cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Επίδραση της πέψης (μοντέλο INFOGEST) στη βιοπροσβασιμότητα της βιταμίνης D3 σε συμπληρώματα διατροφής και ενισχυμένα τρόφιμα
Creators: name: Κωνσταντινίδης Μιλτιάδης Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2022
Subjects: βιταμίνη D
βιοπροσβασιμότητα
INFOGEST
vitamin D
bioaccessibility

description: Η βιταμίνη D αποτελεί ένα πολύ σημαντικό μικροθρεπτικό συστατικό για τον ανθρώπινο οργανισμό, καθώς σχετίζεται με την υγεία των οστών και συμβάλλει στην ενίσχυση του ανοσοποιητικού συστήματος. Η παρούσα διπλωματική εργασία αφορά την επίδραση της πέψης στη βιοπροσβασιμότητα της βιταμίνης D σε ενισχυμένα τρόφιμα και συμπληρώματα διατροφής. Πιο συγκεκριμένα προσδιορίστηκε η ποσότητα της βιταμίνης D3 σε τρία εμπορικά συμπληρώματα και πέντε τρόφιμα (ενισχυμένα και μη) και ερευνήθηκε η βιοπροσβασιμότητα της, εφαρμόζοντας το in vitro μοντέλο στατικής πέψης INFOGEST. Το μοντέλο αυτό προσομοιάζει τις συνθήκες της πέψης (pH, ένζυμα, χρόνος) που παρατηρούνται στον ανθρώπινο οργανισμό, διαχωρίζοντας την σε τρία στάδια την φάση του στόματος, την στομαχική και εντερική φάση. Ο ποιοτικός και ποσοτικός προσδιορισμός της βιταμίνης D πραγματοποιήθηκε με την αναλυτική μέθοδο της Υγρής Χρωματογραφίας Υψηλής Πίεσης στο τέλος κάθε σταδίου της πέψης, έτσι ώστε να προσδιοριστεί το στάδιο με τις περισσότερες απώλειες και τα δεδομένα χρησιμοποιήθηκαν για την επικύρωση του μαθηματικού μοντέλου. Επιπλέον, μελετήθηκε η επίδραση του γαστρικού pH στην βιοπροσβασιμότητα της βιταμίνης D, προκειμένου να προσδιοριστεί η καλύτερη περίοδος λήψης ενός συμπληρώματος
description: Vitamin D is a very important micronutrient for the human body, as it is related to bone health and contributes to strengthening the immune system. This thesis concerns the effect of digestion on the bioavailability of vitamin D in fortified foods and nutritional supplements. More specifically, the amount of vitamin D3 in three commercial supplements and five foods (fortified and unfortified) was determined and its bioavailability was investigated, applying the INFOGEST in vitro static digestion model. This model simulates the conditions of digestion (pH, enzymes, time) observed in the human body, dividing it into three stages: the mouth phase, the stomach phase and the intestinal phase. The qualitative and quantitative determination of vitamin D was performed by the analytical method of High Pressure Liquid Chromatography at the end of each stage of digestion, so as to determine the stage with the most losses, and the data were used to validate the mathematical model. In addition, the effect of gastric pH on vitamin D bioavailability was studied in order to determine the best time to take a supplement
Transport and localization in a topological phononic lattice with correlated disorder
Creators: name: Ong, Zhun-Yong
name: Lee, Ching Hua
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Recently proposed classical analogs of topological insulators in phononic lattices have the advantage of much more accessible experimental realization as compared to conventional materials. Drawn to their potential practical structural applications, we investigate how disorder, which is generically non-negligible in macroscopic realization, can attenuate the topologically protected edge (TPE) modes that constitute robust transmitting channels at zero disorder. We simulate the transmission of phonon modes in a quasi-one-dimensional classical lattice waveguide with mass disorder, and show that the TPE mode transmission remains highly robust ($Ξ\sim1$) in the presence of uncorrelated disorder, but diminishes when disorder is spatially correlated. This reduction in transmittance is attributed to the Anderson localization of states within the mass disorder domains. By contrast, non-TPE channels exhibit qualitatively different behavior, with spatial correlation in the mass disorder leading to significant transmittance reduction (enhancement) at low (high) frequencies. Our results demonstrate how topologically protected edge modes drastically modify the effect of spatial correlation on mode localization.
description: 13 pages, 8 figures
Gravitational-wave tail effects to quartic non-linear order
Creators: name: Marchand, Tanguy
name: Blanchet, Luc
name: Faye, Guillaume
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Gravitational-wave tails are due to the backscattering of linear waves onto the space-time curvature generated by the total mass of the matter source. The dominant tails correspond to quadratic non-linear interactions and arise at the one-and-a-half post-Newtonian (1.5PN) order in the gravitational waveform. The "tails-of-tails", which are cubic non-linear effects appearing at the 3PN order in the waveform, are also known. We derive here higher non-linear tail effects, namely those associated with quartic non-linear interactions or "tails-of-tails-of-tails", which are shown to arise at the 4.5PN order. As an application, we obtain at that order the complete coefficient in the total gravitational-wave energy flux of compact binary systems moving on circular orbits. Our result perfectly agrees with black-hole perturbation calculations in the limit of extreme mass ratio of the two compact objects.
