cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Origin of Jahn-Teller distortion and orbital-order in LaMnO3
Creators: name: Pavarini, Eva
name: Koch, Erik
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The origin of the cooperative Jahn-Teller distortion and orbital-order in LaMnO3 is central to the physics of the manganites. The question is complicated by the simultaneous presence of tetragonal and GdFeO3-type distortions and the strong Hund's rule coupling between e_g and t_2g electrons. To clarify the situation we calculate the transition temperature for the Kugel-Khomskii superexchange mechanism by using the local density approximation+dynamical mean-field method, and disentangle the effects of super-exchange from those of lattice distortions. We find that super-exchange alone would yield T_KK=650 K. The tetragonal and GdFeO3-type distortions, however, reduce T_KK to 550 K. Thus electron-phonon coupling is essential to explain the persistence of local Jahn-Teller distortions to at least 1150 K and to reproduce the occupied orbital deduced from neutron scattering.
description: 4 pages, 3 figures; published version (minor changes)
Mixed infections with cucumber necrosis virus and tobacco necrosis virus
Creators: name: Pekkala, David H.
Publisher: name: University of British Columbia
Year: 2010

description: Tobacco necrosis virus (TNV) interfered with cucumber necrosis virus (CNV) replication in mixed infections. TNV inhibited both the initiation of CNV infections and subsequent CNV multiplication. Evidence of interference was found in qualitative evaluations of symptoms on a wide host range and by quantitative evaluations (lesion counts and incidence of systemic symptoms) on cucumber, cowpea, and bean. Fresh weight measurements similarly indicated antagonism in mixed infections. Some evidence of CNV interfering with TNV replication was found, in the form of a reduction in the occurrence of systemic symptoms. Photometric scanning of sucrose density gradient columns after centrifugation revealed that in mixed infections CNV reached only half the concentration attained in single infections while TNV was unaffected or even very slightly increased in concentration. This interference continued even when high temperatures greatly limited TNV replication. Only at 3° C, where its replication was barely detectable, did TNV have no effect on the CNV concentration attained. CNV did not significantly aid TNV replication at any temperature. In serial passage of mixed infections TNV quickly gained in concentration relative to CNV. Although CNV and TNV symptoms could not readily be distinguished from one another on most hosts, Phaseolus vulgaris var. Topcrop kept at 23 C and Chenopodium capitaturn kept at 18 C were established as reliable indicators of CNV and TNV respectively. One preparation from doubly infected tissue showed evidence of possible phenotypic mixing based on polyacrylamide gel electrophoresis and on reactions with antisera, although this could not be confirmed by infectivity tests. Through use of the antigen-antibody neutralization test, another virus preparation from doubly infected tissue gave evidence of possible genomic masking of TNV RNA in CNV coat protein. No evidence of possible genomic masking in the opposite direction was found.
Infrared stability of ABJ-like theories
Creators: name: Bianchi, Marco S.
name: Penati, Silvia
name: Siani, Massimo
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider marginal deformations of the superconformal ABJM/ABJ models which preserve N=2 supersymmetry. We determine perturbatively the spectrum of fixed points and study their infrared stability. We find a closed line of fixed points which is IR stable. The fixed point corresponding to the ABJM/ABJ models is stable under marginal deformations which respect the original SU(2)xSU(2) invariance, while deformations which break this group destabilize the theory which then flows to a less symmetric fixed point. We discuss the addition of flavor degrees of freedom. We prove that in general a flavor marginal superpotential does not destabilize the system in the IR. An exception is represented by a marginal coupling which mixes matter charged under different gauge sectors. Finally, we consider the case of relevant deformations which should drive the system to a strongly coupled IR fixed point recently investigated in arXiv:0909.2036 [hep-th].
description: 1+11 pages, 4 figures; v2: minor corrections
Measurement Of |V_ub| From Inclusive Charmless Semileptonic B Decays
Creators: name: The Belle Collaboration
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present the partial branching fraction for inclusive charmless semileptonic B decays and the corresponding value of the CKM matrix element |Vub|, using a multivariate analysis method to access ~90% of the B -> Xu l nu phase space. This approach dramatically reduces the theoretical uncertainties from the b-quark mass and non-perturbative QCD compared to all previous inclusive measurements. The results are based on a sample of 657 million B -Bbar pairs collected with the Belle detector. We find that Delta BR(B -> Xu l nu; p^*B_l>1.0 GeV/c=1.963 x (1 +/- 0.088(stat.) +/- 0.081(sys.)) x 10^-3. Corresponding values of |Vub| are extracted using several theoretical calculations.
description: 9 pages, 1 figure, 2 tables. Published in PRL
Fluctuation-induced collective motion: A single-particle density analysis
Creators: name: Lee, Chiu Fan
Publisher: name: arXiv
Year: 2010
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: In a system of noisy self-propelled particles with interactions that favor directional alignment, collective motion will appear if the density of particles increases beyond a certain threshold. In this paper, we argue that such a threshold may depend also on the profiles of the perturbation in the particle directions. Specifically, we perform mean-field, linear stability, perturbative and numerical analyses on an approximated form of the Fokker-Planck equation describing the system. We find that if an angular perturbation to an initially homogeneous system is large in magnitude and highly localized in space, it will be amplified and thus serves as an indication of the onset of collective motion. Our results also demonstrate that high particle speed promotes collective motion.
description: To appear in Physical Review E.
Parkin regulates amino acid homeostasis at mitochondria-lysosome (M/L) contact sites in Parkinson's disease
Creators: name: Peng, Wesley
name: Schröder, Leonie
name: Song, Pingping
name: Wong, Yvette
name: Krainc, Dimitri
Publisher: name: Zenodo
Year: 2023
Subjects: mitochondrial
lysosome
Parkinsons disease
amino acid
Parkin

