cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Investigation of solid-state reactions by electrochemical and quartz crystal microbalance measurements
Creators: name: Snook., Graeme Andrew
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.
A limit theorem for singular stochastic differential equations
Creators: name: Pilipenko, Andrey
name: Prykhodko, Yuriy
Publisher: name: arXiv
Year: 2016
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We study the weak limits of solutions to SDEs \[dX_n(t)=a_n\bigl(X_n(t)\bigr)\,dt+dW(t),\] where the sequence $\{a_n\}$ converges in some sense to $(c_- 1\mkern-4.5mu\mathrm{l}_{x<0}+c_+ 1\mkern-4.5mu\mathrm{l}_{x>0})/x+γδ_0$. Here $δ_0$ is the Dirac delta function concentrated at zero. A limit of $\{X_n\}$ may be a Bessel process, a skew Bessel process, or a mixture of Bessel processes.
description: Published at http://dx.doi.org/10.15559/16-VMSTA63 in the Modern Stochastics: Theory and Applications (https://www.i-journals.org/vtxpp/VMSTA) by VTeX (http://www.vtex.lt/)
Bewertung von Beruf und Arbeit durch neurologisch tätige Ärzte in der Umstellungsphase der Krankenhausfinanzierung
Creators: name: Hasenbein, Uwe
name: Schulze, Axel
name: Frank, Bernd
name: Wallesch, Claus-Werner
Publisher: name: Lucius & Lucius Verlagsgesellschaft
Year: 2005
Subjects: subject: 300
subject: 650

description: Arbeit
Notes on Worldsheet-Like Variables for Cluster Configuration Spaces
Creators: name: He, Song
name: Wang, Yihong
name: Zhang, Yong
name: Zhao, Peng
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We continue the exploration of various appearances of cluster algebras in scattering amplitudes and related topics in physics. The cluster configuration spaces generalize the familiar moduli space ${\mathcal M}_{0,n}$ to finite-type cluster algebras. We study worldsheet-like variables, which for classical types have also appeared in the study of the symbol alphabet of Feynman integrals. We provide a systematic derivation of these variables from $Y$-systems, which allows us to express the dihedral coordinates in terms of them and to write the corresponding cluster string integrals in compact forms. We mainly focus on the $D_n$ type and show how to reach the boundaries of the configuration space, and write the saddle-point equations in terms of these variables. Moreover, these variables make it easier to study various topological properties of the space using a finite-field method. We propose conjectures about quasi-polynomial point count, dimensions of cohomology, and the number of saddle points for the $D_n$ space up to $n=10$, which greatly extend earlier results.
Cross-correlation of the Polarizations of the 21-cm and Cosmic Microwave Backgrounds
Creators: name: Ji, Lingyuan
name: Hotinli, Selim C.
name: Kamionkowski, Marc
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The polarization of the 21-cm radiation from the epoch of reionization arises from Thomson scattering of 21-cm photons from free electrons and provides information that complements that from the intensity fluctuation. Previous work showed that a direct detection of this signal will be difficult, and hinted that the signal might be enhanced via correlation with other tracers. Here, we discuss the cross-correlation between the cosmic microwave background (CMB) polarization and the 21-cm polarization. We treat reionization using an analytical model with parameters calibrated by semi-numerical simulations. We then derive the cross-correlation angular power spectrum using the total-angular-momentum formalism. We also provide a noise analysis to test against two closely related, but subtly different, null hypotheses. First, we assume no reionization as a null hypothesis, and determine how well this null hypothesis could be ruled out by an observed 21cm-CMB polarization correlation. Second, we determine how well the null hypothesis of no 21-cm polarization can be ruled out by seeking the cross-correlation, assuming reionization is established from the CMB. We find that the first question could be answered by a synergy of ambitious next-generation 21-cm and CMB missions, whereas the second question will still remain out of reach.
description: 9 pages, 3 figures
Prevalence and Belief in the Continuation of Female Genital Cutting among High School Girls, in Hadiya Zone, Southern Ethiopia, 2011
Creators: name: Tamire, Mulugeta
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2011

description: Background: Female Genital Cutting (FGC) is a cultural practice affecting 100-140 million girls and women across the world and putting 3 million females at risk every year in Africa. Although the trend is slowly decreasing in Ethiopia the magnitude is still very high as the procedure has no any known benefit but has many consequences. Objective: To assess the prevalence and beliefs in the continuation of FGC among high school girls in Hadiya zone of southern Ethiopia. Methods: A cross-sectional quantitative survey with complementary qualitative method was carried out among high school girls in Hadiya zone from January 2011 to February 2011. There were a total of 10587 female students within 12 governmental high schools in the zone, 797 were systematically selected from four high schools to participate in completing a self-administered questionnaire for this study. There was a response rate of 97.8%. Three focus group discussions with community and in-depth interviews with circumcisers were conducted using a semi-structured guide. Results: Six hundred forty one (82.2%) of the girls were circumcised at a mean age of 9 years. Half of the total participants responded that FGC was being practiced in their village. A majority 675(86.7%) had stated that FGC is harmful, while 606(77.7%) thought that a girl has the right not to be circumcised. More than half, 384(59.9%) of the cutting was performed by traditional circumcisers while 186(30%) of the cutting was performed by health professionals. Group circumcision is common in the area, 429(67%) were circumcised in groups and majority 528(82.5) of the cutting was in their own homes. Few of the circumcised girls, 60(9.4%) supported their status as a circumcised girl and only 5 % believe in the continuation of FGC. Conclusion: While there is an urgent need to stop the practice of FGC in Hadiya zone, cultural, beliefs related to maintain the hygiene of the genitalia and social factors are sustaining the practice. Therefore, there should be collaborative efforts from Governmental and non-Governmental organizations to support and bring change within the entire community
Theoretical estimate on tensor-polarization asymmetry in proton-deuteron Drell-Yan process
Creators: name: Kumano, S.
