Repository of the University of Dubrovnik
Not a member yet
    2307 research outputs found

    "The concept of successful aging"

    No full text
    Koncept uspješno starenja stavlja naglasak na očuvanje ili daljnje razvijanje potencijala i u starijoj dobi. Sugerira kako starost može biti razdoblje očuvanog zdravlja i vitalnosti u kojem starije osobe aktivno doprinose društvu (Achenbaum, 2001; Butler i Gleason 1985). Povijest istraživanja konstrukta uspješnog starenja obilježile su dvije paralelne tradicije: biomedicinska i psihosocijalna. Sukladno biomedicinskoj tradiciji uspješno starenje se definira kao tjelesno i mentalno zdravlje te izostanak bolesti (Rowe i Kahn, 1997). Psihosocijalni pristup (Baltes i Balter, 1990) naglašava pozitivna psihološka stanja i resurse te dobre socijalne odnose. U psihološka stanja i resurse ubrajaju se: zadovoljstvo životom, samopoštovanje, osjećaj kontrole, učinkovite strategije nošenja s gubicima, dok se dobri, tj. zadovoljavajući socijalni odnosi odnose na pozitivne socijalne interakcije i društvenu uključenost. Osim navedenih kriterija uspješnog starenja, što se obavezno mora uzeti u obzir prilikom procjene, a što se naziva: laički pristup uspješnom starenju, što u prethodna dva pravca nije uključeno. Podatci koji se dobiju istraživanjima percepcije starijih osoba o uspješnom starenju, od velike su važnosti za planiranje javnih politika u pružanju usluge starijim osobama u više segmenata (socijalna skrb, zdravstvena zaštita, organizaciji aktivnog života...), uvažavajući individualne potrebe stariji osoba s obzirom na područja u kojima borave, a što bi povećalo zadovoljstvo životom i stvorilo temelje za uspješno starenje. Cilj: Ispitati percepciju i uvjerenja starijih osoba o značajkama uspješnog starenja, tj. u kojoj mjeri ispitanici, vlastito starenje doživljavaju kao uspješno, te postoje li razlike u percepciji važnosti ispitanih obilježja uspješnog starenja. Ispitanici: U istraživanje su uključeni ispitanici oba spola, stariji od 65 godina, na području Dubrovaĉko – Neretvanske županije. Metode istraživanja i instrumenti: Za dobivanje potrebnih rezultata i podataka proveden je anketni upitnik koji se sastoji od dva dijela. U prvom dijelu ankete su obuhvaćene demografske karakteristike ispitanika, dok drugi dio ankete sadrži Skalu samoprocjene uspješnog starenja. Rezultati rada: Ne postoji međusobna povezanost uspješnog starenja s dobi, mjestom i načinom življenja te bračnim statusom. Postoji statistički značajna razlika u percepciji uspješnog starenja prema spolu, stručnoj spremi i materijalnom statusu.The concept of successful aging emphasizes the preservation or further development of potential even in old age. It suggests that old age can be a period of preserved health and vitality in which older people actively contribute to society (Achenbaum, 2001; Butler and Gleason 1985). The history of research into the construct of successful aging has been marked by two parallel traditions: biomedical and psychosocial. According to the biomedical tradition, successful aging is defined as physical and mental health and the absence of disease (Rowe and Kahn, 1997). The psychosocial approach (Baltes and Balter, 1990) emphasizes positive psychological states and resources and good social relationships. Psychological states and resources include: life satisfaction, self - esteem, sense of control, effective strategies for dealing with losses, while good, i.e. satisfactory social relations refer to positive social interactions and social inclusion. In addition to the mentioned criteria of successful aging, what must be taken into account during the assessment, which is called: the laic approach to successful aging, which is not included in the previous two directions. The data obtained from research on the perception of the elderly about successful aging are of great importance for the planning of public policies in the provision of services to the elderly in several segments (social care, health care, organization of an active life...), respecting the individual needs of the elderly with regard to to the areas where they live, which would increase life satisfaction and create the foundations for successful aging. Objective: To examine the perception and beliefs of older people about the characteristics of successful aging, i.e. to what extent the respondents perceive their own aging as successful, and whether there are differences in the perception of the importance of the examined characteristics of successful aging. Respondents: Respondents of both sexes, older than 65 years, in the area of Dubrovnik - Neretva County were included in the research. Research methods and instruments: To obtain the necessary results and data, a questionnaire consisting of two parts was conducted. Research methods and instruments: To obtain the necessary results and data, a questionnaire consisting of two parts was conducted. The first part of the survey covers the demographic characteristics of the respondents, while the second part of the survey contains the Self-Assessment Scale of Successful Aging. Results of the work: There is no correlation between successful aging with age, place and way of living, and marital status. There is a statistically significant difference in the perception of successful aging according to gender, professional training and financial status

