cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Comparación clínica de pacientes con cirrosis de origen criptogenica vs otras etiologías atendidos en una IPS especializada de Cartagena
Creators: name: Martínez Pinto, Juan Harvey
Publisher: name: Universidad de Cartagena
Year: 2023
Subjects: subject: Hígado - Enfermedades
subject: Enfermedades hepáticas
subject: Cirrosis hepática
subject: Hígado graso
subject: Degeneración adiposa

description: La cirrosis hepática es una enfermedad crónica con alto índice de mortalidad y morbilidad que afecta en gran medida la calidad de la vida de quienes la padecen. Para realizar un manejo integral que impacte positivamente en su evolución es fundamental determinar su etiología, sin embargo, hasta en un 30% de los casos no es posible determinarla, denominándose cirrosis criptogénica (CC). Abordar un caso de CC es complejo debido a la imposibilidad de aplicar tratamientos etiológicos específicos, lo cual puede ensombrecer su pronóstico. A la fecha no existen en nuestra región estudios que hayan comparado la CC frente a otras etiologías. Objetivos: Comparar clínicamente y socio-demográficamente a una población con diagnóstico de CC frente a pacientes con cirrosis de otras etiologías en la ciudad de Cartagena. Métodos: Se llevó a cabo un estudio de tipo retrospectivo, transversal, analítico. Se utilizaron los registros clínicos de los pacientes como fuente primaria de la información. La población estuvo constituida por todos los pacientes que acudieron a seguimiento de hepatología en el Centro Médico Gastropack, en la ciudad de Cartagena de Indias, (Colombia), en el período comprendido entre enero de 2012 a 2017, con diagnóstico inequívoco de cirrosis hepática. Inicialmente se procesaron los datos de manera univariada, las variables cualitativas se describieron como proporciones, las cuantitativas mediante medias y desviación estándar, o medianas y rangos intercuartílicos según su distribución. La normalidad de la distribución de las variables se evaluó mediante histogramas y prueba de Shapiro-Wilk. Las variables continuas y categóricas se compararon mediante la prueba Chi-cuadrado. Resultados: Se incluyeron 346 pacientes con cirrosis hepática, la edad promedio fue 67.4 ± 12.7años, con mayor distribución en el género femenino 55.3% (n=188). La etiología más frecuente fue la CC 35% (n=121), seguida de la cirrosis por NASH 107(30.9%) la cirrosis asociada al virus de la hepatitis C 44 (12.7%), la cirrosis por hepatitis autoinmune 31(9.0%), la cirrosis asociada al virus de la hepatitis B 15(4.3%) y la cirrosis asociada al consumo alcohol 14(4,0%). Se evidencio que 208 pacientes (61%) de la población tenía historia de descompensación principalmente a expensas de ascitis 127(36.7%) y que los pacientes con CC tenían niveles más bajos de albumina (P = 0.03) y niveles más altos de INR (P<0.05). Conclusiones: La CC parece tener datos que indican una posibilidad de mayor progresión de la enfermedad por lo que no deben escatimarse esfuerzos en el diagnóstico etiológico de la cirrosis que permitan la aplicación de estrategias terapéuticas etiológicamente dirigidas que dsminuyan la carga de morbimortalidad de la enfermedad hepática crónica.
A Comparative Analysis of Pre and Post Privatization Performances of State Owned Enterprises (SOEs): the Case of Chemical Industry
Creators: name: Tesfaye, Binyam
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2015

description: This paper is intended to examine the pre and post privatization performance of privatized SOEs in the Chemical Industry of Ethiopia. The main concern is to see the financial and operational performances of the case enterprises. The study is based on literature review and used secondary data predominantly. Moreover, some primary data sources were used. Four case firms namely: Alkyd Resin S.C, Addis Ababa Foam and Plastic, Nefas Silk Paint and Addis Ababa Bottle and Glass Factories were taken as point of the study. Primary data were gathered from the respective firms through interview and Annual Audited Financial Reports were reviewed as secondary data source. The study summarizes the privatization performance of the case enterprises in terms of profitability and efficiency measures. The empirical evidence on the financial and operating performances of the privatized enterprises shows a mixed result. The result suggests that the profitability indicators ROS and ROA on average showed a better performance while ROE on average showed a decline. The efficiency measures both sales and income efficiency showed a better performance in all the case firms and the industry [case firms taken as industry] as a whole. While the efficiency measures in terms of the total and fixed asset turnover exhibited a declined performance. The performance indicators as measured by changes in output, change in employment has on average showed a positive increment. The leverage, as expected as in the literature, resulted in a decline at industry level. The current ratio has also improved after privatization. Moreover, the results indicated an increase in production per employee. The findings of this research showed a mixed impact of privatization over firms' performance
Advancements in optically detected nuclear magnetic resonance applied to nanoscopic GaAs AlGaAs heterostructures
Creators: name: Lenzmann, Björn
Publisher: name: Universität Dortmund
Year: 2003
Subjects: subject: quantum well
subject: GaAs
subject: AlGaAs
subject: ODNMR
subject: nuclear magnetic resonance
subject: exciton
subject: hyperfine coupling
subject: Hanle effect
subject: density matrix
subject: Relaxation
subject: adiabatic
subject: interface defect
subject: strain
subject: optical pumping
subject: NMR
subject: spin temperature
subject: quadrupole interaction
subject: heterostructure
subject: 530

