cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Investigation of liquid metal embrittlement avoidance strategies for dual phase steels via electro-thermomechanical finite element simulation
Creators: name: Biegler, Max
name: Böhne, Christoph
name: Seitz, Georg
name: Meschut, Gerson
name: Rethmeier, Michael
name: :Unav
Publisher: name: Fraunhofer-Gesellschaft
Year: 2022
Subjects: LME
Liquid Metal Embrittlement
Resistance Spot Welding
Advanced High Strength Steels,
Crack Avoidance

description: Modern advanced high-strength steel (AHSS) sheets used in automotive body construction are mostly zinc coated for corrosion resistance. The presence of zinc can cause cracking in steels due to liquid metal embrittlement (LME) during resistance spot welding (RSW). In combination with factors such as tensile strains, liquid zinc can lead to the formation of brittle, intergranular cracks in the weld and heat affected zone. While practical investigations to mitigate LME occurrence exist, the reason why a certain parameter might cause or prevent LME is often unknown. Numerical resistance spot welding simulation can visualize the underlying stresses, strains and temperatures during the welding process and investigate experimentally unmeasurable phenomena. In this work, a 3-dimensional electro-thermomechanical finite element approach is used to assess and investigate the critical parameters leading to LME occurrence. Experimentally observed crack sizes are correlated with the corresponding local strain rates and temperature exposure durations in the simulation. With this data, a map of LME occurrence over driving influence factors is drafted and discussed for effectiveness.
The moderating roles of self-reflection and self-insight in the relationship between religious coping methods and the resilience of Australian protestant ministers
Creators: name: Bucknell, Kirsten
Publisher: name: Macquarie University
Year: 2022
Subjects: Other education not elsewhere classified

description: The frequency, and the personal and vicarious nature of stressors faced by ministry workers have been identified as contributing factors to burn-out in ministry. This thesis aimed to extend the Systematic Self-Reflection Model of Resilience Strengthening, exploring the roles of self-reflection and self-insight in refining the use of religious coping methods, to strengthen well-being and resilience within a ministry population. To test hypotheses, 277 Australian Protestant ministry workers completed an online survey. The mean age of participants was 46.7 years and 19.9% of the sample was female. The survey assessed wellbeing and perceived resilience as outcome variables, with stressor frequency, self-reflection, self-insight, and six religious coping methods as predictor variables. Hierarchical regression analyses found that self-reflection and self-insight were positively related to aligned religious coping methods and that self-insight was positively related to both well-being and perceived resilience. Aligned religious coping methods were generally found to be related to wellbeing, but not to resilience. Together, findings emphasise the importance of self-insight. For ministry workers seeking to strengthen resilience, this study supports activity that builds self-insight to refine use of coping methods aligned to religious values.
Erzeugung Wasserstoff - technologischer Überblick und Einordnung verschiedener Verfahren
Creators: name: Smolinka, Tom
name: :Unav
Publisher: name: Fraunhofer-Gesellschaft
Year: 2024
Subjects: hydrogen production
water electrolysis

description: Wasserstoff ist seit über 100 Jahren ein wichtiger Grundstoff in der (petro-)chemischen Industrie, der heutzutage vor allem durch Dampfreformierung aus Erdgas gewonnen wird. Mit dem zunehmenden Ausbau erneuerbarer Energien wie Wind und Solar wächst die Bedeutung von Wasserstoff und seiner Derivate als stofflicher Energieträger und Speichermedium für die Transformation des Energiesystems. Das zentrale Herstellungsverfahren von Wasserstoff aus erneuerbaren Energien ist die elektrochemische Wasserspaltung, auch Wasserelektrolyse genannt. Ferner können auch photoelektrochemische und photokatalytische, solarthermochemische und photobiologische Prozesse aus solarer Energie direkt Wasserstoff oder andere chemische Energieträger erzeugen. Darüber ist die Produktion von Wasserstoff auch aus biogenen Quellen und Reststoffen durch Verfahren wie die Fermentation, Reformierung, Vergasung, Pyrolyse und Plasmalyse möglich. Der Vortrag liefert einen Überblick über diese Verfahren, diskutiert ihre Vor- und Nachteile und vergleicht sie mit den konventionellen Verfahren, welche Wasserstoff aus fossilen Energieträgern erzeugen.
The activation frequency self-organizing map
Creators: name: Neme, Antonio
name: Miramontes, Pedro
Publisher: name: International Workshop on Self-Organizing Maps : Proceedings
Year: 2007

description: In the self-organizing map (SOM), the best matching units (BMUs) affect neurons as a function of distance and the learning parameter. Here we study the effects in SOM when a new parameter in the learning rule, the activation frequency, is included. This parameter is based on the relative frequency by which each neuron is included in each BMU's neighborhood, so there is an individual memory (synapse strength) of the activation received from each neuron. The parameter leads to non-radial influence areas for BMUs, what is a more realistic feature observed in the brain cortex which modifies the map formation dynamics, including the fact that the weight vector for BMU may not be the closest one to the input stimulus after weight adaptation. Also, two error measures are lower for the maps trained with this model than those obtained with SOM, as shown in several experiments with six data sets.
description: International Workshop on Self-Organizing Maps : Proceedings, The 6th International Workshop on Self-Organizing Maps (WSOM 2007)
SINO-AFRICAN ECONOMIC COOPERATION 2010-2020S
Creators: name: Strokov, I.D.
Publisher: name: Экономика и бизнес: теория и практика
Year: 2022
Subjects: CHINA'S ECONOMIC POLICY
SINO-AFRICAN RELATIONS
TRADE AND INVESTMENTS
ONE CHINA POLICY

