cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
An unexpected topological censor
Creators: name: Kuhfittig, Peter K. F.
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Morris-Thorne wormholes with a cosmological constant Λhave been studied extensively, even allowing Λto be replaced by a space variable scalar. These wormholes cannot exist, however, if Λis both space and time dependent. Such a Λwill therefore act as a topological censor. While not likely to have a bearing on the present, possible cosmological consequences of inflation cannot be discounted.
description: 5 pages, 1 figure
Drift Tubes Trigger System of the CMS Experiment at LHC : Commissioning and Performances
Creators: name: Battilana, Carlo <1980>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2009
Subjects: FIS/01 Fisica sperimentale

description: In this thesis the performances of the CMS Drift Tubes Local Trigger System of the CMS detector are studied. CMS is one of the general purpose experiments that will operate at the Large Hadron Collider at CERN. Results from data collected during the Cosmic Run At Four Tesla (CRAFT) commissioning exercise, a globally coordinated run period where the full experiment was involved and configured to detect cosmic rays crossing the CMS cavern, are presented. These include analyses on the precision and accuracy of the trigger reconstruction mechanism and measurement of the trigger efficiency. The description of a method to perform system synchronization is also reported, together with a comparison of the outcomes of trigger electronics and its software emulator code.
Gas damping force noise on a macroscopic test body in an infinite gas reservoir
Creators: name: Cavalleri, A.
name: Ciani, G.
name: Dolesi, R.
name: Hueller, M.
name: Nicolodi, D.
name: Tombolato, D.
name: Vitale, S.
name: Wass, P. J.
name: Weber, W. J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: We present a simple analysis of the force noise associated with the mechanical damping of the motion of a test body surrounded by a large volume of rarefied gas. The calculation is performed considering the momentum imparted by inelastic collisions against the sides of a cubic test mass, and for other geometries for which the force noise could be an experimental limitation. In addition to arriving at an accurated estimate, by two alternative methods, we discuss the limits of the applicability of this analysis to realistic experimental configurations in which a test body is surrounded by residual gas inside an enclosure that is only slightly larger than the test body itself.
description: 8 pages. updated with correct translational damping coefficient for cylinder on axis. added cylinder orthogonal to symmetry axis, force and torque. slightly edited throughout
Young children’s comprehension of comparative adjectives: problems of experimental design and interpretation
Creators: name: Barty, Naomi
Publisher: name: University of British Columbia
Year: 2010

description: Previous investigations have shown that children between the ages of three and five years give consistently correct responses to requests for one of a pair of quantities which has more elements and incorrect responses to requests for the one containing less. On such a basis it has been hypothesized that the word more is properly understood before the word less and, at some point in the acquisition of these terms, less is understood to have the meaning of more. However, such a response bias is not demonstrable in all of the studies which have required children to deal with the terms more and less. As a consequence, the various experimental methodologies are examined for differences which may have accounted for the disparity of results, i.e., for the presence or absence of the response bias described. The present study investigates the performance of thirty children between the ages of 2; 6 and 4;6 on comparisons which involve the terms more/less and longer/shorter. Two types of comparison were made: (1) the choice of one stimulus in response to the words more and less and longer and shorter, and (2) the choice of one of the terms in the comparison of one stimulus with a given standard. Very few of the children tested demonstrated a response bias in favour of the positive terms, more and longer, and their scores on the comprehension of more and less were found to be highly dependent on the design of the task. The 'Semantic Feature Hypothesis' proposed by E. Clark (1973) suggests that the confusion of polar opposites (i.e., opposing comparative adjectives along the same dimension) is part of a more general principle of semantic development and that all children go through a stage in which the same meaning is attributed to more and less, longer and shorter. The present findings, on the other hand, reveal that almost all the children tested give either consistently correct responses to both terms or inconsistent responses, that children rarely respond consistently incorrectly to either member of the pairs, and that when they do, their performance on a production task indicates either comprehension of both words or non-comprehension of both, but does not support the suggestion that the two words are treated as synonyms. The inadequacy of the tasks used as a measure of comprehension of comparative adjectives constitutes a major difficulty for the 'Semantic Feature Hypothesis', insofar as its formulation was dependent on the assumption that the performance of children in such situations was a valid indication of their understanding of the words in question. The results of the present investigation suggest that such a claim is untenable and that careful control of experimental design is particularly important in the adequate assessment of cognitive-linguistic capabilities.
Uremic Neuropathy: Epiemiological Study in Hemodialysis Patients
Neuropatia uremica: uno studio epidemiologico nei pazienti emodializzati
Creators: name: Ricci, Davide <1977>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: MED/14 Nefrologia

