The aesthetic value of the golden ratio and rhythm of the photographs

The study analyzes the aesthetic value of rhythm of the photos as opposed to the form in which the rhythm is subjected. With the method of experimental aesthetics, the visual aesthetics experiment is conducted in which the tested quality of the different forms of proportional rhythm due to the shape and length of the interval as a part of the rhythmic matrix. The experimental part consisted of an assessment of visual quality of the 5 photos containing different variations of proportional rate. On all the photographs the rhythm is constituted of cigarettes situated on the surface of the old concrete. Spacing between cigarettes and interval length is successively reduced to accurately defined proportions. In one photograph, the relations between the neighboring intervals are in line with the ratio of the golden section. The experiment involved 32 subjects who had the task of assessing the level of the aesthetic qualities of rhythm on the Likert scale from 1 to 5 where the grades cannot be repeated. Measurement of the quality of a particular form of rhythm is defined as the arithmetic mean score of all respondents. The highest mean is given to the test image with uniform rhythm when the second place is reserved for a photograph whose rhythm is aligned with the golden section. Conducted analysis of repeated measures ANOVA showed that the obtained arithmetic means differ significantly (F = 3.430, p = 0.011) with a significance level of p 0.05)

Perception of visible tattoos on police ofcers

Percepcija tetovaža promijenila se unatrag nekoliko desetljeća pa je taj oblik ukrašavanja tijela postao popularan i među općom populacijom, a ne samo među marginalnim skupinama društva. Poruke, motivi i simbolika koju određena tetovaža može predstavljati, pa i sama njezina vidljivost, ponekad su u raskoraku s profesionalnim normama određene radne sredine. Dok se u nekim zanimanjima kodeksi vezani uz odijevanje i ukrašavanje tijela upotrebljavaju samo na neformalnoj razini, u određenim profesijama (bilo privatnih ili javnih ustanova) postoje jasno definirana pravila odijevanja, a mnoga se osvrću i na tetovaže i piercinge. Ovaj rad primarno tematizira vidljive tetovaže kod policijskih službenika i to s pravnog i društvenog aspekta. U svrhu istraživanja proučeno je pravno uređenje pitanja tetovaža u hrvatskoj policiji i policiji u Njemačkoj, Velikoj Britaniji i Sjedinjenim Američkim Državama, prezentirani su rezultati istraživanja percepcije tetovaža kod policijskih službenika u navedenim stranim državama i rezultati pilot-istraživanja o percepciji tetovaža kod policijskih službenika u Hrvatskoj.The perception of tattoos has changed over the decades, so this form of body decoration has become popular among the general population, not just marginalized groups in society. The messages, motifs and symbolism that a particular tattoo can represent, and even its visibility, are sometimes at odds with the professional norms of a particular work environment. While in some occupations dress codes and rules related to body adornment are used only on an informal level, in certain professions (in either private or public institutions) there are clearly defned dress codes, and many refer to tattoos and piercings. This paper primarily deals with tattoos in police ofcers from a legal and social aspect. For the purpose of the research, the legal regulation of the issue of tattoos in the Croatian police and the police in Germany, Great Britain and the United States was studied. Also, the paper presents results of police ofcers’ tattoos surveys in these countries and the results of a pilot research on perception of police ofcer’s tattoos in Croatia

Procjena alergija na hranu i aditive u bolesnika s angioedemom, sindromom pekućih usta, heilitisom, gingivostomatitisom, oralnim lihenoidnim reakcijama i peroralnim dermatitisom