description: The article examines the economic cooperation between the People's Republic of China and African countries in the period from 2010 to 2020. The article explains the reason for China's so high interest in the African continent, which the United States and Europe perceive as a source of migration, corruption, terrorism and insecurity. Based on the above data and analysis, the author suggests that China is interested in cooperation with Africa to obtain a stable source of energy resources, as well as for support at the level of international organizations in exchange for Chinese investments and technologies.
Mapping of the Genome Sequence Using Two-stage Self Organizing Maps
Creators: name: Dozono, Hiroshi
name: Takahashi, Takeshi
Publisher: name: International Workshop on Self-Organizing Maps : Proceedings
Year: 2007

description: In this paper, we introduce an algorithm of Self-Organizing Maps(SOM) which can map the genome sequence continuously on the map. The DNA sequences are considered to have the special features depending on the regions where the sequences are taken from or the gene functions of the proteins which are translated from the sequences. If the hidden features of the DNA sequences are extracted from the DNA sequences, they can be used for predicting the regions or the functions of the sequences. In this paper, we propose the algorithms using two stage SOM which organizes the sequences of the specific length at the first stage and organizes the set of sequences at the 2nd stage This algorithm can map the genome sequences on the map at each stage depending on the features of the sequences. We made some analyses of the genome sequences concerning the functions, species and secondary structure of the sequences.
description: International Workshop on Self-Organizing Maps : Proceedings, The 6th International Workshop on Self-Organizing Maps (WSOM 2007)
Dimensionality Reduction of very large document collections by Semantic Mapping
Creators: name: Corrêa, Renato Fernandes
name: Ludermir, Teresa Bernarda
Publisher: name: International Workshop on Self-Organizing Maps : Proceedings
Year: 2007

description: This paper describes improving in Semantic Mapping, a feature extraction method useful to dimensionality reduction of vectors representing documents of large text collections. This method may be viewed as a specialization of the Random Mapping, method proposed in WEBSOM project. Semantic Mapping, Random Mapping and Principal Component Analysis (PCA) are applied to categorization of document collections using Self-Organizing Maps (SOM). Semantic Mapping generated document representation as good as PCA and much better than Random Mapping.
description: International Workshop on Self-Organizing Maps : Proceedings, The 6th International Workshop on Self-Organizing Maps (WSOM 2007)
Supplementary document for Tuning axial and lateral localization precision in 3D super-resolution microscopy with variable astigmatism - 6088449.pdf
Creators: name: Chowdhury, Rajdeep
name: Sau, Abhishek
name: Chao, Jerry
name: Sharma, Ankith
name: Musser, Siegfried
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Biophysics

description: Supplemental Document
An Energy Function-Based Optimization of Matching Parameters and Reference Vectors in SOR Network
Creators: name: Misawa, Hideaki
name: Yamakawa, Takeshi
Publisher: name: International Workshop on Self-Organizing Maps : Proceedings
Year: 2007

description: In this paper we propose an energy function-based optimization method in order to improve the approximation ability of the self-organizing relationship (SOR) network. In the execution mode, the SOR network can be used as a fuzzy inference engine. The output of the SOR network is calculated by using the reference vectors and matching parameters. The matching parameters, which correspond to the standard deviation of the Gaussian membership function used in fuzzy inference, are only defined in the execution mode. However, the issue of the optimization of the matching parameters has not yet been treated in previous works. To optimize the matching parameters, we introduce an energy function to the SOR network. The energy function can be used to tune not only the matching parameters but also the reference vectors with a gradient descent method. The proposed method is applied to a function approximation problem and the improvement of the approximation ability is confirmed.
description: International Workshop on Self-Organizing Maps : Proceedings, The 6th International Workshop on Self-Organizing Maps (WSOM 2007)
A new find of Islamic coins from Pusi on the western coast of Lake Peipsi
Creators: name: Leimus, Ivar
name: Karro, Krista
name: Smirnova, Maria
Publisher: name: Arheoloogilised Välitööd Eestis
Year: 2025

description: A new find of Islamic coins from Pusi on the western coast of Lake Peipsi
description: Arheoloogilised Välitööd Eestis, 2020
THE IMPACT OF ECOSYSTEM IMPLEMENTATION ON BUSINESS
Creators: name: Kiselev, D.I.
Publisher: name: Экономика и бизнес: теория и практика
Year: 2022
Subjects: ECOSYSTEM
ECOSYSTEM IMPLEMENTATION
BUSINESS ECOSYSTEM
ORGANIZATIONAL STRUCTURE
DIGITAL ECONOMY

description: The article considers the reasons for the popularization of ecosystems in the modern economy as a result of the development of management and the transition of the economy from the traditional to the digital economy. The main factors that affect the implementation of the ecosystem in the business were identified. Based on the study of modern scientific literature, indicators were identified that show the impact of the introduction of the ecosystem on business. Also in this scientific article, a study of the impact of the introduction of ecosystems was conducted on the example of Sberbank based on the data found in the annual reports and other open sources of information and calculated in the course of the study. The data obtained in the course of the study were analyzed and conclusions were formed showing the impact of the introduction of the organizational structure of the ecosystem in the business.
Detection of ambiguous patterns in a SOM based recognition system: application to handwritten numeral classification
Creators: name: Seijas, Leticia Maria
name: Segura, Enrique Carlos
Publisher: name: International Workshop on Self-Organizing Maps : Proceedings
Year: 2007

