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  1. Book ; Online: Entwicklungsumgebung für Roboterschwärme

    Szymanski, Marc

    2011  

    Abstract: In der vorliegenden Arbeit werden der systematische Entwurf und die Entwicklung einer Entwicklungsumgebung für Roboterschwärme beschrieben, die auf die spezifischen Eigenarten solcher Multi-Roboter-Systeme (MRS) eingeht. Kernstück der ... ...

    Abstract In der vorliegenden Arbeit werden der systematische Entwurf und die Entwicklung einer Entwicklungsumgebung für Roboterschwärme beschrieben, die auf die spezifischen Eigenarten solcher Multi-Roboter-Systeme (MRS) eingeht. Kernstück der Entwicklungsumgebung sind eine interpretierte Steuersprache sowie eine dynamische interaktive Arena für Experimente. Die Entwicklungsumgebung vereinfacht den Entwurf von MRS, was in mehreren Experimenten mit verschiedenen Robotern anschaulich dargelegt wird
    Keywords Mathematics
    Size 1 electronic resource (XVIII, 219 p. p.)
    Publisher KIT Scientific Publishing
    Publishing place Verlagsort nicht ermittelbar
    Document type Book ; Online
    Note GERMAN ; Open Access
    HBZ-ID HT020196697
    ISBN 9783866446199 ; 3866446195
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  2. Book ; Online: Impact of the underlying O(4) criticality on net-proton number fluctuations

    Szymański, Michał

    2020  

    Abstract: We discuss the beam-energy dependence of ratios of the first four cumulants of the net-proton number, calculated using a phenomenologically motivated model in which critical mode fluctuations couple to protons and anti-protons. The model takes into ... ...

    Abstract We discuss the beam-energy dependence of ratios of the first four cumulants of the net-proton number, calculated using a phenomenologically motivated model in which critical mode fluctuations couple to protons and anti-protons. The model takes into account an impact of the underlying $O(4)$ criticality on the QCD phase diagram in the presence of a $Z(2)$ critical point. This allows us to capture qualitatively both the monotonic behavior of the lowest-order ratio and the non-monotonic behavior of higher-order ratios which are seen in the experimental data from the STAR Collaboration. We also discuss the dependence of our results on the coupling strength between the critical mode and the protons as well as the location of the critical point.

    Comment: Proceedings of 45th Congress of Polish Physicists, Krakow, Poland, September 13-18, 2019. 6 pages, 2 figures
    Keywords Nuclear Theory ; High Energy Physics - Phenomenology
    Subject code 612
    Publishing date 2020-01-15
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: Methods for Spatiotemporal Analysis of Human Gait Based on Data from Depth Sensors.

    Wagner, Jakub / Szymański, Marcin / Błażkiewicz, Michalina / Kaczmarczyk, Katarzyna

    Sensors (Basel, Switzerland)

    2023  Volume 23, Issue 3

    Abstract: Gait analysis may serve various purposes related to health care, such as the estimation of elderly people's risk of falling. This paper is devoted to gait analysis based on data from depth sensors which are suitable for use both at healthcare facilities ... ...

    Abstract Gait analysis may serve various purposes related to health care, such as the estimation of elderly people's risk of falling. This paper is devoted to gait analysis based on data from depth sensors which are suitable for use both at healthcare facilities and in monitoring systems dedicated to household environments. This paper is focused on the comparison of three methods for spatiotemporal gait analysis based on data from depth sensors, involving the analysis of the movement trajectories of the knees, feet, and centre of mass. The accuracy of the results obtained using those methods was assessed for different depth sensors' viewing angles and different types of subject clothing. Data were collected using a Kinect v2 device. Five people took part in the experiments. Data from a Zebris FDM platform were used as a reference. The obtained results indicate that the viewing angle and the subject's clothing affect the uncertainty of the estimates of spatiotemporal gait parameters, and that the method based on the trajectories of the feet yields the most information, while the method based on the trajectory of the centre of mass is the most robust.
    MeSH term(s) Humans ; Aged ; Gait ; Foot ; Movement ; Monitoring, Physiologic ; Spatio-Temporal Analysis ; Biomechanical Phenomena
    Language English
    Publishing date 2023-01-20
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2052857-7
    ISSN 1424-8220 ; 1424-8220
    ISSN (online) 1424-8220
    ISSN 1424-8220
    DOI 10.3390/s23031218
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: ARA: a flexible pipeline for automated exploration of NCBI SRA datasets.