    Managing Quality and Control in Hotels and Restaurants

    No full text
    Upravljanje kvalitetom i kontrolom predstavlja niz radnji i aktivnosti koji određuju kvalitetu i ciljeve organizacije i ostvaruju pomoć i pružaju rješenja prilikom planiranja, praćenja i poboljšavanja kvalitete i kontrole. Menadžeri u navedenom imaju veoma važnu ulogu kao i zaposleni, te ćemo u radu prikazati na koji način vršimo kontrolu i kvalitetu, te kako sa njima upravljamo. U radu je ukazano na upravljanje kvalitetom u hotelu Peristil.Quality and control management is a series of actions and activities that determine the quality and goals of an organization and achieve assistance and provide solutions in planning, monitoring and improving quality and control. Managers in the above have a very important role as well as employees, and in our work we will show how we exercise control and quality, and how we manage them. Quality management in the Peristil hotel is pointed out in the paper

    Business Decision Making in Theory And Practice

    No full text
    Poslovno odlučivanje je zahtjevan proces koji zahtijeva od donositelja odluka poznavanje mnogih aspekata odlučivanja kako bi mogli donijeti ispravnu odluku. Donošenje neispravne odluke može imati velike posljedice za cjelokupno poslovanje i njegovu budućnost. Složenost procesa odlučivanja ogleda se u različitim načinima odlučivanja koje donositelji odluke koriste za probleme različite prirode kao i u mnogim ograničenjima s kojima se donositelji odluka susreću prilikom odlučivanja. Iz tog razloga formuliran je proces donošenja odluka koji se sastoji od nekoliko faza od kojih se svaka mora temeljito provesti kako bi se donijela što ispravnija odluka. U svakodnevnom poslovanju pri odlučivanju poduzeća koriste i sustave za podršku odlučivanju koja doprinose ispravnom donošenju odluka.Business decision making is a demanding process which requires knowledge of many aspects of decision making in order to make a right decision. Making a wrong decision can have big consequences for the business in general and for its future. Complexity of the decision making process reflects in the different ways of decision making that are used to solve different types of problems as well as limits in decision making that the decision makers are faced during the process. For that reason a specific process of decision making is formed which consists of a various phases, Every phase needs to be done thorough in order to bring as better decision possible. In everyday business the companies use decision support systems which contribute to a better decision making

