Double parton distributions in the nucleon on the lattice: Flavor interference effects

Information about double parton distributions (DPDs) can be obtained by calculating four-point functions on the lattice. We continue our study on the first DPD Mellin moment of the unpolarized proton by considering interference effects w.r.t. the quark flavor. In our simulation we employ an $n_f = 2 + 1$ ensemble with inverse coupling $\beta = 3.4$, and pseudoscalar masses of $m_\pi = 355~\mathrm{MeV}$ and $m_K = 441~\mathrm{MeV}$. The results are converted to the $\overline{\mathrm{MS}}$-scheme at the scale $\mu = 2~\mathrm{GeV}$. We analyze the dependence of the considered Mellin moments on the quark polarization and compare our results with quark model predictions.Comment: 9 pages, 4 figures, LATTICE2022 conference proceedings, submitted to Po

Efficient handling of stability problems in shell optimization by asymmetric ‘worst-case’ shape imperfection

The paper presents an approach to shape optimization of proportionally loaded elastic shell structures under stability constraints. To reduce the stability-related problems, a special technique is utilized, by which the response analysis is always terminated before the first critical point is reached. In this way, the optimization is always related to a precritical structural state. The necessary load-carrying capability of the optimal structure is assured by extending the usual formulation of the optimization problem by a constraint on an estimated critical load factor. Since limit points are easier to handle, the possible presence of bifurcation points is avoided by introducing imperfection parameters. They are related to an asymmetric shape perturbation of the structure. During the optimization, the imperfection parameters are updated to get automatically the ‘worst-case’ pattern and amplitude of the imperfection. Both, the imperfection parameters and the design variables are related to the structural shape via the design element technique. A gradient-based optimizer is employed to solve the optimization problem. Three examples illustrate the proposed approach. Copyright © 2007 John Wiley & Sons, Ltd

Older people living alone (OPLA) - non-kin-carers' support towards the end of life: qualitative longitudinal study protocol

Background: A growing number of older people, mainly women, live in single households. They represent avulnerable group as staying at home may turn out challenging when care needs increase, particularly at the end oflife. Non-kin-carers can play an essential role in supporting individuals' preferences to stay at home. In research Little attention has been paid to non-kin-carers, such as friends and neighbors, yet. Thus, the Older People Living Alone (OPLA) study will evaluate whether non-kin support is robust enough to enable care dependent people to stay athome even at the end of life. This paper aims to introduce the research protocol. Methods: We plan to apply a qualitative longitudinal study to better understand how older people living aloneand their non-kin-carers manage to face the challenges with increased care needs towards the end-of-life. We willconduct serial interviews with the older persons living alone and their non-kin-carers. A total of 20-25 completedata sets and up to 200 personal interviews were planned. These will be complemented by regular telephonecontacts. All interviews will be analysed following the grounded theory approach and strategies for reconstructingcase trajectories, supported by MAXQDA software. In the course of the study, inter- and transdisciplinary workshopsshall assure quality and support knowledge transfer. Discussion: This study protocol aims to guide research in a field that is difficult to approach, with regard to itstopic, methodology and the interdisciplinary approach. As this study introduces longitudinal qualitative Research methodology in the field of home care in Austria, a deeper understanding of (end-of-life-) care trajectories will beenhanced, which is of major relevance for future care planning. With investment in additional reflexivity andcommunication procedures innovative results and robust knowledge are expected outcomes

Das Somuncura Basalt Plateau in Nordpatagonien

Eine geochemische und petrologische Untersuchung an basaltischen Gesteinsproben aus dem Somuncura Hochplateau soll die Entstehung dieses Plateaus erklären

The Use Of Songs As A Didactic Tool In History Lessons

The use of music in the teaching of history brings new possibilities of working with a significant group of musical historical sources as well as modern song interpretations of historical events. This diploma thesis describes the using of songs as a didactic tool and summarizes appropriate ways and methods. Methodologically, the work is based on research using comparison, linguistic analysis and statistics. The thesis aims to summarize the possibilities of using songs in the teaching of history; how to choose appropriate songs and outline examples of what lessons look like using music. Other goals are to outline the possibilities of higher teaching efficiency using modern approaches and to open Czech history teaching to new methods and the overall use of music in history teaching, which are already used abroad. The result of the thesis is the finding that songs clearly contribute to the effectiveness of the teacher's efforts by making them more fun for the students. The fun of the lesson is connected, among other things, to the effectiveness of the teaching, and the teacher's goal is to make the teaching as effective as possible. Another important benefit is the possibility, through well- prepared lessons with songs, to modernize the teaching and apply updated methods to facilitate the achievement...Využívání hudby ve výuce dějepisu přináší nové možnosti práce s nezanedbatelnou skupinou hudebních historických pramenů i novodobých písňových zpracování dějinných událostí. Tato diplomová práce popisuje problematiku použití písní jako didaktického prostředku a shrnuje vhodné způsoby a metody. Metodicky práce vychází z výzkumu pomocí komparace, jazykové analýzy a statistiky. Práce si klade za cíl shrnout možnosti použití písní ve výuce dějepisu (jak zvolit vhodné písně) a unést příklady písní, i jak vypadají lekce s použitím hudby. Dalšími cíli je nastínit možnosti vyšší efektivity výuky pomocí moderních přístupů a otevřít českou výuku dějepisu novým metodám ve výuce dějepisu, které již jsou v zahraničí používány. Výsledkem diplomové práce je zjištění, že písně jednoznačně přispívají efektivitě pedagogovy snahy tím, že výuka je pro žáky zábavnější. Zábavnost hodiny se mimo jiné pojí s efektivitou výuky a pedagogovým cílem je, aby vyučování bylo co nejefektivnější. Dalším důležitým přínosem je možnost skrze dobře připravené lekce s písněmi modernizovat výuku a aplikovat aktualizované metody ke snazšímu dosahování klíčových kompetencí a cílů.Katedra dějin a didaktiky dějepisuFaculty of EducationPedagogická fakult

