Compact Star Clusters in the M31 Disk

We have carried out a survey of compact star clusters (apparent size <3 arcsec) in the southwest part of the M31 galaxy, based on the high-resolution Suprime-Cam images (17.5 arcmin x 28.5 arcmin), covering ~15% of the deprojected galaxy disk area. The UBVRI photometry of 285 cluster candidates (V < 20.5 mag) was performed using frames of the Local Group Galaxies Survey. The final sample, containing 238 high probability star cluster candidates (typical half-light radius r_h ~ 1.5 pc), was selected by specifying a lower limit of r_h > 0.15 arcsec (>0.6 pc). We derived cluster parameters based on the photometric data and multiband images by employing simple stellar population models. The clusters have a wide range of ages from ~5 Myr (young objects associated with 24 um and/or Ha emission) to ~10 Gyr (globular cluster candidates), and possess mass in a range of 3.0 < log(m/M_sol) < 4.3 peaking at m ~ 4000 M_sol. Typical age of these intermediate-mass clusters is in the range of 30 Myr < t < 3 Gyr, with a prominent peak at ~70 Myr. These findings suggest a rich intermediate-mass star cluster population in M31, which appears to be scarce in the Milky Way galaxy.Comment: 16 pages, 8 figures, 1 table, accepted for publication in Ap

Comparison of Microbiological and Clinical Findings at Peri-implant and Periodontal Tissues. A systematic review of literature

Relevance of the problem and aim of the work: with the rapid growth of implants use, the number of biological complications increases too. It is important to select a suitable preventive and treatment protocol in order to reduce the risk of these complications. The treatment of peri-implant disease is mainly based on scientific evidence of periodontal disease treatment or empirical treatment of clinical signs. It is important to find out the similarities and differences between the microbiological and clinical signs in the peri-implant and periodontal tissues in order to select the most effective prevention and treatment for the longevity of the implants. The aim of this study is to do the systemic analysis of reviewed articles and compare microbiological and clinical signs in peri-implant and periodontal tissues. Material and methods: the search of articles in PubMed (Medline), ScienceDirect and Cochrane Library databases was performed from September 2018 until the end of February 2019. Including of articles was based on PRISMA statements. Results: A total of 10 in vivo studies were included in this systematic review. The prevalence of P. gingivalis, T. denticola and T. forsythia in healthy and inflammatory peri-implant and periodontal tissues was investigated in the included studies. Two studies explored only peri-implant tissues and one studied only periodontal tissues. Seven of ten studies also compared the clinical signs of the study groups. Conclusions: There was no statistically significant difference in the prevalence of “red complex” bacteria in healthy peri-implant and periodontal tissues. Comparing the prevalence of P. gingivalis in the inflamed peri-implant and periodontal tissues there was no statistically significant difference too but there is no consensus on the difference between the prevalence rates of the bacteria T. denticola and T. forsythia between the inflamed groups. Differences of the clinical signs between healthy groups were not unanimous. Comparing the differences of the clinical signs in inflamed peri-implant and periodontal tissues groups no statistically significant difference was occur

Activity Problems of People with Guillain – Barre Syndrome

Relevance of the topic. Guillain – Barre syndrome is one of the most common causes of neuromuscular paralysis worldwide (Byers, 2021). Many individuals continue to experience residual symptoms of the disease, which affect the quality of life, work, daily life and social life (Laparidou et al., 2021). Aim of the paper. To identify the activity problems of people with Guillain – Barre syndrome. Objectives of the study. 1. To identify the difficulties people face in their daily activities. 2. To analyse the problems individuals face in their working life. 3. Identify how individuals leisure time is disrupted with Guillain – Barre syndrome. Methodology. A qualitative research method was used. Semi-structured interviews with pre-formulated questions were used to collect data. Four people participated in the study. Results. The analysis of the information received revealed 5 categories, which were divided into subcategories: 1. The onset of symptoms (subcategories: leg muscle weakness, arm muscle weakness, sensory disturbances, facial muscle weakness, respiratory disturbances). 2. The disease continues (subcategories: fatigue, pain, muscle weakness, balance problems, sensory problems, “I am learning all over again”, fine motor problems, “I have adapted to make it easier”) 3. Activities of daily living (subcategories: dressing / undressing, bathing, eating, and cooking). 4. Work / productive activities (subcategories: change in work, reduction in the amount of work). 5. Leisure time (subcategories: “cannot do what I like”, “either do not drive or adapt”, limited physical activity).Temos aktualumas. Guillain – Barre sindromas yra viena iš labiausiai paplitusių neuroraumeninio paralyžiaus priežasčių visame pasaulyje (Byers, 2021). Daugelis asmenų ir toliau jaučia liekamuosius ligos simptomus, kurie turi įtakos gyvenimo kokybei, darbui, kasdieniam ir socialiniam gyvenimui (Laparidou ir kt.,2021). Darbo tikslas. Atskleisti asmenų, sergančių Guillain – Barre sindromu, veiklos problemas. Tyrimo uždaviniai. 1. Atskleisti su kokiais sunkumais asmenys susiduria kasdienėje veikloje. 2. Išanalizuoti su kokiomis problemomis asmenys susiduria darbinėje veikloje. 3. Nustatyti kaip sutrikdomas asmenų laisvalaikis, sergant Guillain – Barre sindromu. Metodika. Buvo taikytas kokybinis tyrimo metodas. Duomenims rinkti pasitelktas pusiau struktūrizuotas interviu su iš anksto suformuluotais klausimais. Tyrime dalyvavo 4 asmenys. Rezultatai. Atlikus gautos informacijos analizę, išryškėjo 5 kategorijos, kurios buvo suskirstytos į subkategorijas: 1. Ligos simptomų pradžia (subkategorijos: kojų raumenų silpnumas, rankų raumenų silpnumas, jutimų sutrikimai, veido raumenų silpnumas, kvėpavimo sistemos sutrikimai). 2. Liga tęsiasi toliau (subkategorijos: nuovargis, skausmas, raumenų silpnumas, pusiausvyros sutrikimai, jutimų sutrikimai, „mokausi iš naujo“, smulkiosios motorikos sutrikimai, „prisitaikiau, kad būtų lengviau“). 3. Kasdienė veikla (subkategorijos: apsirengimas / nusirengimas, maudymasis, valgymas ir maisto gamyba). 4. Darbinė / produktyvioji veikla (subkategorijos: darbo pobūdžio kaita, darbo apimties sumažinimas). 5. Laisvalaikis (subkategorijos: „negaliu daryti, tai ką mėgstu“, „arba nevairuoju, arba prisitaikau“, ribojamas fizinis aktyvumas)