description: Background/Aims. Uremic Neuropathy (UN) highly limits the individual self-sufficiency causing near-continuous pain. An estimation of the actual UN prevalence among hemodialysis patients was the aim of the present work.
Methods. We studied 225 prevalent dialysis patients from two Italian Centres. The Michigan Neuropathy Score Instrument (MNSI), already validated in diabetic neuropathy, was used for the diagnosis of UN. It consisted of a questionnaire (MNSI_Q) and a physical-clinical evaluation (MNSI_P). Patients without any disease possibly inducing secondary neuropathy and with MNSI score  3 have been diagnosed as affected by UN.
Electroneurographic (ENG) lower limbs examination was performed in these patients to compare sensory conduction velocities (SCV) and sensory nerve action potentials (SNAP) with the MNSI results.
Results. Thirtyseven patients (16.4%) were identified as being affected by UN, while 9 (4%) presented a score <3 in spite of neuropathic symptoms. In the 37 UN patients a significant correlation  was found between MNSI_P and SCV (r2 = 0.1959; p<0.034) as well as SNAP (r2 = 0.3454; p=0.027) both measured by ENG.
Conclusions. UN is an underestimated disease among the dialysis population even though it represents a huge problem in terms of pain and quality of life.
MNSI could represent a valid and simple clinical-instrumental screening test for the early diagnosis of UN in view of an early therapeutic approach.
description: Principale scopo dello studio è la stima della prevalenza della neuropatia uremica nel paziente emodializzato. Sono stati studiati 225 pazienti in emodialisi cronica trisettimanale. Il Michigan Neuropathy Score Instrument (MNSI) è stato utilizzato per la diagnosi di neuropatia. I pazienti con Michigan score > di 3, in assenza di altre patologie potenzialmente causa di neuropatia, hanno ricevuto diagnosi di neuropatia uremica. Trentasette pazienti (16.4%) sono stati clinicamente identificati affetti da neuropatia uremica, mentre 9 (4%) pur lamentando sintomi avevano un Michigan score < di 3. I pazienti con diagnosi di neuropatia uremica sono stati sottoposti a elettroneurografia ed è stata stabilita una correlazione statisticamente significativa fra il Michigan score e la “sensory conduction velocity (SCV)” (r2 = 0.1959; p < 0.034) cosi come fra Michigan score e “sensory nerve action potential (SNAP)” (r2 = 0.3454; p < 0.027). Inoltre lo studio in regressione logistica ha mostrato una correlazione fra neuropatia ed età del paziente (p > 0.001) e sesso femminile (p < 0.036); nessuna correlazione invece fra neuropatia e la tecnica di dialisi utilizzata.
La inclusión de declaraciones de derechos y principios en los Estatutos de Italia y España
The inclusion of declarations of rights and principles in the Statutes of Italy and Spain
L'inclusione di dichiarazioni di diritti e principi negli Statuti d'Italia e Spagna
Creators: name: Perez Miras, Antonio <1982>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: IUS/08 Diritto costituzionale

description: La ricerca riguarda l’inclusione di dichiarazioni di diritti e principi introdotte negli Statuti di autonomia delle Regioni italiane e delle Comunità Autonome spagnole riformati negli ultimi anni. La tesi consta, oltre che nell’introduzione dei concetti preliminari, di due parti per ognuno dei Paesi nelle quali si esaminano i sistemi regionali e concretamente queste carte di diritti e principi. La terza parte raccoglie un’analisi comparativa di ambedue gli Stati. Il problema dell’efficacia di questi diritti e principi rappresenta la chiave fondamentale. In questo senso, la Giurisprudenza costituzionale risulta essere basilare per lo studio delle differenti risposte alle novità dei diversi elenchi di diritti e principi a livello regionale. Mentre la Corte Costituzionale italiana ha negato la loro efficacia giuridica, anche come norme programmatiche assimilabili a quelle costituzionali, il Tribunale Costituzionale spagnolo ha qualificato un nuovo tipo di diritto, i c. d. diritti statutari, che non sono diritti pubblici soggettivi ma mandati ai poteri pubblici autonomici, specialmente al legislatore autonomico. Lo studio si completa con la problematica dell’uguaglianza e la garanzia dei diritti e i principi in questi Stati composti.
description: This research project deals with the inclusion of declarations of rights and principles in the reformed Statutes of autonomy of the Regions of Italy as well as in the recently amended Statutes of the Spanish Autonomous Communities. This dissertation is divided in several sections. In the introduction the preliminary concepts related to the research topic are introduced. This section is followed by two sections, one per country of study (Italy and Spain), and which follow a similar structure in which the regional systems and, concretely, these charters of rights and principles are examined. The last section consists of a comparative analysis of both States. The issue of the effectiveness of these rights and principles is the key. In this sense, Constitutional Jurisprudence is crucial for the study of the different responses to the lists of rights and principles at regional level. While the Italian Constitutional Court has denied their legal effectiveness, even as programmatic provisions similar to those of constitutional nature, the Spanish Constitutional Court has acknowledged a new type of right, the statutory rights, which are not public subjective rights but rather limitations to the autonomic public authorities, particularly to autonomic legislator. This research project addresses also the issue of equality and guarantee of rights and principles in these complex States.
Usage of grid support inverter on long distribution grid lines
Creators: name: Osadčuks, V.
name: Pecka, A.
name: Galiņš, A.
Publisher: name: Agronomy Research
Year: 2019
Subjects: distribution grid
load
voltage quality
inverter efficiency
article

