cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Homogeneous analysis of a sample of Open Clusters in the context of the BOCCE project and the Gaia-ESO Survey
Creators: name: Donati, Paolo <1984>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2014
Subjects: FIS/05 Astronomia e astrofisica

description: The open clusters (OC) are gravitationally bound systems of a few tens or hundreds of
stars. In our Galaxy, the Milky Way, we
know about 3000 open clusters, of very different ages in the range of a few millions
years to about 9 Gyr. 
OCs are mainly located in the Galactic thin disc, with distances
from the Galactic centre in the range 4-22 kpc and a height scale on the disc of
about 200 pc. Their chemical properties trace those of the environment in which
they formed and the metallicity is in the range -0.5
Development of new tools and devices for CMB and foreground data analysis and future experiments
Creators: name: Molinari, Diego <1985>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2014
Subjects: FIS/05 Astronomia e astrofisica

description: The discovery of the Cosmic Microwave Background (CMB) radiation in 1965 is one of the fundamental milestones supporting the Big Bang theory. The CMB is one of the most important source of information in cosmology. The excellent accuracy of the recent CMB data of WMAP and Planck satellites confirmed the validity of the standard cosmological model and set a new challenge for the data analysis processes and their interpretation.
In this thesis we deal with several aspects and useful tools of the data analysis. We focus on their optimization in order to have a complete exploitation of the Planck data and contribute to the final published results. The issues investigated are: the change of coordinates of CMB maps using the HEALPix package, the problem of the aliasing effect in the generation of low resolution maps, the comparison of the Angular Power Spectrum (APS) extraction performances of the optimal QML method, implemented in the code called BolPol, and the pseudo-Cl method, implemented in Cromaster. The QML method has been then applied to the Planck data at large angular scales to extract the CMB APS. The same method has been applied also to analyze the TT parity and the Low Variance anomalies in the Planck maps, showing a consistent deviation from the standard cosmological model, the possible origins for this results have been discussed. The Cromaster code instead has been applied to the 408 MHz and 1.42 GHz surveys focusing on the analysis of the APS of selected regions of the synchrotron emission. The new generation of CMB experiments will be dedicated to polarization measurements, for which are necessary high accuracy devices for separating the polarizations. Here a new technology, called Photonic Crystals, is exploited to develop a new polarization splitter device and its performances are compared to the devices used nowadays.
Enhancing the efficiency of solar concentrators by controlled optical aberrations
Creators: name: Giannuzzi, Alessandra <1980>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2014
Subjects: FIS/05 Astronomia e astrofisica

description: The diameters of traditional dish concentrators can reach several tens of meters, the construction of monolithic mirrors being difficult at these scales: cheap flat reflecting facets mounted on a common frame generally reproduce a paraboloidal surface.  When a standard imaging mirror is coupled with a PV dense array, problems arise since the solar image focused is intrinsically circular. Moreover, the corresponding irradiance distribution is bell-shaped in contrast with the requirement of having all the cells under the same illumination. Mismatch losses occur when interconnected cells experience different conditions, in particular in series connections.

In this PhD Thesis, we aim at solving these issues by a multidisciplinary approach, exploiting optical concepts and applications developed specifically for astronomical use, where the improvement of the image quality is a very important issue. The strategy we propose is to boost the spot uniformity acting uniquely on the primary reflector and avoiding the big mirrors segmentation into numerous smaller elements that need to be accurately mounted and aligned. In the proposed method, the shape of the mirrors is analytically described by the Zernike polynomials and its optimization is numerically obtained to give a non-imaging optics able to produce a quasi-square spot, spatially uniform and with prescribed concentration level. The freeform primary optics leads to a substantial gain in efficiency without secondary optics. Simple electrical schemes for the receiver are also required. The concept has been investigated theoretically modeling an example of CPV dense array application, including the development of non-optical aspects as the design of the detector and of the supporting mechanics. For the method proposed and the specific CPV system described, a patent application has been filed in Italy with the number TO2014A000016. The patent has been developed thanks to the collaboration between the University of Bologna and INAF (National Institute for Astrophysics).
title: Dr. Leonel J. Villavicencio, MD Oral History Interview Transcript
Creators: name: Uniformed Services University of the Health Sciences
Publisher: name: University Archives, Uniformed Services University of the Health Sciences, Bethesda, Maryland 20814
Year: 2009
Subjects: classificationCode: 3
subject: FOS: Medical and health sciences
classificationCode: 6.1
subject: FOS: History and archaeology

description: USU Oral History Interview Transcript
Dr. Leonel J. Villavicencio, MD
Distinguished Professor, Department of Surgery
09-23-2009
Interviewed by Emelie Rubin
title: Vasculitis cerebrales, un reto diagnóstico
Creators: name: Ossaba Velez, Silvia
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Neuroradiology brain
subject: MR

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Describir las características de las vasculitis primarias y secundarias en el sistema nervioso central y los hallazgos por...
title: Sustancia blanca en RM
Creators: name: Montesinos Garcia, Pau
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Oedema
subject: Ischaemia / Infarction
subject: Inflammation
subject: eLearning
subject: MR
subject: Neuroradiology brain

