_3$ substrates by off-axis RF magnetron sputtering. The technique used allows for scan times substantially faster than the growth of a single layer of material. Effects of electric boundary conditions are investigated by growing the same superlattice alternatively on SrTiO$_3$ substrates and 20nm SrRuO$_3$ thin films on SrTiO$_3$ substrates. These experiments provide important insights into the formation and evolution of ferroelectric domains when the sample is ferroelectric during the growth process.
Why Orange Guaymas Basin Beggiatoa spp. Are Orange: Single-Filament-Genome-Enabled Identification of an Abundant Octaheme Cytochrome with Hydroxylamine Oxidase, Hydrazine Oxidase, and Nitrite Reductase Activities
Creators: name: Biddle, Jennifer F.
name: Hegg, Eric L.
name: Teske, Andreas
name: MacGregor, Barbara J.
name: Matthysse, Ann G.
name: Staunton, Eric
name: Siebert, Jason R.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: ABSTRACT Orange, white, and yellow vacuolated Beggiatoaceae filaments are visually dominant members of microbial mats found near sea floor hydrothermal vents and cold seeps, with orange filaments typically concentrated toward the mat centers. No marine vacuolate Beggiatoaceae are yet in pure culture, but evidence to date suggests they are nitrate-reducing, sulfide-oxidizing bacteria. The nearly complete genome sequence of a single orange Beggiatoa (“ Candidatus Maribeggiatoa”) filament from a microbial mat sample collected in 2008 at a hydrothermal site in Guaymas Basin (Gulf of California, Mexico) was recently obtained. From this sequence, the gene encoding an abundant soluble orange-pigmented protein in Guaymas Basin mat samples (collected in 2009) was identified by microcapillary reverse-phase high-performance liquid chromatography (HPLC) nano-electrospray tandem mass spectrometry (μLC–MS-MS) of a pigmented band excised from a denaturing polyacrylamide gel. The predicted protein sequence is related to a large group of octaheme cytochromes whose few characterized representatives are hydroxylamine or hydrazine oxidases. The protein was partially purified and shown by in vitro assays to have hydroxylamine oxidase, hydrazine oxidase, and nitrite reductase activities. From what is known of Beggiatoaceae physiology, nitrite reduction is the most likely in vivo role of the octaheme protein, but future experiments are required to confirm this tentative conclusion. Thus, while present-day genomic and proteomic techniques have allowed precise identification of an abundant mat protein, and its potential activities could be assayed, proof of its physiological role remains elusive in the absence of a pure culture that can be genetically manipulated.
Diversity of Rickettsiales in the Microbiome of the Lone Star Tick, Amblyomma americanum
Creators: name: Apperson, Charles S.
name: Parobek, Christian M.
name: Weiss, Sophie
name: Knight, Rob
name: Gonzalez, Antonio
name: Meshnick, Steven R.
name: Roe, R. Michael
name: Van Treuren, Will
name: Juliano, Jonathan J.
name: Ponnusamy, Loganathan
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: ABSTRACT Ticks are important vectors for many emerging pathogens. However, they are also infected with many symbionts and commensals, often competing for the same niches. In this paper, we characterize the microbiome of Amblyomma americanum (Acari: Ixodidae), the lone star tick, in order to better understand the evolutionary relationships between pathogens and nonpathogens. Multitag pyrosequencing of prokaryotic 16S rRNA genes (16S rRNA) was performed on 20 lone star ticks (including males, females, and nymphs). Pyrosequencing of the rickettsial sca0 gene (also known as ompA or rompA ) was performed on six ticks. Female ticks had less diverse microbiomes than males and nymphs, with greater population densities of Rickettsiales . The most common members of Rickettsiales were “ Candidatus Rickettsia amblyommii” and “ Candidatus Midichloria mitochondrii.” “ Ca . Rickettsia amblyommii” was 2.6-fold more common in females than males, and there was no sequence diversity in the sca0 gene. These results are consistent with a predominantly vertical transmission pattern for “ Ca . Rickettsia amblyommii.”
Deliverable D-JRP19-WP3.4, Report on the genetic population structure of C. parvum and G.duodenalis
Creators: name: CACCIO', SIMONE MARIO
name: Troell, Karin
name: Betson, Martha
name: Christain Klotz
Publisher: name: Zenodo
Year: 2022
Subjects: Cryptosporidium parvum
Giardia duodenalis
Population structure