description: The paper focuses on the evaluation of new possibilities to improve voltage quality in remote branches of 230 V grid. Decrease of power electronic costs may potentially make batterybacked inverters a viable alternative to the costly reconstruction of 230 V distribution grid connections, which are of poor quality or cannot match changing load requirements, extending power transmission lines or adding boost transformers. The object of the current study is a household-type consumer with 20 A single-phase connection to distribution line with a distance of 2 km to a 20 kV transformer station. The calculated resistance of the power line is 2.8 ohms. The load profile was captured during 5 days in summer and 10 days in winter and was used to calculate the capacity of the grid support equipment. Measurements indicated, that in the worst case 2% of time the voltage was below 10% of nominal and 8% of time – below 5% of it. This is outside of the regulatory limits of EU and national regulations. The experimental setup for a voltage quality improvement system was based on an OutBack Power Radian series grid inverter with 7 kW output power. Battery consisting of 12 V 120 Ah VRLA accumulators wired in 48 V system was used. The inverter was configured to work in grid support mode using battery power when the consumer’s active load increased above 1.2 kW. Results showed improvement in voltage quality over the full consumer load range. The total efficiency of the grid support system was 89%. The use of DC bus and batteries allows easy incorporation of renewable energy sources, thus giving the opportunity to scale power and battery capacity of the system. An Additional benefit of using a battery-backed inverter in grid support mode is that consumer can temporarily use more power that is allowed by grid due to its capacity constraints.
Mutation classes of \tilde{A}_n-quivers and derived equivalence classification of cluster tilted algebras of type \tilde{A}_n
Creators: name: Bastian, Janine
Publisher: name: arXiv
Year: 2009
Subjects: subject: Representation Theory (math.RT)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 16G20, 16E35, 18E30

description: We give an explicit description of the mutation classes of quivers of type \tilde{A}_n. Furthermore, we provide a complete classification of cluster tilted algebras of type \tilde{A}_n up to derived equivalence. We show that the bounded derived category of such an algebra depends on four combinatorial parameters of the corresponding quiver.
description: 24 pages. v2: Correction of Definition 3.4. References added. Minor changes. v3: Revision of Definition 3.4 and Definition 3.9 (now 3.8). Proof of Lemma 3.7 (now 3.6) considerably simplified. Minor editorial changes. v4: Some examples omitted. Some proofs shortened. Minor editorial changes. v5: Final version. Minor editorial changes. arXiv admin note: text overlap with arXiv:math/0607348 by other authors
Exact Solutions of Bianchi Types $I$ and $V$ Spacetimes in $f(R)$ Theory of Gravity
Creators: name: Sharif, M.
name: Shamir, M. Farasat
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, the crucial phenomenon of the expansion of the universe has been discussed. For this purpose, we study the vacuum solutions of Bianchi types $I$ and $V$ spacetimes in the framework of $f(R)$ gravity. In particular, we find two exact solutions in each case by using the variation law of Hubble parameter. These solutions correspond to two models of the universe. The first solution gives a singular model while the second solution provides a non-singular model. The physical behavior of these models is discussed. Moreover, the function of the Ricci scalar is evaluated for both the models in each case.
description: 16 pages, accepted for publication in Class. Quantum Grav
Additional file 7 of A positive feed-forward loop between LncRNA-URRCC and EGFL7/P-AKT/FOXO3 signaling promotes proliferation and metastasis of clear cell renal cell carcinoma
Creators: name: Zhai, Wei
name: Zhu, Rujian
name: Ma, Junjie
name: Gong, Dongkui
name: Zhang, Haimin
name: Zhang, Jin
name: Chen, Yonghui
name: Huang, Yiran
name: Zheng, Junhua
name: Xue, Wei
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Neuroscience
subject: Physiology
subject: Developmental Biology
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences

description: Figure S2. A and B: qRT-PCR assays for the URRCC mRNA level in 786-O and OSRC-2 cells after transfection of sh-control, sh-URRCC-1, and sh-URRCC-2. C: MTT assays after transfection of sh-URRCC compared with sh-control in 786-O cells. D: Representative images and the numbers of invasive cells per high-power field reduced by the transfection of sh-URRCC in 786-O compared to sh-control groups. (PDF 96 kb)
Different addictive drug exposure induces selective alterations of the Endogenous Opioid System : modulation of transcription and epigenetic mechanisms
Creators: name: Caputi, Francesca Felicia <1981>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: BIO/14 Farmacologia