A lightweight, code generated and fast IPC-framework for C++ based applications

International audienceThe increasing complexity of embedded products introduced the need for the extensive use of the multiprogramming concept. For modern software systems, it is essential to have systems for communication and synchronization management between cooperating processes. Inter-Process-Communication (IPC) provides the solution by coordinating the activities the of cooperating processes

Sorge-Ethik im Leben mit hochbetagten Frauen und Männern: Gefühle, Bezogenheit, Achtsamkeit und die Notwendigkeit angemessener Strukturen

Ausgehend von der Psychologie der Hochaltrigkeit werden im Kontext von Verletzbarkeit Ethiken der Achtsamkeit, der Sorge und der Generativität erläutert. Vor allem im Kontext von Hilfebedürftigkeit und Angewiesenheit alter Menschen auf ihre Pflegenden und Helfenden werden Haltungen beschrieben, die einen Umgang mit dem Differenten, dem Anderen als ethisches Handeln im Kontext von Professionalität beschreiben

Vom Schönen zum Guten

Die Arbeit „Vom Schönen zum Guten“ setzt sich mit möglichen Verbindungswegen, die vom Schönen zum Guten führen, auseinander. Dabei geht es in erster Linie um den Nachweis, dass die Beschäftigung mit dem Schönen bzw. dem ästhetischen Urteilen implizit eine bestimmte Bedeutung für die Moralität des Menschen hat. Basistext dieser Arbeit ist die „Kritik der Urteilskraft“ von Immanuel Kant, in der ausdrück-lich auf Zusammenhänge zwischen dem Schönen und dem Guten hingewiesen wird. Im We-sentlichen geht es dabei um vier Momente, die unter Einbindung ausgewählter Sekundärlite-ratur diskutiert werden: 1.) Das Prinzip der Zweckmäßigkeit: Kant bestimmt jenen Gegenstand als schön, der seiner Form nach zweckmäßig für unser Erkenntnisvermögen ist. Durch die Existenz des Schönen in der Natur wird der Mensch darauf hingewiesen, dass er die Natur so auffassen kann, als wäre sie zweckmäßig eingerichtet. Das bedeutet in Folge, dass sie für die Realisierung menschli-cher Zwecke, insbesondere für jene der Sittlichkeit, offen steht, was aufgrund der Trennlinie zwischen theoretischer und praktischer Philosophie nicht selbstverständlich ist. 2.) Der „sensus communis“: Bezüglich des Beurteilungsvermögens hinsichtlich des Schönen spricht Kant von einem Gemeinsinn, insofern das für das Erleben des Schönen charakteristi-sche, freie Wechselspiel von Einbildungskraft und Verstand und das daraus resultierende Ge-fühl der Lust prinzipiell jedem Menschen zukommen kann. Zudem bedarf es für ein ästheti-sches Urteil einer „erweiterten Denkungsart“ (Kant), die das eigene Urteil durch Absehen von privaten Bedingungen auf das Denken der anderen Menschen bezieht, um ihm eine bestimmte Allgemeingültigkeit zu sichern. Beide Aspekte können als gemeinschaftsbildend gelten und haben insofern auch moralische Relevanz. 3.) Das Schöne als Symbol des sittlich Guten: Im Denken über das Schöne weist Kant analoge Strukturen zu jenem bezüglich des Guten auf, insofern für beide Autonomie, Allgemeingül-tigkeit, Uneigennützigkeit, Unmittelbarkeit sowie Freiheit bei gleichzeitiger Regelgebunden-heit von entscheidender Bedeutung sind. Weil in der Auseinandersetzung mit dem anschau-lich gegebenen Schönen Denkprozesse zum Tragen kommen, die in vergleichbarer Weise hinsichtlich der nicht zu veranschaulichenden Vernunftidee der Sittlichkeit eine grundlegende Rolle spielen, vermag das Schöne nicht nur das Gute zu symbolisieren, sondern auch auf die-ses einzustimmen. 4.) Das Erhabene: Angesichts sinnlich wahrgenommener, überdimensionierter oder übermächtig erscheinender Phänomene empfindet der Mensch zunächst aufgrund des Scheiterns der Einbildungskraft bezüglich dieser Phänomene Unlust, die sich dadurch in Lust wendet, dass sich das Subjekt der eigenen Befähigung als vernunftbegabtes Wesen, das sich über alle Sinnlichkeit erheben kann, bewusst wird. Nach Kant weist uns die ästhetische Erfahrung des Erhabenen auf die Erhabenheit des eigenen Geistes hin, was primär sittliche Bedeutung hat, insofern die Kernkompetenz der Vernunft den Zusammenhang von Moralität und Freiheit betrifft. Diese vier Momente der ästhetischen Urteilskraft belegen, dass das Erleben des Schönen für den Bezug zur Moralität Relevanz haben kann, womit aber weder inhaltliche Übereinstim-mungen noch ein wechselseitiges Bedingungsverhältnis ausgesagt sind. Ästhetischen Ge-schmack zu haben impliziert eine Konstellation der Vernunft und eine Geisteshaltung, die jener bezüglich des sittlich Guten verwandt ist. Dadurch ist ein Weg vom Schönen zum Guten möglich, was nicht zuletzt zu einem Überdenken der Positionierung des Schönen innerhalb einer Gesellschaft auffordert."From the beauty to the good" deals with possible