    Subculture of football fans in Europe: the example of Torcida Split

    No full text
    Cilj ovoga rada je prikazati supkulturu nogometnih navijača u Europi na primjeru najstarije navijačke skupine Torcide Split. Naime u radu se u uvodnim odlomcima mogu pronaći hipoteze koje su postavljene na početku istraživanja, teorijski okvire i metode samog diplomskoga rada. Također prije potpunog prelaska na temu i prikaz rituala te okvira ponašanja pripadnika Torcide mogu se pronaći pojmovi koji su odrednica rada poput kulture, supkulture i njezinog povijesnog konteksta. Nakon toga diplomski rad u potpunosti prikaziva nastanak i povijest splitske navijačke skupine, njihove početke i djelovanje u bivšoj Jugoslaviji te postepeni dolazak kroz poglavlja na današnje djelovanje i okvire ponašanja s posebnim naglaskom na hijerarhijsku strukturu, navijačke rituale i sukobe sa svojim oponentima. Isto tako u jednom od dijelova rada prikazan je sukob i antagonizam Torcide i Bad Blue Boysa kao dio navijačke scene u Hrvatskoj. U navedenom poglavlju mogu se pronaći povijesni kontekst sukoba, sukobi te primjeri kada su ove dvije navijačke skupine imala primirja. Također u radu su zastupljeni dubinski intervju s jednim od članova Torcide i anketno istraživanje mladih u Dalmaciji. U dubinskom intervju mogu se pronaći informacije i konstatacije koje navijač iznosi o ritualima, hijerarhiji i stavovima Torcide kao skupine navijača, dok se anketno istraživanje usmjerilo prema dobivanju mišljenja mladih u Dalmaciji o navijačima i njihovim sukobima. Rad završava analizom i usporedbom intervju i ankete te svojevrsnim zaključkom koji zaokružuje cijelu temu.The aim of this paper is to show the subculture of football fans in Europe, with the example of the oldest fan group, Torcida Split. Namely, in the introductory paragraphs you can find hypotheses that were set at the beginning of the research, theoretical frameworks and methods of the thesis itself. Also, before completely moving on to the topic and presentation of rituals and the framework of behavior of members of Torcida, concepts can be found that are determinants of work such as culture, subculture and its historical context. After that, the thesis fully presents the emergence and history of the Split fan group, their beginnings and activities in the former Yugoslavia, and the gradual arrival through chapters on today's activities and frameworks of behavior with special emphasis on the hierarchical structure, fan rituals and conflicts with their opponents. Also in one of the parts of the paper is shown the conflict and antagonism between Torcida and Bad Blue Boys as part of the fan scene in Croatia. This chapter contains the historical context of the conflict, conflicts and examples of when these two fan groups had truces. Also in the paper are represented in-depth interview with one of the members of Torcida and a survey of young people in Dalmatia. In an in-depth interview you can find information and statements that the fan presents about the rituals, hierarchy and attitudes of Torcida as a group of fans, while the survey was directed towards obtaining the opinion of young people in Dalmatia about the fans and their conflicts. The paper ends with an analysis and comparison of interviews and surveys and a kind of conclusion that rounds out the whole topic

    Slobodan Milosevic's propaganda as a war weapon

    No full text
    Rad prati lik i djelo Slobodana Miloševića i njegovog umjeća da upravlja javnim mnijenjem. Od njegovih samih početaka i načina na koji je došao na vlast, do biografije i ljudi iz njegova okruženja. Slobodan Milošević može se nazvati osobom koja je najviše utjecala na događaje iz devedesetih godina, na području bivše Jugoslavije. Upravljanjem svim medijima, televizijom, radiom i tiskom stvara osnovu za oružane sukobe koji će kasnije usljediti na području Hrvatske, Bosne i Hercegovine i Kosova. 1999. godine međunarodna zajednica otvara oči i uviđa novi potencijalni rat na teritoriju Kosova, humanitarnom intervencijom koja je usljedila SlobodanMilošević doveo je rat na teritorij Srbije. Za svoja djela, zbog smrti i duljine sudskog procesa nije osuđen, a posljedice njegove propagande primjetne su i danas u međunarodnim odnosima bivših zemalja Jugoslavije.Graduation thesis follows the figure of Slobodan Milošević and his ability to manage public opinion. From his very beginnings and the way he came to power, to his biography and the people around him. Slobodan Milošević can be called the person who most influenced the events of the nineties, in the territory of the former Yugoslavia. By managing all media, television, radio and the press, it creates the basis for armed conflicts that will later follow in the territory of Croatia, Bosnia and Herzegovina and Kosovo. In 1999, the international community opened its eyes and saw a new potential war on the territory of Kosovo, with the humanitarian intervention that followed Slobodan Milošević brought the war to the territory of Serbia. He was not convicted for his actions, due to his death and the length of the court process, and the consequences of his propaganda are still noticeable today in the international relations of the former Yugoslavian countries

