cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Stock picking with machine learning
Creators: name: Wolff, Dominik
name: Echterling, Fabian
Publisher: name: John Wiley & Sons
Year: 2024

description: We analyze machine learning algorithms for stock selection. Our study builds on weekly data for the historical constituents of the S&P500 over the period from January 1999 to March 2021 and builds on typical equity factors, additional firm fundamentals, and technical indicators. A variety of machine learning models are trained on the binary classification task to predict whether a specific stock outperforms or underperforms the cross‐sectional median return over the subsequent week. We analyze weekly trading strategies that invest in stocks with the highest predicted outperformance probability. Our empirical results show substantial and significant outperformance of machine learning‐based stock selection models compared to an equally weighted benchmark. Interestingly, we find more simplistic regularized logistic regression models to perform similarly well compared to more complex machine learning models. The results are robust when applied to the STOXX Europe 600 as alternative asset universe.
title: Histoire de la philosophie analytique / History of Analytic Philosophy
Publisher: name: Maison des Sciences de l’Homme de Clermont-Ferrand
Year: 2022

description: La journée d’étude est construite autour de la participation de Christopher Pincock, chercheur invité par le PHIER à Clermont-Ferrand. Elle aborde essentiellement deux thèmes : les rapports de l’empirisme logique à des traditions qui lui sont extérieures ; le pragmatisme américain et ses relations avec la philosophie analytique.    The workshop is built around the participation of Christopher Pincock, a researcher invited by PHIER to Clermont-Ferrand. It focuses on two main themes: the relationship between logical empiricism and traditions outside it; American pragmatism and its relationship to analytic philosophy.
title: L'homme et l'animal en société
Publisher: name: Maison des Sciences de l’Homme de Clermont-Ferrand
Year: 2020

description: Le séminaire de la Maison des Sciences de l’Homme est l’un des outils mis en place pour promouvoir l’interdisciplinarité. Ce cycle de conférences réunit une grande variété de chercheurs autour d’un thème, renouvelé tous les ans, afin d’en explorer les différentes facettes. Pour l’année universitaire 2018-2019, un historien, un neurologue, une juriste, deux géographes, un littéraire et une linguiste croisent leur regard autour de la question de "L’homme et l’animal en société".
Analyzing Constraints on Coronal Jets Near Filaments and Sigmoidal Active Regions Using Nonlinear Force-Free Models
Creators: name: Wainwright, Will
Publisher: name: Zenodo
Year: 2020

description: Throughout the eleven year cycle of the sun, solar eruptions are constantly taking place. Thought to be caused by reconnection of magnetic field lines, coronal jets are one of several types of such eruptions. Jet formation and eruption is not well understood. In some cases, jets occur when small filaments of chromospheric material are lofted into the corona. The filaments have strong magnetic flux, and are often the site of magnetic reconnection and subsequent eruption. In order to better understand the constraints on these coronal jets, we have modeled the conditions required for stable filaments and eruptions using nonlinear force-free (NLFF) field modeling. NLFF models are 3-D topological models that are used to show the morphological evolution of magnetic fields. Using the CMS2 modeling suite, we modeled two regions with jet eruptions: a coronal jet near a larger filament, and a coronal jet near an AR sigmoid. In both cases, Solar Dynamics Observatory’s HMI magnetograms and observations from AIA images are used to constrain the input parameters of the model. In this presentation, we will present our model results and discuss how they help understand solar coronal jet eruptions.
description: This work is supported by NSF-REU solar physics program at SAO, grant number AGS-1560313, and NASA grant number NNX15AF43G.
Ragging in MBR: Effects of Operational Conditions, Chemical Cleaning, and Pre-Treatment Improvements
Creators: name: S. Gabarrón
name: M. Gómez
name: L. Dvořák
name: I. Růžičková
name: I. Rodriguez-Roda
name: J. Comas
Publisher: name: Taylor & Francis
Year: 2014
Subjects: subject: Biological Sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Chemistry
subject: Earth and Environmental Sciences
subject: Engineering
subject: Biochemistry

description: The fouling behavior in MBR affected by the ragging phenomenon was characterized by the fast increase of the TMP values. It was caused by the rags attached to the membranes which were not removed through the backwashing or recovery cleanings. However, the modification of operational conditions, such as the reduction of the operational flux or the MLSS concentration, achieved improvements on the fouling rates profile. On the contrary, the increase of filamentous bacteria in the activated sludge negatively affected the fouling behavior. Finally, a strategy based on an optimized mechanical pre-treatment with flocculants addition showed promising results for ragging prevention.
H63D Syndrome (alle 3 Typen) inklusive Oshtoran Syndrom
Creators: name: International H63D Syndrome Research Consortium
Publisher: name: Zenodo
Year: 2024

description: Alles Wesentliche über das H63D-Syndrom Typ 1 bis 3, lezteres auch Oshtoran Syndrom genannt. Das H63D-Syndrom kondensiert und vereinfacht erklärt. Aufklärungsposter in Vorbereitung der H63D Konferenz 2025.
Review of: "High speed (doping) nMOS graphene transistor in p- and n-doping electronic circuits (positive and negative)"
Creators: name: Rashid, Afshin
Publisher: name: Humanities Commons
Year: 2023
Subjects: subject: Nanoelectromechanical systems
subject: Nanoelectronics
subject: Nanoscience
subject: Nanoscience--Research

