cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
BARRIERS TO MODERN CONTRACEPTIVE USE AMONG COASTAL WOMEN: A MIXED-METHODS STUDY IN PANGKAJENE ISLANDS, INDONESIA
Creators: name: Dian Eka Kusuma Wardani
name: Ahmad Syaekhu
name: Dety Djunita Sulandjari
name: Irma
name: Hasta Handayani Idrus
Publisher: name: Zenodo
Year: 2024
Subjects: Family Planning, Coastal Communities, Husband Support, Modern Contraception, Family Planning Education.

description: Abstract

Background: Indonesia's family planning programme has been successful in reducing birth rates, but its implementation in coastal areas still faces challenges. This study aimed to identify barriers to accessing family planning education and information needs to increase the use of modern family planning, particularly IUDs, among coastal women. Methods: The research design used quantitative-qualitative mixed-methods in Pitusunggu Village, Pangkajene Islands Regency. Data were collected through a survey of 105 male respondents to assess husband support for family planning. Qualitative data were obtained through focus group discussions (FGDs) with married men, productive-age women, family planning cadres, and community leaders. Results: Most husbands (95%) agreed to family planning, but only 31% actively discussed and 27% were involved in family planning decision-making. FGDs revealed a lack of comprehensive understanding of modern contraceptive methods and their side effects. Key barriers include the stigma of family planning as a woman's business, fear of side effects, and difficult geographical access. Coastal women prefer injectable contraceptive methods (44.5%) and implants (39.6%). Conclusion: Unsupportive husbands and incomprehensive understanding are the main barriers to accessing family planning education in coastal areas. A more comprehensive and culturally sensitive education model is needed to increase men's participation and use of modern family planning. Further research on more practical male contraceptive methods is also recommended.
Synthetic and mechanistic investigation of new radical
processes: reaction of organic azides with group-XIII
Lewis acids
Creators: name: Bencivenni, Giorgio <1978>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2008
Subjects: CHIM/06 Chimica organica

description: Dichloroindium hydride revealed to be a valid alternative to tributyltin hydride for radical
reduction of organic (alkyl, aryl, acyl, solfonyl) azides. The new approach entails mild reaction
conditions and provides high yields of the corresponding amines and amides, also showing high
degrees of selectivity. The system dichloroindium hydride / azides can be utilised in fivemembered
ring closures of g-azidonitriles, as a new source of aminyl radicals for the attractive
synthesis of interesting amidine compounds in the absence of both toxic reagents and tedious
purification procedures. Allylindium dichloride seems a good substitute for dichloroindium
hydride for generation of indium centred radicals under photolytic conditions, since it allows
allylation of electrophilic azides (e.g. phenylsulfonyl azide) and halogen or ester δ-substituted
azides, the latter through a 1,5-H transfer rearrangement mechanism. Evidences of the radical
nature of the reactions mechanism were provided by ESR spectroscopy, furthermore the same
technique, allowed to discover that the reaction of azides with indium trichloride and other group
XIII Lewis acids, in particular gallium trichloride, gives rise to strongly coloured, persistent
paramagnetic species, whose structure is consistent with the radical cation of the head-to-tail
dimer of the aniline corresponding to the starting azide.
The strong-coupling limit of a Kondo spin coupled to a mesoscopic quantum dot: effective Hamiltonian in the presence of exchange correlations
Creators: name: Rotter, Stefan
name: Alhassid, Y.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We consider a Kondo spin that is coupled antiferromagnetically to a large chaotic quantum dot. Such a dot is described by the so-called universal Hamiltonian and its electrons are interacting via a ferromagnetic exchange interaction. We derive an effective Hamiltonian in the limit of strong Kondo coupling, where the screened Kondo spin effectively removes one electron from the dot. We find that the exchange coupling constant in this reduced dot (with one less electron) is renormalized and that new interaction terms appear beyond the conventional terms of the strong-coupling limit. The eigenenergies of this effective Hamiltonian are found to be in excellent agreement with exact numerical results of the original model in the limit of strong Kondo coupling.
description: 12+ pages, 4 figures
CIFRA National Survey: Uruguay October 1996
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: Total population: best Uruguay football (soccer) player; favorite celebrities; reliability of various companies and institutions; car ownership details; security and safety measures; most important political issues for Uruguay in 1994; been to a spa or stayed at a hotel in past 2 years; outdoor activities; approval of various political figures and groups; rate kindness of political figures; Uruguay economy; rate areas that Uruguay performs well in; democracy in Uruguay; political corruption; family economic situation; consumption of meat in last week; consumption of noodles in last week, not including pasta rellena (stuffed pasta); Ñoquis del 29 participation (Gnocchi Day, a tradition to eat gnocchi on the 29th of every month); good and bad luck; superstition; election constitutional reforms; satisfaction with life; interest in politics; should citizens vote for constitutional reforms approved by Parliament; 1994 voting history. Montevideo: where do you go when you need a doctor; monthly medical fees payment. National Agency for Research and Innovation (ANII) Collection
School socio-economic context and student achievement in Ireland: an unconditional quantile regression analysis using PISA 2018 data
Creators: name: FLANNERY, DARRAGH
name: Gilleece, Lorraine
name: Clavel, Jose G.
Publisher: name: University of Limerick
Year: 2023
Subjects: Economics

