Kompleksni brojevi u Gaussovoj ravnini

Kompleksni brojevi sve do početka 19. stoljeća nisu prihvaćeni kao ravnopravni ostalim brojevima. Danas ne možemo ni zamisliti izradu matematičkoga modela, kojim se opisuju različite pojave u prirodnim i/ili tehničkim znanostima, bez primjene kompleksnih brojeva. U ovom je radu definiran imaginarni i kompleksni broj, dana je njihova geometrijska interpretacija u Gaussovoj ravnini. Koristeći algebarski prikaz kompleksnoga broja opisane su osnovne računske operacije, a pomoću trigonometrijskoga prikaza kompleksnoga broja, uz množenje i dijeljenje, pojašnjene su operacije potenciranja i korjenovanja

Colobronchial fistula following a partial resection of the colon

We report a case of colobronchial fistula as a late consequence of the resection of the colon due to relapse of the gastrointestinal stromal tumor (GIST). A 54-year-old man experiencing pain in the left upper abdominal region underwent doublecontrast barium enema which revealed a fistulous channel between the splenic flexure of the colon and the bronchial tree. Fiberoptic bronchoscopy, after an extensive washout and aspiration of barium sulphate, confirmed the existence of a fistula in left lower subsegmental bronchi. The patient underwent left lower lobectomy, resection of the colobronchial fistula and resection of the splenic flexure of the colon. A year after the operation, the multidetector computed tomography (MDCT) showed neither signs of malignant abdominal disease, nor signs of pathological changes in the lung bases

Protein sequences bound to mineral surfaces persist into deep time.

Proteins persist longer in the fossil record than DNA, but the longevity, survival mechanisms and substrates remain contested. Here, we demonstrate the role of mineral binding in preserving the protein sequence in ostrich (Struthionidae) eggshell, including from the palaeontological sites of Laetoli (3.8 Ma) and Olduvai Gorge (1.3 Ma) in Tanzania. By tracking protein diagenesis back in time we find consistent patterns of preservation, demonstrating authenticity of the surviving sequences. Molecular dynamics simulations of struthiocalcin-1 and -2, the dominant proteins within the eggshell, reveal that distinct domains bind to the mineral surface. It is the domain with the strongest calculated binding energy to the calcite surface that is selectively preserved. Thermal age calculations demonstrate that the Laetoli and Olduvai peptides are 50 times older than any previously authenticated sequence (equivalent to ~16 Ma at a constant 10°C)

With food to health : proceedings of the 9th International scientific and professional conference

Proceedings contains 7 original scientific papers, 8 professional papers and 1 review paper which were presented at "9th International Scientific and Professional Conference WITH FOOD TO HEALTH", organised in following sections: Nutrition, Dietetics and diet therapy, Food safety, Food analysis, Production of safe food and food with added nutritional value