    The Fiirm Bankruptcy Decision

    No full text
    Pravni mehanizam koji eliminira neučinkovita poduzeća je stečaj. Konkurencija kroz stečaj eliminira neefikasna poduzeća s tržišta čime se na taj način povećava razina učinkovitosti drugih poduzeća i smanjuju troškovi proizvodnje. Odluka o stečaju donosi se u trenutku kulminacije poslovnih poteškoća. Stečajni postupak provodi se zbog namirenja svih vjerovnika unovčenjem imovine dužnika i podjelom prikupljenih sredstava vjerovnicima. Prodaja imovine dužnika i namirenje vjerovnika rezultirat će prestankom postojanja stečajnog dužnika, osim u slučaju kada vjerovnici ne prihvate stečajni plan dužnika. Hrvatski stečajni zakon za cilj stečaja propisuje skupno namirenje vjerovnika prodajom imovine dužnika i podjelom prikupljenih sredstava vjerovnicima. Cilj rada odnosi se na analiziranje čimbenika stečajnog postupka u svrhu utvrđivanja postoji li eventualna mogućnost „oporavka“ poduzeća koje je u stečajnom postupku. Temeljem provedenog istraživanja s ključnim dionicima, stečajnim upraviteljima može se izvesti nekoliko zaključaka. Ključni razlog pokretanja stečajnog postupka usko je vezan za nesposobnost poduzeća za podmirenje obveza i prezaduženost koja ne omogućava sanaciju kroz stečajni postupak. Nastavak poslovanja kroz restrukturiranje moguć je u slučaju kada poduzeća imaju tržišnu poziciju te materijalne i ljudske potencijale. Niske stope restrukturiranja u stečajnim postupcima u većini slučajeva povezani su s zakašnjelim uočavanjem poteškoća i pokretanjem stečajnog postupka. Organizacijske promjene, optimalan broj zaposlenika i kvalitetan menadžment važni su čimbenici uspješnog restrukturiranja poduzeća. Oporavak poduzeća vezan je uz promjenu menadžmenta koji je poduzeće doveo u stečaj, konkretno takav menadžment ne može biti uključen u restrukturiranje. Ako se kriznom situacijom neadekvatno upravlja i ukoliko menadžment ne poduzima mjere restrukturiranja organizacija se može dovesti do stečaja. Najvažnija zadaća svakog menadžmenta u borbi s krizom je osiguranje dovoljno novca za kontinuirano poslovanje poduzeća čime sprječava nastanak najgoreg ishoda, stečaja poduzeća.The legal mechanism that eliminates inefficient companies is bankruptcy. Competition through bankruptcy eliminates inefficient companies from the market, thus increasing the level of efficiency of other companies and reducing production costs. The decision on bankruptcy is made at the culmination of business difficulties. Bankruptcy proceedings are carried out in order to satisfy all creditors by cashing in the debtor's assets and distributing the collected funds to creditors. The sale of the debtor's assets and the settlement of creditors will result in the bankruptcy debtor's termination of existence, except in the case when the creditors do not accept the debtor's bankruptcy plan. The Croatian Bankruptcy Act prescribes the collective settlement of creditors by selling the debtor's property and dividing the collected funds among the creditors for the purpose of bankruptcy. The aim of the paper is to analyze the factors of the bankruptcy procedure in order to determine whether there is a possible possibility of "recovery" of the company that is in the bankruptcy procedure. Based on the research conducted with key stakeholders, bankruptcy administrators can draw several conclusions. The key reason for initiating bankruptcy proceedings is closely related to the company's inability to meet its obligations and over-indebtedness that does not allow recovery through bankruptcy proceedings. Continuation of business through restructuring is possible in the case when companies have a market position and material and human resources. Low rates of restructuring in bankruptcy proceedings are in most cases associated with late detection of difficulties and initiation of bankruptcy proceedings. Organizational changes, optimal number of employees and quality management are important factors in successful company restructuring. The recovery of the company is related to the change of the management that brought the company into bankruptcy, specifically such management cannot be included in the restructuring. If the crisis situation is inadequately managed and if the management does not undertake restructuring measures, the organization can be led to bankruptcy. The most important task of any management in the fight against the crisis is to ensure enough money for the continuous operation of the company, thus preventing the worst outcome, the bankruptcy of the company