description: Background: The existence of a multiplier, compositional or social context efect is debated extensively in the literature on school efectiveness and also relates to the wider issue of equity in educational outcomes. However, comparatively little attention has been given to whether or not the association between student achievement and school socio-economic composition may vary across the achievement distribution. Furthermore, with limited exception, comparatively little use has been made of unconditional quantile modelling approaches in the education literature. Methods: This paper uses Irish data from the Programme for International Student Assessment 2018 and employs ordinary least squares regression and unconditional quantile regression empirical approaches to examine the association between school socio-economic composition and achievement. Reading and mathematics achievement are used as outcome variables and models control for a rich set of school and student characteristics. Results: Findings from the ordinary least squares regression show that, on average, there is a signifcant negative relationship between school socio-economic disadvan?tage and student achievement in reading and mathematics having controlled from a range of individual and school-level variables. From a distributional perspective, unconditional quantile regression results show variation in the strength of the relationship between school socio-economic disadvantage and student achievement, particularly in reading, with a stronger association at the lower end of the achievement distribution. Findings illustrate the need to give nuanced consideration to how students with varying levels of achievement may experience a socio-economically disadvantaged context at school. Our fndings also draw attention to the beneft of examining variation in the association between achievement and explanatory variables across the achievement distribution and underscore the importance of moving beyond an exclusive focus on the mean of the distribution. Finally, we emphasise the importance of drawing population-level inferences when using the unconditional quantile regression method.
snpQT performance metrics
Creators: name: Duddy, WIlliam
name: Vasilopoulou, Christina
name: Wingfield, Ben
Publisher: name: Zenodo
Year: 2021

description: Performance metrics for snpQT. The output of nextflow's -with-report is provided for a small and a large cohort: applied to the 2,000 case-control ALS cohort demonstrated in our online documentation and also to a 12,319 case-control ALS cohort (all samples of dbGaP accession number: phs000101.v5.p1), respectively.
Asymmetric synthesis of benzylic and heterobenzylic amines
Sintesi asimmetrica di ammine benziliche ed eterobenziliche
Creators: name: Gualandi, Andrea <1978>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2008
Subjects: CHIM/06 Chimica organica

description: C2-Symmetrical, enantiopure 2,6-di[1-(1-aziridinyl)alkyl]pyridines (DIAZAPs) were prepared by a high-yielding, three-step sequence starting from 2,6-pyridinedicarbaldehyde and (S)-valinol or (S)-phenylglycinol. The new compounds were tested as ligands in palladium-catalyzed allylation of carbanions in different solvents. Almost quantitative yield and up to 99% enantiomeric excess were obtained in the reactions of the enolates derived from malonate, phenyl- and benzylmalonate dimethyl esters with 1,3-diphenyl-2-propenyl ethyl carbonate.
Asymmetric synthesis of 2-(2-pyridyl)aziridines from chiral 2-pyridineimines bearing a stereogenic center at the nitrogen atom was development. The envisioned route involves the addition of chloromethyllithium to the imine derived from 2-pyridinealdehyde and (S)-valinol, protected as O-trimethylsilyl ether. The analogous reaction performed on the imine derived from (S)-valine methyl ester gave the product containing the aziridine ring as well as the α-chloro ketone group coming from the attack of chloromethyllithium to the ester function. Other stereogenic alkyl substituents at nitrogen gave less satisfactory results. Moreover, the aziridination protocol did not work on other aromatic imines, e.g. 3-pyridineimine and benzaldimine, which are not capable of bidentate chelation. The N-substituent could not be removed, but aziridine underwent ring-opening by attack of nitrogen, sulfur, and oxygen nucleophiles. Complete or prevalent regioselectivity was obtained using cerium trichloride heptahydrate as a catalyst. In some cases, the N-substituent could be removed by an oxidative protocol.
The addition of organometallic (lithium, magnesium, zinc) reagents to 2-pyrroleimines derived from (S)-valinol and (S)-phenylglycinol gave the N-substituted-1-(2-pyrrolyl)alkylamines with high yields and diastereoselectivities. The (S,S)-diastereomers were useful intermediates for the preparation of enantiopure 1-[1-(2-pyrrolyl)alkyl]aziridines by routine cyclization of the β-aminoalcohol moiety and of (S)-N-benzoyl 1-[1-(2-pyrrolyl)alkyl]amines and their N-substituted derivatives by oxidative cleavage of the chiral auxiliary.
1-Allyl-2-pyrroleimines obtained from (S)-phenylglycinol and (S)-valinol underwent highly diastereoselective addition of allylmetal reagents, used in excess amounts, to give the corresponding secondary amines with concomitant allyl to 1-propenyl isomerisation of the 1-pyrrole substituent. Protection of the 2-aminoalcohol moiety as oxazolidinone, amide or Boc derivate followed by ring closing metathesis of the alkene groups gave the unsaturated bicyclic compound, whose hydrogenation afforded the indolizidine derivative as a mixture of separable diastereomers. The absolute configuration of the main diastereomer was assessed by X-ray crystallographic analysis.
Cooperative teleoperation systems
Creators: name: Bacocco, Rita <1972>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011
Subjects: ING-INF/04 Automatica