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
-Describir las enfermedades de la sustancia blanca (SB) en adultos,
haciendo especial hincapié en los hallazgos radiológicos que las diferencian y su escenario clínico habitual. -Dar un enfoque diagnóstico basado en la edad del paciente,
la...
Modeling the spatial dynamics of economic models
Creators: name: Saguatti, Annachiara <1984>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2013
Subjects: SECS-P/02 Politica economica

description: The advances that have been characterizing spatial econometrics in recent years are mostly theoretical and have not found an extensive empirical application yet. In this work we aim at supplying a review of the main tools of spatial econometrics and to show an empirical application for one of the most recently introduced estimators. Despite the numerous alternatives that the econometric theory provides for the treatment of spatial (and spatiotemporal) data, empirical analyses are still limited by the lack of availability of the correspondent routines in statistical and econometric software.
Spatiotemporal modeling represents one of the most recent developments in spatial econometric theory and the finite sample properties of the estimators that have been proposed are currently being tested in the literature. We provide a comparison between some estimators (a quasi-maximum likelihood, QML, estimator and some GMM-type estimators) for a fixed effects dynamic panel data model under certain conditions, by means of a Monte Carlo simulation analysis. We focus on different settings, which are characterized either by fully stable or quasi-unit root series. We also investigate the extent of the bias that is caused by a non-spatial estimation of a model when the data are characterized by different degrees of spatial dependence.
Finally, we provide an empirical application of a QML estimator for a time-space dynamic model which includes a temporal, a spatial and a spatiotemporal lag of the dependent variable. This is done by choosing a relevant and prolific field of analysis, in which spatial econometrics has only found limited space so far, in order to explore the value-added of considering the spatial dimension of the data. In particular, we study the determinants of cropland value in Midwestern U.S.A. in the years 1971-2009, by taking the present value model (PVM) as the theoretical framework of analysis.
Search strategy for MEDLINE (PubMed), Embase and The Cochrane Library.
Creators: name: Hyldahl, Emil
name: Gotfredsen, Klaus
name: Pedersen, Anne Marie Lynge
name: Jensen, Simon Storgård
Publisher: name: figshare
Year: 2023
Subjects: Oral implantology
Autoimmunity

description: Search strategy for MEDLINE (PubMed), Embase and The Cochrane Library.
CIFRA National Survey: Uruguay July 2001
Creators: name: CIFRA, In Bogliaccini, Juan, And Queirolo Rosario Laboratorio De Opinión Pública And Redes Sociales En Uruguay Collection (Social Networks And Public Opinion Lab Collection)
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: Economic situation of your family; economic situation of the country; future financial expectations; devaluing the Uruguayan peso; effects of neighboring countries' economic problems; positive/negative outcomes of a state reformation; likability of presidential candidates and politicians; computer experience; usage of internet; purchasing household appliances; performance of public organizations/groups; improving working conditions; informing citizens about company performance; government improvement of employment; approval of district mayor; approval of president Jorge Batlle; approval of the economic policy of the government; decreasing government expenses; political spectrum position; past voting history. National Agency for Research and Innovation (ANII) Collection.
CIFRA National Survey: Uruguay April 1997
Creators: name: CIFRA, In Bogliaccini, Juan, And Queirolo Rosario Laboratorio De Opinión Pública And Redes Sociales En Uruguay Collection (Social Networks And Public Opinion Lab Collection)
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: First time experiences during your childhood; approval of Parliament; approval of president Julio Maria Sanguinetti; approval of district mayor; necessity of Parliament; increase in minimum wage by Parliament; likability of politicians and presidential candidates; salaries of political figures; interest in politics; university tuition; exams to reduce popularity of majors; public vs. private universities; Parliament's work to combat nation's most important problems; roles and relationships in family; communication with mother; economic situation of your family; ranking important roles of legislators; power of Parliament; economic situation of the country; success of the Social Security Bank (BPS); benefits/drawbacks of social security system; changes in inflation; handling of missing persons cases; agreement with judges' rulings on missing persons cases; past voting history; future voting tendencies. Montevideo and Canelones: Personal medical service choices; membership status of social service program. National Agency for Research and Innovation (ANII) Collection.
title: Characterization of kidney disease in sub-Saharan Africa
Creators: name: Kalyesubula, R
Publisher: name: London School of Hygiene & Tropical Medicine
Year: 2023