description: This work presents a system for pattern recognition that combines a self-organising unsupervised technique (via a Kohonen-type SOM) with a bayesian strategy in order to classify input patterns from a given probability distribution and, at the same time, detect ambiguous cases and explain answers. We apply the system to the recognition of handwritten digits. This proposal is intended as an improvement of a model previously introduced by our group, consisting basically of a hybrid unsupervised, self-organising model, followed by a supervised stage. Experiments were carried out on the handwritten digit database of the Concordia University, which is generally accepted as one of the standards in most of the literature in the field.
description: International Workshop on Self-Organizing Maps : Proceedings, The 6th International Workshop on Self-Organizing Maps (WSOM 2007)
Scandinavian chieftains in Saaremaa? Archaeological investigations in Ure, a probable Roman Period sacrificial place
Creators: name: Mägi, Marika
Publisher: name: Arheoloogilised Välitööd Eestis
Year: 2025

description: Scandinavian chieftains in Saaremaa? Archaeological investigations in Ure, a probable Roman Period sacrificial place
description: Arheoloogilised Välitööd Eestis, 2020
Archaeological investigations of the stone graves on Kadaka klint, Tallinn
Creators: name: Vedru, Gurly
name: Allmäe, Raili
name: Maldre, Liina
name: Maldre, Reet
Publisher: name: Arheoloogilised Välitööd Eestis
Year: 2025

description: Archaeological investigations of the stone graves on Kadaka klint, Tallinn
description: Arheoloogilised Välitööd Eestis, 2020
Speaker Identification by BYY Automatic Local Factor Analysis based Three-Level Voting Combination
Creators: name: Shi, Lei
name: Luo, Dingsheng
name: Xu, Lei
Publisher: name: International Workshop on Self-Organizing Maps : Proceedings
Year: 2007

description: Local Factor Analysis (LFA) is known as more general and powerful than Gaussian Mixture Model (GMM) in unsupervised learning with local subspace structure analysis. In the literature of text-independent speaker identification, GMM has been widely used and investigated, with some preprocessing or postprocessing approaches, while there still lacks efforts on LFA for this task. In pursuit of fast implementation for LFA modeling, this paper focuses on the Bayesian Ying-Yang automatic learning with data smoothing based regularization (BYY-A), which makes automatic model selection during parameter learning. Furthermore for sequence classification, based on trained LFA models, we design and analyze a three-level combination, namely sequence, classifier and committee, respectively. Different combination approaches are designed with variant sequential topologies and voting schemes. Experimental results on the KING speech corpus demonstrate the proposed approaches' effectiveness and potentials.
description: International Workshop on Self-Organizing Maps : Proceedings, The 6th International Workshop on Self-Organizing Maps (WSOM 2007)
Ausgrabungen in Asva im Jahr 2020 – Auf den Spuren des Bronzegieẞerplatzes
Creators: name: Sperling, Uwe
name: Karlsen, Hans-Jörg
name: Lang, Valter
name: Lõugas, Lembi
name: Lau, Ronja
Publisher: name: Arheoloogilised Välitööd Eestis
Year: 2025

description: Ausgrabungen in Asva im Jahr 2020 – Auf den Spuren des Bronzegieẞerplatzes
description: Arheoloogilised Välitööd Eestis, 2020
Archaeological excavations at the Riigiküla IV settlement site in north-eastern Estonia
Creators: name: Kriiska, Aivar
name: Nordqvist, Kerkko
name: Macane, Aija
name: Khrustaleva, Irina
Publisher: name: Arheoloogilised Välitööd Eestis
Year: 2025

description: Archaeological excavations at the Riigiküla IV settlement site in north-eastern Estonia
description: Arheoloogilised Välitööd Eestis, 2020
Vessel Extracting Gas - Using self organization in the extraction of vascular trees
Creators: name: Zühlke, Dietlind
Publisher: name: International Workshop on Self-Organizing Maps : Proceedings
Year: 2007

description: A network model is introduced that allows the extraction of the topological structure of a set of input vectors corresponding to image voxels from a 3D doppler or contrast enhanced ultrasound. This extraction is a precondition for many medical image registration algorithms. Results on artificial and real ultrasound image data sets are discussed.
description: International Workshop on Self-Organizing Maps : Proceedings, The 6th International Workshop on Self-Organizing Maps (WSOM 2007)
Transform Learning - Registration of medical images using self organization
Creators: name: Zühlke, Dietlind
Publisher: name: International Workshop on Self-Organizing Maps : Proceedings
Year: 2007

description: A network model is introduced that allows a multimodal registration of two images. It can be used for a image-model or a model-model registration. The application of the network to registering tomographic to 3D ultrasonic data is introduced. Results on artificial and real ultrasound image data sets are discussed.
description: International Workshop on Self-Organizing Maps : Proceedings, The 6th International Workshop on Self-Organizing Maps (WSOM 2007)
The Power of Communities
Creators: name: Gábor, Kismihók
Publisher: name: Zenodo
Year: 2024
Subjects: subject: Occupational health
subject: researcher mental health

description: This presentation is done for the Young Academy Europe webinar on "Structures under stress: How we can collectively rebuild our academic systems to address mental health"

Gábor Kismihók talked about how small, bottom-up initiatives can make a change when it comes to improving the poor mental wellbeing situation in academia. These initiatives include networking activities, teaching and learning activities, Artificial Intelligence based learning recommendations for better wellbeing and academic career management skills, and lobbying for better wellbeing policies. 

