cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Evolution and interpolation of double parton distributions using Chebyshev grids
Creators: name: Diehl, Markus
name: Nagar, Riccardo
name: Ploessl, Peter
name: Tackmann, Frank J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Double parton distributions are the nonperturbative ingredients needed for computing double parton scattering processes in hadron-hadron collisions. They describe a variety of correlations between two partons in a hadron and depend on a large number of variables, including two independent renormalization scales. This makes it challenging to compute their scale evolution with satisfactory numerical accuracy while keeping computational costs at a manageable level. We show that this problem can be solved using interpolation on Chebyshev grids, extending the methods we previously developed for ordinary single-parton distributions. Using an implementation of these methods in the C++ library ChiliPDF, we study for the first time the evolution of double parton distributions beyond leading order in perturbation theory.
description: 48 pages, 17 figures. v2: added figure 3, added clarifications, corrected typos
Dino Risi’s Il sorpasso: (Im)mobility in the Economic Boom Years
Creators: name: Boggio, Cecilia
Publisher: name: mediAzioni
Year: 2023

description: Through a detailed description and analysis of Il sorpasso by Dino Risi (1962), one of the most popular films of the “Italian comedy of the boom years” genre, my study explores the notion of mobility in the Italian society of the economic boom years (1958-1963). In those years, the car worked as the engine of the economic prosperity, which was first set in motion and then fueled by the car factories of the North of Italy, and because it was one of the first products to be mass-produced, it also served as the image of the first Italian consumer-driven society. This is probably the reason why a car, the Lancia “America”, is at the center of the film narrative. First, I address the issue of the transposition from Italian into French, Spanish and English of the film title to highlight what themes of the film narrative are foregrounded by the recreation of the title for different cultures. Then, starting from the original Italian title, Il sorpasso –a far richer and more complex title than any of its transpositions in other languages—I investigate the different meanings of “mobility” conveyed by the film to demonstrate that the contrast between the fast-paced but purposeful camerawork and the main character’s frantic and aimless driving creates a visual representation of the struggle to adjust to the rapid process of cultural and social transformation of the late 1950s and early 1960s many Italians experienced.
description: mediAzioni, V. 37 (2023)
Προστασία δεδομένων προσωπικού χαρακτήρα των ληπτών υπηρεσιών υγείας στο χώρο του δημόσιου νοσοκομείου στο πλαίσιο αντιμετώπισης της πανδημίας του κορωνοϊού (COVID-19)
Creators: name: Τσακιρίδου, Μαρία Πρόδρομου
Publisher: name: Aristotle University of Thessaloniki
Year: 2022
Subjects: Προσωπικά δεδομένα
Δεδομένα υγείας
Ιδιωτικότητα
Personal data
Health data
Privacy

description: Στην παρούσα εργασία αναλύσαμε τα ζητήματα προστασίας προσωπικών δεδομένων που ανακύπτουν κατά τη διαδικασία συλλογής και επεξεργασίας προσωπικών δεδομένων των πολιτών στα πλαίσια της διαχείρισης της πανδημίας από τα ελληνικά δημόσια νοσοκομεία υπό το πρίσμα της ισχύουσας εθνικής και ευρωπαϊκής νομοθεσίας. Συγκεκριμένα, εξετάσαμε τη διαδικασία συλλογής και επεξεργασίας προσωπικών δεδομένων, συμπεριλαμβανομένων των «ευαίσθητων» προσωπικών δεδομένων (υγείας), των ασθενών Covid-19 από τα δημόσια Νοσοκομεία της χώρας, αλλά και το πώς θα πρέπει αυτά να προστατεύονται υπό το καθεστώς των διατάξεων του Γενικού Κανονισμού Προστασίας Δεδομένων (ΓΚΠΔ) και του εθνικού Νόμου 4624/2019. Τέλος, επιχειρήθηκε μία στάθμιση ανάμεσα στα εν προκειμένω συγκρουόμενα δικαιώματα, της προστασίας της ιδιωτικότητας και των δεδομένων προσωπικού χαρακτήρα από τη μία και της προστασίας της δημόσιας υγείας ως έκφανσης του δημοσίου συμφέροντος από την άλλη.
description: In the present work we analyzed the issues of personal data protection that arise during the process of collection and processing of personal data of citizens in the context of pandemic management by Greek public hospitals in the light of current national and European legislation. Specifically, we examined the process of collecting and processing personal data, including «sensitive» personal (health) data, of Covid-19 patients from the public hospitals of the country, but also how they should be protected under the provisions of the General Data Protection Regulation (GDPR) and national law 4624/2019. Finally, a balance was struck between the conflicting rights of protection of privacy and personal data on the one hand and the protection of public health as a manifestation of the public interest on the other.
Pharmacoepidemiology and Drug Safety's special issue on validation studies
Creators: name: Stürmer, T.
name: Lund, J.L.
name: Chun, D.S.
Publisher: name: John Wiley and Sons Ltd
Year: 2019

description: Administrative claims and other routinely collected data provide the foundation for many drug utilization, safety, and effectiveness studies. These databases provide a rich source of timely health care information on large, well‐defined populations. Yet information contained in these databases is generally captured using standardized systems, summarizing complex medical histories, clinical diagnoses, and services and therapies provided to patients. Thus, carefully designed validation studies that evaluate the accuracy of coded algorithms to identify health‐related exposures, outcomes, and covariates against a reference standard are an essential component for demonstrating the validity of their use for research purposes.