description: Note: The term graphene nMOS transistor comes from the combination of the words graphene and nMOS transistor in transmission and resistance. In a nMOS graphene field effect transistor, the resistance between two electrodes can be transferred or controlled by a third electrode. In a multilayer graphene field effect nMOS transistor, the current between the two electrodes is controlled by the electric field from the third electrode. Unlike the bipolar transistor, it is capacitively connected to the third electrode and is not in contact with the semiconductor. Three electrodes in the structure of the nMOS graphene field effect transistor are connected to the source, drain and gate, and this action increases the switching speed (doping) in the nMOS graphene transistor circuit. [1][2] Graphene in nMOS field-effect transistors is an excellent electrical conductor, and also has outstanding spintronic properties. The ultra-thin carbon lattice is capable of transporting electrons with coordinated spin over longer distances and spinning for longer periods of time than any other known material at room temperature. Although the distance is still on the scale of a few micrometers and the time is still measured in nanoseconds, it essentially opens up the possibility of using rotation in microelectronic components.
title: Séminaires ERIBIA 2019-2020
Publisher: name: Centre d'Enseignement Multimédia Universitaire (C.E.M.U.)Université de Caen Normandie
Year: 2020

description: Le laboratoire ERIBIA propose un séminaire interdisciplinaire qui réunit les chercheurs littéraires et civilisationnistes de LSA et de GREI et leurs invités de la communauté universitaire internationale et nationale. Au cours de ces dernières années, le Séminaire ERIBIA s’est interrogé sur plusieurs questions en rapport avec la mémoire.
Controlling Phase Growth During Solidification by Nanoparticles
Creators: name: Chen, Lian-Yi
name: Jia-Quan Xu
name: Li, Xiao-Chun
Publisher: name: Taylor & Francis
Year: 2015
Subjects: subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Developmental Biology
subject: Biological Sciences
subject: Chemistry
subject: Biotechnology
subject: Genetics
subject: FOS: Biological sciences
subject: Medicine
subject: Engineering

description: Controlling phase growth during solidification is essential to obtain desirable structures and properties in metallic materials by casting. However, only limited ways are available for controlling the growth of phases during solidification. Here, we report a general approach to control the growth of phase domains during solidification by adsorption of nanoparticles on the growing interface. The effectiveness of the approach is demonstrated in an Sn–Al alloy. With nanoparticle-enabled growth control, the size of the primary Al phase is reduced substantially and the dendrite growth is restricted. This work potentially provides an effective way to control the structure of alloys during solidification.
Analysis of vibrational spectra (FT-IR and VCD) and nonlinear optical properties of [Ru(L)3]2+ complexes
Creators: name: Nasarul Islam
name: Pandith, Altaf Hussain
Publisher: name: Taylor & Francis
Year: 2014
Subjects: subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Biological Sciences
subject: Cancer
subject: Developmental Biology
subject: Astronomy, Astrophysics, Space Science
subject: Chemistry
subject: Earth and Environmental Sciences
subject: Pharmacology
subject: Neuroscience
subject: Genetics
subject: FOS: Biological sciences
subject: Cell Biology
subject: Biochemistry
subject: Biophysics

description: Density functional theory calculations were performed on [Ru(L)3]2+ (L = 1,10-phenanthroline, 2,2′-bipyridine, 2,2′-bipyrimidine, 2,2′-bipyrazine) complexes by employing B3PW91 functional and LAN2DZ basis set to predict their spectra and nonlinear optical response. The geometrical and coordination energy studies explained that the stability of [Ru(L)3]2+ metal complexes depends on the extent of interaction of the dπ orbitals of Ru2+ with the π* ligand orbitals, which is maximum for 1,10-phenanthroline. The two enantiomers of the [Ru(L)3]2+ show IR absorption peaks in the region of 1100–1800 cm−1, and a slight shift occurs to lower frequency by solvent. The vibrational circular dichroism peaks of [Ru(phen)3]2+ had major contribution from out-of-phase stretching of 1,10-phenanthroline rings and a minor contribution from H–C=C–H wagging and C=C stretching of rings. Maximum hyperpolarizability was observed for [Ru(phen)3]2+ due to stronger anharmonicity in the π-electron system. Among the [Ru(L)3]2+ (L = bpy, bpm, and bpz) complexes, [Ru(bpm)3]2+ shows enhanced hyperpolarizability due to increase in the dipole along the X-direction. In derivative Ru2+ complexes, we found that hyperpolarizability depends on electron-donating capability of the substituent. As per FMOs study, the HOMO is predominantly metal fragment based, the LUMO is primarily ligand based, and the larger value of hyperpolarizability corresponds to the lower ELUMO–EHOMO gap, reflecting that nonlinear optical response is a consequence of additive dipolar responses of charge transfer and hyperpolarizability.
Evaluating the effects of second-dose vaccine-delay policies in European countries: A simulation study based on data from Greece.
Creators: name: Barmpounakis, Petros
name: Demiris, Nikolaos
name: Kontoyiannis, Ioannis
name: Pavlakis, George N
name: Sypsa, Vana
Publisher: name: Apollo - University of Cambridge Repository
Year: 2022
Subjects: Research Article
Medicine and health sciences
Biology and life sciences
People and places

description: The results of a simulation-based evaluation of several policies for vaccine rollout are reported, particularly focusing on the effects of delaying the second dose of two-dose vaccines. In the presence of limited vaccine supply, the specific policy choice is a pressing issue for several countries worldwide, and the adopted course of action will affect the extension or easing of non-pharmaceutical interventions in the next months. We employ a suitably generalised, age-structure, stochastic SEIR (Susceptible → Exposed → Infectious → Removed) epidemic model that can accommodate quantitative descriptions of the major effects resulting from distinct vaccination strategies. The different rates of social contacts among distinct age-groups (as well as some other model parameters) are informed by a recent survey conducted in Greece, but the conclusions are much more widely applicable. The results are summarised and evaluated in terms of the total number of deaths and infections as well as life years lost. The optimal strategy is found to be one based on fully vaccinating the elderly/at risk as quickly as possible, while extending the time-interval between the two vaccine doses to 12 weeks for all individuals below 75 years old, in agreement with epidemic theory which suggests targeting a combination of susceptibility and infectivity. This policy, which is similar to the approaches adopted in the UK and in Canada, is found to be effective in reducing deaths and life years lost in the period while vaccination is still being carried out.
Lead ammunition residues in a hunted Australian grassland bird, the stubble quail (Coturnix pectoralis): Implications for human and wildlife health.
Creators: name: Hampton, Jordan O
name: Dunstan, Heath
name: Toop, Simon D
name: Flesch, Jason S
name: Andreotti, Alessandro
name: Pain, Deborah J
Publisher: name: Apollo - University of Cambridge Repository
Year: 2022
Subjects: subject: Research Article
subject: Physical sciences
subject: FOS: Physical sciences
subject: Biology and life sciences
subject: Medicine and health sciences

