cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Development of a mouse model system for studying the regulated expression of CD40L
Creators: name: Cilluffo, Yekaterina Voskoboynik
Publisher: name: No Publisher Supplied
Year: 2023

description: CD4+ T cells are part of the adaptive immune response and are critical for providing signals for orchestrating the immune response. Through the expression of the CD40L, CD4+ T cells interact and activate macrophages, B-cells, dendritic cells, and CD8+ T cells. Previous data showed that during early times of activation, the CD40L mRNA is highly transcribed and rapidly degraded, while at late times transcription is decreased and the mRNA is stabilized by a polypyrimidine tracks binding complex in the 3’ UTR region.To broaden our understanding of the CD40L stability pathway and its impact on overall CD4+ adaptive immune response, we characterized the mouse CD40L 3’ UTR region, assembled a targeting construct with a deletion in the CD40L 3’ UTR stability element, and through homologous recombination generated a mouse model. Characterization of the CD40L 3’ UTR region was performed using both luciferase and DRB RNA decay assays. We concluded that region mA led to the instability of the 3’ UTR, while regions mB and mC contributed to its stability at late times post-activation. A targeting construct was designed to engineer a mouse lacking the CD40L stability region in order to determine the effect on the strength of the humoral response in these CD40LΔ5 mice. Analysis of the mutant mice revealed differences in the availability of CD40L on the surface of CD4+ cells (40% decrease in the CD40LΔ5 mice), organization of germinal centers (with CD40LΔ5 mice having more disorganized GC), and differences in IgM and IgG levels during a secondary immune response.
Singular extremals in L^1 optimal control problems: sufficient optimality conditions
Creators: name: Chittaro, Francesca
name: Poggiolini, Laura
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: In this paper we are concerned with generalised L 1-minimisation problems, i.e. Bolza problems involving the absolute value of the control with a control-affine dynamics. We establish sufficient conditions for the strong local optimality of extremals given by the concatenation of bang, singular and inactive (zero) arcs. The sufficiency of such conditions is proven by means of Hamiltonian methods. As a byproduct of the result, we provide an explicit invariant formula for the second variation along the singular arc.
Additional file 14 of Time-varying exposure to food retailers and cardiovascular disease hospitalization and mortality in the netherlands: a nationwide prospective cohort study
Creators: name: Pinho, Maria Gabriela M.
name: Koop, Yvonne
name: Mackenbach, Joreintje D.
name: Lakerveld, Jeroen
name: Simões, Mariana
name: Vermeulen, Roel
name: Wagtendonk, Alfred J.
name: Vaartjes, Ilonca
name: Beulens, Joline W. J.
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Cancer
subject: Computational Biology

description: Additional file 14. Hazard Ratios and confidence intervals for Hospitalization of general and specific cardiovascular events in relation to longitudinal exposure to neighborhood food environment – analyses stratified by age.
Η βασιλεία του Ρωμανού Δ' Διογένη (1068-1071)
Creators: name: Βασιλακίδου, Ελισάβετ Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2009
Subjects: Ρωμανός Δ' Διογένης
Η μάχη του Μαντζικέρτ
Οι Σελτζούκοι τούρκοι
Η κρίση του 11ου αιώνα
Αλπ. Αρσλαν
Ελληνικές και αραβικές πηγές για τη μάχη του Ματζικέρτ
Romanus Iv Diogenes
The battle of Mantzikert
The Seljuk turks
The crisis of 11th century
The Seljuk sultan Alp Arslan
The greak and arabic sources on the battle of Mantzikert, 1071