description: This thesis deals with the studies on the Cooperative Teleoperation Systems. The literature on cooperative teleoperation did not take into account
control architectures composed of pairs of wave-based bilateral teleoperators operating in
a shared environment. In this work The author two cooperative
control schemes based on wave variables by considering two pairs of single-master/single-slave devices collaborating to carry out operations in a shared remote environment are proposed. Such
architectures have been validated both with simulations and experimental tests.
Ch. 2 introduces a description of the two control architectures proposed and presents some
simulation results where the cooperative teleoperation systems evolve in free space and in
contact with a stiff wall.
In the Ch. 3 some experimental results which confirm the positive results of the control
schemes are illustred. Such results have been achieved by using a prototype custom built
at Laboratory of Automaiton and Robotics of University of Bologna, which is also illustrated in this chapter.
In Ch. 4 the problem of defining proper tools and procedures for an analysis, and possibly a comparison, of the performances of cooperative teleoperation systems is addressed.
In particular, a novel generalization of criteria adopted for classical (i.e. one master-one slave) teleoperators is presented and illustrated on the basis of the force-position and the
position-position cooperative control schemes proposed in Ch. 2, both from a transparency
and stability point of view, and by assuming a null time delay in the communication channel.
Stability of Strutinsky Shell Correction Energy in Relativistic Mean Field Theory
Creators: name: Niu, Y. F.
name: Liang, H. Z.
name: Meng, J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The single-particle spectrum obtained from the relativistic mean field (RMF) theory is used to extract the shell correction energy with the Strutinsky method. Considering the delicate balance between the plateau condition in the Strutinsky smoothing procedure and the convergence for the total binding energy, the proper space sizes used in solving the RMF equations are investigated in detail by taking 208Pb as an example. With the proper space sizes, almost the same shell correction energies are obtained by solving the RMF equations either on basis space or in coordinate space.
description: 9 pages, 4 figures
HANDWRITTEN TEXT RECOGNITION APPLIED ON BUSINESS INTELLIGENCE TOOLS
Creators: name: SARA EL HABBARI
name: M'HAMED-AMINE SOUMIAA
name: MOHAMED MANSOURI
Publisher: name: Zenodo
Year: 2024
Subjects: HTR, BI, IA, OCR, Text Recognition, Handprint, AWS, Python, Deep Learning, Artificial Neural Network.

description: Abstract

Carried by the wave of digitalization, companies are increasingly relying on the use of digitized documents, hence the necessity for high-performing handwriting recognition systems. Currently, artificial intelligence effectively fulfills this need through its text recognition and conversion techniques such as HTR (Handwritten Text Recognition), specifically tailored for handwritten texts. Unlike other IT domains, such as business intelligence, which still encounter difficulties in this area—specifically when it comes to extracting available data from scanned, handwritten documents in one or multiple languages. In this work, we utilized the HTR technique to address the challenge of extracting data from scanned handwritten forms into a BI tool, aiming to create a dashboard within this tool based on the data transcribed by the HTR.
Symmetry Reduction in Twisted Noncommutative Gravity with Applications to Cosmology and Black Holes
Creators: name: Ohl, Thorsten
name: Schenkel, Alexander
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: As a preparation for a mathematically consistent study of the physics of symmetric spacetimes in a noncommutative setting, we study symmetry reductions in deformed gravity. We focus on deformations that are given by a twist of a Lie algebra acting on the spacetime manifold. We derive conditions on those twists that allow a given symmetry reduction. A complete classification of admissible deformations is possible in a class of twists generated by commuting vector fields. As examples, we explicitly construct the families of vector fields that generate twists which are compatible with Friedmann-Robertson-Walker cosmologies and Schwarzschild black holes, respectively. We find nontrivial isotropic twists of FRW cosmologies and nontrivial twists that are compatible with all classical symmetries of black hole solutions.
description: LaTeX, 20 pages, no figures, minor modifications, reference added, to appear in JHEP
The impact of coronal mass ejections and flares on the atmosphere of the hot Jupiter HD189733b
Creators: name: Hazra, Gopal
name: Vidotto, Aline A.
name: Carolan, Stephen
name: D'Angelo, Carolina Villarreal
name: Manchester, Ward
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: High-energy stellar irradiation can photoevaporate planetary atmospheres, which can be observed in spectroscopic transits of hydrogen lines. For the exoplanet HD189733b, multiple observations in the Ly-$α$ line have shown that atmospheric evaporation is variable, going from undetected to enhanced evaporation in a $1.5$-year interval. Coincidentally or not, when HD189733b was observed to be evaporating, a stellar flare had just occurred 8h prior to the observation. This led to the question of whether this temporal variation in evaporation occurred due to the flare, an unseen associated coronal mass ejection (CME), or even the effect of both simultaneously. In this work, we investigate the impact of flares (radiation), winds, and CMEs (particles) on the atmosphere of HD189733b using 3D radiation hydrodynamic simulations of atmospheric evaporation that self-consistently include stellar photon heating. We study four cases: first- the quiescent phase of the star including stellar wind, second- a flare, third- a CME, and fourth- a flare that is followed by a CME. Compared to the quiescent case, we find that the flare alone increases the evaporation rate by only 25%, while the CME leads to a factor of 4 increase in escape rate. We calculate Ly-$α$ synthetic transits and find that the flare alone cannot explain the observed high blueshifted velocities seen in the Ly-$α$ observation. The CME, however, leads to an increase in the velocity of the escaping atmosphere, enhancing the transit depth at high blueshifted velocities. While the effects of CMEs show a promising potential to explain the blueshifted line feature, our models are not able to fully explain the blueshifted transit depths, indicating that they might require additional physical mechanisms.
description: Accepted for publication in MNRAS, 14 pages, 9 figures
New catalytic processes for the synthesis of adipic acid
Creators: name: Raabová, Katerina <1982>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011
Subjects: CHIM/04 Chimica industriale