description: 32 pages, no figure, matches with published version
Edge conduction in monolayer WTe2
Creators: name: Fei, Zaiyao
name: Palomaki, Tauno
name: Wu, Sanfeng
name: Zhao, Wenjin
name: Cai, Xinghan
name: Sun, Bosong
name: Nguyen, Paul
name: Finney, Joseph
name: Xu, Xiaodong
name: Cobden, David H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A two-dimensional topological insulator (2DTI) is guaranteed to have a helical 1D edge mode in which spin is locked to momentum, producing the quantum spin Hall effect and prohibiting elastic backscattering at zero magnetic field. No monolayer material has yet been shown to be a 2DTI, but recently the Weyl semimetal WTe2 was predicted to become a 2DTI in monolayer form if a bulk gap opens. Here, we report that at temperatures below about 100 K monolayer WTe2 does become insulating in its interior, while the edges still conduct. The edge conduction is strongly suppressed by in-plane magnetic field and is independent of gate voltage, save for mesoscopic fluctuations that grow on cooling due to a zero-bias anomaly which reduces the linear-response conductance. Bilayer WTe2 also becomes insulating at low temperatures but does not show edge conduction. Many of these observations are consistent with monolayer WTe2 being a 2DTI. However, the low temperature edge conductance, for contacts spacings down to 150 nm, is below the quantized value,
description: 10 pages of main text plus 8 pages of supplementary materials
Epidemiologic and Economic Burden of Achalasia in the United States
Creators: name: Dellon, E.S.
name: Eluri, S.
name: Lund, J.L.
name: Cotton, C.C.
name: Gaber, C.E.
name: Farrell, T.M.
name: Strassle, P.D.
Publisher: name: W.B. Saunders
Year: 2022

description: Background & Aims: Achalasia is a debilitating chronic condition of the esophagus. Currently there are no national estimates on the epidemiologic and economic burden of disease. We sought to estimate trends in incidence and prevalence of achalasia by age-sex strata, and to estimate the total direct medical costs attributed to achalasia in the United States. Methods: We conducted a cohort study using two administrative claims databases: IBM MarketScan Commercial Claims and Encounters database (2001-2018; age <65) and a 20% sample of nationwide Medicare enrollment and claims (2007-2015; age ≥65). Point prevalence was calculated on the first day of each calendar year; the incidence rate captured new cases developed in the ensuing year. Utilization rates of healthcare services and procedures were reported. Mean costs per patient were calculated and standardized to the corresponding U.S. Census Bureau population data to derive achalasia-specific total direct medical costs. Results: The crude prevalence of achalasia per 100,000 persons was 18.0 (95% CI, 17.4, 18.7) in MarketScan and 162.1 (95% CI, 157.6, 166.6) in Medicare. The crude incidence rate per 100,000 person-years was 10.5 (95% CI, 9.9, 11.1) in MarketScan and 26.0 (95% CI, 24.9, 27.2) in Medicare. Incidence and prevalence increased substantially over time in the Medicare cohort, and increased with more advanced age in both cohorts. Utilization of achalasia-specific healthcare was high; national estimates of total direct medical costs exceeded $408 million in 2018. Conclusions: Achalasia has a higher epidemiologic and economic burden in the US than previously suggested, with diagnosis particularly increasing in older patients.
Einblicke in das Auswertungssystem einer Studie zur Förderung der Problemlösefähigkeit in der Grundschule
Creators: name: Janott, Stefanie
Publisher: name: Gesellschaft für Didaktik der Mathematik
Year: 2014
Subjects: subject: 510

description: „Probleme lösen“ zum Lerngegenstand machen, ist nicht erst seit der Veröffentlichung der Bildungsstandards im Fach Mathematik für den Primarbereich im Jahr 2004 (KMK 2005, S. 7) eine der Hauptaufgaben von Mathematikunterricht. Problemlösen ist vielmehr schon lange ein zentrales Bildungsziel (Winter 1997). Mit der Herausgabe der Bildungsstandards wurde der Förderung dieser allgemeinen mathematischen Kompetenz erneut Nachdruck verliehen.
Η αλληλογραφία του αυτοκράτορα Αδριανού με τις πόλεις του ανατολικού τμήματος της ρωμαϊκής αυτοκρατορίας
Creators: name: Νικολαΐδης, Μιλτιάδης Επαμεινώνδα
Publisher: name: Aristotle University of Thessaloniki
Year: 2022
Subjects: Αδριανός
Επιγραφική
Επιστολές
Hadrian
Epigraphy
Epistles