description: Η σύντομη βασιλεία του Ρωμανού Δ΄ Διογένη (1068-1071) τοποθετείται μέσα στο γενικότερο πλαίσιο της κρίσης του 11ου αιώνα και των συνεπακόλουθων προβλημάτων που δημιουργούσε η παρουσία εχθρών, κυρίως των Σελτζούκων Τούρκων στο ανατολικό μέτωπο της αυτοκρατορίας. Πραγματοποίησε τρεις εκστρατείες εναντίον τους, χωρίς ιδιαίτερα θεαματικές νίκες, εκτός, βέβαια, από την επίδειξη ανδρείας και της αποφασιστικότητας του αυτοκράτορα να απαλλάξει τα ανατολικά σύνορα του κράτους από την εχθρική απειλή. Η τρίτη εκστρατεία, που έληξε με την ήττα των βυζαντινών δυνάμεων στο Μαντζικέρτ το 1071 από το σελτζούκο σουλτάνο Αλπ Αρσλάν, σήμανε την αρχή της στρατιωτικής κατάρρευσης της αυτοκρατορίας στη Μικρά Ασία. Ακολούθησε ο αιματηρός εμφύλιος πόλεμος μεταξύ του έκπτωτου Ρωμανού και της δυναστείας των Δουκών, που έληξε με την τύφλωση του Ρωμανού (29 Ιουνίου 1072) και το τέλος του στις 4 Αυγούστου 1072.
description: The short reign of Romanus IV Diogenes (1068-1071) took place during the general 11th century crisis and the consequential problems created from the presence of enemies in the eastern border of the empire, especially the Seljuk Turks. Romanus carried out three expeditions against the Turks aiming to alleviate the eastern borders from hostile threats, which resulted in no spectacular victories, expect from the great bravery and determination exhibited by the emperor himself. The third expedition ended up with the defeat of the Byzantine forces at the battle of Mantzikert in 1071 from the Seljuk Sultan Alp Arslan. This signified the beginning of the Asia Minor's military collapse. The bitter civil war that followed between the deposed emperor Romanus and the dynasty of Dukes was concluded with the blindness of the former (June 29, 1072) and his subsequent death on August 4, 1072.
Spectrum of coherently backscattered light from two atoms
Creators: name: Shatokhin, Vyacheslav
name: Wellens, Thomas
name: Grémaud, Benoît
name: Buchleitner, Andreas
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a detailed analytical and numerical analysis of the inelastic coherent backscattering spectrum of laser light incident on cold atoms. We identify frequency domains where the interference contribution can be positive \emph{as well as} negative -- or exhibits dispersive character. These distinctive features are explained by reciprocity arguments and dressed state two-photon scattering amplitudes.
description: 14 pages, 9 figures
Comparison of ARIMA, ETS, NNAR and hybrid models to forecast the second wave of COVID-19 hospitalizations in Italy
Creators: name: Perone, Gaetano
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applications (stat.AP)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Coronavirus disease (COVID-19) is a severe ongoing novel pandemic that has emerged in Wuhan, China, in December 2019. As of October 13, the outbreak has spread rapidly across the world, affecting over 38 million people, and causing over 1 million deaths. In this article, I analysed several time series forecasting methods to predict the spread of COVID-19 second wave in Italy, over the period after October 13, 2020. I used an autoregressive model (ARIMA), an exponential smoothing state space model (ETS), a neural network autoregression model (NNAR), and the following hybrid combinations of them: ARIMA-ETS, ARIMA-NNAR, ETS-NNAR, and ARIMA-ETS-NNAR. About the data, I forecasted the number of patients hospitalized with mild symptoms, and in intensive care units (ICU). The data refer to the period February 21, 2020-October 13, 2020 and are extracted from the website of the Italian Ministry of Health (www.salute.gov.it). The results show that i) the hybrid models, except for ARIMA-ETS, are better at capturing the linear and non-linear epidemic patterns, by outperforming the respective single models; and ii) the number of COVID-19-related hospitalized with mild symptoms and in ICU will rapidly increase in the next weeks, by reaching the peak in about 50-60 days, i.e. in mid-December 2020, at least. To tackle the upcoming COVID-19 second wave, on one hand, it is necessary to hire healthcare workers and implement sufficient hospital facilities, protective equipment, and ordinary and intensive care beds; and on the other hand, it may be useful to enhance social distancing by improving public transport and adopting the double-shifts schooling system, for example.
description: 19 pages, 8 figures, 13 tables. The European Journal of Health Economics (2021)
A Novel Approach to 4-Benzylisoquinolines
Creators: name: Berger, U.
name: Burgemeister, T.
name: Dannhardt, G.
name: Mayer, K. K.
name: Wiegrebe, Wolfgang
Publisher: name: Universität Regensburg
Year: 1984
Subjects: subject: 540 Chemie

description: The reaction of quinone methides with 3.4-dihydroisoquinoline or isoquinoline leads to benzylisoquinoline derivatives. NMR and ms investigations als well as chemical degradation prove that benzylation takes place at C-4 of the isoquinoline nucleus. Spectroscopic data are given for all new compounds.
Φοιτητές/φοιτήτριες με προβλήματα όρασης: Προβλήματα και αντιμετώπιση
Creators: name: Καρακώστας, Παναγιώτης Χρήστου
Publisher: name: Aristotle University of Thessaloniki
Year: 2009
Subjects: Προσβασιμότητα στο πανεπιστήμιο
Τυφλοί μαθητές
Μαθητές με προβλήματα όρασης
Μαθητές με αναπηρία
Αποκλεισμός και εκπαίδευση
Ενταξιακή εκπαίδευση
Students with disabilities Exclusion and education
Inclusive education
Accessibility to university
Blind students
Students with visual impairments

description: Η παρούσα εργασία είχε ως στόχο τη διερεύνηση των συνθηκών στις οποίες οι άνθρωποι με ολική απώλεια όρασης - μειωμένη όραση, καλούνταν ή και καλούνται ακόμη να σπουδάσουν στην τριτοβάθμια εκπαίδευση στην Ελλάδα. Διερευνώνται, επίσης, όποιοι άλλοι θεσμοί ή καταστάσεις -όπως η οργάνωση και η δομή της πόλης όπου βρίσκεται το πανεπιστήμιο, τα κοινωνικά δίκτυα, οι οικογενειακές/ανθρώπινες σχέσεις, το ποσοστό της όρασης και οι δεξιότητες του ίδιου του ανθρώπου με πρόβλημα στην όραση- διαδραματίζουν σημαντικό ρόλο στην ποιότητα των σπουδών.Παρουσιάζεται το νομικό πλαίσιο που ισχύει στην Ελλάδα και αφορά σε όλες τις βαθμίδες της εκπαίδευσης των ανθρώπων με προβλήματα στην όραση, μέσα από μία ιστορική αναδρομή στο θεσμό. Επίσης, γίνεται συνοπτική αναφορά στις πολιτικές ένταξης/κοινωνικού αποκλεισμού σε σχέση με τους ανθρώπους με αναπηρίες. Επιλέχθηκε το συγκεκριμένο θέμα εξαιτίας του ιδιαίτερου ενδιαφέροντος του συγγραφέα για τη συγκεκριμένη ομάδα, της οποίας αποτελεί μέλος και ο ίδιος.
description: This given project has as a goal the dilatation of the conditions under which the people with total or partial blindness educate themselves in university level in Greece. There is also dilatation of other institutions and situations- like the organization and structure of the city in which the university exists, the social network, family/ human relationships, the percentage of vision and the dexterities of the person with the vision problem- which play an important role in the quality of education. There is a portrayal of the law framework that exists in Greece and concerns all the levels of education for the people with vision problems through a historical path in the institution. Also, there is synoptic reference in the policy of embodiment/ social exclusion concerning the handicapped. This specific subject was chosen due to the special interest of the writer for this specific team, of which he is a member himself.
Additional file 15 of Time-varying exposure to food retailers and cardiovascular disease hospitalization and mortality in the netherlands: a nationwide prospective cohort study
Creators: name: Pinho, Maria Gabriela M.
name: Koop, Yvonne
name: Mackenbach, Joreintje D.
name: Lakerveld, Jeroen
name: Simões, Mariana
name: Vermeulen, Roel
name: Wagtendonk, Alfred J.
name: Vaartjes, Ilonca
name: Beulens, Joline W. J.
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Cancer
subject: Computational Biology

