| 1. |
- Kozłowski, Marcin, et al.
(author)
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Structural analysis of slender glass panel subjected to static and impact loading
- 2018
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In: Challenging Glass 6 : Conference on Architectural and Structural Applications of Glass, CGC 2018 - Proceedings - Conference on Architectural and Structural Applications of Glass, CGC 2018 - Proceedings. - 9789463660440 ; , s. 427-434
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Conference paper (peer-reviewed)abstract
- Slender glass panels are widely used as storefronts and indoor separating walls in shopping malls and public buildings. To ensure that the design and construction is technically safe for general use and that it meets current and accepted technical standards, in-situ testing is required by the building administrator or authorities. A case study was performed of an indoor glass lantern in a public building made from slender two-side supported glass panels with a complex geometry. It provides structural assessments and results of in-situ experiments including static loading and soft body impact test. Results from numerical simulations of impact loading on the glass panels complementing the experimental results are also presented. The in-situ testing proved that the structural design meets current standards regarding the static loading. The soft body impact test proved the safety of the intact panel and the panel with one ply deliberately broken. The numerical study showed that, for a more complicated geometry, the stress distribution can dramatically change over time and that stress concentrations can develop at certain locations at a late stage in the impact history.
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| 2. |
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| 3. |
- Giannitsis, Evangelos, et al.
(author)
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Contra
- 2021
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In: European Heart Journal. - : Oxford University Press. - 0195-668X .- 1522-9645. ; 42:31, s. 2979-2985
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Journal article (other academic/artistic)
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| 4. |
- Josefsson, Elisabet, 1966, et al.
(author)
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In vivo sortase A and clumping factor A mRNA expression during Staphylococcus aureus infection.
- 2008
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In: Microbial pathogenesis. - : Elsevier BV. - 0882-4010. ; 44:2, s. 103-10
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Journal article (peer-reviewed)abstract
- The Staphylococcus aureus cell surface protein clumping factor A (ClfA) and the enzyme sortase A (SrtA), which attach surface proteins to the cell wall, have both been shown to be virulence factors in models of septic arthritis and sepsis. The mRNA levels of clfA, srtA and the putative housekeeping gene gyrase B (gyrB) in S. aureus were determined using real-time PCR during the course of sepsis/septic arthritis. Expression was measured in joints, being a target of localized infection, and in kidneys, representing a systemic compartment. In infected kidneys, the mRNA levels of clfA, srtA and gyrB were all decreasing over time, from day 3 of infection to day 14. The transcript numbers of clfA and srtA decreased faster in septic mice than in mice with a non-septic disease. The mRNA levels of clfA and gyrB in joints, though, were increasing during the course of infection. These differences suggest that the specific tissue environment is decisive for the differentiation of staphylococci. Also, there was a negative relationship between bacterial load in a tissue and the numbers of clfA, srtA and gyrB transcripts per colony-forming unit. Possibly enters the majority of bacteria a metabolically dormant steady state at high bacterial loads.
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| 5. |
- Navarese, Eliano P, et al.
(author)
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The spoils of war and the long-term spoiling of health conditions of entire nations.
- 2022
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In: Atherosclerosis. - : Elsevier BV. - 1879-1484 .- 0021-9150. ; 352:July 2022, s. 76-79
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Journal article (peer-reviewed)abstract
- The healthcare system of Ukraine was already suffering from several shortfalls before February 2022, but the war of aggression started by the Russian leadership is poised to inflict a further severe blow that will have long-lasting consequences for the health of all Ukrainians. In pre-war Ukraine, noncommunicable diseases (NCDs) contributed to 91% of deaths, especially cardiovascular diseases (67%). Ukrainians have a high prevalence of risk factors for NCDs ranking among the highest levels reported by the World Health Organization (WHO) in the European (EU) Region. Cardiovascular disease is one of the key health risks for the conflict-affected Ukrainian population due to significant limitations in access to health care and interruptions in the supply of medicines and resources. The excess mortality observed during the COVID-19 pandemic, due to a combination of viral illness and chronic disease states, is bound to increase exponentially from poorly treated NCDs. In this report, we discuss the impact of the war on the public health of Ukraine and potential interventions to provide remote health assistance to the Ukrainian population.
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| 6. |
- Niklewski, Jonas, et al.
(author)
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Strengthened clay brick and lightweight aggregate concrete block walls tested under eccentric axial loading – a feasibility study on different strengthening techniques
- 2020
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In: Brick and Block Masonry - From Historical to Sustainable Masonry : Proceedings of the 17th International Brick and Block Masonry Conference - Proceedings of the 17th International Brick and Block Masonry Conference. - : CRC Press. - 9780367565862 - 9781003098508 ; , s. 987-993
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Conference paper (peer-reviewed)abstract
- Strengthening of masonry walls is a means to improve the energy performance of modern external masonry walls without further increasing their total thickness. The present paper evaluates the feasibility - here refer-ring to ease-of-application and structural performance - of several techniques aimed at strengthening mason-ry walls subjected to eccentric axial loading. Four full scale walls made of solid clay bricks and lightweight aggregate concrete blocks were strengthened using externally bonded reinforcement of conventional steel mesh, high-strength steel wire, masonry reinforcement and mechanically fastened strips of steel sheet. Each of the studied strengthening techniques is feasible from a structural perspective. Mechanically fastened steel strips require the least work, and no render is required since the steel is not exposed to fire. Steel mesh can be applied directly on the wall surface, which lowers the thickness of the render layer. Continued research with more replicates will confirm the presented conclusions.
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| 7. |
- Shahreza, S.k., et al.
(author)
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Making decision on repointing of clay brick facades on the basis of moisture content and water absorption tests results – a review of assessment methods
- 2020
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In: Brick and Block Masonry - From Historical to Sustainable Masonry : Proceedings of the 17th International Brick/Block Masonry Conference (17thIB2MaC 2020), July 5-8, 2020, Kraków, Poland - Proceedings of the 17th International Brick/Block Masonry Conference (17thIB2MaC 2020), July 5-8, 2020, Kraków, Poland. - : CRC Press. - 9781003098508 ; , s. 617-623
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Conference paper (peer-reviewed)abstract
- Use of clay brick masonry in façades is often motivated by its aesthetic values and durability. Yet, mortar joints exposed to climate agents erode over time, expected to cause elevated moisture content and water absorption. Thus, it is often recommended that 40- to 50-year-old facades should be repointed – a measure which is intrusive and costly. Decision is in many cases taken without a clear evidence that repointing will diminish water absorption and moisture content in the renovated walls. This paper presents the results of a state-of-the-art study on field and laboratory methods to measure moisture content and water absorption in clay brick masonry. For common buildings, use of low cost and time efficient measurement methods is feasible. However, prior to measurements, analysis of technical and climate data combined with a visual inspection might give a rational basis for decision on repointing or other alternative maintenance measures.
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