cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A foot in both camps: A constructivist grounded theory study exploring the experience of nurses who became homeopaths
Creators: name: Worsley, Sandra
Publisher: name: CQUniversity
Year: 2023
Subjects: classificationCode: 420899
subject: Traditional, complementary and integrative medicine not elsewhere classified
classificationCode: 420599
subject: Nursing not elsewhere classified

description: This research aimed to understand the factors attracting qualified nurses to the practice of homeopathy and the influence if any, their respective identities as nurses and homeopaths had on their nursing and homeopathic practice. Using constructivist grounded theory methodology, data was collected via semi-structured interviews with fifteen registered nurses, who were also registered homeopaths, from three states of Australia. Data from the study resulted in the development of a substantive theory, the ‘Theory of Congruent Positioning’, which proposes that the nurses in this study were attracted to the practice of homeopathy through a process of experiential and transformative learning, whereby they connected with the core tenets of homeopathic philosophy. The ‘Theory of Congruent Positioning’ also provides insights into how the respective nursing and homeopathic identities of the nurses in this study influenced their respective nursing and homeopathic practice.
The fluorescence properties of contemporary tooth-coloured restorative materials: Its forensic and clinical implications
Creators: name: Kiran, Ramya
Publisher: name: CQUniversity
Year: 2023
Subjects: classificationCode: 320302
subject: Dental materials and equipment
classificationCode: 320399
subject: Dentistry not elsewhere classified

description: This thesis explores the fluorescence properties of tooth-coloured dental restorative materials, and how these can be used to identify the presence of restorations. It includes studies of how fluorescence is affected by moisture and by exposure to high temperatures. These results have forensic and clinical applications in dentistry.
Smooth tail index estimation
Creators: name: Müller, Samuel
name: Rufibach, Kaspar
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistics Theory (math.ST)
subject: Methodology (stat.ME)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 62G32, 62G07

description: Both parametric distribution functions appearing in extreme value theory - the generalized extreme value distribution and the generalized Pareto distribution - have log-concave densities if the extreme value index gamma is in [-1,0]. Replacing the order statistics in tail index estimators by their corresponding quantiles from the distribution function that is based on the estimated log-concave density leads to novel smooth quantile and tail index estimators. These new estimators aim at estimating the tail index especially in small samples. Acting as a smoother of the empirical distribution function, the log-concave distribution function estimator reduces estimation variability to a much greater extent than it introduces bias. As a consequence, Monte Carlo simulations demonstrate that the smoothed version of the estimators are well superior to their non-smoothed counterparts, in terms of mean squared error.
description: 17 pages, 5 figures. Slightly changed Pickand's estimator, added some more introduction and discussion
The evolution of the mass-size relation for early type galaxies from z~1 to the present: dependence on environment, mass-range and detailed morphology
Creators: name: Huertas-Company, Marc
name: Mei, Simona
name: Shankar, Francesco
name: Delaye, Lauriane
name: Raichoor, Anand
name: Covone, Giovanni
name: Finoguenov, Alexis
name: Kneib, Jean-Paul
name: Fèvre, Olivier Le
name: Povic, Mirjana
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: [abridged] We study the dependence of the galaxy size evolution on morphology, stellar mass and large scale environment for a sample of 298 group and 384 field quiescent early-type galaxies from the COSMOS survey, selected from z~1 to the present, and with masses $log(M/M_\odot)>10.5$. The galaxy size growth depends on galaxy mass and early-type galaxy morphology, e.g., elliptical galaxies evolve differently than lenticular galaxies. At the low mass end -$10.511.2$- approximately doubled their size. Interestingly, lenticular galaxies display different behavior: they appear more compact on average and they do show a size growth of \sim60% since z=1 independent of stellar mass. We compare our results with state-of-the art semi-analytic models. While major and minor mergers can account for most of the galaxy size growth, we find that with present data and the theoretical uncertainties in the modeling we cannot state clear evidence favoring either merger or mass loss via quasar and/or stellar winds as the primary mechanism driving the evolution. The galaxy mass--size relation and the size growth do not depend on environment in the halo mass range explored in this work (field to group mass $log(M_h/M_\odot)<14$), i.e., group and field galaxies follow the same trends, which is at variance with predictions from current hierarchical models that show a clear dependence of size growth on halo mass for massive ellipticals -$log(M_*/M_\odot)>11.2$.
