cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Προσδιορισμός των μηχανισμών παρέμβασης του οικογενειακού περιβάλλοντος στην επίδοση των μαθητών
Creators: name: Κουτσούλης, Μιχάλης
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 1998

description: The present study examines basic characteristics of parental behavioral factors and their influence on high school students' attitude towards school, academic self-concept, educational aspirations, and achievement in a holistic model. A stratified random sample representative sample for the Lyceum students in Cyprus. The data were analyzed with LISREL.8 (Joreskog & Sorbom, 1993). Results indicated that, within the parental behavioral variables, pressure and help had a negative effect while psychological support and time monitoring had a positive influence. Academic self-concept and educational aspirations were found to have strong effect on high school students achievement. Results suggest that students need psychological support and moderate levels of monitoring with low levels of pressure and help from their parents. This synthesis of parental behavior can reinforce students' motivation for learning and achievement. Finally, high academic self-concept and educational aspirations are basic motivational factors that parents and educators should seek as necessary educational outcome.
description: Παιδαγωγική Επιθεώρηση, Vol. 28 (1998)
Chemical Equilibrium in Heavy Ion Collisions: Rapidity Dependence
Creators: name: Becattini, F.
name: Cleymans, J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Particle yields in heavy ion collisions show an overwhelming evidence for chemical or relative chemical equilibrium at all beam energies. The rapidity dependence of the thermal parameters $T$ and $μ_B$ can now be determined over a wide range of rapidities and show a systematic behavior towards an increase in $μ_B$ away from mid-rapidity.
description: 5 pages, 4 figures
Design of fault-tolerant virtual execution environments for cyber-physical systems
Creators: name: Jablkowski, Boguslaw
Publisher: name: Technische Universität Dortmund
Year: 2019
Subjects: subject: Cyber-physical systems
subject: CPS
subject: Virtualization
subject: Real-time systems
subject: High availability
subject: Embedded systems
subject: 004
subject: Cyber-physisches System
subject: Virtualisierung
subject: Echtzeitsystem
subject: Hochverfügbarkeit
subject: Eingebettetes System

description: The last decade revealed the vast economical and societal potential of Cyber-Physical Systems (CPS) which integrate computation with physical processes. In order to better exploit this potential, designers of CPS are trying to take advantage of novel technological opportunities provided by the unprecedented efficiency of today's hardware. There are, however, considerable challenges to this endeavor. First, there is a strong trend towards softwarization. Functions that were originally implemented in hardware are now being increasingly realized in software. This fact, together with the ever growing functionality of modern CPS, translates to unrestrained code generation which, in turn, directly influences their safety and security. Second, the spreading adaptation of multi-core and manycore architectures, due to their considerable increase in computation power, additionally generates issues related to timing properties, resource partitioning, task mapping and scalability. In order to overcome these challenges, this thesis investigates the idea of adopting virtualization technology to the domain of CPS. Several research questions originate from this idea and the following work aims at answering those questions. It addresses both technological and methodological issues. With respect to the technological aspects, it investigates problems and proposes solutions related to timing properties of a virtualized execution platform as well as the thereon based high availability technique. Regarding the methodological aspects, it discusses models and methods for the planing of safe and efficient virtualized CPS compute and control clusters, proposes architectures for the development and verification of virtualized CPS applications as well as for the testing of non-functional characteristics of the underlying software and hardware infrastructure. Further, through a set of experiments, this thesis thoroughly evaluates the proposed solutions. Finally, based upon the provided results and some new considerations regarding the requirements of future CPS applications, it gives an outlook towards a generic virtualized execution platform architecture for emerging CPS.
recOrder: Open-source pipeline for computational imaging of physical and molecular architecture (SPIE-ABC 2021)
Creators: name: Foltz, Cameron D
name: Mehta, Shalin B
name: Yeh, Li-Hao
name: Ivanov, Ivan
name: Chhun, Bryant B
name: Mei, Ryan
name: Byrum, Janie R
name: McMorrow, Aidan
name: Yabut, Odessa R
name: Cocas, Laura
Publisher: name: Zenodo
Year: 2021
Subjects: computational microscopy
label-free imaging
open-source
density
anisotropy
myelination
organelle architecture