description: Funder: McKenzie Fellowship program
description: Funder: Game Management Authority
description: Scavenging and predatory wildlife can ingest lead (Pb) from lead-based ammunition and become poisoned when feeding on shot game animals. Humans can similarly be exposed to ammunition-derived lead when consuming wild-shot game animals. Studies have assessed the degree of lead contamination in the carcasses of game animals but this scrutiny has not so far extended to Australia. Stubble quail (Coturnix pectoralis) are one of the only native non-waterfowl bird species that can be legally hunted in Australia, where it is commonly hunted with lead shot. The aim of this study was to characterize lead contamination in quail harvested with lead-based ammunition. The frequency, dimensions, and number of lead fragments embedded in carcasses were assessed through use of radiography (X-ray). From these data, the average quantity of lead available to scavenging wildlife was estimated along with potential risks to human consumers. We radiographed 37 stubble quail harvested by hunters using 12-gauge (2.75") shotguns to fire shells containing 28 g (1 oz) of #9 (2 mm or 0.08" diameter) lead shot in western Victoria, Australia, in Autumn 2021. Radiographs revealed that 81% of carcasses contained embedded pellets and/or fragments with an average of 1.62 embedded pellets detected per bird. By excising and weighing a sample of 30 shotgun pellets (all had a mass of 0.75 grain or 48.6 mg), we calculated an average lead load of 78 mg/100 g of body mass. This was a conservative estimate, because fragments were not considered. This level of lead contamination was comparable to hunted bird species examined using similar methods in Europe. The quantity and characteristics of lead ammunition residues found suggest that predatory and scavenging wildlife and some groups of human consumers will be at risk of negative health impacts.
Analysis of vibrational spectra (FT-IR and VCD) and nonlinear optical properties of [Ru(L)3]2+ complexes
Creators: name: Nasarul Islam
name: Pandith, Altaf Hussain
Publisher: name: Taylor & Francis
Year: 2014
Subjects: subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Biological Sciences
subject: Cancer
subject: Developmental Biology
subject: Astronomy, Astrophysics, Space Science
subject: Chemistry
subject: Earth and Environmental Sciences
subject: Pharmacology
subject: Neuroscience
subject: Genetics
subject: FOS: Biological sciences
subject: Cell Biology
subject: Biochemistry
subject: Biophysics

description: Density functional theory calculations were performed on [Ru(L)3]2+ (L = 1,10-phenanthroline, 2,2’-bipyridine, 2,2’-bipyrimidine, 2,2’-bipyrazine) complexes by employing B3PW91 functional and LAN2DZ basis set to predict their spectra and nonlinear optical response. The geometrical and coordination energy studies explained that stability of [Ru(L)3]2+ metal complexes depends on extent of interaction of the dπ orbitals of Ru2+ with the π* ligand orbitals, which is maximum for 1,10-phenanthroline. The two enantiomers of the [Ru(L)3]2+ show IR absorptions, peaks in the region of 1100-1800 cm−1 and a slight shift occurs to lower frequency by solvent. The VCD peaks of [Ru(phen)3]2+ had major contribution from out-of-phase stretching of 1,10-phenanthroline rings and a minor contribution from H-C=C-H wagging and C=C stretching of rings. Maximum hyperpolarizability was observed for [Ru(phen)3]2+ due to stronger anharmonicity in the π-electron system. Among the [Ru(L)3]2+ (L = bpy, bpm, bpz) complexes, [Ru(bpm)3]2+ shows enhanced hyperpolarizability due to increase in the dipole along the X-direction. In derivative Ru2+ complexes, we found hyperpolarizability depends on electron donating capability of the substituent. As per FMOs study, the HOMO is predominantly metal fragment based, the LUMO is primarily ligand based and the larger value of hyperpolarizability corresponds to the lower ELUMO–EHOMO gap, reflecting that nonlinear optical response is a consequence of additive dipolar responses of charge-transfer and hyperpolarizability.
Multi-omic rejuvenation of human cells by maturation phase transient reprogramming.
Creators: name: Gill, Diljeet
name: Parry, Aled
name: Santos, Fátima
name: Okkenhaug, Hanneke
name: Todd, Christopher D
name: Hernando-Herraez, Irene
name: Stubbs, Thomas M
name: Milagre, Inês
name: Reik, Wolf
Publisher: name: Apollo - University of Cambridge Repository
Year: 2022
Subjects: Research Article
Genetics and Genomics
Stem Cells and Regenerative Medicine
ageing
reprogramming
DNA methylation
transcription
rejuvenation
Human