description: MNRAS in press, updated version after revision
Non-stationary Magnetic Microstructures in Stellar Thin Accretion Discs
Creators: name: Montani, Giovanni
name: Petitta, Jacopo
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We examine the morphology of magnetic structures in thin plasma accretion discs, generalizing a stationary ideal MHD model to the time-dependent visco-resistive case. Our analysis deals with small scale perturbations to a central dipole-like magnetic field, which give rise -- as in the ideal case -- to the periodic modulation of magnetic flux surfaces along the radial direction, corresponding to the formation of a toroidal current channels sequence. These microstructures suffer an exponential damping in time because of the non-zero resistivity coefficient, allowing us to define a configuration lifetime which mainly depends on the midplane temperature and on the length scale of the structure itself. By means of this lifetime we show that the microstructures can exist within the inner region of stellar discs in a precise range of temperatures, and that their duration is consistent with local transient processes (minutes to hours).
description: 14 text pages, 5 figures, to be published on PRE
Linear Connections on the Two Parameter Quantum Plane
Creators: name: Georgelin, Y.
name: Masson, T.
name: Wallet, J. -C.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Quantum Algebra (math.QA)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We apply a recently proposed definition of a linear connection in non commutative geometry based on the natural bimodule structure of the algebra of differential forms to the case of the two-parameter quantum plane. We find that there exists a non trivial family of linear connections only when the two parameters obeys a specific relation.
description: 7 pages, TeX
Anomalous phonon behavior of carbon nanotubes: First-order influence of external load
Creators: name: Aghaei, Amin
name: Dayal, Kaushik
name: Elliott, Ryan S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: External loads typically have a indirect influence on phonon curves, i.e., they influence the phonon curves by changing the state about which linearization is performed. In this paper, we show that in nanotubes, the axial load has a direct first-order influence on the long-wavelength behavior of the transverse acoustic (TA) mode. In particular, when the tube is force-free the TA mode frequencies vary quadratically with wave number and have curvature (second derivative) proportional to the square-root of the nanotube's bending stiffness. When the tube has non-zero external force, the TA mode frequencies vary linearly with wave number and have slope proportional to the square-root of the axial force. Therefore, the TA phonon curves -- and associated transport properties -- are not material properties but rather can be directly tuned by external loads. In addition, we show that the out-of-plane shear deformation does {\em not} contribute to this mode and the unusual properties of the TA mode are exclusively due to bending. Our calculations consist of 3 parts: first, we use a linear chain of atoms as an illustrative example that can be solved in close-form; second, we use our recently-developed symmetry-adapted phonon analysis method to present direct numerical evidence; and finally, we present a simple mechanical model that captures the essential physics of the geometric nonlinearity in slender nanotubes that couples the axial load directly to the phonon curves. We also compute the Density of States and show the significant effect of the external load.
Granular Impact Model as an Energy-Depth Relation
Creators: name: Clark, Abram H.
name: Behringer, Robert P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Velocity-squared drag forces are common in describing an object moving through a granular material. The resulting force law is a nonlinear differential equation, and closed-form solutions of the dynamics are typically obtained by making simplifying assumptions. Here, we consider a generalized version of such a force law which has been used in many studies of granular impact. We show that recasting the force law into an equation for the kinetic energy versus depth, K(z), yields a linear differential equation, and thus general closed-form solutions for the velocity versus depth. This approach also has several advantages in fitting such models to experimental data, which we demonstrate by applying it to data from 2D impact experiments. We also present new experimental results for this model, including shape and depth dependence of the velocity-squared drag force.
Supplementary material for "Augmented reality applied to visualization of biological data"
Creators: name: Mariano, Diego
Publisher: name: Zenodo
Year: 2021

