Oral melanoma (OM) occurs from activated or genetically altered epidermal melanocytes. There is no scientific evidence that OM can be linked to physical, chemical and thermal irritation, or to other risk factors of the oral cavity. According to fi gures from various countries, OM accounts for 0.2% to 7.5% ( Japan) of all cases of melanoma of the skin and mucous membrane. The male to female ratio of OM is 2:1. About 80% of OMs are located in the mucosa of the palate and maxillary gingiva. This paper presents two cases of oral mucosal melanoma of the upper and lower lips in women aged 62 and 59 years. Diagnosis, differential diagnosis and therapy are reported.

Introduction: Basic cognitive functions such as: alertness, working memory, long term memory and perception, as well as higher levels of cognitive functions like: speech and language, decision-making and executive functions are affected by aging processes. Relations between the receptive vocabulary and cognitive functioning, and the manifestation of differences between populations of elderly people based on the primary disease is in the focus of this study. Aim: To examine receptive vocabulary and cognition of elderly people with: verified stroke, dementia, verified stroke and dementia, and without the manifested brain disease. Material and Methods: The sample consisted of 120 participants older than 65 years, living in an institution. A total of 26 variables was analyzed and classified into three groups: case history/anamnestic, receptive vocabulary assessment, and cognitive assessments. The interview with social workers, nurses and caregivers, as well as medical files were used to determine the anamnestic data. A Montreal Cognitive Assessment Scale (MoCA) was used for the assessment of cognition. In order to estimate the receptive vocabulary, Peabody Picture Vocabulary Test was used. Results: Mean raw score of receptive vocabulary is 161.58 (+–21:58 points). The best results for cognitive assessment subjects achieved on subscales of orientation, naming, serial subtraction, and delayed recall. Discriminative analysis showed the significant difference in the development of receptive vocabulary and cognitive functioning in relation to the primary disease of elderly people. The biggest difference was between subjects without manifested brain disease (centroid = 1.900) and subjects with dementia (centroid = -1754). Conclusion: There is a significant difference between elderly with stroke; dementia; stroke and dementia, and elderly people without manifested disease of the brain in the domain of receptive vocabulary and cognitive functioning. Variables of serial subtraction, standardized test results of receptive vocabulary, delayed recall, abstraction, orientation and vigilance successfully discriminate studied groups.

Aim: The aim of this study was to compare time of preparation and canal aberrations in a simulated root canals after using three different rotary systems: Endostar E5, Endostar E3 and T One File Gold. Materials and Methods: A total of 90 endodontic training blocks were used in this study and divided into three groups consisting of 30 each (n = 30). Blocks processing was performed by thirty dentists without any prior experience in rotary instrumentation techniques. In the first group blocks were prepared using Endostar E5, in second one with Endostar E3 and in third one with T One File Gold system. The preparation time was measured. The postoperative image of each block was taken by stereomicroscope and canal aberrations (ledge and instrument fracture) was recorded. Statistical analysis was done by SPSS software. Results: Instrumentation with T One File Gold system is significantly faster compared to instrumentation with Endostar E5 and Endostar E3 systems (p <0.05). There are no statistically significant differences in the type and number of procedural errors between Endostar E5, Endostar E3 and T One File Gold systems when the operators have no previous experience in rotary instrumentation techniques. Conclusion: Under the conditions of this study, the incidence of examined canal aberrations were similar for all tested systems. The preparation time was significantly shorter with single file system.

Affective computing has received substantial attention in the recent time. However, its application to personalised online cancer services is understudied. Therefore, this research primarily explores the role of emotions in predicting the preference for personalisation features, and in forming behavioural intentions in cancer website usage. Secondly, this research seeks to understand whether users of cancer websites prefer to be offered emotion-based personalisation to other options – personalised or non-personalised. Emotion-based personalisation was implemented, in several phases, on the cancer website developed for the purpose of this research. A number of controlled experiments were carried out, in which users interacted with the cancer website and evaluated its personalisation features. The findings confirm that users more likely reuse a cancer website when they are satisfied with its personalisation services and find the website usable. Moreover, both negative emotions (e.g., sadness and fear) and positive ones (e.g., interest) encourage reuse intentions. Post-use negative emotions are primarily influenced by the website’s usability, while satisfaction with personalisation and usefulness of adaptive and adaptable services intensifies positive emotions. The website is perceived usable and it induces user satisfaction when its personalisation is considered useful. The findings imply that discrete emotions (of the nine basic emotions studied here) stimulate or discourage interaction with certain website features and content. Moreover, emotions experienced at the start of website use affect the perception about the usefulness of individual features available on the website. Generally, users experiencing positive emotions are eager to explore the website and be involved in the tailoring process. The effect of negative emotions is more difficult to generalise; it depends on the specific emotion and the personalisation feature in question. Overall, negative emotions are more likely to inhibit the use or perception of website features that require providing user personal information and interests, or entail extensive engagement from the user side. With regard to the second aim, this research suggests that emotion-based personalisation on a cancer website is preferred, however not significantly over generic personalisation or no personalisation at all. Nevertheless, the findings urged for further research. The survey and interview results consistently showed that: personalisation was perceived as useful, users were satisfied with it, that the website with emotion-based personalisation had the highest usability and most users prefer that type of personalisation. Moreover, repeat visitors and long-time cancer website users, who have been directly affected by cancer, decisively desired emotion-based personalisation. Overall, this research provides multiple theoretical and practical implications for personalisation adoption on cancer websites and stimulating reuse intentions. It recommends rules for adaptation and personalisation algorithms that incorporate user emotions. Moreover, it extends the existing theory and proposes a framework for understanding the emotion- and personalisation-related factors that influence intentions to revisit and reuse a personalised cancer website.

Introduction: Characteristics of sexual behaviour of female students, which will affect fertility in adulthood, represent one of the critical parameters of reproductive health. Aim: The aim of this study was assess characteristics of sexual behavior of female students in Bosnia and Herzegovina. Materials and Methods: In a prospective study on a representative sample of 2,872 regular girls aged 19-24 years, an anonymous survey on the reproductive health of female students in Bosnia and Herzegovina from 2007 to 2009 was conducted. Results: Of the total number (N = 2872) of surveyed female students, 49.44% were sexually active. Average sexarcha age was 18.14±1.83 years, and there was statistically significant earlier sexarcha in female students in Banja Luka vs. female students of the University of Sarajevo (p<0.001), as well as in female students in Mostar vs. female students of the University of Tuzla (p<0.001). Sexually active female students in 74,4 % cases had intercourses with only one partner, and 7,7 % of them had intercourses with three or more partners. Regarding the use of contraceptive methods, 69.4% female students were using contraception at first intercourse and 66.7% of them at last intercourse. 3.5% of sexually active students (N=50) had intentional abortion. Almost half (46.9%) of surveyed female students had regular pelvic exams; nearly two-third of those (63.4%) had gynecological exams in private institutions, and 36.6% of them in public health facilitie. Only one-third (35.8%) sexually active female students in BiH stated that Pap test was performed. Conclusion: Sexual behaviour of female students in BiH is less risky than in the immediate environment, but health care quality is poor.