description: This thesis presents advancements in the spectroscopic method of optically detected nuclear magnetic resonance (ODNMR) applied to semiconductor heterostructures to investigate nanoscopic structural details in these systems. Experiments are carried out on type I GaAs/AlGaAs quantum wells of various thicknesses, investigating new aspects about the behaviour of the coupled electron-nuclear spin system. Characterization and interpretation of the specific features of the ODNMR spectra are carried out, providing spectroscopic applications for studying low-dimensional heterostructure systems. Utilizing the sensitivity and selectivity of ODNMR, structural information is revealed about GaAs/AlGaAs interfaces and quantum wells.A high degree of nuclear spin polarization is achieved by optically pumping he coupled electron-nuclear spin system. The hyperfine coupling constant is derived for quantum wells of various thicknesses by calculating the electronic wavefunction within a quantum well and values for the magnetic fields of electronic and nuclear origin are estimated.The ODNMR technique is used to investigate different relaxation processes governing the optical pumping such as the field dependent optical pumping relaxation time, the 'dark' relaxation time and the hyperfine relaxation time. It is shown that delocalized optically oriented electrons do not contribute to polarizing the nuclear spin system. It is assumed that trapping of excitons at interface defects plays the key role in amplifying the hyperfine interaction. A model is presented, to approximate the effect on the hyperfine relaxation time and it is found that the relaxation time is decreased by one to two orders of magnitude compared to unbound excitons.The ODNMR resonance lines show large splitting which are attributed to quadrupole interactions of the nuclei with electric field gradients caused by the neighbouring atoms. The reduction of the cubic symmetry of GaAs is attributed to interfacial effects at the GaAs/AlGaAs barrier, to strain within the quantum well applied externally by the mounting of the sample, and by a homogenous electric field across the sample. The spectra also show significant broadening of the satellite lines, which arises from internal strain created by lattices mismatch of the heterostructure and by monolayer splitting (interface roughness), which creates an additional shear strain component.
A paradox of tournament seeding
Creators: name: Csató, László
Publisher: name: arXiv
Year: 2020
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences
subject: 62F07, 90B90, 91B14

description: We analyse a mathematical model of seeding for sports contests with round-robin qualifying tournaments. The standard seeding system based on coefficients measuring the historical performance of the teams is shown to be unfair as it might potentially punish a team for its better results by having to face stronger opponents on average in the next stage. Major football competitions are revealed to suffer from this weakness. Incentive compatibility can be guaranteed by providing each qualified team with the highest coefficient of all teams that are ranked lower in its qualifying tournament for seeding purposes. Our proposal is illustrated by the 2020/21 UEFA Champions League.
description: 13 pages, 3 tables
title: The effect of glutathione supplementation on intestinal morphology and liver antioxidant status in parenterally fed piglets
Creators: name: White, Julia Meaghan Brianna
Publisher: name: Memorial University of Newfoundland
Year: 2022

description: Total parenteral nutrition (TPN) causes deleterious changes to the gastrointestinal tract (GIT), in part related to the decrease in blood supply that occurs without enteral stimuli. Nitric oxide (NO) regulates blood flow, but in situations of oxidative stress, as with the delivery of oxidized nutrients in TPN, it can react with superoxide and thus limit its function as a vasodilator. We hypothesized that supplementing the antioxidant glutathione to PN would protect NO’s function as a vasodilator, leading to greater blood flow to the GIT. Piglets (8-12 days old) underwent surgery and were randomized to one of three treatment groups for 7 days: control TPN (PN, n=10), control TPN diet with 10 μM glutathione disulfide (GSSG, n=9), or the control TPN diet delivered enterally (EN, n=10). Blood flow (p<0.0001), mucosa weight (p<0.01) and crypt cell proliferation (p<0.01) were higher in the EN compared to both parenterally fed groups. Interestingly, villus height was greater in EN versus PN (p<0.01) but not different from GSSG; liver weight in the GSSG was similar to EN, while PN had a higher liver weight, typical of TPN feeding. The parenteral groups (PN and GSSG) had greater liver antioxidant capacity and less liver lipid peroxidation than EN. These data suggest that glutathione supplementation to TPN delays the changes in intestinal morphology and the route of feeding has a greater effect on antioxidant status than glutathione supplementation in TPN.
Supp. Figure S1 from Behind the developing brains and beating hearts of stem cell-derived embryo models
Creators: name: Amadei, Gianluca
name: Glover, David M.
Publisher: name: The Royal Society
Year: 2022
Subjects: Cell Biology
Developmental Biology