name: Song, Qin-Tao
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Tensor-polarized parton distribution functions are new quantities in spin-one hadrons such as the deuteron, and they could probe new quark-gluon dynamics in hadron and nuclear physics. In charged-lepton deep inelastic scattering (DIS), they are studied by the twist-two structure functions $b_1$ and $b_2$. The HERMES collaboration found unexpectedly large $b_1$ values than a naive theoretical expectation based on the standard deuteron model. The situation should be significantly improved in the near future by an approved experiment to measure $b_1$ at JLab (Thomas Jefferson National Accelerator Facility). There is also an interesting indication in the HERMES result that finite antiquark tensor polarization exists. It could play an important role in solving a mechanism on tensor structure in the quark-gluon level. The tensor-polarized antiquark distributions are not easily determined from the charged-lepton DIS; however, they can be measured in a proton-deuteron Drell-Yan process with a tensor-polarized deuteron target. In this article, we estimate the tensor-polarization asymmetry for a possible Fermilab Main-Injector experiment by using optimum tensor-polarized PDFs to explain the HERMES measurement. We find that the asymmetry is typically a few percent. If it is measured, it could probe new hadron physics, and such studies could create an interesting field of high-energy spin physics. In addition, we find that a significant tensor-polarized gluon distribution should exist due to $Q^2$ evolution, even if it were zero at a low $Q^2$ scale. The tensor-polarized gluon distribution has never been observed, so that it is an interesting future project.
description: 10 pages, 9 eps figures, 4 style files, Phys. Rev. D in press
title: Intentionen und Problemlagen der Nutzung atypischer Beschäftigung im ostdeutschen Mittelstand
title: Intensions and problems with using atypical modes of employment in East German medium-sized enterprises
titleType: AlternativeTitle
Creators: name: Winkler, Ingo
Publisher: name: Lucius & Lucius Verlagsgesellschaft
Year: 2005
Subjects: subject: future of work
subject: labour
subject: SME
subject: Personal
subject: Zukunft der Arbeit
subject: 300
subject: 650

description: Der vorliegende Beitrag beschäftigt sich mit der Nutzung atypischer Beschäftigung im ostdeutschen Mittelstand. Basierend auf den Ergebnissen einer explorativen Fragebogenuntersuchung werden zunächst die Nutzungsformen und die Nutzungsintensität von Leiharbeit, geringfügiger Beschäftigung, Teilzeitarbeit sowie Telearbeit untersucht. Hierbei lassen die Ergebnisse den Rückschluss zu, dass sich atypische Beschäftigungsformen in ostdeutschen KMU etabliert haben. Daran anschließend werden die Zielvorstellungen der Geschäftsleitungen dargestellt, die die Nutzung atypischer Beschäftigung leiten. Diese sind vorwiegend ökonomischer Natur. Hierbei wird auch die Wahrnehmung der Zielerreichung analysiert. Weiterhin wird auf Probleme fokussiert, die mit der Nutzung atypischer Beschäftigung in den untersuchten KMU auftreten. Dabei werden Antworten von Geschäftsleitungen und Arbeitnehmervertretern verglichen und Unterschiede herausgestellt. Es zeigt sich, dass Arbeitnehmervertreter mehr und zum Teil auch andere Probleme hervorheben als die Geschäftsleitungen.
description: This article deals with the usage of atypical modes of employment in East German medium-sized enterprises. It is based on the results of an explorative survey. First of all, the kinds and the intensity of different forms of atypical employment used by East German SMEs are examined. The results show that atypical employment has been established. Subsequently, the main goals of the company?s management that conducts the use of atypical employment will be pointed out. These goals are predominantly of economic nature. In this regard, perceptions of how to accomplish these goals will be analysed. Furthermore, focus will be placed on the difficulties the firms face when they use atypical employment. Here, the results of the management questionnaires will be compared to statements made by a set of worker representatives. The latter emphasise on more and partly different problems than the management does.
description: Arbeit
Late Pliocene and Early Pleistocene vegetation and climate cyclicity in the western uplands of Victoria, Australia
Creators: name: Sniderman., Jeffrey Mark Kale
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.
