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Posttraumatska implantoprotetska rehabilitacija estetske zone potpuno digitalnim pristupom – prikaz slučaja
No full textRehabilitacija estetske zone jedan je od najvećih izazova u implantoprotetskoj terapiji budući da su svi detalji – od konture gingive do položaja papile – direktno vidljivi pri osmijehu i govoru, dok su pacijentova očekivanja izrazito visoka. Posttraumatski slučajevi dodatno su kompleksni jer trauma može prouzročiti gubitak bukalne kosti, kolaps mekih tkiva i destrukciju interdentalnih papila, što značajno smanjuje predvidljivost terapije i povećava rizik od recesija i estetskih komplikacija.
Prikazani su periimplantantna biologija i periimplantantni fenotip s naglaskom na stabilnost mekih i tvrdih tkiva, procjena estetskog rizika te emergence profil i EBC koncept usmjereni na postizanje biološki stabilne i estetski optimalne konture mekih tkiva. Obuhvaćeni su imedijatno opterećenje, koncepti očuvanja kosti te digitalno planiranje s CBCT analizom, digitalnim wax-upom i protetski vođenom implantacijom radi osiguravanja preciznosti terapije.
Prikazan je slučaj 30-godišnjeg pacijenta nakon prometne nezgode s frakturom oba gornja prednja inciziva, gdje je provedena implanto-protetska rehabilitacija potpuno digitalnim i navođenim putem. Integracijom EBC koncepta, digitalnog planiranja, pravilnog pozicioniranja implantata i imedijatnog protetskog oblikova- nja postignuta je harmonija mekih i tvrdih tkiva te stabilan, prirodan i dugoročno predvidljiv estetski rezultat
Pristupni režnjevi u oralnoj kirurgiji
No full textPristupni režnjevi predstavljaju temeljni dio oralnokirurških zahvata jer omogućuju adekvatan prikaz operacijskog polja. Kako bi se osigurao uspješan ishod zahvata, potrebno je odabrati odgovarajući oblik i debljinu režnja u skladu s lokalizacijom operacijskog polja, vrstom zahvata i anatomskim odnosima. Režnjevi se oblikuju incizijama pune debljine koje zahvaćaju sluznicu, submukozu i periost, nakon čega se odižu radi prikazivanja kosti te se po završetku zahvata vraćaju u početni položaj i učvršćuju šavovima. Pravilno planiranje incizije, očuvanje vaskularizacije te izbjegavanje rezova iznad koštanog defekta ključni su za smanjenje komplikacija i postizanje stabilnog cijeljenja.
U oralnoj kirurgiji najčešće se primjenjuju sulkularni, trokutasti, trapezoidni, submarginalni, semilunarni i palatinalni režnjevi. Sulkularni režanj odlikuje jednostavna izvedba i dobra vaskularizacija, ali ograničena pokretljivost, što može biti nedostatak kod opsežnijih zahvata. Trokutasti i trapezoidni režnjevi omogućuju bolju preglednost i pristup dubljim strukturama, ali su povezani s većom traumom mekih tkiva. Submarginalni režanj primjenjuje se u estetski osjetljivim područjima jer omogućuje očuvanje marginalne gingive, dok se semilunarni režanj danas rjeđe koristi zbog ograničene preglednosti i veće sklonosti stvaranju ožiljka. Palatinalni režnjevi indicirani su kada je potreban pristup s nepčane strane, primjerice kod impaktiranih očnjaka ili uklanjanja palatinalnih torusa.
Odabir odgovarajućeg režnja, uz pravilnu tehniku incizije i šivanja, presudan je za uspješan kirurški ishod, smanjenje postoperativnih komplikacija te dugoročno očuvanje mekih i tvrdih tkiva
Leveraging green HRM for environmental sustainability: the mediating role of employee engagement in hospitality
No full textPurpose – This study investigates the effects of green human resource management (GHRM)
practices on employee engagement (EE) and pro-environmental behavior (PEB), including
the mediating role of EE and the moderating role of green self-efficacy (GSE) in the EE–PEB
relationship.
Methodology/Design/Approach – Primary data were collected from 426 hotel employees.
The dataset was complete with no missing values. SPSS 25 and AMOS 24 were used for
statistical analysis.
Findings – The study asserts that GHRM practices encourage EE and PEB. Furthermore, it
suggests that GSE strengthens the link between employees’ goals and green human resource
methods. On the other side, the analysis shows that GHRM has no significant impact on
employees’ PEB. Additionally, the findings indicated a significant mediation effect of EE and
a significant moderation effect of GSE.