description: This is a deliverable of the OHEJP project : PARADISE, and deals with the population structure of the parasitic pathogens Cryptosporidium parvum and Giardia duodenalis as inferred from genetic data.
Magnon spectrum in ferromagnets with a skyrmion
Creators: name: Aristov, D. N.
name: Kravchenko, S. S.
name: Sorokin, A. O.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The analysis of the spin wave excitations in two-dimensional isotropic Heisenberg ferromagnet is performed with a single skyrmion in the ground state. We employ the ideas of semiclassical quantization method, duly modified for the use of the lattice model and Maleyev-Dyson boson representation of spin operators. The resulting Schrödinger equation for magnons describes the dispersion and wave functions of spin-wave excitations with strictly non-negative spectrum. In contrast to usual ferromagnet, we demonstrate the existence of three zero modes, corresponding to conformal symmetries spontaneously violated by the skyrmion configuration.
description: 6 pages, 2 figures, final version
Additional file 1 of Fever and health-seeking behaviour among migrants living along the Thai-Myanmar border: a mixed-methods study
Creators: name: Khirikoekkong, Napat
name: Asarath, Supa-at
name: Munruchaitrakun, Mayreerat
name: Blay, Naw
name: Waithira, Naomi
name: Cheah, Phaik Yeong
name: Nosten, François
name: Lubell, Yoel
name: Landier, Jordi
name: Althaus, Thomas
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy

description: Additional file 1. BEFIT study topic guide and questionnaire. This additional file contains topic guide used for in-depth interview and focus group discussion (Phase I) and the questionnaire survey used for data collection Phase II of this study, and the questionnaires were used to create an OpenDataKit version (online) to use on tablets.
Factors Affecting the Uptake and Retention of Vibrio vulnificus in Oysters
Creators: name: Noble, Rachel T.
name: Froelich, Brett A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: ABSTRACT Vibrio vulnificus , a bacterium ubiquitous in oysters and coastal water, is capable of causing ailments ranging from gastroenteritis to grievous wound infections or septicemia. The uptake of these bacteria into oysters is often examined in vitro by placing oysters in seawater amended with V. vulnificus . Multiple teams have obtained similar results in studies where laboratory-grown bacteria were observed to be rapidly taken up by oysters but quickly eliminated. This technique, along with suggested modifications, is reviewed here. In contrast, the natural microflora within oysters is notoriously difficult to eliminate via depuration. The reason for the transiency of exogenous bacteria is that those bacteria are competitively excluded by the oyster's preexisting microflora. Evidence of this phenomenon is shown using in vitro oyster studies and a multiyear in situ case study. Depuration of the endogenous oyster bacteria occurs naturally and can also be artificially induced, but both of these events require extreme conditions, natural or otherwise, as explained here. Finally, the “viable but nonculturable” (VBNC) state of Vibrio is discussed. This bacterial torpor can easily be confused with a reduction in bacterial abundance, as bacteria in this state fail to grow on culture media. Thus, oysters collected from colder months may appear to be relatively free of Vibrio but in reality harbor VBNC cells that respond to exogenous bacteria and prevent colonization of oyster matrices. Bacterial-uptake experiments combined with studies involving cell-free spent media are detailed that demonstrate this occurrence, which could explain why the microbial community in oysters does not always mirror that of the surrounding water.
Polycyclic Aromatic Hydrocarbon Degradation of Phytoplankton-Associated Arenibacter spp. and Description of Arenibacter algicola sp. nov., an Aromatic Hydrocarbon-Degrading Bacterium
Creators: name: Mishamandani, Sara
name: Berry, David
name: Rhodes, Glenn
name: Gutierrez, Tony
name: Semple, Kirk T.
name: Nichols, Peter D.
name: Whitman, William B.
name: Aitken, Michael D.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: ABSTRACT Pyrosequencing of the bacterial community associated with a cosmopolitan marine diatom during enrichment with crude oil revealed several Arenibacter phylotypes, of which one (OTU-202) had become significantly enriched by the oil. Since members of the genus Arenibacter have not been previously shown to degrade hydrocarbons, we attempted to isolate a representative strain of this genus in order to directly investigate its hydrocarbon-degrading potential. Based on 16S rRNA sequencing, one isolate (designated strain TG409 T ) exhibited >99% sequence identity to three type strains of this genus. On the basis of phenotypic and genotypic characteristics, strain TG409 T represents a novel species in the genus Arenibacter , for which the name Arenibacter algicola sp. nov. is proposed. We reveal for the first time that polycyclic aromatic hydrocarbon (PAH) degradation is a shared phenotype among members of this genus, indicating that it could be used as a taxonomic marker for this genus. Kinetic data for PAH mineralization rates showed that naphthalene was preferred to phenanthrene, and its mineralization was significantly enhanced in the presence of glass wool (a surrogate for diatom cell surfaces). During enrichment on hydrocarbons, strain TG409 T emulsified n -tetradecane and crude oil, and cells were found to be preferentially attached to oil droplets, indicating an ability by the strain to express cell surface amphiphilic substances (biosurfactants or bioemulsifiers) as a possible strategy to increase the bioavailability of hydrocarbons. This work adds to our growing knowledge on the diversity of bacterial genera in the ocean contributing to the degradation of oil contaminants and of hydrocarbon-degrading bacteria found living in association with marine eukaryotic phytoplankton.
Compartilhamento de dados de pesquisa: análise de requisitos do Dataverse
Creators: name: Veiga, Viviane
name: Penedo, Erick
name: Dib, Simone
name: Machado, Rejane Ramos
name: Barbosa, Sônia
Publisher: name: Zenodo
Year: 2022