Oral cavity and perioral area are constantly exposed to a variety of antigens, including food and additives, which have a potential role in the development of different oral mucosal and perioral cutaneous diseases since they can cause hypersensitivity reactions. Oral and perioral diseases mainly include angioedema, burning mouth syndrome, cheilitis, gingivostomatitis, oral lichenoid reactions, and perioral dermatitis. Previous studies were focused on delayed-type oral allergies by performing patch testing but did not include tests for immediate-type allergic reactions. Therefore, the objective of this study was to determine common nutritive and additive allergens in the prevalent oral and perioral diseases by using skin prick tests. Our study evaluated 230 participants, i.e. 180 patients with oral/perioral diseases (angioedema, burning mouth syndrome, cheilitis, gingivostomatitis, oral lichenoid reactions, and perioral dermatitis), and 50 healthy control subjects. The results of skin prick tests showed that immediate-type allergic reactions to food and additives were mostly seen in patients with burning mouth syndrome (40%) and cheilitis (33.3%), whereas allergies were least frequently observed in perioral dermatitis (10%) and gingivostomatitis (20%). Fruits, mushrooms, and vegetables were the most frequent causes of nutritive allergies in oral and perioral diseases. The most commonly identified additive allergens were glutaraldehyde, citric acid, and sodium glutamate. Study results suggest the possible association with nutritive and additive allergies be considered in cases of persistent oral mucosal or perioral skin disease accompanied by respective medical history.Usna šupljina i perioralna regija izložene su različitim antigenima, osobito hrani i aditivima, koji imaju potencijalnu ulogu u razvoju različitih bolesti oralne sluznice i perioralne kože s obzirom na to da mogu potaknuti reakcije preosjetljivosti. Oralne i perioralne bolesti najčešće se manifestiraju kao angioedem, sindrom pekućih usta, heilitis, gingivostomatitis,oralne lihenoidne reakcije ili perioralni dermatitis. Dosadašnje studije usmjerile su se na istraživanje kasne alergijske preosjetljivosti kod bolesti oralne sluznice koristeći samo epikutane (patch) testove. Stoga je cilj našeg istraživanja bio odrediti najčešće nutritivne i aditivne alergene u oralnim i perioralnim bolestima primjenom kožnog ubodnog (prick) testa. U istraživanje je bilo uključeno ukupno 230 ispitanika, tj. 180 bolesnika s oralnim/perioralnim bolestima (angioedem, sindrom pekućih usta, heilitis, gingivostomatitis, oralne lihenoidne reakcije i perioralni dermatitis) i 50 zdravih ispitanika. Rezultati kožnih ubodnih testova pokazali su da su alergijske reakcije rane preosjetljivosti na hranu i aditive najčešće uočene u bolesnika sa sindromom pekućih usta (40%) i heilitisom (33,3%), dok su najrjeđe opažene u bolesnika s gingivostomatitisom (20%) i perioralnim dermatitisom (10%). Najučestaliji uzrok nutritivnih alergijskih reakcija u oralnim i perioralnim bolestima bilo je različito voće, gljive i povrće, a najčešće identificirani aditivni alergeni bili su glutaraldehid, limunska kiselina i natrijev glutamat. Rezultati našeg istraživanja upućuju na to da kod ustrajnih bolesti oralne sluznice ili perioralne kože te značajnih povezanih anamnestičkih podataka treba razmotriti moguću povezanost s nutritivnim i aditivnim alergijama