description: Αντικείμενο της παρούσας μεταπτυχιακής εργασίας είναι η μελέτη της αλληλογραφίας του αυτοκράτορα Αδριανού με τις πόλεις του ανατολικού τμήματος της ρωμαϊκής αυτοκρατορίας. Συνολικά συγκεντρώθηκαν 67 έγγραφα τα οποία διακρίνονται σε δύο βασικές κατηγορίες: α) αυτοκρατορικές επιστολές και β) αυτοκρατορικά διατάγματα. Και μόνον ο αριθμός των σχετικών εγγράφων -ο οποίος ξεπερνά κατά πολύ τόσο εκείνο των προκατόχων του όσο και των διαδόχων του στον αυτοκρατορικό θρόνο- είναι ικανός για να δείξει το ενδιαφέρον του εν λόγω αυτοκράτορα για την εύρυθμη λειτουργία της διοίκησης της αυτοκρατορίας. Στους αποδέκτες τους δεν ανήκουν μόνον πόλεις ή επιμέρους πολιτειακά όργανα, αλλά και οργανώσεις πολιτικο-θρησκευτικού χαρακτήρα, επαγγελματικοί σύλλογοι (σωματεία) ή ακόμη και μεμονωμένα πρόσωπα. Μεγαλύτερη ωστόσο εντύπωση προκαλεί η ποικιλία των θεμάτων με τα οποία καταπιάνεται ο princeps. Από την ανάλυση δηλαδή των σχετικών εγγράφων προκύπτει ότι ο φιλέλληνας αυτοκράτορας επιλήφθηκε μία πληθώρα ζητημάτων, άλλοτε εύκολων ως προς την διευθέτησή τους και άλλοτε πιο περίπλοκων, η επίλυση των οποίων απαιτούσε τεχνικές γνώσεις ή λεπτό χειρισμό. Συμπερασματικά, η προσωπική εμπειρία της αυτοκρατορίας την οποία ο Αδριανός απέκτησε μέσω των ταξιδιών του, τον καθιστούν, αν όχι τον καλύτερο, έναν από τους καλύτερους γνώστες των επιμέρους προβλημάτων της και παράλληλα εκείνον που άφησε το στίγμα της διοίκησής του σε όλους τους επιμέρους τομείς της πολιτικής και κοινωνικής ζωής των πόλεων
description: The aim of this master thesis is to study the correspondence of Emperor Hadrian with the cities of the eastern part of the Roman Empire. A total of 67 documents were collected and divided into two main categories: a) imperial letters and b) imperial decrees. The number of epigraphic documents far exceeds that of his predecessors and his successors on the imperial throne, which testifies sufficiently to the emperor’s interest in matters concerning the proper functioning of the empire’s administration. Moreover, the recipients of the imperial documents were not only cities or individual state bodies, but also politico-religious organizations, professional associations (trade unions) or even individuals. Not only the number, but also the variety of topics the princeps dealt with is impressive. The analysis of the documents shows that the Philhellenic emperor tackled a wide range of problems, sometimes simple to settle and sometimes more complicated and requiring technical knowledge or delicate handling. The personal experience Hadrian gained during his travels around the Empire made him, if not the best, at least one of the most knowledgeable about the problems of the Empire and, at the same time, the one who left the traces of his administration in all areas of the political and social life of the cities
NoSOCS in SDSS. V. Red Disc and Blue Bulge Galaxies Across Different Environments
Creators: name: Lopes, P. A. A.
name: Rembold, S. B.
name: Ribeiro, A. L. B.
name: Nascimento, R. S.
name: Vajgel, B.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigated the typical environment and physical properties of "red discs" and "blue bulges", comparing those to the "normal" objects in the blue cloud and red sequence. Our sample is composed of cluster members and field galaxies at $z \le 0.1$, so that we can assess the impact of the local and global environment. We find that disc galaxies display a strong dependence on environment, becoming redder for higher densities. This effect is more pronounced for objects within the virial radius, being also strong related to the stellar mass. We find that local and global environment affect galaxy properties, but the most effective parameter is stellar mass. We find evidence for a scenario where "blue discs" are transformed into "red discs" as they grow in mass and move to the inner parts of clusters. From the metallicity differences of red and blue discs, and the analysis of their star formation histories, we suggest the quenching process is slow. We estimate a quenching time scale of $\sim $ 2$-$3 Gyr. We also find from the sSFR$-$M$_*$ plane that "red discs" gradually change as they move into clusters. The "blue bulges" have many similar properties than "blue discs", but some of the former show strong signs of asymmetry. The high asymmetry "blue bulges" display enhanced recent star formation compared to their regular counterparts. That indicates some of these systems may have increased their star formation due to mergers. Nonetheless, there may not be a single evolutionary path for these blue early-type objects.
description: 27 pages, 19 figures; added minor modifications in agreement to the published version
COVID-19 ЎТКАЗГАН ЧАҚАЛОҚЛАРДА ЛИМФА ТУГУНЛАРИНИНГ МОРФОЛОГИК ХУСУСИЯТЛАРИ (ХОРАЗМ ВИЛОЯТИ ПАТОЛОГИК АНАТОМИЯ ЭКСПЕРТИЗА БЮРОСИ, ХОРАЗМ ВИЛОЯТ ПЕРИНАТАЛ МАРКАЗИ)
Creators: name: Юлдашев, Б.С
name: Каримов, Р.Х
name: Джуманиязова, Н.С.
Publisher: name: Zenodo
Year: 2024

description: илмий тадқиқот натижасида ўрганилган тезисда COVID-19 пандемия даврида хомиладор аёллардан туғилган чақалоқларнинг нима сабабдан нобуд бўлиши, уларнинг ўлими кўрсаткичлари ўртасида айнан қайси касалликллар билан яъни организмдаги кайси аъзонинг етишмовчилиги сабаб бўлаётганлиги шунингдек, чақлоқларнинг ўпкаларидаги морфологик ўзгаришлар ўрганилган.