    Green Entrepreneurship as a Factor of Sustainability

    No full text
    Globalno zatopljenje, klimatske promjene danas su čest pojam s kojim se susrećemo, no, važno je napomenuti da se klima kroz povijest mijenjala, te će se nastaviti mijenjati u skladu s prirodnim okolnostima. Stoga, na neke promjene u prirodi ne možemo utjecati, ali na one promjene koje su rezultat ljudskog djelovanja potrebno je pronaći rješenje koje je u skladu s prirodom. Ugljikov dioksid jedan je od glavnih zagađivača u prirodi izazvan ljudskim djelovanjem, izgaranjem fosilnih goriva i biomase što rezultira povećanjem stakleničkih plinova u atmosferi. Nažalost, svakodnevno smo svjedoci ugrožavanja biotopa, pretjerani izlovi pojedinih komercijalno zanimljivih životinjskih vrsta, emisije otrovnih plinova, trovanja vode, tla, zraka i hrane, betonizacije i industrijalizacije zelenih površina, a u toj zlouporabi prirodnih dobara mnogi prirodni subjekti postaju ugroženi. A da bi se smanjio utjecaj ljudi na okoliš potrebno je postaviti ravnotežu kako bi i budući naraštaji mogli uživati u blagodatima planeta Zemlje. Održivi razvoj nije novi pojam zaštite okoliša, već je njegov cilj trojak, što bi značilo da održivi razvoj osim što u fokusu ima zaštitu okoliša ono teži i gospodarskom te socijalnom napretku. Pojmovi održivog razvoja su u isprepletenoj interakciji te funkcioniraju na način da utječu jedna na drugu. Brojne kompanije diljem svijeta promoviraju strategiju društveno odgovornog poslovanja kako bi se poboljšao ekonomski i društveni aspekti, ali i pokazuju odgovornost prema okolišu na različite načine, kao što su akcije čišćenja zaposlenika, sadnja stabala i sl., a ujedno na ovaj način investiraju u budućnost poduzeća te postaju konkurentniji na tržištu. Važnost zelene ekonomije u društvu raste jer je potrebno brinuti se o okolišu, a pri tom ne ugrožavati svjetsku ekonomiju i priljev kapitala. Zelena ekonomija je noviji pojam, a definira se kao ekonomija kojoj je cilj poboljšanje ljudske dobrobiti te društvena jednakost, a da se pri tom smanji rizik za okoliš te njegove daljnje degradacije. Pod pojmom zelene ekonomije misli se na ekološku poljoprivredu, razvoj zelene tehnologije, zelena gradnja i dizajn, gospodarenje otpadom, reciklaža, očuvanje i upravljanje vodnog gospodarstva i sl.. Prema istraživanjima se pokazalo da su potrošači spremni izdvojiti više novaca za proizvode koji imaju eko oznake tj. za one proizvode koji su ekološki prihvatljivi i koji imaju minimalna utjecaj na okoliš. Nažalost, neke organizacije nastoje iskoristiti situaciju te potrošače uvjeravaju da su njihovi ciljevi, proizvodi ili politika ekološki prihvatljive, a taj pojam se naziva greenwashing ili ekomanipulacija.Global warming, climate change is now a common term we encounter, but it is important to note that the climate has changed throughout history and will continue to change in accordance with natural circumstances. Therefore, some changes in nature cannot be affected, but those that result from human activity need to be found a solution that is in harmony with nature. Carbon dioxide is one of the main pollutants in nature caused by human activity, the combustion of fossil fuels and biomass resulting in an increase of greenhouse gases in the atmosphere. Unfortunately, every day we witness the threat of bio cannon, excessive fishing of certain commercially interesting animal species, poisonous gas emissions, poisoning of water, soil, air and food, concreting and industrialization of green areas, and in this misuse of natural resources many natural entities become endangered. In addition, to reduce the impact of humans on the environment, a balance is needed so that future generations can enjoy the benefits of planet Earth. Sustainable development is not a new concept of environmental protection, but its goal is a triple, which would mean that sustainable development, in addition to focusing on environmental protection, pursues both economic and social progress. The concepts of sustainable development are intertwined and work in a way that affects one another. Many companies around the world promote a corporate social responsibility strategy to improve economic and social aspects, but also show environmental responsibility in various ways, such as employee cleaning, tree planting, etc., and in this way invest in the future of the company and become more competitive in the market. The importance of the green economy in society is growing as environmental care is needed without jeopardising the global economy and capital inflows. Green economy is a newer term, defined as an economy aimed at improving human well-being and social equality, while reducing the risk to and further degradation of the environment. Green economy refers to ecological agriculture, development of green technology, green construction and design, waste management, recycling, preservation and management of water management, etc. Research has shown that consumers are willing to spend more money on products that have eco-labels, i.e. for those products that are environmentally friendly and that have a minimal environmental impact. Unfortunately, some organisations try to take advantage of the situation and convince consumers that their objectives, products or policies are environmentally friendly, a term called greenwashing or eco-manipulation