description: Lightning presentation for SPIE Advanced Biophotonics Conference 2021. Abstract: Correlative label-free and fluorescence imaging enables comprehensive and scalable mapping of the architectural order of biological systems to investigate a wide variety of questions in tissue pathology and live-cell dynamics. Current imaging techniques require tight integration of complex optical systems and computational reconstruction methods that are often inaccessible to the end user. We report an open-source computational imaging platform, recOrder, which enables the integration of quantitative label-free imaging with phase and polarization (QLIPP) with an existing fluorescence microscope via open-source acquisition and analysis software. recOrder enables a user to efficiently calibrate the light path, acquire 4D multi-modal volumes, reconstruct both label-free and fluorescence volumes, and readily visualize the data. The recOrder platform leverages pycromanager and Micro-Manager for pythonic control of the components of the microscope and napari for pythonic visualization of and interaction with high-dimensional data. recOrder enabled systematic measurements of changes in the architectural order of mouse brain tissue sections due to developmental mutations. We optimized the acquisition speed of the QLIPP to enable faster imaging of a 3D anisotropy and density, allowing the user to measure architectural changes of live cells. recOrder enabled automated imaging of the label-free and fluorescence volumes of endogenously tagged cell lines from OpenCell collection, with and without perturbations. These advances in modular and integrative computational imaging facilitate efficient integration of quantitative, label-free imaging into existing high throughput imaging pipelines to provide complimentary measurements of the architectural order of cells and tissues. 
Secondary infall and dark matter haloes
Creators: name: Ascasibar, Y.
name: Hoffman, Y.
name: Gottloeber, S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We test the Secondary Infall Model (SIM) by direct comparison with the results of N-body simulations. Eight cluster-size and six galactic-size dark matter haloes have been selected at $z=0$ and re-simulated with high resolution. Based on their density profiles at the initial redshift, we compute their evolution by the SIM, assuming a simple prescription for the angular momentum. A comparison of the density profiles obtained by the SIM and the numerical experiments at $z=5$, 1 and 0 shows that, for most of the haloes at most epochs, the SIM reproduces the simulated mater distribution with a typical fractional deviation of less than 40 per cent over more than six order of magnitudes in the density. It is also found that, within the SIM framework, most of the diversity in the shape of the density profiles at $z=0$ arises from the scatter in the primordial initial conditions rather than the scatter in the angular momentum distribution. A crude optimization shows that a similar degree of agreement is obtained for galactic and cluster haloes, but the former seem to require slightly higher amounts of angular momentum. Our main conclusion is that the SIM provides a viable dynamical model for predicting the structure and evolution of the density profile of dark matter haloes.
description: 13 pages, 6 figures, submitted to MNRAS
Multimodal Classification of Teaching Activities from University Lecture Recordings
Creators: name: Sapena, Oscar
name: Onaindia, Eva
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences
subject: I.2.6; I.2.7; I.5.4
subject: 68T05 (Primary), 97P80 (Secondary)

description: The way of understanding online higher education has greatly changed due to the worldwide pandemic situation. Teaching is undertaken remotely, and the faculty incorporate lecture audio recordings as part of the teaching material. This new online teaching-learning setting has largely impacted university classes. While online teaching technology that enriches virtual classrooms has been abundant over the past two years, the same has not occurred in supporting students during online learning. {To overcome this limitation, our aim is to work toward enabling students to easily access the piece of the lesson recording in which the teacher explains a theoretical concept, solves an exercise, or comments on organizational issues of the course. To that end, we present a multimodal classification algorithm that identifies the type of activity that is being carried out at any time of the lesson by using a transformer-based language model that exploits features from the audio file and from the automated lecture transcription. The experimental results will show that some academic activities are more easily identifiable with the audio signal while resorting to the text transcription is needed to identify others. All in all, our contribution aims to recognize the academic activities of a teacher during a lesson.
description: 18 pages
Σεισμικότητα και σεισμοτεκτονικά χαρακτηριστικά του Νοτίου Αιγαίου
Creators: name: Μιχαήλος, Κωνσταντίνος Ευάγγελου
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Σεισμικότητα
Νότιο Αιγαίο
Μηχανισμοί γένεσης
Seismicity
South Aegean
Focal mechanisms