Risky Sexual Behaviours among Night School Students in Arada Sub-City
Creators: name: Molla, Getachew
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: Background: Risky sexual behaviors are any behavior that increases the probability of adverse sexual and reproductive health. Adolescent and young aged 15–24 years are at particularly high risky sexual behaviors. Risky sexual behaviors predispose adolescent and young people to a variety of sexually associated problems. Objectives: The objective of the study is to assess the magnitude of risky sexual behaviors and its associated factors among night school students in Arada sub-city 2017. Methods: A cross-sectional quantitative study design method complemented with qualitative method carried out among night school students in Arada Sub-City, Addis Ababa, Ethiopia. Five hundred forty individuals were selected from a total of 3,641 by multi- stage sampling method. The data were collected by using pre-tested structured self-administered questionnaire. Data were entered into Epi-Info version 7 and analyzed using SPSS version 24 software. Result: A total of 540 night school students were enrolled in the study with response rate of 514 (95.2%) among those 317(61.7%) of the study participants were females; 342(66.5%) the study participants had sexual experience and only 78 were married. Among the sexually active students 139(40.4%) reported that they had two or more sexual partners in their lifetime, 127 (37.1%) reported sexual contact with casual person, 26(7.6%) with commercial sex workers and 222 (64.9%) had risky sexual behavior. Multivariable logistic regression analyses showed that males are 1.676 times more likely to have risky sexual behaviors than females [AOR= 1.676 (95% CI: 1.026-2.741)] and being in 15-19 age group 0.593 times less likely to have risky sexual behaviors than 20-24 years [AOR= 0.593 (95% CI: 0.363- 0.739)]. Similarly being single and divorced participants were 3.326(1.737-6.368) and 3.939(2.043-7.595) with 95% CI times higher risky behaviors respectively. Practicing sex after drinking alcohol were [AOR = 4.858 (95% CI: 2.314-10.196)] and sex after watching pornography were [AOR = 3.964 (95% CI: 1.559-10.078)] associated with risk sexual behaviors. Conclusion: Significant number of night school students had two or more sexual partners and sex with sex workers had risky sexual behavior that might predispose them to different sexual and reproductive health problems. Reducing risky sexual behavior among night school students can be achieved through multi-sectored responses in the school.
Classification of the sign of the critical Casimir force in two dimensional systems at asymptotically large separations
Creators: name: Rajabpour, M. A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We classify the sign of the critical Casimir force between two finite objects separated by a large distance in the two dimensional systems that can be described by conformal field theory (CFT). In particular, we show that as far as the smallest scaling dimension present in the spectrum of the system is smaller than one, the sign of the force is independent of the shape of the objects and can be determined by the elements of the modular $S$-matrix of the CFT. The provided formula for the sign of the force indicates that the force is always attractive for equal boundary conditions independent of the shape of the objects. However, different boundary conditions can lead to attractive or repulsive forces. Using the derived formula, we prove the known results regarding the Ising model and the free bosons. As new examples, we give detailed results regarding the Q=3-states Potts model and the compactified bosons. In particular, for the latter model we show that Dirichlet boundary condition does not always lead to an attractive force.
description: V2: 7 pages and 1 Figure!
Lepton Flavor Violation from diphoton effective interactions
Creators: name: Fortuna, Fabiola
name: Marcano, Xabier
name: Marín, Marcela
name: Roig, Pablo
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We consider charged lepton flavor violating transitions mediated by the diphoton effective interactions $\ell_i\ell_jγγ$ and explore which processes can probe them better. Our analysis includes single and double radiative decays, $\ell_i\to\ell_jγ(γ)$, as well as $\ell_i\to\ell_j$ conversions in nuclei for all possible flavor combinations, which we compute for the first time for $\ell\toτ$ conversions in this framework. We find that currently the best limits are provided by the loop-induced $\ell_i\to\ell_jγ$ processes, while the best future sensitivities come from $μ\to e$ conversion in aluminum and from potential $τ\to \ellγγ$ searches at Belle II or at the Super Tau Charm Facility. We also motivate the search for $μ\to eγγ$ at the Mu3e experiment as a complementary probe of these operators.
description: 11+6 pages, 4 figures. Extended discussion. Matches published version
Οι επιπτώσεις του τουρισμού στις περιοχές Natura 2000 και οι αλλαγές που επέφερε η Πανδημία σχετικά με την προστασία τους. Η περίπτωση της νήσου Σκιάθου
Creators: name: Ταμπάκης, Αντώνιος Στυλιανού
Publisher: name: Aristotle University of Thessaloniki
Year: 2022
Subjects: Κουκουναριές
Προστατευόμενες περιοχές
Δήμος Σκιάθου
Νatura 2000
Covid 19
Koukounaries
Protection areas
Municipality of Skiathos
Natura 2000

description: Η Σκιάθος εξαρτάται έντονα σε οικονομικό επίπεδο από την τουριστική δραστηριότητα, με τη θάλασσα και τον ήλιο να αποτελούν δύο σημαντικούς παράγοντες για τις αφίξεις επισκεπτών στο νησί. Μια από τις γνωστότερες παράλιες του νησιού είναι οι Κουκουναριές, με κύριο χαρακτηριστικό, το οποίο έλκει τους τουρίστες, τη φυσική ομορφιά του δάσους των Κουκουναριών. Η θεσμοθέτηση των δυο Προστατευόμενων Περιοχών, με στόχο την προστασία και διατήρηση περιοχών με ιδιαίτερη φυσική ομορφιά και ιδιαίτερα χαρακτηριστικά, αποτελεί ευκαιρία για βιώσιμη ανάπτυξη που σέβεται τη φύση και τον άνθρωπο. Η περίοδος του Cοvid 19 επηρέασε σημαντικά τον τουρισμό και τους κατοίκους του νησιού με τις περικοπές στα έξοδα και τη μείωση της τουριστικής δραστηριότητας λόγω των περιορισμών στις μετακινήσεις. Στην παρούσα εργασία γίνεται προσπάθεια διερεύνησης και καταγραφής των απόψεων των κατοίκων, σχετικά με την ποιότητα ζωής τους στο νησί , τη διαβίωσή τους κατά την περίοδο του COVID 19 και τη στάση τους προς τις περιοχές Natura 2000. Η συγκεκριμένη έρευνα πραγματοποιήθηκε μέσω προσωπικών συνεντεύξεων με κύριο εργαλείο το ερωτηματολόγιο.