description: Funder: Biotechnology and Biological Sciences Research Council; FundRef: http://dx.doi.org/10.13039/501100000268
description: Funder: Milky Way Research Foundation
description: Ageing is the gradual decline in organismal fitness that occurs over time leading to tissue dysfunction and disease. At the cellular level, ageing is associated with reduced function, altered gene expression and a perturbed epigenome. Recent work has demonstrated that the epigenome is already rejuvenated by the maturation phase of somatic cell reprogramming, which suggests full reprogramming is not required to reverse ageing of somatic cells. Here we have developed the first "maturation phase transient reprogramming" (MPTR) method, where reprogramming factors are selectively expressed until this rejuvenation point then withdrawn. Applying MPTR to dermal fibroblasts from middle-aged donors, we found that cells temporarily lose and then reacquire their fibroblast identity, possibly as a result of epigenetic memory at enhancers and/or persistent expression of some fibroblast genes. Excitingly, our method substantially rejuvenated multiple cellular attributes including the transcriptome, which was rejuvenated by around 30 years as measured by a novel transcriptome clock. The epigenome was rejuvenated to a similar extent, including H3K9me3 levels and the DNA methylation ageing clock. The magnitude of rejuvenation instigated by MPTR appears substantially greater than that achieved in previous transient reprogramming protocols. In addition, MPTR fibroblasts produced youthful levels of collagen proteins, and showed partial functional rejuvenation of their migration speed. Finally, our work suggests that optimal time windows exist for rejuvenating the transcriptome and the epigenome. Overall, we demonstrate that it is possible to separate rejuvenation from complete pluripotency reprogramming, which should facilitate the discovery of novel anti-ageing genes and therapies.
title: A technique for medium-range through-thickness focusing using Lamb waves
Creators: name: Tzaferis, Konstantinos
name: Dobie, Gordon
name: Lines, Dave
name: MacLeod, Charles
Publisher: name: Strathprints - University of Strathclyde
Year: 2024

description: Medium-range guided wave testing is commonly employed for inspection of areas with restricted access. The technique usually works in pulse echo mode and at high frequency-thickness products, around 20 MHz ⋅ mm, offering good sensitivity and resolution. Defect sizing is based on the reflection amplitude of the received mode(s). However, the scattering of guided waves is complex, and the amplitude of the reflected modes does not provide sufficient information for defect sizing. This work aims to overcome this limitation using a focusing technique based on Lamb waves. Specifically, multiple Lamb wave modes are excited individually and superimposed to form a new mode with a desired through-thickness energy distribution. This way, energy is focused on a single point in the structure. Using weighting functions, the location of the focal point is swept across the thickness of the sample. The technique allows for accurate sizing of flaws, such as cracks and wall loss.
Unsupervised Continual Learning of Image Representation via Rememory-based SimSiam
Creators: Feifei Fu
Yizhao Gao
Zhiwu Lu
Haoran Wu
Shiqi Zhao
Publisher: name: IEEE Signal Processing Society
Year: 2024

description: Unsupervised continual learning (UCL) of image representation has garnered attention due to practical need. However, recent UCL methods focus on mitigating the catastrophic forgetting with a replay buffer (i.e., rehearsal-based strategy), which needs much extra storage. To overcome this drawback, we propose a novel rememory-based SimSiam (RM-SimSiam) method to reduce the dependency on replay buffer. The core idea of RM-SimSiam is to store and remember the old knowledge with a data-free historical module instead of replay buffer. Specifically, this historical module is designed to store the historical average model of all previous models (the memory process) and then transfer the knowledge of the historical average model to the new model (the rememory process). To further improve the rememory ability of RM-SimSiam, we devise an enhanced SimSiam-based contrastive loss by aligning the representations outputted by the historical and new models. Extensive experiments on three benchmarks demonstrate the effectiveness of our RM-SimSiam.
Near-field perception for low-speed vehicle automation using surround-view fisheye cameras
Creators: name: Eising, Ciarán
name: Horgan, Jonathan
name: Yogamani, Senthil
Publisher: name: University of Limerick
Year: 2024
Subjects: classificationCode: 4612
subject: Software engineering

description: Cameras are the primary sensor in automated driving systems. They provide high information density and are optimal for detecting road infrastructure cues laid out for human vision. Surround-view camera systems typically comprise of four fisheye cameras with 190°+ field of view covering the entire 360° around the vehicle focused on near-field sensing. They are the principal sensors for low-speed, high accuracy, and close-range sensing applications, such as automated parking, traffic jam assistance, and low-speed emergency braking. In this work, we provide a detailed survey of such vision systems, setting up the survey in the context of an architecture that can be decomposed into four modular components namely Recognition, Reconstruction, Relocalization, and Reorganization. We jointly call this the 4R Architecture. We discuss how each component accomplishes a specific aspect and provide a positional argument that they can be synergized to form a complete perception system for low-speed automation. We support this argument by presenting results from previous works and by presenting architecture proposals for such a system. Qualitative results are presented in the video at https://youtu.be/ae8bCOF77uY.
title: Ενοποίηση της πλακέτας Arduino με το πρωτόκολλο KNX
title: Unification of the Arduino electronic board with the KNX protocol
titleType: AlternativeTitle
Creators: name: Καμίτσος, Παρασκευάς
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2024
Subjects: Arduino
Arduino IDE
KNX
ETS6

description: Περιγραφή: To πρωτόκολλο KNX αποτελεί το πιο δημοφιλές πρότυπο για την δημιουργία κτηριακού αυτοματισμού. Είναι ένα ανοιχτό πρότυπο για αυτοματισμούς εμπορικών και οικιστικών κτηρίων και οι συσκευές KNX μπορούν να διαχειριστούν φωτισμό, περσίδες και παντζούρια, HVAC, συστήματα ασφαλείας, διαχείριση ενέργειας, κ.λπ. Στο πρότυπο ΚΝΧ συμμετέχουν πάνω από 500 εταιρίες κατασκευής ηλεκτρολογικού και ηλεκτρονικού εξοπλισμού δημιουργώντας το μεγαλύτερο δίκτυο υλισμικού (hardware) για τον κτηριακό αυτοματισμό. Αντίστοιχα το Arduino αποτελεί την πλέον γνωστή πλατφόρμα ανοικτού κώδικα για την κατασκευή πρωτοτύπων που δίνει τη δυνατότητα στους χρήστες να δημιουργούν διαδραστικά ηλεκτρονικά τεχνουργήματα. Η ενοποίησή των δύο ανοίγει νέους ορίζοντες στην δημιουργία εξοπλισμού στον κτηριακό αυτοματισμό. Σκοπός: Σκοπός της παρούσας διπλωματικής εργασίας είναι ενοποίηση της πλατφόρμας Arduino με το πρωτόκολλο ΚΝΧ. Συγκεκριμένα προβλέπεται η σχεδίαση και κατασκευή της αμφίδρομης επικοινωνίας μεταξύ Arduino και KNX ώστε να δύναται να αξιοποιηθούν οι χρηστικότεροι και οικονομικότεροι αισθητήρες που διατίθενται στην αγορά ειδικά για τις πλακέτες Arduino, λύνοντας με αυτόν τον τρόπο υλικοτεχνικά προβλήματα και περιορισμούς του πρωτοκόλλου ΚΝΧ.
title: The analysis of histopathological images of colorectal cancer (CRC) using machine learning methods
title: Ανάλυση ιστοπαθολογικών εικόνων καρκίνου του παχέος εντέρου με μεθόδους μηχανικής μάθησης
titleType: AlternativeTitle
Creators: name: Χάπεντσιουκ, Θεοδώρα
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2024
Subjects: Colorectal cancer
Benign
Malignant
Statistical analysis
Machine learning
Deep learning
Histopathological Images