description: Η παρούσα διατριβή έχει ως στόχο την μελέτη της σεισμικότητας και των σεισμοτεκτονικών χαρακτηριστικών της περιοχής του Νοτίου Αιγαίου. Παρουσιάζονται πληροφορίες για τις σεισμοτεκτονικές ιδιότητες της περιοχής του Νοτίου Αιγαίου με βάση δημοσιευμένα σχετικά αποτελέσματα. Επίσης δίνονται πληροφορίες για τους μηχανισμούς γένεσης των ισχυρότερων σεισμών της περιοχής. Ένα άλλο θέμα που θίξαμε είναι οι κατάλογοι των σεισμών, οι χρήσεις τους καθώς και τα προβλήματα που παρουσιάζουν, καθώς τα δεδομένα που χρησιμοποιούνται στη διατριβή. Επιπλέον παραθέτονται οι μέθοδοι που χρησιμοποιήθηκαν με σκοπό την διόρθωση των μεγεθών και την μετατροπή τους σε μια κοινή κλίμακα με μεγέθη ισοδύναμα με αυτά του μεγέθους σεισμικής ροπής. Ακόμη παρουσιάζονται τα αποτελέσματα του καθορισμού του μεγέθους πληρότητας, Mc, καθώς και οι χωροχρονικές μεταβολές του στη περιοχή του Νοτίου Αιγαίου. Επίσης, υπολογίζονται οι τιμές των παραμέτρων a και b. Τέλος εξετάζεται το πεδίο τάσεων και η διεύθυνση κίνησης των λιθοσφαιρικών πλακών στη περιοχή με βάση πληροφορίες από τους μηχανισμούς γένεσης των σεισμών. Με συνδυασμό των μηχανισμών γένεσης και της σεισμικότητας (ρυθμός απελευθέρωσης σεισμικής ροπής, ταχύτητες σεισμικής παραμόρφωσης) έγινε μια προσπάθεια να καθοριστεί η ταχύτητα παραμόρφωσης του φλοιού.
description: The purpose of this thesis is to analyze the seismotectonic properties of the Southern Aegean region, Greece, which is of great importance, since many devastating earthquakes were reported during historical times and recorded during the instrumental era, causing extensive damage and loss of lives. First we presented the seismotectonic framework of Greece, using information gathered from previous published studies. Furthermore a catalog of earthquakes that occurred in South Aegean during the period 2000-2013 is compiled. The purpose of this chapter is to achieve magnitude homogeneity in the earthquake catalog through a correction process which converts all magnitudes into an equivalent moment magnitude scale. Next the completeness magnitude Mc is sought by using a modified approach of the goodness-of-fit method of Wiemer and Wyss (2000) proposed by Leptokaropoulos et al. (2013). We also examined the dominant stress regime of the study area was made. Moreover the characteristics of seismic activity in each seismic zone were quantified by estimating parameters such as the moment rate and the deformation velocities.
Magnetoelastic coupling and Grüneisen scaling in NdB$_4$
Creators: name: Ohlendorf, Rahel
name: Spachmann, Sven
name: Fischer, Lukas
name: Dey, Kaustav
name: Brunt, Daniel
name: Balakrishnan, Geetha
name: Petrenko, Oleg A.
name: Klingeler, Rüdiger
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report high-resolution capacitance dilatometry studies on the uniaxial length changes in a NdB$_4$ single crystal. The evolution of magnetically ordered phases below $T_{\rm N}$= 17.2~K (commensurate antiferromagnetic phase, cAFM), $T_{\rm IT}$= 6.8~K (intermediate incommensurate phase, IT), and $T_{\rm LT}$= 4.8~K (low-temperature phase, LT) is associated with pronounced anomalies in the thermal expansion coefficients. The data imply significant magneto-elastic coupling and evidence of a structural phase transition at $T_{\rm LT}$ . While both cAFM and LT favor structural anisotropy $δ$ between in-plane and out-of-plane length changes, it competes with the IT-type of order, i.e., $δ$ is suppressed in that phase. Notably, finite anisotropy well above $T_{\rm N}$ indicates short-range correlations which are, however, of neither cAFM, IT, nor LT-type. Grüneisen analysis of the ratio of thermal expansion coefficient and specific heat enables the derivation of uniaxial as well as hydrostatic pressure dependencies. While $α$/$c_{\rm p}$ evidences a single dominant energy scale in LT, our data imply precursory fluctuations of a competing phase in IT and cAFM, respectively. Our results suggest the presence of orbital degrees of freedom competing with cAFM and successive evolution of a magnetically and orbitally ordered ground state.
ERRATA
Creators: name: Farooq, Mustafa
Publisher: name: Continental Journal of Biological Sciences
Year: 2024

description: The aim of this literature review is to comprehensively examine the current advancements in the development and application of neural organoids as models for personalized neurosurgical treatments. By reviewing existing research, the project seeks to evaluate the efficacy of neural organoids in simulating patient-specific brain conditions, such as epilepsy and neurodegenerative disorders, and their potential in improving surgical precision and outcomes. The review will also explore the role of neural organoids in high-throughput drug screening, gene therapy testing, and regenerative medicine, while highlighting the challenges and ethical considerations associated with their use. Ultimately, the goal is to provide a thorough understanding of how neural organoids are transforming personalized medicine in neurosurgery and to identify future directions for research and clinical applications.
Εμπορία ανθρώπων και σωματεμπορία
Creators: name: Χαριστού, Κωνσταντινιά Ευάγγελου
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Εμπορία
Ανθρώπων
Σωματεμπορία
Trafficking
Trade
Crime

description: Στο πρώτο μέρος της παρούσας εργασίας εξετάζεται το φαινόμενο της εμπορίας ανθρώπων και στο δεύτερο η σωματεμπορία ως ειδικότερη περίπτωση trafficking. Αρχικά παρατίθενται οι ευρωπαϊκές και διεθνείς νομοθετικές πρωτοβουλίες για την αντιμετώπιση των δύο φαινομένων και ακολουθεί η εξέταση των ρυθμίσεων του ελληνικού ποινικού κώδικα. Με εφαλτήριο τις νομοθετικές διατάξεις σε συνδυασμό με τις θέσεις της θεωρίας και τις κατευθύνσεις της νομολογίας αναλύονται τα στοιχεία των νομοτυπικών μορφών των δύο αδικημάτων, στη βασική τους μορφή και στις διακεκριμένες περιπτώσεις. Ακολούθως, προσεγγίζονται ζητήματα συρροής αμφότερων των αδικημάτων με άλλα αδικήματα, όπως η παράνομη είσοδος αλλοδαπών στη χώρα, η μαστροπεία, το εμπόριο δούλων και η σχέση τους με το έγκλημα της νομιμοποίησης εσόδων από παράνομη δραστηριότητα. Τέλος, προσεγγίζονται κριτικά οι ποινικές κυρώσεις που απειλούνται για τα ανωτέρω αδικήματα σε κάποιες μορφές εμφάνισης αυτών.
description: In the first part of this paper examines the phenomenon of trafficking and on the second peoples’ trade as a particular case of trafficking. Firstly, presented the European and international legislative initiatives to address the two phenomena, followed by examination of the rules of the Greek Penal Code. Building on the legal provisions in connection with the positions of the theory and guidelines of the jurisprudence the elements of the two offenses are analyzed, in their basic form and their distinct cases. Accordingly, confluence issues of both offenses with other offenses are approached such as illegal entry of foreign in the country, forced prostitution, trade slaves and their relation to the crime of money laundering. Finally, are critically approached the criminal penalties threatened for the above offenses in some forms of these display.
Influence Of Social Media On Variegated Human Resource
Creators: name: Ratchana Rajendran
Publisher: name: figshare
Year: 2021
Subjects: subject: 150305 Human Resources Management
subject: FOS: Economics and business