description: The economy of Skiathos is heavily based on the arrival of tourists with the main reason for arrival being the sea, sand, and sun. The most renowned beach on the island is Koukounaries with the main characteristic being the beauty of the landscape. The creation of two protected areas to protect and maintain areas with natural beauty and unique characteristics can be an opportunity to create long-lasting and sustainable management with respect to both nature and local communities. The period of the Covid-19 had a significant impact on the everyday life of the island’s citizens with limitations on transportation and work opportunities. In this paper, we explore and categorize the opinions of the residents concerning living conditions during the Covid-19 period and protected areas of the Natura 2000 network. Data collection was made with personal interviews with the use of a questionnaire.
Real time lattice correlation functions from differential equations
Creators: name: Gasparotto, Federico
name: Weinzierl, Stefan
name: Xu, Xiaofeng
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We report on an exact calculation of lattice correlation functions on a finite four-dimensional lattice with either Euclidean or Minkowskian signature. The lattice correlation functions are calculated by the method of differential equations. This method can be used for Euclidean and Minkowskian signature alike. The lattice correlation functions have a power series expansion in $1/\sqrtλ$, where $λ$ is the coupling. We show that this series is convergent for all non-zero values of $λ$. At small coupling we quantify the accuracy of perturbative approximations. At the technical level we systematically investigate the interplay between twisted cohomology and the symmetries of the twist function.
description: 31 pages, v2: version to be published
Ανάλυση χρηματοοικονομικών καταστάσεων και εκθέσεων ελέγχου πριν και μετά τον covid-19
Creators: name: Πουτιού, Πολυξένη Ευαγγέλου
Publisher: name: Aristotle University of Thessaloniki
Year: 2022
Subjects: Χρηματοοικονομικές καταστάσεις
Ποιότητα ελέγχου
Πανδημία
Kam – key audit matters
Big 4
Financial reporting quality

description: Η πανδημία του Covid 19 εκτός από την έναρξη μιας παγκόσμιας υγειονομικής κρίσης, αποτέλεσε κατ επέκταση, και την αρχή μιας ακόμα παγκόσμιας κρίσης, αυτή τη φορά οικονομικής φύσεως. Με αφορμή αυτό, στην παρούσα εργασία γίνεται προσπάθεια μελέτης και κατανόησης των επιπτώσεων που η πανδημία έφερε στην παγκόσμια αλλά και στην εγχώρια οικονομία. Με τη χρήση αριθμοδεικτών πραγματοποιείται σύγκριση στα οικονομικά στοιχεία των ελληνικών εισηγμένων στο χρηματιστήριο επιχειρήσεων μεταξύ των ετών 2019 και 2020, ενώ ταυτόχρονα συγκρίνονται και οι εκθέσεις των εξωτερικών ελεγκτών. Παράλληλα με τα παραπάνω, η εργασία αυτή προσπαθεί να μελετήσει και ένα ακόμα ζήτημα, το οποίο διακλαδώνεται και αποτελεί τα ερευνητικά της ερωτήματα, τα οποία απαντώνται με τη χρήση της σουίτας στατιστικού λογισμικού spss. Αρχικά, τίθεται το ερώτημα, εάν το μέγεθος της ελεγκτικής εταιρίας σχετίζεται και επηρεάζει τον αριθμό των σημαντικών θεμάτων ελέγχου σε μια έκθεση και στη συνέχεια εάν η σχέση αυτή επηρεάστηκε από την έναρξη της πανδημίας.
description: The Covid 19 pandemic, in addition to starting a global health crisis, was by extension also the beginning of another global crisis, this time of an economic nature. On this occasion, in this paper an attempt is made to study and understand the effects that the pandemic brought to the global and also to the domestic economy. With the use of financial ratios, a comparison is made in the financial data of Greek companies listed on the stock exchange between the years 2019 and 2020, while at the same time the reports of the external auditors are compared. Alongside the above, this work tries to study one more issue, which branches out and constitutes its research questions, which are answered using the spss statistical software suite. First, the question arises, whether the size of the audit firm is related to and affects the number of key audit matters in a report, and then whether this relationship was affected by the onset of the pandemic.