Raining Rocks: An analytical formulation for collision timescales in planetary systems
Creators: name: Torres, Santiago
name: Naoz, Smadar
name: Li, Gongjie
name: Rose, Sanaea C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The dynamical interaction of minor bodies (such as comets or asteroids) with planets plays an essential role in the planetary system's architecture and evolution. As a result of these interactions, structures like the Kuiper belt and the Oort cloud can be created. In particular, the collision of minor bodies with planets can drastically change the planet's internal and orbital evolution. We present an analytic formulation to determine the collision timescale for a minor body to impact a planet for arbitrary geometry. By comparing with a suite of detailed N-body simulations and an analytical method for collision timescales in the solar system, we confirmed the accuracy of our analytic formulation. As a proof of concept, we focused on the collision rate of minor bodies randomly distributed around a Jupiter-like planet, emulating a Kuiper belt-like disk. We show that our analytical method yields in good agreement with the numerical simulations. The formalism presented here thus provides a succinct and accurate alternative to numerical calculations.
description: 10 pages, 7 figures
Διαχείριση του πηκτικού μηχανισμού κατά την υποστήριξη με ECMO
Creators: name: Κερεμίδης, Ισαάκ Βασιλείου
Publisher: name: Aristotle University of Thessaloniki
Year: 2022
Subjects: Εξωσωματική οξυγόνωση μεμβράνης
Εξωσωματική υποστήριξη ζωής
Αντιπηκτική αγωγή
Extracorporeal membrane oxygenation
Εxtracorporeal life support
Αnticoagulant

description: Extracorporeal membrane oxygenation (ECMO) is a rescue therapy for patients with severe cardiorespiratory failure. The device is a closed and simpler circuit of cardiopulmonary bypass tubing, used temporarily with an oxygenator of longer duration than usual. Depending on the type of machine, it can support both cardiac and pulmonary function. Although ECMO is often used in clinical practice, hemorrhagic and thromboembolic complications remain the leading causes of mortality. These complications begin with the contact of blood with the artificial surfaces of the circuit, the pump and the oxygenator. Therefore, the use of anticoagulant medication is required to prevent thromboembolic or hemorrhagic events. Anticoagulant therapy mainly includes heparin and its derivatives that differ in molecular weight as well as newer factors that show benefits. The anticoagulant effect in the medication protocol that is applied is evaluated by various blood indicators. The role and benefits of heparin-based anticoagulant therapy for patients undergoing ECMO, as well as newer anticoagulants and the serious complications that arise, as well as the tools or indicators for monitoring anticoagulants in ECMO patients.
description: Η εξωσωματική οξυγόνωση (Extracorporeal membrane oxygenation -ECMO) είναι μια θεραπεία διάσωσης για ασθενείς με βαριά καρδιοαναπνευστική ανεπάρκεια. Η συσκευή αποτελείται από ένα κλειστό και απλό κύκλωμα σωληνώσεων καρδιοπνευμονικής παράκαμψης, που χρησιμοποιείται προσωρινά με οξυγονωτή μακρότερης διάρκειας από τους συνηθισμένους. Ανάλογα με τον τύπο του μηχανήματος, μπορεί να υποστηρίξει τόσο την καρδιακή όσο και την πνευμονική λειτουργία. Αν και το ECMO χρησιμοποιείται συχνά στην κλινική πράξη, οι αιμορραγικές και θρομβοεμβολικές επιπλοκές παραμένουν οι κύριες αιτίες θνητότητας. Αυτές οι επιπλοκές ξεκινούν με την επαφή του αίματος στις τεχνητές επιφάνειες του κυκλώματος, της αντλίας και του οξυγονωτή. Επομένως, απαιτείται η χρήση αντιπηκτικής φαρμακευτικής αγωγής για την πρόληψη θρομβοεμβολικών ή αιμορραγικών συμβαμάτων. Η αντιπηκτική αγωγή περιλαμβάνει κυρίως ηπαρίνη και τα παράγωγά της που διαφέρουν σε μοριακό βάρος καθώς και νεότερους παράγοντες που εμφανίζουν οφέλη. Η αντιπηκτική δράση στο πρωτόκολλο φαρμακευτικής αγωγής που εφαρμόζεται αξιολογείται με διάφορους δείκτες αίματος. Ο ρόλος και τα οφέλη της αντιπηκτικής θεραπείας με βάση την ηπαρίνη για ασθενείς που υποβάλλονται σε ECMO, καθώς και τα νεότερα αντιπηκτικά αλλά και οι σοβαρές επιπλοκές που προκύπτουν αποτελεί υλικό μελέτης όπως επίσης και τα εργαλεία ή οι δείκτες παρακολούθησης σε ασθενείς υπό αντιπηκτική θεραπεία σε ECMO.
A study of the effects of sino-aortic denervation and renal hypertension on sympathetic nerve activity in the rabbit
Creators: name: Snell., Jill
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.