description: This document contains the appendix for the paper "Augmented reality applied to visualization of biological data". Content: APPENDIX A - Use of the PyMOL program. APPENDIX B - Use of Blender software. APPENDIX C - Use of EnTiTi Creator programs.
Precision agriculture: Exploration of machine learning approaches for assessing mango crop quantity
Creators: name: Koirala, Anand
Publisher: name: CQUniversity
Year: 2023
Subjects: classificationCode: 460299
subject: Artificial intelligence not elsewhere classified

description: A machine vision based system is proposed to replace the current in-orchard manual estimates of mango fruit yield, to inform harvest resourcing and marketing. The state-of-the-art in fruit detection was reviewed, highlighting the recent move from traditional image segmentation methods to convolution neural network (CNN) based deep learning methods. An experimental comparison of several deep learning based object detection frameworks (single shot detectors versus two-staged detectors) and several standard CNN architectures was undertaken for detection of mango panicles and fruit in tree images. The machine vision system used images of individual trees captured during night time from a moving platform mounted with a Global Navigation Satellite System (GNSS) receiver and a LED panel floodlight. YOLO, a single shot object detection framework, was re-designed and named as MangoYOLO. MangoYOLO outperformed existing state-of-the-art deep learning object detection frameworks in terms of fruit detection time and accuracy and was robust in use across different cultivars and cameras. MangoYOLO achieved F1 score of 0.968 and average precision of 0.983 and required just 70 ms per image (2048 × 2048 pixel) and 4417 MB memory. The annotated image dataset was made publicly available. Approaches were trialled to relate the fruit counts from tree images to the actual harvest count at an individual tree level. Machine vision based estimates of fruit load ranged between -11% to +14% of packhouse fruit counts. However, estimation of fruit yield (t/ha) requires estimation of fruit size as well as fruit number. A fruit sizing app for smart phones was developed as an affordable in-field solution. The solution was based on segmentation of the fruit in image using colour features and estimation of the camera to fruit perimeter distance based on use of fruit allometrics. For mango fruit, RMSEs of 5.3 and 3.7 mm were achieved on length and width measurements under controlled lighting, and RMSEs of 5.5 and 4.6 mm were obtained in-field under ambient lighting. Further, estimation of harvest timing can be informed by assessment of the spread of flowering. Deep learning object detection methods were deployed for assessment of the number and development stage of mango panicles, on tree. Methods to deal with different orientations of flower panicles in tree images were implemented. An R2 >0.8 was achieved between machine vision count of panicles on images and in-field human count per tree. Similarly, mean average precision of 69.1% was achieved for classification of panicle stages. These machine vision systems form a foundation for estimation of crop load and harvest timing, and for automated harvesting.
Gaugino production in proton-proton collisions at a center-of-mass energy of 8 TeV
Creators: name: Fuks, Benjamin
name: Klasen, Michael
name: Lamprea, David R.
name: Rothering, Marcel
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Motivated by hints for a light Standard Model-like Higgs boson and a shift in experimental attention towards electroweak supersymmetry particle production at the CERN LHC, we update in this paper our precision predictions at next-to-leading order of perturbative QCD matched to resummation at the next-to-leading logarithmic accuracy for direct gaugino pair production in proton-proton collisions with a center-of-mass energy of 8 TeV. Tables of total cross sections are presented together with the corresponding scale and parton density uncertainties for benchmark points adopted recently by the experimental collaborations, and figures are presented for up-to-date model lines attached to them. Since the experimental analyses are currently obtained with parton showers matched to multi-parton matrix elements, we also analyze the precision of this procedure by comparing invariant-mass and transverse-momentum distributions obtained in this way to those obtained with threshold and transverse-momentum resummation.
description: 28 pages, 7 figures, 9 tables; version to appear in JHEP
Galaxies Rotation Curves in the Grumiller's Modified Gravity
Creators: name: Lin, Hai-Nan
name: Li, Ming-Hua
name: Li, Xin
name: Chang, Zhe
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The effective potential in the Grumiller's modified gravity [D. Grumiller, Phys. Rev. Lett {\bf 105}, 211303 (2010)] includes the Newtonian potential and a Rindler term. The fitting to the rotation curve data of eight galaxies suggests a universal Rindler acceleration $a\approx 0.30\times 10^{-10}$ m s$^{-2}$. We do a two-parameter fit first, with the mass-to-light ratio ($Υ_*$) and the Rindler acceleration ($a$) as free parameters. It is found that the data of six out of the eight galaxies fit well with the prediction of theory in the range $0\lesssim r \lesssim 40$ kpc, although the theoretical curves show a tendency of arising beyond this range. The Rindler accelerations of the six well-fitted galaxies have the same magnitude, with an average value $\bar{a}\approx0.30\times 10^{-10}$ m s$^{-2}$. Inspired by this fact, we then carry out a one-parameter ($Υ_*$) fit to the six galaxies, with $a$ fixed at $\bar{a}$, and find that the theory can still reproduce the observation. The value of Rindler acceleration we get here is a quarter of that of Milgrom's MOND. For the rest two galaxies, NGC5055 and DDO154, the fitting results are significantly improved if the photometric scale length ($h$) is included as another free parameter.
description: 12 pages, 3 figures, 4 tables
Autecology of Cassia brewsteri with respect to galactomannan production
Creators: name: Cunningham, DC
Publisher: name: CQUniversity
Year: 2017
Subjects: classificationCode: 310501
subject: Anthropological genetics
classificationCode: 310599
subject: Genetics not elsewhere classified
classificationCode: 520201
subject: Behavioural genetics
classificationCode: 410206
subject: Landscape ecology

description: Cassia brewsteri (Caesalpiniaceae) is a tree endemic to central Queensland. In this thesis, the potential of the plant as a source of seed gums (galactomannans) with industrial applications has been assessed in terms of genetic diversity, distribution and habitat, phenology, propagation, insect pests, seed chemistry, gelling characteristics and economic viability. Radio-labelled DNA Amplification Fingerprinting was used to indicate the level of genetic variation within C. brewsteri. Phylogenetic analyses supported the maintenance of the four native Cassia taxa at species level and the division of C. brewsteri into two subspecies. Ecological parameters associated with 124 sites of natural or cultivated occurrence were characterised in terms of soil and vegetation type, and potential cultivation areas predicted using the climate modelling software BIOCLIM. A broad area of eastern Queensland was shown to be suitable for the cultivation of the tree. Reproductive phenology of the tree was documented and found to allow for a confined harvest period (once per year). Seed germination was achieved most effectively by mechanical scarification while propagation by rooted cuttings was unsuccessful. Heavy predation of seed by Caryedon serratus (an exotic bruchid) was noted, and the potential impact of this insect on the ecology of its host, and the potential for infestation of Arachis hypogaea (peanut) is discussed. Cassia brewsteri seed galactomannan was demonstrated to be acceptable for use as a food gum. It is comparable to Ceratonia siliqua ( carob) gum in gelling strength, and contains less than 10 ppm of the toxin chrysophanic acid. However, preliminary estimates of yield and return on investment from plantation culture of Cassia brewsteri for seed production were not encouraging.
The practice of mental health nurses: The need to include sexuality in consumer care
Creators: name: Quinn, Chris
Publisher: name: CQUniversity
Year: 2023
Subjects: classificationCode: 420313
subject: Mental health services