Promjene na sluznici usne šupljine kod bolesnika s lihen planusom

Forty patients with lichen planus admitted to University Department of Dermatology and Venereology, Sestre milosrdnice University Hospital in Zagreb during the 2004-2006 period were assigned to this retrospective study. In these 40 patients (27 female and 13 male), lichen planus was diagnosed on the basis of clinical presentation, laboratory findings and histopathologic analysis. The results obtained indicated an increased prevalence of lichen planus in middle-aged patients (40% of patients were aged 40-60), with a significant female predominance (67.5% vs. 32.5%). The majority of patients with lichen planus presented with both cutaneous and oral lesions (62.5%), one third of cases had only cutaneous lesions (35%), and only one patient had isolated oral lesions (2.5%). The initial symptoms in patients with lichen planus usually manifested on the skin (82.5%), in oral cavity (5%), or both simultaneously. Oral lesions usually developed on buccal mucosa (88.5%) in the form of Wickham.s striae. All patients were administered topical therapy (corticosteroids, keratolytics), while 55% of patients were given both systemic and topical therapy (corticosteroids, retinoids). Phototherapy was used in 27.5% of patients. The management of patients with oral lichen planus lesions requires multidisciplinary approach including dermatologists and oral pathologists, general practitioners, as well as ENT specialists, internal medicine specialists, and others.Ovo retrospektivno istraživanje obuhvatilo je bolesnike hospitalizirane zbog lihen planusa u Klinici za dermatovenerologiju KB "Sestre milosrdnice" u Zagrebu u razdoblju od siječnja 2004. do kraja 2006. godine. Obuhvaćeno je 40 bolesnika (27 žena i 13 muškaraca) koji su bolovali od lihen planusa, a dijagnoza je postavljena na temelju kliničko-laboratorijskih pretraga te patohistološkog nalaza. Prema našim rezultatima lihen se najčešće javljao u dobi od 40. do 60. godine (45%), češće kod žena (67,5%) nego kod muškaraca (32,5%). Većina bolesnika je istodobno imala promjene na koži i sluznici (62,5%), kod oko trećine bolesnika promjene su bile isključivo na koži (35%), dok je samo jedan bolesnik imao promjene isključivo na sluznici usne šupljine (2,5%). Bolest je najčešće započinjala na koži (82,5%), zatim na sluznici usne šupljine (5%), dok je istodobni početak pojave promjena na sluznici usne šupljine i koži zabilježen u 12,5% bolesnika. Promjene usne šupljine najčešće su bile lokalizirane na bukalnoj sluznici (88,5%), uglavnom u obliku Wickhamovih strija (65,4%). Kod svih bolesnika se primijenila lokalna terapija (kortikosteroidi, keratolitici), dok je 55% bolesnika uz lokalnu primilo i sistemsku terapiju (kortikosteroidi, retinoidi). Kod 27,5% bolesnika je provedena fototerapija. S obzirom na to da se promjene kod lihen planusa često javljaju na sluznici usne šupljine potreban je multidisciplinski pristup koji uključuje suradnju specijalista dermatovenerologa, oralnog patologa, liječnika obiteljske medicine, ORL, internista i drugih

Intraspecies characterization of bacteria via evolutionary modeling of protein domains

The ability to detect and characterize bacteria within a biological sample is crucial for the monitoring of infections and epidemics, as well as for the study of human health and its relationship with commensal microorganisms. To this aim, a commonly used technique is the 16S rRNA gene targeted sequencing. PCR-amplified 16S sequences derived from the sample of interest are usually clustered into the so-called Operational Taxonomic Units (OTUs) based on pairwise similarities. Then, representative OTU sequences are compared with reference (human-made) databases to derive their phylogeny and taxonomic classification. Here, we propose a new reference-free approach to define the phylogenetic distance between bacteria based on protein domains, which are the evolving units of proteins. We extract the protein domain profiles of 3368 bacterial genomes and we use an ecological approach to model their Relative Species Abundance distribution. Based on the model parameters, we then derive a new measurement of phylogenetic distance. Finally, we show that such model-based distance is capable of detecting differences between bacteria in cases in which the 16S rRNA-based method fails, providing a possibly complementary approach , which is particularly promising for the analysis of bacterial populations measured by shotgun sequencing

Synthetic vs natural scaffolds for human limbal stem cells

Aim To investigate the impact of synthetic electrospun polyurethane (PU) and polycaprolactone (PCL) nanoscaffolds, before and after hydrolytic surface modification, on viability and differentiation of cultured human eye epithelial cells, in comparison with natural scaffolds: fibrin and human amniotic membrane. Methods Human placenta was taken at elective cesarean delivery. Fibrin scaffolds were prepared from commercial fibrin glue kits. Nanoscaffolds were fabricated by electrospinning. Limbal cells were isolated from surpluses of human cadaveric cornea and seeded on feeder 3T3 cells. The scaffolds used for viability testing and immunofluorescence analysis were amniotic membrane, fibrin, PU, and PCL nanoscaffolds, with or without prior NaOH treatment. Results Scanning electron microscope photographs of all tested scaffolds showed good colony spreading of seeded limbal cells. There was a significant difference in viability performance between cells with highest viability cultured on tissue culture plastic and cells cultured on all other scaffolds. On the other hand, electrospun PU, PCL, and electrospun PCL treated with NaOH had more than 80% of limbal cells positive for stem cell marker p63 compared to only 27%of p63 positive cells on fibrin. Conclusion Natural scaffolds, fibrin and amniotic membrane, showed better cell viability than electrospun scaffolds. On the contrary, high percentages of p63 positive cells obtained on these scaffolds still makes them good candidates for efficient delivery systems for therapeutic purpose

2015/16 seasonal vaccine effectiveness against hospitalisation with influenza a(H1N1)pdm09 and B among elderly people in Europe: Results from the I-MOVE+ project