description: Mutations in the E3 ubiquitin ligase parkin are the most common cause of early-onset Parkinson's disease (PD). Although parkin modulates mitochondrial and endolysosomal homeostasis during cellular stress, whether parkin regulates mitochondrial and lysosomal crosstalk under physiologic conditions remains unresolved. Using transcriptomics, metabolomics, and super-resolution microscopy, we identify amino acid metabolism as a disrupted pathway in iPSC-derived dopaminergic neurons from parkin PD patients. Compared to isogenic controls, parkin mutant neurons exhibit decreased mitochondria-lysosome contacts via destabilization of active Rab7. Subcellular metabolomics in parkin mutant neurons reveals amino acid accumulation in lysosomes and their deficiency in mitochondria. Knockdown of the Rab7 GTPase-activating protein TBC1D15 restores mitochondria-lysosome tethering and ameliorates cellular and subcellular amino acid profiles in parkin mutant neurons. Our data thus uncover a function of parkin in promoting mitochondrial and lysosomal amino acid homeostasis through stabilization of mitochondria-lysosome contacts and suggest that modulation of inter-organelle contacts may serve as a potential target for ameliorating amino acid dyshomeostasis in disease.
description: Funding provided by: National Institute on Aging
Crossref Funder Registry ID: http://dx.doi.org/10.13039/100000049
Award Number: AG066333Funding provided by: National Institute of Neurological Disorders and Stroke
Crossref Funder Registry ID: http://dx.doi.org/10.13039/100000065
Award Number: NS109252Funding provided by: National Institute of Neurological Disorders and Stroke
Crossref Funder Registry ID: http://dx.doi.org/10.13039/100000065
Award Number: NS122257
Xyloglucan degradation PUL detetection with NetSyn
Creators: name: , STAM
Publisher: name: Zenodo
Year: 2021
Subjects: NetSyn
network
genomic context

description:  An operon-like structure, grouping CAZymes (for Carbohydrate Active enZymes), transcriptional regulators and transporters, has been highlighted (Bjursell et al., 2006). In Bacteroidetes, this system is called Polysaccharide Utilization Locus (PULs) and is composed of colocalized gene clusters that encode enzyme and protein ensembles required for the saccharification of complex carbohydrates. The first described PULs was centered around a transport system composed of two proteins : a TonB-dependent receptor, namely susC, and a carbohydrate binding protein, namely susD. Therefore, the different efforts to detect PULs were based on the research of the SusC/SusD couple followed by the inspection of the glycosyl hydrolase (GH) composition nearby (Terrapon et al., 2015). But the SusC/SusD paradigme is challenged by the discovery of different sugar systems transport associated to PULs (Larsbrink et al., 2014; O Sheridan et al., 2016) or by the fact that the SusC/SusD system is not necessary to be localized into the gene cluster (Ficko-Blean et al., 2017). Consequently, in order to detect gene clusters or PULs, a method which is freed from the search for a particular gene and which highlights the colocalization of non homologous genes is necessary. NetSyn is able to handle genes with no homology but having similar GC, like genes involved in the xyloglucan PUL.  Larbrink et al. (Larsbrink et al., 2014) have demonstrated that Cellvibrio japonicus strain Ueda107 can degrade the xyloglucan with a gene locus composed by 3 genes belonging to glycosyl hydrolase families GH31, GH35 and GH95 (genes xyl31A, bgl35A and afc95A respectively) and a transporter. Here we demonstrat that NetSyn is able to retrieve this particular PUL throught different genomes. 
title: Developing novel mucoadhesive chitosan based formulations for drug delivery to the urinary bladder
Creators: name: Kolawole, Oluwadamilola Miriam
Publisher: name: University of Reading
Year: 2019