Θρησκεία και Επιστήμη, Κοινωνιολογική Διερεύνηση
Creators: name: Κοτζαμάνη Άννα Στέφανου
Publisher: name: Aristotle University of Thessaloniki
Year: 2022
Subjects: Θρησκεία
Επιστήμη
Κοινωνία
Religion
Scientific
Society

description: Η παρούσα εργασία είχε ως στόχο τη διερεύνηση της σχέσης μεταξύ επιστήμης και θρησκείας από την οπτική της ιστορίας, της γνώσης και της κοινωνιολογίας. Μέσα από τη βιβλιογραφική έρευνα προέκυψε ότι οι σχέσεις θρησκείεας-επιστήμης είναι ιδιαίτερα πολύπλοκες και σύνθετες, ενωπ δεν περιορίζονται σε μια σχέση διαμάχης που δεν απεικονίζει την αληθινή φύση της σχέσης αυτής. Το γεγονός ότι μεταξύ των δύο διαφορετικών εκφάνσεων του ανθρωπίνου πνεύματος υπάρχουν αρκετά σημεία διέαφής οδηγεί στο συμπέρασμα ότι πρέπει να αποφευχθούν οι εύκολοι και τεχνητοί συμβιβασμοί, η συγχώνευση των δυο αυτών μεγεθών και η παράβλεψη των διαφορών τους ώστε να αναπτυχθεί ἐνας καρποφόρος διάλογος. Η ανάγκη πραγματοποίησης του διαλόγου αυτού αναγνωρίζεται τόσο εκ μέρους της επιστήμης όσο και εκ μέρους της θρησκείας. Στην παρούσα εργασία παρουσιάζονται εκπρόσωποι και των δύο τομέων, οι οποίοι εκφράστηκαν επ´ αυτού
description: The present work aimed to investigate the relationship between science and religion from the perspective of history, knowledge and sociology. Through the bibliographic research it emerged that religion-science relationships are particularly complex and not described in a relationship of controversy that does not depict the true nature of this relationship. The fact that between the two different manifestations of the human spirit there are several points pf communication, leads to the conclusion that easy and artificial compromises should be avoided in order to develop a fruitful dialogue. The need to carry out this dialogue is recognized both by science and by religion. In this work, representatives of both sector , who expressed themselves on this are presented
Assessment of Magnitude of Utilization the Skilled Birth Attendance Services in Hargeisa, Somaliland, 2016
Creators: name: Qasim, Farhia
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2016

description: Background: Pregnancy and child birth complications are the leading causes of death and disability among women of reproductive age in developing countries including Somaliland, where maternal mortality ratio is one of the highest in the world. According to the world health organization, having a skilled birth attendant at every delivery can lead to marked reductions in maternal mortality. In Somaliland, most births take place at home, being not attended by a skilled birth attendant. The utilization of maternal health services is a complex phenomenon and it is influenced by several factors. Objectives: This study assessed the magnitude of Utilization skilled birth attendee services among mothers who gave birth in the last one year in Hargeisa, Somaliland. Methods: Community-based cross-sectional study was conducted from February to May 2014. A multistage sampling technique was used to select 435 mothers. A structured, pre-tested, and interviewadministered questionnaire was used to collect data on the magnitude of Utilization of Skilled birth attendance was employed to collect the data. Data were entered and analyzed by SPSS version 22. Binary logistic regression model was used to identify associated factors. Odds ratio with 95% CI with p value of 44% was computed to assess the strength and significant level of the association Results: A total of 434 mothers were included in the analysis. Only 44% of births were attended by SBAs. In multivariate analysis, Women education ( AOR=4.4, 95% CI 2.017,9.958), ANC visit during the last pregnancy (AOR=2.2 95%CI 0.964,5.476), experience of health problem (AOR=3.2 95% CI 2.097,4.899), and favorable attitude towards danger signs of pregnancy, child birth and delivery (AOR=12.6, 95%CI 5.043,31.900) were most significant determinants of SBA use by mother. Age of respondents and distance to nearest health facility had also a significant effect on skilled birth attendant utilization with (AOR= 5, 95%CI 0.734, 44.977) and (AOR= 4.6, 95%CI 1.23, 17.74) respectively. Conclusion and recommendation: Utilization of skilled delivery attendance services was still low with a high number of deliveries being attended by unqualified persons at home. Age of respondents, distance and knowledge of danger signs of pregnancy are the determinants of use of skilled birth attendance in Hargeisa Somaliland. Promotion of universal ANC follow-up and encouragement of mothers regarding the need for SBAs during childbirth is of paramount importance. Increase the awareness of mothers about the benefits of institutional delivery and SBAs is very fundamental.
Lehrerhandbücher als Instrumente der Unterrichtsplanung in der Sekundarstufe – Eine Fallstudie
Creators: name: Rezat, Sebastian
Publisher: name: Gesellschaft für Didaktik der Mathematik
Year: 2014
Subjects: subject: 510

description: Studien zur Unterrichtsvorbereitung von Mathematiklehrkräften zeichnen bezüglich der Rolle des Schulbuches ein homogenes Bild: „Das Lehrbuch hat die zentrale Rolle in der Unterrichtsplanung inne, und zwar nicht allein das derzeit eingeführte Lehrbuch, sondern daneben auch andere in größerer Zahl“ (Bromme & Hömberg, 1981). Die se Studien sind mittlerweile über 30 Jahre alt und stammen damit aus einer Zeit, in der Computer und Internet noch keine üblichen Ressourcen waren. Ausgerechnet vor dem Hintergrund der heutigen Omnipräsenz digitaler Ressourcen zeichnet sich derzeit eine neue Entwicklung auf den Mathematikschulbuchmarkt ab. Nach einer Periode, in der Lehrerhandbücher zu Mathematikschulbüchern der Sekundarstufe im wesentlichen Lösungshefte waren, wird zu dem neuen Mathematiklehrwerk mathewerkstatt (Barzel et al. 2012) ein ausführliches Lehrerhandbuch angeboten, das durch ein für die Sekundarstufe neues Konzept gekennzeichnet ist: Zu jeder Seite des Schulbuches werden im Lehrerhandbuch ausführliche didaktische und methodische Hinweise gegeben. Insbesondere vor dem Hintergrund der heutigen Omnipräsenz digitaler Ressourcen ist die Frage nach der Rolle des Schulbuchs und des zugehörigen Lehrerhandbuchs im Rahmen der Unterrichtsvorbereitung grundsätzlich neu zu stellen. In Anbetracht der für die Sekundarstufe neuen Konzeption des Lehrerhandbuchs zur mathewerkstatt ist dabei nicht nur von Interesse, ob das Lehrerhandbuch im Rahmen der Unterrichtsvorbereitung genutzt wird, sondern wie es zum Instrument (Rabardel, 2002) der Unterrichtsvorbereitung wird. Dieser Frage wurde im Rahmen einer explorativen Fallstudie mit zwei Fällen nachgegangen.