description: allowing the society to be united and to keep pace with the latest developments world-wide. The modern cyber sovereignty recreates the planet in a global village. This electronic independence depends on it the Internet. It clarifies thousands of people's lives by diluting foreign awareness and thereby making us global citizens. There have been days where individual meetings for plans and initiatives were held and when Human Resources were used to move between sites, advertising new campaigns and activities but with the advent of social media, a single facebook or twitter update or a message on the Internet-based organization’s management system is a public letter for any form of organization. The internet application continues to expand and social media is becoming a huge and important part of our private and professional lives. This quick change therefore Human Resource Professionals have an atmosphere in which workers are expected to develop and revive different social media activities & processes in relation to the convention on social media instruments. The social media thus became part of the world of the management of human resources. This paper looks at the effect of social media on different roles of human resources such as talent management, recruiting, selection and performance administration. Keywords: human resource, social media, twitter, instagram, organization, recruitment.
Η κατοίκηση στα παράλια της επαρχίας Παλαιάς Ηπείρου από την ύστερη αρχαιότητα έως την αρχή της μέσης βυζαντινής περιόδου (4ος-8ος αι. μ.Χ.)
Creators: name: Κωνσταντάκη, Αθηνά Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Επαρχία Παλαιάς Ηπείρου
Παράλιες οικιστικές θέσεις
Ύστερη αρχαιότητα
Province of Epirus Vetus
Coastline settlements
Late Antiquity

description: Με την παρούσα μελέτη επιχειρούμε να εξετάσουμε τη μορφή και την οργάνωση της κατοίκησης κατά μήκος των παραλίων της επαρχίας Παλαιάς Ηπείρου, με έμφαση στην περιοχή από το Βουθρωτό μέχρι την ευρύτερη περιοχή της Νικόπολης, κατά την πρώιμη βυζαντινή και την αρχή της μέσης βυζαντινής περιόδου (4ος-8ος αι.), σύμφωνα με τα μέχρι σήμερα δεδομένα (ιστορικές και αρχαιολογικές μαρτυρίες). Επιχειρείται η αναγνώριση και η καταγραφή των οικιστικών θέσεων και η διερεύνηση της λειτουργίας και χρήσης του χώρου (αστικός χώρος-ύπαιθρος χώρα), ο εντοπισμός δικτύων (δρόμοι, λιμάνια), η κατανόηση της λειτουργίας τους και οι μεταβολές που εντοπίζονται σταδιακά κατά τη μετάβαση στη μεσοβυζαντινή περίοδο.
description: The aim of the study is to examine the type and organization of settlements alongside the coastline of province Epirus Vetus, according to the historical and archaeological data, emphasizing in the section from Butrint to the territorium of Nicopolis, from protobyzantine to the beginning of the middle byzantine age (4th-8th c. A.D.). Through this study we identify and record the sites of settlements and examine the function and use of living space (urban – rural), of networks (roads, ports) and their transformation to the middle byzantine period.
title: Beyond end-to-end – Exploring Extremes in Medical Continual Learning
Creators: name: Ranem, Amin
Publisher: name: UNSPECIFIED
Year: 2025