description: Drug addiction manifests clinically as compulsive drug seeking, and cravings that can persist and recur even after extended periods of abstinence.
The fundamental principle that unites addictive drugs is that each one enhances synaptic DA by means that dissociate it from normal behavioral control, so that they act to reinforce their own acquisition. Our attention has focused on the study of phenomena associated with the consumption of alcohol and heroin.
Alcohol has long been considered an unspecific pharmacological agent, recent molecular pharmacology studies have shown that acts on different primary targets. 
Through gene expression studies conducted recently it has been shown that the classical opioid receptors are differently involved in the consumption of ethanol  and, furthermore, the system nociceptin / NOP,  included in the family of endogenous opioid system, and both appear able to play a key role in the initiation of alcohol use in rodents. What emerges is that manipulation of the opioid system, nociceptin, may be useful in the treatment of addictions and there are several evidences that support the use of this strategy. 
The linkage between gene expression alterations and epigenetic modulation in PDYN and PNOC promoters following alcohol treatment confirm the possible chromatin remodeling mechanism already proposed for alcoholism.
In the second part of present study, we also investigated alterations in signaling molecules directly associated with MAPK pathway in a unique collection of postmortem brains from heroin abusers. 
The interest was focused on understanding the effects that prolonged exposure of heroin can cause in an individual, over the entire MAPK cascade and consequently on the transcription factor ELK1, which is regulated by this pathway.
We have shown that the activation of ERK1/2 resulting in Elk-1 phosphorylation in striatal neurons supporting the hypothesis that prolonged exposure to substance abuse causes a dysregulation of MAPK pathway.
Identidade Virtual: escritas geracionais e a rede twitter
Creators: name: Bandeira, Denise
name: Stromberg, Karla Bocchi
Publisher: name: Labfront/UEMG
Year: 2023

description: Este artigo apresenta aspectos da criação da identidade virtual Saberlyyy e do trabalho interativo desenvolvido a partir de cerca de 100 mil tweets publicados entre os anos de 2011 até 2021, da conta pessoal da artista e pesquisadora Karla Stromberg. O trabalho integra seu projeto de doutoramento realizado entre 2019 e 2022 no Programa de Media Artes da Universidade de Beira Interior (Portugal). Neste recorte, optou-se por comentar questões da geração Z (MCCRINDLE, 2014), a criação de identidades virtuais autoficcionais (WHITE et al., 2017) e humorísticas como método de coping (LAZARUS; FOLKMAN, 1984) e o uso da internet para capturar rastros ou marcas na composição de um diário virtual. O chatbot composto pelos tweets contempla um processo interativo e evoca em perguntas e respostas, o uso das redes pela geração, padrões de humor e de compartilhamento da vida privada tornada pública, valendo-se de um banco de dados e da própria rotina de acesso à rede social.
Polynomial functions over bounded distributive lattices
Creators: name: Couceiro, Miguel
name: Marichal, Jean-Luc
Publisher: name: arXiv
Year: 2009
Subjects: subject: Rings and Algebras (math.RA)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 06A07, 06D05 (Primary) 28B15, 39B72 (Secondary)

description: Let L be a bounded distributive lattice. We give several characterizations of those L^n --> L mappings that are polynomial functions, i.e., functions which can be obtained from projections and constant functions using binary joins and meets. Moreover, we discuss the disjunctive normal form representations of these polynomial functions.
Charge and orbital ordering in Fe and Mn perovskite oxides far from half- doping by resonant x- ray scattering
Creators: name: Herrero-Martin, Javier
name: García, Joaquín
name: Javier, Blasco
name: Mazzoli, Claudio
name: Subías, G.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The emergence of superlattice periodicities at metal to insulator transitions in hole doped perovskite oxides responds to a rearrangement of the local atomic structure, and electron and spin density distribution. Originally, the ionic model based on a checkerboard- type atomic distribution served to describe the low temperature charge and orbital ordered (COO) phases arising in half- doped manganites. In the last years, the exploitation of resonant x- ray scattering (RXS) capabilities has shown the need to revisit these concepts and improve the picture. Yet, we have realised that COO is a more common phenomenon than expected that can be observed in a wide range of doping levels. Here we compare the experimental data recently collected by RXS on La_0.4Sr_1.6MnO_4 (x=0.60) and La(Pr)_1/3Sr_2/3FeO_3 (x=0.67). The first shows a COO phase similar to that found in the x=0.5 sample but angular peak positions vs. T denotes the incommensurability of superlattice reflections. Meanwhile, the analysis of the commensurate CO phase in the studied ferrite underlines the role of the structural changes also involving La(Sr) and O atoms.
Additional file 4 of What influences the implementation of kangaroo mother care? An umbrella review
Creators: name: Cai, Qian
name: Chen, Dan-Qi
name: Wang, Hua
name: Zhang, Yue
name: Yang, Rui
name: Xu, Wen-Li
name: Xu, Xin-Fen
Publisher: name: figshare
Year: 2022
Subjects: Medicine
Science Policy

