Circadian variation of onset of acute myocardial infarction (AMI) has been noted in many studies, but there are no data about subgroups of patients with previous coronary artery bypass grafting (CABG). Because of abnormalities in the circadian rhythm of autonomic tone after surgery, it was very interesting to analyze the circadian patterns in the onset of symptoms of AMI in various subgroups of 1784 patients with previous CABG. As in the other studies, a peak occurred in the morning hours with 26.3% of the patients, but there was a second nearly equal, but higher, peak (26.4%) in the evening hours. The subgroups with specific clinical characteristics exhibited different patterns that determined these peaks in all populations. In patients older than 70 years of age, in both sexes, in smokers, diabetics, in patients with hypertension, in those undergoing beta-blocker therapy, and in patients without previous angina, two nearly equal peaks were observed, with higher evening peaks, except in those patients with hypertension and without angina. Only one peak in the evening hours was observed in a subgroup of patients with previous congestive heart failure (CHF) and non-STEMI. The subgroup of patients with previous angina and previous AMI exhibited no discernible peaks. The distribution of time of onset within the four intervals was not uniform, and the difference was statistically significant only for patients undergoing beta-blocker therapy at time of onset (p = 0.0013), nonsmokers (p = 0.0283), and patients with non-STEMI (p = 0.0412). It is well known that patients with AMI have a dominant morning peak of circadian variation of onset. However, analyzing a different subgroup of patients with AMI after previous CABG, it was found that some subgroups had two peaks of onset, but a higher evening peak (patients older than 70 years of age, smokers, diabetics, and a group of patients who were taking beta-blocker therapy). This subgroup of patients, together with the subgroups of patients with a dominant evening peak (patients with CHF and those with non-STEMI) and with patients with no peak (patients with previous angina and previous AMI), probably appear to modify characteristic circadian variation of infarction onset, expressing a higher evening peak, respectively to the previous CABG, with adverse consequences for central nervous system functioning.

We complete the details of a theory outlined by Kontsevich and Soibelman that asso- ciates to a semi-algebraic set a certain graded commutative differential algebra of "semi-algebraic differential forms" in a functorial way. This algebra encodes the real homotopy type of the semi- algebraic set in the spirit of the DeRham algebra of differential forms on a smooth manifold. Its development is needed for Kontsevich's proof of the formality of the little cubes operad.

UDK 630*52(497.6)(083.133) Ovaj manual opisuje vrste podataka i načine njihovog snimanja/mjerenja na terenu, kao i načine evidentiranja snimljenih veličina, odnosno obilježja. Sastavni je dio Metodike druge državne inventure šuma u BiH. Manual je namijenjen za obuku terenskih sekcija koje će vršiti taksaciona snimanja na terenu, kao kratki podsjetnik koji e koristiti tokom snimanja. Za potpuno razumijevanje metodike neophodno je proučiti cjelokupni materijal. Opisi pojedinih aktivnosti taksacionih snimanja na terenu, tj. naslovi pojedinih dijelova ovog manuala, usklađeni su sa obilježavanjem pojedinih polja u obrascima (formularima) za unos snimljenih podataka. To će olakšati razumijevanje pojedinih detalja u obrascima. Radni timovi imaju obavezu da sa sobom nose ovaj manual tokom rada na terenu. Nemaju pravo mijenjati bilo koje dijelove ili postupati suprotno objašnjenim postupcima rada tokom taksacionih snimanja. Šef sekcije je odgovoran za korektnu primjenu metodike prilikom taksacionih snimanja. Prije polaska na teren vođa snimačke grupe planira terenski rad pomoću karata, provjerava opasnost pristupa traktu zbog mina i priprema komplet opreme (mjerne instrumente, obrasce za snimanje, željezne markere i drugo) .

The paper presents design and implementation of a portable modular wavemaker system for producing regular and irregular waves in laboratory basins and fl umes. The system was built for the purpose of testing the impact of the sea waves on ships and coastal facilities. It is suitable for generation of all tipes regular and irregular surface waves. Modular system structure maintains high degree of fl exibility and reusability. Finally, the testing process on the physical model of Split harbour is described, and the currently obtained results are shown.

UDK 630*52(497.6) Prva inventura šuma na velikim površinama u BiH je provedena prije 40 godina, u periodu od 1964. do 1968. Druga državna inventura šuma je započela u 2006. godini, sa planom da se završi krajem 2009. godine. Šumskogospodarska oblast „Unska” na sjeverozapadu BiH je premjerena u 2006. godini, u prvoj fazi inventure šuma. Ovaj rad sadrži skraćeno pojašnjenje inventurnih koncepata i podatke o glavnim taksacionim elementima za oblast Unsku, po glavnim kategorijama šuma i šumskih zemljišta, površina, zaliha i zapreminski prirast iz dvije državne inveture šuma koji su poređeni i prezentirani u ovom radu. Razlike u prikazanim podacima su značajne. Možemo sa sigurnošću reći da su se desile velike promjene tokom 40- godišnjeg perioda, u ukupnoj površini šuma i u stukturi površina po glavnim kategorijama šuma. Površine šuma su se povećale za oko 35%, za više od 60 000 ha. Zaliha je takođe povećana sa 125,8 m3/ha na 248 m3/ha ili ukupno za više od 40 350 000 m3 sveukupne drvne mase. Površine šuma su procijenjene na tri različita i neovisna načina. U drugoj inventuri površine šuma su mjerene interpretacijom satelitskih snimaka i na osnovu terenskih snimanja kroz broj ploha. Treći način se odnosi na sumiranje podataka iz važećih šumskogospodarskih osnova ovog područja. Razlike između podataka o površinama utvrđenih na tri različita načina nisu statističi značajne. Možemo zaključiti da je ovo važno pitanje utvrđivanja površina šuma i šumskih zemljišta riješeno na kvalitetan način i kroz terenska snimanja u ovoj oblasti i, s obzirom na to, pretpostavljamo da će biti kvalitetno urađeno i za cijelu BiH.