FREQUENCY OF ARRIVALS OF TRAUMATOLOGICAL PATIENTS AT THE UNIFIED EMERGENCY HOSPITAL ADMISSION IN GOSPIĆ

Ozljede su čest uzrok dolazaka pacijenata na Objedinjeni hitni bolnički prijem Opće bolnice u Gospiću. Traume nastaju tijekom svakodnevnih aktivnosti ljudi a jedan od najčešćih uzroka nastanka su prometne nesreće. Tijekom prometnih nesreća često nastaju višestruke i komplicirane ozljede koje predstavljaju ozbiljnu prijetnju za pacijentov život, te za nastanak trajne invalidnosti. Zbog složenosti i težine ozljeda često je nužan angažman tima stručnjaka kako bi se postigli što bolji rezultati liječenja i spriječile trajne posljedice po zdravlje pacijenta. Veliki problem kod zbrinjavanja pacijenata nakon prometnih nesreća je činjenica da je ponekad nužna intervencija kod više pacijenata istovremeno, što zahtijeva izniman trud zdravstvenog osoblja. Kod liječenja teško ozlijeđenih pacijenata jedan od ključnih čimbenika je vrijeme te je zbog toga potrebno odrediti prioritete i napraviti što kvalitetniju trijažu. S obzirom na ograničene kapacitete Opće bolnice u Gospiću, ponekad je kod masovnih nesreća nemoguće kvalitetno zbrinuti sve ozlijeđene pa je određivanje prioriteta zbrinjavanja pacijenata i tijeka pojedinih medicinskih zahvata iznimno složena zadaća. Cilj ovog rada bio je prikazati učestalost dolazaka traumatoloških pacijenata na Objedinjeni hitni bolničkom prijemu u Gospiću i njihovu zastupljenost prema trijažnim kategorijama i dijagnozama. Podaci su dobiveni iz informativnog sustava Opće bolnice Gospić i iz rezultata možemo iščitati da je većina traumatoloških pacijenata smještena u trijažnu kategoriju 4 (69,92%). Većina traumatoloških pacijenata su muškarci (66,81%) koji su samim time i češći pacijenti u odnosu na ženski spol. Broj traumatoloških pacijenata je najučestaliji u ljetnim mjesecima. Porast broja traumatoloških pacijenata ljeti u odnosu na zimu iznosi 49,83%. Broj traumatoloških pacijenata bilježi porast svake godine, edukacija i ulaganje u zdravstveno osoblje je ključna, kako bi osigurali što kvalitetniju i bolju zdravstvenu zaštitu na području Ličko-senjske županije.Injuries are a common cause of patients coming to the United Emergency Hospital admission of the General Hospital in Gospić. The traumas occur during people's daily activities and one of the most common causes of injuries are traffic accidents. During traffic accidents, multiple and complicated injuries often occur that pose a serious threat to the patient's life and to the development of permanent disability. Due to the complexity and severity of injuries, it is often necessary to engage a team of experts in order to achieve the best possible treatment results and prevent lasting consequences for the patient's health. A major problem in caring for patients after traffic accidents is the fact that sometimes it is necessary to treat several patients at the same time, which requires exceptional effort from the medical staff. In the treatment of severely injured patients, one of the key factors are time, and therefore it is necessary to set priorities and make the best possible assessment of the situation. Considering the limited capacity of the hospital in Gospić, it is sometimes impossible to provide quality care for all injured in mass accidents, so determining the priority of patient care and the course of certain medical procedures are an extremely complex task. The goal of this thesis was to show the frequency of arrivals of traumatology patients at the unified emergency hospital in Gospić and the level of presence according to triage categories and diagnoses. The data were collected from the information system of the General Hospital Gospić and from the results we can read that most trauma patients were placed in triage category 4 (69.92%). The majority of trauma patients are men (66.81%), who are therefore more frequent patients than females. The number of trauma patients is most common in the summer months. The increase in the number of trauma patients in summer compared to winter is 49.83%. The number of trauma patients is increasing every year, education and investment in medical staff is crucial, in order to ensure the highest quality and better health care in the Lika-Senj County

Adherence Index Based on the AHA 2006 Diet and Lifestyle Recommendations Is Associated with Select Cardiovascular Disease Risk Factors in Older Puerto Ricans123

In 2006, the AHA released diet and lifestyle recommendations (AHA-DLR) for cardiovascular disease (CVD) risk reduction. The effect of adherence to these recommendations on CVD risk is unknown. Our objective was to develop a unique diet and lifestyle score based on the AHA-DLR and to evaluate this score in relation to available CVD risk factors. In a cross-sectional study of Puerto Rican adults aged 45–75 y living in the greater Boston area, information was available for the following variables: diet (semiquantitative FFQ), blood pressure, waist circumference (WC), 10-y risk of coronary heart disease (CHD) (Framingham risk score), and fasting plasma lipids, serum glucose, insulin, and C-reactive protein (CRP) concentrations. We developed a diet and lifestyle score (AHA-DLS) based on the AHA-DLR. The AHA-DLS had both internal consistency and content validity. It was associated with plasma HDL cholesterol (P = 0.001), serum insulin (P = 0.0003), and CRP concentrations (P = 0.02), WC (P < 0.0001), and 10-y risk of CHD score (P = 0.01 in women). The AHA-DLS was inversely associated with serum glucose among those with a BMI < 25 (P = 0.01). Women and men in the highest quartile of the AHA-DLS had lower serum insulin (P-trend = 0.0003) and CRP concentrations (P-trend = 0.002), WC (P-trend = 0.0003), and higher HDL cholesterol (P-trend = 0.008). The AHA-DLS is a useful tool to measure adherence to the AHA-DLR and may be used to examine associations between diet and lifestyle behaviors and CVD risk