connections between beauty and the good. It is primarily to demonstrate that employment with the beauty or the aesthetic judgments has implicitly a certain importance for the morality of man. Basic text of this work is the “Critique of Judgment” of Immanuel Kant, which refers explicitly to the relationship between the beauty and the good. In essence, it covers four moments that will be discussed with the involvement of selected secondary literature: 1.) The principle of expediency: Kant defines an object as beautiful, if its form is appropriate to our cognitive faculties. Because of the existence of beauty in nature man is pointed out that he can grasp the nature as if it were properly designed. This means in effect that nature is ready for the realization of human purposes, especially for those of morality, which due to the dividing line between theoretical and practical philosophy is not self-evident. 2.) The "common sense": Regarding the assessment of beauty Kant speaks of a sensus communis. The characteristic of the experience of beauty, free interplay of forces of knowledge and the resulting feeling of pleasure in principle belongs to every human being. An aesthetic judgment also requires an "enlarged mentality" (Kant): By refraining from private conditions the own judgment is compared with the thinking of other people, to make sure a certain generality. Both aspects can strengthen the cohesion of a community and therefore have moral relevance. 3.) The beauty as a symbol of the moral good: In thinking about beauty Kant discovers similar structures to that on morality. For both autonomy, universality, altruism, immediacy and freedom are crucial. In dealing with beauty thought processes are involved, which in a similar way play a fundamental role concerning the rational idea of morality. Therefore beauty can not only symbolize the good, but can also prepare for this. 4.) The sublime: Facing overwhelming phenomena man first feels pain because of the failure of the forces of knowledge. This pain turns into pleasure because the individual becomes aware of his own qualifications as a rational being who can rise above all the sensuous. According to Kant the aesthetic experience of the sublime draws attention to the grandeur of the own spirit, which has primary moral significance. These four moments of the aesthetic judgment validate that the experience of beauty may have relevance for the reference to morality. But that does not mean a mutual dependency. Having aesthetic taste implies a constellation of reason and an attitude that is near to the thinking about morality. This creates a path from the beauty to the good, not at least of which prompts a rethinking of the positioning of beauty within a society

Autonomous 3D geometry reconstruction through robot-manipulated optical sensors

Many industrial sectors face increasing production demands and the need to reduce costs, without compromising the quality. The use of robotics and automation has grown significantly in recent years, but versatile robotic manipulators are still not commonly used in small factories. Beside of the investments required to enable efficient and profitable use of robot technology, the efforts needed to program robots are only economically viable in case of large lot sizes. Generating robot programs for specific manufacturing tasks still relies on programming trajectory waypoints by hand. The use of virtual simulation software and the availability of the specimen digital models can facilitate robot programming. Nevertheless, in many cases, the virtual models are not available or there are excessive differences between virtual and real setups, leading to inaccurate robot programs and time-consuming manual corrections. Previous works have demonstrated the use of robot-manipulated optical sensors to map the geometry of samples. However, the use of simple user-defined robot paths, which are not optimized for a specific part geometry, typically causes some areas of the samples to not be mapped with the required level of accuracy or to not be sampled at all by the optical sensor. This work presents an autonomous framework to enable adaptive surface mapping, without any previous knowledge of the part geometry being transferred to the system. The novelty of this work lies in enabling the capability of mapping a part surface at the required level of sampling density, whilst minimizing the number of necessary view poses. Its development has also led to an efficient method of point cloud down-sampling and merging. The article gives an overview of the related work in the field, a detailed description of the proposed framework and a proof of its functionality through both simulated and experimental evidences