description: With this drastic increase in cancer rates and deaths because of cancer, it is essential to find new and improved ways to prevent it as soon as possible (at early stages), especially colorectal cancer, which is ranked second in the cancers that cause death. Nowadays, it is occurring more and more among young people, often at an advanced stage. As it does not have specific symptoms, colorectal cancer is difficult to diagnose. Also, it is crucial to differentiate the benign lesions from the malignancies. Thus, a decision-support system was developed in this study to support this purpose. For this aim, a dataset of histopathological images with benign and malignant cases was utilized to generate features (68 in total), and statistical analysis was performed to find the features that can differentiate the categories. Furthermore, these features were used as input for creating a machine-learning system. Among the classifiers that we used were the K-Nearest Neighbors (KNN), Classification Trees (CART), and Random Forest. Recursive Feature Elimination (RFE) was employed for feature reduction, and the evaluation was conducted using Bootstrap and K-Fold cross-validation, focusing on accuracy, precision, and recall metrics. Moreover, further investigation was made to differentiate the two categories by employing some Convolutional Neural Networks (CNNs) utilizing pre-trained models, such as Vgg16, MobileNetV2, ResNet50V2, InceptionV3, and EfficientNetB0. The research proceeded by splitting the two categories into five (healthy, benign, grades I, II, and III) and testing every combination in pairs of two. The same steps, as described for the two, were followed for the five categories. The top five features that were observed to distinguish the two classes were the skewness, energy range, correlation mean, LBP6, and Gabor energy range. Also, the RF classifier using the bootstrap evaluation method satisfactorily differentiated benign from malignant with an accuracy of 90.20%, 87.63% sensitivity, and 91.99% specificity. Lastly, the RES50 model showed the best accuracy of 90.92% -for 100 epochs. Our system also performed adequately for the five categories despite the reduced size of the data per class.
Semi-Structured Validation Interview Script and Questionnaire for Personality Traits Research
Creators: name: Akarsu, Zulal
name: Yilmaz, Murat
Publisher: name: Zenodo
Year: 2020
Subjects: Semi-Structured Validation Interview
Large scale agile development
Personality
Case study

description: This is the script and questionnaire for a semi-structured interview which is used to validate preliminary findings of exploratory personality traits research according to the Big Five Inventory dimensions in a large scale software development company. This validation interview includes questions to understand how software practitioners perceive the personality traits in their teams, their effects on team performance, and potential use area of personality research in the software development field. Moreover, it includes a 5-point scale questionnaire to validate preliminary observations from a contextual personality assessment.
description: {"references": ["Akarsu Z., Orgun P., Dinc H., Gunyel B., and Yilmaz M.: Assessing Personality Traits in a Large Scale Software Development Company: Exploratory Industrial Case Study. In: Walker A., O'Connor R., Messnarz R. (eds) Systems, Software and Services Process Improvement. EuroSPI 2019. Communications in Computer and Information Science, vol 1060. Springer, Cham (2019)."]}
title: L'Homme
Publisher: name: EHESS
Year: 2019

description: Fondée en 1961 par Émile Benveniste, Pierre Gourou et Claude Lévi-Strauss, dirigée actuellement par Caterina Guenzi, la revue L’Homme accueille les multiples courants de la recherche anthropologique entendue au sens large, sans négliger pour autant l’approche interdisciplinaire.
Engineering morphogenesis of Marchantia polymorpha gemmae
Creators: name: Delmans, Mihails
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020
Subjects: morphogenesis
Marchantia polymorrpha
engineering
synthetic biology