description: Studies over the past decade have shown how stem cells representing embryonic and extra-embryonic tissues of the mouse can self-assemble in the culture dish to recapitulate an astonishing part of early embryonic development. A systematic analysis has demonstrated how pluripotent embryonic stem cells can be induced to behave like the implanting epiblast; how they can interact with trophectoderm stem cells to form a patterned structure resembling the implanting embryo prior to gastrulation; and how the third stem cell type—extra-embryonic endoderm cells—can be incorporated to generate structures that undergo the cell movements and gene expression patterns of gastrulation. Moreover, such stem cell-derived embryo models can proceed to neurulation and establish progenitors for all parts of the brain and neural tube, somites, beating heart structures and gut tube. They develop within extra-embryonic yolk sacs that initiate haematopoiesis. Here we trace this journey of discovery.
On Følner sets in topological groups
Creators: name: Schneider, Friedrich Martin
name: Thom, Andreas
Publisher: name: arXiv
Year: 2016
Subjects: subject: Group Theory (math.GR)
subject: Functional Analysis (math.FA)
subject: General Topology (math.GN)
subject: FOS: Mathematics

description: We extend Følner's amenability criterion to the realm of general topological groups. Building on this, we show that a topological group $G$ is amenable if and only if its left translation action can be approximated in a uniform manner by amenable actions on the set $G$. As applications we obtain a topological version of Whyte's geometric solution to the von Neumann problem and provide an affirmative answer to a question posed by Rosendal.
description: 34 pages, no figures. v2: We added Corollary 4.8 as well as an example of an amenable Polish group which is not F{\o}lner amenable in the sense in Rosendal
Program evaluation in foster care : an examination of organisational effectiveness
Creators: name: Andersen, Janet.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Sojasorte gesucht
Creators: name: Recknagel, Jürgen
name: Blessing, Carola
Publisher: name: Zenodo
Year: 2021

description: Die Preisaussichten für 2021 sind gut. Für hohe Eiweißgehalte gibt es immer öfter Preiszuschläge. Wir sagen, worauf bei der Sortenwahl zu achten ist.
Machine-Learning Number Fields
Creators: name: He, Yang-Hui
name: Lee, Kyu-Hwan
name: Oliver, Thomas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Number Theory (math.NT)
subject: High Energy Physics - Theory (hep-th)
subject: Machine Learning (stat.ML)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We show that standard machine-learning algorithms may be trained to predict certain invariants of algebraic number fields to high accuracy. A random-forest classifier that is trained on finitely many Dedekind zeta coefficients is able to distinguish between real quadratic fields with class number 1 and 2, to 0.96 precision. Furthermore, the classifier is able to extrapolate to fields with discriminant outside the range of the training data. When trained on the coefficients of defining polynomials for Galois extensions of degrees 2, 6, and 8, a logistic regression classifier can distinguish between Galois groups and predict the ranks of unit groups with precision >0.97.
description: 20 pages, 1 figure, 3 tables
Adverse events following CoViD19 vaccination: a hypthesis
Creators: name: Collis, John
Publisher: name: Zenodo
Year: 2023
Subjects: Covid19 vaccine adverse myocarditis

description: Mild myocarditis in particular has been associated with the CoViD19 vaccines. An hypothesis is put forward that suggests this is aused by hypersensitivity reactions to excipients used in the vaccine. It is in Draft form and is work in progress
Adverse events following CoViD19 vaccination: a hypothesis
Creators: name: Collis, John
Publisher: name: Zenodo
Year: 2024
Subjects: Covid19 vaccine adverse myocarditis

description: Mild myocarditis in particular has been associated with the CoViD19 vaccines. An hypothesis is put forward that suggests this is aused by hypersensitivity reactions to excipients used in the vaccine. This is version 4 and consists of two files, the main text and supplementary data. Updates to main text including conclusion and further references.
Beiträge zum Aufbau künstlicher kationischer Oligonukleotid-Analoga mit Platin(II)-Rückgrat
Creators: name: Nowak, Ralf
Publisher: name: Universität Dortmund
Year: 2002
Subjects: subject: Oligonukleotid-Analoga
subject: Palladium(II)-Komplexe
subject: Platin(II)-Komplexe
subject: Antigen-Srategie
subject: Antisense-Strategie
subject: 4,4´-Azopyridin
subject: pKs-Werte
subject: Guanin
subject: 1H-NMR-Spektroskopie
subject: 540