More info: https://yacadeuro.org/structures-under-stress-how-we-can-collectively-rebuild-our-academic-systems-to-address-mental-health/ 
description: Gábor Kismihók is the Chair of the ReMO COST Action on Researcher Mental Health (CA19117), supported by COST (European Cooperation in Science and Technology).
Archaeological fieldwork in 2020
Creators: name: Russow, Erki
name: Kadakas, Ulla
name: Rammo, Riina
name: Haak, Arvi
Publisher: name: Arheoloogilised Välitööd Eestis
Year: 2025

description: Archaeological fieldwork in 2020
description: Arheoloogilised Välitööd Eestis, 2020
Sphex hispidus F. Morawitz 1890
Creators: name: Danilov, Yuriy N.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Pompilidae
Sphex
Sphex hispidus

description: Sphex hispidus F. Morawitz, 1890
(Fig. 12)
A junior subjective synonym of Prionyx persicus (Mocsáry, 1883) (Danilov 2012, Pulawski 2015).
Types. Sphex hispidus F. Morawitz, 1890: 576, ♀. Lectotype, designated by Danilov (2012), ♀ "Artschman Christoph // к. Ф Моравица [cyrillic] // Sphex Harpactopus hispidus ♀ F. Morawitz // Lectotypus Sphex hispidus F. Morawitz, 1890 Yu. Danilov design. 2012 [red label]".
Type locality. "Artschman" [= Archman, Ahal Province, Turkmenistan, 38°35′N 57°7′E].
description: Published as part of Danilov, Yuriy N., 2016, Type specimens of Sphecidae (Hymenoptera, Apoidea) in the Zoological Institute of the Russian Academy of Sciences in St. Petersburg, pp. 335-359 in Zootaxa 4136 (2) on page 340, DOI: 10.11646/zootaxa.4136.2.5, http://zenodo.org/record/261605
Arte e scienza internazionale: il “modernismo” fascista negli anni Venti
Creators: name: Cioli, Monica
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2016
Subjects: L-ART/03 Storia dell'arte contemporanea
M-STO/04 Storia contemporanea
SPS/02 Storia delle dottrine politiche

description: L’ipotesi di fondo del libro si basa sulla constatazione che la scienza e l’arte siano, insieme al lavo-ro, gli strumenti principali con i quali il duce ha aderito allo Zeitgeist del modernismo. Integrando lo studio del Congresso internazionale di fisica tenuto a Como nel 1927 con altri eventi culturali di marca fascista – la partecipazione italiana all’“Exposition Internationale des Arts Décoratifs et Industriels Modernes” del 1925 e il Congresso internazionale di matematica svoltosi a Bologna nel 1928 – emerge nel disegno come nella pratica di Benito Mussolini, un filo conduttore che passa per l’arte e la scienza. Due campi da considerare con attenzione particolare da parte del nuovo regime allo scopo innanzi tutto di conquistare credibilità e reputazione in ambito internazionale, ma anche due campi su cui operare per obiettivi politici interni, a partire da quello di legare al fascismo strati differenziati di operatori intellettuali, che dovevano contribuire a formare quella nuova classe dirigente di cui il regime aveva bisogno
Prionyx (Harpactopus) reymondi
Creators: name: Odintsev, Yuriy N. Danilov Oleg A.
name: Kobets, Anastasia S.
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Sphecidae
Prionyx
Prionyx reymondi

description: Prionyx (Harpactopus) reymondi (Roth, 1954)
(Fig. 10c)
Sphex reymondi Roth 1954:31, ♀, ♂. Holotype: ♀, “Ougarta (Sud oranais)” [Algeria: Béchar Province: Béni Abbès commune: Ougarta] (MNHN).— As Sphex (Priononyx) reymondi: de Beaumont 1968:149.— As Prionyx reymondi: R. Bohart & Menke 1976:134; Danilov & Odintsev 2023:433; Pulawski 2024:29.
Possible synonymy. We did not find any differences from P. zarudnyi except for the distribution in P. Roth’s description. In the description, P. Roth compared the new species only with P. crudelis that was well known to him. Unfortunately, we were unable to study the type series of this species, so we can only assume that P. reymondi may be a synonym of P. zarudnyi.
Diagnosis. Both sexes of P. reymondi resemble P. subfuscatus, P. judaeus, and P. crudelis, but differ in having the wings smoky and the body brownish (P. subfuscatus, P. judaeus, and P. crudelis have the wings yellow and the body black).
Description. Body brownish with fine dark erect setae. Head. Clypeus, subantennal sclerite, paraocular area and frons with fine, sparse, appressed, silvery setae. Mesosoma. Scutum slightly shiny, finely micropunctate and sparsely punctate. Metanotum tuberculate dorsally. Mesopleuron, metapleuron and propodeum areolate-rugose, shiny; propodeal enclosure dull. Wings smoky; veins light brown. Legs. Claws with 2 ventral teeth; arolia present.
Male. Body length 22 mm. Head. Clypeus with wide V-shaped median emargination. Metasoma. S6 entire, without teeth.
Female. Body length 22 mm. Head. Clypeus angulate, with U-shaped median notch. Legs. Tarsal rake of foreleg with long, stout, bladelike and some short, hairlike setae.
Material examined. None.
Distribution. Desert areas of the Saoura area (Algeria).
description: Published as part of Odintsev, Yuriy N. Danilov Oleg A. & Kobets, Anastasia S., 2024, A taxonomic study on the genus Prionyx Vander Linden, 1827 (Hymenoptera: Sphecidae: Prionychini). Subgenus Harpactopus F. Smith, 1856, pp. 263-298 in Zootaxa 5551 (2) on page 279, DOI: 10.11646/zootaxa.5551.2.3, http://zenodo.org/record/14421160
EXPERIENCE OF CERTAIN FOREIGN COUNTRIES IN INVESTIGATING CRIMES RELATED TO VIOLATIONS OF TRAFFIC SAFETY RULES OR VEHICLE OPERATION, AND ITS APPLICATION TO THE NATIONAL LEGISLATION OF THE REPUBLIC OF UZBEKISTAN
Creators: name: Majidov, Jamshed
Publisher: name: Zenodo
Year: 2025

