328 research outputs found
Erratum to the paper Bogdan, M., ”Some comments on a linear programming problem”
No full textThe present paper corrects an assertion of the author from [1]. The pivoting algorithms referred to, search for solving the linear programming problem.
Mathematics Subject Classification (2010): 90C05.
Received 6 February 2020; Accepted 31 March 2020
Czym jest dziś czytanie literatury? Ankieta
No full textWhen asked about the most important book in his life-long reading experience, Bogdan Mazan selects the Bible. When feeling blue, he chooses the collection This is the Day the Lord Has Made: 365 Daily Meditations (Dziś jest dzień Pański. Rozważania na każdy dzień, Polish translation by J. Iwaszkiewicz, Poznań 2000) by a Belgian Carmelite and Doctor of Philosophy Wilfrid Stinissen or a book by Henri Brunel, The Smile of Buddha. Zen Humor (transl. M. Pluta, Warsaw, 2004); when sad, he also reads Hašek’s Adventures of Good Soldier Svejk. In hopelessly grim situations, the author recommends to read the novel by Gottfried Burger The Adventures of Baron Münchhausen
What is reading literature today? Questionnaire
No full textQuestionnaireWhen asked about the most important book in his life-long reading experience, Bogdan
Mazan selects the Bible. When feeling blue, he chooses the collection This is the Day the
Lord Has Made: 365 Daily Meditations (Dziś jest dzień Pański. Rozważania na każdy dzień,
Polish translation by J. Iwaszkiewicz, Poznań 2000) by a Belgian Carmelite and Doctor
of Philosophy Wilfrid Stinissen or a book by Henri Brunel, The Smile of Buddha. Zen
Humor (transl. M. Pluta, Warsaw, 2004); when sad, he also reads Hašek’s Adventures of
Good Soldier Svejk. In hopelessly grim situations, the author recommends to read the
novel by Gottfried Burger The Adventures of Baron Münchhausen.Publikacja dofinansowana przez Wydział Filologiczny Uniwersytetu Łódzkiego
Visualization data on the freezing process of micrometer-scaled aqueous citric acid drops
No full textAbstractThe visualization data (8 movies) presented in this article are related to the research article entitled “Freezing and glass transitions upon cooling and warming and ice/freeze-concentration-solution morphology of emulsified aqueous citric acid” (A. Bogdan, M.J. Molina, H. Tenhu, 2016) [1]. The movies recorded in-situ with optical cryo-miscroscopy (OC-M) demonstrate for the first time freezing processes that occur during the cooling and subsequent warming of emulsified micrometer-scaled aqueous citric acid (CA) drops. The movies are made publicly available to enable critical or extended analyzes
Disruption of brainstem monoaminergic fibre tracts in multiple sclerosis as a putative mechanism for cognitive fatigue:a fixel-based analysis
No full textIn multiple sclerosis (MS), monoaminergic systems are altered as a result of both inflammation-dependent reduced synthesis and direct structural damage. Aberrant monoaminergic neurotransmission is increasingly considered a major contributor to fatigue pathophysiology. In this study, we aimed to compare the integrity of the monoaminergic white matter fibre tracts projecting from brainstem nuclei in a group of patients with MS (n = 68) and healthy controls (n = 34), and to investigate its association with fatigue. Fibre tracts integrity was assessed with the novel fixel-based analysis that simultaneously estimates axonal density, by means of 'fibre density', and white matter atrophy, by means of fibre 'cross section'. We focused on ventral tegmental area, locus coeruleus, and raphe nuclei as the main source of dopaminergic, noradrenergic, and serotoninergic fibres within the brainstem, respectively. Fourteen tracts of interest projecting from these brainstem nuclei were reconstructed using diffusion tractography, and compared by means of the product of fibre-density and cross-section (FDC). Finally, correlations of monoaminergic axonal damage with the modified fatigue impact scale scores were evaluated in MS. Fixel-based analysis revealed significant axonal damage - as measured by FDC reduction - within selective monoaminergic fibre-tracts projecting from brainstem nuclei in MS patients, in comparison to healthy controls; particularly within the dopaminergic-mesolimbic pathway, the noradrenergic-projections to prefrontal cortex, and serotoninergic-projections to cerebellum. Moreover, we observed significant correlations between severity of cognitive fatigue and axonal damage within the mesocorticolimbic tracts projecting from ventral tegmental area, as well as within the locus coeruleus projections to prefrontal cortex, suggesting a potential contribution of dopaminergic and noradrenergic pathways to central fatigue in MS. Our findings support the hypothesis that axonal damage along monoaminergic pathways contributes to the reduction/dysfunction of monoamines in MS and add new information on the mechanisms by which monoaminergic systems contribute to MS pathogenesis and fatigue. This supports the need for further research into monoamines as therapeutic targets aiming to combat and alleviate fatigue in MS.© 2021 T. Carandini, M. Mancini, I. Bogdan, C. Rae, A. Barritt, A. Sethi, N. Harrison, W. Rashid, E. Scarpini, D. Galimberti, M. Bozzali, M. Cercignani. This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. See http://creativecommons.org/licenses/by/4.0/ </p
The Use of Multi-Source Feedback as a Human Resource Management Tool
No full textThe article is devoted to the Multiple Source Assessment method as a process of Human Resource Management. Several aspects related to the definition of this method and others concerning its importance, purpose, application and feedback are presented. This method has been used for personal development at the organizational level, and then has begun to be directed to other purposes related of efficiency and performance. The method is considered revolutionary for human resources’ evaluation. It is increasingly used at an international level, with a growing prevalence. Recently, it has also begun to be used in the Romanian companies.multiple source assessment, human resource management, performance