description: Das Hauptziel der vorliegenden Dissertation war die Synthese und Charakterisierung kurzer artifizieller kationischer Oligonukleotid-Analoga mit (kinetisch inertem) Platin(II)-Rückgrat. Diese Verbindungsklasse könnte aufgrund ihrer positiven Ladung und der damit verbundenen potentiell hohen Affinität zu den Polyanionen DNA und RNA im Rahmen der Antigen- und Antisense-Strategie zum Einsatz kommen. Voraussetzung dabei ist, daß in den Nukleobasen die Donor- und Akzeptorstellen für Wasserstoff-Brücken nach dem Watson-Crick- bzw. Hoogsteen-Muster weiterhin zur Verfügung stehen. Außerdem beruht dieser Ansatz auf der Annahme, daß die Platinierung von Nukleobasen an peripheren Positionen eine entsprechende Assoziation nicht nachhaltig verhindert.Der Aufbau der Oligonukleotid-Analoga kann dabei auf drei Grundbausteine zurückgeführt werden: Cisplatin-Einheiten als Endglieder, N-haltige Brückenliganden und Transplatin-Einheiten als Mittelstücke. Die im Rahmen dieser Arbeit synthetisierten (und als End- und Mittelglieder geeigneten) Bausteine enthielten Thyminat-Anionen als Vertreter der Pyrimidinnukleobasen sowie die Modellnukleobase 9-Ethylguanin als Vertreter der Purinnukleobasen. Von den hier getesteten Brückenmolekülen (Ethylendiamin, 4,4´-Bipyridin, 4,4´-Azopyridin, Pyrazin) stellten sich insbesondere die Heterocyclen als erfolgversprechend heraus. So gelang insbesondere die Synthese und Charakterisierung des Trinukleotid-Analogons [en(TH-N1)Pt(µ-pz)Pt(NH3)(9-EtGH-N7)(µ-pz)Pt(TH-N1)en](NO3)4 . 3 H2O. Der zweite Teil dieser Arbeit beschäftigt sich mit dem potentiellen Brückenliganden 4,4´-Azopyridin. Insbesondere die Säure-Base-Eigenschaften und die Möglichkeit zur Bindung der d8-Metall-Ionen Platin(II) und Palladium(II) wurden anhand von 1H-NMR-Spektroskopie untersucht. Von Interesse war dabei die Eigenschaft des 4,4´-Azopyridins, als Brückenligand für zwei Metall-Ionen zu agieren. Obwohl weniger basisch als Pyridin, sind die N1- und N1´- Positionen des 4,4´-Azopyridins durchaus in der Lage, ausreichend starke Bindungen von Platin(II) und Palladium(II) an beiden Enden des Liganden zu ermöglichen. Im dritten Kapitel wird die Reaktion von Platin(II)-Komplexen mit unsubstituiertem Guanin in Abhängigkeit von Edukt0-Konzentrationen und vom pH-Wert beschrieben. Dabei konnten verschiedene ein- und zweikernige Spezies erhalten werden, wobei die Koordination des Platin(II)-Elektrophils über die N1, N7 und N9-Positionen des Guanins erfolgt.
Assessing factors related to clinically advanced fibrosis in patients with Nonalcoholic Fatty Liver Disease or nonalcoholic steatohepatitis
Creators: name: Yu, Anthony William
name: 0009-0005-5238-6464
Publisher: name: The University of Texas at Austin
Year: 2023
Subjects: NAFLD
NASH
Nonalcoholic Fatty Liver Disease
Nonalcoholic steatohepatitis

description: Background: Nonalcoholic Fatty Livery Disease (NAFLD) affects a large population in the US, with significant morbidity and mortality risks associated with advanced fibrosis. The 2023 American Association for the Study of Liver Diseases NAFLD Guidelines recommend using FIB-4, a simple and cost-effective non-invasive test, as a first-line assessment for patients with hepatic steatosis or suspected NAFLD. Early identification of at-risk patients using this tool can inform targeted management decisions and prevent complications. Objective: To describe the clinical profile of NAFLD or nonalcoholic steatohepatitis (NASH) patients in a Texas integrated delivery network and elucidate the local relationship between patient factors and risk of advanced fibrosis. Methods: This observational, retrospective, cross-sectional study utilized existing data from the electronic health record at a large integrated delivery network in Texas. Data were collected during the study period from January 1, 2019, to March 1, 2023. Patient characteristics, comorbidities, labs, and medication orders were collected from the most recent encounter in which a FIB-4 score could be calculated. Chi square tests and ANOVA tests were conducted to evaluate differences among the three fibrosis risk categories. Ordered logistic regression was utilized to assess associations between select variables and the likelihood of having an intermediate or high risk of advanced fibrosis. Results: A total of 56,253 patients were included in the study. 34,839 (61.9%) were Low Risk, 15,578 (27.7%) were Intermediate Risk, and 5,836 (10.4%) were High Risk of advanced fibrosis. Results showed that up to 70.4% of patients were obese within a risk group. Only 49.5% of patients in the High Risk group had at least one gastroenterologist or hepatologist visit. Males, Medicare patients, former smokers, and those with hypertension, type 2 diabetes, and an eGFR <60 had higher odds of being in the Intermediate or High Risk groups. Conclusion: This study highlights the need for early screening, proactive management of metabolic risk factors, and improved care for patients with NAFLD/NASH. The findings indicate a notable prevalence of obesity in the study population, a need for specialist referral for those with high risk of advanced fibrosis, and the importance of routine labs to evaluate metabolic factors.
Financial Sustainability and Outreach of Microfinance Institutions in Ethiopia: the Case of Oromia Credit and Saving Share Company
Creators: name: Sonto, Kedida
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2008