An Exploratory Study on the Contexts of Domestic Violence in Gondar Town, Northwest Ethiopia
Creators: name: Yigzaw, Tegbar
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2005

description: Background: Increasingly domestic violence is being recognized as an important public health concern. However, we know little how and why domestic violence occurs. Objective: To obtain in-depth contextual insights about domestic violence Methods: A qualitative study was conducted in Gondar town between December 2004 and February 2005 involving women, men, victims, abusers, "Yager Shimaglies," legal bodies and professionals with vested interest and/or expertise in gender issues. Six focus group discussions and five in-depth interviews were carried out with purposively selected subjects. OpenCode software was used to code, search and sort data and conceptual framework was constructed following grounded theory approach. Results: Contextual factors (ideological, economic and politico-legal factors) deny women equal opportunity as men contributing to their subordination, predispose them to abuse and justify and perpetuate violence. Causal conditions (like economic reasons, drinking and sexual incompatibility) give rise to discontent and misunderstanding in marriage. Intervening conditions, which depend on gender norms, attitude and skills in conflict management and individual socioeconomic standing, determine whether conflicts will grow into violence. Conclusion: Domestic violence is rooted in the socioeconomic, cultural and politico-legal context that upholds men dominance. IEC, empowerment of women and reforming laws and translating them into action are recommended. Keywords: domestic violence, qualitative study, focus group discussions, in-depth interviews, OpenCode, grounded theory
The Aharonov Casher phase of a bipartite entanglement pair traversing a quantum square ring
Creators: name: Huang, Che-Chun
name: Tan, Seng Ghee
name: Chang, Ching-Ray
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We propose in this article a quantum square ring that conveniently generates, annihilates and distills the Aharonov Casher phase with the aid of entanglement. The non-Abelian phase is carried by a pair of spin-entangled particles traversing the square ring. At maximal entanglement, dynamic phases are eliminated from the ring and geometric phases are generated in discrete values. By contrast, at partial to no entanglement, both geometric and dynamic phases take on discrete or locally continuous values depending only on the wavelength and the ring size. We have shown that entanglement in a non-Abelian system could greatly simplify future experimental efforts revolving around the studies of geometric phases.
description: 7 pages, 5 figures, 1 table
Holographic non-Gaussianities in general single-field inflation
Creators: name: Isono, Hiroshi
name: Noumi, Toshifumi
name: Shiu, Gary
name: Wong, Sam S. C.
name: Zhou, Siyi
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We use holographic techniques to compute inflationary non-Gaussianities for general single-field inflation, including models with a non-trivial sound speed. In this holographic approach, the inflationary dynamics is captured by a relevant deformation of the dual conformal field theory (CFT) in the UV, while the inflationary correlators are computed by conformal perturbation theory. In this paper, we discuss the effects of higher derivative operators, such as $(\partial_μϕ\partial^μϕ)^{m}$, which are known to induce a non-trivial sound speed and source potentially large non-Gaussianities. We compute the full inflationary bispectra from the deformed CFT correlators. We also discuss the squeezed limit of the bispectra from the viewpoint of operator product expansions. As is generic in the holographic description of inflation, our power spectrum is blue tilted in the UV region. We extend our bispectrum computation to the IR region by resumming the conformal perturbations to all orders. We provide a self-consistent setup which reproduces a red tilted power spectrum, as well as all possible bispectrum shapes in the slow-roll regime.
description: 43 pages
Ιατρική αμέλεια στο περιβάλλον της πανδημίας COVID-19, από την οπτική του ιατρού
Creators: name: Μπαλτά, Μαρία Επαμεινώνδα
Publisher: name: Aristotle University of Thessaloniki
Year: 2022
Subjects: ιατρική αμέλεια
πανδημία Covid-19
σύγκρουση ιατρικών καθηκόντων
medical negligence
Covid-19 pandemic
conflict of medical duties

description: Τα τελευταία χρόνια έχει αυξηθεί ο αριθμός των υποθέσεων που απασχολούν την ποινική δικαιοσύνη και αφορούν σε ζητήματα ιατρικής αμέλειας. Η ποινική αξιολόγηση της ιατρικής πράξης απέκτησε ιδιαίτερο ενδιαφέρον στις εξαιρετικές συνθήκες που βίωσε το υγειονομικό μας σύστημα λόγω της πανδημίας Covid-19. Η μαζική εισαγωγής ασθενών στα νοσοκομεία με σοβαρές ή απειλητικές για τη ζωής του ασθένειες οδήγησαν στη μείωση του διαθέσιμου ιατρικού εξοπλισμού. Κατά τη διάρκεια της πανδημίας Covid-19 αναδείχθηκε η δυσαναλογία μεταξύ των αναγκών περίθαλψης και των διαθέσιμων πόρων. Αυτή η δυσαναλογία ανέδειξε, επίσης, το πρόβλημα της ιατρικής ευθύνης, διότι οι γιατροί βρέθηκαν μόνοι στη λήψη δύσκολων αποφάσεων σχετικά με τον «ποιον να περιθάλψουν και ποιον όχι». Η κατάσταση της πανδημίας από πολλούς χαρακτηρίσθηκε ως εφάμιλλη των καταστάσεων μαζικών καταστροφών. Οι γιατροί ήρθαν αντιμέτωποι με σύγκρουση των καθηκόντων τους. Αναγκάστηκαν να «προτεραιοποιήσουν», να «διαλέξουν» μεταξύ ασθενών (triage), προκειμένου να διασωθεί ο μεγαλύτερος αριθμός ανθρώπων. Τα περισσότερα κράτη έλαβαν μέτρα προκειμένου να αντιμετωπισθεί καλύτερα η υγειονομική κρίση που προκλήθηκε από τον Covid-19 και προκειμένου οι επαγγελματίες υγείας να μπορούν να αφοσιωθούν αποκλειστικά στην εργασία τους και στη φροντίδα των ασθενών, χωρίς τον φόβο μελλοντικών αξιώσεων. Τέτοιες καταστάσεις εγείρουν σημαντικά ζητήματα, τα οποία θα μελετήσουμε λεπτομερέστερα σ΄ αυτό το άρθρο