description: Additional file 15. Hazard Ratios and confidence intervals for Hospitalization of general and specific cardiovascular events in relation to longitudinal exposure to neighborhood food environment – analyses stratified by levels of household income.
Influence of various atmospheres on the surface properties of silicate melts
Creators: name: Kucuk, Ahmet
name: Clare, Alexis G.
name: Jones, Linda E.
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 2000
Subjects: subject: 660

description: The surface tension of a soda-lime-silica glass melt and some commercial glass melts including an E-glass, a TV panel glass, and a soft borosilicate was measured under various atmospheres. The atmospheres included dry argon, dry air and wet air with varying amount of water vapor using the sessile drop and pendant drop arrangements. In general, the surface tension of melts decreased in the order: dry argon, dry air and wet air. OH- groups from the water vapor in the atmosphere behave as a surface-active species according to the Gibbs adsorption equation and form a monolayer on the surface with certain number of molecules according to the Langmuir adsorption theorem. The number of OH- -like molecules in the monolayer is higher for the melts containing high ionic strength ions.
ЎЗБЕКИСТОНДА ДАВЛАТ ХИЗМАТИНИ ТАРТИБГА СОЛИШДАГИ МУАММОЛАР
Creators: name: Беҳзоджон Қуролович Маликов
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: давлат хизмати
давлат хизматчиси
коррупция
этика
ислоҳот
ҳаракатлар стратегияси
ижро ҳокимияти
президент
ялпи ички маҳсулот
кадр
фуқаро
модернизация
глобаллашув

description: Мазкур мақолада Ўзбекистонда давлат хизматини тартибга солишдаги хуқуқий ва сиѐсий муаммолар, жумладан, Давлат хизмати бўйича энг долзарб муаммолардан бири давлат хизмати учун замонавий билим ва кўникмаларга, бошқарувнинг илғор усулларига эга бўлган кадрлар тайѐрлаш масаласига ва дунѐнинг кўпгина мамлакатларида давлат хизмати учун кадрларни топиш, танлаш, баҳолаш, хизмат пиллапоялари бўйлаб кўтариш, моддий ва маънавий рағбатлантиришнинг баъзи тизимлари илмий жиҳатдан тахлил қилинган
Comparing Normalization Methods for Limited Batch Size Segmentation Neural Networks
Creators: name: Kolarik, Martin
name: Burget, Radim
name: Riha, Kamil
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: The widespread use of Batch Normalization has enabled training deeper neural networks with more stable and faster results. However, the Batch Normalization works best using large batch size during training and as the state-of-the-art segmentation convolutional neural network architectures are very memory demanding, large batch size is often impossible to achieve on current hardware. We evaluate the alternative normalization methods proposed to solve this issue on a problem of binary spine segmentation from 3D CT scan. Our results show the effectiveness of Instance Normalization in the limited batch size neural network training environment. Out of all the compared methods the Instance Normalization achieved the highest result with Dice coefficient = 0.96 which is comparable to our previous results achieved by deeper network with longer training time. We also show that the Instance Normalization implementation used in this experiment is computational time efficient when compared to the network without any normalization method.
Combinatorics of the change-making problem
Creators: name: Adamaszek, Michal
name: Niewiarowska, Anna
Publisher: name: arXiv
Year: 2008
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05D99, 68R05

description: We investigate the structure of the currencies (systems of coins) for which the greedy change-making algorithm always finds an optimal solution (that is, a one with minimum number of coins). We present a series of necessary conditions that must be satisfied by the values of coins in such systems. We also uncover some relations between such currencies and their sub-currencies.
description: 18 pages, 4 figures Added a partial proof of conjecture 7.6 + some minor changes
Using (4+1) split and energy conditions to study the induced matter in 5D Ricc-flat cosmology
Creators: name: Ping, Yongli
name: Liu, Hongya
name: Xu, Lixin
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We use $(4+1)$ split to derive the 4D induced energy density $ρ$ and pressure $p$ of the $5D$ Ricci-flat cosmological solutions which are characterized by having a bounce instead of a bang. The solutions contain two arbitrary functions of time $t$ and, therefore, are mathematically rich in giving various cosmological models. By using four known energy conditions (null, weak, strong, and dominant) to pick out and study physically meaningful solutions, we find that the 4D part of the $5D$ solutions asymptotically approach to the standard 4D FRW models and the expansion of the universe is decelerating for normal induced matter for which all the four energy conditions are satisfied. We also find that quintessence might be normal or abnormal, depending on the parameter $w$ of the equation of state. If $-1\leqslant w
description: 10 pages. To appear in IJMPA
Nickel sulphide: new results to optimise the heat soak test for thermally toughened building glasses
Creators: name: Kasper, Andreas
name: Bordeaux, Frédéric
name: Duffrène, Lucas
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 2000
Subjects: subject: 660