description: In microfinance industry, sustainability is one of the crucial issues attracted the attention of many researchers. This is because it is widely believed that without being sustainable, microfinance institutions can not achieve their objective of reducing poverty. However, some microfinance institutions give little attention to sustainability. They depend on subsidy from government and donor organizations. They also concentrate on providing credit services and ignore saving services which result in lack of reliable source of loan funds. These problems were the major motivations for undertaking this research. This paper attempts to study sustainability of microfinance institutions in Ethiopia taking Oromia Credit and Saving Share Company as case study. For this study both primary and secondary data were used. The data gathered were analyzed by using ratios and percentages. The results indicate that the institution, like other microfinance institutions (MFIs) partly depend on subsidies for the loans it provides. With regard to financial sustainability, it is in good condition. The outreach is increasing in terms of number of clients. The overall efficiency of the institution is improving. However, its performance is weak on areas such as saving mobilization, women participation, and loan officer productivity
Evolution of new regulatory functions on biophysically realistic fitness landscapes
Creators: name: Friedlander, Tamar
name: Prizak, Roshan
name: Barton, Nicholas H.
name: Tkačik, Gašper
Publisher: name: arXiv
Year: 2016
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Molecular Networks (q-bio.MN)
subject: FOS: Biological sciences

description: Regulatory networks consist of interacting molecules with a high degree of mutual chemical specificity. How can these molecules evolve when their function depends on maintenance of interactions with cognate partners and simultaneous avoidance of deleterious "crosstalk" with non-cognate molecules? Although physical models of molecular interactions provide a framework in which co-evolution of network components can be analyzed, most theoretical studies have focused on the evolution of individual alleles, neglecting the network. In contrast, we study the elementary step in the evolution of gene regulatory networks: duplication of a transcription factor followed by selection for TFs to specialize their inputs as well as the regulation of their downstream genes. We show how to coarse grain the complete, biophysically realistic genotype-phenotype map for this process into macroscopic functional outcomes and quantify the probability of attaining each. We determine which evolutionary and biophysical parameters bias evolutionary trajectories towards fast emergence of new functions and show that this can be greatly facilitated by the availability of "promiscuity-promoting" mutations that affect TF specificity.
Synchrotron Emission from Dark Matter Annihilation: Predictions for Constraints from Non-detections of Galaxy Clusters with New Radio Surveys
Creators: name: Storm, Emma
name: Jeltema, Tesla E.
name: Splettstoesser, Megan
name: Profumo, Stefano
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The annihilation of dark matter particles is expected to yield a broad radiation spectrum via the production of Standard Model particles in astrophysical environments. In particular, electrons and positrons from dark matter annihilation produce synchrotron radiation in the presence of magnetic fields. Galaxy clusters are the most massive collapsed structures in the universe, and are known to host $\simμ$G-scale magnetic fields. They are therefore ideal targets to search for, or to constrain the synchrotron signal from dark matter annihilation. In this work we use the expected sensitivities of several planned surveys from the next generation of radio telescopes to predict the constraints on dark matter annihilation models which will be achieved in the case of non-detections of diffuse radio emission from galaxy clusters. Specifically, we consider the Tier 1 survey planned for the Low Frequency Array (LOFAR) at 120 MHz, the EMU survey planned for the Australian Square Kilometre Array Pathfinder (ASKAP) at 1.4 GHz, and planned surveys for APERTIF at 1.4 GHz. We find that, for massive clusters and dark matter masses $\lesssim 100$ GeV, the predicted limits on the annihilation cross section would rule out vanilla thermal relic models for even the shallow LOFAR Tier 1, ASKAP, and APERTIF surveys.
description: accepted to ApJ; removal of LOFAR Tier 2 limits; other minor text changes; conclusions largely unchanged
Amtliche Mitteilungen der Universität Dortmund Nr. 12/97
Creators: name: (:Unkn) Unknown
Publisher: name: Universität Dortmund
Year: 1997
Subjects: subject: 080

description: Amtlicher Teil: Dienstvereinbarung über die Einrichtung, wesentliche Veränderung und Nutzung einer ISDN-fähigen Telekommunikationsanlage (TK-Anlage) in der Universität Dortmund
description: Amtliche Mitteilungen der Universität Dortmund ; 12, 1997
Machine-Learning Arithmetic Curves
Creators: name: He, Yang-Hui
name: Lee, Kyu-Hwan
name: Oliver, Thomas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Number Theory (math.NT)
subject: High Energy Physics - Theory (hep-th)
subject: Machine Learning (stat.ML)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We show that standard machine-learning algorithms may be trained to predict certain invariants of low genus arithmetic curves. Using datasets of size around one hundred thousand, we demonstrate the utility of machine-learning in classification problems pertaining to the BSD invariants of an elliptic curve (including its rank and torsion subgroup), and the analogous invariants of a genus 2 curve. Our results show that a trained machine can efficiently classify curves according to these invariants with high accuracies (>0.97). For problems such as distinguishing between torsion orders, and the recognition of integral points, the accuracies can reach 0.998.
description: 21 pages, 1 figure, 9 tables
Adverse events following CoViD19 vaccination: a hypothesis
Creators: name: Collis, John
Publisher: name: Zenodo
Year: 2023
Subjects: Covid19 vaccine adverse myocarditis

description: Mild myocarditis in particular has been associated with the CoViD19 vaccines. An hypothesis is put forward that suggests this is aused by hypersensitivity reactions to excipients used in the vaccine. It is in Draft form and is work in progress
Nonlinear Einstein paradigm of Brownian motion and localization property of solutions
Creators: name: Christov, Ivan C.
name: Hevage, Isanka Garli
name: Ibraguimov, Akif
name: Islam, Rahnuma
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: Classical Physics (physics.class-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 35K65, 76R50, 35K92, 35C06