description: The article presents the author's views on the experience of some foreign countries and its application to the national legislation of the Republic of Uzbekistan.
Advanced metric adaptation in Generalized LVQ for classification of mass spectrometry data
Creators: name: Schneider, Petra
name: Biehl, Michael
name: Schleif, Frank-Michael
name: Hammer, Barbara
Publisher: name: International Workshop on Self-Organizing Maps : Proceedings
Year: 2007

description: Metric adaptation constitutes a powerful approach to improve the performance of prototype based classication schemes. We apply extensions of Generalized LVQ based on different adaptive distance measures in the domain of clinical proteomics. The Euclidean distance in GLVQ is extended by adaptive relevance vectors and matrices of global or local influence where training follows a stochastic gradient descent on an appropriate error function. We compare the performance of the resulting learning algorithms for the classification of high dimensional mass spectrometry data from cancer research. High prediction accuracies can be obtained by adapting full matrices of relevance factors in the distance measure in order to adjust the metric to the underlying data structure. The easy interpretability of the resulting models after training of relevance vectors allows to identify discriminative features in the original spectra.
description: International Workshop on Self-Organizing Maps : Proceedings, The 6th International Workshop on Self-Organizing Maps (WSOM 2007)
Visual mining in music collections with Emergent SOM
Creators: name: Risi, Sebastian
name: Mörchen, Fabian
name: Ultsch, Alfred
name: Lehwark, Pascal
Publisher: name: International Workshop on Self-Organizing Maps : Proceedings
Year: 2007

description: Different methods of organizing large collections of music with databionic mining techniques are described. The Emergent Self-Organizing Map is used to cluster and visualize similar artists and songs. The first method is the MusicMiner system that utilizes semantic descriptions learned from low level audio features for each song. The second method uses tags that have been assigned to music artists by the users of the social music platform Last.fm. For both methods we demonstrate the visualization capabilities of the U-Map. An intuitive browsing of large music collections is offered based on the paradigm of topographic maps. The semantic concepts behind the features enhance the interpretability of the maps.
description: International Workshop on Self-Organizing Maps : Proceedings, The 6th International Workshop on Self-Organizing Maps (WSOM 2007)
Ab initio study of angle-resolved electron reflection spectroscopy of few-layer graphene
Creators: name: Paták, Aleš
name: Zouhar, Martin
name: Konvalina, Ivo
name: Mikmeková, Eliška Materna
name: Průcha, Lukáš
name: Müllerová, Ilona
name: Campbell, Anna Charvátová
name: Valtr, Miroslav
name: Horák, Michal
name: Křápek, Vlastimil
name: Krasovskii, Eugene
Publisher: name: arXiv
Year: 2025
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present ab initio theory for electron reflection spectroscopy of few-layer graphene for arbitrary angles of incidence. The inelastic effects are included in a consistent way using the optical potential retrieved from ab initio simulations of electron energy-loss spectra. We demonstrate a significant impact of inelastic effects even for single-layer graphene. Next, we address the ability of the electron reflection spectroscopy to determine specific parameters of graphene including not only the number of layers in the few-layer graphene but also the stacking type in the graphene multilayers, and to resolve moiré patterns in twisted graphene bilayers. We show that the predicted contrast, although significantly reduced by inelastic effects, is sufficient for the experimental detection of all considered parameters. Our findings are corroborated by a fair correspondence of our theoretical predictions with experimental data, both our own and recently published by other authors.
description: Accepted in PRB, link: https://doi.org/10.1103/PhysRevB.111.125113
Der verrückte Professor. MALIS-Projekt zur Vermittlung von Informationskompetenz an Studierende
Creators: name: Robrecht, Michèle
name: :Unav
Publisher: name: Fraunhofer-Gesellschaft
Year: 2021
Subjects: Escape Game
Informationskompetenz
Schulung
WordPress

description: Im Online Escape Game »Der verrückte Professor« steht Professor Rernat-Dipling kurz davor, seinen Exmatrikulator in Betrieb zu nehmen. Nur vier Studierende können ihn noch stoppen. Sie erhalten Hilfe von einer mysteriösen Person, die leider gar nicht so leicht zu verstehen ist. Die Präsentation enthält einen knappe Zusammenfassung des Projekts und einen Einblick in eine mobiloptimierte Kurzversion, die die Teilnehmenden auf dem Bibliothekskongress spielen durften. Keine Angst vor #spoileralarm - die Screenshots sind zensiert!
Single pass clustering for large data sets
Creators: name: Alex, Nikolai
name: Hammer, Barbara
name: Klawonn, Frank
Publisher: name: International Workshop on Self-Organizing Maps : Proceedings
Year: 2007

description: The presence of very large data sets poses new problems to standard neural clustering and visualization algorithms such as Neural Gas (NG) and the Self-Organizing-Map (SOM) due to memory and time constraints. In such situations, it is no longer possible to store all data points in the main memory at once and only a few, ideally only one run over the whole data set is still affordable to achieve a feasible training time. In this contribution we propose single pass extensions of the classical clustering algorithms NG and fuzzy-k-means which are based on a simple patch decomposition of the data set and fast batch optimization schemes of the respective cost function. The algorithms maintain the benefits of the original ones including easy implementation and interpretation as well as large flexibility and adaptability because of the underlying cost function. We demonstrate the efficiency of the approach in a variety of experiments.
description: International Workshop on Self-Organizing Maps : Proceedings, The 6th International Workshop on Self-Organizing Maps (WSOM 2007)
The self-organizing map as a visual neighbor retrieval method
Creators: name: Nybo, Kristian
name: Venna, Jarkko
name: Kaski, Samuel
Publisher: name: International Workshop on Self-Organizing Maps : Proceedings
Year: 2007