description: The spontaneous failure of tempered facade glazings has been known as a security and reputation problem of these beautiful parts of the surface of modern buildings since the late fifties. By kinetic investigations on synthetic nickel sulphides and by statistical analysis of the breakage of heat soak test ovens it is shown that this problem can be solved. If the test is done in a right and careful way, at temperatures of (290 ± 10) °C, holding time need not be longer than 2 to 3 h to fulfil the implicit requirements of the German Standard (DIN 18516). On the other hand, literature data show that it should be possible to further shorten this holding time if it were possible to heat up faster and more homogeneously the glass to be tested.
Nehmt einander an, wie Christus euch angenommen hat, zu Gottes Lob
Creators: name: Markert, Michael
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 54 Nr. 1 (2005): Ökumenische Rundschau, Band 54, Heft 1
Alkali ion migration control from flat glass substrates
Creators: name: Janke, Nikolas
name: Grassmé, Oliver
name: Weißmann, Rudolf
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 2000
Subjects: subject: 660

description: Sodium diffusion from flat glass substrates during annealing changes properties of refined flat glass. In the ease of the development of the CuInSe2 thin film solar eell, annealing at 550 °C is necessary for the formation of suitable crystalline phases. Sodium diffusing from the soda-lime-silica glass substrate influences crystal growth and the main electrical parameters of the solar cell. Different possibilities in sodium ion migration control are presented, considering the influence of glass composition on sodium diffusion and its chemical potential as well as passivation of sodium-containing glasses by diffusion barriers. Experimental results in connection with the thin film solar cell show that sodium-free substrates or glass compositions which immobilise sodium at tetrahedral sites of boron oxide or alumina can be used without further surface treatment. Soda-lime-silica glass with sputter-deposited AI2O3 and BiOx thin films or CVD coatings (SiNx: H, SiOx) as diffusion barrier coatings shows promise as a cheap substrate material. Alternatively, dealkalisation of soda-lime-silica glass in HCl atmosphere leads to silica-rich surfaces with excellent barrier properties. The investigations are carried out using various surface analytical tools like Auger Electron Spectroscopy (AES), X-Ray Diffractommetry under Grazing Incidence (GI-XRD), high-resolution Scanning Electron Microscopy (SEM), and Fourier Transform Infrared spectroscopy (FTIR).
Study of radiation-induced defects in fluoride-phosphate glasses by means of optical absorption and EPR spectroscopy
Creators: name: Ebeling, Polina
name: Ehrt, Doris
name: Friedrich, Manfred
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 2000
Subjects: subject: 660

description: For the X-ray irradiated fluoride-phosphate (EP) glasses with different phosphate eontent (from 0 to 20 mol%), a number of different radiation-induced defect centers (DC) were detected, which can be subdivided into three groups: phosphate, oxygen and fluorine related DC. The phosphate and oxygen related defects are paramagnetic, their optical absorptions were established by means of band separation and correlation to EPR signals. The non-paramagnetic fluorine-related color centers (FD centers) were found for FP glasses with lower (≤ 2 mol%) phosphate content by means of band separation of induced spectra of optical absorption and annealing experiments.
Παράγοντες που συντελούν στη συγκράτηση του πληθυσμού της υπαίθρου
Creators: name: Θάνος, Χαράλαμπος Ευαγγέλου
Publisher: name: Aristotle University of Thessaloniki
Year: 2009
Subjects: Υπαιθρος
Πληθυσμός
Παράγοντες κοινωνικοί
Οικονομικοί παράγοντες
Αιτίες μετανάστευσης
Countryside
Population
Social factors
Economical factors
Reasons of immigration