description: The aim of my Ph.D. research was to study the new synthetic ways for the production of adipic acid.  
Three different pathways were studied: i) oxidation of cyclohexanone with molecular oxygen using Keggin – heteropolycompounds as the catalyst, ii) Baeyer – Villiger oxidation of cyclohexanone with hydrogen peroxide in the presence of two different heterogeneous catalysts, titanium silicalite and silica grafted decatungstate, iii) two step synthesis of adipic acid starting from cyclohexene via 1,2-cyclohexanediol. The first step was catalyzed by H2WO4 in the presence of the phase transfer catalyst, the oxidant was hydrogen peroxide. The second step, oxidation of 1,2 – cyclohexanediol was performed in the presence of oxygen and the heterogeneous catalyst – ruthenium on alumina.

The results of my research showed that:
i)	Oxidation of cyclohexanone with molecular oxygen using Keggin heteropolycompounds is possible, anyway the conversion of ketone is low and the selectivity to adipic acid is lowered by the consecutive reaction to from lower diacids. Moreover it was found out, that there are two mechanisms involved: redox type and radicalic chain-reaction autoxidation. The presence of the different mechanism is influenced by the reaction condition.
ii)	It is possible to perform thermally activated oxidation of cyclohexanone and obtain non negligible amount of the products (caprolactone and adipic acid). Performing the catalyzed reaction it was demonstrated that the choice of the reaction condition and of the catalyst plays a crucial role in the product selectivity, explaining the discrepancies between the literature and our research.
iii)	Interesting results can be obtained performing the two step oxidation of cyclohexene via 1,2-cyclohexanediol. In the presence of phase transfer catalyst it is possible to obtain high selectivity to alcohol with stoichiometric amount of oxidant. In the second step of the synthesis, the conversion of alcohol is rather low with modest selectivity to adipic acid
Composite operator approach to dynamical mass generation in the (2+1)-dimensional Gross-Neveu model
Creators: name: Khunjua, T. G.
name: Klimenko, K. G.
name: Zhokhov, R. N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Using a nonperturbative approach based on the Cornwall-Jackiw-Tomboulis (CJT) effective action $Γ(S)$ for composite operators, the phase structure of the simplest massless (2 + 1)-dimensional Gross-Neveu model is investigated. We have calculated $Γ(S)$ in the first order of the bare coupling constant $G$ and have shown that there exist three different specific dependences of $G\equiv G(Λ)$ on the cutoff parameter $Λ$, and in each case the effective action and its stationarity equations have been obtained. The solutions of these equations correspond to the fact that three different masses of fermions can arise dynamically and, respectively, three different nontrivial phases can be observed in the model.
description: 13 pages; Accepted for publication in IJMPA
Revealing single emitter spectral dynamics from intensity correlations in an ensemble fluorescence spectrum
Creators: name: Brokmann, Xavier
name: Marshall, Lisa
name: Bawendi, Moungi
Publisher: name: arXiv
Year: 2009
Subjects: subject: Optics (physics.optics)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: We show that the single emitter linewidth underlying a broadened ensemble emission spectrum can be extracted from correlations among the stochastic intensity fluctuations in the ensemble spectrum. Spectral correlations can be observed at high temporal and spectral resolutions with a cross-correlated pair of avalanche photodiodes placed at the outputs of a scanning Michelson interferometer. As illustrated with simulations in conjunction with Fluorescence Correlation Spectroscopy, our approach overcomes ensemble and temporal inhomogeneous broadening to provide single emitter linewidths, even for emitters under weak, continuous, broadband excitation.
description: 9 pages, 5 figures
SHAPE-ID Toolkit Resources - Co-create a Research Project
Creators: name: SHAPE-ID
Publisher: name: Zenodo
Year: 2021
Subjects: Interdisciplinary, Transdisciplinary, Collaborative research, Integration, Arts Humanities and Social Sciences, Co-creation