description: Background: Chronic kidney disease (CKD) is an established cause of morbidity and mortality worldwide. While methods to determine kidney function are well established in Western populations, there are good reasons to believe these methods may not translate well to sub-Saharan Africa (sSA), meaning the overall burden of CKD is uncertain. The aim of this thesis was to determine the prevalence and mortality associated with renal impairment using conventional estimated glomerular filtration rate (eGFR) approaches, we also compared performance of measured GFR (mGFR) to eGFR and used mGFR based model to impute CKD prevalence in sSA. Methods: We determined the prevalence and all-cause mortality from impaired renal function [defined as eGFR) <60mls/min/1.73m2 within a population-based cohort among adults of 18 years and above in rural Uganda. Working with the African Research on Kidney Disease Network (ARK) a consortium of three community-based cohorts from Malawi, Uganda and South Africa, we stratified participants by level of renal function. We intravenously injected 5millilitres bolus of exogenous iohexol and drew venous samples from the contralateral arm at 5, 120, 180 and 240- minute time points to determine the mGFR. We compared the performance of existing equations to mGFR and used a model to impute kidney function based on mGFR. Results: In Uganda, among 5,979 participants, we found an overall prevalence of eGFR <60 ml/min per 1.73 m2 of 1.6% (95% CI 1.34–1.99) with up to 1,089 (18.2%) having an eGFR <90 ml/min per 1.73 m2 in a predominantly young population. Older age, hypertension and anemia were independently associated with impaired renal function. In adjusted analyses, participants with baseline eGFR ≤45mls/min/1.73m2 had six-fold higher mortality compared to those with eGFR ≥90mls/min/1.73m2 (HR 6.12 (95% CI 2.27-16.45)) with strong evidence of a linear trend for risk of mortality as renal function declined (p<0.001). Among the 2,578 participants with mGFR and 2433 with cystatin C eGFR from the ARK study, we found that that all eGFR equations overestimate GFR compared to mGFR or cystatin C across the three countries and this was worsened by use of ethnicity coefficient. Using a model to impute kidney function based on mGFR, we estimated CKD prevalence to be two to three-fold higher compared to creatinine-based estimates in populations across six countries in sSA. Conclusion: Based on existing creatinine-based methods to estimate GFR, we found a relatively low prevalence of impaired renal function in the general population. We also demonstrated that eGFR <45mls/min/1.73m2 are associated with an increased all-cause mortality. However, using iohexol clearance, we showed that these creatinine-based measures over-estimate GFR and under-estimate CKD. This means a substantial proportion of people with kidney disease are missed by current eGFR equations which may have adverse effects on the health and care of patients with CKD in sSA.
Polyphenolic content and bioactivities of Crataegus oxyacantha L. (Rosaceae)
Creators: name: Wassila Benabderrahmane
name: Lores, Marta
name: Ouahiba Benaissa
name: Lamas, Juan Pablo
name: Miguel, Trinidad De
name: Amrani, Amel
name: Benayache, Fadila
name: Benayache, Samir
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology

description: Solid-Liquid Extraction (SLE) using solvent of different polarities (CHCl3, EtOAc, and n-BuOH) has been applied to leaves and fruits from (Crataegus oxyacantha L.), a deciduous shrub with an expected rich phytochemical profile. The total polyphenols content and the radical scavenging activity of each extract were evaluated. These extracts were analyzed by HPLC-DAD and rutin, quercetin-3-glucoside, caftaric and caffeic acid had been positively identified. The phytochemical study of the ethyl acetate extract of C. oxyacantha, led to the isolation and structural elucidation of quercetin (1); quercetin-3-O-β-glucoside (2); epicatechin (3); naringenin (4), reported for the first time from this species except caffeic acid and epicatechin. These compounds were identified by 1D and 2D NMR combined analysis as well as by MS and UV. The antimicrobial activity of these extracts has also been tested, showing strong antibacterial activity-solvent dependent-against Gram positive bacteria. Additionally, bactericidal power was demonstrated in fruit extracts.
Partizipation in der Pflegekinderhilfe
Creators: name: Andree, Charlotte
name: Caspar, Ann-Christin
name: Lüttich, Wencke
Publisher: name: Hochschule Bremen
Year: 2023
Subjects: subject: Partizipation
subject: Pflegekinder
subject: Ombudsstellen
subject: Praxisforschung
subject: Soziale Arbeit
subject: Mut
subject: Kooperation
subject: 360

description: Gegenstand des Forschungsprojektes "Partizipation in der Pflegekinderhilfe" ist zum einen die subjektive Bedeutung von Partizipation für verschiedene Akteur*innen in einem Pflegeverhältnis und zum anderen die Betrachtung der Rahmenbedingungen zur Realisierung von Partizipation. Ausgehend hiervon wurden folgende Fragestellungen bearbeitet: „Wie erleben die unterschiedlichen Akteur*innen Partizipation in der Pflegekinderhilfe?“ „Was brauchen Pflegekinder, um Partizipation zu leben?“ und „Was sind hilfreiche Rahmenbedingungen für das begleitende Kooperationsnetzwerk, um Partizipation zu ermöglichen?“. Ziel der Forschung ist es, einen Beitrag zur aktuellen Diskussion um die Rolle von Partizipation im Pflegekinderwesen zu leisten.
CIFRA National Survey: Uruguay Late October 2004
Creators: name: CIFRA, In Bogliaccini, Juan, And Queirolo Rosario Laboratorio De Opinión Pública And Redes Sociales En Uruguay Collection (Social Networks And Public Opinion Lab Collection)
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: Economic situation of your family; economic situation of the country; future financial expectations; likability of politicians and presidential candidates; aggressiveness of political campaigns; political spectrum position; voting in primary elections; approval of President Jorge Batlle; referendum on water and sanitation quality; past voting history; potential future voting choices. National Agency for Research and Innovation (ANII) Collection.
On trilinear and quadrilinear equations associated with the lattice Gel'fand–Dikii hierarchy
Creators: name: Van Der Kamp, Pieter
name: Nijhoff, FW
name: McLaren, David
name: Quispel, Gilles
Publisher: name: La Trobe
Year: 2024
Subjects: classificationCode: 49
subject: Mathematical sciences
classificationCode: 4901
subject: Applied mathematics
classificationCode: 4904
subject: Pure mathematics