description: Τα τελευταία χρόνια, παρατηρείται μία μείωση του πληθυσμού των υπαίθριων περιοχών στη χώρα μας. Το δυναμικότερο κομμάτι αυτού του πληθυσμού, οι νέοι, τείνουν να την εγκαταλείπουν ολοένα και περισσότερο. Σκοπός της παρούσας έρευνας είναι να προσδιοριστούν οι παράγοντες που συντελούν στην συγκράτηση και στην απώθηση του πληθυσμού αυτών των περιοχών.Για την διεξαγωγή της έρευνας επιλέχθηκαν δύο αγροτικοί οικισμοί: η Ανάβρα, ένα ορεινό κτηνοτροφικό χωριό του νομού Μαγνησίας που τα τελευταία χρόνια παρατηρήθηκε μείωση στον πληθυσμού της και ο Άγιος Σεραφείμ, πεδινό χωριό του νομού Φθιώτιδας που τα τελευταία χρόνια ο πληθυσμός του αυξήθηκε. Ο υπολογισμός του δείγματος έγινε με βάση την ενστρωματωμένη τυχαία δειγματοληψία κατανομής κατά Neyman και για την δειγματοληπτική έρευνα χρησιμοποιήθηκαν ερωτηματολόγια συνέντευξης.Τα αποτελέσματα της έρευνας έδειξαν ότι οι παράγοντες που συμβάλλουν στην συγκράτηση και στην απώθηση του πληθυσμού της υπαίθρου είναι τόσο οικονομικής όσο και κοινωνικής φύσης. Η βαρύτητα του κάθε παράγοντα εξαρτάται άμεσα και από τα ατομικά χαρακτηριστικά του κάθε άτομου, όπως την ηλικία, το φύλο και το μορφωτικό επίπεδο. Σίγουρο είναι πως για να μπορέσουν τα χωρία της ελληνικής υπαίθρου να συγκρατήσουν αλλά και να εκλύσουν επιπλέον πληθυσμό, είναι αναγκαίος ο συνδυασμός οικονομικών αλλά και κοινωνικών μέτρων.
description: Over the past few years, a reduction of the population of rural areas has been observed. The most active part of the particular population, young people, tends to abandon those areas more and more. The aim of this research is to identify the factors that contribute either to attract or keeping away the population from these areas.Two rural areas have been chosen as case studies in this research; Anavra in the province of Magnisia and Agios Serafeim, in the province of Fthiotida. The first one, Anavra, is a mountainous village that bases its economy on farming and its population has been significantly decreased, contrary to the second one, Agios Serafeim, where its residents have been increased. The calculation of the sample was done on the basis of Neyman's layered random sampling distribution and interview questionnaires were used for the sample collection. The results of the research have shown that the factors contributing either to the gathering or the repulsion of people towards rural areas are both of an economical and a social nature. The importance of each factor strongly depends on the personal characteristics of each individual, such as their age, sex and their level of education. It is certain, that in order for the Greek villages to keep their residents and attract more population, a combination of economic and social measures need to be taken.
Temperature Dependent Energy Diffusion in Chaotic Spin Chains
Creators: name: Zanoci, Cristian
name: Swingle, Brian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the temperature dependence of energy diffusion in two chaotic gapped quantum spin chains, a tilted-field Ising model and an XZ model, using an open system approach. We introduce an energy imbalance by coupling the chain to thermal baths at its boundary and study the non-equilibrium steady states of the resulting Lindblad dynamics using a matrix product operator ansatz for the density matrix. We define an effective local temperature profile by comparing local reduced density matrices in the steady state to those of a uniform thermal state. We then measure the energy current for a variety of driving temperatures and extract the temperature dependence of the energy diffusion constant. For the Ising model, we are able to study temperatures well below the energy gap and find a regime of dilute excitations where rare three-body collisions control energy diffusion. A kinetic model correctly predicts the observed exponential increase of the energy diffusion constant at low temperatures. For the XZ model, we are only able to access intermediate to high temperatures relative to the energy gap and we show that the data is well described by an expansion around the infinite temperature limit. We also discuss the limitations of the particular driving scheme and suggest that lower temperatures can be accessed using larger baths.
description: 13 pages, 8 figures
The possibilities and limitations of heterogeneous process migration
Creators: name: Smith, P. W.
Publisher: name: University of British Columbia
Year: 2009

description: Heterogeneous Process Migration is a technique that allows an active program to move between computers of differing architectures. While the program is executing, a migration tool will pause the program, locate the data values within the program's memory, convert them to a suitable format for the destination machine, then reconstruct the program on the destination machine so that it will continue executing correctly. Although a small number of heterogeneous migration mechanisms have been proposed, few of them have been constructed, and none have yet resulted in a mature and efficient implementation. The Tui system has been constructed to provide an efficient migration tool for use on four common architectures within the Unix environment. Implementation lessons were learned while optimizing the Tui system to gain performance. Tui has been used to derive a definition of migratibility. All other migration implementations have assumed that the program must be written in a type-safe language, or in a type-safe subset of a language. Since Tui has been designed to support heterogeneous migration of common languages that are non-type-safe, a survey of non-migratible language features has been undertaken. From this study, a definition for migratibility has been created, a framework for designing a migration tool has been given, and a comparison between migratibility and type-safety has shown that the two concepts are similar, yet different.
К ВОПРОСУ О ПОНЯТИИ МИГРАЦИИ И МИГРАЦИОННЫХ ПРОЦЕССОВ В РЕСПУБЛИКЕ УЗБЕКИСТАН
Creators: name: Журабек Чориевич Гойибов
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: трудовая миграция
социальная помощь
государственные органы
международно-правовые отношения
трудоустройство
международное право

description: В статье на основе изучения междунардных и отечественных нормативно-правовых актов в сфере миграции, мнений отечественных и зарубежных ученых проанализирована современная система миграционного законодательства Республики Узбекистан в области правовой, финансовой и материальной поддержки трудовых мигрантов
Elektronenstoßinduzierter Verlust der Substituenten an C-5 und C-8 bei 1,2,3,4-Tetrahydroisochinolinen, 4. Mitt.: Untersuchungen zum Mechanismus
Creators: name: Mayer, K. K.
name: Stöber, G.
name: Wiegrebe, Wolfgang
Publisher: name: Universität Regensburg
Year: 1984
Subjects: subject: 540 Chemie

description: Beim Elektronenstoß-induzierten Zerfall der in Mitt. 1-3 beschriebenen Tetrahydroisochinoline 1-19 werden die Substituenten an C-5 und C-8 in einstufiger Reaktion abgespalten. Anwendungsbreite und Mechanismus dieser Fragmentierung werden untersucht. The molecular ions of the tetrahydroisoquinolines 1-19 lose substituents at C-5 and C-8 in a one-step reaction. Scope and mechanism of this unusual fragmentation are studied.
СПОРТЧИЛАРНИНГ ЖИСМОНИЙ ТАЙЁРГАРЛИК ЖАРАЁНИНИНГ ФАРМАКОЛОГИК ТАЪМИНОТИ
Creators: name: Болта Абдугафарович Кахаров
name: Тахир Тўҳтаевич Адилбеков
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: фармакалогия
спортчилар
назорат ва тажриба гурухлари
церулоплазмин воситаси
функционал ўзгаришлар
бир мартали ва такрорий жисмоний юкламалар.