description: In recent years there has been an increase in the number of criminal justice cases involving medical negligence. The criminal evaluation of medical act gained special interest in the exceptional conditions that our health system experienced due to the Covid-19 pandemic. The mass arrival of patients to hospitals with serious or even life-threatening illness has led to a reduction in the available medical equipment. During the Covid-19 pandemic was highlighted the imbalance between care needs and available recourses. That imbalance highlighted, also, the problem of medical professional responsibility because doctors found themselves alone in having difficult decisions “who to treat and who not to treat” . The pandemic situation has been described by many as comparable to that of mass disasters. The doctors were faced with a conflict of duty. They had to “prioritize”, to “choose” between patients (triage), in order to save the largest number of people. Most states have taken measures to better manage health crisis situation caused by Covid-19 and in order health professionals can devote themselves exclusively to their work and to patient care, without the fear of future claims. Such situations raise important issues, which we will study in more detail in this article
Πετρογραφική ανάλυση αγγείων της Αρχαιότερης Νεολιθικής από τη θέση Μαυροπηγή-Φυλλοτσαΐρι
Creators: name: Μαυρομάτη Αναστασία Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2022
Subjects: Πετρογραφική ανάλυση
Μαυροπηγή-Φυλλοτσαΐρι
Αρχαιότερη Νεολιθική
Petrographic analysis
Mavropigi-Fillotsairi
Early Neolithic

description: Η παρούσα μεταπτυχιακή εργασία αποτελεί την πρωταρχική, μικρής κλίμακας, μελέτη τριάντα οστράκων κεραμικής, από τον οικισμό της Αρχαιότερης Νεολιθικής, Μαυροπηγή-Φυλλοτσαΐρι, με την μέθοδο της κεραμικής πετρογραφίας. Η πετρογραφική εξέταση της κεραμικής από τη θέση Μαυροπηγή-Φυλλοτσαΐρι έχει δύο βασικούς στόχους. Αρχικά, μέσω της ανασύνθεσης των τεχνολογικών διαδικασιών, διερευνάται η κεραμική παραγωγή στη θέση, αλλά και η χρήση της σε ποικίλες περιστάσεις, όπως στην προετοιμασία και κατανάλωση τροφής. Επιπρόσθετα, μέσα από την πετρογραφική ανάλυση επιχειρείται η προσέγγιση των πιθανών επαφών και των αλληλεπιδράσεων του οικισμού με άλλες θέσεις της ευρύτερης περιοχής. Κύρια επιδίωξη, αποτελεί η ένταξη των αποτελεσμάτων της έρευνας σε ένα ευρύτερο πλαίσιο μέσω της συγκριτικής μελέτης των δεδομένων με αντίστοιχα από άλλες θέσεις της βόρειας Ελλάδας, καθώς και η προσέγγιση της κοινωνικής διάστασης της κεραμικής
description: The present dissertation is the primary and small scale examination of thirty pottery sherds from the Early Neolithic settlement of Mavropigi-Fillotsairi, utilizing the method of ceramic petrography. The petrographic analysis conducted on the Mavropigi-Fillotsairi material will examine the technological processes and choices adopted by the early potters who created the pots found at the site. Based on this analysis the current investigation focuses on two main research aims: a. To provide further insights as regards pottery production and the context of its use, including food preparation and consumption, b. To explore the possible interactions and relationships between Mavropigi-Fillotsairi and other adjacent settlements, as reflected in the ceramic recipes that created the analyzed pots. The main goal is the integration of the research results in a broader context through the comparative study of data with corresponding examples from other sites in northern Greece, as well as the approach of the social dimensions of ceramics
Thermally stimulated processes in low density polyethylene
Creators: name: Markiewicz., Andrzej Janusz
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.
Multitracing Anisotropic Non-Gaussianity with Galaxy Shapes
Creators: name: Chisari, Nora Elisa
name: Dvorkin, Cora
name: Schmidt, Fabian
name: Spergel, David
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Correlations between intrinsic galaxy shapes on large-scales arise due to the effect of the tidal field of the large-scale structure. Anisotropic primordial non-Gaussianity induces a distinct scale-dependent imprint in these tidal alignments on large scales. Motivated by the observational finding that the alignment strength of luminous red galaxies depends on how galaxy shapes are measured, we study the use of two different shape estimators as a multi-tracer probe of intrinsic alignments. We show, by means of a Fisher analysis, that this technique promises a significant improvement on anisotropic non-Gaussianity constraints over a single-tracer method. For future weak lensing surveys, the uncertainty in the anisotropic non-Gaussianity parameter, $A_2$, is forecast to be $σ(A_2)\approx 50$, $\sim 40\%$ smaller than currently available constraints from the bispectrum of the Cosmic Microwave Background. This corresponds to an improvement of a factor of $4-5$ over the uncertainty from a single-tracer analysis.