description: Additional file 4. Result of the quality appraisal of included studies.
Muon spin rotation/relaxation measurements of the non-centrosymmetric superconductor Mg10Ir19B16
Creators: name: Aczel, A. A.
name: Williams, T. J.
name: Goko, T.
name: Carlo, J. P.
name: Yu, W.
name: Uemura, Y. J.
name: Klimczuk, T.
name: Thompson, J. D.
name: Cava, R. J.
name: Luke, G. M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have searched for time-reversal symmetry breaking fields in the non-centrosymmetric superconductor Mg$_{10}$Ir$_{19}$B$_{16}$ via muon spin relaxation in zero applied field, and we measured the temperature dependence of the superfluid density by muon spin rotation in transverse field to investigate the superconducting pairing symmetry in two polycrystalline samples of signficantly different purities. In the high purity sample, we detected no time-reversal symmetry breaking fields greater than 0.05 G. The superfluid density was also found to be exponentially-flat as T$\to $0, and so can be fit to a single-gap BCS model. In contrast, the lower purity sample showed an increase in the zero-field $μ$SR relaxation rate below T$_c$ corresponding to a characteristic field strength of 0.6 G. While the temperature-dependence of the superfluid density was also found to be consistent with a single-gap BCS model, the magnitude as T$\to $0 was found to be much lower for a given applied field than in the case of the high purity sample. These findings suggest that the dominant pairing symmetry in high quality Mg$_{10}$Ir$_{19}$B$_{16}$ samples corresponds to the spin-singlet channel, while sample quality drastically affects the superconducting properties of this system.
description: 6 pages, 5 figures, revised version resubmitted to PRB
Additional file 1 of Tranexamic versus aminocaproic acids in patients with total hip arthroplasty: a retrospective study
Creators: name: Xie, Hui
name: Yang, Yu-Shen
name: Tian, Si-miao
name: Wang, Ben-jie
name: Fu, Wei-min
name: Cheng, Liang-liang
name: Jiang, Nan-nan
name: Gu, Guishan
name: Zhao, De-wei
Publisher: name: figshare
Year: 2022
Subjects: Medicine
Cell Biology
Pharmacology
Biotechnology
Science Policy
Hematology

description: Additional file 1. Supplemental tables.
Insights in the maturation of pathogenic bacteria vaccine candidates using mass spectrometry based approaches
Creators: name: Donnarumma, Danilo <1984>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: BIO/11 Biologia molecolare

description: The study of the maturation process that occurs to a protein is of pivotal importance for the understanding of its function. This is true also in the vaccine field but in this case is also important to evaluate if inappropriate protein conformation and maturation play roles in the impairment of the functional immunogenicity of protein vaccines. 
Mass spectrometry (MS) is the method of choice for the study of the maturation process since each modification that occurs during the maturation will lead to a change in the mass of the entire protein.
Therefore the aim of my thesis is the development of mass spectrometry-based approaches to study the maturation of proteins and the application of these methods to proteic vaccine candidates. 
The thesis is divided in two main parts. In the first part, I focused my attention on the study of the maturation of different vaccine candidates using native mass spectrometry. The analyses in this case have been performed using recombinant proteins produced in E. coli. In the second part I applied different MS strategies for the identification of unknown PTMs on pathogenic bacteria surface proteins since modified surface proteins are now considered for vaccine candidate selection.
title: Метод аппроксимационной матрицы формирования весов объектов в многокритериальных задачах выбора
title: Approximation Matrix Method for Weights Formationof Objects in Multicriteria Problems
Creators: name: Корнеенко, Виктор Павлович
Publisher: name: Издательский центр СурГУ
Year: 2021

description: В статье представлен оптимизационный метод формирования количественных весов объектов (важности критериев, приоритетов альтернатив) по исходной экспертной матрице суждений в многокритериальных задачах выбора. Поскольку матрицу парных сравнений можно рассматривать как некоторое возмущение мультипликативной матрицы, то предлагаемый метод базируется на аппроксимации исходной матрицы парных сравнений мультипликативной матрицей по матричному критерию минимума расстояний между матрицами. Проведен сравнительный анализ эффективности нового метода с методом аналитической иерархии Т. Саати по критерию близости к исходной матрице суждений мультипликативных матриц, элементы которых восстановлены по найденным нормированным элементам весов объектов. На примере решения задачи формирования весов важности критериев оценена точность приближенного решения метода аналитической иерархии. Данный метод математически обоснован и в связи с простотой вычисления может быть рекомендован вместо метода анализа иерархий Т. Саати при решении прикладных многокритериальных задач.
description: The article presents an optimization method for the formation of quantitative weights of objects (importance of criteria, priorities of alternatives) according to the original expert judgment matrix in multicriteria selection problems. Since the pairwise comparison matrix can be considered as some perturbation of the multiplicative matrix, the proposed method is based on the approximation of the original pairwise comparison matrix by a multiplicative matrix according to the matrix criterion of minimum distances between matrices. A comparative analysis of the effectiveness of the new method with the well-known method of the analytical hierarchy of T. Saaty is carried out according to the criterion of closeness to the original judgment matrix of multiplicative matrices, the elements of which are reconstructed from the found normalized elements of the weights of objects. On the example of solving the problem for weights forming of the importance of criteria, the accuracy of the approximate solution of the analytical hierarchy method is estimated. This method is mathematically substantiated and, due to its computational simplicity, can be recommended instead of T. Saaty's hierarchy analysis method in solving applied multicriteria problems.
Distribution of values of $L$-functions at the edge of the critical strip
Creators: name: Lamzouri, Youness
Publisher: name: arXiv
Year: 2008
Subjects: subject: Number Theory (math.NT)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 11M06, 11N37