description: Sexuality is fundamental to health, quality of life, and general well-being. For consumers with enduring mental illness their sexual desire, capacity and ability to maintain previous sexual activities or make decisions about sex may be altered by their illness, or side effects from psychotropic medications. The inclusion of sexual concerns in care has been identified as a low priority in nursing. It has been suggested that nurses, including those working in mental health settings lack preparation, confidence and the skill base to address sexual concerns of consumers. The aim of the research was to explore nurses’ attitudes and practices in assessing and supporting the sexuality of consumers, and to explore the usefulness of the BETTER model to support them to improve this area of practice. The BETTER Model was developed to assist oncology nurses to include sexual health and sexuality concerns in their assessments. An exploratory qualitative research study was conducted utilising individual in-depth interviews with 14 mental health nurses from inpatient and community settings in three stages over a two year period. Initial findings identified: low priority towards sexual concerns; avoidance of the issue; and referring to other professionals, even though they acknowledged that others also evade this topic. Avoiding embarrassing consumers, gender and boundary concerns, sexual side effects if psychotropic medication, and the fear of negatively influencing adherence to medication, were particularly influential. At stage 2 participants described including sexual concerns in their practice, arising from awareness building and improved insight that sexual concerns are a legitimate aspect of care, rather than following the structured approach of the BETTER model. Two years later, at stage 3, participants continued to include the sexual concerns of consumers in their practice, considering this an important component of holistic practice. The findings informed the development of the 5A’s framework for including sexual concerns in mental health nursing practice. The framework explains how the experience of applying these skills facilitated acknowledgement of the important role they play in supporting consumers who are experiencing sexual concerns.
On the existence of large degree Galois representations for fields of small discriminant
Creators: name: Rouse, Jeremy
name: Thorne, Frank
Publisher: name: arXiv
Year: 2012
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: Primary 11R29, Secondary 11R42

description: Let $L/K$ be a Galois extension of number fields. We prove two lower bounds on the maximum of the degrees of the irreducible complex representations of ${\rm Gal}(L/K)$, the sharper of which is conditional on the Artin Conjecture and the Generalized Riemann Hypothesis. Our bound is nontrivial when $[K : \mathbb{Q}]$ is small and $L$ has small root discriminant, and might be summarized as saying that such fields can't be "too abelian."
description: Update on history of discriminant bounds in introduction
Detecting binary neutron star systems with spin in advanced gravitational-wave detectors
Creators: name: Brown, Duncan A.
name: Harry, Ian
name: Lundgren, Andrew
name: Nitz, Alexander H.
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The detection of gravitational waves from binary neutron stars is a major goal of the gravitational-wave observatories Advanced LIGO and Advanced Virgo. Previous searches for binary neutron stars with LIGO and Virgo neglected the component stars' angular momentum (spin). We demonstrate that neglecting spin in matched-filter searches causes advanced detectors to lose more than 3% of the possible signal-to-noise ratio for 59% (6%) of sources, assuming that neutron star dimensionless spins, $c\mathbf{J}/GM^2$, are uniformly distributed with magnitudes between 0 and 0.4 (0.05) and that the neutron stars have isotropically distributed spin orientations. We present a new method for constructing template banks for gravitational wave searches for systems with spin. We present a new metric in a parameter space in which the template placement metric is globally flat. This new method can create template banks of signals with non-zero spins that are (anti-)aligned with the orbital angular momentum. We show that this search loses more than 3% of the maximium signal-to-noise for only 9% (0.2%) of BNS sources with dimensionless spins between 0 and 0.4 (0.05) and isotropic spin orientations. Use of this template bank will prevent selection bias in gravitational-wave searches and allow a more accurate exploration of the distribution of spins in binary neutron stars.
description: 11 pages, 10 figures
Effect of Momordica charantia fruit extract on  vascular complication in type 1 diabetic rats
Creators: name: Abas, Razif
name: Othman, Faizah
name: Thent, Zar Chi
Publisher: name: IfADo - Leibniz Research Centre for Working Environment and Human Factors, Dortmund
Year: 2015
Subjects: Momordica charantia
fruit extract
diabetes mellitus
vascular complication