Assessment of Practice of Post abortion Care Service among Government Health Centers in Addis Ababa
Creators: name: Beyene, Yeshiwass
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2011

description: Background: unsafe abortion is a major public health problem in many countries. A woman die every eight minutes somewhere in developing countries due to complications arising from unsafe abortion. A complication of unsafe abortion contributes to 13% of global maternal mortality. In Sub-Saharan Africa, abortion complications represent 20 to 50% of maternal morbidity and mortality. Unsafe abortion is the most common cause of maternal mortality, accounting for up to 32% of maternal deaths in Ethiopia Objective: The study was conducted to assess practice of post abortion Care Service among government health centers in Addis Ababa. Method: A facility based cross-sectional study was conducted in Addis Ababa from January to February 2011. A pre-tested structured questionnaire and assessment of supply & equipments were employed. A single proportion formula was used to calculate the sample size. Data were entered and analyzed by SPSS version.. Result: A total of three hundred fifty eight health professionals working on post abortion care in 24 government health centers were participated in the study Of 358 health professionals working on PAC Service 56% were between the age group of 20—30 years. Study subjects were nurses 80% followed by nurse midwives17%. Among all study subjects only 38% took refresher training. In the last three months, 27% of the respondents provided FP for post abortion patients. Sixty eight percent of the study subjects responded the appropriate place for post abortion FP service was at FP room and only 4% preferred in the delivery room. 79% of the study participants responded that patients express a desire for FP after PAC service. It was found out that among the 24 government health centers in Addis Ababa, 46% and 39% lacked IEC materials and MVA double valve syringes respectively. Those health professionals who took refresher training were more likely to practice post abortion family planning service. v Conclusion and Recommendation; The majority of health providers did not take refresher training on post abortion care. Some health centers lack basic equipments required for providing post abortion care service. In general the importance of practice of Post Abortion Care Service could be improved in accordance with the national health policy and involvement of NGOs. Therefore, an increased Post Abortion Care Service training program, with an emphasis on post abortion FP service, is recommended for health professionals to improve the overall Post Abortion Care service delivery
The phenomenon of knowledge in theatres of war in contemporary epistemic warfare: a new epistemology of journalism in the light of fake news
Creators: name: Delfanti, Leonardo Roberto
Publisher: name: Aristotle University of Thessaloniki
Year: 2022

description: The philosophers of war (Bernini 2009, Pili 2015) have shown that knowledge in theatres of conflict is an extremely difficult phenomenon to manage. In his Pure Philosophy of War, for example, Pili states that there is no dialectical opposition in ontological terms between peace and war, both being moments of the political becoming of a State. However, our imagination, properly supported by propaganda, tends to oppose war and peace not only in aesthetic but also in moral terms. Therefore, there is in this gnoseological hiatus of historical becoming, a paradox rarely explored when talking about the conflict in the Western world. In my opinion, the problem concerns the epistemology of war. In fact, from the moment a community enters a truce of violence the ultimate end of the nation becomes its victory/survival and not the search for the truth. According to this logic, information is therefore defined as true or false according to the strategy adopted by the power structure (Foucault, 1977) and no longer in compliance with the control of those to whom we gave the authority to command. In this context, appropriately inaccurate legislation and information management (Kumar, 2003) not only leave ample scope for information homogenisation but above all prevent the historical analysis of events thus making all involved much more vulnerable to the manipulation of content (Payne, 2005). The purpose of this thesis is therefore to clarify that this paradox exists and that only the creation of a new epistemology of sources in the context of war, could really analytically solve the problem of fake news and give journalism back its role as the watchdog of power.
description: Οι φιλόσοφοι του πολέμου (Bernini 2009, Pili 2015) έχουν δείξει ότι η γνώση στα θέατρα της σύγκρουσης είναι ένα εξαιρετικά δύσκολο φαινόμενο στη διαχείριση. Στο Pure Philosophy of War, για παράδειγμα, ο Pili δηλώνει ότι δεν υπάρχει διαλεκτική αντίθεση με οντολογικούς όρους μεταξύ της ειρήνης και του πολέμου, καθώς και οι δύο είναι στιγμές του πολιτικού γίγνεσθαι ενός κράτους. Ωστόσο, η φαντασία μας, σωστά υποστηριζόμενη από την προπαγάνδα, τείνει να εναντιωθεί στον πόλεμο και την ειρήνη όχι μόνο αισθητικά αλλά και ηθικά. Επομένως, υπάρχει σε αυτό το γνωστολογικό διάλειμμα του ιστορικού γίγνεσθαι, ένα παράδοξο που σπάνια διερευνάται όταν μιλάμε για τη σύγκρουση στον δυτικό κόσμο.
Our mutual friend, no. 02
Creators: name: Dickens, Charles, 1812-1870
Publisher: name: University of Victoria Libraries
Year: 2018
Subjects: subject: Inheritance and succession
valueUri: http://id.worldcat.org/fast/973371
subject: Social classes
valueUri: http://id.worldcat.org/fast/1122346
subject: Social conflict
valueUri: http://id.worldcat.org/fast/1122378
subject: Families
valueUri: http://id.worldcat.org/fast/1728849

description: Last complete novel completed by Charles Dickens and is one of his most sophisticated works, combining savage satire with social analysis. In the opening chapters a body is found in the Thames and identified as that of John Harmon, a young man recently returned to London to receive his inheritance. Were he alive, his father's will would require him to marry Bella Wilfer, a beautiful, mercenary girl whom he had never met. Instead, the money passes to the working-class Boffins, and the effects spread into various corners of London society. Issued monthly from May 1864 to November 1865 in illustrated green paper covers. Chapters 5-7 Chapter 5. Boggin's bower -- Chapter 6. Cut adrift -- Chapter 7. Mr. Wegg looks after himself
Detailed optical spectroscopy of the hybridization gap and the hidden order transition in high quality URu$_{2}$Si$_{2}$ single crystals
Creators: name: Bachar, N.