description: We prove several results on the distribution of values of $L$-functions at the edge of the critical strip, by constructing and studying a large class of random Euler products. Among new applications, we study families of symmetric power $L$-functions of holomorphic cusp forms in the level aspect (assuming the automorphy of these $L$-functions) at $s=1$, functions in the Selberg class (in the height aspect), and quadratic twists of a fixed $GL(m)/{\Bbb Q}$-automorphic cusp form at $s=1$.
description: 30 pages
Additional file 6: of CircDLST promotes the tumorigenesis and metastasis of gastric cancer by sponging miR-502-5p and activating the NRAS/MEK1/ERK1/2 signaling
Creators: name: Zhang, Jing
name: Hou, Lidan
name: Liang, Rui
name: Chen, Xiaoyu
name: Zhang, Rui
name: Chen, Wei
name: Zhu, Jinshui
Publisher: name: figshare
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Marine Biology
subject: Cancer

description: Figure S5. TCGA analysis of the expression levels of miR-193b-5p, miR-542-3p, miR-362-5p and miR-203a-5p in paired and unpaired GC tissues. (PDF 229 kb)
Relaxation times for Hamiltonian systems
Creators: name: Maiocchi, A. M.
name: Carati, A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 37A60, 82C03

description: Usually, the relaxation times of a gas are estimated in the frame of the Boltzmann equation. In this paper, instead, we deal with the relaxation problem in the frame of the dynamical theory of Hamiltonian systems, in which the definition itself of a relaxation time is an open question. We introduce a lower bound for the relaxation time, and give a general theorem for estimating it. Then we give an application to a concrete model of an interacting gas, in which the lower bound turns out to be of the order of magnitude of the relaxation times observed in dilute gases.
description: 26 pages
Additional file 7: of CircDLST promotes the tumorigenesis and metastasis of gastric cancer by sponging miR-502-5p and activating the NRAS/MEK1/ERK1/2 signaling
Creators: name: Zhang, Jing
name: Hou, Lidan
name: Liang, Rui
name: Chen, Xiaoyu
name: Zhang, Rui
name: Chen, Wei
name: Zhu, Jinshui
Publisher: name: figshare
Year: 2019
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer

description: Figure S6. TCGA analysis of the association of high or low miR-502-5p expression with the overall survival and tumor recurrence of GC patients. (PDF 343 kb)
Uromys
Creators: name: Cramb, Jonathan
name: Hocknull, Scott A.
name: Price, Gilbert J.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Uromys

description: Palaeoecology of Uromys
 Living species of Uromys are semiarboreal omnivores (Breed & Ford, 2007). The ability to access food resources in the canopy (e.g., fruits, before they fall to the forest floor) has been suggested as a competitive advantage for species of Uromys (Rader & Krockenberger, 2006); this probably played a role in resource partitioning in the species-rich Mount Etna Middle Pleistocene rainforest. The larger size of most species (U. hadrourus and U. porculus being exceptions) allows them to utilize food resources that are inaccessible to smaller rodents. For example, large species of Uromys in north Queensland are known to gnaw through the hard, thick shells of coconuts (Watts & Aslin, 1981) and are also infamous for opening metal traps (Elliot traps) to steal bait or prey upon smaller mammals (Laurance et al., 1993; Eric Vanderduys, pers. comm. January 2020). Furthermore, there is evidence that smaller murines actively avoid large species of Uromys (Leung, 2008) suggesting that an “ecology of fear” (Brown et al., 1999) may have a role in structuring small mammal assemblages, at least on a local scale. Uromys aplini is the largest murine in the Mount Etna deposits, and may have behaved much like its extant relatives, robbing large seeds, consuming fruits and insects, and generally terrorizing the smaller vertebrates.
description: Published as part of Cramb, Jonathan, Hocknull, Scott A. & Price, Gilbert J., 2020, Fossil Uromys (Rodentia: Murinae) from Central Queensland, with a Description of a New Middle Pleistocene Species, pp. 175-191 in Records of the Australian Museum (Rec. Aust. Mus.) (Rec. Aust. Mus.) 72 (5) on page 188, DOI: 10.3853/j.2201-4349.72.2020.1731, http://zenodo.org/record/7946015
title: Seguimiento mediante TC de sarcoidosis torácica
Creators: name: Gamo Jiménez, Tamara
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Diagnostic procedure
subject: CT-High Resolution
subject: CT
subject: Thorax
subject: Lung
subject: Lymph nodes