    Maurya, Anand / Szymanski, Maciej / Karlowski, Wojciech M

    GigaScience

    2023  Volume 12

    Abstract: Background: One of the most effective and useful methods to explore the content of biological databases is searching with nucleotide or protein sequences as a query. However, especially in the case of nucleic acids, due to the large volume of data ... ...

    Abstract Background: One of the most effective and useful methods to explore the content of biological databases is searching with nucleotide or protein sequences as a query. However, especially in the case of nucleic acids, due to the large volume of data generated by the next-generation sequencing (NGS) technologies, this approach is often not available. The hierarchical organization of the NGS records is primarily designed for browsing or text-based searches of the information provided in metadata-related keywords, limiting the efficiency of database exploration.
    Findings: We developed an automated pipeline that incorporates the well-established NGS data-processing tools and procedures to allow easy and effective sampling of the NCBI SRA database records. Given a file with query nucleotide sequences, our tool estimates the matching content of SRA accessions by probing only a user-defined fraction of a record's sequences. Based on the selected parameters, it allows performing a full mapping experiment with records that meet the required criteria. The pipeline is designed to be easy to operate-it offers a fully automatic setup procedure and is fixed on tested supporting tools. The modular design and implemented usage modes allow a user to scale up the analyses into complex computational infrastructure.
    Conclusions: We present an easy-to-operate and automated tool that expands the way a user can access and explore the information contained within the records deposited in the NCBI SRA database.
    MeSH term(s) Amino Acid Sequence ; Databases, Factual ; High-Throughput Nucleotide Sequencing ; Metadata ; Nucleotides
    Chemical Substances Nucleotides
    Language English
    Publishing date 2023-08-17
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2708999-X
    ISSN 2047-217X ; 2047-217X
    ISSN (online) 2047-217X
    ISSN 2047-217X
    DOI 10.1093/gigascience/giad067
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: The Influence of Selected Laser Engraving Parameters on Surface Conditions of Hybrid Metal Matrix Composites.

    Szymański, Michał / Przestacki, Damian / Szymański, Paweł

    Materials (Basel, Switzerland)

    2023  Volume 16, Issue 19

    Abstract: Hybrid metal matrix composites (HMMCs) are a special type of material, possessing combined properties that belong to alloys and metals according to market demands. Therefore, they are used in different areas of industry and the properties of this type of ...

    Abstract Hybrid metal matrix composites (HMMCs) are a special type of material, possessing combined properties that belong to alloys and metals according to market demands. Therefore, they are used in different areas of industry and the properties of this type of material are useful in engineering applications, e.g., in aircraft engines and electrotechnical parts. The structure of the material requires a number of scientific studies to develop an appropriate processing technology. The paper presents the susceptibility of material from the HMMCs group with the EN AC-44300 (AISi12(Fe)) aluminum alloy matrix with a two-component reinforcement made of alumina particles (AP) and aluminosilicate fibers (AF) to thermal treatment with a laser beam. During this process, laser engraving of the researched material with variable beam power
    Language English
    Publishing date 2023-10-06
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2487261-1
    ISSN 1996-1944
    ISSN 1996-1944
    DOI 10.3390/ma16196575
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: N-Acetyl-L-cysteine Affects Ototoxicity Evoked by Amikacin and Furosemide Either Alone or in Combination in a Mouse Model of Hearing Threshold Decrease.

    Zadrożniak, Marek / Szymański, Marcin / Łuszczki, Jarogniew J

    International journal of molecular sciences

    2023  Volume 24, Issue 8

    Abstract: Drug-induced ototoxicity resulting from therapy with aminoglycoside antibiotics and loop diuretics is one of the main well-known causes of hearing loss in patients. Unfortunately, no specific protection and prevention from hearing loss are recommended ... ...

