Background: During the last ten years, there has been a dysplosis in the development of digital libraries, which have taken precedence over classical libraries. Objective: With this article, we want to make a kind of comparison of classic and digital libraries, with a description of the pros and cons of both, so we can easily see their advantages and disadvantages. Methods: Authors used as source published papers deposited in indexed databases like PMC, MEDLINE, HINARI, etc. regardsing to appropriate facts about classic and digital libraries in Bosnia and Herzegovina and wordwide. Results and Discussion: Libraries, even a scientific one, must have professionally trained staff and an appropriate technological infrastructure, the main component of which is the Library Information System (BIS). It is a phrase that refers to an integrated library system, which consists of online databases, digital libraries, electronic books, magazines and various multimedia formats on which information sources are stored (hard disks, CDs, USB sticks, DVDs, etc.). In the past, libraries tended to develop means or instruments that would enable access to documentary resources on the spot, i.e. in the library itself - through the catalog. Later, a lot of effort was invested in the development of an automatic version of these local tools - by creating an online catalog for accessing data about library resources from a distance, such as, for example, (www.cobiss.ba) maintained by the National and University Library in Sarajevo (www.nub.ba) with members of the Virtual Library of Bosnia and Herzegovina (ViBBIH) consortium. Thanks to information technology, libraries were able to automate their many functions such as: acquisition, loan, material processing and other work procedures that were previously performed manually. The publishing production of databases has enabled libraries to offer users, through free access or licensing, access to the most diverse contents, Conclusion: Thus, digital libraries have numerous advantages, they are organizations that offer resources for use, include professional staff that select, organize, provide intellectual access, explain, distribute, preserve the integrity and ensure the durability of collections of digital works in such a way that they are ready and economically available for use by one or more communities. However, time steps on us every day, and so does technology, and new inventions, computers, cell phones, so I believe that we should not ignore the beauty when we pick up a book and read it. The historical value of books should not be neglected, both for our sake and for the sake of future generations.

Background: Whatever is done should be systematic, meaning to have an established system of steps from the beginning to the end of the action. Systematicity is especially important in writing a scientific research paper, because the more complex is the topic, the easier it is to make an error. In order to minimize the possibility of errors, many have proposed various mechanisms of systematicity in the form of steps. Objective: The aim and topic of this article is to describe the system of steps in writing a scientific research paper from the birth of an idea, to the publication and presentation of a scientific paper, and to present a scientific research paper as accessible, suitable for work and perhaps even as enjoyment for scientists. Methods: The author used appropriate and relevant sources - books, monographs, published articles, proceedings from the scientific conferences about preparing, publishing, and printing scientific papers which are deposited in the most influential indexed databases in the fields of science editing. Results and Discussion: Scientific research work is of great importance in the development of science, and is one of the key links in the education system, it is part of the culture of the individual and the nation, it contributes to the development of the individual and the community, and it is one of the sources of knowledge. The systematicity of writing a scientific research paper can be broken down into several parts: the scientist preparation, the preparation of the material, the performance of the action, the statistical analysis and interpretation of the data obtained from the research and their final analysis and interpretation for the purposes of publication in scientific and professional journals. The scientist preparation includes the scientist's intention, with which everything begins and which is ultimately an important measure of the quality of the work. At this stage, the scientist should not be affected by the „publish or parish“ syndrome, vanity or the desire for fame, because in these cases he may resort to means of intellectual dishonesty in research and lose honor and reputation. With the view that the works are evaluated and toward the end, we must not neglect the rest of the steps in the creation of scientific research work. Through the preparation of the material, online databases are described, which are a source of important information for anyone who wants to be involved in scientific research. Conclusion: In the step of performing the action, the very act of writing a scientific research paper, its structuring and the rules to be followed when writing the paper are described. The method of publishing the work is also described, as well as guides on how to present the work so that the message sent reaches the audience. By knowing all the steps of creating a scientific research paper, it becomes tempting and accessible to write and publish quality and practically applicable papers.