description: My PhD project aims to develop novel chitosan derivatives (with superior mucoadhesiveness) for transmucosal application. The intravesical route was chosen as the exemplar transmucosal mode of drug delivery due to the limited therapeutic efficiency of conventional bladder cancer formulations. Drug carriers with improved mucoadhesive properties may prolong drug residence in the bladder. First, three chitosan grades were used to prepare chitosan/β-glycerophosphate in situ gelling mixtures and from these grades, the high molecular weight graded chitosan (HCHI) was chosen for chemical derivatisation based on its superior gelation, mucoadhesive and drug release potential. HCHI was conjugated with varying amounts of methacrylate or phenylboronate groups in order to evaluate the influence of the type and amount of conjugated hydrophobic pendant group on their physicochemical and mucoadhesive properties. The boronated and methacrylated chitosans were characterised using 1H NMR and FT- IR. There was good correlation in the extent of hydrophobic modification for methacrylated and boronated chitosans using 1H NMR and ninhydrin test. Methacrylated and boronated chitosan exhibited comparable resistance to pH influence on their solubility. The degree of methacrylate or boronate conjugation had a significant influence on the mucoadhesiveness of the drug carriers studied using a urine flow-through technique/fluorescent microscopy as well as a texture analyser, on porcine bladder in vitro. Boronate groups conferred superior mucoadhesive behaviour on chitosan relative to methacrylate groups. Methacrylated chitosan displayed a similar safety profile to the parent chitosan based on MTT assay on UMUC3 bladder cancer cells. The biocompatibility studies of boronated chitosan will be carried out in future studies using bladder cell lines despite the fact that several in vitro and in vivo studies have established the safety of phenylboronic molecules. Methacrylation and boronation of chitosan has been identified as efficient strategies to generate more mucoadhesive drug carriers which could prolong drug residence time in the bladder thereby improving therapeutic outcomes of bladder cancer patients. These novel polymers were easily synthesised requiring minimal equipment suitable for industrial scale-up. These excipients could be used to formulate affordable transmucosal dosage forms with superior mucoadhesiveness for a variety of biomedical applications.
Additional file 1 of Design and implementation of a basic and global point of care ultrasound (POCUS) certification curriculum for emergency medicine faculty
Creators: name: Russell, Frances M.
name: Kennedy, Sarah K.
name: Rood, Loren K.
name: Nti, Benjamin
name: Herbert, Audrey
name: Rutz, Matt A.
name: Palmer, Megan
name: Ferre, Robinson M.
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: Additional file 1. Pre-survey.
Generalized Dynamical Spin Chain and 4-Loop Integrability in N=6 Superconformal Chern-Simons Theory
Creators: name: Bak, Dongsu
name: Min, Hyunsoo
name: Rey, Soo-Jong
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We revisit unitary representation of centrally extended (2 | 2) excitation superalgebra. We find most generally that `pseudo-momentum', not lattice momentum, diagonalizes spin chain Hamiltonian and leads to generalized dynamic spin chain. All known results point to lattice momentum diagonalization for N=4 super Yang-Mills theory. Having different interacting structure, we ask if N=6 superconformal Chern-Simons theory provides an example of pseudo-momentum diagonalization. For SO(6) sector, we study maximal shuffling and next-to-maximal shuffling terms in the dilatation operator and compare them with results expected from psu(2|2) superalgebbra and integrability. At two loops, we rederive maximal shuffling term (3-site) and find perfect agreement with known results. At four loops, we first find absence of next-to-maximal shuffling term (4-site), in agreement with prediction based on integrability. We next extract maximal shuffling term (5-site), the most relevant term for checking the possibility of pseudo-momentum diagonalization. Curiously, we find that result agrees with integraility prediction based on lattice momentum, as in N=4 super Yang-Mills theory. Consistency of our results is fully ensured by checks of renormalizability up to six loops.
description: 30 pages, 13 figures, v2. references added and conclusion changed; v3. references updated, v4. final published version
title: Revisión del tratamiento percutáneo ecoguiado de la tendinitis calcificada del manguito rotador en nuestro centro
Creators: name: Bares Fernández, Ignacio
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Interventional non-vascular
subject: Musculoskeletal soft tissue
subject: Musculoskeletal system
subject: Ultrasound
subject: Percutaneous
subject: Puncture
subject: Treatment effects
subject: Calcifications / Calculi

description: Objetivos
Material y método
Resultados
Conclusiones
Bibliografía
description: Objetivos:
-Revisar los resultados conseguidos tras el tratamiento percutáneo guiado por ecografía de la tendinitis calcificada del manguito rotador efectuado en pacientes de nuestro centro. -Analizar dichos resultados y determinar la efectividad del...
Frustrated quantum antiferromagnetism with ultracold bosons in a triangular lattice
Creators: name: Eckardt, Andre
name: Hauke, Philipp
name: Soltan-Panahi, Parvis
name: Becker, Christoph
name: Sengstock, Klaus
name: Lewenstein, Maciej
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We propose to realize the anisotropic triangular-lattice Bose-Hubbard model with positive tunneling matrix elements by using ultracold atoms in an optical lattice dressed by a fast lattice oscillation. This model exhibits frustrated antiferromagnetism at experimentally feasible temperatures; it interpolates between a classical rotor model for weak interaction, and a quantum spin-1/2 $XY$-model in the limit of hard-core bosons. This allows to explore experimentally gapped spin liquid phases predicted recently [Schmied et al., New J. Phys. {\bf 10}, 045017 (2008)].
description: 6 pages, as published in EPL
Scores on independence, quality of life, and satisfaction on visual mapping software intervention in children with Down syndrome
Creators: name: Han, Samuel Sangyoon
Publisher: name: Zenodo
Year: 2023
Subjects: Quality of life
ABAS-3 score
satisfaction
Down Syndrome
Independence
Adaptive Behaviour
Visual mapping
Assistive technology
feasibility