description: Diabetes mellitus is one of the risk factors in the development of vascular complications. Decreased nitric oxide (NO) production and increased lipid peroxidation in diabetes mellitus are the dominant exaggerating factors. Mormodica charantia (MC) was proven to be useful in improving diabetes mellitus and its complications. In the present study, a total of 40 male Sprague-Dawley rats were used. Diabetes was induced by a single dose (50 mg/kg) of streptozotocin (STZ), intramuscularly. Following 4 weeks of STZ induction, the animals were equally divided into five groups (n = 8); Control group (Ctrl), control group treated with MC (Ctrl-MC), diabetic untreated group (DM-Ctrl), diabetic group treated with MC (DM-MC) and diabetic group treated with metformin 150 g/kg (DM-Met). Oral administration of the MC fruit extract (1.5 g/kg) was continued for 28 days. DM-MC group showed a significant decrease (P < 0.05) in blood pressure, total cholesterol and triglyceride levels compared to the DM-Ctrl group. Aortic tissue NO level was significantly increased and malondialdehyde level was decreased in the DM-MC group. Immunohistochemical staining showed an increase in eNOS expression in the endothelial lining of the DM-MC group. Similarly, morphological deterioration of the aortic tissues was reverted to normal. In summary, treatment with the MC fruit extract exerted the significant vasculoprotective effect in the type 1 diabetic rat model.
description: EXCLI Journal; 14:Doc179; ISSN 1611-2156
Information economics: The disconnect between information communication technology and strategic intent
Creators: name: Kankanady, Raghavendra
Publisher: name: CQUniversity
Year: 2023
Subjects: classificationCode: 420308
subject: Health informatics and information systems
classificationCode: 460908
subject: Information systems organisation and management
classificationCode: 359999
subject: Other commerce, management, tourism and services not elsewhere classified

description: The dynamic nature and rapid evolution of Information and Communications Technology (ICT) in the last decade (which is also referred to as the digital revolution or industrial revolution 4.0) has given little time for organisations to evaluate the nature of the technological change to their business. This research project aims to identify if there is a disconnection between organisational strategic intent and ICT use, such as, analyze ICT adoption and use issues from various perspectives concerning digital evolution, strategic outcomes and long-term objectives of the organisation, and report findings. The study also aims to identify the alignment factors for technology use with strategic intent. In today's digital age, the healthcare industry has been undergoing a transformational change in patient care pathways and patient safety with the help of digital technologies. Digital technologies such as electronic medical records, mobile applications, telehealth, assisted diagnosis, and prevention have been changing the ways healthcare services are being delivered to patients. But little success has been achieved in implementing these transformations due to the complexity of ICT requirements in healthcare. This challenge in achieving successful digital transformation has given rise to a knowledge gap requiring further research. Until now, a review of the literature reveals few studies have been undertaken to understand connections and disconnections between strategic intent and technology use in healthcare. Therefore, this study aims to understand if there is a disconnect between organisational strategic intent and technology used in the digital age. The primary audience for this research is senior policy and decision-makers in healthcare and senior ICT staff. This research is designed to understand the technology use and its impact on organisational strategic intent from the perspective of clinical staff, non-clinical staff, and executive management. The multi-stage mixed-method design has been used in this study. The findings indicate that technology should be part of strategic intent, and technology adoption should flow from the edge inwards. The findings will enhance the delivery of digital transformation initiatives in healthcare and enable more successful digital transformations with lesser technology adoption, and use issues.
Reduction of cytotoxicity of benzalkonium chloride and octenidine by Brilliant Blue G
Creators: name: Bartok, Melinda
name: Tandon, Rashmi
name: Alfaro-Espinoza, Gabriela
name: Ullrich, Matthias S.
name: Gabel, Detlef
Publisher: name: IfADo - Leibniz Research Centre for Working Environment and Human Factors
Year: 2015
Subjects: Brilliant Blue G
Brilliant Blue R
benzalkonium chloride
octenidine dihydrochloride
P2x7 receptor antagonist

description: The irritative effects of preservatives found in ophthalmologic solution, or of antiseptics used for skin disinfection is a consistent problem for the patients. The reduction of the toxic effects of these compounds is desired. Brilliant Blue G (BBG) has shown to meet the expected effect in presence of benzalkonium chloride (BAK), a well known preservative in ophthalmic solutions, and octenidine dihydrochloride (Oct), used as antiseptic in skin and wound disinfection. BBG shows a significant protective effect on human corneal epithelial (HCE) cells against BAK and Oct toxicity, increasing the cell survival up to 51 % at the highest BAK or Oct concentration tested, which is 0.01 %, both at 30 min incubation. Although BBG is described as a P2x7 receptor antagonist, other selective P2x7 receptor antagonists, OxATP (adenosine 5’-triphosphate-2’,3’-dialdehyde) and DPPH (N’-(3,5-dichloropyridin-4-yl)-3-phenylpropanehydrazide), did not reduce the cytotoxicity of neither BAK nor Oct. Therefore we assume that the protective effect of BBG is not due to its action on the P2x7 receptor. Brilliant Blue R (BBR), a dye similar to BBG, was also tested for protective effect on BAK and Oct toxicity. In presence of BAK no significant protective effect was observed. Instead, with Oct a comparable protective effect was seen with that of BBG. To assure that the bacteriostatic effect is not affected by the combinations of BAK/BBG, Oct/BBG and Oct/BBR, bacterial growth inhibition was analyzed on different Gram-negative and Gram-positive bacteria. All combinations of BAK or Oct with BBG hinder growth of Gram-positive bacteria. The combinations of 0.001 % Oct and BBR above 0.025 % do not hinder the growth of B. subtilis. For Gram-negative bacteria, BBG and BBR reduce, but do not abolish, the antimicrobial effect of BAK nor of Oct. In conclusion, the addition of BBG at bacterial inhibitory concentrations is suggested in the ready-to-use ophthalmic preparations and antiseptic solutions.
description: EXCLI Journal; 14:Doc123; ISSN 1611-2156
On Equivalence of M$^\natural$-concavity of a Set Function and Submodularity of Its Conjugate
Creators: name: Murota, Kazuo
name: Shioura, Akiyoshi
Publisher: name: arXiv
Year: 2017
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 52B40