description: We employ a generalization of Einstein's random walk paradigm for diffusion to derive a class of multidimensional degenerate nonlinear parabolic equations in non-divergence form. Specifically, in these equations, the diffusion coefficient can depend on both the dependent variable and its gradient, and it vanishes when either one of the latter does. It is known that solutions of such degenerate equations can exhibit finite speed of propagation (so-called localization property of solutions). We give a proof of this property using a De Giorgi--Ladyzhenskaya iteration procedure for non-divergence-from equations. A mapping theorem is then established to a divergence-form version of the governing equation for the case of one spatial dimension. Numerical results via a finite-difference scheme are used to illustrate the main mathematical results for this special case. For completeness, we also provide an explicit construction of the one-dimensional self-similar solution with finite speed of propagation function, in the sense of Kompaneets--Zel'dovich--Barenblatt. We thus show how the finite speed of propagation quantitatively depends on the model's parameters.
description: 17 pages, 3 figures; to appear in Math. Meth. Appl. Sci
A fixed contact angle condition for varifolds
Creators: name: Kagaya, Takashi
name: Tonegawa, Yoshihiro
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 28A75, 49Q15

description: We define a generalized fixed contact angle condition for $n$-varifold and establish a boundary monotonicity formula. The results are natural generalizations of those for the Neumann boundary condition considered by Grüter-Jost.
description: 13 pages, 1 figure
Adverse events following CoViD19 vaccination: a hypothesis
Creators: name: Collis, John
Publisher: name: Zenodo
Year: 2024
Subjects: Covid19 vaccine adverse myocarditis

description: Mild myocarditis in particular has been associated with the CoViD19 vaccines. An hypothesis is put forward that suggests this is aused by hypersensitivity reactions to excipients used in the vaccine. This is version 3 and consists of two files, the main text and supplementary data. The literature search has been widened to include more recent papers.
Children's violence to parents : a critical literature review
Creators: name: Gallagher, Edward .
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Multiscale and multilevel technique for consistent segmentation of nonstationary time series
Creators: name: Cho, Haeran
name: Fryzlewicz, Piotr
Publisher: name: arXiv
Year: 2016
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: In this paper, we propose a fast, well-performing, and consistent method for segmenting a piecewise-stationary, linear time series with an unknown number of breakpoints. The time series model we use is the nonparametric Locally Stationary Wavelet model, in which a complete description of the piecewise-stationary second-order structure is provided by wavelet periodograms computed at multiple scales and locations. The initial stage of our method is a new binary segmentation procedure, with a theoretically justified and rapidly computable test criterion that detects breakpoints in wavelet periodograms separately at each scale. This is followed by within-scale and across-scales post-processing steps, leading to consistent estimation of the number and locations of breakpoints in the second-order structure of the original process. An extensive simulation study demonstrates good performance of our method.
Amtliche Mitteilungen der Universität Dortmund Nr. 05/2002
Creators: name: (:Unkn) Unknown
Publisher: name: Universität Dortmund
Year: 2002
Subjects: subject: 080

description: Amtlicher Teil: Dritte Ordnung zur Änderung der Promotionsordnung für den Fachbereich Chemietechnik an der Universität Dortmund vom 25. März 2002
description: Amtlicher Teil: Vergaberichtlinien für Promotionsstipendien der Universität Dortmund
description: Amtliche Mitteilungen der Universität Dortmund ; 5, 2002
Towards an understanding of parental drug use and its effects on children's welfare
Creators: name: Patton, Nicole.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Singlet Fermion Assisted Dominant Seesaw with Lepton Flavor and Number Violations and Leptogenesis
Creators: name: Parida, M. K.
name: Nayak, Bidyut Prava
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In a recent review Mohapatra has discussed how type-I seesaw mechanism suppressed by fine tuning of Yukawa couplings, or specific textures of associated fermion mass matrices, can form the basis of neutrino masses in TeV scale $W_R$ boson models. In this paper we review recent works in another class of theories where the added presence of fermion singlets manifesting as sterile neutrinos render the type-I seesaw contribution vanishing but extended seesaw dominant where the light neutrino mass formula is same as the classic inverse seesaw but all massive neutrinos are Majorana fermions. We also show domunance of linear seesaw, or double seesaw, or type-II seesaw in due to cancellation of type-I seesaw. Embeddings of this mechnism in supersymmetric as well as non-supersymmetric SO(10) with low or intermediate masses of $W_R$ or $Z_R$ bosons are discussed. We also discuss how this cancellation criteria has led to a new mechanism of type-II seesaw dominance which permits $U(1)_{B-L}$ breaking scale much smaller than the left-handed triplet mass. Out of a number of new observable predictions, the most visible ones are the dominant contribution to LFV decays and neutrinoless double beta decay mediated by light sterile neutrinos in the $W_L-W_L$ channel. These seesaw dominance mechanisms are applicable in the extensions of the SM and high, intermediate, or low scale left-right gauge theories with or without their SO(10) origin. Other recent works on the applications of this mechanism covering dark matter and leptogenesis are noted..
description: 66 pages pdfLatex, 9 figures; Review Artile on Neutrino Physics, Seesaw Mechanisms, and Beyond SM Physics Including GUTs
Amtliche Mitteilungen der Universität Dortmund Nr. 06/2002
Creators: name: (:Unkn) Unknown
Publisher: name: Universität Dortmund
Year: 2002
Subjects: subject: 080