Constraining non-commutative space-time from GW150914
Creators: name: Kobakhidze, Archil
name: Lagger, Cyril
name: Manning, Adrian
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The gravitational wave signal GW150914, recently detected by LIGO and Virgo collaborations, is used to place a bound on the scale of quantum fuzziness of non-commutative space-time. We show that the leading non-commutative correction to the phase of the gravitational waves produced by a binary system appears at the 2nd order of the post- Newtonian expansion. This correction is proportional to $Λ^2 \equiv |θ^{0i}|^2/(l_P t_P)^2$, where $θ^{μν}$ is the antisymmetric tensor of non-commutativity. To comply with GW150914 data, we find that $\sqrtΛ \lesssim 6$, namely less than one order of magnitude above the Planck scale. This is the most stringent bound on non-commutative scale, exceeding the previous constraints from particle physics processes by $\sim 15$ orders of magnitude.
description: 18 pages
Special Transition and Extraordinary Phase on the Surface of a Two-Dimensional Quantum Heisenberg Antiferromagnet
Creators: name: Ding, Chengxiang
name: Zhu, Wenjing
name: Guo, Wenan
name: Zhang, Long
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Continuous phase transitions exhibit richer critical phenomena on the surface than in the bulk, because distinct surface universality classes can be realized at the same bulk critical point by tuning the surface interactions. The exploration of surface critical behavior provides a window looking into higher-dimensional boundary conformal field theories. In this work, we study the surface critical behavior of a two-dimensional (2D) quantum critical Heisenberg model by tuning the surface coupling strength, and discover a direct special transition on the surface from the ordinary phase into an extraordinary phase. The extraordinary phase has a long-range antiferromagnetic order on the surface, in sharp contrast to the logarithmic decaying spin correlations in the 3D classical O(3) model. The special transition point has a new set of critical exponents, $y_{s}=0.86(4)$ and $η_{\parallel}=-0.33(1)$, which are distinct from the special transition of the classical O(3) model and indicate a new surface universality class of the 3D O(3) Wilson-Fisher theory.
description: 16 pages, 10 figures
Chemical composition and antibacterial activity of essential oils from the Tunisian Allium nigrum L.
Creators: name: Rouis-Soussi, Lamia Sakka
name: Ayeb-Zakhama, El Asma
name: Mahjoub, Aouni
name: Flamini, Guido
name: Jannet, Hichem Ben
name: Harzallah-Skhiri, Fethia
Publisher: name: Technische Universität Dortmund
Year: 2014
Subjects: subject: Allium nigrum L.
subject: essential oils
subject: organs
subject: GC–MS analysis
subject: antibacterial activity
subject: 610

description: The chemical composition of the essential oils of different Allium nigrum L. organs and the antibacterial activity were evaluated. The study is particularly interesting because hitherto there are no reports on the antibacterial screening of this species with specific chemical composition. Therefore, essential oils from different organs (flowers, stems, leaves and bulbs) obtained separately by hydrodistillation were analyzed using gas chromatography–mass spectrometry (GC–MS). The antibacterial activity was evaluated using the disc and microdilution assays. In total, 39 compounds, representing 90.8-96.9 % of the total oil composition, were identified. The major component was hexadecanoic acid (synonym: palmitic acid) in all the A. nigrum organs oils (39.1-77.2 %). We also noted the presence of some sesquiterpenes, mainly germacrene D (12.8 %) in leaves oil) and some aliphatic compounds such as n-octadecane (30.5 %) in bulbs oil. Isopentyl isovalerate, 14-oxy-α-muurolene and germacrene D were identified for the first time in the genus Allium L. All the essential oils exhibited antimicrobial activity, especially against Enterococcus faecalis and Staphylococcus aureus. The oil obtained from the leaves exhibited an interesting antibacterial activity, with a Minimum Inhibitory Concentration (MIC) of 62.50 μg/mL against these two latter strains. The findings showed that the studied oils have antibacterial activity, and thus great potential for their application in food preservation and natural health products.
description: EXCLI Journal ; Vol. 13, 2014
Γονιδιωματική ανάλυση συμβιωτικού μικροβιώματος σε είδη διθύρων του Θερμαϊκού κόλπου. Σχέση με την ποιότητα της σάρκας τους.
Creators: name: Μαυρίδου, Ευαγγελία Παναγιώτη
Publisher: name: Aristotle University of Thessaloniki
Year: 2022
Subjects: Μαρτελίωση
Δίθυρα
Οστρακοκαλλιέργειες
Marteiliosis
Bivalves
Aquacultures

description: Η συνεχόμενη αύξηση του πληθυσμού καθιστά αναγκαία την εύρεση μεγαλύτερης ποσότητας ποιοτικής τροφής. Τα δίθυρα, όπως είναι τα άτομα του είδους Mytilus galloprovincialis και Ostrea edulis, είναι τροφές πλούσιες σε θρεπτικά συστατικά. Έτσι, είναι φανερό πως η αύξηση των οστρακοκαλλιεργειών μπορούν να συμβάλλουν στην λύση του προβλήματος. Ταυτόχρονα παρατηρείται το φαινόμενο της υπερθέρμανσης του πλανήτη, που έχει σαν αποτέλεσμα την αύξηση της δράσης παρασίτων, όπως είναι η Marteilia refringens, τα οποία δρουν αρνητικά πάνω στα δίθυρα, προκαλώντας πολλές φορές τον θάνατό τους. Σκοπός της εργασίας αυτής είναι η ανίχνευση του παθογόνου Marteilia refringens σε άτομα του είδους Ostrea edulis και Mytilus galloprovincialis με τη χρήση της μεθόδου της αλυσιδωτής αντίδρασης της πολυμεράσης (PCR), με απώτερο σκοπό την εύρεση του ξενιστή, με την βοήθεια, του οποίου μεταδίδεται το παράσιτο.
description: The continuous increase of the population makes it necessary to find a larger quantity of quality food. Bivalves, such as those of the species Mytilus galloprovincialis and Ostrea edulis, are foods rich in nutrients. Thus, it is obvious that the increase of aquacultures can contribute to the solution of the problem. At the same time, the phenomenon of global warming increases the activity of parasites, such as Marteilia refringens, which act negatively on the bivalves, often causing their death. The aim of this work is to detect the pathogen Marteilia refringens in individuals of the species Ostrea edulis and Mytilus galloprovincialis using the polymerase chain reaction (PCR) method, with the ultimate goal of finding the host, which helps the parasite to spread.