description: A fundamental theorem in discrete convex analysis states that a set function is M$^\natural$-concave if and only if its conjugate function is submodular. This paper gives a new proof to this fact.
description: 10 pages
How to Biowaste Club Playbook
Creators: name: Diedrich, Anna-Carina
name: Grossi, Francesca
name: Woo, Fiona
name: Ioannidou, Dimitra
name: Schumacher, Felix
Publisher: name: Zenodo
Year: 2023
Subjects: biowaste
stakeholder engagement

description: A Biowaste Club (BC) is an institutionalised platform for multi-stakeholder engagement. Members of the Biowaste Club are all local and regional actors along the biowaste value chain, such as waste management companies, research institutions, public authorities, etc. Biowaste Club meetings take place twice per year, set-up (i.e., participants) and formats can vary, depending on the local needs and thus on the agenda. This manual is designed to support you on how to plan and conduct a Biowaste Club Meeting (BCM) in your lighthouse city or region. Thus, the manual will help you to... Understand the overall structure and function of the local Biowaste Clubs; Plan and conduct effective stakeholder engagement; Grasp what tools can be used to facilitate fruitful exchanges at BCMs; Adapt meetings to a virtual setting. This is a first version of the playbook. The contents will be reviewed throughout the project lifetime, adding new tools and integrating learnings from the different events. The Playbook is comprised of four main sections: The HOOP Biowaste Club Playbook, including information on the key steps to consider for running successful BCMs Toolbox Digital Toolbox Templates If you have any questions, comments, additions to this playbook, please approach Francesca Grossi (francesca.grossi@scp-centre.org) and Dimitra Ioannidou (dimitra.ioannidou@scp-centre.org).
Michael von Albrecht: Antike und Neuzeit. Texte und Themen
Creators: name: Fritsch, Andreas
Publisher: name: Forum Classicum
Year: 2019

description: Rezension zu: Michael von Albrecht: Antike und Neuzeit. Texte und Themen. Band 1: Antike und deutsche Dichtung. Heidelberg: Universitätsverlag Winter 2019, 231 S. (ISBN 978-3-8253-6930-9)
description: Forum Classicum, Nr. 2 (2019): Forum Classicum
Almost everywhere Hölder continuity of gradients to non-diagonal parabolic systems
Creators: name: Burczak, Jan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35K55, 35K92, 35B65

description: We present a local almost everywhere regularity result for a general nonlinear non-diagonal parabolic system, which main part depends on symmetric part of the gradient.
Parafermion excitations in superfluid of quasi-molecular chains
Creators: name: Kuklov, A. B.
name: Tsvelik, A. M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We study a quantum phase transition in a system of dipoles confined in a stack of $N$ identical one-dimensional lattices (tubes) polarized perpendicularly to the lattices. In this arrangement the intra-lattice interaction is purely repulsive preventing the system collapse and the inter-lattice one is attractive. The dipoles may represent polar molecules or indirect excitons. The transition separates two phases; in one of them superfluidity (understood as algebraic decay of the corresponding correlation functions) takes place in each individual lattice, in the other (chain superfluid) the order parameter is the product of bosonic operators from all lattices. We argue that in the presence of finite inter-lattice tunneling the transition belongs to the universality class of the $q=N$ two-dimensional classical Potts model. For $N=2,3,4$ the corresponding low energy field theory is the model of Z$_N$ parafermions perturbed by the thermal operator. Results of Monte Carlo simulations are consistent with these predictions. The detection scheme for the chain superfluid of indirect excitons is outlined.
description: This is a significantly modified and revised version of arXiv:1203.0351 submitted to the NJP issue focused on Majorana fermions. 14 revtex pages, 7 figures. Section on detecting chains of indirect excitons is added; typos corrected
Strong chemisorption of CO$_2$ on B$_{10}$-B$_{13}$ planar-type clusters
Creators: name: Santos-Putungan, Alexandra B.
name: Stojić, Nataša
name: Binggeli, Nadia
name: Paraan, Francis N. C.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: An ab initio density functional study was performed investigating the adsorption of CO$_2$ on the neutral boron B$_{n}$ ($n = 10-13$) clusters, characterized by planar and quasiplanar ground-state atomic structures. For all four clusters, we found strong chemisorption energy of CO$_2$ reaching 1.6 eV for B$_{12}$ at the cluster edge sites with the adsorbed molecule in the plane of the cluster. A configuration with chemisorbed dissociated CO$_2$ molecule also exists for B$_{11}$ and B$_{13}$ clusters. The strong adsorption is due to the bending of the CO$_2$ molecule, which provides energetically accessible fully in-plane frontier molecular orbitals matching the edge states of the clusters. At the same time, the intrinsic dipole moment of a bent CO$_2$ molecule facilitates the transfer of excess electronic charge from the cluster edges to the molecule.
description: 18 pages, 7 figures
Implementation des Metadatenmanagement von Geodaten der SFB806-Datenbank
Creators: name: Kürner, Daniel
Publisher: name: CRC806-Database
Year: 2013

