The impact of the COVID-19 pandemic on the communication of Polish speedway clubs in social media : the analysis of the phenomenon

Celem rozważań jest wpływ pandemii COVID-19 i stanu zagrożenia epidemicznego na sposób prowadzenia komunikacji przez najpopularniejsze polskie kluby żużlowe w mediach społecznościowych. Badania rozpoczęto od przeprowadzenia analizy ilościowej profili klubów żużlowych w mediach społecznościowych. Wśród kryteriów ilościowych znalazły się takie aspekty, jak m.in. tematyka postów czy zaangażowanie społeczności. W ramach badań jakościowych dokonano dogłębnej analizy treści publikowanych w mediach społecznościowych. Na podstawie zastosowanej analizy mieszanej stwierdzono, iż pandemia COVID-19 w znaczącym stopniu wpłynęła na sposób komunikacji polskich klubów żużlowych w mediach społecznościowych. Ponadto pandemia zaznaczyła się również w zachowaniu fanów, którzy zmienili sposób konsumowania przedstawianych przez kluby treści w nowych mediach.The purpose of this paper is to analyze the impact of the COVID-19 pandemic and the state of emergency connected with the epidemic threat on how the most popular Polish speedway clubs communicate on social media. The paper begins with a quantitative analysis of the profiles of speedway clubs in social media. The quantitative aspects considered include among others the subject matter of the posts and community involvement. On the other hand, as a part of the qualitative research, an in-depth analysis of the content published on social media was conducted. The mixed analysis proved that the COVID-19 pandemic had a significant impact on the communication of Polish speedway clubs in social media. Furthermore, the SARS-CoV-2 pandemic also affected the behavior of fans who changed their way of consuming the content published by the clubs in new media

Promotion of healthy nutrition of seafarers

Nutrition disorders arise from various interacting factors: cultural, environmental, genetic, physiological, and psychological. Excessive consumption of highly processed food, sugar, salt, alcohol, and saturated fats is a problem nowadays, and consumption of fish, vegetables, and fruit is insufficient. Overeating and an unbalanced diet are often accompanied by stress and a lack of physical activity. This is intensified by easy access to “comfort food”, “fast food”, and “junk food”. The number of people suffering from overweight and obesity, so-called diseases of civilization, is increasing. Not only is being overweight a risk factor for the development many other metabolic diseases, but it also significantly worsens the quality of life. This also concerns people working at sea. Obesity is favoured by emotional eating disorders (EED), uncontrolled/compulsive eating - binge eating disorders (BED), and night eating disorders (NED). Most frequently, eating is a reaction to stress or boredom. It alleviates tension and improves the mood, also of seafarers

Selected hematological and immunological parameters in pigs transferred from the rearing unit to the finishing house

The aim of the study was to determine how selected hematological and immunological parameters are affected when growing pigs are transferred from the rearing unit to the finishing house. Blood was collected from 64 healthy growing pigs one week before and one week after they were transferred to the finishing house. The following tests were performed: complete blood count with machine differential, immunoglobulin levels, C-reactive protein (CRP) level and cortisol level. Pigs were divided into two groups. Group A contained those pigs with a normal white blood cell (WBC) count, and Group B those with an elevated WBC count. Throughout the experiment, body weight and indoor microclimate conditions were also monitored. After transfer, the neutrophil count increased, while the lymphocyte count decreased. Hematocrit (HCT0, mean corpuscular hemoglobin (MCH) and mean corpuscular hemoglobin concentration (MCHC) also decreased. CRP level and cortisol level increased. Red blood cell (RBC) count was higher and mean corpuscular volume (MCV) was lower in Group B. CPR level and immunoglobulin G (IgG) level were also higher. On the other hand, average daily gain (ADG) was higher in Group A. Although the presence of subclinical infections cannot be ruled out, the changes observed were probably caused by other stressogenic factors such as transport, adaptation to a new maintenance system, and worse sanitary conditions. Those with elevated WBC counts before transport were most susceptible to adaptive stress.Keywords: Pig, transfer, immunity, C-reactive protein (CRP), cortisol, immunoglobulin, stress African Journal of Biotechnology Vol. 12(34), pp. 5258-526

Wolny dostęp w Bibliotece Głównej Uniwersytetu Marii Curie-Skłodowskiej w Lublinie – w świetle wyników badań własnych

