1. The effect of corruption on the nexus between public health expenditure and economic growth in Sub-Saharan AfricaOmobola H. Arowolo, Sunday O. Adewara, 2026, original scientific article Abstract: Government expenditure on health is an essential factor for the growth of any economy. However, the health system in sub-Saharan Africa (SSA) has not been receiving enough attention. The direct effect of public health expenditure and corruption on economic growth, as well as the role of corruption in the relationship between public health spending and eco nomic growth in 32 sub-Saharan African countries from 2000 to 2022, is examined by this study using fixed effect and the Generalised Method of Moments (GMM) as an estimation technique. The results show that both public health expenditure and corruption negatively impact economic growth, while the joint effect of public health spending and corruption enhances economic growth in SSA. Furthermore, the findings reveal that in flation hurts economic growth whereas gross capital formation and trade openness have a positive effect on economic growth. It is recommended that the government should formulate policies that will control corrup tion and raise the level of institutional quality in the SSA region.
Keywords: GMM, health expenditure, economic growth, corruption
Published in RUP: 24.08.2026; Views: 357; Downloads: 9
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2. SIFIDE’s double impact in Portugal : boosting R&D and optimizing taxesPedro Feliciano, Cristina Isabel Branco Sá, José Luís Pereira Martins, 2026, original scientific article Abstract: Economic growth is closely linked to innovation, with R&D playing a key role in generating new knowledge, products, and processes. In Portugal, public policies support R&D through financial incentives and tax benefits. This article examines the relationship between economic growth and R&D investment from both macroeconomic and microeconomic perspectives, focusing on national outcomes and firm-level performance, emphasizing the role of tax incentives in private R&D. Using a linear regression model, we find that innovation-intensive firms investing in R&D exhibit higher levels of tax planning, partly reflecting the direct effect of R&D tax incentives (SIFIDE), and potentially linked to more accurate tax management practices. Our findings align with international evidence while addressing a gap in the Portuguese context. The findings provide insights for policymakers and business leaders, emphasizing the need to monitor private R&D investments supported by SIFIDE and assess their real economic im pact, given the scheme’s substantial fiscal cost.
Keywords: economic growth, tax planning, R&D, tax benefits, SIFIDE
Published in RUP: 24.08.2026; Views: 376; Downloads: 12
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3. Shaping Stability : Can the Finance-Growth Nexus Achieve It?Ahmed Mahmoudi, Mohamed Torra, 2025, original scientific article Abstract: This paper assesses the tripartite link between a country’s financial (in) stability, its level of financial development, and economic growth. Using a panel of 21 countries over the period 2001–2020 and using the IMF Financial Market Index to proxy financial development, we find (i) that financial stability varies positively with the development of the financial system, and (ii) that the relationship between financial stability and economic growth depends critically on the level of financial development of each country. These results show that in the absence of financial development, the impact of economic growth on financial (in)stability will havedifferent effects. In addition, we performed a subsample analysis by dividing the overall sample into two subsamples based on stability levels. We find that financial development enhances stability more in the more stable subsample, while growth does so in the less stable subsample.
Keywords: financial (in)stability, financial development, economic growth, financial market index, emerging and developing markets
Published in RUP: 16.01.2026; Views: 761; Downloads: 21
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4. Growth, morphology and reproductive phenology of Gelidium adriaticum (Gelidiales, Rhodophyta) from the Slovenian coast (Gulf of Trieste, northern Adriatic)Claudio Battelli, Peter Glasnović, 2025, original scientific article Abstract: The occurrence, growth, external morphology and reproductive phenology of a Gelidium adriaticum settlement from the midlittoral zone in St. Simon Bay (Slovenian coast, Gulf of Trieste, northern Adriatic Sea) were investigated. The study was based on monthly sampling conducted for one year, from January to December 2023. The studied settlement was well developed in shaded rock crevices, forming dense turfs with a very patchy and irregular distribution. It was character-ized by a slight predominance of tetrasporic thalli, with a ratio between the three reproductive stages (tetrasporic:sterile:cystocarpic) of 1.19:1.04:1.00. The mean values of the morphological characteristics studied (height and width of the thallus, width of the widest part of the thallus axis, width of the apical, middle and basal parts of the erect axes) varied between seasons and reproductive stages. In general, these values were lower in the cystocarpic thalli than those in the tetrasporic and sterile stages in all seasons.
Keywords: Gelidium adriaticum, midlittoral, growth, morphology, reproductive phenology, Slovenian coast, northern Adriatic
Published in RUP: 15.09.2025; Views: 1585; Downloads: 6
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5. The influence of bacterial inoculants and a biofertilizer on maize cultivation and the associated shift in bacteriobiota during the growing seasonKatarina Kruščić, Aleksandra Jelušić, Matjaž Hladnik, Tamara Janakiev, Jovana Anđelković, Dunja Bandelj, Ivica Dimkić, 2025, original scientific article Abstract: Maize (Zea mays L.) relies heavily on nitrogen and phosphorus inputs, typically supplied through organic and inorganic fertilizers. However, excessive agrochemical use threatens soil fertility and environmental health. Sustainable alternatives, such as poultry manure (PM) and plant growth-promoting rhizobacteria (PGPR), offer promising solutions. This study examines the effects of a phytobiotic bacterial formulation (PHY), composed of Bacillus subtilis and Microbacterium sp., applied alone and in combination with PM, on maize’s rhizosphere bacteriobiome across key growth stages. Field trials included four treatments: a control, PHY-coated seeds, PM, and combined PHY_PM. The results show that early in development, the PM-treated rhizospheres increased the abundance of beneficial genera such as Sphingomonas, Microvirga, and Streptomyces, though levels declined in later stages. The PHY_PM-treated roots in the seedling phase showed a reduced abundance of taxa like Chryseobacterium, Pedobacter, Phyllobacterium, Sphingobacterium, and Stenotrophomonas, but this effect did not persist. In the PM-treated roots, Flavisolibacter was significantly enriched at harvesting. Overall, beneficial bacteria improved microbial evenness, and the PHY_PM treatment promoted bacterial diversity and maize growth. A genome analysis of the PHY strains revealed plant-beneficial traits, including nutrient mobilization, stress resilience, and biocontrol potential. This study highlights the complementarity of PM and PGPR, showing how their integration reshapes bacteriobiome and correlates with plant parameters in sustainable agriculture.
Keywords: maize, plant growth-promoting rhizobacteria (PGPR), poultry manure, microbiome, biocontrol, sustainable agriculture
Published in RUP: 10.06.2025; Views: 1578; Downloads: 44
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9. Populacijska dinamika polipov uhatega klobučnjaka (Aurelia aurita s.l.) : vpogled z vidika modeliranjaSara Hočevar, 2016, master's thesis Keywords: polyps, aurelia aurita, population dynamics, polyp density, density-dependent effects, density-independent effects, modelling, carrying capacity, growth rate
Published in RUP: 19.07.2021; Views: 4351; Downloads: 47
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