MPEC 2024-Q96 : 2024 QY1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 QY1

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
The diet and ecology of leadbeaters possum and the sugar glider
Creators: name: Smith., Andrew
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.
The Impact of Feedback During Massive Star Formation by Core Accretion
Creators: name: Tanaka, Kei E. I.
name: Tan, Jonathan C.
name: Zhang, Yichen
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We study feedback during massive star formation using semi-analytic methods, considering the effects of disk winds, radiation pressure, photoevaporation and stellar winds, while following protostellar evolution in collapsing massive gas cores. We find that disk winds are the dominant feedback mechanism setting star formation efficiencies (SFEs) from initial cores of ~0.3-0.5. However, radiation pressure is also significant to widen the outflow cavity causing reductions of SFE compared to the disk-wind only case, especially for >100Msun star formation at clump mass surface densities Sigma<0.3g/cm2. Photoevaporation is of relatively minor importance due to dust attenuation of ionizing photons. Stellar winds have even smaller effects during the accretion stage. For core masses Mc~10-1000Msun and Sigma~0.1-3g/cm2, we find the overall SFE to be 0.31(Rc/0.1pc)^{-0.39}, potentially a useful sub-grid star-formation model in simulations that can resolve pre-stellar core radii, Rc=0.057(Mc/60Msun)^{1/2}(Sigma/g/cm2)^{-1/2}pc. The decline of SFE with Mc is gradual with no evidence for a maximum stellar-mass set by feedback processes up to stellar masses of ~300Msun. We thus conclude that the observed truncation of the high-mass end of the IMF is shaped mostly by the pre-stellar core mass function or internal stellar processes. To form massive stars with the observed maximum masses of ~150-300Msun, initial core masses need to be >500-1000Msun. We also apply our feedback model to zero-metallicity primordial star formation, showing that, in the absence of dust, photoevaporation staunches accretion at ~50Msun. Our model implies radiative feedback is most significant at metallicities ~10^{-2}Zsun, since both radiation pressure and photoevaporation are effective in this regime.
description: 18 pages, 7 figures, accepted to ApJ
Assessment of Substance use and Risky Sexual Behavior for Sexually Transmitted Infections among Private Health Science College students in Addis Ababa, Ethiopia
Creators: name: Nuru, Anwar
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2014

description: Background Substance use is a major national public health problem that creates impaired health and risky sexual behaviors. Young people are particularly at risk for substance use, the most adverse consequences associated with substance use include, unprotected sex, multiple sexual partners and sex with commercial sex workers, and such combinations greatly increase the susceptibility to sexually transmitted infections. Objective The main objective of this study was to determine the prevalence of substance use and risky sexual behavior for STIs infection and factors associated among private health science college students, Addis Ababa Methods A cross -sectional study was conducted to determine the prevalence of substance use and risky sexual behavior for STIs infection among students in 14 private health Science Colleges in Addis Ababa. From all colleges 651 students were selected using multistage sampling method. Data were collected using structured and pretested self-administered questionnaire. Data were entered and cleaned using Epi-info version 3.5.1and analyzed by SPSS version 17.Frequency distribution, percentage, logistic regression and odds ratio was calculated to ascertain association between dependent and independent variables. Results of 637 study participants; use of alcohol, khat and cigarette was reported by 36.5%, 21.0% and 14.6% students, respectively. There were significant differences between males and females with respect to substance use behavior; multiple sexual partner and unprotected sex were reported by 35.5% and 18.1% of the students. Alcohol drink was associated with both having multiple sexual partner (AOR =6.47 and 95% CI 2.29 - 18.29) and unprotected sex (AOR=3.93 and 95% CI 1.46 - 10.53) compared to those who didn't take alcohol. But khat chewing and cigarette smoking were didn't have an association with multiple sexual partner and unprotected sex. Conclusion and recommendations Use of alcohol was significantly associated with risk sexual behaviors, multiple sexual partner and unprotected sex. This study suggests a need for multi-faceted strategies for reducing levels of substance use and enhancing protective sexual behavior.