description: Increasingly, academic research and the broader generation and sharing of knowledge are taking place not just across different disciplines within research-performing organisations but among a much wider range of stakeholders who may have different forms of knowledge to offer. This requires both an acknowledgement and the active integration of different cultural and disciplinary perspectives. This publication compiles resources collected as part of the SHAPE-ID project to support researchers, funders/policymakers, research organisations and societal partners in co-creating inter- and transdisciplinary research projects.
A SysTematic seaRch fOr Dual Agns in meRgINg Galaxies (ASTRO-DARING) II: first results from long-slit spectroscopic observations
Creators: name: Zhang, Yang-wei
name: Huang, Yang
name: Bai, Jin-ming
name: Liu, Xiao-wei
name: Wang, Jian-guo
name: Dong, Xiao-bo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Building a large sample of kiloparsec (kpc)-scale dual active galactic nuclei (AGNs) amongst merging galaxies is of vital importance to understand the co-evolution between host galaxies and their central super massive black holes (SMBHs). Doing so, with just such a sample, we have developed an innovative method of systematically searching and identifying dual AGNs of amongst kpc scale merging galaxies and selected 222 candidates at redshifts $\leqslant$ 0.25. All the selected candidates have FIRST radio detection and at least one of two cores previously revealed as AGN spectroscopically. We report the first results from A SysTematic seaRch fOr Dual Agns in meRgINg Galaxies (ASTRO-DARING), which consist of spatially resolved long-slit spectroscopic observations of 41 targets selected from our merging galaxies sample carried out between November 2014 and February 2017, using the Yunnan Faint Object Spectrograph and Camera (YFOSC) mounted on the 2.4 meter telescope in Lijiang of Yunnan Observatories. Of these 16 are likely dual AGNs and 15 are newly identified. The efficiency of ASTRO-DARING is thus nearly 40 per cent. With this method, we plan to build the first even sample of more than 50 dual AGNs constructed using a consistent approach. Further analysis of the dual AGN sample shall provide vital clues for understanding the co-evolution of galaxies and SMBHs.
description: 30 pages, 61 figures, accepted by AJ
A SysTematic seaRch fOr Dual Agns in meRgINg Galaxies (ASTRO-DARING) III: results from the SDSS spectroscopic surveys
Creators: name: Zhang, Yang-wei
name: Huang, Yang
name: Bai, Jin-ming
name: Liu, Xiao-wei
name: Wang, Jian-guo
name: Dong, Xiao-bo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: As the third installment in a series systematically searching dual active galactic nuclei (AGN) amongst merging galaxies, we present the results of 20 dual AGNs found by using the SDSS fiber spectra. To reduce the flux contamination from both the fiber aperture and seeing effects, the angular separation of two cores in our merging galaxy pairs sample is restricted at least larger than 3 arcsec. By careful analysis of the emission lines, 20 dual AGNs are identified from 61 merging galaxies with their two cores both observed by the SDSS spectroscopic surveys. 15 of them are identified for the first time. The identification efficiency is about 32.79$\%$ (20/61), comparable to our former results (16 dual AGNs identified from 41 merging galaxies) based on the long-slit spectroscopy. Interestingly, two of the 20 dual AGNs show two prominent cores in radio images and their radio powers show they as the radio-excess AGNs. So far, 31 dual AGNs are found by our project and this is the current largest dual AGN sample, ever constructed with a consistent approach. This sample, together with more candidates from ongoing observations, is of vital importance to study the AGN physics and the coevolution between the supermassive black holes and their host galaxies.
description: 14 pages, 26 figures, accepted by AJ
Trasmissione post-natale del citomegalovirus attraverso il latte materno al neonato VLBW
Creators: name: Capretti, Maria Grazia <1964>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2008
Subjects: MED/38 Pediatria generale e specialistica