In addition to the already well-known application in metal production, electroplating, electrochemical energy sources, electrochemistry is also applied in other branches of industry. Today, electrochemical technologies for the treatment of wastewater and drinking water are increasingly present. In recent years, new advanced oxidation processes based on electrochemical technology - Electrochemical advanced oxidation processes (EAOPs), have been developed for the treatment of persistent pollutants, which cannot be removed by conventional water treatments. EAOPs are based on “in situ” electrolytic formation of strong oxidants in an electrochemical reactor, able to degrade almost all organic pollutants. Despite their effectiveness in degrading different types of pollutants, the biggest challenge for EAOPs is high electricity demand to power these systems, which can have serious consequences from both an ecological and an economic point of view. The use of electricity from the distribution network to power electrochemical reactors is the biggest barrier to achieving commercial success of this technology. A possible solution to this challenge is the application of direct solar UV radiation to produce electric energy by use of a solar photovoltaic (PV) arrays for power supply of EAOPs. The aim of the research was to demonstrate the feasibility of using EAOPs directly powered by PV systems, as a sustainable system for efficient water treatment.

This paper presents new records and noteworthy data on the following taxa in SE Europe and adjacent regions: diatom alga Achnanthidium rosenstockii, bryoparasitic fungi Arrhenia retiruga and Arrhenia spathulata, saprotrophic fungi Coccomyces dentatus and Hysterobrevium mori, liverworts Lunularia cruciata and Pallavicinia lyellii, fern Salvinia natans, monocots Eleocharis carniolica and Pseudorchis albida and dicots Biscutella laevigata, Fumana arabica, Hieracium ferdinandi-coburgii, Impatiens balfourii, and Onosma pseudoarenaria subsp. fallax

Food sovereignty is the human right to healthy and culturally appropriate food produced through ecologically sound and sustainable methods, and the right of people to define their own food and agriculture systems. Food security exists when all people, at all times, have physical and economic access to sufficient, safe, and nutritious food that meets their dietary needs and food preferences for an active and healthy life. In contrast to food security, which focuses on ensuring that enough food is available, food sovereignty emphasizes control over food production and distribution by local communities. Shifting the focus from food security to food sovereignty essentially represents a reconnection between nature, food, and people. The right to seeds is at the basis of each community’s food sovereignty, what is possible to achieve only in the system of farmers’ seeds. Farmer seed systems are a critical contribution to food sovereignty and farmers’ rights. For over 10.000 years, people have freely saved, selected, exchanged, and sold seeds, using and reusing them for sowing and food production. The farmers’ seed system is defined by the long-standing continuous renewal and free distribution of seeds and knowledge among people. Seeds are gifted, shared, or traded in informal and formal markets. These seeds are more resilient to climate change, pests, and pathogens, and they also ensure a more diverse food system and a dynamic global ecosystem. Today, farmers’ rights to seeds, crucial for their survival, are seriously threatened and are in decline worldwide. These seed systems are undermined by inadequate legislation and insufficient support from governments and public research, primarily as the result of a protected seed market based fundamentally on intellectual property rights and trade agreements. Farmers’ seed systems are vital for preservation of plant genetic diversity of all agricultural crops. It is increasingly expected that global climate change, combined with other factors, will significantly alter this agricultural biodiversity. Broad efforts will be needed to help reduce the climate vulnerability of current agricultural production systems and building more resilient and adaptive agroecosystems. The farmers’ seed system and the associated traditional agricultural practices are key factors for adaptation.

A voltage-controlled pulsed current source (VCPCS) capable of generating current pulses with four different waveforms in the time domain is presented in this article. These waveforms are the following: hyperbolic waveform in time domain (HWTD), squared HWTD (SHWTD), quasi-Dirac delta function (QDDF) based on HWTD, and QDDF based on SHWTD. The QDDF is treated as a generalized function (GF) whose limit value leads to the required shape. The controllability of the shapes and frequency of the current pulses is provided by adjustment of the parameters of saw-tooth and triangle control voltages. The design of the proposed VCPCS can be implemented in a standard CMOS technology. However, it has been prototyped here first using discrete off-the-shelf components mounted on a printed circuit board with a single supply voltage of 3.3 V. Measured results confirm the predictions of the analysis performed. Specifically, the measured ratio of the largest and the smallest HWTD current is 7.6 times larger than that in the state-of-the-art, for the same supply voltage, which is of particular importance in optical quantum random number generators (OQRNGs).

The paper is concerned with hexacyclic systems (Fn) and their M¨obius counterparts (Mn). Continuing the studies in MATCH Commun. Math. Comput. Chem. 94 (2025) 477, the characteristic polynomial and the eigenvalues of the Sombor matrix of Fn and Mn, and the respective Sombor energies are determined. Upper and lower bounds for the Sombor energy in terms of the number of hexagons are also obtained.