Time-of-Flight 3D Imaging based on a SPAD-TDC Pixel Array in Standard 65 nm CMOS Technology
No full textThe interest in high performance three-dimensional (3D) imaging has grown in recent years due to immense demand in engineering, science, medicine and entertainment domains. The driving goals of state-of-the-art 3D imagers are high sensitivity to light and fine depth resolution at long range. Furthermore, high level of integration is desirable to achieve low system cost. To meet these demands, the industry has started to transition from traditional analog techniques to standard CMOS based solutions. In this thesis, a novel time-of-flight 3D CMOS imager is proposed. The focus of the design is low power consumption while maintaining human-eye safety requirements. The imager targets security applications, primarily facial recognition, but is also suitable for automotive vision and robotics. In this work, a prototype of a 32x32 pixel array is designed, where each pixel consists of a single-photon avalanche diode as photodetector and a time-to-digital converter (TDC) for fast image acquisition. The imager is expected to achieve millimeter-level depth resolution for range as long as 30 m and has a maximum frame-rate of 1000 fps. Each pixel is constructed within 25x25 ?m2 area and has a fill factor of 5.76%. The layout implementation has been carried out in a 65 nm CMOS technology and would be the first of its kind at this process node.Microelectronics & Computer EngineeringElectrical Engineering, Mathematics and Computer Scienc
Testing the Application for Analyzing Structured Entities
No full textThe paper presents the testing process of the application for the analysis of structured text entities. The structured entities are presented. Quality characteristics of structured entities are identified and analyzed. The design and building processes are presented. Rules for building structured entities are described. The steps of building the application for the analysis of structured text entities are presented. The objective of the testing process is defined. Ways of testing the application on components and as a whole are established. A testing strategy for different objectives is proposed. The behavior of users during the testing period is analyzed. Statistical analysis regarding the behavior of users in processes of infinite resources access are realized.Structured Entity, Application, Analysis, Testing, Metrics
Bogdan Kistiakovy’s Project of “State of the Future” as Synthesis of the Ideas of Liberalism and Socialism
No full textThis article is devoted to the correlation between liberal and socialist ideas in the social and philosophical conception of the prominent methodologist of social sciences and a Neo-Kantian legal theorist Bogdan Kistyakovsky. The author stresses the uncertainty of both the definition of liberalism and the principles behind attributing concrete thinkers to this movement. The article emphasises the inconsistency of classifying Kistyakovsky’s socio-philosophical concept as liberal. The analysis performed is based on Kistyakovsky’s model of the ‘state of the future’ — a project of a socialist rule-of-law state developed by Kistyakovsky at the turn of the 20th century. The article identifies distinct Marxist analogies and parallels in the contents of this project. The ‘state of the future’ as a rule-of -law socialist state should not only protect citizen’s rights and freedoms, which Kistyakovky supports as proponent of ‘natural rights’, but also ensure social justice. Moreover, he stresses the nonviolent, ‘evolutionary’ way of transition from a bourgeois rule-of-law state to a socialist one. Kistyakovsky’s project demonstrates certain ‘utopianism’, since it is future-oriented and it pursues the ethical goal of establishing a socially just society. The socioeconomic component is the most ‘Marxist’ element of Kistyakovsky’s project. It suggests an original legal interpretation of the idea of socialization of means of production. Kistyakovsky sees the capitalist form of economic organization as a form of ‘economic anarchy’ and a major obstacle to the mission of achieving social justice. This problem is solved through withdrawing all means of production from the realm of private law, which should be compensated for by the extension of public legal rights. It is concluded that it is possible to correlate B. A. Kistyakovsky’s social and philosophical views presented in the ‘state of the future’ project with the theoretical foundations of the European social democracy of the mid-20th century without considering the wholeness of the philosopher’s theoretical legacy
Author Correction:Large-scale transcriptome-wide association study identifies new prostate cancer risk regions (Nature Communications, (2018), 9, 1, (4079), 10.1038/s41467-018-06302-1)
No full textThe original version of this Article contained an error in the spelling of a member of the PRACTICAL Consortium, Manuela Gago-Dominguez, which was incorrectly given as Manuela Gago Dominguez. This has now been corrected in both the PDF and HTML versions of the Article. Furthermore, In the original HTML version of this Article, the order of authors within the author list was incorrect. The consortium PRACTICAL consortium was incorrectly listed after Bogdan Pasaniuc and should have been listed after Kathryn L. Penney. This error has been corrected in the HTML version of the Article; the PDF version was correct at the time of publication.</p
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