description: Introduction
Postnatal human cytomegalovirus (CMV) infection is usually asymptomatic in term babies, while
preterm infants are more susceptible to symptomatic CMV infection. Breastfeeding plays a
dominant role in the epidemiology of transmission of postnatal CMV infection, but the risk factors
of symptomatic CMV infection in preterm infants are unknown.
Patients and Methods
Between December 2003 and August 2006, eighty Very Low Birth Weight (VLBW) preterm
infants (gestational age ≤ 32 weeks and birth weight < 1500 g), admitted to the Neonatal Intensive
Care Unit of St Orsola-Malpighi General Hospital, Bologna were recruited. All of them were
breastfed for at least one month.
During the first week of life, serological test for CMV was performed on maternal blood.
Furthermore, urinary CMV culture was performed in all the infants in order to exclude a congenital
CMV infection.
Urine samples from each infant were collected and processed for CMV culture once a week. Once
every 15 days a blood sample was taken from each infant to evaluate the complete blood count, the
hepatic function and the C reactive protein. In addition, samples of fresh breast milk were processed
weekly for CMV culture. A genetic analysis of virus variant was performed in the urine of the
infected infants and in their mother’s milk to confirm the origin of infection.
Results
We evaluated 80 VLBW infants and their 68 mothers. Fifty-three mothers (78%) were positive for
CMV IgG antibodies, and 15 (22%) were seronegative.
In the seronegative group, CMV was never isolated in breast milk, and none of the 18 infants
developed viruria; in the seropositive group, CMV was isolated in 21 out of 53 (40%) mother’s
milk.
CMV was detected in the urine samples of 9 out of 26 (35%) preterm infants, who were born from
21 virolactia positive mothers. Six of these infants had clinically asymptomatic CMV infection,
while 3 showed a sepsis-like illness with bradycardia, tachypnea and repeated desaturations. Eight
out of nine infants showed abnormal hematologic values.
The detection of neutropenia was strictly related to CMV infection (8/9 infected infants vs 17/53
non infected infants, P
Maser maps and magnetic field of OH 300.969+1.147
Creators: name: Caswell, J. L.
name: Kramer, B. Hutawarakorn
name: Reynolds, J. E.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The southern maser site OH 300.969+1.147 has been studied using the Long Baseline Array of the Australia Telescope National Facility. The 1665- and 1667-MHz hydroxyl ground-state transitions were observed simultaneously. A series of maps with tenth-arcsec spatial resolution, at velocity spacing 0.09 km/s, and in both senses of circular polarization, reveal 59 small diameter maser spots. The spots are scattered over 2-arcsec, coincident with a strong ultracompact HII region, at a distance of 4.3 kpc. 17 Zeeman pairs of oppositely polarized spots were found, all yielding magnetic field estimates towards us (negative), ranging from -1.1 to -4.7 mG, with a median value of -3.5 mG. Excited state masers of OH at 6035 MHz and 6030 MHz at this site also display Zeeman pairs revealing a magnetic field of -5.0 mG. Weak methanol maser emission is intermingled with the OH masers, but there is no detectable closely related water maser. The consistent magnetic field direction found within this site is a striking feature of several other maser sites associated with strong HII regions studied in comparable detail. We interpret the site as a mature region nearing the end of the brief evolutionary stage that can support maser emission.
description: 8 pages including 3 figures. This paper has been accepted for publication in Monthly Notices of the Royal Astronomical Society
Time evolution of spin singlet in static homogeneous exchange and magnetic fields
Creators: name: Kuplevakhsky, S. V.
name: Bengus, S. V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Within the framework of an idealized theoretical model, we study the effect of external static homogeneous exchange and magnetic field on the spin part of the singlet wave function of two electrons. We begin by revising the traditional (text- book) approach to the spin singlet. Basing our own approach solely on the property of invariance under rotations of the coordinate system and using the theory of spinor in- variants, we derive a generalized representation of the spin singlet whose main feature is that the spins are in mutually time-reversed states. We show that exactly this fea- ture predetermines the actual form of the Hamiltonian of interaction with the external field and stipulates time evolution of the singlet. Some applications of these results to the theory of superconductivity and spin chemistry are presented. In particular, it is shown that the case of ferromagnetic superconductors constitutes a good illustration of the validity of our quantum-mechanical consideration.
description: 14 pages
title: On estimating the signal dimension in tensorial PCA
Creators: name: Kösner, Christoph
Publisher: name: TU Wien
Year: 2023
Subjects: subject: Dimension reduction
subject: bootstrap