description: Morphogenesis is an apparent yet complex process: emergence of a plant shape is the result of an intricate interplay between genetic regulation, cell physiology and mechanical processes at the tissue scale. Morphogenesis spans three levels of biological organisation, forming a nested complex system. Genes, which form the lowest level of the system, are arranged into networks that control properties of cells. Cells, which form the middle level of the system, are arranged into geometric networks, and their mechanical and chemical interactions give rise to the morphology of a whole organism. Therefore, the study of plant morphogenesis relies on understanding how genetically-driven cellular interactions influence the formation of a plant shape. Clonal propagules of Marchantia polymorpha (Marchantia), also known as gemmae, are an attractive system for studying these interactions. Gemmae are small, have a simple disk-like shape and are resilient to environmental conditions. As such, they are well-suited for fluorescent microscopy and the collection of gene expression data. These features create an opportunity to study the processes of gemma morphogenesis at tissue, cellular and genetic levels through fluorescent microscopy in a single assay. In order to enable the engineering of morphogenesis in Marchantia gemmae, tools and frameworks for obtaining, storing and analysing the observations from the three levels of biological organisation should be put into place. The work presented in this thesis focuses on the development of such tools and their application in studying the role of phytohormone auxin in Marchantia development. I introduced novel sample preparation and time-lapse imaging assays for Marchantia gemmae along with image- processing methods for the estimation of tissue expansion rates with sub-cellular resolution. These methods allowed me to hypothesise a mechanism behind the regulation of cell proliferation in Marchantia and the role auxin plays in controlling this process. Together with Bernardo Pollak, I developed MarpoDB, a gene-centric representation of the Marchantia genome that enables the search and preparation of Marchantia genetic parts for assembly into synthetic DNA constructs. I used MarpoDB to extract parts and build fluorescent reporters, providing proxies for auxin biosynthesis and signalling. The reporters were then introduced into the Marchantia genome, and the gemmae of the transgenic lines were imaged to estimate the average patterns of the reporters’ expression. The collected patterns were then overlaid on the patterns of relative tissue expansion to validate the proposed role of auxin as an inhibitor of cell proliferation and the mechanism behind its transport in Marchantia.
description: BBSRC
Eclipse Results from the Airborne Infrared Spectrometer (AIR-Spec) and the EUV Imaging Spectrometer (EIS)
Creators: name: Tañón Reyes, Naylynn
Publisher: name: Zenodo
Year: 2020
Subjects: Solar eclipses, Solar instruments, Solar electromagnetic emission, Solar corona, Solar atmosphere, Spectral line identification, Spectroscopy, Infrared telescope, Solar atmosphere, Solar physics

description: The Sun’s dynamic outermost atmospheric layer, the corona, routinely has extremely high temperatures and violent eruptions. This means the corona is in a state of hydrostatic and thermodynamic disequilibrium which leads to extreme coronal heating and solar activity, such as flares and coronal mass ejections. This activity can dramatically affect humanity’s infrastructure and technology in space and on Earth. Understanding the coronal magnetic field would allow for predictions of these violent events caused by magnetic reconnection. Measuring the magnetic field is possible through the study of the magnetically sensitive emission lines in the infrared (IR) with the Zeeman effect. The corona emits some IR emission lines, however, the solar surface’s intensity overwhelms the corona’s. To study these coronal lines, we can use the moon during a total solar eclipse to block out the surface’s continuous emission spectrum. The Airborne Infrared Spectrometer (AIR-Spec) is a pathfinder for future infrared spectrometers and spectro-polarimeters that will measure the coronal magnetic field. On July 2nd, 2019 AIR-Spec observed the total solar eclipse over the South Pacific from onboard an aircraft. The NSF/NCAR High-Performance Instrumented Airborne Platform for Environmental Research (HIAPER) flewat 13km to avoid low altitude water vapor, the primary absorber of infrared radiation on Earth. We present the first look at the results so far. AIR-Spec characterized four emission lines to determine which would work best for future instruments to measure the coronal magnetic field. Comparing the intensity gradients for the observed IR lines with EUV lines from the EUV Imaging Spectrometer (EIS) gives us information regarding the excitation processes in the corona, providing improvements to the atomic models of the associated ions. The radiatively excited IR lines will allow us to measure the magnetic field further out from the solar limb than non-radiatively excited IR lines.We also determine the value of the IR lines as plasma temperature and density diagnostics, using EIS data to supplement our analysis. The analysis of the temperature and density will help explain the behavior of the plasma, which will allow the mapping of the coronal magnetic field. Lastly, we discuss how AIR-Spec will continue its mission during both the 2020 and 2024 total solar eclipses as well as influence a proposed balloon-based coronagraph for coronal magnetic field measurements.
description: This work is supported by the NSF-REU solar physics program at SAO [grant number AGS-1560313] and the NSF Airborne InfraRed Spectrograph (AIR-Spec) 2019 Eclipse Flight [award number 1822314].
title: Αναδημιουργία εταιρικής ταυτότητας για μικρό καφέ στην επαρχία Ρεθύμνου, με επωνυμία “μπιστρό”
title: Rebranding of a visual identity for a small cafe in the countryside of Rethymno, with the brand name "μπιστρό"
titleType: AlternativeTitle
Creators: name: Νικολακάκη, Ευθυμία
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2024
Subjects: Κρήτη
Rebranding
Graphic design
Εικονογράφηση
Branding

description: Καλώς ήρθατε στο συναρπαστικό ταξίδι του rebranding του “Μπιστρό”, που βρίσκεται στην καρδιά της Αργυρούπολης (αρχαία Λάππα), ενός γραφικού χωριού στην Κρήτη με ιστορία, πηγές νερού και καταρράκτες. Η ιστορία μας ξεκινάει με την κληρονομιά μιας οικογένειας — ένα ανεκμετάλευτο χώρο, που ξεκίνησε ως ταξιδιωτικό γραφέιο και εξελήχθηκε σε ένα τυπικό τουριστικής φύσης cafe. Καθώς το καφέ μεταβαίνει σε μια νέα εποχή υπό την καθοδήγηση του γιού, φρέσκες ιδέες από το εξωτερικό εμφυσούν την ουσία του specialty καφέ στο χωριό. Πριν από την έναρξη της διαδικασίας του rebranding, ο πελάτης ζήτησε μια βασική προϋπόθεση: τη διατήρηση της αισθητικής του αρχικού λογότυπου. Και το ταξίδι μας ξεκινά.
title: Ερμηνεύσιμα μοντέλα βαθιάς μάθησης για την αναγνώριση εικόνας: συγκριτική μελέτη τεχνικών επεξηγήσιμης τεχνητής νοημοσύνης
title: Explainable deep learning models for image recognition: a comparative study of explainable artificial intelligence techniques
titleType: AlternativeTitle
Creators: name: Ευθυμίου, Ηλίας
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2024
Subjects: Pytorch
LIME
DeepSHAP
Explainable atificial intelligence
Αναγνώριση εικόνας