description: Мақолада бир марталик ва такрорий жисмоний юкламалар жараѐнида церулоплазминнинг эритроцитларни сорбцион имкониятини фаоллаштириш таъсирини ўрганиш натижалари хақида маълумот берилган. Олинган натижаларда тажриба гурухларида бир суткали бир марталик жисмоний юкламадаги субмаксимал қувватли иш хажми жараѐнида 20% ли церулоплазмин препаратини физиологик меъѐрни киритиши натижасида эритроцит мембраналарида эндотоксин миқдорини камайтиришга олиб келиши кузатилган
Postmortem analyses of salvaged conventional silica bricks from glass production furnaces
Creators: name: Wereszczak, Andrew
name: Wang, Hsin
name: Karakus, Musa
name: Curtis, Warren
name: Aume, Victor
name: VerDow, Dennis
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 2000
Subjects: subject: 660

description: The microstructure, phase content, and thermal conductivity of salvaged conventional silica bricks from float glass and TV-panel glass production furnaces were examined as a function of position through the brick, and compared with the original, unaltered brick materials. The silica brick from the float glass furnace was in service for approximately 10 years while that for the TV-panel glass furnace was for approximately 6 1/2 years. The microstructure and phase content in both salvaged bricks showed gradients, from tridymite at the bricks' cold-face ends, to cristobalite at their hot-face end even though both bricks were an initial mixture of tridymite and cristobalite to begin with. The thermal conductivity of both bricks had increased as a consequence of these phase and microstructural changes. Α thermal analysis model predicted that such changes would result in an increase in the bricks' cold-face temperature and heat content during service. The initially-produced temperature gradients and environment caused microstructural changes in the silica brick; however, the cause-and-effect relationship between temperature/environment and microstructural changes in the brick likely became mutually reversible once the microstructural changes initiated and the thermal conductivity of the brick started to change as a consequence.
Τρισδιάστατη αναπαράσταση του μυοσκελετικού συστήματος στην περιοχή του γόνατος με μαγνητική τομογραφία
Creators: name: Καραγιαννίδης, Ευάγγελος Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2009
Subjects: Γόνατο
Τρισδιάστατη απεικόνιση
Μαγνητική Τομογραφία
Ρήξη προσθίου χιαστού συνδέσμου
Λογισμικό
Αρχιτεκτονική ανατομία
Knee joint
3dimension representation
MRI magnetic resonance imaging
Anterior cruciate ligament injury
Software
Knee architecture

description: H πυρηνική μαγνητική τομογραφία (MRI), είναι μια μέθοδος ακριβούς απεικόνισης των εσωτερικών οργάνων του σώματος. Σκοπός της έρευνας ήταν η εξέλιξη της τεχνογνωσίας της μεθόδου καταγραφής και επεξεργασίας εικόνας από μαγνητικό τομογράφο για ερευνητικούς σκοπούς. Μετρήθηκε ο μοχλοβραχίονας του επιγονατιδίου τένοντα, του ημιτενοντώδους μυός και το μήκος τένοντα του ημιτενοντώδους σε άτομα υγιή και άτομα με ρήξη πρόσθιου χιαστού. Το δείγμα αποτέλεσαν Ν=10 εθελοντές με μέσο όρο ηλικιών τα 42 έτη, 5 ήταν υγιή άτομα με διάγνωση ιατρού και 5 με ρήξη προσθίου χιαστού και χειρουργική αποκατάσταση με ταινία από τον πρόσθιο επιγονατιδικό σύνδεσμο. Τα άτομα τοποθετήθηκαν στον τομογράφο με γωνία 30 μοιρών στο γόνατο. Εγινε λήψη μαγνητικών τομογραφιών, ακολούθως αναδομήθηκε το τρισδιάστατο μοντέλο της άρθρωσης του γόνατος με το λογισμικό 3DDoctor, και σε συνέργεια με το λογισμικό Autocad υπολογίστηκαν τα αρχιτεκτονικά χαρακτηριστικά. Ο μοχλός της επιγονατίδας όπως καταγράφτηκε στην παρούσα έρευνα ήταν 49,65 mm, του ημιτενοντώδη μυός ήταν 29,27 mm. Το μήκος του τένοντα του ημιτενοντώδους εντοπίστηκε στα 16,91 cm. Δεν σημειώθηκαν στατιστικά σημαντικές διαφορές ανάμεσα σε υγιείς και "ασθενείς". Στατιστικά σημαντικές διαφορές ανάμεσα στις δύο και τρεις διαστάσεις εντοπίστηκαν στο μοχλό της επιγονατίδας. Εξαιρετική σημασία θα πρέπει να δοθεί στο μήκος του τένοντα του ημιτενοντώδη που παρουσιάζει διαφορές με το μήκος που του απέδιδαν οι ερευνητές.
description: Magnetic resonance imaging is a visualization method of inter human body structures. Aim of the present study was the mri recording method and picture processing development for research purposes. Patella tendon and semitedinosus moment arm were determined as well as semitedinosus tendon length. Eight males and two females(n=10) with mean age of 42 years old participated in the research. Five of them had anterior cruciate ligament injury and surgical reconstruction with tape from the anterior patellar tendon. Subjects were posed on mri table with 30 Knee angle. Magnetic resonance images were recorded, 3ddoctor software was used to reconstruct a 3d model of knee ligament. Also Autocad 2009 was used in order to determine architectonic characteristics. Patella tendon moment arm determined at 49,65 mm, semitedinosus moment arm was 29,27 mm. Semitedinosus tendon length was determined at 16,91 cm. No statistical significant differences were recorded between healthy and injured subjects. Statistical significant differences between 2d and 3d were recorded on patella moment arm. Great interest were caused by the semitedinosus tendon length differences with other researches witch should be investigated further.
Analysis of carbon content in direct-write plasmonic Au structures by nanomechanical scanning absorption microscopy
Creators: name: Chien, Miao-Hsuan
name: Shawrav, Mostafa M.
name: Hingerl, Kurt
name: Taus, Philipp
name: Schinnerl, Markus
name: Wanzenboeck, Heinz D.
name: Schmid, Silvan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The determination of the chemical content is crucial for the quality control in high-precision device fabrication and advanced process development. For reliable chemical composition characterization, certain interaction volume of the target material is necessary for conventional techniques such as energy-dispersive X-ray spectroscopy (EDX) and electron energy loss spectroscopy (EELS). This remains however a challenge for nanostructures. We hereby propose an alternative technique for measuring chemical composition of nanostructures with limited volume. By measuring the differences in the optical absorption of the nanostructure due to the differences in the chemical composition with the resonance frequency detuning of a nanomechanical resonator as well as the assistance of the analytical optical modelling, we demonstrate the possibility of characterizing the carbon content in the direct-write focused electron beam induced deposition (FEBID) gold nanostructures.
description: 14 pages, 3 figures
Collaborative study into the analysis of total selenium and selenium valence states in glass - a general method by hydride generation atomic absorption spectrometry and photometry : Report of the International Commission on Glass (ICG) Technical Committee 2 "Chemical Durability and Analysis"
Creators: name: Guadagnino, Emanuel
name: Çorumluoğlu, Orhan
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 2000
Subjects: subject: 660