description: Enhancing independence and quality of life are key modifiable outcomes that are short- and long-term goals for children with Down syndrome and for their parents. Here we report the outcome of a 4-week feasibility study in a cohort of 26 children with Down Syndrome, 7–17 years old, who used an assistive technology approach that incorporated smart device software and step-by-step pictures (the MapHabit System). Parents reported improvements in children's activities of daily living, quality of life, and independence. They recommended this technology to other families. This report and its findings underscore the feasibility of using assistive technology in children with Down syndrome within home and family settings. The current findings that assistive technology can be used successfully and effectively in family and home settings set the stage for more informative systematic studies using assistive technology for this population.
description: Funding provided by: National Institute on Aging
Crossref Funder Registry ID: http://dx.doi.org/10.13039/100000049
Award Number: R43AG065081
description: Data was collected through self-report instruments in electronic form. ABAS-3 data was collected through the WPS Online Evaluation System. Both Quality of Life and Satisfaction instrument data were collected through the REDCap platform.
title: Interpretación de hallazgos sugestivos de tromboembolismo pulmonar (TEP) en radiología simple: ¿Más vale un R1 que ninguno?
Creators: name: Novo, Ulrike
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Thorax

description: Objetivos
Material y método
Resultados
Conclusiones
Bibliografía
description: Objetivos:
Evaluar la concordancia interobservador en la interpretación de hallazgos radiológicos sugestivos de TEP entre adjunto y residente de primer año de...
title: Activity of cannabidiol on adenosine signalling in a chronic model of epilepsy
Creators: name: Hu, Yuhan
Publisher: name: University of Reading
Year: 2023

description: Over 50 million people worldwide have some form of epilepsy, characterised by seizures resulting from hyperexcitability of neuronal networks. Around a third of those with epilepsy are unable to control their seizures using current antiepileptic drugs or therapies, underscoring a large unmet clinical need for developing new pharmacotherapies. Cannabidiol (CBD), a nonpsychoactive component of the Cannabis sativa plant, has an anecdotal antiseizure history and has been gaining regulatory approval for epilepsy syndromes. However, its mechanism of action remains to be fully elucidated. The central adenosine signalling system has been proposed as a putative target for the CBD mechanism of action. Adenosine acts as a neuromodulator within the central nervous system through activation of the inhibitory adenosine 1 receptor (A1R), and release of adenosine is seen during seizures. This adenosine release provides an endogenous seizure termination mechanism. CBD has been shown to inhibit the bi-directional Equilibrative Nucleoside Transporter 1 (ENT1), which allows adenosine to transit cellular membranes by passive diffusion. This thesis uses in vitro techniques with a rat model of chronic epilepsy to test the hypothesis that prevention of adenosine reuptake through CBD blockade at ENT1, allowing for greater activation of the inhibitory A1R, underlies the antiepileptic efficacy of CBD. These techniques include functional electrophysiological recordings using multielectrode arrays to assess local field potentials in hippocampal slices, and enzymatic biosensors detecting adenosine concentration in the same slices. Additionally, qPCR, radioligand binding, and Western blotting were used to quantify any changes in expression of A1R, the adenosine 2A receptor (A2AR; which stimulates excitatory transmission), and ENT1 as a result of chronic epilepsy. Hippocampal slices taken from epileptic rats appeared to show a decrease in the ability of endogenously released adenosine to inhibit network activity, following seizure-like stimulation. Application of CBD (10 µM) returned adenosine potency to that seen in healthy hippocampus; however, peak adenosine release as measured by biosensors was significantly lower in the presence of CBD. Through radioligand binding, a decrease in A1R expression in epileptic hippocampus was found; a dysfunction in A1R activation was corroborated through use of an 8-CPT, an A1R antagonist, which potentiated field potentials significantly less in epileptic tissue than healthy. Additionally, CBD again appeared to positively modulate low concentrations of adenosine towards inhibition in epileptic hippocampal slices. While CBD did not appear to inhibit reuptake of seizure-associated adenosine in our assays, there appears to be a modulatory role it may play at adenosine receptors. Adenosine dysfunction in chronic epilepsy is indicated, but further experiments are required to characterise the contribution of the receptors, the transporter, and the interaction with CBD.
Theoretical study of hydrogen microstructure in models of hydrogenated amorphous silicon
Creators: name: Timilsina, Rajendra
name: Biswas, Parthapratim
Publisher: name: arXiv
Year: 2009
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study the distribution of hydrogen and various hydride configurations in realistic models of a-Si:H for two different concentration generated via experimentally constrained molecular relaxation approach (ECMR) [1]. The microstructure corresponding to low (< 10%) and high (> 20%) concentration of H atoms are addressed and are compared to the experimental results with particular emphasis on the size of H clusters and local environment of H atoms.The linewidths of the nuclear magnetic resonance (NMR) spectrum for the model configurations are calculated in order to compare to the experimental NMR data. Our study shows the presence of isolated hydrogen atoms, small and relatively large clusters with average proton-proton neighbor distance in the clusters around 1.6 to 2.4 Angstrom that have been observed in multiple quantum NMR experiments.
description: 5 pages, 5 figures
title: Traumatismo escroto-peneano: Valoración mediante ultrasonidos.
Creators: name: Normantas, Erica
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Emergency
subject: Genital / Reproductive system male
subject: Trauma
subject: Ultrasound
subject: Ultrasound-Colour Doppler
subject: eLearning
subject: Ischaemia / Infarction
subject: Trauma