description: Objetivos
Material y método
Resultados
Conclusiones
Bibliografía
description: Objetivos:
La sarcoidosis es una enfermedad de etiología desconocida caracterizada por la presencia de granulomas no caseificantes.
Presenta afectación pulmonar y del sistema linfático en más del 90 % de los pacientes.
El diagnóstico de sarcoidosis se...
Assumptions of the primordial spectrum and cosmological parameter estimation
Creators: name: Shafieloo, Arman
name: Souradeep, Tarun
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The observables of the perturbed universe, CMB anisotropy and large structures, depend on a set of cosmological parameters, as well as, the assumed nature of primordial perturbations. In particular, the shape of the primordial power spectrum (PPS) is, at best, a well motivated assumption. It is known that the assumed functional form of the PPS in cosmological parameter estimation can affect the best fit parameters and their relative confidence limits. In this paper, we demonstrate that a specific assumed form actually drives the best fit parameters into distinct basins of likelihood in the space of cosmological parameters where the likelihood resists improvement via modifications to the PPS. The regions where considerably better likelihoods are obtained allowing free form PPS lie outside these basins. In the absence of a preferred model of inflation, this raises a concern that current cosmological parameters estimates are strongly prejudiced by the assumed form of PPS. Our results strongly motivate approaches toward simultaneous estimation of the cosmological parameters and the shape of the primordial spectrum from upcoming cosmological data. It is equally important for theorists to keep an open mind towards early universe scenarios that produce features in the PPS.
description: 11 pages, 2 figures, discussions extended, main results unchanged, matches published version
Monte Carlo Simulations of Novel Scintillator Detectors and
Dosimetry Calculations
Creators: name: Lo Meo, Sergio <1970>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2009
Subjects: FIS/07 Fisica applicata (a beni culturali, ambientali, biologia e medicina)

description: Monte Carlo (MC) simulation techniques are becoming very common in the Medical
Physicists community. MC can be used for modeling Single Photon Emission Computed
Tomography (SPECT) and for dosimetry calculations. 188Re, is a promising candidate for
radiotherapeutic production and understanding the mechanisms of the radioresponse of tumor
cells "in vitro" is of crucial importance as a first step before "in vivo" studies. The
dosimetry of 188Re, used to target different lines of cancer cells, has been evaluated by the
MC code GEANT4. The simulations estimate the average energy deposition/per event in the
biological samples. The development of prototypes for medical imaging, based on LaBr3:Ce
scintillation crystals coupled with a position sensitive photomultiplier, have been studied using
GEANT4 simulations. Having tested, in the simulation, surface treatments different from
the one applied to the crystal used in our experimental measurements, we found out that the
Energy Resolution (ER) and the Spatial Resolution (SR) could be improved, in principle, by
machining in a different way the lateral surfaces of the crystal. We have then studied a system
able to acquire both echographic and scintigraphic images to let the medical operator obtain
the complete anatomic and functional information for tumor diagnosis. The scintigraphic
part of the detector is simulated by GEANT4 and first attempts to reconstruct tomographic
images have been made using as method of reconstruction a back-projection standard algorithm. The proposed camera is based on slant collimators and LaBr3:Ce crystals. Within
the Field of View (FOV) of the camera, it possible to distinguish point sources located in air
at a distance of about 2 cm from each other. In particular conditions of uptake, tumor depth
and dimension, the preliminary results show that the Signal to Noise Ratio (SNR) values
obtained are higher than the standard detection limit.
title: Физическое моделирование тюльпанообразного пламени при горении газов в цилиндрической вертикальной трубе
title: Tulip Flame Physical Modeling During Gaseous Combustion in a Cylindrical Vertical Pipe
Creators: name: Алексеев, Максим Михайлович
name: Семенов, Олег Юрьевич
Publisher: name: Издательский центр СурГУ
Year: 2021