The hexacyclic system graph Fn is the graph derived from a linear hexagonal chain Ln with n > 1 hexagons by identifying two pairs of ends of Ln. The M¨obious hexacyclic system graph Mn is the graph derived from a linear hexagonal chain Ln with n > 1 hexagons by identifying two pairs of ends of Ln with a twist. In this paper, we compute, in a closed form, the resolvent energy, the Laplacian and the signless Laplacian resolvent energy, as well as the resolvent Estrada index and the resolvent signless Estrada index of Fn and Mn. All five indices are expressed as a rational function in the number n of hexagons, defined in terms of Chebyshev polynomials of the first and the second kind. Those expressions allow for a fast numerical computation of indices and for deducing sharp bounds on their growth.

Background: The etiology of oral ulceration is multicausal with numerous predisposing factors. Studies by various authors cite Helicobacter pylori infection as a possible cause of certain oral ulcerations. Objective: The aim of the study is to prove the presence of Helicobacter pylori in the oral cavity of patients with oral ulcerations, as well as to examine the relationship between the presence of Helicobacter pylori in the oral cavity and the development of oral ulcerations. Methods: The study included regular patients at the Department and Clinic of Oral Medicine and Periodontology, Faculty of Dental Medicine, University of Sarajevo, suffering from oral ulcerations, as well as healthy patients without oral diseases. The diagnosis of oral ulceration is based on a thorough history, clinical examination, and exclusion of other oral diseases. All patients were taken anamnestic data on the existence of digestive system diseases, and by reviewing medical documentation, a previously diagnosed digestive system disease by a gastroenterologist was recorded. A cytological smear was taken in all 80 cases, in patients with ulcerative lesions a smear was taken from the lesion and in healthy subjects from the mucous membrane of the palate, cheek and tongue. Highly sensitive and specific polymerase chain reaction (PCR) was used to determine the presence of Helicobacter pylori in the oral cavity and oral lesions. Results: The results of our study showed that there is no statistically significant difference between the presence of Helicobacter pylori in the oral cavity of patients with oral ulcerations and subjects with healthy mucosa. Conclusion: Helicobacter pylori is not a risk factor for the development of oral ulcerations and can be found on the oral mucosa as a transient pathogen.

Background: Normal sleep duration is crucial for maintaining brain homeostasis. Sleep disorders in Parkinson's disease are numerous, multifactorial, and result in significant morbidity. Objective: The aim of the study was to investigate the association between gender and the duration of therapy on sleep quality in patients with Parkinson's disease. Methods: The study is prospective, and includes 40 consecutively hospitalized patients with verified Parkinson's disease. The study included subjects of both genders and all age groups. To analyze the data on the subjects, we used: medical histories, nursing documentation of patients, a questionnaire with sociodemographic data, and the Parkinson's Disease Sleep Assessment Scale. We divided all subjects into two groups: subjects who have been using therapy for up to 5 years and those who have been using therapy for more than 5 years. Results: Among subjects who have been taking medication for less than 5 years, 33.3% were female and 66.6% were male. Of the total number of respondents who have been taking therapy for more than 5 years, 36.3% are female and 63.6% are male. The duration of the therapy has a statistically significant effect on the quality of sleep in patients with Parkinson's disease (p < 0.05). The subject's gender does not have a significant independent influence on the quality of sleep in patients with Parkinson's disease (p > 0.05). The interaction of gender and length of therapy use has no significant separate effect on the quality of sleep in Parkinson's disease patients (p > 0.05). The quality of sleep is better in male and female subjects who take the therapy until the age of 5. Conclusion: The duration of therapy use has a significant impact on the quality of sleep in Parkinson's disease patients. The gender of the subject has no significant independent influence on the quality of sleep in patients with Parkinson's disease.