description: Deep Learning has transformed medical image analysis, yet traditional end-to-end approaches face significant limitations in real-world clinical deployments. This dissertation proposes advances in medical Continual Learning (CL) beyond conventional paradigms by exploring the extremes from lightweight architectures to powerful Foundation Models (FMs), while addressing the fundamental challenge of catastrophic forgetting in neural networks.
While our Lifelong nnU-Net serves as a traditional baseline CL framework, extending con- ventional architectures with efficient mechanisms for continual adaptation and achieving a 30% improvement in cross-domain generalization while maintaining original task performance within 2% of baseline metrics, our work explores more innovative solutions beyond these conventional approaches.
Exploring alternative paradigms, we present Atlas Replay, which bridges classical medical image segmentation with modern non-traditional CL approaches through innovative atlas-based segmentation. This work further evolved into NCA-Morph, a registration framework, achieving an 99.7% reduction in parameters while maintaining performance competitive with state-of-the-art registration methods. Pushing the boundaries of computational efficiency, NCAdapt introduces a lightweight, domain-growing architecture that delivers superior CL performance with less than 1% additional memory overhead per new domain.
We developed the UnCLe SAM, adapting the SAM architecture to medical imaging. This approach demonstrates outstanding generalisation capabilities, attaining average Dice scores above 85% across unexplored anatomical regions, which advances the promise of FM in medical image segmentation.
Our methods consistently excel in challenging scenarios such as cross-modality adaptation and zero-shot generalization, while significantly reducing computational requirements for practical deployment.
Beyond technical innovations, we address crucial regulatory considerations for deploying adaptive Artificial Intelligence (AI) systems in clinical environments. Through an in-depth analysis of the Food and Drug Administration (FDA)’s Pre-determined Change Control Plans for Medical Devices (PCCP), we examine the implications for CL systems in healthcare and provide practical approaches for certifying continuously evolving systems while maintaining safety standards.
By exploring these extremes in medical CL this research establishes new frameworks for implementing adaptive AI systems in regulated medical environments. These contributions provide comprehensive insights for future development while addressing technical, practical and regulatory challenges in advancing beyond traditional end-to-end approaches.
Colloids in a periodic potential: driven lattice gas in continuous space
Creators: name: Potiguar, Fabricio Q.
name: DIckman, Ronald
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Motivated by recent studies of colloidal particles in optical tweezer arrays, we study a two-dimensional model of a colloidal suspension in a periodic potential. The particles tend to stay near potential minima, approximating a lattice gas. The interparticle interaction, a sum of Yukawa terms, features short-range repulsion and attraction at somewhat larger separations, such that two particles cannot occupy the same potential well, but occupation of adjacent cells is energetically favored. Monte Carlo simulation reveals that the equilibrium system exhibits condensation, as in the Ising model/lattice gas with conserved magnetization; the transition appears to be continuous at a half occupancy. We study the effect of biased hopping probabilities favoring motion along one lattice direction, as might be generated by a steady flow relative to the potential array. This system is found to exhibit features of the driven lattice gas: the interface is oriented along the drive, and appears to be smooth. A weak drive facilitates ordering of the particles into high- and low-density regions, while stronger bias tends to destroy order, and leads to very large energy fluctuations. Our results suggest possible realizations of equilibrium and driven lattice gases in a colloidal suspension subject to an optical tweezer array.
title: Understanding neurological processes in the leadership context
title: A two study investigation on personality traits, transformational leadership and subjective leader effectiveness
titleType: AlternativeTitle
Creators: name: Pachocki, Katharina
Publisher: name: Technische Universität Dortmund
Year: 2019
Subjects: subject: Transformational leadership
subject: Neuroleadership
subject: Dark triad
subject: Leadership effectiveness
subject: 300
subject: Transformationale Führung
subject: Führungserfolg
subject: Hirnforschung

description: Die vorliegende Dissertation befasst sich mit der Untersuchung neurologischer Prozesse im Kontext der Führung und fokussiert dabei auf die Persönlichkeit, den transformationalen Führungsstil und den subjektiven Erfolg einer Führungskraft. Das übergeordnete Ziel der Arbeit war es, durch die Anwendung eines innovativen Ansatzes einen Beitrag zur Führungsliteratur zu leisten und somit das Verständnis der einzelnen Konstrukte und Prozesse zu verbessern. Die erste empirische Studie analysierte die drei Facetten der dunklen Triade (Narzissmus, Machiavellismus und Psychopathie) sowie die transformationale Führung als Gesamtkonstrukt in Bezug auf intrinsische neurologische Prozesse im Rahmen eines Mediationsmodells. Die Ergebnisse zeigen, dass narzisstische (psychopathische) Führungskräfte eine geringe intrinsische Vernetzung im rechten (linken) Frontallappen aufweisen. Weiterhin konnte festgestellt werden, dass Führungskräfte mit hoher intrinsischer Vernetzung im rechten Frontallappen eher transformational führen. Schließlich zeigte sich, dass der Zusammenhang zwischen den Eigenschaften der dunklen Triade und der transformationalen Führung durch intrinsische Vernetzungen von Hirnbereichen vermittelt wird. Diese Ergebnisse liefern erste Hinweise darauf, dass sich die dunkle Triade in verschiedenen verminderten intrinsischen Hirnvernetzungen widerspiegeln lässt und dass diese Hirnprozesse den Mechanismus von Persönlichkeitseigenschaften auf das Führungsverhalten mediieren. In der zweiten Studie lag der Fokus auf den einzelnen Facetten der transformationalen Führung, wobei untersucht wurde, ob sich diese hinsichtlich der Aufteilung in individual- und gruppenbezogene Verhaltensweisen in den reflexiven Hirnprozessen der Führungskraft widerspiegeln. Die Ergebnisse zeigen, dass die reflexive Vernetzung im rechten (linken) Frontallappen die gruppenbezogenen (individualbezogenen) Facetten erhöht. Das Bedeutet, dass die unterschiedlichen psychologischen Prozesse der transformationalen Führung auch auf neuronaler Ebene abgebildet werden können. Darüber hinaus wurde festgestellt, dass die reflexive Vernetzung im rechten (linken) Frontallappen über gruppenbezogenes (individualbezogenes) Verhalten zur Zufriedenheit mit der Führungskraft führt. Diese Ergebnisse tragen zur Forschung der transformationalen Führung bei, da erstmals eine Mediation in Bezug auf Hirnprozesse bestätigt wird.
ERRATA
Creators: name: Farooq, Mustafa
Publisher: name: Continental Journal of Biological Sciences
Year: 2024

description: Abstract

Neural organoid technology has emerged as a revolutionary tool in personalized medicine, particularly in the field of neurosurgery. These three-dimensional, brain-like structures derived from human pluripotent stem cells closely mimic key aspects of human brain development and function. Neural organoids offer unprecedented opportunities for disease modeling, drug testing, and personalized surgical planning, particularly for conditions like epilepsy and neurodegenerative disorders. This review explores the development, applications, and future potential of neural organoids in personalized neurosurgical treatments.