We conducted a multicentre test-negative caseâ\u80\u93control study in 27 hospitals of 11 European countries to measure 2015/16 influenza vaccine effectiveness (IVE) against hospitalised influenza A(H1N1)pdm09 and B among people aged â\u89¥ 65 years. Patients swabbed within 7 days after onset of symptoms compatible with severe acute respiratory infection were included. Information on demographics, vaccination and underlying conditions was collected. Using logistic regression, we measured IVE adjusted for potential confounders. We included 355 influenza A(H1N1)pdm09 cases, 110 influenza B cases, and 1,274 controls. Adjusted IVE against influenza A(H1N1)pdm09 was 42% (95% confidence interval (CI): 22 to 57). It was 59% (95% CI: 23 to 78), 48% (95% CI: 5 to 71), 43% (95% CI: 8 to 65) and 39% (95% CI: 7 to 60) in patients with diabetes mellitus, cancer, lung and heart disease, respectively. Adjusted IVE against influenza B was 52% (95% CI: 24 to 70). It was 62% (95% CI: 5 to 85), 60% (95% CI: 18 to 80) and 36% (95% CI: -23 to 67) in patients with diabetes mellitus, lung and heart disease, respectively. 2015/16 IVE estimates against hospitalised influenza in elderly people was moderate against influenza A(H1N1)pdm09 and B, including among those with diabetes mellitus, cancer, lung or heart diseases

Utjecaj organizacijske kulture na zadovoljstvo zaposlenika u odabranom poduzeću

Predmet istraživanja ovog završnog rada je organizacijska kultura kao nezaobilazno sredstvo razvoja i uspješnosti poslovanja na razini svakog pojedinca, a samim time i poduzeća u cjelini. U radu su definirani i objašnjeni pojmovi vezani uz organizacijsku kulturu s naglaskom na važnost njezinog istraživanja i analiziranja, razvoja i mijenjanja uvjetovanih vanjskim ili unutarnjim faktorima organizacije. Definirano je i zadovoljstvo zaposlenika, čimbenici koji utječu na zadovoljstvo poslom te kako ono utječe na ponašanje zaposlenika. Teorijski dio rada se temeljio na sekundarnom istraživanju, odnosno na prikupljanju stručne literature te uspoređivanju i analiziranju djela iste tematike različitih autora. Empirijsko istraživanje je provedeno putem anketnog upitnika među zaposlenicima Hrvatske radiotelevizije s ciljem utvrđivanja postojeće organizacijske kulture (dinamične/statične) i dokazivanja njezinog utjecaja na zadovoljstvo zaposlenika, za koje je dokazano da je povezano s njihovom učinkovitosti. Iz toga se može izvesti zaključak da organizacijska kultura utječe na učinkovitost zaposlenika i zato je njeno proučavanje važno za svaku organizaciju. Analizom anketnog upitnika, utvrđeno je kako na Hrvatskoj radioteleviziji prevladava statična birokratska kultura. Taj rezultat ne iznenađuje u smislu raščlanjenosti na samostalne jedinice i mnoštva pisanih pravila i procedura za reguliranje ponašanja zaposlenika, no zabrinjavajući je odnos prema ljudima, ne uvažavanje njihovih ideja i ne poticanje njihovog razvoja. Takav odnos prema zaposlenicima negativno utječe na njihove performanse i predanost radu te se preporučuje mijenjanje organizacijske kulture u tom segmentu. Ovaj rad može doprinijeti oblikovanju organizacijske kulture ili korekciji postojeće kulture neke organizacije te dovesti do donošenja i provođenja novih odluka koje mogu rezultirati poboljšanjem međuljudskih odnosa i dovesti do većeg zadovoljstva zaposlenika, a time i do povećanja učinkovitosti organizacije.The subject of the research of this final work is the organizational culture as an inevitable means of development and business success at the level of each individual, and thus of the enterprise as a whole. In this paper, the concepts related to organizational culture are defined and explained, with an emphasis on the importance of its research and analysis, development and change conditioned by external or internal factors of the organization. Employee satisfaction is also defined, factors affecting employee satisfaction and how it affects employee behavior. The theoretical part of the work was based on secondary research, ie on collecting professional literature and comparing and analyzing works of the same theme of different authors. Empirical research was conducted through a questionnaire survey among employees of the Croatian Radio Television with the aim of identifying the existing organizational culture (dynamic / static) and proving its impact on employee satisfaction, which has been shown to be related to their effectiveness. From this it can be concluded that the organizational culture affects the efficiency of the employees and therefore its study is important for each organization. Analyzing the survey questionnaire, it was established that static bureaucratic culture prevails on Croatian radio television. This result is not surprising in terms of separation into independent units and a multitude of written policies and procedures to regulate employee behavior, but it is worrying about people's attitude, not taking their ideas into account and not encouraging their development. Such a relationship with employees negatively affects their performance and dedication to work, and it is recommended to change the organizational culture in that segment. This work can contribute to shaping an organizational culture or correcting an existing culture of an organization and leading to the adoption and implementation of new decisions that can result in improved interpersonal relationships and lead to greater employee satisfaction, and thus to the efficiency of the organization