description: Whilst the determination of total selenium in glass is of great relevance to environmental purposes, the measurement of the oxidation states of selenium which may arise under different redox conditions may contribute to clarify the mechanisms of colour formation. In the proposed method, the determination of total selenium is carried out by hydride generation atomic absorption spectrometry (HGAAS) on three different glasses covering the range of selenium content between 10 and 130 mg/kg of glass. To prevent losses during the decomposition step, selenium is converted into a nonvolatile form as selenate (Se6+). When the sample is decomposed, the HCl Solution (c(HC1) = 10 mol/l) is made and selenium is pre-reduced to Se4+ by heating for 2 h at 80 °C. The determination of selenium oxidation states requires a stepwise approach. The measurement of Se0 is based on its insolubility in HF. After the sample is decomposed, Se0 is filtered off, dissolved from the filter with a HBr-Br2 mixture and finally measured by HGAAS. Se4+ and Se6+ are recovered in the filtrate of the same sample and determined together after conversion of Se4+ into Se6+. Se4+ is determined in the same filtrate by photometry with o-phenylenediamine (OPDA).
ПСИХОЛОГИЯДА РАҚАМЛИ ТЕХНОЛОГИЯНИ ҚЎЛЛАШГА ДОИР ЗАМОНАВИЙ ҚАРАШЛАР
Creators: name: Маъсума Абдурахмон Қизи Саъдуллаева
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: Психика
психология
рақамли технология
таҳлил
метод
ѐш даврлари
таълим
педагогика

description: Мазкур мақолада буганги кундаги психология фани ривожи ва унинг ҳар бир соҳа учун тутган ўрнини ва вазифаларини илмий таҳлил этишга ҳаракат қилинган. Чунки кўпгина ривожланган мамлакатлар мисолида кўрадиган бўлсак психология фани аниқ фанлар қаторига қўшилиб бормоқда
Mining the Stars: Learning Quality Ratings with User-facing Explanations for Vacation Rentals
Creators: name: Kornilova, Anastasiia
name: Bernardi, Lucas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: Online Travel Platforms are virtual two-sided marketplaces where guests search for accommodations and accommodation providers list their properties such as hotels and vacation rentals. The large majority of hotels are rated by official institutions with a number of stars indicating the quality of service they provide. It is a simple and effective mechanism that contributes to match supply with demand by helping guests to find options meeting their criteria and accommodation suppliers to market their product to the right segment directly impacting the number of transactions on the platform. Unfortunately, no similar rating system exists for the large majority of vacation rentals, making it difficult for guests to search and compare options and hard for vacation rentals suppliers to market their product effectively. In this work we describe a machine learned quality rating system for vacation rentals. The problem is challenging, mainly due to explainability requirements and the lack of ground truth. We present techniques to address these challenges and empirical evidence of their efficacy. Our system was successfully deployed and validated through Online Controlled Experiments performed in Booking. com, a large Online Travel Platform, and running for more than one year, impacting more than a million accommodations and millions of guests.
description: 8 pages
Πηγές και επιδράσεις του ιστορικού έργου του Δούκα
Creators: name: Νίκου, Δημήτριος Μιχαήλ
Publisher: name: Aristotle University of Thessaloniki
Year: 2009
Subjects: Δούκας [Μιχαήλ}
Βυζαντινοτουρκική ιστορία
Αλωση Κωνσταντινουπόλεως 1453
Νικηφόρος Γρηγοράς
Doukas [Michael]
Historia turcobyzantina
The fall of Constantinople 1453
Nicephoros Gregoras