Neural organoids self-organize into brain regions, allowing them to simulate the architecture and functionality of the human brain, including the formation of neurons, glial cells, and progenitor cells. These models can be generated from patient-specific induced pluripotent stem cells (iPSCs), providing individualized platforms for studying rare neurological disorders, testing therapies, and improving surgical precision. In epilepsy, for example, patient-derived organoids have been used to model seizure activity, enabling more accurate identification of seizure foci for surgical resection. Similarly, neural organoids have been instrumental in studying the mechanisms underlying neurodegenerative diseases, including the formation of pathological structures like amyloid plaques in Alzheimer’s disease, facilitating the development of targeted treatments.

Beyond modeling neurological conditions, neural organoids are pivotal in drug discovery, offering a human-relevant platform for high-throughput drug screening. In vitro testing of potential therapies on organoids has led to the identification of promising compounds for further clinical trials. Additionally, neural organoids are being used to assess the efficacy of gene therapies aimed at correcting genetic mutations responsible for diseases like Parkinson’s and specific forms of epilepsy. The ability to manipulate these patient-derived models provides critical insights into the potential success of therapies before clinical application.

The future of neural organoids in neurosurgery extends to regenerative medicine, where their use in repairing damaged brain tissue due to stroke or trauma holds potential. However, challenges such as the lack of vascularization and ethical concerns surrounding organoid complexity require ongoing research. As neural organoids continue to evolve, they are poised to become indispensable tools in both basic research and clinical neurosurgical practice, offering personalized approaches to some of the most challenging neurological disorders.
The method of covariant symbols in curved space-time
Creators: name: Salcedo, L. L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Diagonal matrix elements of pseudodifferential operators are needed in order to compute effective Lagrangians and currents. For this purpose the method of symbols is often used, which however lacks manifest covariance. In this work the method of covariant symbols, introduced by Pletnev and Banin, is extended to curved space-time with arbitrary gauge and coordinate connections. For the Riemannian connection we compute the covariant symbols corresponding to external fields, the covariant derivative and the Laplacian, to fourth order in a covariant derivative expansion. This allows to obtain the covariant symbol of general operators to the same order. The procedure is illustrated by computing the diagonal matrix element of a nontrivial operator to second order. Applications of the method are discussed.
description: 28 pages, no figures. References added. To appear in European Physical Journal C
Σχέση μεταξύ της ιχνογράφησης άντρα και της σχολικής ικανότητας του παιδιού
Creators: name: Ζάχαρης, Δημήτριος
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 1998

description: The aim of our research was to ascertain the point of relevance among the child's ability that first comes at school, to draw the male figure, and his school ability or maturity that is his ability to correspond at school's demands (assimilation of techniques of culture). On April 1997, 216 students were examined at tests ''drawing man'' and additionally at tests ''total conception' and pictures relation conception", although all of them are considered as crucial for child's school ability. At the end of the school year 1996-97, the students were examined in the following subjects: Reading. Writing and Maths and they were graded/marked based on the same scale with which the progresses of the tests were evaluated. The results showed positive but very low relevance between the man's drawing and tests totals' conception and relation conception on the one hand, and school's progress, on the other.
description: Παιδαγωγική Επιθεώρηση, Vol. 28 (1998)
Neural Organoids as a Model for Personalized Neurosurgical Treatments
Creators: name: Farooq, Mustafa
name: Mehra, Mehul
name: Nguyen, Khoi
Publisher: name: Continental Journal of Biological Sciences
Year: 2024

description: Abstract

Neural organoids have significantly advanced personalized medicine, particularly in neurosurgery, by closely replicating human brain development and disease mechanisms. These 3D models, derived from human pluripotent stem cells, offer unprecedented opportunities to study neurodevelopment, neurodegenerative diseases, and cancer in patient-specific contexts. The use of neural organoids derived from induced pluripotent stem cells (iPSCs) allows researchers to create individualized brain models that capture the complexity of conditions like epilepsy, glioblastoma, and Parkinson's disease. In glioblastoma research, "tumoroids" composed of patient-derived tumor cells integrated into organoids mimic tumor behavior, providing insights into immune evasion and resistance to conventional therapies such as chemotherapy and radiation. This allows for the testing of novel therapies targeting specific tumor survival pathways, including immune checkpoint inhibitors. In epilepsy, organoids simulate seizure activity, helping identify seizure foci and abnormal neuronal networks, which is critical for refining resection strategies in drug-resistant cases. Furthermore, organoids enable the testing of antiepileptic drugs and gene-editing technologies such as CRISPR, offering tailored therapeutic approaches. These advancements demonstrate the capacity of neural organoids to bridge the gap between disease modeling and clinical applications, providing a powerful tool for optimizing neurosurgical interventions and accelerating drug development.
Viva HemisFair: Reexamining a World's Fair in a Twenty-first Century Museum Exhibit
Creators: name: Daubert, Annie
Publisher: name: The University of Texas at Austin
Year: 2019
Subjects: museums
cultural heritage
world's fairs
HemisFair
San Antonio
museum exhibit