description: We have recently introduced rigorous goodness criteria for information visualization by posing it as a visual neighbor retrieval problem, where the task is to find proximate high-dimensional data based only on a low-dimensional display. Standard information retrieval criteria such as precision and recall can then be used for information visualization. We introduced an algorithm, Neighbor Retrieval Visualizer (NeRV), to optimize the total cost of retrieval errors. NeRV was shown to outperform alternative methods, but the SOM was not included in the comparison. In empirical experiments of this paper the SOM turns out to be comparable to the best methods in terms of (smoothed) precision but not on recall. On a related measure called trustworthiness, the SOM outperforms all others. Finally, we suggest that for information visualization tasks the free parameters of the SOM could be optimized for information visualization with cross-validation.
description: International Workshop on Self-Organizing Maps : Proceedings, The 6th International Workshop on Self-Organizing Maps (WSOM 2007)
A comparison between dissimilarity SOM and kernel SOM for clustering the vertices of a graph
Creators: name: Villa, Nathalie
name: Rossi, Fabrice
Publisher: name: International Workshop on Self-Organizing Maps : Proceedings
Year: 2007

description: Flexible and efficient variants of the Self Organizing Map algorithm have been proposed for non vector data, including, for example, the dissimilarity SOM (also called the Median SOM) and several kernelized versions of SOM. Although the first one is a generalization of the batch version of the SOM algorithm to data described by a dissimilarity measure, the various versions of the second ones are stochastic SOM. We propose here to introduce a batch version of the kernel SOM and to show how this one is related to the dissimilarity SOM. Finally, an application to the classification of the vertices of a graph is proposed and the algorithms are tested and compared on a simulated data set.
description: International Workshop on Self-Organizing Maps : Proceedings, The 6th International Workshop on Self-Organizing Maps (WSOM 2007)
Genome feature exploration using hyperbolic Self-Organising Maps
Creators: name: Martin, Christian
name: Diaz, Naryttza N.
name: Ontrup, Jörg
name: Nattkemper, Tim W.
Publisher: name: International Workshop on Self-Organizing Maps : Proceedings
Year: 2007

description: The advent of sequencing technologies allows to reassess the relationship between species in the hierarchically organized tree of life. Self-Organizing Maps (SOM) in Euclidean and hyperbolic space are applied to genomic signatures of 350 different organisms of the two superkingdoms Bacteria and Archaea to link the sequence signature space to pre-defined taxonomic levels, i.e. the tree of life. In the hyperbolic space the SOMs are trained by either the standard algorithm (HSOM) or in a hierarchical manner (H²SOM). For evaluating the SOM performances, distances between organisms in the feature space, on the SOM grid and in the taxonomy tree are compared pair-wise. We show that the structure recovered using the different SOMs reflects the gold standard of current taxonomy. The distances between species are better preserved when using the HSOM or H²SOM which makes the hyperbolic space better suited for embedding the high dimensional genomic signatures.
description: International Workshop on Self-Organizing Maps : Proceedings, The 6th International Workshop on Self-Organizing Maps (WSOM 2007)
Data Management Training for NewGen at the ACSS: Introduction to PIDs (Arabic)
Creators: name: Mostafa, Mohamad
Publisher: name: Zenodo
Year: 2024
Subjects: PIDs
DOIs
Open Research
Trust
Data Management
Arabic
Transparency
DataCiteGAP

description: Persistent Identifiers (PIDs) are long-lasting references to digital objects, providing a reliable means to access and cite research outputs. PIDs play a crucial role in the open research infrastructure, supporting transparency, reproducibility, and the seamless integration of research data. Different types of PIDs include DOIs (Digital Object Identifiers) for research outputs and resources, ORCIDs (Open Researcher and Contributor IDs) for uniquely identifying researchers, and Research Orgnation Registery (ROR) for institutions.In his presentation within the NewGen Program, hosted by the Arab Council for Social Sciences (ACSS), Mohamad highlights the importance of integrating PIDs in research workflows to enhance transparency and trust in the research ecosystem.
SOM-based experience representation for Dextrous Grasping
Creators: name: Steffen, Jan Frederik
name: Haschke, Robert
name: Ritter, Helge
Publisher: name: International Workshop on Self-Organizing Maps : Proceedings
Year: 2007

description: We present an approach to dextrous robot grasping which combines a purely tactile-driven algorithm with an implicit representation of grasp experience to yield an algorithm which can handle arbitrary, partially unknown grasp situations. During the grasp movement, the obtained contact information is used to dynamically adapt the grasping control by targeting the best matching posture from the experience base. Thus, the robot recalls and actuates a grasp it already successfully performed in a similar tactile context. To efficiently represent the experience, we introduce the Grasp Manifold assuming that grasp postures form a smooth manifold in hand posture space. We present a simple way of providing approximations of Grasp Manifolds using Self-Organising Maps (SOMs) and study the properties of the represented grasp manifolds concerning their smoothness and robustness against clustered training data.
description: International Workshop on Self-Organizing Maps : Proceedings, The 6th International Workshop on Self-Organizing Maps (WSOM 2007)
Improving the H2MLVQ algorithm by the Cross Entropy Method
Creators: name: Boubezoul, Abderrahmane
name: Paris, Sébastien
name: Ouladsine, Mustapha
Publisher: name: International Workshop on Self-Organizing Maps : Proceedings
Year: 2007