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
-Realizar un breve recuerdo anatómico del escroto y elpene. - Repasar las indicaciones y la técnica ecográfica. - Reconocer ecográficamentelas principales alteraciones de lapatología escroto-peneana traumática,
basandonos en una clasificación...
Emission of Low-Energy Photons by Electrons at Electron-Positron and Electron-Ion Colliders with Dense Bunches
Creators: name: Jentschura, U. D.
name: Kotkin, G. L.
name: Serbo, V. G.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Usually, the emission of low-energy photons in electron-positron (or electron-ion) bunch collisions is calculated with the same approach as for synchrotron radiation (beamstrahlung). However, for soft photons (E_gamma < E_c where E_c is a critical photon energy), when the coherence length of the radiation becomes comparable to the bunch length, the beamstrahlung approximation becomes invalid. In this paper, we present results of our calculation for this region based on approximation of classical currents. We consider several colliders with dense bunches. The number of low-energy photons dN_gamma emitted by N_e electrons per bunch crossing in the energy interval dE_gamma is dN_gamma = alpha g N_e dE_gamma/E_gamma, where alpha is the fine-structure constant, and the function g, which depends on the bunch parameters, typically is of order unity for modern colliders. In particular, for the ILC, we find that E_c = 83 keV and g=5.5 at a vanishing beam axis displacement, and g=0.88, E_c=0.24 keV for KEKB. We also calculate the specific dependence of dN_gamma on the impact parameter between the two beam axes. In principle, the latter aspect allows for online monitoring of the beam axis displacement.
description: 10 pages, RevTex
Community study (New Jersey) of alcohol use (Survey)
Creators: name: Alcohol Research Documentation, Inc.
Publisher: name: No Publisher Supplied
Year: 1964

description: Copy of the survey for the study by H. Fallding and C. Miles: Drinking, community and civilization: The account of a New Jersey interview study, published by the Publications Division, Rutgers Center of Alcohol Studies in 1974.From the Ralph G. Connor Alcohol Research Reference Files (CARRF). CARRF ID: 2.1.12.
title: El radiólogo en el estadiaje ganglionar de los tumores pélvicos.
Creators: name: González Sainza, Cristina
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Pelvis
subject: Lymph nodes

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Mejorar la aproximación del radiólogo al estadiaje ganglionar de los tumores pélvicos,
haciendo énfasis en la importancia del conocimiento de la anatomìa de los grupos ganglionares,
las vías de extensión de cada tumor,
así como conocer el...
Finite-Size Scaling and Power Law Relations for Dipol-Quadrupol Interaction on Blume-Emery-Griffiths Model
Creators: name: Özkan, Aycan
name: Kutlu, Bülent
Publisher: name: arXiv
Year: 2010
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The Blume-Emery-Griffiths model with the dipol-quadrupol interaction (\ell) has been simulated using a cellular automaton algorithm improved from the Creutz cellular automaton (CCA) on the face centered cubic (fcc) lattice. The finite-size scaling relations and the power laws of the order parameter (M) and the susceptibility (χ) are proposed for the dipol-quadrupol interaction (\ell). The dipol-quadrupol critical exponent δ_{\ell} has been estimated from the data of the order parameter (M) and the susceptibility (χ). The simulations have been done in the interval 0\leq \ell =L/J\leq 0.01 for d=D/J=0, k=K/J=0 and h=H/J=0 parameter values on a face centered cubic (fcc) lattice with periodic boundary conditions. The results indicates that the effect of the \ell parameter is similar to the external magnetic field (h). The critical exponent δ_{\ell}$ are in good agreement with the universal value (δ_{h}=5) of the external magnetic field.
Essays on the Empirical Analysis of Economic and Political Development in Sub-Saharan Africa
Creators: name: Chaiwat, Thanee <1976>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2013
Subjects: SECS-P/01 Economia politica

