Student Thinkers and Advanced Research

Essential Oils: Exploring Their Antimicrobial Potential

RAREȘ - IONUȚ DRAGOMIR — Thu, 28 Nov 2024 00:00:00 +0000

Multidrug-resistant bacteria is one of the most concerning health problems all over the world. Uncontrolled use of antibiotics and antifungals drives these phenotypes. Developing new combat strategies is crucial to prevent healthcare and humanitarian crisis. Potential strategies include essential oils, antimicrobial peptides, bacteriophage therapies, and nanoparticles. These strategies could offer an optimized alternative to antibiotics, transforming virulent microorganisms into avirulent ones, without major disruption to the normal microbiota or human body homeostasis.

In this study we focused on the antimicrobial potential activity of the essential oils, that were tested using different methods against Gram-negative, Gram-positive and fungal microorganisms.

The study of the mobility and speciation of heavy metals in polluted soils from Copșa Mică, Sibiu County

FLAVIUS-PAUL DUBLEȘU, BOGDAN ȘOFARIU, PETRONELA-BIANCA (PAVEL) VECERDEA — Thu, 28 Nov 2024 00:00:00 +0000

The Copșa Mică area in Romania is heavily affected by contamination with heavy metals, particularly lead (Pb), cadmium (Cd), and zinc (Zn), due to intense industrialization. This study investigates the impact of this pollution on soil and the mobility of heavy metals. The results highlight significant contamination, surpassing permissible limits, affecting soil fertility and plant development. Additionally, the potential of red mud for remediating contaminated soil is explored. The conclusions emphasize the need for urgent remediation strategies to protect the environment and the health of local residents.

Research on bee products and their use in cosmetic

ALESSANDRA POP — Thu, 28 Nov 2024 00:00:00 +0000

In this paper, the antibacterial effect of bee products on skin microflora was investigated in order to prepare api-therapeutic formulations. Bacterial cultures were isolated on culture media and samples of propolis, honey, royal jelly, beeswax, pollen were applied, which proved their inhibatory efficacy, especially propolis, royal jellyand honey. Thus, these products have a biological value through the natural antibiotics they contain, proof that they can be used successfully in cosmetics.

Testing the antimicrobial efficiency of silver nanoparticles and Aloe vera gel

TEODORA ELENA OPRICA — Thu, 28 Nov 2024 00:00:00 +0000

This paper aims to evaluate the antimicrobial effect of solutions based on silver nanoparticles and Aloe vera gel on some pathogenic and facultative pathogenic strains. In order to highlight the bactericidal properties of these products, measurements of the inhibition zone diameter were performed for each tested strain. The results showed that the most effective antimicrobial effect is in the case of the combination between biosynthesized silver nanoparticles solution and Aloe vera gel, having the diameter of action of 15 mm on the Staphylococcus aureus strain.

Evaluation of the presence of Trichomonas vaginalis parasite, in the female population attending an Obstetrics and Gynecology office, Baia Mare

BEATRICE MIHALESCU — Thu, 28 Nov 2024 00:00:00 +0000

The identification and prevalence of Trichomonas vaginalis infection in women was pursued, through the Babeş Papanicolau test collected at a gynaecology office, Baia Mare. During the research period (2020-2023), the identification of the etiological agents detected, the prevalence of contamination, the distribution by age groups, residence and level of studies were pursued. The data were centralized in tables, using the percentage calculation method, and the results were plotted. Out of a number of 2,531 investigated patients, 39 positive were diagnosed for parasitosis 2020 (2.76%), 2021 (1.73%), 2022 (1.10%), 2023 (0.65), decrease probably due to the pandemic.

Factorii care afectează ornitofauna din orașul Baia Mare

LIVIU GABRIEL TIMARIU — Thu, 28 Nov 2024 00:00:00 +0000

Urbanizarea are impact negativ asupra ornitofaunei. În ciuda provocărilor, unele specii se adapteză lamediile urbane dar altele suferă sau chiar dispar.

Baia Mare este situată în nord-vestul României, în lungul râului Săsar (cca. 228 m. alt.) Orașul beneficiază de un climat bland, fără temperaturi excesive.

Scopul lucrării este de a oferii o imagine asupra ornitofaunei din Baia Mare. Astfel,am selectat trei spații verzi reprezentative: Parcul Municipal Regina Maria, Parcul Mara și campusul universitar CUNBM. Lucrarea inlude observații avifaunistice din perioada: octombrie 2023 - mai 2024, prin metoda puctelor fixe. Rezultatele au demonstrat ca presiunea antropica a afectat diversitatea ornitofaunei.

Contribuția terpenelor în profilul de aromă ale sortimentelor de piper

IULIA-ALEXANDRA CODREANU — Thu, 28 Nov 2024 00:00:00 +0000

Lucrarea urmărește prezentarea a cinci sortimente de piper (roz, roșu, negru, alb, verde). Clasele de piper conțin ca substante volatile aromatizante terpene (monoterpene și sesquiterpene). În lucrare sunt prezentate cei mai importanți compuși terpenici. Din punct de vedere ale metodelor de obținere,proprietăți fizico -chimice și utilizări aromatice. În lucrare se încearcă găsirea unor corelări între compuși terpenici și culoarea piperului. În finalul lucrări se trag concuzii și potențiale aplicații.

Studiul influenței thiocianatului de guanidină asupra conservării parametrilor urinari

GABRIELA ALEXANDRA BIZĂU — Thu, 28 Nov 2024 00:00:00 +0000

Această lucrare investighează efectul thiocianatului de guanidină asupra conservării parametrilor urinari în probe stocate la 25°C și 4°C, cu și fără conservant. Analizele au inclus parametri urinari standard, examinarea microscopică, și măsurarea concentrației creatininei și proteinelor urinare. Rezultatele arată că thiocianatul de guanidină conservă nivelurile parametrilor urinari, în special la 25°C, comparativ cu probele fără conservant. Thiocianatul de guanidină demonstrează astfel eficiență în conservarea probelor urinare în diverse condiții de stocare.

The chemical profile and the importance of lavender essential oils in medicine

ALINA DEMIAN — Thu, 28 Nov 2024 00:00:00 +0000

The discussion encompasses the chemical profile of lavender essential oils, medical usage of lavender essential oils, and authentication methods.