description: In Modellen mit latenten Variablen, in denen die Dimension der nicht-beobachtbaren Daten als niedriger angenommen wird als die Dimension der beobachtbaren, wird erstere oft per Faustregel festgelegt. In der Hauptkomponentenanalyse handelt es sich hierbei um die Anzahl der zu behaltenden Komponenten. In dieser Arbeit wurde ein neuartiger Bootstrap-Test für die niedrigeren Dimensionen von latenten Tensoren in einem fehlerbehafteten Tensor Modell entwickelt. Dabei handelt es sich um eine Verallgemeinerung einer Vektor-Bootstrap Methode, die eine sphärische Verteilung für den Fehlervektor annimmt. Der Test kann pro Tensorstufe angewandt werden und seine Test-Statistik basiert auf Eigenwerten einer tensoriellen Version der Kovarianz, die sich ebenfalls für jede Stufe errechnen lässt. Damit ist er stark verknüpft mit der tensoriellen Hauptkomponentenanalyse. Der Test wurde auf simulierten Daten angewandt, wo sich mittels eines Teile-und-herrsche-Verfahrens die korrekten Dimensionen der Tensoren bestimmen ließen, wenn die Varianz der Fehlerkomponenten nicht ein Vielfaches der Varianz der latenten Tensorkomponenten war. Außerdem wurde der Test auf einem Datensatz aus Graustufen-Bildern angewandt und damit die niedrigeren Dimensionen einer Komponentenmatrix errechnet.
description: In latent variable models, where the unobserved data is assumed to be of lower dimension than the observed, the low rank dimension is often determined by a rule of thumb. In principal component analysis (PCA), this number corresponds to the number of retained principal components. In this thesis, a new bootstrap test for the low rank dimension of latent tensorial data in a noisy tensor model is developed, which can be applied mode-wise. This test is a generalization of a vector bootstrap method, which assumes a spherical distribution for the random error vector. Its test statistic is based upon the eigenvalues of the tensor mode-covariances and is therefore related to tensorial PCA. For simulated data, it was demonstrated, that a divide and conquer approach based on the bootstrap test can compute the correct low rank dimension, when the variance of the error tensor components is below the variance of the data components. The test was also applied on a dataset of greyscale pictures to compute the lower dimensions of a component matrix.
Plug&Play subcarrier wave quantum key distribution with deep modulation
Creators: name: Bannik, Oleg I.
name: Moiseev, E. S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report a quantum key distribution using subcarrier wave encoding in Plug&Play configuration. Our detailed study shows how subcarrier encoding operates in a presence of Rayleigh back-scattering, chromatic dispersion and other experimental negative factors that occur in Plug&Play configuration. We propose and experimentally demonstrate a novel regime for the subcarrier wave encoding, where simultaneous detection of two logical states in a single basis is combined with robustness and simplicity of the original protocol. This deep modulation regime shows reliable quantum communication with losses up to 20 dB and promises a twice increase in secret key generation rate in comparison with the original subcarrier wave quantum key distribution in one-way or Plug&Play configurations.
description: 12 pages, 4 figures, 1 table
SHAPE-ID Toolkit Resources - Develop Collaborative Conditions
Creators: name: SHAPE-ID
Publisher: name: Zenodo
Year: 2021
Subjects: Interdisciplinary, Transdisciplinary, Collaborative Research, Integration, Art Humanities and Social Sciences, Research Teams

description: Collaborative inter- and transdisciplinary research don’t just happen by chance: it takes extra effort to build a successful team and establish effective working relationships when the group consists of individuals coming from different backgrounds, working cultures and knowledge traditions. This publication compiles resources collected as part of the SHAPE-ID project to support researchers, funders/policymakers, research organisations and societal partners in developing collaborative conditions.
Bosonic Spectral Function and The Electron-Phonon Interaction in HTSC Cuprates
Creators: name: Maksimov, E. G.
name: Kulic, M. L.
name: Dolgov, O. V.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In Part I we discuss accumulating experimental evidence related to the structure and origin of the bosonic spectral function in high-temperature superconducting (HTSC) cuprates at and near optimal doping. Some global properties of the spectral function, such as number and positions of peaks, are extracted by combining optics, neutron scattering, ARPES and tunnelling measurements. These methods give convincing evidence for strong electron-phonon interaction (EPI) with the coupling constant between 1-3 in cuprates near optimal doping. Here we clarify how these results are in favor of the Eliashberg-like theory for HTSC cuprates near optimal doping. In Part II we discuss some theoretical ingredients - such as strong EPI, strong correlations - which are necessary to explain the experimental results related to the mechanism of d-wave pairing in optimally doped cuprates. These comprise the Migdal-Eliashberg theory for EPI in strongly correlated systems which give rise to the forward scattering peak. The latter is further supported by the weakly screened Madelung interaction in the ionic-metallic structure of layered cuprates. In this approach EPI is responsible for the strength of pairing while the residual Coulomb interaction (by including spin fluctuations) triggers the d-wave pairing.
description: 59 pages, 38 figures, review article
THE EFFECT OF NATURAL FACTORS, FARMER PERFORMANCE, AND FARMER EVALUATION IN THE IMPLEMENTATION OF GAP FOR VEGETABLE CROPS IN PALOLO DISTRICT, SIGI REGENCY
Creators: name: Arifuddin Lamusa
Publisher: name: Zenodo
Year: 2024
Subjects: SEM-AMOS, Vegetable Crops, Farmer Performance, Crop Cultivation Techniques.