description: In Sub-Saharan Africa, non-democratic events, like civil wars and coup d'etat, destroy economic development. This study investigates both domestic and spatial effects on the likelihood of civil wars and coup d'etat. To civil wars, an increase of income growth is one of common research conclusions to stop wars. This study adds a concern on ethnic fractionalization. IV-2SLS is applied to overcome causality problem. The findings document that income growth is significant to reduce number and degree of violence in high ethnic fractionalized countries, otherwise they are trade-off. Income growth reduces amount of wars, but increases its violent level, in the countries with few large ethnic groups. Promoting growth should consider ethnic composition. This study also investigates the clustering and contagion of civil wars using spatial panel data models. Onset, incidence and end of civil conflicts spread across the network of neighboring countries while peace, the end of conflicts, diffuse only with the nearest neighbor. There is an evidence of indirect links from neighboring income growth, without too much inequality, to reduce the likelihood of civil wars. To coup d'etat, this study revisits its diffusion for both all types of coups and only successful ones. The results find an existence of both domestic and spatial determinants in different periods. Domestic income growth plays major role to reduce the likelihood of coup before cold war ends, while spatial effects do negative afterward. Results on probability to succeed coup are similar. After cold war ends, international organisations seriously promote democracy with pressure against coup d'etat, and it seems to be effective. In sum, this study indicates the role of domestic ethnic fractionalization and the spread of neighboring effects to the likelihood of non-democratic events in a country. Policy implementation should concern these factors.
title: The zooarchaeology of the Anglo-Saxon Christian conversion: Lyminge, a case study
Creators: name: Knapp, Zoe
Publisher: name: University of Reading
Year: 2019

description: The study of human-animal relationships in their myriad forms has the potential to answer some of the most fundamental questions relating to human behaviour and cultural identity. It is therefore surprising that zooarchaeology has rarely been utilised to its full potential to inform on the significant changes that took place over the course of the Anglo-Saxon period, with analysis seldom moving beyond socio-economic interpretations of animal husbandry. The large, well-dated zooarchaeological assemblage from Anglo-Saxon Lyminge, Kent, offers an exceptional opportunity to examine how human-animal relationships were shaped and reconfigured by key historical processes encapsulated by a 500-year occupation sequence. Lyminge is a high-status Anglo-Saxon settlement of international importance, incorporating a fifth – sixth century settlement, which developed into a seventh century hall-complex, and finally evolved into a spatially distinct documented eighth – ninth century pre-Viking monastery (Thomas 2017). This thesis presents the results of the zooarchaeological analysis and interpretation of the faunal assemblage from Lyminge, adopting an integrated multi-disciplinarily approach which includes the results of a small-scale isotope study of the faunal remains. Thesis data is contextualised within a broader synthesis of archaeological and zooarchaeological data from contemporary sites to assess how shifts in animal husbandry, attitudes to the wild, treatment of companion animals and the consumption of food, reflect changing world-views on both a site-based and regional scale. The results of this analysis indicate that there were distinct diachronic trends in species representation and, in the case of domesticated animals, management strategies, that coincide with Lyminge’s transformation from a pre-Christian royal vill into an affluent monastic community. These transformations are particularly evident in the shift from the consumption of large quantities of pigs in the fifth – seventh century to the consumption of high numbers of chicken in the eighth – ninth century, a change that is accompanied by more intensive sheep husbandry and a new focus on arable agriculture. Such dramatic shifts in dietary patterns identified through innovative zooarchaeological research reflect wider changes in cultural practices and religious affiliations of the Kentish elite at a pivotal moment in the formation of Christian kingdoms throughout Anglo-Saxon England.
L'impegno la passione l'obbedienza. Olinto Marella intellettuale e sacerdote tra Otto e Novecento
The commitment of the passion obedience. Olinto Marella intellectual and priest in the nineteenth and twentieth century
Creators: name: Lagioia, Vincenzo <1977>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2013
Subjects: M-STO/04 Storia contemporanea

description: È importante ricordare che l’attuale Archivio Marella (AM) è stato costituito sotto la direzione del prof.re Mauro Pesce insieme alla dott.ssa Donatella Micheletti negli anni 1981-1983, dopo che Edero Gattamorta aveva contribuito in modo determinante a raccogliere il materiale che veniva inseguito inserito e pubblicato nel lavoro di tesi: Olinto Marella (1882-1969). Rinvenimento e sistemazione dell’archivio. Schizzo biografico, AA 1975-76, relatore Mauro Pesce, Università Bologna, Facoltà Scienze Politiche.
I nuclei principali del materiale conservato nell’archivio riguardano: 1) la vita di Marella; 2) le iniziative caritative di M. dalla metà degli anni trenta in poi; 3) la famiglia Marella, soprattutto lo zio G. M. Marella; 4) la biblioteca. 
Già nella Guida alla consultazione dell’archivio curata da M. Pesce e stampata nel 1984 si rilevava come il materiale inventariato dal dr. E. Gattamorta nel 1975-76 del settore b) e quello del settore c) fosse assolutamente provvisorio e in parte non catalogato
description: It is important to remember that the current Archive Marella (AM ) was established under the direction of Mauro Pesce prof.re together with Donatella Micheletti in the years 1981-1983 after Edero Gattamorta had contributed significantly to collect the material that was being chased inserted and published in the thesis work: Olinto Marella ( 1882-1969 ) . Tempering and accommodation archive. Biographical sketch , AA 1975-76 , speaker Mauro Pesce , University of Bologna, Faculty Political Science .
The main nuclei of the material stored in the archive are: 1 ) the life of Marella , 2) the charitable initiatives of M. the mid- thirties onwards , and 3) the Marella family , especially Uncle G. M. Marella , 4) the library.
Already in the Guide to the archive curated by M. Fish and printed in 1984 is noted as the material inventoried by dr. E. Gattamorta in 1975-76 the industry b ) and that of the sector c ) was absolutely provisional and partly not cataloged
Toward a 3D in vitro model based on decellularized thymus to maintain adult thymic ephitelial cells functionality
Creators: name: Strusi, Valentina <1985>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2014
Subjects: BIO/16 Anatomia umana