    Leadership Based on a Stakeholder Approach

    No full text
    Stakeholderski pristup utemeljen je na svojim općim načelima jednakosti, jedinstva i solidarnosti. Glavna vrijednost ovog pristupa je uključivanje, a zagovornici ovog pristupa ističu da je za zdravo ekonomsko poslovanje važno stvoriti pravedno društvo koje će biti kompatibilno s privatnim vlasništvom. Ovaj pristup obilježen je decentraliziranim odlukama koje se donose na tržištu. Svako stakeholdersko društvo svoje temelje mora bazirati na reciprocitetu prava i obveza koje se baziraju na ideji ekonomskog, socijalnog i političkog uključenja. Glavni cilj ovog pristupa je realizacija navedenih segmenata u procesu realizacije slobodnog, moralnog i kohezivnog društva koja se poslovanje bazira na sveopćem članstvu, visokoj razini društvene uključenosti i slobodnoj tržišnoj ekonomiji. Stakeholderski pristup ima veliku povezanost sa socijalnim poduzetništvom i društvenom odgovornošću. Dionici imaju veliku ulogu u kreiranju stakeholderskog pristupa svakog poduzeća.The stakeholder approach is based on its general principles of equality, unity and solidarity. The main value of this approach is inclusion, and proponents of this approach point out that for healthy economic business it is important to create a just society that will be compatible with private ownership. This approach is characterized by decentralized decisions made in the market. Every stakeholder society must base its foundations on the reciprocity of rights and obligations based on the idea of economic, social and political inclusion. The main goal of this approach is the realization of the mentioned segments in the process of realizing a free, moral and cohesive society, whose business is based on universal membership, a high level of social inclusion and a free market economy. The stakeholder approach has a strong connection with social entrepreneurship and social responsibility. Stakeholders play a major role in creating a stakeholder approach for every company

    Contemporary Methods of Continuous Improvement of Business Processes in Companies

    No full text
    Lean menadžment podrazumijeva upravljanje poslovnim procesima na način da se iz njih ukolne svi čimbenici koji ne donose vrijednost krajnjem proizvodu ili usluzi. Razvijen je u automobilskoj industriji, odnosno u sklopu proizvodnje poduzeća Toyota. Međutim, koncept upravljanja u kojem je naglasak stavljen na otklanjanje otpada danas je prepoznat kao učinkovit u brojnim industrijama. U sklopu lean menadžmenta razvijeni su brojni alati koji olakšavaju primjenu načela lean menadžmenta u poslovne procese. Prije implementacije lean alata u poslovne procese važno je utvrditi ključne probleme u poslovanju te identificirati lean alate koji mogu na ovom području biti najučinkovitiji. U ovom radu prikazane su osnovne značajke četiri lean alata: kaizen, just in time, 5S metodologija i kanban. Ovi alati usmjereni su na otklanjanje prepreka u poslovanju te na poboljšanje poslovnih procesa kroz njihovu implementaciju. Cilj ovog rada je objasniti ključna obilježja lean menadžmenta te prikazati neke od najčešće korištenih lean alata u teoretskom i praktičnom smislu. Rezultati ukazuju na to da lean alati mogu biti poboljšati poslovne procese i odnose ako se kontinuirano provode u poduzeću.Lean management means managing business processes in such a way as to remove from them all factors that do not bring value to the final product or service. It was developed in the automotive industry, that is, as part of the production of the Toyota company. However, a management concept that emphasizes waste elimination is now recognized as effective in many industries. As part of lean management, numerous tools have been developed that facilitate the application of lean management principles in business processes. Before implementing lean tools in business processes, it is important to determine key problems in business and identify lean tools that can be most effective in this area. This paper presents the basic features of four lean tools: kaizen, just in time, 5S methodology and kanban. These tools are aimed at removing obstacles in business and improving business processes through their implementation. The aim of this paper is to explain the key features of lean management and to present some of the most frequently used lean tools in a theoretical and practical sense. The results indicate that lean tools can improve business processes and relationships if they are continuously implemented in the company