Search for resonances in diphoton events at $\sqrt{s}$=13 TeV with the ATLAS detector
Creators: name: ATLAS Collaboration
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Searches for new resonances decaying into two photons in the ATLAS experiment at the CERN Large Hadron Collider are described. The analysis is based on proton--proton collision data corresponding to an integrated luminosity of 3.2 fb$^{-1}$ at $\sqrt{s} = 13$ TeV recorded in 2015. Two searches are performed, one targeted at a spin-2 particle of mass larger than 500 GeV, using Randall--Sundrum graviton states as a benchmark model, and one optimized for a spin-0 particle of mass larger than 200 GeV. Varying both the mass and the decay width, the most significant deviation from the background-only hypothesis is observed at a diphoton invariant mass around 750 GeV with local significances of 3.8 and 3.9 standard deviations in the searches optimized for a spin-2 and spin-0 particle, respectively. The global significances are estimated to be 2.1 standard deviations for both analyses. The consistency between the data collected at 13 TeV and 8 TeV is also evaluated. Limits on the production cross section times branching ratio to two photons for the two resonance types are reported.
description: 32 pages plus author list (49 pages total), 12 figures, 2 tables, published version, all figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HIGG-2016-08/
Direct polariton-to-electron tunneling in quantum cascade detectors operating in the strong light-matter coupling regime
Creators: name: Lagrée, Mathurin
name: Jeannin, Mathieu
name: Quinchard, Grégory
name: Ouznali, Oussama
name: Evirgen, Axel
name: Trinité, Virginie
name: Colombelli, Raffaele
name: Delga, Alexandre
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrate mid-infrared quantum cascade detectors (QCD) operating in the strong light-matter coupling regime. They operate around $λ= 10~μm$ with a minimum Rabi splitting of 9.3 meV. A simple model based on the usual description of transport in QCDs does not reproduce the polaritonic features in the photo-current spectra. On the contrary, a more refined approach, based on the semi-classical coupled modes theory, is capable to reproduce both optical and electrical spectra with excellent agreement. By correlating absorption/photo-response with the simulations, we demonstrate that - in this system - resonant tunneling from the polaritonic states is the main extraction mechanism. The dark intersubband states are not involved in the process, contrary to what happens in electrically injected polaritonic emitters.
The metal catalysed hydrocyanation of substituted alkynes
Creators: name: Smallridge., Andrew John
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.
Assessment of Barriers To Emergency Contraception Use Among Antenatal care Seekers of Addis Ababa Health Centers
Creators: name: Dinku, Etalemahu
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2007

description: Background; - In Ethiopia where maternal mortality is one of the highest and induced abortion secondary to unwanted pregnancies contributing the highest proportion of maternal deaths using emergency contraception as a back up method can contribute to reduce unwanted pregnancy secondary to method failure, contraception non use and also rape. Objectives; -the study is designed to assess the knowledge and practice to emergency contraception & also barriers to its use among the antenatal care attendees of Addis Ababa health centers. Methodology;-cross sectional institution based descriptive study was conducted in ten health centers of Addis Ababa from September to October 2006. One health center from each ten sub cities of Addis Ababa were included in the study after selecting by simple random sampling technique from each sub city .By using systematic random sampling technique 636 Ante natal care attendees were interviewed with a response rate of 97.8%. Pretested and structured questionnaire was used to collect the data & the data entered to EPI6 and SPSS version 11 used for analysis. Result Of the 636 women included in the study 148(23.3%) of the women reported that the current pregnancy is mistimed, 90(14.2%) is unwanted and 60(9.4%) reported that they had induced abortion in the last two years. Of the study participants 65(10.2%) had ever heard of emergency contraception. Where as, only 12(1.9%) of the women had actually used emergency contraception. The preferred places for the provision of emergency contraception were public hospitals 331(52%), health centers 214(33.6%), private clinics 34(5.3%), &pharmacies 33(5.2%). Conclusion This study showed that the major barrier to the use of emergency contraception is lack of awareness of this contraceptive method & also there is demand for education and provision of emergency contraception methods.
Measurement and extinction of vector light shifts using interferometry of spinor condensates
Creators: name: Wood, A. A.
name: Turner, L. D.
name: Anderson, R. P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We use differential Ramsey interferometry of ultracold atoms to characterize the vector light shift (VLS) from a far-off resonance optical dipole trap at $λ= 1064\,\mathrm{nm}$. The VLS manifests as a `fictitious' magnetic field, which we perceive as a change in the Larmor frequency of two spinor condensates exposed to different intensities of elliptically polarized light. We use our measurement scheme to diagnose the light-induced magnetic field and suppress it to $2.1(8)\times10^{-4}$ of its maximum value, by making the trapping light linearly polarized with a quarter-wave plate in each beam. Our sensitive measurement of the VLS-induced field demonstrates high-precision, in-vacuo interferometric polarimetry of dipole trapping light and can be adapted to measure vector shifts from other lasers, advancing the application of optically trapped atoms to precision metrology.
description: 12 pages, 6 figures
Testing generalized scalar-tensor theories of gravity with clusters of galaxies
Creators: name: Haridasu, Balakrishna S.
name: Karmakar, Purnendu
name: De Petris, Marco
name: Cardone, Vincenzo F.