name: Stricker, D.
name: Muleady, S.
name: Wang, K.
name: Mydosh, J. A.
name: Huang, Y. K.
name: van der Marel, D.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a detailed temperature and frequency dependence of the optical conductivity measured on clean high quality single crystals of URu$_{2}$Si$_{2}$ of $ac$- and $ab$-plane surfaces. Our data demonstrate the itinerant character of the narrow 5f bands, becoming progressively coherent as temperature is lowered below a cross-over temperature $T^*{\sim}75~K$. $T^*$ is higher than in previous reports as a result of a different sample preparation, which minimizes residual strain. We furthermore present the density-response (energy-loss) function of this compound, and determine the energies of the heavy fermion plasmons with $a$-and $c$-axis polarization. Our observation of a suppression of optical conductivity below 50~meV both along $a$ and $c$-axis, along with a heavy fermion plasmon at 18~meV, points toward the emergence of a band of coherent charge carriers crossing the Fermi energy and the emergence of a hybridization gap on part of the Fermi surface. The evolution towards coherent itinerant states is accelerated below the hidden order temperature $T_{HO}=17.5$~K. In the hidden order phase the low frequency optical conductivity shows a single gap at $\sim 6.5$meV, which closes at $T_{HO}$.
description: 13 figures
The Dragonfly Galaxy. III. Jet-brightening of a High-redshift Radio Source Caught in a Violent Merger of Disk Galaxies
Creators: name: Lebowitz, Sophie
name: Emonts, Bjorn
name: Terndrup, Donald M.
name: Burchett, Joseph N.
name: Prochaska, J. Xavier
name: Drouart, Guillaume
name: Villar-Martin, Montserrat
name: Lehnert, Matthew
name: De Breuck, Carlos
name: Vernet, Joel
name: Alatalo, Katherine
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The Dragonfly Galaxy (MRC 0152-209), the most infrared-luminous radio galaxy at redshift z~2, is a merger system containing a powerful radio source and large displacements of gas. We present kpc-resolution data from ALMA and the VLA of carbon monoxide (6-5), dust, and synchrotron continuum, combined with Keck integral-field spectroscopy. We find that the Dragonfly consists of two galaxies with rotating disks that are in the early phase of merging. The radio jet originates from the northern galaxy and brightens when it hits the disk of the southern galaxy. The Dragonfly Galaxy therefore likely appears as a powerful radio galaxy because its flux is boosted into the regime of high-z radio galaxies by the jet-disk interaction. We also find a molecular outflow of (1100 $\pm$ 550) M$_{\odot}$/yr associated with the radio host galaxy, but not with the radio hot-spot or southern galaxy, which is the galaxy that hosts the bulk of the star formation. Gravitational effects of the merger drive a slower and longer lived mass displacement at a rate of (170 $\pm$ 40) M$_{\odot}$/yr, but this tidal debris contain at least as much molecular gas mass as the much faster outflow, namely M(H2) = (3 $\pm$ 1) x 10$^9$ (alpha(CO)/0.8) M$_{\odot}$. This suggests that both the AGN-driven outflow and mass transfer due to tidal effects are important in the evolution of the Dragonfly system. The Keck data show Ly$α$ emission spread across 100 kpc, and CIV and HeII emission across 35 kpc, confirming the presence of a metal-rich and extended circumgalactic medium previously detected in CO(1-0).
description: Accepted for publication in ApJ (15 pages, 9 figures)
Differentials in Use-Effectiveness of Contraceptives in Dale Woreda, South Ethiopia
Creators: name: Abebe, Tizazu
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 1994

description: Global population is increasing at an alarming rate and Ethiopia is contributing 1.5 million persons / year. The pyramid shaped age structure of the population as in most developing countries is a prima facie evidence of high fertility and imminent population explosion. Single and multiple decrement life table techniques were used to analyze pattern of acceptance and use effectiveness of contraceptive methods in Dale Woreda Yirgalem Family Planning Project, Ethiopia. The majority of acceptors (59%) never had formal education. Substantial percentage (79%) of acceptors were in the age group 20-34. Continuation rate was high 94.1% for pill, ( 97.1%) for injectable, (82.6%) for other methods and (95.1%) for all methods combined. Single decrement life table technique showed that educational status, number of living children and husband's attitudes were found to be important factors for high continuation rates. FOCUS group discussion identified very poor, and in some cases non existent service as a barrier preventing many clients from using IUDs and VSC. A relatively high use of contraception by rural areas (62 .8%) compared to (36.1%) urban showed a substantial penetration o f the rural areas by the program. The paper argues that given the proper time and effort, contraceptive practices may prove effective in controlling population growth rates. The study concludes by establishing a strong case for a wide and integrated family planning programs that emphasize on effective methods with a high rate of acceptance and continuation. considerable effort will have to be devoted to increasing the availability of FP services particularly It is recommended that a community based operational research should be conducted to provide strong evidence and substantial conclusion
Biotic and abiotic phosphorus uptake and release by sediments : development of a process-based mathematical model
Creators: name: Khoshmanesh., Aazam
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Dynamic electrical behavior of halide perovskite based solar cells
Creators: name: Nemnes, George Alexandru
name: Besleaga, Cristina
name: Tomulescu, Andrei Gabriel
name: Pintilie, Ioana
name: Pintilie, Lucian
name: Torfason, Kristinn
name: Manolescu, Andrei
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A dynamic electrical model is introduced to investigate the hysteretic effects in the I-V characteristics of perovskite based solar cells. By making a simple ansatz for the polarization relaxation, our model is able to reproduce qualitatively and quantitatively detailed features of measured I-V characteristics. Pre-poling effects are discussed, pointing out the differences between initially over- and under-polarized samples. In particular, the presence of the current over-shoot observed in the reverse characteristics is correlated with the solar cell pre-conditioning. Furthermore, the dynamic hysteresis is analyzed with respect to changing the bias scan rate, the obtained results being consistent with experimentally reported data: the hysteresis amplitude is maximum at intermediate scan rates, while at very slow and very fast ones it becomes negligible. The effects induced by different relaxation time scales are assessed. The proposed dynamic electrical model offers a comprehensive view of the solar cell operation, being a practical tool for future calibration of tentative microscopic descriptions.