    "Investigation of the antimicrobial potential of selected marine organisms"

    No full text
    Morski okoliš ima veliku važnost za život na Zemlji. Organizmi koji u njemu žive vitalni su za ekosustav, ali služe i kao neiscrpan izvor biološki aktivnih spojeva. Cilj ovog istraživanja bio je istražiti antimikrobni učinak ekstrahiranih tvari iz morskih organizama prikupljenih s područja Dubrovačko-neretvanske županije. Materijali koji su korišteni u istraživanju obuhvaćali su meka tkiva morskih beskralježnjaka (školjkaša, puža i priljepka od mekušaca te ježinca od bodljikaša) i bentoskih makroalga (smeđih, zelenih i crvenih alga). Ekstrakcija aktivnih tvari iz uzoraka provedena je upotrebom dva različita otapala (etilni acetat i metanol). Ekstrakti su zatim testirani na bakterijskim kulturama (Salmonella enterica, Staphylococcus aureus, Listeria monocytogenes, Enterobacter aerogenes i Escherichia coli) dobivenim od Zavoda za javno zdravstvo Dubrovačko-neretvanske Županije. Rezultati su pokazali značajan antimikrobni učinak ekstrahiranih tvari na rast bakterija. Najjače antimikrobno djelovanje zabilježeno je za ekstrakt zelene alge Entermorpha sp. koji je inhibirao rast pet od sedam bakterija, dok ekstrakt crvene alge Corallina officinalis nije imao antibakterijski učinak niti na jednu ispitivanu bakteriju. Ova istraživanja pružaju vrijedne informacije o potencijalnoj primjeni morskih organizama kao izvora prirodnih antimikrobnih spojeva. Daljnja istraživanja trebaju se fokusirati na identifikaciji i karakterizaciji aktivnih spojeva kako bi se razumio mehanizam njihovih djelovanja i potencijalno pridonijelo razvoju novih antimikrobnih terapeutika.The marine environment holds significant importance for life on Earth. Organisms living within it are vital for ecosystems and serve as an inexhaustible source of biologically active compounds. The aim of this research was to investigate the antimicrobial effect of extracted substances from marine organisms collected in the Dubrovnik-Neretva County area. The materials used in the study included soft tissues of marine invertebrates (mollusks such as clams, snails, limpets, sea urchins), and benthic macroalgae (brown, green, and red algae). Active substances were extracted from the samples using two different solvents (ethyl acetate and methanol). The extracts were then tested on bacterial cultures (Salmonella enterica, Staphylococcus aureus, Listeria monocytogenes, Enterobacter aerogenes, and Escherichia coli) obtained from the Public Health Institute of the Dubrovnik-Neretva County. The results demonstrated a significant antimicrobial effect of the extracted substances on bacterial growth. The strongest antimicrobial effect was observed for the extract of the green algae Entermorpha sp. which inhibited the growth of five out of seven bacteria, while the extract of the red algae Corallina officinalis did not show antimicrobial activity against any bacterial strain. These findings provide valuable insights into the potential application of marine organisms as a source of natural antimicrobial compounds. Further research should focus on identifying and characterizing active compounds to understand their mechanisms of action and potentially contribute to the development of new antimicrobial therapeutics

    180

    full texts

    2,307

    metadata records
    Updated in last 30 days.
    Repository of the University of Dubrovnik
    Access Repository Dashboard
    Do you manage Open Research Online? Become a CORE Member to access insider analytics, issue reports and manage access to outputs from your repository in the CORE Repository Dashboard! 👇