description: This thesis examines Viva HemisFair! Fifty Years of HemisFair '68 Memories, a recent temporary exhibition planned to coincide with the three hundredth anniversary of the city of San Antonio, Texas, and the fiftieth anniversary of the world's fair that was held there in 1968. The exhibit, on view at San Antonio's famed Institute of Texan Cultures from April 2018 to January 2019, was part of a city-wide celebration of the events. Unlike the rest of the city's year-long celebration and commemoration, Viva HemisFair offered visitors an unusual postmodern peek into the backstory of the making of a world's fair, with all of its attendant controversies. In a very quiet and non-didactic way, this small, low budget, and relatively unassuming temporary display draws on original oral historical and primary document research to create a multi-voiced, multi-dimensional portrait of a monumental extravaganza that took place in the middle of a phenomenally divided era. In this thesis, I highlight and expand upon the work that the exhibit's curator, Dr. Sarah Gould, did in creating her multi-voiced exhibit, identifying the core tensions between HemisFair and its portrayal in this exhibit. In so doing, I hope to contribute to a larger discourse both within and beyond the museum world about the significance of this shift in the methods of museum representation.
T-38: A dimensional reduced model for the classification of RNA-Seq Anopheles Gambiae Data
Creators: name: Arowolo, Micheal
name: Adebiyi, Marion
name: Ayodele Adebiyi
Publisher: name: F1000 Research Limited
Year: 2019

description: A significant application of gene expression RNA-Seq data is the classification and prediction of biological models. An essential component of data analysis is dimension reduction. This study presents a comparison study on a reduced data using PCA feature extraction dimension reduction technique and evaluates the relative performance of classification procedures of SVM kernel classification techniques, namely SVM-Polynomial kernels and SVM-Gaussian kernels. An accuracy and computational performance metrics of the processes were carried out. A malaria vector dataset for RNA-Seq classification was used in the study, and 99.68% accuracy was achieved in the classification output result.
Predicting drug side-effects using deep representation learning for graphs
Creators: name: Zitnik, Marinka
name: Leskovec, Jure
Publisher: name: F1000 Research Limited
Year: 2019

description: Polypharmacy, the use of drug combinations, is common to treat patients with complex or co-existing conditions. However, a major consequence of polypharmacy is a high risk of adverse side effects, which emerge because of drug-drug interactions, in which activity of one drug changes if taken with another drug. We present Decagon, an approach for modeling polypharmacy side effects. The approach constructs a multimodal graph of protein-protein interactions, drug-protein target interactions, and the polypharmacy side effects, which are represented as drug-drug interactions, where each side effect is an edge of a different type. Decagon develops a graph convolutional neural network for multirelational link prediction that is designed to handle such multimodal graphs with a large number of edge types. Decagon predicts the exact side effect, if any, through which a given drug combination manifests clinically. Decagon accurately predicts polypharmacy side effects, outperforming baselines by up to 69%. Decagon models particularly well side effects with a strong molecular basis, while on non-molecular side effects, it achieves good performance because of effective sharing of model parameters across edge types. Decagon creates opportunities to use large pharmacogenomic and patient data to flag polypharmacy side effects for follow-up pharmacological analysis. Project website: http://snap.stanford.edu/decagon.
Στρατηγικές για αειφόρο ανάπτυξη στο πλαίσιο της Ευρωπαϊκής Ένωσης
Creators: name: Mirjana Grkovska (Μιριάνα Γκρκόβσκα), Petre
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: αειφόρος ανάπτυξη
στρατηγική
Ευρωπαϊκή Ένωση
sustainable development
strategy
European Union