Background: Peripheral arterial disease (PAD) is a chronic condition of reduced blood flow through the arteries. Early detection and prevention of PAD, especially in at-risk populations, is crucial to reducing morbidity and mortality. Objective: The aim of the study was to examine the clinical feasibility of vascular ultrasound screening for early detection of PAD, as well as potential financial savings through preventive measures. Methods: The study was conducted as a prospectively designed cross-sectional study with retrospective sample analysis, in which the sample consisted of 826 patients over 60 years of age, of both sexes, divided into two groups, conducted from January 2023 to May 2024. Results: The study included 826 patients aged 60 and over, divided into two groups after ultrasound examination of the arteries (Group A with atherosclerosis /63.8%/; Group B - without atherosclerosis /36.2%/). The average age was 65.44±5.9 years, 60-65 years was 64.3%, and over 65 years was 35.7%. A statistically significant difference was recorded between the analyzed groups in terms of comorbidities and risk factors. We found that age, gender, hypertension, hyperlipidemia, diabetes, smoking and chronic obstructive disease have a significant relationship with the degree of atherosclerosis. Multivariate analysis showed that the age of the subjects, hyperlipidemia, hypertension and smoking are significant predictors of atherosclerosis. The prevalence for hemodynamically significant stenosis of ACI/ACC was 5.0%, for peripheral arteries 4.2%, the prevalence of aneurysm abdominal aorta (>3 cm) was 2.3%, and 0.5% for diameter >5 cm. Conclusion: The results show the high efficiency of ultrasound diagnostics in identifying asymptomatic patients with advanced atherosclerosis, emphasizing the need for better organization of preventive programs, which could lead to potential savings in healthcare costs through earlier detection and treatment.

The COVID-19 pandemic, caused by the SARS-CoV-2 virus, has underscored the significant role of cardiovascular risk factors in determining the severity and outcomes of the disease. Pre-existing conditions such as hypertension, diabetes, obesity, and cardiovascular diseases have emerged as key contributors to increased susceptibility to severe forms of COVID-19, influencing both short-term and long-term health outcomes. This review examines the complex interplay between these risk factors and the virus’s direct impact on the cardiovascular system. Key findings suggest that conditions like hypertension, diabetes, and obesity not only predispose individuals to more severe disease but also exacerbate complications such as myocardial injury, arrhythmias, and heart failure. Furthermore, the long-term cardiovascular effects of COVID-19, including myocarditis and pericarditis, are of growing concern, particularly in patients with pre-existing cardiovascular conditions. The virus’s ability to induce myocardial damage through mechanisms involving ACE2 receptor binding and inflammatory cytokine storms has been well-documented. The pandemic has also highlighted significant cardiovascular complications, including left and right ventricular dysfunction, myocardial injury, and elevated pulmonary arterial pressure, with the right ventricle being particularly affected due to pulmonary damage. Imaging modalities such as echocardiography and cardiac magnetic resonance have proven valuable for diagnosing myocardial injury and complications, although accessibility may be limited in routine clinical practice. Survivors of severe COVID-19, especially those with pre-existing cardiovascular conditions, face an elevated risk of major adverse cardiovascular events for up to two years post-infection. Evaluation of post-COVID patients includes ECGs, laboratory tests, echocardiography, and cardiac MRI, which provide critical insights into myocardial injury and complications. Preventive measures, including vaccination, regular monitoring of cardiovascular health, and lifestyle modifications, play a crucial role in reducing the long-term risk of cardiovascular complications. The role of vaccination in mitigating the risk of severe disease and cardiovascular complications is well-established, despite rare cases of vaccine-related myocarditis. Understanding these interactions is essential for developing targeted management strategies, improving patient outcomes in both acute and long-term COVID-19 effects, and addressing the broader challenges posed by COVID-19’s impact on cardiovascular health.

Background/Aim: The aim of this study was to conduct a comparative analysis of the oral health promotion programmes in the Balkan countries, to compare key measures and activities in the implementation of the programme, and to analyse the results achieved after the implementation of the programme. Material and Methods: Data were obtained through an electronic search of publicly available documents published in the field of dental healthcare in the Balkan countries. The search terms were: "national programme", "strategy", "action plan", "project", and "oral health". The search was conducted in English and in the native languages of the Balkan Peninsula countries. A comparative analysis of valid documents and those whose validity period has expired was carried out. Results: This study illuminates the information on preventive programmes for each country and discusses the challenges faced in the Balkans region. While countries in the Balkan Peninsula have made progress in improving the oral health of their inhabitants, the absence of national oral health promotion programmes is striking. Greater involvement of the community in activities to maintain and improve oral health is needed, as is more comprehensive dental care for vulnerable populations. Conclusions: The findings of this study may be employed to enhance oral health in the delineated regions, and to confer benefits upon the population of the region and beyond. The findings from this analysis provide valuable insights for policymakers and public health professionals aiming to strengthen oral health initiatives and ensure more equitable access to dental care across the Balkan Peninsula. This paper (Part II) describes specifics of oral health promotion programmes, dental health care, and key epidemiological indicators in each Balkan country.