name: Maoli, Roberto
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We test the generalized scalar-tensor theory in static systems, namely galaxy clusters. The Degenerate higher-order scalar-tensor (DHOST) theory modifies the Newtonian potential through effective Newtonian constant and $Ξ_1$ parameter in the small scale, which modifies the hydrostatic equilibrium. We utilize the well-compiled X-COP catalog consisting of 12 clusters with Intra Cluster Medium (ICM) pressure profile by Sunyaev-Zeldovich effect data and temperature profile by X-ray data for each cluster. We perform a fully Bayesian analysis modeling Navarro-Frenk-White (NFW) for the mass profile, and the simplified Vikhlinin model for the electron density. Carefully selecting suitable clusters to present our results, we find a mild to moderate, i.e, $\sim 2σ$ significance for a deviation from the standard scenario in 4 of the clusters. However, in terms of Bayesian evidence, we find either equivalent or mild preference for GR. We estimate a joint constraint of $Ξ_1 = -0.030 \pm 0.043$ using 8 clusters, for a modification from a $Λ$CDM scenario. This limit is in very good agreement with theoretical ones and an order of magnitude more stringent than the previous constraint obtained using clusters. We also quote a more conservative limit of $Ξ_1 = -0.061 \pm 0.074$. Finally, we comment on the tentative redshift dependence ($Ξ_1(z)$), finding a mild preference ($ \lesssim 2σ$) for the same.
description: Comments are Welcome
title: Elterliche Schulzufriedenheit in integrativer und segregativer Beschulung sprachauffälliger Kinder: Ein Vergleich zwischen Förderschule und Gemeinsamem Unterricht
title: Parent’s Satisfaction with Special need Education for their Language Impaired Children: A Comparison between Inclusive vs. Segregated Schools in Germany
titleType: AlternativeTitle
Creators: name: Lüke, Timo
name: Ritterfeld, Ute
Publisher: name: Pabst Science Publishers
Year: 2012
Subjects: subject: AO-SF
subject: Elternbefragung
subject: Elternzufriedenheit
subject: Förderschule
subject: inclusive education
subject: Inklusion
subject: language impairment
subject: parent satisfaction
subject: special educational needs
subject: Sprachauffälligkeit
subject: Sprachstörung
subject: survey
subject: 360
subject: 370

description: Seit dem Inkrafttreten der UN-Konvention über die Rechte behinderter Menschen wird zunehmend öffentlich über die Strukturen der sonderpädagogischen Förderung in Deutschland diskutiert. Anhand einer Befragungsstudie mit 542 Eltern sprachauffälliger GrundschülerInnen, bei der die Schulzufriedenheit im Gemeinsamen Unterricht und in der Förderschule vergleichend untersucht wird, soll ein empirischer Beitrag zu dieser Debatte geliefert werden. Die Befunde zeigen, dass die Zufriedenheit der Eltern in beiden schulischen Settings gleichermaßen sehr hoch ist. Weitere Analysen machen allerdings deutlich, dass die Stigmatisierung der Kinder im integrativen Setting geringer ausfällt als bei segregativer Beschulung. Darüber hinaus sind Eltern von integrativ beschulten Mädchen und Jungen zuversichtlicher, dass ihr Kind die Sprachprobleme überwinden wird, und optimistischer in Bezug auf dessen Bildungs- und Teilhabechancen. Weiterhin wurde festgestellt, dass einige Elterngruppen deutlich geringere Chancen haben, ihren Wunsch auf integrative Unterrichtung ihres Kindes durchzusetzen.
description: Special need education in Germany is a highly controversial topic as many favor segregated schools despite the recent UN convention on the rights of persons with disabilities. A survey was conducted with 542 parents having a child with language impairment that is either enrolled in a special need school or in an integrative elementary school setting. Results indicate equally high parental satisfaction in both systems. Further analyses, however, demonstrate higher perceived stigmatization of children in the segregated compared to the integrative setting; more optimistic view in parents who are enrolled in integrative schools regarding language improvement, career options, and social participation. Further results reveal unexpected discrimination of some families in respecting their individual choices for a school setting they believe in. Results are discussed with respect to the importance of parental choice and the need for further empirical investigation on pedagogic strategies that really work for language impaired children.
Διοίκηση, Ηγεσία και Παρακίνηση σε Οργανισμούς Κοινωνικής Φροντίδας
Creators: name: Ματζιάρας, Μαρίνος Γεωργίου-Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2022
Subjects: Ηγεσία
Παρακίνηση
Οργανισμοί Κοινωνικής Φροντίδας
Leadership
Motivation
Social Care Organizations

description: Η παρούσα διπλωματική εργασία αναφέρεται σε μια εκτεταμένη ανάλυση της παρακίνησης των εργαζομένων σε υπηρεσίες κοινωνικής φροντίδας της πρωτοβάθμιας τοπικής αυτοδιοίκησης. Σκοπός της είναι να διερευνηθεί το συγκεκριμένο θεματικό πλαίσιο και να υποδειχτούν οι τρόποι πως ο κάθε εργαζόμενος θα μπορέσει να προσφέρει το βέλτιστο στην υπηρεσία του για να λειτουργήσει αποδοτικότερα ο μηχανισμός διοίκησης στο δημόσιου τομέα. Για την εκπλήρωση του σκοπού συνδυάστηκε η βιβλιογραφική ανασκόπηση με την ποιοτική έρευνα. Η ποιοτική έρευνα κατέγραψε τις απόψεις οκτώ προϊσταμένων σε υπηρεσίες κοινωνικής φροντίδας στο νομό Έβρου με ημιδομημένες προσωπικές συνεντεύξεις. Οι θεματικές ενότητες που ερευνήθηκαν αφορούσαν την έννοια και το αντικείμενο της παρακίνησης, την αξιολογική διαδικασία και το εργαλείο της προσωπικής συνέντευξης και τέλος την εκτίμηση του νομικού πλαισίου. Το βασικό συμπέρασμα συνίσταται στο ότι η ηθική επιβράβευση έχει υψηλή λειτουργικότητα στο σύστημα παρακίνησης των υπαλλήλων. Επίσης, αν και η παρούσα κατάσταση δεν κρίνεται ευνοϊκή για την παρακίνηση των υπαλλήλων, οι προϊστάμενες βάσει κυρίως εμπειρίας τους, καθιστούν τις υπηρεσίες τους αποδοτικές.