Matrix differential calculus

Rad ne sadrži sažetak

Health care of patients with acute myocardial infarction

Srčani udar ili akutni infarkt miokarda (AIM) smatra se bolešću kardiovaskularnog sustava. Nastaje potpunim prekidom protoka krvi kroz koronarnu arteriju. Najčešće nastaje iznenada, zbog začepljenja koronarne arterije ili njezinih ogranaka krvnim ugruškom koji se postupno stvara na površini krvne žile oštećene aterosklerozom. Aterosklerotski plakovi sužavaju promjer krvne žile, stvarajući podlogu na kojoj se lako može stvoriti krvni ugrušak i začepiti lumen (šupljinu) koronarne arterije. Glavni simptom AIM je bol u prsima. Bol je vrlo intenzivna, ima karakter pritiska, žarenja, peckanja u prsima, stezanja, lokalizirana je iza prsne kosti ili u žličici, može se širiti u lijevo rame i lijevu ruku te u oba ramena i obje ruke, može se pojaviti u leđima, rjeđe u vratu ili donjoj čeljusti. Dijagnoza AIM postavlja se na temelju anamneze, promjena na EKG-u i laboratorijskih nalaza. U završnom radu će biti prikazani faktori rizika AIM, klinička slika, dijagnostika i liječenje AIM, sestrinske dijagnoze i intervencije za bolesnika oboljelog od AIM te sestrinske vještine i znanja kardiopulmonarne reanimacije. Sestrinska skrb je sastavni dio procesa liječenja, stoga je važno da medicinska sestra koja radi s bolesnicima koji boluju od AIM posjeduje specifična znanja i vještina. Nadalje, sestrinske intervencije usmjerene su na oporavak bolesnika, prevenciju i uočavanje mogućih komplikacija bolesti, primjenu lijekova koji sprječavaju zgrušavanje krvi, edukaciju bolesnika, usvajanje pozitivnog zdravstvenog ponašanja i pripremu za otpust iz bolnice.Heart attack or acute myocardial infarction (AMI) is considered a disease of the cardiovascular system. It is caused by complete interruption of blood flow through the coronary artery. Most often it occurs abruptly, due to blocked coronary arteries or its branches by a blood clot that gradually forms on the surface of the blood vessel damaged by atherosclerosis. Atherosclerotic plaques narrow the diameter of the blood vessel, creating a surface on which a blood clot is easily formed and can clog the lumen (cavity) of the coronary artery. The main symptom of AIM is chest pain. The pain is very intense, has a character of pressure, annealing, chest burning, tightness, is localized behind the sternum or pectoral spoon, can spread into the left shoulder and arm and into both shoulders and both arms, can can occur in the back, less often in the neck or lower jaw. AIM diagnosis is made on the basis of medical history, changes in EKG and lab results. The final paper will present risk factors for AIM, clinical picture diagnostics and the treatment of AIM, nursing diagnoses and interventions for an AIM patient and nursing skills and knowledge of cardiopulmonary resuscitation. Nursing care is an integral part of the treatment process, therefore it is important that the nurse that works with AIM patients has specific knowledge and skills. Furthermore, nursing interventions are focused on patient recovery, prevention and detection of the possible complications of the disease, administration of drugs that stop the blood from clotting, education of patients, acquisition of positive medical behavior and preparation for medical discharge