    Abstract Drug-induced ototoxicity resulting from therapy with aminoglycoside antibiotics and loop diuretics is one of the main well-known causes of hearing loss in patients. Unfortunately, no specific protection and prevention from hearing loss are recommended for these patients. This study aimed at evaluating the ototoxic effects produced by mixtures of amikacin (AMI, an aminoglycoside antibiotic) and furosemide (FUR, a loop diuretic) in the mouse model as the hearing threshold decreased by 20% and 50% using auditory brainstem responses (ABRs). Ototoxicity was produced by the combinations of a constant dose of AMI (500 mg/kg; i.p.) on FUR-induced hearing threshold decreases, and a fixed dose of FUR (30 mg/kg; i.p.) on AMI-induced hearing threshold decreases, which were determined in two sets of experiments. Additionally, the effects of N-acetyl-L-cysteine (NAC; 500 mg/kg; i.p.) on the hearing threshold decrease of 20% and 50% were determined by means of an isobolographic transformation of interactions to detect the otoprotective action of NAC in mice. The results indicate that the influence of a constant dose of AMI on FUR-induced hearing threshold decreases was more ototoxic in experimental mice than a fixed dose of FUR on AMI-induced ototoxicity. Moreover, NAC reversed the AMI-induced, but not FUR-induced, hearing threshold decreases in this mouse model of hearing loss. NAC could be considered an otoprotectant in the prevention of hearing loss in patients receiving AMI alone and in combination with FUR.
    MeSH term(s) Mice ; Animals ; Amikacin/toxicity ; Furosemide/adverse effects ; Acetylcysteine/adverse effects ; Ototoxicity ; Hearing Loss/chemically induced ; Hearing Loss/drug therapy ; Hearing Loss/prevention & control ; Anti-Bacterial Agents/adverse effects ; Hearing ; Aminoglycosides ; Deafness ; Auditory Threshold
    Chemical Substances Amikacin (84319SGC3C) ; Furosemide (7LXU5N7ZO5) ; Acetylcysteine (WYQ7N0BPYC) ; Anti-Bacterial Agents ; Aminoglycosides
    Language English
    Publishing date 2023-04-20
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms24087596
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: tRNA-Cys gene clusters exhibit high variability in Arabidopsis thaliana.

    Szymanski, Maciej / Maurya, Anand / Kopec, Piotr / Karlowski, Wojciech M

    BMC plant biology

    2023  Volume 23, Issue 1, Page(s) 623

    Abstract: Although most of the genes encoding tRNAs in plants are dispersed throughout the genome, a fraction of them form tRNA gene clusters. In Arabidopsis thaliana, the smallest of tRNA clusters on chromosome 5 consists of four tRNA-Cys-GCA genes placed within ... ...

    Abstract Although most of the genes encoding tRNAs in plants are dispersed throughout the genome, a fraction of them form tRNA gene clusters. In Arabidopsis thaliana, the smallest of tRNA clusters on chromosome 5 consists of four tRNA-Cys-GCA genes placed within repeating units of 0.4 kbp. A systematic analysis of the genomic sequences of syntenic regions from various ecotypes of A. thaliana showed that the general structure of the cluster, consisting of a tRNA-Cys pseudogene followed by repeating units containing tRNA-Cys genes, is well conserved. However, there is significant heterogeneity in the number of repeating units between different ecotypes. A unique feature of this cluster is the presence of putative transposable elements (Helitron). In addition, two further tRNA-Cys gene mini-clusters (gene pairs) in A. thaliana were identified. RNA-seq-based evaluation of expression of tRNA-Cys-GCA genes showed a positive signal for 11 out of 13 unique transcripts. An analysis of the conservation of the tRNA-Cys clusters from A. thaliana with the corresponding regions from four other Arabidopsis species suggests a sequence of events that led to the divergence of these regions.
    MeSH term(s) Arabidopsis/genetics ; Base Sequence ; Genome ; RNA, Transfer/genetics ; Multigene Family
    Chemical Substances RNA, Transfer (9014-25-9)
    Language English
    Publishing date 2023-12-07
    Publishing country England
    Document type Journal Article
    ZDB-ID 2059868-3
    ISSN 1471-2229 ; 1471-2229
    ISSN (online) 1471-2229
    ISSN 1471-2229
    DOI 10.1186/s12870-023-04632-x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Therapeutic challenge: a giant, infiltrating intrathyroidal thymic carcinoma of the thyroid gland.