description: В статье обсуждаются результаты экспериментальных исследований колебательного распространения пропано-воздушного пламени в длинной вертикальной трубе, закрытой с одного края. Предложены методы физического моделирования тюльпанообразного пламени в цилиндрической трубе, связанные с откликом фронта пламени на внешние воздействия и критические условия его распространения. Дано объяснение физических механизмов, управляющих формированием тюльпанообразной воронки пламени с продольными и поперечными гранями, колебаниями газа, неустойчивостью горения и вихреобразованием в пламени.
description: The article discusses the results of experimental studies of the vibrational propagation of a propane-air flame in a long vertical pipe that is closed at one end. Methods for physical modeling of a tulip-shaped flame in a cylindrical pipe are proposed. These methods are associated with the response of the flame front to external influences and critical conditions for its propagation. An explanation of the physical mechanisms governing the formation of a tulip flame with longitudinal and transverse edges, gas oscillations, combustion instability, and vortex formation in the flame is given.
Resonant x-ray scattering in 3d-transition-metal oxides: Anisotropy and charge orderings
Creators: name: Subías, G.
name: García, Joaquín
name: Javier, Blasco
name: Herrero-Martin, Javier
name: Sanchez, María Concepción
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The structural, magnetic and electronic properties of transition metal oxides reflect in atomic charge, spin and orbital degrees of freedom. Resonant x-ray scattering (RXS) allows us to perform an accurate investigation of all these electronic degrees. RXS combines high-Q resolution x-ray diffraction with the properties of the resonance providing information similar to that obtained by atomic spectroscopy (element selectivity and a large enhancement of scattering amplitude for this particular element and sensitivity to the symmetry of the electronic levels through the multipole electric transitions). Since electronic states are coupled to the local symmetry, RXS reveals the occurrence of symmetry breaking effects such as lattice distortions, onset of electronic orbital ordering or ordering of electronic charge distributions. We shall discuss the strength of RXS at the K absorption edge of 3d transition-metal oxides by describing various applications in the observation of local anisotropy and charge disproportionation. Examples of these resonant effects are (I) charge ordering transitions in manganites, Fe3O4 and ferrites and (II) forbidden reflections and anisotropy in Mn3+ perovskites, spinel ferrites and cobalt oxides. In all the studied cases, the electronic (charge and/or anisotropy) orderings are determined by the structural distortions.
description: accepted in J. Phys. : Conf. Series
Accurate evolutions of unequal-mass neutron-star binaries: properties of the torus and short GRB engines
Creators: name: Rezzolla, Luciano
name: Baiotti, Luca
name: Giacomazzo, Bruno
name: Link, David
name: Font, Jose A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present new results from accurate and fully general-relativistic simulations of the coalescence of unmagnetized binary neutron stars with various mass ratios. The evolution of the stars is followed through the inspiral phase, the merger and prompt collapse to a black hole, up until the appearance of a thick accretion disk, which is studied as it enters and remains in a regime of quasi-steady accretion. Although a simple ideal-fluid equation of state with Γ=2 is used, this work presents a systematic study within a fully general relativistic framework of the properties of the resulting black-hole--torus system produced by the merger of unequal-mass binaries. More specifically, we show that: (1) The mass of the torus increases considerably with the mass asymmetry and equal-mass binaries do not produce significant tori if they have a total baryonic mass M_tot >~ 3.7 M_sun; (2) Tori with masses M_tor ~ 0.2 M_sun are measured for binaries with M_tot ~ 3.4 M_sun and mass ratios q ~ 0.75-0.85; (3) The mass of the torus can be estimated by the simple expression M_tor(q, M_tot) = [c_1 (1-q) + c_2](M_max-M_tot), involving the maximum mass for the binaries and coefficients constrained from the simulations, and suggesting that the tori can have masses as large as M_tor ~ 0.35 M_sun for M_tot ~ 2.8 M_sun and q ~ 0.75-0.85; (4) Using a novel technique to analyze the evolution of the tori we find no evidence for the onset of non-axisymmetric instabilities and that very little, if any, of their mass is unbound; (5) Finally, for all the binaries considered we compute the complete gravitational waveforms and the recoils imparted to the black holes, discussing the prospects of detection of these sources for a number of present and future detectors.
description: 35 pages; small changes to match the published version
Strong semiclassical gravity in the universe and the laboratory
Creators: name: Orlandi, Alessio <1983>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: FIS/02 Fisica teorica, modelli e metodi matematici

description: Three published papers are resumed in this thesis. Different aspects of the semiclassical theory of gravity are discussed. In chapter 1 we find a new perturbative (yet analytical) solution to the unsolved problem of the metric junction between two Friedmann-Robertson-Walker using Israel's formalism. The case of an expanding radiation core inside an expanding or collapsing dust exterior is treated.
This model can be useful in the "landscape" cosmology in string theory or for treating new gravastar configurations.
In chapter 2 we investigate the possible use of the Kodama vector field as a substitute for the Killing vector field. In particular we find the response function of an Unruh detector following an (accelerated) Kodama trajectory. The detector has finite extension and backreaction is considered.
In chapter 3 we study the possible creation of microscopic black holes at LHC in the brane world model. It is found that the black hole tidal charge has a fundamental role in preventing the formation of the horizon.
A Multilevel Model with Time Series Components for the Analysis of Tribal Art Prices
Creators: name: Modugno, Lucia <1983>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: SECS-S/01 Statistica

description: In the present work we perform an econometric analysis of the Tribal art market. To this aim, we use a unique and original database that includes information on Tribal art market auctions worldwide from 1998 to 2011.  In Literature, art prices are modelled through the hedonic regression model, a classic fixed-effect model.
The main drawback of the hedonic approach is the large number of parameters, since, in general, art data include many categorical variables. In this work, we propose a multilevel
model for the analysis of Tribal art prices that takes into account the influence of time on artwork prices. In fact, it is natural to assume that time exerts an influence over the price dynamics in various ways. Nevertheless, since the set of
objects change at every auction date, we do not have repeated measurements
of the same items over time. Hence, the dataset does not constitute a proper
panel; rather, it has a two-level
structure in that items, level-1 units, are grouped in time points, level-2
units. The main theoretical contribution is the extension of classical
multilevel models to cope with the case described above. In particular,
we introduce a model with time dependent random effects at the second
level. We propose a novel specification of the model, derive the maximum likelihood
estimators and implement them through the E-M algorithm. We test the finite sample properties of the estimators and the validity of the own-written R-code by means of a simulation study. Finally, we show that the new model improves considerably the fit of the Tribal art data with respect to both the hedonic regression model and the classic multilevel model.