description: Apresentação realizada na sessão O meu Póster em 40 segundos da 13ª Conferência Lusófona de Ciência Aberta, formato híbrido, de 10 a 12 de outubro de 2022.
BLMGroup – Ontology-based Maintanence
Creators: name: Compagno, Francesco
Publisher: name: Zenodo
Year: 2023
Subjects: ontology
standard
data management
global workshop
ontology commons ecosystem
FAIR

description: Adige S.p.A., part of the enterprise group BLMGroup, manufactures laser-cutting machines. These machines are complex, their maintenance, in particular, requires advanced expertise. With the goal of reorganizing the knowledge management strategy of maintenance expertise, the company investigates semantic technologies in the OntoCommons project with the collaboration of the Laboratory for Applied Ontology (CNR-ISTC). The expected results are, among others, a decrease in the time required to solve previously encountered problems and an increment in the information that can be extracted from maintenance records. The resulting efforts produced ontologies containing domain terms, as well as methodological guidelines for functional and structural modeling of engineering systems, and failure analysis.
Targeting multifunctional human ALDOA in cancer signaling
Creators: name: Stancu, Bogdan Gabriel
Publisher: name: The University of Texas at Austin
Year: 2018
Subjects: Aldolase
ALDOA
Cancer
HIF-1
Hypoxia
Warburg effect
Inhibitor

description: Human fructose-bisphosphate aldolase A (ALDOA) is a key enzyme in glycolysis that catalyzes the conversion of fructose 1,6-bisphosphate to glyceraldehyde 3-phosphate and dihydroxyacetone phosphate. ALDOA has also been shown to play key moonlighting roles associated with cellular structure, motility and proliferation. This aldolase isoenzyme is significantly overexpressed in a number of human tumors and has been shown to have oncogenic potential. We have demonstrated that ALDOA overexpression has further inference through cycling of hypoxia inducible transcription factor-1 (HIF-1) regulation. This feed-forward loop mediated through AMPK is a new target to consider in the irregular hypoxic environment of solid tumors. The body of work that follows presents five different methods of targeting and inhibiting ALDOA function. Using small molecule probes, the function and regulation of these iterations is characterized, towards better understanding of the role of ALDOA in cells and in cancer
Additional file 3 of Fever and health-seeking behaviour among migrants living along the Thai-Myanmar border: a mixed-methods study
Creators: name: Khirikoekkong, Napat
name: Asarath, Supa-at
name: Munruchaitrakun, Mayreerat
name: Blay, Naw
name: Waithira, Naomi
name: Cheah, Phaik Yeong
name: Nosten, François
name: Lubell, Yoel
name: Landier, Jordi
name: Althaus, Thomas
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy

description: Additional file 3: Table S1. Fever terminology among Karen and non-Karen participants on the Thai-Myanmar border. Table S2. Health-seeking behaviour at fever onset according to all determinants from 200 Phase II participants Of 202 in total, 2 participants reporting an “Other” behaviour are not shown here. Each participant could provide only one response. Table S3. Health-seeking behaviour in case of fever persistence according to all determinants from Phase II participants (n = 202). Participants could report attending multiple facilities. Table S4. Declared criteria of healthcare service preference in case of fever persistence among Phase II participants.
Asymptotics of the energy of sections of greedy energy sequences on the unit circle, and some conjectures for general sequences
Creators: name: López-García, Abey
name: Wagner, Douglas A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In this paper we investigate the asymptotic behavior of the Riesz $s$-energy of the first $N$ points of a greedy $s$-energy sequence on the unit circle, for all values of $s$ in the range $0\leq s
description: Title, abstract and Introduction have been modified. The results from the first version remain unchanged. This paper is dedicated to Ed Saff on the occasion of his 70th birthday. There are 21 pages and 5 figures