The article presents the changes that have taken place in the Main Library of the Maria Curie-Skłodowska in Lublin, resulting from the introduction of open access to some of the col- lections. Its main goal was to indicate the problems and benefits resulting from modernization of the existing solutions related to the way of using library collections. The rules of classification of the Library of Congress and process of its implementation in the Main Library of the UMCS were discussed. The case study method and comparative analysis were used to achieve the set goals. The paper presents the results of user satisfaction surveys regarding the use of the open access zone. The conclusions were based on surveys conducted among the Library users (students and employees of Lublin universities). The information obtained during the survey showed streng- ths and weaknesses in the functioning and organization of the open access zone at the Library.W artykule przedstawiono zmiany, jakie zaszły w Bibliotece Głównej Uniwersytetu Marii Curie-Skłodowskiej w Lublinie, wynikające z wprowadzenia wolnego dostępu do części zbiorów. Zasadniczym jego celem było wskazanie problemów i korzyści wynikających z modernizacji dotychczasowych rozwiązań związanych ze sposobem korzystania ze zbiorów bibliotecznych. Omówiono zasady klasyfikacji Biblioteki kongresu oraz proces jej wdrożenia w BG UMCS. W celu udokumentowania podjętych działań związanych z omawianym projektem wykorzystano metody porównawczą oraz case study. W dalszej części zaprezentowano wyniki badań satysfakcji użytkowników dotyczące korzystania ze strefy WD. Wnioski oparto na badaniach ankietowych, przeprowadzonych wśród użytkowników BG UMCS (studentów i pracowników lubelskich uczelni). Informacje uzyskane podczas badania ankietowego pokazały mocne i słabe strony w funkcjonowaniu i organizacji strefy WD w BG UMCS

A AÇÃO DO SISTEMA IMUNOLÓGICO NO ALZHEIMER: UMA REVISÃO

A Doença de Alzheimer (DA) foi estudada pelo médico alemão Alois Alzheimer que denominou a neurodegeneração cerebral como gliose. O objetivo dessa pesquisa foi realizar uma revisão bibliográfica sobre a patologia e como o sistema imune atua na mesma. A metodologia incluiu bases de dados das plataformas Google Acadêmico, Pubmed, Revistas Nature e Science, SciELO (Scientific Eletronic Library Online), e Biblioteca Digital UniCesumar, com os descritores; exemplo: neurodegeneração e Alzheimer; linfócitos T e Alzheimer; neurônios e sistema nervoso; immune system and Alzheimer, neuroinflammation and Alzheimer; neurodegeneration and Alzheimer; lymphocytes T and Alzheimer; Tau and Alzhemeir protein. Os critérios de seleção incluíram 110 artigos publicados entre 2000 a 2020 em português e inglês, os que não correspondiam ao tema foram descartados restando 93. Uma das causas da Doença é a agregação de peptídeos beta-amiloides e da proteína Tau que são neurotóxicas, possivelmente iniciando a resposta que passa a atacar o sistema nervoso central, gerando a neurodegeneração da bainha de mielina e a neuroinflamação que aos poucos se alastra pelo cérebro, destruindo-o e causando os sintomas, teoricamente esse processo pode ser estagnado com tratamento farmacológico e outras terapias. Conclui-se que são necessários mais estudos para entender melhor a DA, o papel do sistema imune na mesma e busca por melhores tratamentos

The influence of the different content of protein fractions in sows’ milk in piglet rearing

The aim of this study was to investigate the influence of the percentage content of protein fractions in total protein of sow`s colostrums and milk and their influence on the traits related with piglet rearing. The animal specimens were 20 sows of the native Złotnicka White breed. Złotnicka pigs were subjected to the National Genetic Resources Conservation Programme. Colostrum and milk were collected between the 20th and 24th h after parturition and on the 2nd, 3rd, 7th, 14th and 21st day of lactation. A total of 120 samples (60 colostrum samples and 60 milk samples) were collected from all active mammary glands. Individual fractions of total protein were separated by means of electrophoresis on polyacrylamide gel in the presence of sodium dodecyl sulphate (SDS). The piglets’ body weights average daily gains and mortality were checked consecutively after 24 hours after parturition and on the day 7th, 14th, and 21st of lactation. 207 piglets were examined. A highly significant correlation between the number of piglets, daily growths and protein fractions was observed. The most favourable rearing results were obtained at the highest level (III) of individual fractions. The study also proved most of the piglets are lost from the litters when the level of fractions is the lowest (I).Keywords: Sows, milk, protein fractions, Złotnicka White, piglet rearin