Originality of the research – These findings contribute to the literature by offering a contextspecific explanation for why GHRM may not directly lead to PEB in developing economies,
and by emphasizing the roles of engagement and self-efficacy in facilitating behavioral change.
This study provides practical insights for hospitality managers aiming to foster environmental
sustainability through GHRM practices that not only exist in policy but also resonate with
employees’ psychological readiness and motivation
Human chefs’ perceptions towards robot chefs
No full textPurpose – This research has been conducted for the purpose of exploring human chefs’
perceptions on robot chefs and to identify potential challenges experienced by the use of robot
chefs from a human chef perspective.
Methodology – Qualitative research methods were preferred to explore the human chefs’
perceptions towards the robot chefs. 30 chefs participated in semi-structured interviews.
Thematic analysis method was used.
Findings – Human chefs expressed their fear that robot chefs will cause unemployment. In
human chefs’ opinion, the products robot chefs produce will be of poorer quality compared
to the product delivery of human chefs. The chefs emphasize that it will cause guest
dissatisfaction. The idea of working together will cause various problems. Human chefs have
the perception that robot chefs will make the culinary profession monotonous and bring the
culinary profession to an end. The positive perspectives of human chefs towards robot chefs
are that robot chefs will reduce some costs, make things easier, speed up production, provide
standardization and increase job safety.
Originality – This study is one of the few studies examining human chefs’ perceptions of
changes in their roles and autonomy in restaurants by robot chefs and how human chefs
respond to the use of robot chefs
WEB 2.0 and tourism: A review of the literature
No full textPurpose – The tourism sector has undergone profound transformations due to digital
technologies. The shift from Web 1.0 to Web 2.0 has created an interactive environment
characterized by social networks, intermediary platforms, mobile devices, Big Data, and
Artificial Intelligence (AI). This study examines the role of these technologies in tourism,
assessing their benefits and challenges.
Methodology/Design/Approach – Through a systematic literature review, this research
analyzes the correlation between social networks, intermediary platforms, and business
performance. It highlights advantages such as increased visibility, customer loyalty, and brand
reputation while addressing the risks of dependence on third-party platforms. Additionally,
it explores the impact of Big Data and AI on personalized tourist experiences and business
process optimization.
Findings – The results show that digitalization enhances marketing strategies and destination
management. However, businesses must invest in technological infrastructure, staff training,
and data management to maximize benefits.
Originality of the research – This study provides insights for tourism enterprises and future
research, emphasizing a strategic and sustainable approach to digital innovation. By examining
both opportunities and risks, it contributes to understanding how businesses can effectively
adopt new technologies to remain competitive
The quality of life’s relationship with the destination brand loyalty and destination brand value
No full textPurpose – This study explores how perceived quality of life in a destination—specifically
environmental and social dimensions—is related to destination brand loyalty and brand value.
The local population plays a key role in shaping and sustaining a strong destination brand
through their lived experiences.
Methodology/Approach – A survey was conducted from December 2023 to February 2024
with 217 residents from two tourist destinations in Split-Dalmatia County. Destination brand
equity was assessed through brand loyalty and brand value, while quality of life was measured
via environmental and social factors. The analysis also considered demographic differences
based on gender, education level, and location.
Findings – Both environmental and social quality of life are significantly and positively related
to destination brand loyalty and brand value. Gender differences emerged with environmental
quality relating to loyalty among females more strongly than males. Educational background
and location also moderated perceptions of brand value.