description: This paper addresses the use of a stochastic optimization method called the Cross Entropy (CE) Method in the improvement of a recently proposed H2MLVQ (Harmonic to minimum LVQ) algorithm, this algorithm was proposed as an initialization insensitive variant of the well known Learning Vector Quantization (LVQ) algorithm. This paper has two aims, the first aim is the use of the Cross Entropy (CE) Method to tackle the initialization sensitiveness problem associated with the original (LVQ) algorithm and its variants and the second aim is to use a weighted norm instead of the Euclidean norm in order to select the most relevant features. The results in this paper indicate that the CE method can successfully be applied to this kind of problems and efficiently generate high quality solutions. Also, good competitive numerical results on several datasets are reported.
description: International Workshop on Self-Organizing Maps : Proceedings, The 6th International Workshop on Self-Organizing Maps (WSOM 2007)
title: Portfolio of Professional Practice (PoPP) for Teachers
Creators: name: (:Unkn) Unknown
Publisher: name: University of Massachusetts Amherst
Year: 2013
Subjects: subject: International and Comparative Education
subject: Teacher Education and Professional Development

description: A PoPP is a collection of work that highlights and demonstrates my knowledge and skills of professional practice as a teacher educator. The rationale for creating my PoPP is to: Provide opportunities to set concrete goals for my practice as a teacher educator; Plan and articulate specific strategies to attain my goals of becoming an effective teacher educator; Serve as a learning instrument and provide structure by which to gather data; Reflect upon data and guide improvements in my professional practice as a teacher educator; Offer the opportunity to critique my work and evaluate the effectiveness of my practice as a teacher educator; Capture the complexities of my professional practice as a teacher educator; Create collegial interactions based on documented practice accounts; Document individual growth, excellence and talents of professional practice as a teacher educator.
VITAMINE_5G. VIrtual realiTy environment for Additive ManufacturINg Enabled by 5G
Creators: name: Weidemann, Tizia
name: Gräfe, Stefan
name: Erbil, Emre
name: :Unav
Publisher: name: Fraunhofer-Gesellschaft
Year: 2022
Subjects: Laser metal deposition with wire
5G
Virtual reality
VR
LMD-w
Process monitoring
Big data
Latency free
Realtime monitoring
Remote monitoring
Digital twin

description: The aim of the project VITAMINE_5G is to develop an inline process monitoring system for the process of laser metal deposition with wire (LMD-w). Using 5G, the aggregated data is transmitted latency-free in the Fraunhofer Edge-Cloud. By transferring the visualized data to VR glasses, immersive remote monitoring of the process is enabled.
THE OLIVE BIOPHENOL ‘OLEUROPEIN’ DISPLAYS SELECTIVE TOXICITY TOWARD PANCREATIC CANCER CELLS
Creators: name: Goldsmith, Chloe Desiree
Publisher: name: Journal of International Society of Antioxidants in  Nutrition & Health
Year: 2016

description: Introduction: Pancreatic cancer has a 5-year survival rate of less than 5% with limited effective therapeutic options, and as such, the development of novel therapeutic agents is essential. Oleuropein is the most abundant biophenol in olive products, with anti-cancer activity in cancers of the breast, colon and prostate, however no investigations have been conducted for pancreatic cancer.

Aim: This study aimed to assess the anti-cancer activity of oleuropein against pancreatic cells.

Methods: The viability of cells was assessed using the CCK-8 assay, with results compared to the standard chemotherapeutic agent gemcitabine (20nM). Induction of apoptosis was measured via Caspase 3/7 activation using a MUSE flow cell analyser.

Results: Treatment of MiaPaCa-2 pancreatic cancer cells with oleuropein (200 μM) resulted in 4% viability while no effect was observed for normal HPDE cells at this concentration. Following treatment with 150μM oleuropein, a significant induction of apoptosis, as measured by increased activation of caspase 3/7, was observed (17% - 79%).

Conclusions: Oleuropein induced apoptosis in pancreatic cancer cells (MiaPaCa-2), however, was non-toxic to normal pancreas cells (HPDE) at the same concentrations. As the chemotherapeutic agent gemcitabine is extremely toxic to HPDE cells, further investigation into the effects of oleuropein is warranted.
description: Journal of International Society of Antioxidants in  Nutrition & Health, Vol 3, No 4 (2016)
Anti-inflammatory effects of red wine polyphenols in the cardiovascular system
Creators: name: Pechanova, Olga
Publisher: name: Journal of International Society of Antioxidants in  Nutrition & Health
Year: 2016