description: 11 pages, 4 figures, matches accepted version
Assessment of renal function impairment among HIV patients on highly active antiretroviral therapy in selected public hospitals in Addis Abeba, Ethiopia 2018
Creators: name: Hussen, Habiba
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: Background: Human immunodeficiency virus (HIV) infection and its treatment cause renal diseases. Renal disease is associated with an increasing cause of morbidity and mortality in HIV positive individuals than in the general population. It has been also associated with adverse outcomes, such as complications of decreased renal functions and progression to renal failure. The aim of this studyistodetermine the prevalence and factors associated with renal function impairment among adult HIV patients taking highly active antiretroviral therapy inZewditu memorial hospital and saint poul's Hospital millennium medical college in 2018 GC. Methods: A facility based cross-sectional study was conducted on a total of 698 HIV positive study participants in selected government hospitals located in Addis Ababa from 1st February 2018 to 1st April 2018. HIV positive patients on ARTduring the study period where included in the study by using systematic random sampling method. The outcome variable was measured by applying ckd-epi estimation equation and renal impairment was defined as eGFR<60ml\min\1.73m2.Socio-demographic characters, clinical and laboratory records were collected using a structured questionnaire. Data wasentered using epi data after cleaned and coded. Data was analyzedbyusing SPSS statistical package. Bivariate and multivariable logistic regression where done and variables with p-value<0.05 were considered statistically significant. Result: the overall prevalence of renal impairment in this study was 3% (95%CI 1.7%-4.3%) with response rate of 98.9%. After adjustment; being cannot read and write (AOR = 4.18; 95% CI1.65,10.58) ,Bing hypertensive(AOR=1.86;95%CI1.045,3.305),being underweight(AOR =3.14 ;95% CI 1.07,9.2),being HBsAg positive (AOR= 0.376; 95%CI 0.168,0.84 ) and having proteinuria (AOR=3.55;95%CI 2.17,5.81) were found statistically significant predictors of renal impairment. Conclusion: the prevalence of renal impairment among HIV patients on HAART in this study was relatively low clinically significant. Therefore early detection of kidney disease by working on modifiable risk factors and implementation of sensitive screening techniques of renal function in persons with HIV on HAART will have an impact on the burden of disease, prevention of renal disease among this population
Nodal line resonance generating the giant anomalous Hall effect of Co$_3$Sn$_2$S$_2$
Creators: name: Schilberth, F.
name: Jiang, M. -C.
name: Minami, S.
name: Kassem, M. A.
name: Mayr, F.
name: Deisenhofer, J.
name: Koretsune, T.
name: Tabata, Y.
name: Waki, T.
name: Nakamura, H.
name: Guo, G. -Y.
name: Arita, R.
name: Kézsmárki, I.
name: Bordács, S.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Giant anomalous Hall effect (AHE) and magneto-optical activity can emerge in magnets with topologically non-trivial degeneracies. However, identifying the specific band structure features like Weyl points, nodal lines or planes which generate the anomalous response is a challenging issue. Since the low-energy interband transitions can govern the static AHE, we addressed this question in the prototypical magnetic Weyl semimetal Co$_3$Sn$_2$S$_2$ also hosting nodal lines by broadband polarized reflectivity and magneto-optical Kerr effect spectroscopy with a focus on the far-infrared range. In the linear dichroism spectrum we observe a strong resonance at 40\,meV, which also shows up in the optical Hall conductivity spectrum and primarily determines the static AHE, thus, confirms its intrinsic origin. Our material-specific theory reproduces the experimental data remarkably well and shows that strongly tilted nodal line segments around the Fermi energy generate the resonance. While the Weyl points only give vanishing contributions, these segments of the nodal lines gapped by the spin-orbit coupling dominate the low-energy optical response.
Chaos in binary star systems
Creators: name: Mardling., Rosemary Anne
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.
Life expectancy in older adults with advanced cancer: Evaluation of a geriatric assessment-based prognostic model
Creators: name: Lund, J.L.
name: Gilmore, N.
name: Giguere, J.K.
name: Islam, J.Y.
name: Mohile, S.G.
name: Duberstein, P.R.
name: Burnette, B.L.
name: Lei, L.
name: Plumb, S.
name: Vogel, V.G.
name: Loh, K.P.
name: Hanson, L.C.
name: Keil, A.P.
Publisher: name: Elsevier Ltd
Year: 2022

description: Objectives: Oncologists estimate patients' prognosis to guide care. Evidence suggests oncologists tend to overestimate life expectancy, which can lead to care with questionable benefits. Information obtained from geriatric assessment may improve prognostication for older adults. In this study, we created a geriatric assessment-based prognostic model for older adults with advanced cancer and compared its performance to alternative models. Materials and methods: We conducted a secondary analysis of a trial (URCC 13070; PI: Mohile) capturing geriatric assessment and vital status up to one year for adults age ≥ 70 years with advanced cancer. Oncologists estimated life expectancy as 0–6 months, 7–12 months, and > 1 year. Three statistical models were developed: (1) a model including age, sex, cancer type, and stage (basic model), (2) basic model + Karnofsky Performance Status (≤50, 60–70, and 80+) (KPS model), and (3) basic model +16 binary indicators of geriatric assessment impairments (GA model). Cox regression was used to model one-year survival; c-indices and time-dependent c-statistics assessed model discrimination and stratified survival curves assessed model calibration. Results: We included 484 participants; mean age was 75; 48% had gastrointestinal or lung cancer. Overall, 43% of patients died within one year. Oncologists classified prognosis accurately for 55% of patients, overestimated for 35%, and underestimated for 10%. C-indices were 0.61 (basic model), 0.62 (KPS model), and 0.63 (GA model). The GA model was well-calibrated. Conclusions: The GA model showed moderate discrimination for survival, similar to alternative models, but calibration was improved. Further research is needed to optimize geriatric assessment-based prognostic models for use in older adults with advanced cancer.