description: Η παρούσα διπλωματική εργασία ασχολείται με την εξερεύνηση τεχνικών επεξηγήσιμης τεχνητής νοημοσύνης για μοντέλα βαθιάς μάθησης που χρησιμοποιούνται στην αναγνώριση εικόνων. Πιο συγκεκριμένα, θα συγκριθούν και θα αξιολογηθούν διαφορετικές προσεγγίσεις για την εξήγηση της διαδικασίας λήψης αποφάσεων αυτών των μοντέλων, συμπεριλαμβανομένων μεθόδων που βασίζονται σε απόδοση, saliency maps και τεχνικών που βασίζονται σε κλίση (gradient-based techniques). Καθώς θα διερευνηθεί πως αυτές οι τεχνικές μπορούν να βοηθήσουν τους χρήστες να κατανοήσουν και να εμπιστευτούν τις αποφάσεις που λαμβάνονται απο αυτα τα μοντέλα. Η έρευνα περιλαμβάνει εκτός από αναλυτικό θεωρητικό υπόβαθρο και πειραματισμό πάνω σε μοντέλα βαθιάς μάθησης με όσο καλύτερα δεδομένα μπορούμε να έχουμε. Το σύνολο δεδομένων το οποίο θα χρησιμοποιηθεί στο πείραμα είναι το MNIST, ένα ανοικτό σύνολο δεδομένων και αρκετά γνωστό για εκπαίδευση μοντέλων αναγνώρισης εικόνας. Κατά τον πειραματισμό έχει γίνει χρήση της γλώσσας προγραμματισμού python καθώς είναι ένα αρκετά εύκολο και δυνατό εργαλείο που χρησιμοποιείται αρκετά τα τελευταία χρόνια από την επιστημονική κοινότητα, ειδικά στα πλαίσια της τεχνητής νοημοσύνης. Όσο για την εκπαίδευση των μοντέλων μηχανικής μάθησης που θα χρησιμοποιηθούν εχει επιλεγεί το framework Pytorch καθώς είναι open-source και python-friendly εργαλείο.
title: Οικονομική εξυγίανση και Δημόσια Διοίκηση : Η περίπτωση του Δήμου Σαλαμίνας
title: Financial Consolidation and Public Administration : The case of the Municipality of Salamina
titleType: AlternativeTitle
Creators: name: Αλαϊσκας, Αθανάσιος
Publisher: name: Πανεπιστήμιο Πελοποννήσου
Year: 2023
Subjects: subject: Τοπική Αυτοδιοίκηση--Ελλάδα
subject: Δημόσια Διοίκηση--Ελλάδα
subject: Οικονομική
subject: Δήμος Σαλαμίνας
subject: Οικονομική εξυγίανση
subject: Δημόσια Διοίκηση
subject: Επιτήρηση
subject: Πτώχευση

description: Στη σύγχρονη εποχή, η ανάγκη για χρηστή οικονομική διαχείριση είναι πιο επιτακτική από ποτέ. Οι δημόσιες διοικήσεις αναμένεται να παρέχουν υπηρεσίες προστιθέμενης αξίας με το χαμηλότερο δυνατό κόστος και ταυτόχρονα να αξιοποιούν με τον καλύτερο δυνατό τρόπο τους διαθέσιμους πόρους. Η οικονομική βιωσιμότητα των δημόσιων διοικήσεων αποτελεί πρόκληση για τα σύγχρονα κράτη. Οι Οργανισμοί Τοπικής Αυτοδιοίκησης (ΟΤΑ) έχουν τη δυνατότητα χρηματοδότησης από το κράτος, από ίδιους πόρους, από ευρωπαϊκά προγράμματα, από ελληνικές και ξένες τράπεζες. Σε αυτό το περιβάλλον, ο Δήμος Σαλαμίνας αντιμετώπισε οικονομικά προβλήματα και μπήκε σε πρόγραμμα οικονομικής εξυγίανσης. Λόγω κακοδιαχείρισης, ο δήμος είχε χρέη από προηγούμενα έτη και δεν ήταν σε θέση να τα αποπληρώσει .Η παρούσα εργασία επιχειρεί να διρευνήσει και να αναλύσει την οικονομική εξυγίανση του δήμου Σαλαμίνας.
title: Προγραμματισμός ρομποτικού βραχίονα για την υποστήριξη ατόμων με σωματική αναπηρία στην διαδικασία της σίτισης
title: Programming of a robotic arm to support people with physical disabilities in the feeding process
titleType: AlternativeTitle
Creators: name: Νάνου, Ελένη
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2024
Subjects: Υποστηρικτική τεχνολογία
Ρομποτικός βραχίονας Mover 6
Αυτόνομη σίτιση
Ανάπηρα άτομα