description: 8 pages, 6 figures, Supplemental material, to appear in Solar Energy Materials & Solar Cells
The Hazy and Metal-Rich Atmosphere of GJ 1214 b Constrained by Near and Mid-Infrared Transmission Spectroscopy
Creators: name: Gao, Peter
name: Piette, Anjali A. A.
name: Steinrueck, Maria E.
name: Nixon, Matthew C.
name: Zhang, Michael
name: Kempton, Eliza M. R.
name: Bean, Jacob L.
name: Rauscher, Emily
name: Parmentier, Vivien
name: Batalha, Natasha E.
name: Savel, Arjun B.
name: Arnold, Kenneth E.
name: Roman, Michael T.
name: Malsky, Isaac
name: Taylor, Jake
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The near-infrared transmission spectrum of the warm sub-Neptune exoplanet GJ 1214 b has been observed to be flat and featureless, implying a high metallicity atmosphere with abundant aerosols. Recent JWST MIRI LRS observations of a phase curve of GJ 1214 b showed that its transmission spectrum is flat out into the mid-infrared. In this paper, we use the combined near- and mid-infrared transmission spectrum of GJ 1214 b to constrain its atmospheric composition and aerosol properties. We generate a grid of photochemical haze models using an aerosol microphysics code for a number of background atmospheres spanning metallicities from 100 to 1000 $\times$ solar, as well as a steam atmosphere scenario. The flatness of the combined data set largely rules out atmospheric metallicities $\leq$300 $\times$ solar due to their large corresponding molecular feature amplitudes, preferring values $\geq$1000 $\times$ solar and column haze production rates $\geq$10$^{-10}$ g cm$^{-2}$ s$^{-1}$. The steam atmosphere scenario with similarly high haze production rates also exhibit sufficiently small molecular features to be consistent with the transmission spectrum. These compositions imply that atmospheric mean molecular weights $\geq$15 g mol$^{-1}$ are needed to fit the data. Our results suggest that haze production is highly efficient on GJ 1214 b and could involve non-hydrocarbon, non-nitrogen haze precursors. Further characterization of GJ 1214 b's atmosphere would likely require multiple transits and eclipses using JWST across the near and mid-infrared, potentially complemented by groundbased high resolution transmission spectroscopy.
description: 21 pages, 10 figures, 4 tables. Accepted for publication by ApJ
Diagnostische Kompetenzen von Lehramtsstudierenden bei der Beurteilung von Schülerlösungen
Creators: name: Leuders, Juliane
name: Leuders, Timo
Publisher: name: Gesellschaft für Didaktik der Mathematik
Year: 2014
Subjects: subject: 510

description: Unter den vielen Aufgaben, die Lehrerinnen und Lehrern in ihrer Praxis begegnen, kommt diagnostischen Aktivitäten eine wichtige Rolle zu. Solche Aktivitäten beinhalten das Sammeln und Interpretieren von Daten, sei es aus formalen Tests, durch Beobachtung, die Analyse von Schülerprodukten oder das Führen und Auswerten Gesprächen mit Lernenden. Das Ziel von Diagnose im Unterricht ist die Erhebung von validen Informationen über Leistungen und Schwierigkeiten von einzelnen Lernenden oder auch der ganzen Klasse. Wissen, Fähigkeiten und Einstellungen der Lehrenden, die mit diesen diagnostischen Aktivitäten in Verbindung stehen, können als diagnostische Kompetenz bezeichnet werden (s. Leuders, Leuders & Philipp, 2014).