description: Σκοπός της εργασίας είναι η συστηματική εξέταση των πηγών του ιστορικού έργου του Δούκα και των επιδράσεών του σε άλλα ιστορικά έργα. Εξετάζονται όλα τα ιστορικά και ρητορικά έργα που αναφέρονται ή αφορούν στην εποχή που περιγράφει ο Δούκας στην Ιστορία του και συγκρίνονται με το ιστορικό του έργο αυτά τα οποία διαπιστώνεται ότι περιγράφουν παρόμοια γεγονότα. Από την εξέταση και τη σύγκριση προκύπτουν ότι ο Δούκας έχει διαβάσει και έχει χρησιμοποιήσει το ιστορικό έργο του Νικηφόρου Γρηγορά (για τα γεγονότα μέχρι το 1354) και το έργο του Ιωάννη Αναγνώστη (για την άλωση της Θεσσαλονίκης του 1430), πιθανόν και το ιστορικό έργο του Ιωάννη Στ΄ Καντακουζηνού. Από τη σύγκριση του έργου του Δούκα με τα ιστορικά έργα των συγχρόνων του ιστορικών, Λαόνικου Χαλκοκονδύλη, Γεωργίου Σφραντζή και Μιχαήλ Κριτόβουλου, αποδεικνύεται ότι δεν υπάρχουν αλληλο- επιδράσεις, όπως φυσικά δεν υπάρχει και επίδραση από τα Βραχέα Χρονικά.
description: The purpose of this work is to examine systematically the sources of the History of Doukas and his influences on the historical works of his contemporary authors. The comparison of the Doukas’ History with other historical and rhetoric works that narrate the same historical events, allow us to sum up the following conclusions. Doukas had obviously read and used the Roman History of Nikephoros Gregoras (for the facts until the 1354), as well as the Chronicle of John Anagnostes (about the fall of Thessalonica in 1430), and perhaps the History of John VI Cantacuzenos. The examination of the historical works of Laonikos Chalkokondyles, George Sphrantzes, Michael Critoboulos and the Βραχέα Χρονικά of the 14th and 15th centuries has shown that there are no interactions between those and the History of Doukas.
ЖИНОЯТЧИ ХУЛҚИНИ ТАҲЛИЛ ҚИЛИШДА ПРОФАЙЛИНГ ТЕХНОЛОГИЯСИНИ ҚЎЛЛАШ ИМКОНИЯТЛАРИ
Creators: name: Мирзаакрам Собиржонович Қодиров
name: Эркинбай Ниязметович Сатторов
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: профайлинг
профиль
психологик портрет
жиноят
криминал
психотип
технология
қотиллик

description: Мазкур мақолада дастлабки терговни ташкил этиш босқичида профайлинг технологиясининг ахамиятли жиҳатлари кўрсатиб ўтилган. Шунингдек, криминал профайлингни дастлабки терговни ташкил этиш босқичида қўллаш бўйича жаҳон етакчи психологларининг қарашлари ва криминал психотиплар ҳақида батафсил маълумотлар келтирилган. Шунингдек, мақолада профайлингдан жиноятчи шахсини аниқлашда фойдаланиш имкониятлари кўрсатиб ўтилган
Chemical modelling of dust-gas chemistry within AGB outflows III. Photoprocessing of the ice and return to the ISM
Creators: name: Van de Sande, M.
name: Walsh, C.
name: Millar, T. J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: To explain the properties of dust in the interstellar medium (ISM), the presence of a refractory organic mantle is necessary. The outflows of AGB stars are among the main contributors of stellar dust to the ISM. We present the first study of the refractory organic contribution of AGB stars to the ISM. Based on laboratory experiments, we included a new reaction in our extended chemical kinetics model: the photoprocessing of volatile complex ices into inert refractory organic material. The refractory organic feedback of AGB outflows to the ISM is estimated using observationally motivated parent species and grids of models of C-rich and O-rich outflows. Refractory organic material is mainly inherited from the gas phase through accretion onto the dust and subsequent photoprocessing. Grain-surface chemistry, initiated by photodissociation of ices, produces only a minor part and takes place in a sub-monolayer regime in almost all outflows. The formation of refractory organic material increases with outflow density and depends on the initial gas-phase composition. While O-rich dust is negligibly covered by refractory organics, C-rich dust has an average coverage of $3-9\%$, but can be as high as $8-22\%$. Although C-rich dust does not enter the ISM bare, its average coverage is too low to influence its evolution in the ISM or significantly contribute to the coverage of interstellar dust. This study opens up questions on the coverage of other dust-producing environments. It highlights the need for an improved understanding of dust formation and for models specific to density structures within the outflow.
description: 18 pages, 16 figures, 6 tables, accepted for for publication in the Monthly Notices of the Royal Astronomical Society
СУЩНОСТЬ ОБЩЕНИЯ ПРЕПОДАВАТЕЛЯ
Creators: name: Дилрабо Джалиловна Халимова
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: виртуальный характер
реального учебного процесса
традиционные элементы.

description: В традиционной, особенно советской педагогике основу общения преподавателя и студента составляли идеологические требования. Основной акцент здесь был сделан на коллективизм и товарищества. С изменением общественных отношений и традиционных ценностей менялась и суть характера общения преподавателя и студента. В их общениях больше стало свободы слово и мысли человека. Но с другой стороны в этих отношениях большое место стало занимать и некоторые негативные элементы общения, как индивидуализм, эгоизм и карьеризм. А это, прежде всего, связано с влиянием рыночных отношений на межличностные отношения человека в обществе
Rückkehr der Vollbeschäftigung oder Einzug des Grundeinkommens?
Creators: name: Sommer, Micheal
Publisher: name: UB Tübingen
Year: 2015

description: Michael Sommer, Vorsitzender des Deutschen Gewerkschaftsbundes, spricht sich zugunsten eines Vollbeschäftigungskonzepts aus, für dessen Realisierung er den Staat in der Pflicht sieht.

Michael Sommer, chairman of Germany's Federation of Trade Unions, takes a stand in favour of full employment, financed by state spending. Opting for a minimum wage, he speaks out strongly against basic income schemes.
description: Ethik und Gesellschaft, Nr. 2 (2008): Rückkehr der Vollbeschäftigung oder Einzug des Grundeinkommens?