description: Die vorliegende Arbeit beschreibt die Implementation des Metadatenmanagements für Geodaten aus den Projekten des SFB806. Es soll ein internetbasiertes Informationssystem geschaffen werden, das den Mitgliedern des Pro jektes ermöglicht, Daten an einer zentralen Stelle zu veröffentlichen und somit der projektinternen Forschungsgemeinschaft zugänglich zu machen. Das Informationssystem soll eine sichere und nachhaltige Archivierung der Forschungsergebnisse aus den Projekten des SFB806 gewährleisten und gleichermaßen als integrierte Datenbasis die Forschungsarb eit der Pro jektmitglieder des SFB806 unterstützen.
Molecular mechanisms of etoposide
Creators: name: Montecucco, Alessandra
name: Zanetta, Francesca
name: Biamonti, Giuseppe
Publisher: name: IfADo - Leibniz Research Centre for Working Environment and Human Factors
Year: 2015
Subjects: etoposide

description: Etoposide derives from podophyllotoxin, a toxin found in the American Mayapple. It was first synthesized in 1966 and approved for cancer therapy in 1983 by the U.S. Food and Drug Administration (Hande, 1998). Starting from 1980s several studies demonstrated that etoposide targets DNA topoisomerase II activities thus leading to the production of DNA breaks and eliciting a response that affects several aspects of cell metabolisms. In this review we will focus on molecular mechanisms that account for the biological effect of etoposide.
description: EXCLI Journal; 14:Doc95; ISSN 1611-2156
Semialgebraic methods and generalized sum-product phenomena
Creators: name: Jing, Yifan
name: Roy, Souktik
name: Tran, Chieu-Minh
Publisher: name: arXiv
Year: 2019
Subjects: subject: Logic (math.LO)
subject: Algebraic Geometry (math.AG)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 14P10, 03C64, 05D10

description: For a bivariate $P(x,y) \in \mathbb{R}[x,y]\setminus (\mathbb{R}[x] \cup \mathbb{R}[y])$, our first result shows that for all finite $A \subseteq \mathbb{R}$, $|P(A,A)|\geq α|A|^{5/4}$ with $α=α(\mathrm{deg} P) \in \mathbb{R}^{>0}$ unless $$ P(x,y)=f(γu(x)+δu(y)) \text{ or } P(x,y)=f(u^m(x)u^n(y)) $$ for some univariate $f, u \in \mathbb{R}[t]\setminus \mathbb{R}$, constants $γ, δ\in \mathbb{R}^{\neq 0}$, and $m, n\in \mathbb{N}^{\geq 1}$. This resolves the symmetric nonexpanders classification problem proposed by de Zeeuw. Our second and third results are sum-product type theorems for two polynomials, generalizing the classical result by Erdos and Szemerédi as well as a theorem by Shen. We also obtained similar results for $\mathbb{C}$, and from this deduce results for fields of characteristic $0$ and fields of large prime characteristic. The proofs of our results use tools from semialgebraic/o-minimal geometry.
description: 23 pages
Maschek, Dominik: Die römischen Bürgerkriege
Creators: name: Lobe, Michael
Publisher: name: Forum Classicum
Year: 2019