Ανάπτυξη και αύξηση της κυτταρικής βιωσιμότητας εκτυπωμένων ιστών
Creators: name: Παπαδόπουλος, Ανδρόνικος Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2022
Subjects: Τρισδιάστατη Βιοεκτύπωση
Ιστοτεχνολογία
Νανοβιοτεχνολογία
3D Bioprinting
Tissue Engineering
Nanobiotechnology

description: Το 3D-Bioprinting (τρισδιάστατη βιοεκτύπωση) αποτελεί έναν ραγδαίως αναπτυσσόμενο κλάδο της Ιστοτεχνολογίας. Πρόκειται για την προσαρμογή των τεχνικών τρισδιάστατης εκτύπωσης πάνω στον τομέα της Ιστομηχανικής με σκοπό την ανάπτυξη λειτουργικών ιστών και οργάνων. Τα όργανα αυτά έχουν την προοπτική να χρησιμοποιηθούν ως μοντέλα μελέτης της αποτελεσματικότητας κάποιου φαρμάκου ή ως μοσχεύματα. Για την εκτύπωση χρησιμοποιούνται ειδικές βιομελάνες που αποτελούνται από βιολογικά πολυμερή και κύτταρα. Κύριο πρόβλημα στην τεχνική αυτή είναι η διατήρηση της κυτταρικής βιωσιμότητας σε υψηλά επίπεδα. Λόγω της ανεπαρκούς μεταφοράς θρεπτικών και οξυγόνου, οι περισσότεροι εκτυπωμένοι ιστοί ατροφούν λίγες μέρες μετά την εκτύπωση. Η διάχυση των θρεπτικών μπορεί να καλύψει μόνο τις ανάγκες των κυττάρων που βρίσκονται σε βάθος μέχρι 200μm μέσα στον ιστό, ενώ στο κέντρο του ιστού δημιουργείται ένας «νεκρωτικός πυρήνας». Όπως γίνεται κατανοητό, το πρόβλημα κλιμακώνεται όσο τα εκτυπωμένα όργανα αυξάνουν σε πάχος προκειμένου να φτάσουν στον κανονικό μέγεθος. Σκοπός της παρούσας εργασίας είναι η χρήση καινοτόμων μεθόδων για την αύξηση της κυτταρικής βιωσιμότητας σε εκτυπωμένους ιστούς. Οι μέθοδοι αυτοί περιλαμβάνουν τη χρήση πολυμερικών μειγμάτων στην βιομελάνη, την ενσωμάτωση πολυμερικών νανοσωματιδίων στην εκτυπωμένη υδρογέλη, και την εκτύπωση δομών που θα πάρουν τη θέση των αγγείων για την μεταφορά των θρεπτικών υλικών.
description: 3D Bioprinting is a rapidly growing field in Tissue Engineering. It is the use of 3D printing technologies with the purpose of producing functional tissue and organs. These organs can be used as models for drug screening or for transplants. During the bioprinting process, special bioinks that consist of cells and polymers are utilized. The main problem in 3D Bioprinting consists of maintaining cell viability. Due to the lack of nutrient and oxygen perfusion, most bioprinted tissue dies a few days after the printing process. Nutrient perfusion can cover the needs only for the cells that are at the surface of the bioprinted construct and up to 200μm in depth, whereas deeper in the construct a “necrotic core” is formed. The problem becomes bigger as bioprinted organs are getting bigger in size until they reach their normal size. The purpose of this thesis is to use innovative methods to increase cell viability in bioprinted tissue. These methods include the use of polymer blends in the bioink, the incorporation of polymer nanoparticles in the bioink and the bioprinting of vascular structures that replace blood vessels in nutrient supply.
The Global 21-cm Signal in the Context of the High-z Galaxy Luminosity Function
Creators: name: Mirocha, Jordan
name: Furlanetto, Steven R.
name: Sun, G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Motivated by recent progress in studies of the high-$z$ Universe, we build a new model for the global 21-cm signal that is explicitly calibrated to measurements of the galaxy luminosity function (LF) and further tuned to match the Thomson scattering optical depth of the cosmic microwave background, $τ_e$. Assuming that the $z \lesssim 8$ galaxy population can be smoothly extrapolated to higher redshifts, the recent decline in best-fit values of $τ_e$ and the inefficient heating induced by X-ray binaries (HMXBs; the presumptive sources of the X-ray background at high-$z$) imply that the entirety of cosmic reionization and reheating occurs at redshifts $z \lesssim 12$. In contrast to past global 21-cm models, whose $z \sim 20$ ($ν\sim 70$ MHz) absorption features and strong $\sim 25$ mK emission features were driven largely by the assumption of efficient early star-formation and X-ray heating, our new fiducial model peaks in absorption at $ν\sim 110$ MHz at a depth of $\sim -160$ mK and has a negligible emission component. As a result, a strong emission signal would provide convincing evidence that HMXBs are not the only drivers of cosmic reheating. Shallow absorption troughs should accompany strong heating scenarios, but could also be caused by a low escape fraction of Lyman-Werner photons. Generating signals with troughs at $ν\lesssim 95$ MHz requires a floor in the star-formation efficiency in halos below $\sim 10^{9} M_{\odot}$, which is equivalent to steepening the faint-end of the galaxy LF. These findings demonstrate that the global 21-cm signal is a powerful complement to current and future galaxy surveys and efforts to better understand the interstellar medium in high-$z$ galaxies.
description: 17 pages, 9 figures, in press
Band tailing and electron localization in disordered systems
Creators: name: Eam., Khor Kok
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Inferences from surface brightness fluctuations of Zwicky 3146 via the Sunyaev-Zeldovich effect and X-ray observations
Creators: name: Romero, Charles E.
name: Gaspari, Massimo
name: Schellenberger, Gerrit
name: Bhandarkar, Tanay
name: Devlin, Mark
name: Dicker, Simon R.
name: Forman, William
name: Khatri, Rishi
name: Kraft, Ralph
name: Di Mascolo, Luca
name: Mason, Brian S.