description: Amtlicher Teil: Sechste Ordnung zur Änderung der Diplomprüfungsordnung für den Studiengang Maschinenbau an der Universität Dortmund vom 7. Mai 2002
description: Amtliche Mitteilungen der Universität Dortmund ; 6, 2002
Kids have a right to know : an exploratory study of the factors that impact on permanency planning for children in contact with the statutory child protection system in Victoria
Creators: name: Brydon, Kerry.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Your College Dorm and Dormmates: Fair Resource Sharing with Externalities
Creators: name: Gan, Jiarui
name: Li, Bo
name: Li, Yingkai
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: FOS: Computer and information sciences

description: We study a fair resource sharing problem, where a set of resources are to be shared among a group of agents. Each agent demands one resource and each resource can serve a limited number of agents. An agent cares about what resource they get as well as the externalities imposed by their mates, who share the same resource with them. Clearly, the strong notion of envy-freeness, where no agent envies another for their resource or mates, cannot always be achieved and we show that even deciding the existence of such a strongly envy-free assignment is an intractable problem. Hence, a more interesting question is whether (and in what situations) a relaxed notion of envy-freeness, the Pareto envy-freeness, can be achieved. Under this relaxed notion, an agent envies another only when they envy both the resource and the mates of the other agent. In particular, we are interested in a dorm assignment problem, where students are to be assigned to dorms with the same capacity and they have dichotomous preference over their dormmates. We show that when the capacity of each dorm is 2, a Pareto envy-free assignment always exists and we present a polynomial-time algorithm to compute such an assignment. Nevertheless, the result breaks immediately when the capacity increases to 3, in which case even Pareto envy-freeness cannot be guaranteed. In addition to the existential results, we also investigate the utility guarantees of (Pareto) envy-free assignments in our model.
description: accepted in JAIR 2023
New life : pregnancy, childbirth and early parenting in women affected by child sexual assault
Creators: name: Armstrong, Susan Jane.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Amtliche Mitteilungen der Universität Dortmund Nr. 08/2002
Creators: name: (:Unkn) Unknown
Publisher: name: Universität Dortmund
Year: 2002
Subjects: subject: 080

description: Amtlicher Teil: Erste Ordnung zur Änderung der Studienordnung für den Studiengang Englisch an der Universität Dortmund mit dem Abschluss "Erste Staatsprüfung für das Lehramt für die Sekundarstufe I" vom 5. Juli 2002
description: Amtliche Mitteilungen der Universität Dortmund ; 8, 2002
The Heisenberg algebra as near horizon symmetry of the black flower solutions of Chern-Simons-like theories of gravity
Creators: name: Setare, M. R.
name: Adami, H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we study the near horizon symmetry algebra of the non-extremal black hole solutions of the Chern-Simons-like theories of gravity, which are stationary but are not necessarily spherically symmetric. We define the extended off-shell ADT current which is an extension of the generalized ADT current. We use the extended off-shell ADT current to define quasi-local conserved charges such that they are conserved for Killing vectors and asymptotically Killing vectors which depend on dynamical fields of the considered theory. We apply this formalism to the Generalized Minimal Massive Gravity( GMMG) and obtain conserved charges of a spacetime which describes near horizon geometry of non-extremal black holes. Eventually, we find the algebra of conserved charges in Fourier modes. It is interesting that, similar to the Einstein gravity in the presence of negative cosmological constant, for the GMMG model also we obtain the Heisenberg algebra as the near horizon symmetry algebra of the black flower solutions. Also the vacuum state and all descendants of the vacuum have the same energy. Thus these zero energy excitations on the horizon appear as soft hairs on the black hole.
description: 19 pages, added discussion and references
Amtliche Mitteilungen der Universität Dortmund Nr. 12/2002
Creators: name: (:Unkn) Unknown
Publisher: name: Universität Dortmund
Year: 2002
Subjects: subject: 080

