99 research outputs found

    Damage of the Surface Layer Gears in Grinding Process.

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    The influence of the grinding process on the condition of the surface layer (SL) obtained by the treatment of the gear with grinding wheels Al2O3, CBN, GF, SG, alloy steels with different parameters of the grinding process and the type of cooling liquid – lubricant (CLL). The stress distribution at the surface layer, structural changes, secondary hardening, forgiveness SL and drastic damage–microcracs have been presented in comparative studies

    Performance analysis of web applications created in the Spring and Laravel frameworks

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    The article compares the performance of two test applications created using the Spring Boot and Laravel application frameworks. The aim of the study is to find an answer to the research question: which framework offers better time performance. Twelve test scenarios were created for the analysis, and they were used to conduct performance tests using the Apache JMeter tool. Additionally, application metrics and community support for both frameworks were compared. The research confirmed that the application built on the Spring Boot framework has better performance

    Comparative analysis of web application interfaces with buttons in graphical and text form for universal design

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    The purpose of this article is to compare application interfaces with buttons in graphical and text form. For the needs of the research, a web application was prepared with the functionality to change the form of buttons. The analysis of the availability of the application was performed using the WAVE tool. A research group of 10 students was prepared for the eyetracking experiment and form. The surveys conducted on the eyetracker allowed to assess which version of the interface enables faster and correct execution tasks. LUT’s list was used to test the quality of the designed interface

    Osteogenesis imperfecta and potential therapies

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    Background: Osteogenesis imperfecta (OI) is a genetically determined disorder of connective tissue. In this article we reviewed epidemiology, types of OI, pathophysiology, symptoms and potential therapies.Material and methods: This paper was based on medical articles collected in PubMed from 2006 to 2022, medical websites and books. The research has been done by looking through key words such as: „osteogenesis imperfecta”, „osteogenesis imperfecta treatment”, „bisphosphonate”, „sillence classification”.Results: The pathophysiology of osteogenesis imperfecta is well understood. Treatment and symptoms of the disease depend on the type of osteogenesis imperfecta.Conclusions: Treatment of the patients with OI is challenging for health care professionals. Medical care for majority of patients with OI extends their life and improves its quality. Despite advances in science, causal treatment still does not exist

    Cognitive functions in patients with liver cirrhosis : a tendency to commit more memory errors

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    Background: Minimal hepatic encephalopathy (MHE) is the mildest form of hepatic encephalopathy (HE). For diagnostic purposes, 2 alternative batteries of psychometric screening tests are recommended. They differ from each other in terms of the cognitive domains assessed. The research was designed to provide a profile of cognitive functioning in patients with liver cirrhosis, using an assessment that covers a wider range of cognitive functions than the usual screening battery. Material and Methods: We examined 138 persons, including 88 with liver cirrhosis and 50 healthy volunteers. The Mini Mental State Examination (MMSE) was used for screening and excluding advanced cognitive impairment. Then, to assess cognitive functions in more detail, the following tests were used: Auditory Verbal Learning Test (AVLT), Letter and Semantic Fluency Tests (LF and SF), Trail Making Test (TMT A&B), Digit Symbol Test (DST), Block Design Test (BDT), and Mental Rotation Test (MRT). The MRT task has not been used in MHE diagnosis so far. Finally, 57 patients and 48 controls took part in the entire study. Results: Patients with liver cirrhosis commit significantly more errors of intrusions in the AVLT during the delayed free recall trial. Results significantly deviating from the norm in at least 2 tests were found only in 7 cirrhosis patients. Conclusions: The results do not provide any specific profile of cognitive disturbances in MHE, but suggest that cirrhosis patients have a tendency to commit more memory errors, probably due to subtle impairments of executive function
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