description: During my PhD,I have been develop an innovative technique to reproduce in vitro the 3D thymic microenvironment, to be used for growth and differentiation of  thymocytes, and possible transplantation replacement in conditions of depressed thymic immune regulation. The work has been developed in the laboratory of Tissue Engineering at the University Hospital in Basel, Switzerland, under the tutorship of Prof.Ivan Martin. 
Since a number of studies have suggested that the 3D structure of the thymic microenvironment might play a key role in regulating the survival and functional competence of thymocytes, I’ve focused my effort on the isolation and purification of the extracellular matrix of the mouse thymus. Specifically, based on the assumption that TEC can favour the differentiation of pre-T lymphocytes, I’ve developed a specific decellularization protocol to obtain the intact, DNA-free extracellular matrix of the adult mouse thymus. 
Two different protocols satisfied the main characteristics of a decellularized matrix, according to qualitative and quantitative assays. In particular, the quantity of DNA was less than 10% in absolute value, no positive staining for cells was found and the 3D structure and composition of the ECM were maintained. In addition, I was able to prove that the decellularized matrixes were not cytotoxic for the cells themselves, and were able to increase expression of MHC II antigens compared to control cells grown in standard conditions.
I was able to prove that TECs grow and proliferate up to ten days on top the decellularized matrix.
After a complete characterization of the culture system, these innovative natural scaffolds could be used to improve the standard culture conditions of TEC, to study in vitro the action of different factors on their differentiation genes, and to test the ability of TECs to induce in vitro maturation of seeded T lymphocytes.
Weak lensing and dark energy: the impact of dark energy on nonlinear dark matter clustering
Creators: name: Joudaki, Shahab
name: Cooray, Asantha
name: Holz, Daniel E.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We examine the influence of percent-level dark energy corrections to the nonlinear matter power spectrum on constraints of the dark energy equation of state from future weak lensing probes. We explicitly show that a poor approximation (off by > 10%) to the nonlinear corrections causes a > 1 sigma bias on the determination of the dark energy equation of state. Future weak lensing surveys must therefore incorporate dark energy modifications to the nonlinear matter power spectrum accurate to the percent-level, to avoid introducing significant bias in their measurements. For the WMAP5 cosmology, the more accurate power spectrum is more sensitive to dark energy properties, resulting in a factor of two improvement in dark energy equation of state constraints. We explore the complementary constraints on dark energy from future weak lensing and supernova surveys. A space-based, JDEM-like survey measures the equation of state in five independent redshift bins to ~10%, while this improves to ~5% for a wide-field ground-based survey like LSST. These constraints are contingent upon our ability to control weak lensing systematic uncertainties to the sub-percent level.
description: 12 pages, 12 figures. Typo in Eqn 8 corrected
Additional file 5 of Analgesic effectiveness of serratus anterior plane block in patients undergoing video-assisted thoracoscopic surgery: a systematic review and updated meta-analysis of randomized controlled trials
Creators: name: Li, Jie
name: Wang, Xiaoyu
name: Wang, Yinge
name: Zhang, Wenwu
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 5.
Additional file 2 of Design and implementation of a basic and global point of care ultrasound (POCUS) certification curriculum for emergency medicine faculty
Creators: name: Russell, Frances M.
name: Kennedy, Sarah K.
name: Rood, Loren K.
name: Nti, Benjamin
name: Herbert, Audrey
name: Rutz, Matt A.
name: Palmer, Megan
name: Ferre, Robinson M.
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: Additional file 2. Post-survey.
Positrons : practical plasma probe?
Creators: name: Ziemelis, Ugis Oskars
Publisher: name: University of British Columbia
Year: 2010