    Łukasiewicz, Martyna / Śledziński, Maciej / Szymański, Michał / Kowalski, Jacek / Hellmann, Andrzej

    Polish archives of internal medicine

    2023  Volume 133, Issue 6

    MeSH term(s) Humans ; Thyroid Gland/diagnostic imaging ; Thyroid Gland/surgery ; Thyroid Gland/pathology ; Thymoma/diagnostic imaging ; Thymoma/surgery ; Choristoma/pathology ; Ultrasonography ; Thymus Neoplasms/diagnostic imaging ; Thymus Neoplasms/surgery ; Thymus Neoplasms/pathology
    Language English
    Publishing date 2023-04-06
    Publishing country Poland
    Document type Journal Article
    ZDB-ID 123500-x
    ISSN 1897-9483 ; 0032-3772
    ISSN (online) 1897-9483
    ISSN 0032-3772
    DOI 10.20452/pamw.16475
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Tool Wear and Surface Roughness in Turning of Metal Matrix Composite Built of Al

    Szymański, Michał / Przestacki, Damian / Szymański, Paweł

    Materials (Basel, Switzerland)

    2022  Volume 15, Issue 23

    Abstract: Metal matrix composites (MMCs) are a special class of materials carrying combined properties that belongs to alloys and metals according to market demands. Therefore, they are used in different areas of industry, and the properties of this type of ... ...

    Abstract Metal matrix composites (MMCs) are a special class of materials carrying combined properties that belongs to alloys and metals according to market demands. Therefore, they are used in different areas of industry, and the properties of this type of material are useful in engineering applications. Machining of such composites is of great importance to finalize the fabrication process with improved part quality. However, the process implies several challenges due to the complexity of the cutting processes and random material structure. The current study aims to examine machinability characteristics. Effects of turning a metal matrix composite built of Al
    Language English
    Publishing date 2022-11-24
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2487261-1
    ISSN 1996-1944
    ISSN 1996-1944
    DOI 10.3390/ma15238375
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Phenolic Composition of Inflorescences of Carduus nutans L.

    Kozyra, Małgorzata / Kukula-Koch, Wirginia / Szymański, Michał

    Chemistry & biodiversity

    2022  Volume 19, Issue 3, Page(s) e202100827

    Abstract: Carduus nutans L. (Compositae) has been extensively used for medicinal purposes. As other representatives of the genus it is implemented in the treatment of liver disorders and used as diuretic and digestive agent. Previous studies have determined the ... ...

    Abstract Carduus nutans L. (Compositae) has been extensively used for medicinal purposes. As other representatives of the genus it is implemented in the treatment of liver disorders and used as diuretic and digestive agent. Previous studies have determined the predominant classes of secondary metabolites in Carduus species. Among the major representatives of their extracts flavonoids, phenolic acids, coumarins, sterols and terpenes were identified. The antiradical capacity of three extracts assessed in the DPPH test revealed the highest radical scavenging properties of methanol extract (the EC
    MeSH term(s) Antioxidants/chemistry ; Carduus ; Flavonoids/chemistry ; Inflorescence/chemistry ; Phenols/analysis ; Phenols/pharmacology ; Plant Extracts/chemistry ; Plant Extracts/pharmacology
    Chemical Substances Antioxidants ; Flavonoids ; Phenols ; Plant Extracts
    Language English
    Publishing date 2022-01-27
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2139001-0
    ISSN 1612-1880 ; 1612-1872
    ISSN (online) 1612-1880
    ISSN 1612-1872
    DOI 10.1002/cbdv.202100827
    Database MEDical Literature Analysis and Retrieval System OnLINE

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