description: Introduced in Zhang et al. (2012), the trilinear Boussinesq equation is the natural form of the equation for the τ-function of the lattice Boussinesq system. In this paper we study various aspects of this equation: its highly nontrivial derivation from the bilinear lattice AKP equation under dimensional reduction, a quadrilinear dual lattice equation, conservation laws, and periodic reductions leading to higher-dimensional integrable maps and their Laurent property. Furthermore, we consider a higher Gel'fand–Dikii lattice system, its periodic reductions and Laurent property. As a special application, from both a trilinear Boussinesq recurrence as well as a higher Gel'fand–Dikii system of three bilinear recurrences, we establish Somos-like integer sequences.
Intensification of the alcohol withdrawal syndrome by antecedent electroconvulsive shocks
Creators: name: Van Oot, Peter H.
Publisher: name: University of British Columbia
Year: 2010

description: When periodic electroconvulsive shocks (ECSs) were administered, a progressive intensification of the motor seizure (MS) pattern occurred. This effect was observed when ECSs at either 15 or 75 mA were administered at 3-day, but not 1-hr intervals. The magnitude of the increase in severity of the MS pattern was a function of the number of ECSs which approached asymptote, in these experiments, at approximately ten ECSs. Periodic ECSs were also found to potentiate the alcohol withdrawal syndrome. In general, those conditions which were found to facilitate the kindling of MSs were the same as those which produced the potentiation of the alcohol withdrawal syndrome. Furthermore, this potentiation was found to persist up to 3 weeks after the last ECS under the conditions used in these experiments. Finally, the potentiation of the alcohol withdrawal syndrome occurred even after the MSs had been pharmacologically blocked. The results of these experiments were discussed in light of their implications to both basic and clinical research.
Genotoxicity, cytotoxicity and chemical profile from Inga laurina (Fabaceae)
Creators: name: T. O. R. Falcoski
name: N. M. Lima
name: G. Navegante
name: R. B. Serafim
name: J. M. Sorbo
name: V. Valente
name: V. N. C. Santos
name: R. A. Santos
name: D. H. S. Silva
name: C. P. Soares
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer

description: This study aimed to evaluate the cytotoxicity and genotoxicity from Inga laurina leaves extracts and fractions and obtain their chemical profile. The chemical profile of the crude extract from I. laurina leaves and its fractions was investigated through 1H NMR, RP-HPLC-PDA by co-injection with authentic standards and HPLC-MS. The quinone reductase induction as a biomarker for cancer chemoprevention was evaluated in murine hepatocellular carcinoma line, whereas the cytotoxicity was evaluated by sulforhodamine B assay (SRB) using HepG2 cell line and genotoxicity was evaluated by comet assay. The phytochemical analysis of the leaves crude extract and its fractions showed the presence of 2-hydroxyethyl-dodecanoate and the phenolic compounds: gallic acid, methyl gallate, p-coumaric acid, cinnamic acid, myricetin-3-O-(2″-O-galoyl)-α-rhamnopyranoside, proanthocyanidin A-2 and myricetrin. All the fractions tested were not considered cytotoxic against the selected human cancer cell lines, they did not cause genotoxic in some concentrations damage and induced the enzyme quinone reductase.
A Weak Lensing Study of X-ray Groups in the COSMOS survey: Form and Evolution of the Mass-Luminosity Relation
Creators: name: Leauthaud, A.
name: Finoguenov, A.
name: Kneib, J. P.
name: Taylor, J. E.
name: Massey, R.
name: Rhodes, J.
name: Ilbert, O.
name: Bundy, K.
name: Tinker, J.
name: George, M. R.
name: Capak, P.
name: Koekemoer, A. M.
name: Johnston, D. E.
name: Zhang, Y. Y.
name: Cappelluti, N.
name: Ellis, R. S.
name: Elvis, M.
name: Heymans, C.
name: Fevre, O. Le
name: Lilly, S.
name: McCraken, H. J.
name: Mellier, Y.
name: Refregier, A.
name: Salvato, M.
name: Scoville, N.
name: Smoot, G.
name: Tanaka, M.
name: Van Waerbeke, L.
name: Wolk, M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Measurements of X-ray scaling laws are critical for improving cosmological constraints derived with the halo mass function and for understanding the physical processes that govern the heating and cooling of the intracluster medium. In this paper, we use a sample of 206 X-ray selected galaxy groups to investigate the scaling relation between X-ray luminosity (Lx) and halo mass (M00) where M200 is derived via stacked weak gravitational lensing. This work draws upon a broad array of multi-wavelength COSMOS observations including 1.64 square degrees of contiguous imaging with the Advanced Camera for Surveys (ACS) and deep XMM-Newton/Chandra imaging. The combined depth of these two data-sets allows us to probe the lensing signals of X-ray detected structures at both higher redshifts and lower masses than previously explored. Weak lensing profiles and halo masses are derived for nine sub-samples, narrowly binned in luminosity and redshift. The COSMOS data alone are well fit by a power law, M200 ~ Lx^a, with a slope of a=0.66+-0.14. These results significantly extend the dynamic range for which the halo masses of X-ray selected structures have been measured with weak gravitational lensing. As a result, tight constraints are obtained for the slope of the M-Lx relation. The combination of our group data with previously published cluster data demonstrates that the M-Lx relation is well described by a single power law, a=0.64+-0.03, over two decades in mass, 10^13.5-10^15.5 h72^-1 Msun. These results are inconsistent at the 3.7 level with the self-similar prediction of a=0.75. We examine the redshift dependence of the M-Lx relation and find little evidence for evolution beyond the rate predicted by self-similarity from z ~ 0.25 to z ~ 0.8.
description: 20 pages, 9 figures, 1 table. Accepted to ApJ. V2: Typos corrected
Tensor calculus on noncommutative spaces
Creators: name: Vassilevich, D. V.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: It is well known that for a given Poisson structure one has infinitely many star products related through the Kontsevich gauge transformations. These gauge transformations have an infinite functional dimension (i.e., correspond to an infinite number of degrees of freedom per point of the base manifold). We show that on a symplectic manifold this freedom may be almost completely eliminated if one extends the star product to all tensor fields in a covariant way and impose some natural conditions on the tensor algebra. The remaining ambiguity either correspond to constant renormalizations to the symplectic structure, or to maps between classically equivalent field theory actions. We also discuss how one can introduce the Riemannian metric in this approach and the consequences of our results for noncommutative gravity theories.
description: 17p; v2: extended version, to appear in CQG
Raman spectroscopy of (K,Na)NbO3 and ((K,Na)1-xLix)NbO3
Creators: name: Trodahl, H. J.
name: Klein, N.
name: Damjanovic, D.
name: Setter, N.
name: Ludbrook, B.
name: Rytz, D.
name: Kuball, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A Raman scattering spectroscopy study is reported through all four phases of a (K0.5Na0.5)NbO3 crystal and ((K0.5Na0.5)1-xLix)NbO3 for x=0.02 and 0.03. The transitions among the ferroelectric phases in the Li-free crystal are homogeneous and strongly hysteretic, with no evidence of a mixed-phase region between the rhombohedral and orthorhombic phases. The Raman pattern in the lowest-temperature phase in the Li-doped material differs significantly from that found for x=0 and suggest a structural phase boundary exists at for a Li concentration of less than 2%.
ГИПЕРПАРАТИРЕОЗ ДИАГНОСТИКА ОСТРОЙ ПРОБЛЕМЫ
Creators: name: Негматова, Гулзода
name: Хакимова, Гулираъно
name: Тошимова, Гуласал
Publisher: name: Zenodo
Year: 2024