description: This dissertation refers to an extensive analysis of the motivation of employees in social care services of primary local government. Its purpose is to explore the specific thematic context and to indicate the ways in which each employee will be able to offer the best in his service in order to function more efficiently the management mechanism in the public sector. To fulfill the purpose, the literature review was combined with qualitative research. The qualitative research recorded the views of eight managers at social care services in the Evros prefecture through semi-structured personal interviews. The thematic units that were researched concerned the concept and the object of the motivation, the evaluation process, the personal interview tool and finally the evaluation of the legal framework. The basic premise is that ethical reward has a high functionality in the employee motivation system. Also, although the current situation is not considered favorable for motivating employees, managers based mainly on their experience to make their services efficient.
description: Σε συνεργασία με: Κοινωνικής Διοίκησης και Πολιτικής Επιστήμης (Δημοκρίτειο Πανεπιστήμιο Θράκης)
Implementation and performance analysis of efficient grid-free integral wall models in unstructured-grid LES solvers
Creators: name: Hayat, Imran
name: Park, George Ilhwan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Two zonal wall models based on integral form of the boundary layer differential equations, albeit with algebraic complexity, have been implemented in an unstructured-grid cell-centered finite-volume LES solver. The first model is a novel implementation of the ODE equilibrium wall model, where the velocity profile is expressed in the integral form using the constant shear-stress layer assumption and the integral is evaluated using a spectral quadrature method, resulting in a local and algebraic (grid-free) formulation. The second model, which closely follows the integral wall model of Yang et al. (Phys. Fluids 27, 025112 (2015)), is based on the vertically-integrated thin-boundary-layer PDE along with a prescribed composite velocity profile in the wall-modeled region. Several numerical challenges unique to the implementation of these integral models in unstructured mesh environments, such as the exchange of wall quantities between wall faces and LES cells, and the computation of surface gradients, are identified and possible remedies are proposed. The performance of the wall models is assessed both in a priori and a posteriori settings against the traditional finite-volume based ODE equilibrium wall model, showing a comparable computational cost for the integral wall model, and superior performance for the spectral implementation over the finite-volume based approach. Load imbalance among the processors in parallel simulations seems to severely degrade the parallel efficiency of finite-volume based ODE wall model, whereas the spectral implementation is remarkably agnostic to these effects.
Physico-chemical studies of the interactions of conjugated macrocyclic chelates with polyelectrolytes
Creators: name: Skorobogaty., Andrew
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.
Prospektive Zeitbestimmung für nicht wertschöpfende Montagetätigkeiten
Creators: name: Picker, Christoph
Publisher: name: Technische Universität Dortmund
Year: 2007
Subjects: subject: Zeitermittlung
subject: Montageplanung
subject: Nicht wertschöpfende Tätigkeiten
subject: 620
subject: 670

description: Zeitdaten werden in allen Phasen des Produktlebenszyklus benötigt. Sie sind besonders in der Planung wichtig, da in dieser Phase der wirtschaftliche Erfolg eines Produkts wesentlich mitbestimmt wird. Bei der prospektiven Ermittlung von Montagezeiten wurde in der Vergangenheit der Fokus auf eine aufwandsarme Bestimmung von Zeitdaten für wertschöpfende Tätigkeiten gelegt, da die Wertschöpfung den wesentlichen Inhalt der Montage darstellen sollte. Übersehen wird dabei vielfach, dass es auch nicht wertschöpfende Tätigkeiten gibt, die unter bestimmten Randbedingungen sogar zeitlich umfangreicher sein können als die wertschöpfenden Tätigkeiten. Im Rahmen der Arbeit wird eine Vorgehensweise entwickelt, mit der nicht wertschöpfende Tätigkeiten prospektiv ermittelt und zeitlich bewertet werden können. Durch die produktbezogene Aufbereitung der Zeitdaten ist eine vielseitige Nutzung bei der Montageplanung gegeben. Besonderes Augenmerk wird auf ein Werkzeug gelegt mit dem eine aufwandsarme Ermittlung von Zeitdaten bei ausreichender Genauigkeit erreicht werden kann. Aufgrund der verwendeten Vorgehensweise ist der Einsatz des Werkzeugs zur Zeitdatenermittlung nicht auf die Planungsphase beschränkt, möglich ist auch ein Einsatz bei laufender Montage für die kontinuierliche Verbesserung. Die Eignung von Vorgehensweise und Werkzeug zur aufwandsarmen und praxis-gerechten Ermittlung von produktbezogenen Sekundärzeiten wird bei einem Hersteller von Industriepumpen exemplarisch belegt.