description: Amtlicher Teil: Diplomprüfungsordnung für den Studiengang Biotechnik an der Universität Dortmund vom 24.09.2002
description: Amtlicher Teil: Promotionsordnung der Universität Dortmund für den Fachbereich Erziehungswissenschaft und Soziologie vom 26.09.2002
description: Amtlicher Teil: Studienordnung für das Unterrichtsfach Psychologie an der Universität Dortmund mit dem Abschluss "Erste Staatsprüfung für das Lehramt für die Sekundarstufe II" vom 24.09.2002
description: Amtliche Mitteilungen der Universität Dortmund ; 12, 2002
The Effect Of Event Sponsorship On Consumer Purchase Intention: The Case Of Commercial Bank Of Ethiopia
Creators: name: k/mariam, Ytbarek
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: The main purpose of this study was to assess the effect of event sponsorship on purchase intention and to provide a better understanding of how event sponsorship is used at commercial bank of Ethiopia. The researcher employed questionnaire survey approach to see the attitude of the customers of commercial bank of Ethiopia and Interview was employed to collect data from the organization marketing department. The researcher took 384 sample respondents from four branches; the sampling method applied was convenience and purposive sampling. The data analysis was conducted through statistical techniques such as descriptive statistics, bivariate correlations and multiple linear regressions by using SPSS. The finding indicates that correlation coefficient of the study signifies that there is strong relationship between the independent variables of event sponsorship and dependent variables of purchase intentions. I think favorably of companies that organize events and I will inquire about CBE's product because it organizes an event have the highest positive correlation which means that customers give value for companies that organizes events. with regards to the objectives of using event sponsorship build corporate image, Create awareness about the company, strengthen the internal relations and achieving media coverage are very important. When it comes to selection of events, the company uses different criterions to select a specific event. Fulfill the stated objectives, target group, budget required, and type of event and media coverage are very important. Based on the findings, the bank is advised that Marketers should continue to use various types of event sponsorship due to their clear impact on attendees' perception of the sponsoring brand and their purchase intention and The company should develop its own methods to measure event's effectiveness to use the events effectively for future
Excitation functions of parameters extracted from three-source (net-)proton rapidity distributions in Au-Au and Pb-Pb collisions over an energy range from AGS to RHIC
Creators: name: Gao, Li-Na
name: Liu, Fu-Hu
name: Sun, Yan
name: Sun, Zhu
name: Lacey, Roy A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Experimental results of the rapidity spectra of protons and net-protons (protons minus antiprotons) emitted in gold-gold (Au-Au) and lead-lead (Pb-Pb) collisions, measured by a few collaborations at the alternating gradient synchrotron (AGS), super proton synchrotron (SPS), and relativistic heavy ion collider (RHIC), are described by a three-source distribution. The values of the distribution width $σ_C$ and contribution ratio (relative contribution) $k_C$ of the central rapidity region, and the distribution width $σ_F$ and rapidity shift $Δy$ of the forward/backward rapidity regions, are then obtained. The excitation function of $σ_C$ increases generally with increase of the center-of-mass energy per nucleon pair $\sqrt{s_{NN}}$. The excitation function of $σ_F$ shows a saturation at $\sqrt{s_{NN}}=8.8$ GeV. The excitation function of $k_C$ shows a minimum at $\sqrt{s_{NN}}=8.8$ GeV and a saturation at $\sqrt{s_{NN}}\approx 17$ GeV. The excitation function of $Δy$ increase monotonously with $\ln \sqrt{s_{NN}}$ in the considered energy range.
description: 19 pages, 8 figures, The European Physical Journal A, accepted
Supplementary from Multiscale modelling predicts plant stem bending behaviour in response to wind to inform lodging resistance
Creators: name: Gangwar, Tarun
name: Susko, Alexander Q.
name: Baranova, Svetlana
name: Guala, Michele
name: Smith, Kevin P.
name: Heuschele, D. Jo
Publisher: name: The Royal Society
Year: 2022
Subjects: subject: Biophysics
subject: 110601 Biomechanics
subject: FOS: Health sciences

description: Additional figures and mechanical tests that assist with explaining models
KIC 8462852 Faded Throughout the Kepler Mission
Creators: name: Montet, Benjamin T.
name: Simon, Joshua D.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: KIC 8462852 is a superficially ordinary main sequence F star for which Kepler detected an unusual series of brief dimming events. We obtain accurate relative photometry of KIC 8462852 from the Kepler full frame images, finding that the brightness of KIC 8462852 monotonically decreased over the four years it was observed by Kepler. Over the first ~1000 days, KIC 8462852 faded approximately linearly at a rate of 0.341 +/- 0.041%/yr, for a total decline of 0.9%. KIC 8462852 then dimmed much more rapidly in the next ~200 days, with its flux dropping by more than 2%. For the final ~200 days of Kepler photometry the magnitude remained approximately constant, although the data are also consistent with the decline rate measured for the first 2.7 yr. Of a sample of 193 nearby comparison stars and 355 stars with similar stellar parameters, none exhibit the rapid decline by 2% or the cumulative fading by 3% of KIC 8462852. Moreover, of these comparison stars, only one changes brightness as quickly as the 0.341%/yr measured for KIC 8462852 during the first three years of the Kepler mission. We examine whether the rapid decline could be caused by a cloud of transiting circumstellar material, finding while such a cloud could evade detection in sub-mm observations, the transit ingress and duration cannot be explained by a simple cloud model. Moreover, this model cannot account for the observed longer-term dimming. No known or proposed stellar phenomena can fully explain all aspects of the observed light curve.
description: 14 pages, 6 figures, 1 table. Accepted for publication in ApJL. The "Data Behind the Figure" associated with Figure 3 is also available at http://astro.uchicago.edu/~bmontet/kic8462852/reduced_lc.txt