description: Первичный гиперпаратиреоз (ПГПТ) в течение прошлого столетия перешел из разряда редких тяжелых заболеваний в распространенную эндокринную патологию с преобладанием мягких форм течения. Благодаря широкому распространению скрининга на остеопороз, в последние 10—20 лет в мире началась «новая эра» диагностики ПГПТ, когда специалисты стали обнаруживать пациентов на стадии изолированного повышения уровня паратгормона со стойко нормальным уровнем кальция в крови и отсутствием вторичных причин гиперпаратиреоза. Этот феномен был назван нормокальциемическим первичным гиперпаратиреозом (нПГПТ); его распространенность варьирует от 0,4 до 16,7%.
Modelling light-driven proton pumps in artificial photosynthetic reaction centers
Creators: name: Ghosh, Pulak Kumar
name: Smirnov, Anatoly Yu.
name: Nori, Franco
Publisher: name: arXiv
Year: 2009
Subjects: subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: We study a model of a light-induced proton pump in artificial reaction centers. The model contains a molecular triad with four electron states (i.e., one donor state, two photosensitive group states, and one acceptor state) as well as a molecular shuttle having one electron and one proton-binding sites. The shuttle diffuses between the sides of the membrane and translocates protons energetically uphill: from the negative side to the positive side of the membrane, harnessing for this purpose the energy of the electron-charge-separation produced by light. Using methods of quantum transport theory we calculate the range of light intensity and transmembrane potentials that maximize both the light-induced proton current and the energy transduction efficiency. We also study the effect of temperature on proton pumping. The light-induced proton pump in our model gives a quantum yield of proton translocation of about 55 %. Thus, our results explain previous experiments on these artificial photosynthetic reaction centers.
description: 14 pages, two columns format with inserted figures in the text
Searching for the light dark gauge boson in GeV-scale experiments
Creators: name: Reece, Matthew
name: Wang, Lian-Tao
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We study current constraints and search prospects for a GeV scale vector boson at a range of low energy experiments. It couples to the Standard Model charged particles with a strength <= 10^-3 to 10^-4 of that of the photon. The possibility of such a particle mediating dark matter self-interactions has received much attention recently. We consider searches at low energy high luminosity colliders, meson decays, and fixed target experiments. Based on available data, searches both at colliders and in meson decays can discover or exclude such a scenario if the coupling strength is on the larger side. We emphasize that a dedicated fixed target experiment has a much better potential in searching for such a gauge boson, and outline the desired properties of such an experiment. Two different optimal designs should be implemented to cover the range of coupling strength 10^-3 to 10^-5, and < 10^-5 of the photon, respectively. We also briefly comment on other possible ways of searching for such a gauge boson.
description: 33 pages, 5 figures; v2: corrected discussion of Upsilon decays, updates to discussion of fixed-target experiments and QED constraints, numerous minor changes, references added; v3: typo corrected relative to the JHEP published version
Doping dependence of heat transport in the iron-arsenide superconductor Ba(Fe$_{1-x}$Co$_x$)$_2$As$_2$: from isotropic to strongly $k$-dependent gap structure
Creators: name: Tanatar, M. A.
name: Reid, J. P.
name: Shakeripour, H.
name: Luo, X. G.
name: Doiron-Leyraud, N.
name: Ni, N.
name: Bud'ko, S. L.
name: Canfield, P. C.
name: Prozorov, R.
name: Taillefer, Louis
Publisher: name: arXiv
Year: 2009
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The temperature and magnetic field dependence of the in-plane thermal conductivity $κ$ of the iron-arsenide superconductor Ba(Fe$_{1-x}$Co$_x$)$_2$As$_2$ was measured down to $T \simeq 50$ mK and up to $H = 15$ T as a function of Co concentration $x$ in the range 0.048 $ \leq x \leq $ 0.114. In zero magnetic field, a negligible residual linear term in $κ/T$ as $T \to 0$ at all $x$ shows that there are no zero-energy quasiparticles and hence the superconducting gap has no nodes in the $ab$-plane anywhere in the phase diagram. However, the field dependence of $κ$ reveals a systematic evolution of the superconducting gap with doping $x$, from large everywhere on the Fermi surface in the underdoped regime, as evidenced by a flat $κ(H)$ at $T \to 0$, to strongly $k$-dependent in the overdoped regime, where a small magnetic field can induce a large residual linear term, indicative of a deep minimum in the gap magnitude somewhere on the Fermi surface. This shows that the superconducting gap structure has a strongly $k$-dependent amplitude around the Fermi surface only outside the antiferromagnetic/orthorhombic phase.
description: version accepted for publication in Physical Review Letters; new title, minor revision, revised fig.1, and updated references
Hubble Space Telescope Optical Imaging of the Eroding Debris Disk HD 61005
Creators: name: Maness, H. L.
name: Kalas, P.
name: Peek, K. M. G.
name: Chiang, E. I.
name: Scherer, K.
name: Fitzgerald, M. P.
name: Graham, James R.
name: Hines, D. C.
name: Schneider, G.
name: Metchev, S. A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present Hubble Space Telescope optical coronagraphic polarization imaging observations of the dusty debris disk HD 61005. The scattered light intensity image and polarization structure reveal a highly inclined disk with a clear asymmetric, swept back component, suggestive of significant interaction with the ambient interstellar medium. The combination of our new data with the published 1.1 micron discovery image shows that the grains are blue scattering with no strong color gradient as a function of radius, implying predominantly sub-micron sized grains. We investigate possible explanations that could account for the observed swept back, asymmetric morphology. Previous work has suggested that HD 61005 may be interacting with a cold, unusually dense interstellar cloud. However, limits on the intervening interstellar gas column density from an optical spectrum of HD 61005 in the Na I D lines render this possibility unlikely. Instead, HD 61005 may be embedded in a more typical warm, low-density cloud that introduces secular perturbations to dust grain orbits. This mechanism can significantly distort the ensemble disk structure within a typical cloud crossing time. For a counterintuitive relative flow direction--parallel to the disk midplane--we find that the structures generated by these distortions can very roughly approximate the HD 61005 morphology. Future observational studies constraining the direction of the relative interstellar medium flow will thus provide an important constraint for future modeling. Independent of the interpretation for HD 61005, we expect that interstellar gas drag likely plays a role in producing asymmetries observed in other debris disk systems, such as HD 15115 and Delta-Velorum.
description: 18 pages, 17 figures; Accepted to ApJ: 26 October 2009
The relationship between various pupil characteristics and performance on mathematics laboratories
Creators: name: Dilley, Grace
Publisher: name: University of British Columbia
Year: 2010