description: We aimed to study effects of Alibernet red wine extract (ARWE) on pro-inflammatory markers, namely nuclear factor-κB (NF-κB) and inducible NOS (iNOS) and nitric oxide synthase (NOS) activity in the heart and aorta of hypertensive, obese rats (HOR). Young 6-week-old male Wistar Kyoto rats (WKY) and HOR were divided to control groups and groups treated with ARWE (25 mg/kg/day) for 3 weeks. Total NOS activity and endothelial NOS (eNOS), iNOS and NF-κB (p65) protein expressions were determined in the heart and aorta by Western blot and immunohistochemical analysis. All investigated parameter were significantly increased in the aorta of HOR. Pro-inflammatory markers like NF-κB and iNOS were increased in the heart as well. ARWE did not affect total NOS activity and eNOS expression in the aorta, however it was able to decrease NF-κB and iNOS protein expressions in both heart and aorta. In conclusion, in the cardiovascular system, Alibernet red wine extract decreased NF-κB and iNOS protein expressions elevated as a consequence of developed hypertension and obesity. This effect may represent one of the protective, anti-inflammatory properties of Alibernet red wine polyphenols on the cardiovascular risk factors like hypertension and obesity. Support: VEGA-2/0195/15, APVV-14-0932, APVV-0742-10.
description: Journal of International Society of Antioxidants in  Nutrition & Health, Vol 3, No 4 (2016)
BENEFICIAL EFFECT OF COFFEE POLYPHENOLS INTAKE ON FASTING PLASMA GLUCOSE IN ADULTS AND ELDERLY ADULTS – A POPULATION-BASED STUDY
Creators: name: Miranda, Andreia Machado
name: Steluti, Josiane
name: Vieira, Diva Dos Santos
name: Fisberg, Regina Mara
name: Marchioni, Dirce Maria
Publisher: name: Journal of International Society of Antioxidants in  Nutrition & Health
Year: 2016

description: Objective: To investigate the association between polyphenol intake from coffee and fasting plasma glucose in São Paulo. Methods: Data were retrieved from a cross-sectional population-based survey “Health Survey for São Paulo” (ISA-Capital 2008), conducted in São Paulo, Brazil in 2008, and were reported for 550 adults and elderly adults. This survey collected information on health, food intake, biochemical data, and life conditions of the population. Diet was assessed by two 24-hour dietary recalls (24HR). Polyphenol intake was calculated by matching coffee consumption data from the 24HR with the Phenol-Explorer database. The associations between intake of polyphenols and plasma glucose were tested by multiple linear regression analysis. Results: The main polyphenol proceeding from coffee was hydroxycinnamic acids [234.3(105.5,339.6)mg/day]. This study showed that fasting plasma glucose decreased significantly by an intake of hydroxycinnamic acids from coffee (β=-0.02;95%CI 0.03,-0.01), even after adjustment for sex, age, physical activity, smoking, body mass index, hypoglycemic drugs, intake of alcohol, caffeine, added sugars, total energy, and other classes of polyphenols presents in coffee. Conclusion: Polyphenols derived from coffee showed positive and significant effects on fasting plasma glucose. These findings will be useful for assessing the potential role on health of specific polyphenol-rich beverages, such as coffee.
description: Journal of International Society of Antioxidants in  Nutrition & Health, Vol 3, No 4 (2016)
Charaterization of bioactive compounds and antioxidant properties of red and white cabbage leaves extracts
Creators: name: Karoui, Iness Jabri
name: Abderrabba, Manef
Publisher: name: Journal of International Society of Antioxidants in  Nutrition & Health
Year: 2016

description: Due to its numerous beneficial properties, cabbage (Brassica Oleracea var. Capitata) has widespread use in traditional medicine, in improving digestion and mitigates pain during arthritis [1] [1] and facilitating the reduction of serum LDL levels [2][2]. The aim of our study was to evaluate red and white cabbage leaves bioactive compounds and to determine their antioxidant activities. High performance liquid chromatography was used to identify polyphenols in the methanolic extracts. White cabbage extract exhibited higher carotenoids content (0.778 mg/100 g dw), while red cabbage extract contained higher phenolics and favonoids contents and the most effective scavenging activity (IC50 = 257. 80 μg.ml-1). Cabbage can be considered as a dietary source of antioxidants.
   [1] Dominguez-Perles, R., Mena, P., Garcia-Viguera, C., & Moreno, D. A. (2014). Brassica foods as a dietary source of vitamin C: A review. Critical Reviews in Food Science and Nutrition, 54, 1076–1091.

 [2] Suido, H., Tanaka, T., Tabei, T., Takeuchi, A., Okita, M., Kishimoto, T., Kasayama, S., Higashino, K.. (2002). Mixed green vegetable and fruit beverage decreased the serum level of low-density lipoprotein cholesterol in hypercholesterolemic patients. J. Agric. Food Chem. 50 (11), 3346–3350.
description: Journal of International Society of Antioxidants in  Nutrition & Health, Vol 3, No 4 (2016)
The role of phenolics in Burdock complex on Helicobacter pylori infection
Creators: name: Wang, Chin-Kun
Publisher: name: Journal of International Society of Antioxidants in  Nutrition & Health
Year: 2016

description: Burdock (Arctium lappa), angelica (Angelica sinensis), gromwell (Lithospermum erythrorhizon) and sesame (Sesamum indicum) oil are commonly used in Chinese medicine. The aim of this study is to investigate the role of phenolics in the above burdock complex on inhibiting H. pylori infection by using the cell model and determine the improvement on human by C13-urea breath test (UBT). H. pylori positive subjects (UBT >10‰, n=36) were recruited. Burdock complex or placebo was taken for two months and two weeks of follow-up period was observed. UBT, blood sample, antioxidant capacity, total phenol, and inflammatory markers were analyzed at the initial, 4th, 8th and 10th weeks. UBT value was significantly decreased in burdock group. Moreover, antioxidant activity and total phenolics levels were also greatly increased. But inflammatory markers (CRP, IL-8, TNF- α, and IL-1β) showed no difference. In the cell model, burdock complex could not inhibit H. pylori proliferation but suppress the adhesion of H. pylori to AGS cell. The phenolics of Burdock complex could improve H. pylori infection by inhibiting H. pylori adhesion on gastric epithelial cell.
description: Journal of International Society of Antioxidants in  Nutrition & Health, Vol 3, No 4 (2016)