CMB signature of non-thermal Dark Matter produced from self-interacting dark sector
Creators: name: Ghosh, Dilip Kumar
name: Ghosh, Purusottam
name: Jeesun, Sk
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The basic idea of this work is to achieve the observed relic density of a non-thermal dark matter(DM) and its connection with Cosmic Microwave Background (CMB) via additional relativistic degrees of freedom which are simultaneously generated during the period $T_{\rm BBN}~{\rm to}~T_{\rm CMB}$ from a long-lived dark sector particle. To realize this phenomena we minimally extend the type-I seesaw scenario with a Dirac fermion singlet($χ$) and a complex scalar singlet ($φ$) which transform non-trivially under an unbroken symmetry $\mathcal{Z}_3$. $χ$ being the lightest particle in the dark sector acts as a stable dark matter candidate while the next to lightest state $φ$ operates like a long lived dark scalar particle. The initial density of $φ$ can be thermally produced through either self-interacting number changing processes ($3 φ\to 2 φ$) within dark sector or the standard annihilation to SM particles ($2 φ\to 2~ {\rm SM}$). The late time (after neutrino decoupling) non-thermal decay of $φ$ can produce dark matter in association with active neutrinos. The presence of extra relativistic neutrino degrees of freedom at the time of CMB can have a significant impact on $Δ\rm N_{eff}$. Thus the precise measurement of $Δ\rm N_{ eff}$ by current PLANCK 2018 collaboration and future experiments like SPT-3G and CMB-S4 can indirectly probe this non-thermal dark matter scenario which is otherwise completely secluded due to its tiny coupling with the standard model.
description: Accepted for publication in JCAP
Topological classification of systems of bilinear and sesquilinear forms
Creators: name: da Fonseca, Carlos M.
name: Futorny, Vyacheslav
name: Rybalkina, Tetiana
name: Sergeichuk, Vladimir V.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Representation Theory (math.RT)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 15A21, 37C15

description: Let $\cal A$ and $\cal B$ be two systems consisting of the same vector spaces $\mathbb C^{n_1},\dots,\mathbb C^{n_t}$ and bilinear or sesquilinear forms $A_i,B_i:\mathbb C^{n_{k(i)}}\times\mathbb C^{n_{l(i)}}\to\mathbb C$, for $i=1,\dots,s$. We prove that $\cal A$ is transformed to $\cal B$ by homeomorphisms within $\mathbb C^{n_1},\dots,\mathbb C^{n_t}$ if and only if $\cal A$ is transformed to $\cal B$ by linear bijections within $\mathbb C^{n_1},\dots,\mathbb C^{n_t}$.
description: 5 pages
Classical Spin Gravitational Compton Scattering
Creators: name: Bjerrum-Bohr, N. E. J.
name: Chen, Gang
name: Skowronek, Marcos
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We introduce a novel bootstrap method for classical Compton scattering amplitudes involving two massless gluon/graviton particles and two arbitrary-spin infinite-mass particles in a heavy-mass effective field theory context. Using a suitable ansatz, we deduce new and explicit classical spin results for gluon four and five-point infinite mass processes that exhibit exponentiated three-point factorizations to all orders in spin and feature no spurious poles. We discuss the generalization of our bootstrap to higher multiplicities and summarize future potential applications.
description: To be published in JHEP
Interference effects of two scalar boson propagators on the LHC search for the singlet fermion DM
Creators: name: Ko, P.
name: Li, Jinmian
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A gauge invariant UV-completion for singlet fermion DM interacting with the standard model (SM) particles involves a new singlet scalar. Therefore the model contains two scalar mediators, mixtures of the SM Higgs boson and a singlet scalar boson. Collider phenomenology of the interference effect between these two scalar propagators is studied in this work. This interference effect can be either constructive or destructive in the DM production cross section depending on both singlet scalar and DM masses, and it will soften the final state jets in the full mass region. Applying the CMS mono-jet search to our model, we find the interference effect plays a very important role in the DM search sensitivity, and the DM production cross section of our model is more than one order of magnitude below the LHC sensitivity at current stage.
description: 16 pages, 8 figures; published version
title: Bücher und mehr
title: die Badische Landesbibliothek als Kulturinstitution in Karlsruhe
titleType: Subtitle
Creators: name: Hiller von Gaertringen, Julia
name: Evers, Karen
Year: 2018
Subjects: subject: 020 Bibliotheks- und Informationswissenschaften

description: Die aus der Büchersammlung der badischen Markgrafen und Großherzöge hervorgegangene Badische Landesbibliothek (BLB) ist eine zentrale Institution der Informationsinfrastruktur für die Bildung und Wissenschaft in Baden‐Württemberg. Sie bietet ca. 2,6 Mio. Bände Literatur und Medien aus allen Fachgebieten; der Zuwachs beträgt jährlich ca. 45.000 Einheiten, pro Jahr erfolgen ca. 1 Mio. Entleihungen. Ihre Benutzerinnen und Benutzer können mit einer Vielzahl von Datenbanken, E‐Books und elektronischen Zeitschriften arbeiten und haben überall im Haus Zugang zum Internet. Mit diesen Dienstleistungen gewährleistet die BLB die aktuelle und bedarfsgerechte Informationsversorgung von ca. 25.000 Benutzern vor Ort. Sie unterstützt die Schulen, Hochschulen und Forschungseinrichtungen der Region und ist kompetente Partnerin von Behörden, Organisationen und Wirtschaftsunternehmen. Als Lehr‐ und Lernzentrum bietet die BLB zugleich eine attraktive Lernumgebung, ihr Schulungsprogramm unterstützt aktiv den Erwerb von Informations‐ und Medienkompetenz. Zu den wichtigsten Aufgaben der BLB gehört die Sammlung, Erschließung und Bereitstellung der Publikationen aus und über Baden; mit ihrem auf Vollständigkeit angelegten Bestand dokumentiert sie die Entwicklung der Region auf einzigartige Weise.