description: Rezension zu: Maschek, Dominik: Die römischen Bürgerkriege. Archäologie und Geschichte einer Krisenzeit. Zabern 2018. 352 S. (ISBN: 978-3-8053-4913-0)
description: Forum Classicum, Nr. 2 (2019): Forum Classicum
Seiberg-Witten equations and non-commutative spectral curves in Liouville theory
Creators: name: Chekhov, Leonid
name: Eynard, Bertrand
name: Ribault, Sylvain
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose that there exist generalized Seiberg-Witten equations in the Liouville conformal field theory, which allow the computation of correlation functions from the resolution of certain Ward identities. These identities involve a multivalued spin one chiral field, which is built from the stress-energy tensor. We solve the Ward identities perturbatively in an expansion around the heavy asymptotic limit, and check that the first two terms of the Liouville three-point function agree with the known result of Dorn, Otto, Zamolodchikov and Zamolodchikov. We argue that such calculations can be interpreted in terms of the geometry of non-commutative spectral curves.
description: 25 pages, v2: minor changes in Appendices A.3 and B.1
Selective capture of CO2 over N2 and CH4: B clusters and their size effects
Creators: name: Santos-Putungan, Alexandra B.
name: Stojic, Natasa
name: Binggeli, Nadia
name: Paraan, Francis N. C.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Using density-functional theory (DFT), we investigate the selectivity of adsorption of CO2 over N2 and CH4 on planar-type B clusters, based on our previous finding of strong chemisorption of CO2 on the B10-13 planar and quasiplanar clusters. We consider the prototype B8 and B12 planar-type clusters and perform a comparative study of the adsorption of the three molecules on these clusters. We find that, at room temperature, CO2 can be separated from N2 by selective binding to the B12 cluster and not to the B8 cluster. Selective adsorption of CO2 over CH4 at room temperature is possible for both clusters. Based on our DFT-adsorption data (including also a semi-infinite Boron sheet) and the available literature-adsorption value for N2 on the planar-type B36 cluster, we discuss the selectivity trend of CO2 adsorption over N2 and CH4 with planar-cluster size, showing that it extends over sizes including B10-13 clusters and significantly larger.
description: 4 figures, 20 pages
Bayesian nonparametric Plackett-Luce models for the analysis of preferences for college degree programmes
Creators: name: Caron, François
name: Teh, Yee Whye
name: Murphy, Thomas Brendan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: In this paper we propose a Bayesian nonparametric model for clustering partial ranking data. We start by developing a Bayesian nonparametric extension of the popular Plackett-Luce choice model that can handle an infinite number of choice items. Our framework is based on the theory of random atomic measures, with the prior specified by a completely random measure. We characterise the posterior distribution given data, and derive a simple and effective Gibbs sampler for posterior simulation. We then develop a Dirichlet process mixture extension of our model and apply it to investigate the clustering of preferences for college degree programmes amongst Irish secondary school graduates. The existence of clusters of applicants who have similar preferences for degree programmes is established and we determine that subject matter and geographical location of the third level institution characterise these clusters.
description: Published in at http://dx.doi.org/10.1214/14-AOAS717 the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Institute of Mathematical Statistics (http://www.imstat.org)
On the possibility of a measurement of the CP Majorana phase in the 0νββ-decay
Creators: name: Simkovic, F.
name: Bilenky, S. M.
name: Faessler, Amand
name: Gutsche, Th.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In view of recent measurements of the mixing angle θ_{13} a possibility to determine the difference of two CP Majorana phases of the neutrino mixing matrix from the study of neutrinoless double-beta decay is investigated. We show that in the case of the inverted hierarchy of neutrino masses it might be possible if neutrinoless double-beta decay will be observed. The required experimental accuracies and uncertainty in the calculated nuclear matrix elements of the process are discussed.
description: 9 pages, 2 figures, to be published in Phy. Rev. D
Counting extensions revisited
Creators: name: Šileikis, Matas
name: Warnke, Lutz
Publisher: name: arXiv
Year: 2019
Subjects: subject: Combinatorics (math.CO)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 05C80, 60C05, 60F20

description: We consider rooted subgraphs in random graphs, i.e., extension counts such as (i) the number of triangles containing a given vertex or (ii) the number of paths of length three connecting two given vertices. In 1989, Spencer gave sufficient conditions for the event that, with high probability, these extension counts are asymptotically equal for all choices of the root vertices. For the important strictly balanced case, Spencer also raised the fundamental question as to whether these conditions are necessary. We answer this question by a careful second moment argument, and discuss some intriguing problems that remain open.
description: 22 pages, 2 figures. Minor edits, to appear in Random Structures and Algorithms (RSA)
Design characteristics for a device to quantify airborne alkali deposition
Creators: name: Ingrey, IF
Publisher: name: CQUniversity
Year: 2021
Subjects: classificationCode: 340101
subject: Analytical spectrometry

description: The first part of this research involved an in-depth study of near-infrared spectroscopy (NIRS) and chemometrics techniques for the quantification of sodium hydroxide, sodium carbonate and sodium chloride in an aqueous environment. The study was then extended with the hydrolysis of carbonate species being taken into account. The aim was to determine the precision and limit of detection (LOD) of the NIRS technique as an analytical tool for alkali measurement.
An intelligent internet search agent based on genetic algorithms
Creators: name: Chen, M
Publisher: name: CQUniversity
Year: 2023
Subjects: classificationCode: 460806
subject: Human-computer interaction

description: Searching the World Wide Web sites is one of the most common tasks performed, and Internet and Intranet searching has become one of the hottest topics. It is also one of the most frustrating tasks. In fact, the situation has become a notorious symbol of the Web's growing size and lack of structure, as well as the inadequacy of Web search technologies. While the Web offers an incredibly rich base of information, organized as a hypertext, it does not provide a uniform and efficient way to retrieve specific information based on user-defined search criteria. In this thesis, an intelligent Internet search agent based on Genetic Algorithms using Java and C++ is reported, which is grounded on automatic textual analysis of Web documents and general-purpose search algorithms. It aims to address the Web search problem by creating dynamic and intelligent search agents that take users' requests and perform realtime, customized searches. The genetic algorithm is used to form an intelligent search strategy for the agent. The crossover and mutation operators are specially designed to deal with the generation of new homepages. Experiments are presented to show the performance and efficiency of the search agent.