description: The purpose of this study was to examine the relationship between certain pupil characteristics and performance on mathematics laboratories. The four classes of grade six students involved in the study were classified by sex, field-dependence-independence, reflective-impulsive tempo, past performance in mathematics, present performance in mathematics, and intelligence. Eight mathematics laboratories designed and used in the study were categorized topically into number theory or geometry laboratories. Each laboratory activity was designed to allow pupils to manipulate materials while exploring an idea and collecting data. In part two of a laboratory activity, which included a test section, pupils were required to analyze data, make a prediction, and verify the prediction using manipulative materials before extending a pattern or rule. Laboratories were randomly assigned to classes. Results showed that all the selected characteristics except sex had a significant relationship with performance on mathematics laboratories. Sex showed a significant relationship only to the geometry laboratories. An analysis of covariance was performed using past achievement as the covariate. The results indicated that there was a significant difference in performance only on the geometry laboratories between boys and girls and between field-dependent and field-independent students. The differences were found to be in favour of the girls and the field-independent students. The results of this study suggested that further research is necessary to determine the most effective means of using mathematics laboratories.
Anion height dependence of Tc for the Fe-based superconductor
Creators: name: Mizuguhci, Y.
name: Hara, Y.
name: Deguchi, K.
name: Tsuda, S.
name: Yamaguchi, T.
name: Takeda, K.
name: Kotegawa, H.
name: Tou, H.
name: Takano, Y.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We have established a plot of the anion height dependence of Tc for the typical Fe-based superconductors. The plot appeared a symmetric curve with a peak around 1.38 A. Both data at ambient pressure and under high pressure obeyed the unique curve. This plot will be one of the key strategies for both understanding the mechanism of Fe-based superconductivity and search for the new Fe-based superconductors with higher Tc.
description: 13 pages, 4 figures
Additional file 1 of Altering the fatty acid profile of Yarrowia lipolytica to mimic cocoa butter by genetic engineering of desaturases
Creators: name: Konzock, Oliver
name: Matsushita, Yuika
name: Zaghen, Simone
name: Sako, Aboubakar
name: Norbeck, Joakim
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified

description: Additional file 1. Supplementary figures and list of Strains, Primers, and DNA sequences used in this study.
КЛИНИЧЕСКИЙ СЛУЧАЙ СИНДРОМА ИЦЕНКО-КУШИНГА
Creators: name: Негматова, Гулзода
name: Рустамова, Малика
name: Хосилова, Нилуфар
Publisher: name: Zenodo
Year: 2024

description: Первое описание циклической формы гиперкортицизма было опубликовано в конце 50-х годов прошлого века [1], однако интерес к синдрому Кушинга перемежающего течения не исчезает и в настоящие время. Среди возможных причин данного состояния выделяют дисфункцию гипоталамуса, патологическую реакцию кортикотропных клеток на нейротрансмиттеры (такие как кортиколиберин, дофамин, нейроэпинефрин, серотонин, γ-аминомасляную кислоту), спонтанное кровоизлияние в опухоль гипофиза с последующим нарушением синтеза гормонов кортикотрофами, патологию регуляторных механизмов отрицательной обратной связи в системе гипоталамус-гипофиз-надпочечники, некоторые другие. Точные механизмы возникновения периодов, сопровождающихся  гиперкортицизмом, сменяющихся нормализацией гормональной секреции, еще предстоит выяснить [2].
SHAPE-ID Toolkit Resources - Guide to Participatory Foresight Tools for Inter- and Transdisciplinary Research
Creators: name: SHAPE-ID
Publisher: name: Zenodo
Year: 2021
Subjects: Interdisciplinary, Transdisciplinary, Collaborative research, Integration, Art Humanities and Social Sciences, Foresight, Participation

description: This guide provides information about participatory foresight tools that can be used in inter- and transdisciplinary research.
title: The role of plant biodiversity in modifying the structure and functioning of higher tropic Levels in species-rich forests
title: Die Rolle von Pflanzen-Biodiversität für die Struktur und das Funktionieren von höheren trophischen Ebenen in artenreichen Wäldern
titleType: AlternativeTitle
Creators: name: Schuldt, Andreas
Publisher: name: Medien- und Informationszentrum, Leuphana Universität Lüneburg
Year: 2015
Subjects: subject: Biodiversity
subject: Forest
subject: Biodiversität
subject: Wald
classificationCode: 333.7
subject: 333.7 Natürliche Ressourcen, Energie und Umwelt

description: This thesis makes an important contribution to better understanding biodiversity and ecosystem function relationships across trophic levels in forests - aspects that are still underrepresented in BEF research. Ongoing biodiversity loss can be expected to change important trophic interaction pathways in these ecosystems, making increased efforts in exploring the mechanisms underlying, and the drivers determining, the impact of trophic complexity on the relationships between biodiversity and ecosystem functioning a crucial objective for holistic approaches to BEF research.
description: Diese Habilitationsschrift liefert einen wichtigen Beitrag zum besseren Verständnis von Biodiversität-Ökosystem-Beziehungen in Wäldern über trophische Ebenen hinweg - Aspekte, die in der Biodiversitäts-Ökosystemfunktions-Forschung immer noch unterrepräsentiert sind. Weiterer Biodiversitätsverlust wird vermutlich wichtige trophische Interaktionswege in diesen Ökosystemen verändern. Damit kommt der weiteren Erforschung der Mechanismen und treibenden Kräfte, welche den Einfluss trophischer Komplexität auf Beziehungen zwischen Biodiversität und dem Funktionieren von Ökosystemen bestimmen, eine wesentliche Bedeutung für holistische Biodiversitäts-Ökosystemfunktions-Forschung zu.
MARKET’S POLITICAL PREFERENCES: AN ANALYSIS OF MARKET RETURNS AND REALIZED VOLATILITY DURING PRESIDENTIAL ELECTIONS
Creators: name: Vadillo, Maria Daniela
Publisher: name: University of Chicago
Year: 2023