description: Abstract

This research is an analysis of GAP (Good Agricultural Practices) for vegetable crops, examining various aspects from site selection to post-harvest processes in Palolo District, Sigi Regency. Additionally, this study analyzes factors influencing the adoption of GAP in these vegetable crops. The 'Natural Factors' variable shows a very significant relationship with vegetable crop cultivation, contributing positively and substantially influencing the outcomes of vegetable cultivation, thereby enabling farmers to utilize natural occurrences such as rainfall and seasonal changes that occur annually. The 'Farmer Performance' variable also exhibits a very significant relationship with vegetable cultivation, providing a positive impact and substantial opportunities to add value to vegetable cultivation. This is achieved through the use of leftover vegetable matter as a means to enhance soil humus, thus affecting vegetable production. Apart from these factors, farmers implement various steps in the care of vegetable crops. The research proposal includes suggestions aimed at enhancing farmer participation and interest in vegetable crop cultivation techniques. The proposed improvements for farmers in the Palolo District are as follows: a. Maximizing the use of leftover plant materials as bokashi fertilizer in vegetable gardens to increase the production yields of the vegetables grown in Palolo District. b. Performing weekly evaluations to monitor the progress of the vegetable gardens. c. Each farmer manages different types of organic fertilizers and encourages the community to use leftover vegetable materials as organic fertilizer. d. Providing instructions to farming groups, such as conducting outreach and weekly evaluations of the cultivated vegetable plants.
title: ¿Qué podemos encontrar en la pielonefritis xantogranulomatosa?. Manifestaciones por imagen.
Creators: name: Atencia Ballesteros, Marta
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Ultrasound
subject: CT
subject: Conventional radiography
subject: Abdomen

description: Objetivos
Material y método
Resultados
Conclusiones
Bibliografía
description: Objetivos:
Mediante este trabajo se pretende revisar las manifestaciones radiológicas de la pielonefritis xantogranulomatosa (PX) mediante radiología simple,
ecografía,
urografía y TC,
y correlacionar dichos hallazgos con los datos...
The first cyclotron harmonic of 4U 1538-52
Creators: name: Rodes-Roca, J. J.
name: Torrejón, J. M.
name: Kreykenbohm, I.
name: Núñez, . Martínez
name: Camero-Arranz, A.
name: Bernabéu, G.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Cyclotron resonant scattering features are an essential tool for studying the magnetic field of neutron stars. The fundamental line provides a measure of the field strength, while the harmonic lines provide information about the structure and configuration of the magnetic field. Until now only a handful of sources are known to display more than one cyclotron line and only two of them have shown a series of harmonics. The aim of this work is to see the first harmonic cyclotron line, confirming the fundamental line at around 22 keV, thus increasing the number of sources with detected harmonic cyclotron lines. To investigate the presence of absorption or emission lines in the spectra, we have combined RXTE and INTEGRAL spectra. We modeled the 3-100 keV continuum emission with a power law with an exponential cut off and look for the second absorption feature. We show evidence of an unknown cyclotron line at around 47 keV (the first harmonic) in the phase-averaged X-ray spectra of 4U 1538-52. This line is detected by several telescopes at different epochs, even though the signal-to-noise ratio of each individual spectrum is low. We conclude that the line-like absorption is a real feature, and the most straightforward interpretation is that it is the first harmonic, thus making 4U 1538-52 the fifth X-ray pulsar with more than one cyclotron line.
description: 6 pages, 5 figures, accepted for publication in Astronomy and Astrophysics
Black Holes, AdS, and CFTs
Creators: name: Marolf, Donald
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This brief conference proceeding attempts to explain the implications of the anti-de Sitter/conformal field theory (AdS/CFT) correspondence for black hole entropy in a language accessible to relativists and other non-string theorists. The main conclusion is that the Bekenstein-Hawking entropy S_{BH} is the density of states associated with certain superselections sectors, defined by what may be called the algebra of boundary observables. Interestingly, while there is a valid context in which this result can be restated as "S_{BH} counts all states inside the black hole," there may also be another in which it may be restated as "$S_{BH}$ does not count all states inside the black hole, but only those that are distinguishable from the outside." The arguments and conclusions represent the author's translation of the community's collective wisdom, combined with a few recent results. For the proceedings of the WE-Heraeus-Seminar: Quantum Gravity: Challenges and Perspectives, dedicated to the memory of John A. Wheeler.
description: 21 pages, 2 figures, For the proceedings of the WE-Heraeus-Seminar: Quantum Gravity: Challenges and Perspectives, dedicated to the memory of John A. Wheeler; typos fixed
Overview of lattice calculations of the $x$-dependence of PDFs, GPDs and TMDs
Creators: name: Cichy, Krzysztof
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: For a long time, lattice QCD was unable to address the $x$-dependence of partonic distributions, direct access to which is impossible in Euclidean spacetime. Recent years have brought a breakthrough for such calculations when it was realized that partonic light-cone correlations can be accessed through spatial correlations computable on the lattice. Appropriately devised observables can be factorized into physical PDFs via a perturbative procedure called matching, analogous to the standard factorization of experimental cross sections. In this short review, aimed at a broader high-energy and nuclear physics community, we discuss the recent highlights of this research program. Key concepts are outlined, followed by a case study illustrating the typical stage of current lattice extractions and by a brief review of the most recent explorations. We finalize with a number of messages for the prospects of lattice determinations of partonic structure.
description: 12 pages, 2 figures; invited plenary talk at the Virtual Tribute to Quark Confinement and the Hadron Spectrum 2021, August 2-6, 2021