description: Η Υποστηρικτική Τεχνολογία (Assistive Technology) είναι ένας ευρύς όρος που καλύπτει οποιοδήποτε προσαρμοσμένο ή ειδικά σχεδιασμένο τμήμα εξοπλισμού, προϊόν, λογισμικό, σύστημα ή υπηρεσία το οποίο παρέχει βοήθεια στις καθημερινές δραστηριότητες των ατόμων. Η παρούσα διπλωματική εργασία αποτελεί μία προσπάθεια χρήσης ενός εμπορικού ρομποτικού βραχίονα ως υποστηρικτικό προϊόν για την αυτόνομη σίτιση ατόμων με κινητικές αναπηρίες. Ο απώτερος σκοπός αυτής της προτεινόμενης διαδικασίας είναι η εξυπηρέτηση ατόμων με κινητικές αναπηρίες, οι οποίοι χρειάζονται βοήθεια κάποιου άλλου προσώπου για να εκτελέσουν την διαδικασία της σίτισης. Για την εκτέλεση της, δημιουργήθηκε πρόγραμμα μέσω του προγραμματιστικού περιβάλλοντος CPRog του ρομποτικού βραχίονα Mover 6 της CommonPlace. Ο προγραμματισμός της συγκεκριμένης διαδικασίας προϋποθέτει καθορισμένα σημεία λήψης των αντικειμένων, δηλαδή της τροφής που πρόκειται να καταναλωθεί και προκαθορισμένη τελική θέση του χρήστη. Η διαδικασία της σίτισης διακρίνεται σε φάσεις, που είναι κοινές για όλα τα αντικείμενα, η φάση προετοιμασίας, προσέγγισης, λήψης και μεταφοράς. Χρησιμοποιήθηκαν τέσσερα σχήματα αντικειμένων σε προσομοίωση διαφορετικών ειδών τροφών, που χρειάστηκαν διαφορετική προσέγγιση από τον βραχίονα ώστε να επιτευχθεί η λήψη και η μεταφορά τους. Η σύνθεση των θέσεων που λαμβάνει ο βραχίονας σε όλες τις φάσεις αποτελούν την τροχιά κίνησης, στην οποία «εκπαιδεύτηκε» για την εκτέλεση της διαδικασίας. Η διαδικασία που αναπτύχθηκε πέτυχε τον απαιτούμενο στόχο της σίτισης των χρηστών, ωστόσο βρίσκεται σε πρώιμο στάδιο και μπορεί να αποτελέσει ισχυρή βάση για την ανάπτυξη μιας πιο αυτοματοποιημένης. Θα ήταν χρήσιμος ο αυτόματος εντοπισμός, μέσω της χρήσης καμερών, τόσο των τροφών, όσο και της τελικής θέσης που θα λάβει ο ρομποτικός βραχίονας.
Morphological and molecular clarification of the enigmatic Caulerpa floridana W.R. Taylor (Chlorophyta, Bryopsidales) from the Dry Tortugas, Florida
Creators: name: Paul, Valerie J.
name: Sauvage, Thomas
name: Wynne, Michael J.
name: Fredericq, Suzanne
Publisher: name: Taylor & Francis
Year: 2014
Subjects: subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Biological Sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Chemistry
subject: Earth and Environmental Sciences
subject: Evolutionary Biology
subject: Cell Biology

description: Morphological and molecular evidence is provided to further document the status of the enigmatic taxon known as Caulerpa floridana W.R. Taylor from White Shoal, Dry Tortugas, Florida. DNA sequencing of three historical herbarium specimens (WRT329, WRT345 and WRT349) housed at the University of Michigan Herbarium (MICH) demonstrated the molecular separation of this species based on the reconstruction of 931 nucleotides of the chloroplast gene tufA. Caulerpa floridana is sister to the western Atlantic endemic C. ashmeadii Harvey and an unknown Caulerpa taxon from the Florida Middle Grounds. Caulerpa floridana most reliably differs from C. ashmeadii by the presence of a sharp, unequivocal apiculus at the tip of each pinnule. A morphological review of southwestern Atlantic records of C. floridana from Brazil excludes these reports as representative of the species.
Rockfall runout, Mount Cimone area, Emilia-Romagna Region, Italy
Creators: name: Piacentini, Daniela
name: Ercolessi, Giulio
name: Pizziolo, Marco
name: Troiani, Francesco
Publisher: name: Taylor & Francis
Year: 2014
Subjects: subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Computational Biology

description: Numerous mass movements of different typology characterize both mountainous and piedmont sectors of the Emilia-Romagna Region (Apennine chain, North Italy). Although a less spatially frequent landslide typology within the region, rock falls represent severe threats to buildings, roads and persons due to their high propagation velocity. This paper presents an extract of the Emilia-Romagna regional map of the rock fall runout areas at a scale of 1:25,000. The analysis of rock fall runout areas was based upon a three-dimensional morphological method (TDM). The zone presented in the Main Map encompasses the area surrounding Mount Cimone, in the Emilia-Romagna Region. The proposed regional map of rockfall runout is noteworthy for planning actions and strategies aimed at the prevention and reduction of landslide risk at a regional scale.
The intrusive nature of the Châtelperronian in the Iberian Peninsula.
Creators: name: Rios-Garaizar, Joseba
name: Iriarte, Eneko
name: Arnold, Lee J
name: Sánchez-Romero, Laura
name: Marín-Arroyo, Ana B
name: San Emeterio, Aixa
name: Gómez-Olivencia, Asier
name: Pérez-Garrido, Carflos
name: Demuro, Martina
name: Campaña, Isidoro
name: Bourguignon, Laurence
name: Benito-Calvo, Alfonso
name: Iriarte, María J
name: Aranburu, Arantza
name: Arranz-Otaegi, Amaia
name: Garate, Diego
name: Silva-Gago, María
name: Lahaye, Christelle
name: Ortega, Illuminada
Publisher: name: Apollo - University of Cambridge Repository
Year: 2022
Subjects: subject: Research Article
subject: Earth sciences
subject: Biology and life sciences
subject: Social sciences
subject: FOS: Social sciences
subject: People and places
subject: Physical sciences
subject: FOS: Physical sciences

description: Multiple factors have been proposed to explain the disappearance of Neandertals between ca. 50 and 40 kyr BP. Central to these discussions has been the identification of new techno-cultural complexes that overlap with the period of Neandertal demise in Europe. One such complex is the Châtelperronian, which extends from the Paris Basin to the Northern Iberian Peninsula between 43,760-39,220 BP. In this study we present the first open-air Châtelperronian site in the Northern Iberian Peninsula, Aranbaltza II. The technological features of its stone tool assemblage show no links with previous Middle Paleolithic technology in the region, and chronological modeling reveals a gap between the latest Middle Paleolithic and the Châtelperronian in this area. We interpret this as evidence of local Neandertal extinction and replacement by other Neandertal groups coming from southern France, illustrating how local extinction episodes could have played a role in the process of disappearance of Neandertals.