Originality – Set against the backdrop of rising tourism pressure and overtourism, this study offers
new insights into how residents’ quality of life is related to destination branding. By examining
micro-locations, it emphasizes the importance of context and demographic variation in shaping
brand perception, offering a more resident-centered perspective to destination management
THE RELATIONSHIP OF MICROPLASTIC ABUNDANCE IN GREEN MUSSEL Perna viridis AND THE WATERS OF MANGKANG BEACH, SEMARANG
No full textPlastika, posebno mikroplastika, trenutno predstavlja potencijalnu prijetnju onečišćenju vode. Mikroplastika se nalazi ne samo u vodi već i u akvatičnim životinjama. Zelene dagnje Perna viridis uzgajane u obalnim vodama Mangkang Wetan mogu biti kontaminirane mikroplastikom. Cilj ovog istraživanja bilo je utvrditi količinu mikroplastike prema obliku, boji i vrsti polimera te ispitati odnos između količine mikroplastike u vodenom okolišu i zelenih dagnji P. viridis. Prikupljanje podataka provedeno je metodom slučajnog uzorkovanja kako bi se procijenila distribucija uzgoja zelenih dagnji prikupljanjem uzoraka vode i zelenih dagnji, koji su analizirani kvantitativnim metodama. Analiza podataka provedena je pomoću ANOVA i regresijske analize. Istraživanjem su identificirane 4 vrste oblika mikroplastike u vodama i 3 u zelenim dagnjama, s dominantnim fragmentnim oblicima u obje. Pronađeno je sedam boja (žuta, zelena, plava, crna, prozirna, smeđa i crvena), s dominantnom smeđom bojom. Identificirano je devet vrsta polimera (polivinil klorid, polietilen tereftalat, polipropilen, polietilen niske gustoće, polietilen visoke gustoće, najlon, celulozni acetat, polietersulfon i polistiren), s polietilen tereftalatom kao dominantnim polimerom. Količina mikroplastike u vodama i zelenim školjkama na Postaji 1 bila je 6,33 ± 0,45 čestica/litri i 4,91 ± 2,32 čestice/ind, na Postaji 2 bila je 2,33 ± 0,49 čestica/litri i 1,33 ± 0,28 čestica/ind, a na Postaji 3 bila je 4,63 ± 0,32 čestice/litri i 2,91 ± 1,18 čestica/ind. Rezultati ANOVA za količinu mikroplastike u vodama pokazali su značajnu vrijednost od 0,00 0,05. Regresijska analiza pokazala je eksponencijalni obrazac, s koeficijentom determinacije (R2) od 0,685.Plastic, especially microplastics, currently poses a potential threat to water pollution. Microplastics are found not only in water but also in aquatic biota. Green mussels Perna viridis cultivated in Mangkang Wetan coastal waters may be contaminated with microplastics. This research aimed to determine the abundance of microplastics by shape, colour, and polymer type, and to examine the relationship between the abundance of microplastics in the aquatic environment and green mussels P. viridis. Data collection was carried out using a random sampling method to assess the distribution of green mussel cultivation by collecting water samples and green mussels, which were analyzed using quantitative methods. Data analysis was performed using ANOVA and regression analysis. The research identified 4 types of microplastic forms in the waters and 3 in green mussels, with fragment forms dominant in both. Seven colours were found (yellow, green, blue, black, transparent, brown and red), with brown being the dominant colour. Nine types of polymers were identified (polyvinyl chloride, polyethylene terephthalate, polypropylene, low-density polyethylene, high-density polyethylene, nylon, cellulose acetate, polyethersulfone and polystyrene), with polyethylene terephthalate as the dominant polymer. The abundance of microplastics in the waters and green mussels at Station 1 was 6.33 ± 0.45 particles/liter and 4.91 ± 2.32 particles/ind, at Station 2 it was 2.33 ± 0.49 particles/liter and 1.33 ± 0.28 particles/ind, and at Station 3 it was 4.63 ± 0.32 particles/liter and 2.91 ± 1.18 particles/ind. The ANOVA results for microplastic abundance in the waters showed a significance value of 0.00 0.05. The regression analysis showed an exponential pattern, with a coefficient of determination (R2) of 0.685
Anti-infective macrozones: design, biological evaluation and structure-activity relationships
No full textBackground and purpose: To discover novel compounds active against sensitive and resistant bacterial strains, a series of novel azithromycin-thiosemicarbazone conjugates, the macrozones, have been synthesized and their biological activity evaluated with corresponding (quantitative) structure-activity relationship ((Q)SAR) analyses conducted. Experimental approach: A systematic variation of thiosemicarbazone side-chains and coupling at positions 4''-, 3-, and 9a of the azithromycin scaffold has resulted in a novel class of bacterial ribosome inhibitors. Key results: Compared to azithromycin, the activity of 4''-macrozones has shown the greatest improvements against efflux-resistant S. pneumoniae and S. aureus, as well as very good activity of 4'' derivatives against E. faecalis. QSAR calculations indicate that the antibacterial activity of macrozones is primarily determined by the position of the thiosemicarbazone side chain. Among the conjugated derivatives, the 4''-substituted macrozones exhibit the highest overall activity against a range of sensitive and efflux-resistant Gram-positive bacteria, as well as against Gram-negative E. coli strains, while those substituted at 9a- and 3- positions are found to be less potent. The antibacterial activity of macrozones is favourably influenced by larger fractions of their cationic and zwitterionic forms, their capacity for hydrogen bond formation, and the extension of p-electron delocalization involving the thiosemicarbazone moiety. Conclusion: The results obtained provide a sound basis for guiding further medicinal chemistry efforts toward the discovery of more potent macrolide anti-infectives, with particular emphasis on resistant bacteria that pose a serious threat to human health