name: Moravec, Emily
name: Mroczkowski, Tony
name: Nulsen, Paul
name: Orlowski-Scherer, John
name: Sarmiento, Karen Perez
name: Sarazin, Craig
name: Sievers, Jonathan
name: Su, Yuanyuan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The galaxy cluster Zwicky 3146 is a sloshing cool core cluster at $z{=}0.291$ that in SZ imaging does not appear to exhibit significant pressure substructure in the intracluster medium (ICM). We perform a surface brightness fluctuation analysis via Fourier amplitude spectra on SZ (MUSTANG-2) and X-ray (XMM-Newton) images of this cluster. These surface brightness fluctuations can be deprojected to infer pressure and density fluctuations from the SZ and X-ray data, respectively. In the central region (Ring 1, $r < 100^{\prime\prime} = 440$ kpc, in our analysis) we find fluctuation spectra that suggest injection scales around 200 kpc ($\sim 140$ kpc from pressure fluctuations and $\sim 250$ kpc from density fluctuations). When comparing the pressure and density fluctuations in the central region, we observe a change in the effective thermodynamic state from large to small scales, from isobaric (likely due to the slow sloshing) to adiabatic (due to more vigorous motions). By leveraging scalings from hydrodynamical simulations, we find an average 3D Mach number $\approx0.5$. We further compare our results to other studies of Zwicky 3146 and, more broadly, to other studies of fluctuations in other clusters.
description: Accepted to ApJ; 22 pages, 19 figures
No Conclusive Evidence for Transits of Proxima b in MOST photometry
Creators: name: Kipping, David M.
name: Cameron, Chris
name: Hartman, Joel D.
name: Davenport, James R. A.
name: Matthews, Jaymie M.
name: Sasselov, Dimitar
name: Rowe, Jason
name: Siverd, Robert J.
name: Chen, Jingjing
name: Sandford, Emily
name: Bakos, Gáspár Á.
name: Jordan, Andres
name: Bayliss, Daniel
name: Henning, Thomas
name: Mancini, Luigi
name: Penev, Kaloyan
name: Csubry, Zoltan
name: Bhatti, Waqas
name: Bento, Joao Da Silva
name: Guenther, David B.
name: Kuschnig, Rainer
name: Moffat, Anthony F. J.
name: Rucinski, Slavek M.
name: Weiss, Werner W.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The analysis of Proxima Centauri's radial velocities recently led Anglada-Escudé et al. (2016) to claim the presence of a low mass planet orbiting the Sun's nearest star once every 11.2 days. Although the a-priori probability that Proxima b transits its parent star is just 1.5%, the potential impact of such a discovery would be considerable. Independent of recent radial velocity efforts, we observed Proxima Centauri for 12.5 days in 2014 and 31 days in 2015 with the MOST space telescope. We report here that we cannot make a compelling case that Proxima b transits in our precise photometric time series. Imposing an informative prior on the period and phase, we do detect a candidate signal with the expected depth. However, perturbing the phase prior across 100 evenly spaced intervals reveals one strong false-positive and one weaker instance. We estimate a false-positive rate of at least a few percent and a much higher false-negative rate of 20-40%, likely caused by the very high flare rate of Proxima Centauri. Comparing our candidate signal to HATSouth ground-based photometry reveals that the signal is somewhat, but not conclusively, disfavored (1-2 sigmas) leading us to argue that the signal is most likely spurious. We expect that infrared photometric follow-up could more conclusively test the existence of this candidate signal, owing to the suppression of flare activity and the impressive infrared brightness of the parent star.
description: Accepted to ApJ. Posterior samples, MOST photometry and HATSouth photometry are all available at https://github.com/CoolWorlds/Proxima
Assessment of Adherence to Antiretroviral Therapy among HIV-Infected Persons in the Ministry of National Defense Force Hospitals, Addis Ababa and Debreziet
Creators: name: Mengesha, Ayalew
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2005

description: A stratified cross-sectional survey supported by qualitative approach was conducted on 422 HIVinfected persons receiving antiretroviral regimens from the Ministry of National Defense Force Hospitals, in Addis Ababa and Debrezit. The study was focused on the assessment of adherence to ARV therapy among HIV-infected persons from October 2004 to March 2005. The study group consists of three categories namely Officers, private and non-commissioned officers and civil. All 422 HIV-infected patients received ARV treatment for a mean duration of 3.7 months, were interviewed using pre-tested questionnaire and in depth interview to six selected cases. Adherence was measured using self report; participants were questioned regarding taking the total number of ARV pills prescribed by physician and the memory aids used to remind the prescribed regimens. The finding revealed that among the respondents who already started ARV therapy 160 (39.5%) were civil, 158 (37.6%) were private and non-commissioned officers, 96(22.4%) were officers. The median age was 35 years (interquartile range 29-40) and 284(67.3%) were males. The average adherence rate to ARV medication was 82.8% of all prescribed doses. Keeping clinical appointment, using memory aids and educational levels were associated with increased adherence. The incidence of opportunistic infections were higher in the study population before initiation of ART. The most frequent opportunistic infections were oral candidasis and pulmonary tuberculosis, both diseases decreased by three-fourth after the initiation of ART when comparing for the same patients. The frequency of AIDS-related infections declined dramatically by 83.3% after the initiation of ARV treatment and AIDS-related hospitalization is reduced by 44.7%. Of the total respondents 4(0.7%) of the patients developed serious adverse drug reactions requiring a change in treatment. It was concluded that most patients need aggressive modification to improve their adherence to ARV treatment. The findings suggest that develop patient centered education approach that ensure a good understanding of treatment by the patient on the help of memory aids and keeping clinical appointment.