description: Ο όρος «αειφόρος ανάπτυξη» ολοένα και περισσότερο εισάγεται στην καθημερινή ζωή των ανθρώπων, στα πολιτικά προγράμματα και τις παγκόσμιες δράσεις. Περιλαμβάνοντας ένα ευρύ φάσμα προκλήσεων - όπως τα προβλήματα που συνδέονται με το περιβάλλον, την κοινωνία, την ανάπτυξη και την οικονομία - οι οποίες πρέπει να αντιμετωπιστούν, καθίσταται μια πολύπλοκη και πολύπλευρη έννοια. Η Ευρωπαϊκή Ένωση μέσα στο πλάσιο αυτό και λαμβάνοντας υπόψιν τις τρέχουσες εξελίξεις και την οικονομική κρίση, εντός και εκτός των ορίων της, ενέκρινε και εφάρμοσε στρατηγικές προς την επίτευξη της βιώσιμης ανάπτυξης. Η προσπάθεια αυτή, απαιτεί την στενή συνεργασία μεταξύ των κρατών-μελών, την βελτίωση των στρατηγικών και την προσαρμογή τους στο συνεχώς μεταβαλλόμενο περιβάλλον.
description: The term 'sustainable development' is increasingly getting introduced into everyday life, political programs and global actions. Encompassing a wide range of challenges-such as problems related to the environment, society, development and economy-which need to be addressed, it becomes a complex and multifaceted concept. In this context, the European Union taking into account current developments and economic crisis, both within and outside its limits, has adopted and implemented strategies to achieve sustainable development. This effort requires close cooperation between Member States, improvement of the strategies and adaptation to the constantly changing environment.
Laminated Wave Turbulence: Generic Algorithms II
Creators: name: Kartashova, Elena
name: Kartashov, Alexey
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The model of laminated wave turbulence puts forth a novel computational problem - construction of fast algorithms for finding exact solutions of Diophantine equations in integers of order $10^{12}$ and more. The equations to be solved in integers are resonant conditions for nonlinearly interacting waves and their form is defined by the wave dispersion. It is established that for the most common dispersion as an arbitrary function of a wave-vector length two different generic algorithms are necessary: (1) one-class-case algorithm for waves interacting through scales, and (2) two-class-case algorithm for waves interacting through phases. In our previous paper we described the one-class-case generic algorithm and in our present paper we present the two-class-case generic algorithm.
description: to appear in J. "Communications in Computational Physics" (2006)
Observation of a Chiral Wave Function in Twofold Degenerate Quadruple Weyl System BaPtGe
Creators: name: Li, Haoxiang
name: Zhang, Tiantian
name: Said, A.
name: Fu, Y.
name: Fabbris, G.
name: Mazzone, D. G.
name: Zhang, J.
name: Lapano, J.
name: Lee, H. N.
name: Lei, H. C.
name: Dean, M. P. M.
name: Murakami, S.
name: Miao, H.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Topological states in quantum materials are defined by non-trivial topological invariants, such as the Chern number, which are properties of their bulk wave functions. A remarkable consequence of topological wave functions is the emergence of edge modes, a phenomenon known as bulk-edge correspondence, that gives rise to quantized or chiral physical properties. While edge modes are widely presented as signatures of non-trivial topology, how bulk wave functions can manifest explicitly topological properties remains unresolved. Here, using high-resolution inelastic x-ray spectroscopy (IXS) combined with first principles calculations, we report experimental signatures of chiral wave functions in the bulk phonon spectrum of BaPtGe, which we show to host a previously undiscovered twofold degenerate quadruple Weyl node. The chirality of the degenerate phononic wave function yields a non-trivial phonon dynamical structure factor, S(Q,$ω$), along high-symmetry directions, that is in excellent agreement with numerical and model calculations. Our results establish IXS as a powerful tool to uncover topological wave functions, providing a key missing ingredient in the study of topological quantum matter.
description: Data and movies that support the findings of this study are available from the corresponding author on reasonable request
Dispersion of critical rotational speeds of gearbox: effect of bearings stiffnesses
Creators: name: Mayeux, François
name: Rigaud, Emmanuel
name: Perret-Liaudet, Joël
Publisher: name: arXiv
Year: 2007
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: Noise measurement on a population of a gearbox manufactured in large number reveals a high variability principally due to tolerances on each design parameter of the gear. Gearbox noise results mainly from vibration of its housing excited by the transmission error. High dynamic mesh load, high vibratory response of housing and high acoustic level of the gearbox can be observed for some critical rotational speeds. These ones correspond to excitation in a resonant manner of some particular modes which store a high potential energy at the meshing stiffness. Variability of the associated critical modes depend on tolerances affected to gear design parameters. It also depends on bearings stiffnesses dispersion. The physical origins of the bearings stiffnesses variability are preloads. Bearings stiffnesses and tolerances affect the characteristics of the meshing stiffness and the dynamic transfer from dynamic meshing force to the housing vibratory response. The purpose of this paper is to study effect of the bearings stiffnesses variability by estimating the first two moments of statistical distribution of critical modes.
description: CD-Rom
Vacuum Predictions and Measurements for an Internal Pellet Target
Creators: name: Lehmann, Inti
name: Nordhage, Orjan
name: Friden, Carl-Johan
name: Norman, Gunar
name: Ekstrom, Curt
name: Johansson, Tord
name: Wiedner, Ulrich
Publisher: name: arXiv
Year: 2007
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Nuclear Experiment (nucl-ex)
subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: Measurements with low Z targets at internal experiments typically imply a gas load which deteriorates the ring vacuum. Future experiments need reliable estimates for the expected vacuum conditions in order to design 4-pi detectors closely surrounding the interaction area. We present a method for the calculation of the resulting vacuum of such a complex system using a Pellet Target. In order to test the method, a vacuum system with diagnostic tools has been set up and a Pellet Target was operated under realistic conditions. The results for the absolute vacuum agree within factors of two with the expected pressures.
description: 11 pages, 3 figures, submitted to Elsevier Vacuum
Attribute Exploration of Discrete Temporal Transitions
Creators: name: Wollbold, Johannes
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Artificial Intelligence (cs.AI)
subject: Molecular Networks (q-bio.MN)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences

description: Discrete temporal transitions occur in a variety of domains, but this work is mainly motivated by applications in molecular biology: explaining and analyzing observed transcriptome and proteome time series by literature and database knowledge. The starting point of a formal concept analysis model is presented. The objects of a formal context are states of the interesting entities, and the attributes are the variable properties defining the current state (e.g. observed presence or absence of proteins). Temporal transitions assign a relation to the objects, defined by deterministic or non-deterministic transition rules between sets of pre- and postconditions. This relation can be generalized to its transitive closure, i.e. states are related if one results from the other by a transition sequence of arbitrary length. The focus of the work is the adaptation of the attribute exploration algorithm to such a relational context, so that questions concerning temporal dependencies can be asked during the exploration process and be answered from the computed stem base. Results are given for the abstract example of a game and a small gene regulatory network relevant to a biomedical question.
description: Only the email address and reference have been replaced