description: The feasibility of using positrons to probe plasmas is investigated. Analysis of the y rays resulting from the annihilation of positrons with plasma electrons may yield information about the momentum distribution, temperature and number density of these electrons. A number of 'positron probe1 success criteria are introduced and a wide range of positron-plasma systems are evaluated in light of these criteria. Of special importance are positron annihilation time (Ta) and thermalization time (Tt) calculations, which indicate that the most important success criterion, Tt < Ta, is satisfied by the class of plasmas characterized by kTe > 10 eV. Two potential fusion plasmas, namely Tokamak and laser compression plasmas, belong to this class (where some positron diagnostic techniques may be practical). Detailed fractional thermalization calculations for positrons from a ²²Na source in hypothetical, fully ionized H₂ plasmas of these types indicate that most positrons will thermalize and annihilate while the plasma environment is in existence. Positron sources, including pair creation, which is predicted to occur in both Tokamak and laser compression plasmas, and y ray detectors are discussed. Annihilation y ray counting rates are estimated under a variety of circumstances for both NaI(Tl) and Ge(Li) detectors to prepare the way for the assessment of specific positron diagnostic techniques. Four such techniques are evaluated with reference to both Tokamak and laser compression plasmas. It is concluded that diagnostic techniques involving measurements of shift and broadening of the annihilation line appear most promising in both cases. The measurement of positron lifetimes may be possible in some Tokamak plasmas, but is not feasible in laser compression plasmas. 'Slow' positron probing of plasmas would be ideal, but slow positron sources of sufficient intensity do not yet exist. Angular correlation measurements do not appear feasible at this time.
Radiatively Induced Lorentz and Gauge Symmetry Violation in Electrodynamics with Varying alpha
Creators: name: Ferrero, Alejandro
name: Altschul, Brett
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A time-varying fine structure constant alpha(t) could give rise to Lorentz- and CPT-violating changes to the vacuum polarization, which would affect photon propagation. Such changes to the effective action can violate gauge invariance, but they are otherwise permitted. However, in the minimal theory of varying alpha, no such terms are generated at lowest order. At second order, vacuum polarization can generate an instability--a Lorentz-violating analogue of a negative photon mass squared -m^2 proportional to alpha [(d alpha/dt) / alpha]^2 log (Lambda^2), where Lambda is the cutoff for the low-energy effective theory.
description: 14 pages
title: Effects of oat phenolic acids and avenanthramides on gut microbiota
Creators: name: Kristek, Angelika
Publisher: name: University of Reading
Year: 2022

description: High consumption of wholegrains is related to positive health effects, including reduced risk of cardiovascular disease. Oat β-glucans have been considered to be partly responsible for these effects; furthermore, dietary phenolic acids and avenanthramides, are natural phenolic components in oats, which may also contribute to health benefits, whilst mechanisms for these effects remain unclear. Dietary components are well known to impact on the gut microbiome (GM), this consortium of bacteria are becoming increasingly associated with health effects, as such some of the health effects attributed by oats could be driven by the microbiota. This thesis investigates the potential interaction between of the gut microbiota, β-glucans, polyphenols and oats, to explore if this is a potential route for positive health outcomes. In vitro batch culture fermentations identified oats as a food matrix that significantly increased the abundance of Proteobacteria and Bacteroidetes, the lower dose resulted a bifidogenic effect and influenced microbial production of short chain fatty acids (SCFA). This is mediated by the synergy of all oat compounds within the complex food matrix, rather than its main bioactive β-glucan or polyphenols. During in vitro microbial fermentation, bound phenolic fractions largely remained intact up to 4h, following a significant increase in total free phenolic metabolites at 24 h and reached the same levels as control, pure free phenolic acids of microbial metabolites. 28 healthy adults enrolled on a randomised cross-over trial with three 4-week dietary intervention periods, comprising of a high (68.1 mg of phenolic acids) or moderate (38.9 mg of phenolic acids) avenanthramide and phenolic acid rich-wholegrain oat diet, or fibre matched control diet. The high avenanthramides and phenolic acids rich-wholegrain oat diet significantly increased the relative abundance of Proteobacteria phyla and Sutterella genus, without the alteration of the serum inflammatory markers. These data suggest that daily consumption of oats may beneficially modificate of the microbiota and metabolic activity.
Rutgers Alcohol Problem Index (RAPI) - 23-item version
Creators: name: White, Helene R.
name: Labouvie, Eric
Publisher: name: No Publisher Supplied
Year: 1987

description: Copy of the 23-item version of the Rutgers Alcohol Problem Index (RAPI), a self-administered screening tool for assessing adolescent problem drinking, created by Helene Raskin White and Erich Labouvie. It is free and there is no copyright. The authors request that persons who use the RAPI send them their age/sex forms as well as a description of their sample. See also article: White, H.R. & Labouvie, E.W. (1989). Toward the assessment of adolescent problem drinking. Journal of Studies on Alcohol 50:30-37.Two versions, 23 or 18 items, description, and poster are available from the Ralph G. Connor Alcohol Research Reference Files (CARRF). CARRF ID: 2.3.417A3.
Investigation of cold Rb Rydberg atoms in a magneto-optical trap
Creators: name: Tretyakov, D. B.
name: Beterov, I. I.
name: Entin, V. M.
name: Ryabtsev, I. I.
name: Chapovsky, P. L.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present our results on the experiments with cold Rb Rydberg atoms in a magneto-optical trap (MOT). Characteristic features of our experiment were the excitation of Rydberg atoms in a small volume within the cold atom cloud and sorting of the measured signals and spectra over the number of registered Rydberg atoms. We have measured the effective lifetime of the Rydberg state 37P, as well as its polarizability in a weak electric field. The results are in good agreement with the theoretical calculations. We have shown that localization of the small excitation volume around the zero-magnetic-field point makes possible to increase the spectral resolution and to obtain narrow microwave resonances in Rydberg atoms without switching off the MOT quadrupole magnetic field. We have measured the dependence of the amplitude of the dipole-dipole interaction resonances on the number of Rydberg atoms, which has a linear character and agrees with the theory for weak dipole-dipole interaction.
description: 9 pages, 6 figures. To appear in JETP, 2009. Typo in eq.(7) corrected in v2