description: Markets and politics are intimately linked. Moreover, the extensive lobbying practices in the US evidence the interest of firms in political outcomes. Some companies go as far as to donate to political campaigns. On the short-term,these donations can signal political leanings and a company’s preference for a particular party to be in power. Hence, it is worth asking whether a firm’s political leaning is a determining factor in their stocks performance, and whether the market prefers a particular leaning over another, especially around the most important electoral event in the US: presidential elections. In this paper, we set out to examine market preferences over companies’ political leanings in the immediate dates after a presidential election takes place. Our hypothesis is that, under normal economic circumstances, markets favor companies who lean toward republican candidates, but under economic stress periods such as recessions, the market is less favorable toward such companies. I look at daily stock prices for a sample of public companies associated with PACs to determine if their stock returns are affected by the companies’ political leaning. I find that election outcomes affect stock returns, but there effects are usually the same regardless of political leaning. The signs of the effects over the post-event window, leading us to conduct a second study to evaluate the volatility of the stocks’ returns. We find democrat-leaning and neutral stocks have higher frequency of significant changes in volatility, while republican stocks are relatively stable, suggesting markets prefer companies that lead republican. The only exception is the 2008 election, where changes in volatility are significant for all stocks regardless of political leaning, indicating shifting preferences probably caused by the recession environment.
title: Kunst- und Kulturproduktion im Bezugsrahmen von Pierre Bourdieus Theorie und die kultursoziologische Analyse sozialer Bewegungen
title: Art- and cultural production in relation to Pierre Bourdieu´s theory and cultural sociological analysis of social movements
titleType: AlternativeTitle
Creators: name: Kastner, Jens
Publisher: name: Medien- und Informationszentrum, Leuphana Universität Lüneburg
Year: 2020
Subjects: subject: Cultural Production
subject: Social Movement
subject: Kunstproduktion
subject: Bourdieu, Pierre
subject: Soziale Bewegung
classificationCode: 700
subject: 700 Künste; Bildende und angewandte Kunst

description: Collection of papers to several questions in art- and cultural production in relation to Pierre Bourdieu´s theory and cultural sociological analysis of social movements.
description: In der vorliegenden Textsammlung werden verschiedene kunst- und kultursoziologische Fragestellungen behandelt. Grundlage und Zentrum der Beiträge bildet die Kultur- und Sozialtheorie Pierre Bourdieus. Die wichtigsten Konzepte und Begrifflichkeiten Bourdieus werden anhand unterschiedlicher theoretischer Problematiken wie auch am Beispiel praktisch-künstlerischer Arbeiten diskutiert. Dabei wird ein Verständnis der Bourdieu´schen Kunstsoziologie als Kultursoziologie vertreten, das in Die ästhetische Disposition ausgeführt wird.
Zum Wandel der Diskussion über personale Bildungsdispositionen seit 1945
Creators: name: Oelerich, Carina
Publisher: name: Medien- und Informationszentrum, Leuphana Universität Lüneburg
Year: 2004
Subjects: Intelligence
Kognition
Intelligenz
Bildungsforschung
Begabung
Begriff
Kognitionsforschung

description: Ausgangspunkt für diese Arbeit ist der Aufsatz „Vom statischen zum dynamischen zum statischen Begabungsbegriff?“ des Psychologen Franz E. Weinert von 1984, in welchem er nicht nur auf die immer wieder thematisierte „Ideologie-Anfälligkeit“ der individuellen Auffassung von Begabung hinweist, sondern auch die weiter reichende These aufstellt, dass die Beantwortung der „eminent wichtige[n] Fragen nach den Möglichkeiten und Grenzen der Bildbarkeit des Menschen“ insgesamt zeitgeistabhängig sei. Weinert konstatiert das „Aufbrechen eines ungeheuren pädagogischen Optimismus“ in den 60er Jahren und seine Ablösung durch eine verstärkt erbtheoretisch orientierte Phase in den 70ern. Diesem hypothetischen Wandel der Diskussion über personale Bildungsdispositionen seit 1945 geht die vorliegenden Untersuchung nach, indem sie systematisch wissenschaftliche Aufsätze zu diesem Thema in der Zeitschrift Die Sammlung (1945-54) und der Zeitschrift für Pädagogik (1955-94) untersucht. Die Arbeit gliedert sich in drei Teile. Der erste theoretische Teil gibt einen einführenden Überblick über die für die Untersuchung relevanten Themenbereiche, Begriffe und Theorien. Im zweiten Teil wird der Forschungsansatz der Untersuchung methodologisch eingeordnet und das methodische Vorgehen ausführlich dokumentiert. Der dritte und letzte Teil beinhaltet die eigentliche Auswertung der Untersuchung. Hier werden die Ergebnisse dargestellt und interpretiert. Die These Weinerts zur Zeitgeistabhängigkeit der Auffassungen über personale Bildungsdispositionen wird durch die Ergebnisse der Untersuchung insofern bestätigt, als dass es Veränderungen in der Diskussion gibt, die sich nicht auf entsprechende Veränderungen des wissenschaftlichen Erkenntnisstandes zurückführen lassen. Die von Weinert angeführte „zweimalige wissenschaftliche Umorientierung“ in den 60er und 70er Jahren kann für die Diskussion in der ZFPÄD allerdings nicht behauptet werden.