The metal content (iron and copper) was potentiometrically analyzed in 44 tea samples. The analyzed samples included chamomile ( Matricaria chamomilla ), green tea ( Camellia sinensis ), sage tea ( Salvia officinalis L.), linden ( Tilia L.) and mint ( Mentha piperita ) in tea bags and bulk purchased at local supermarkets and marketplaces in Split, Croatia. Tea samples digestion was performed in microwave oven by using nitric acid and hydrogen peroxide mixture. Potentiometric determination was performed by using FISE for Fe 3+ and CuISE for Cu 2+ , respectively, by using potentiometric methods previously developed in our laboratory. The measured results were compared with atomic absorption spectrometric measurements from our previous research and showed notable statistical superposition.

We report on a numerical study of the vortex structure modifications and drag reduction in a flow over a rotationally oscillating circular cylinder at a high subcritical Reynolds number, $Re=1.4\times 10^{5}$ . Considered are eight forcing frequencies $f=f_{e}/f_{0}=0.5$ , $1$ , $1.5$ , $2$ , $2.5$ , $3$ , $4$ , $5$ and three forcing amplitudes $\unicode[STIX]{x1D6FA}=\unicode[STIX]{x1D6FA}_{e}D/2U_{\infty }=1$ , $2$ , $3$ , non-dimensionalized with $f_{0}$ , which is the natural vortex-shedding frequency without forcing, $U_{\infty }$ the free-stream velocity, $D$ the diameter of the cylinder. In order to perform a parametric study of a large number of cases ( $24$ in total) with affordable computational resources, the three-dimensional unsteady computations were performed using a wall-integrated (WIN) second-moment (Reynolds-stress) Reynolds-averaged Navier–Stokes (RANS) turbulence closure, verified and validated by a dynamic large-eddy simulations (LES) for selected cases ( $f=2.5$ , $\unicode[STIX]{x1D6FA}=2$ and $f=4$ , $\unicode[STIX]{x1D6FA}=2$ ), as well as by the earlier LES and experiments of the flow over a stagnant cylinder at the same $Re$ number described in Palkin et al. (Flow Turbul. Combust., vol. 97 (4), 2016, pp. 1017–1046). The drag reduction was detected at frequencies equal to and larger than $f=2.5$ , while no reduction was observed for the cylinder subjected to oscillations with the natural frequency, even with very different values of the rotation amplitude. The maximum reduction of the drag coefficient is 88 % for the highest tested frequency $f=5$ and amplitude $\unicode[STIX]{x1D6FA}=2$ . However, a significant reduction of 78 % appears with the increase of $f$ already for $f=2.5$ and $\unicode[STIX]{x1D6FA}=2$ . Such a dramatic reduction in the drag coefficient is the consequence of restructuring of the vortex-shedding topology and a markedly different pressure field featured by a shrinking of the low pressure region behind the cylinder, all dictated by the rotary oscillation. Despite the need to expend energy to force cylinder oscillations, the considered drag reduction mechanism seems a feasible practical option for drag control in some applications for $Re>10^{4}$ , since the calculated power expenditure for cylinder oscillation under realistic scenarios is several times smaller than the power saved by the drag reduction.

Background: The association of pulmonary tuberculosis (PTB) and diabetes mellitus (DM) is very common. Objectives: to find out whether there is a difference in clinical presentation and treatment outcomes of diagnosed PTB in diabetic patients comparing to PTB patients without diabetes mellitus. Methods: Clinical symptoms, radiographic appearance of extensive forms of PTB as well as treatment outcomes of pulmonary tuberculosis were reviewed in 97 diabetic patients and compared to 97 patients affected only by PTB. Results: Cough was the most common symptom in both groups, but with significant difference in the favour of diabetic patients (p Conclusions: More severe clinical presentation and lower TB treatment cure rate were registered in diabetic patients comparing to non-diabetics.

The selection of the appropriate apple varieties is one of the most important decisions in orchards establishing. The paper gives the methodology for estimating the most suitable varieties of apples when establishing orchards according to modern market demands. This methodology is based on the DEX method for hierarchy-based multi-criteria decision making. The model developed in this paper was applied on four apple varieties, whereby an expert evaluation was used. The experts included in evaluation are from the Fruit Federation of Integral Fruit Production in Laktasi, where panel research was used. Fruit varieties that were observed are: Top Red, Idared, Gala and Golden Delicious because they are the most commonly planted in the orchards at the area of Northwest B&H. The basic advantage of this model is simple application. With visual characteristics of the DEXi program tool and graph radar it is easier to see the good and bad sides of the technological and economic features of the each analyzed apple varieties. The results of the model shows that the Top Red variety is “best” suited for establishing a new orchard, while Idared is rated as "good". The other two varieties used in this model are rated as "medium". For the final selection of apple varieties, it is necessary to carry out an analysis on a single micro-location where all the characteristics of the area should be taken into account.

Chris Boshoff, Senior Vice President of Immuno-Oncology, Translational and Early Development at Pfizer, and colleagues Samra Turajlic and Charles Swanton from the Francis Crick Institute and University College London give us their personal point of view on new insights and future therapeutic approaches for renal cancer.

Abstract In this note, we develop a novel algorithm for generating random numbers from a distribution with a probability density function proportional to and Our algorithm is highly efficient and is based on rejection sampling where the envelope distribution is an appropriately chosen beta distribution. An example application illustrating how the new algorithm can be used to generate random correlation matrices is discussed.

Cold War, mentioning several important events such as the Cuban missile crisis, the Soviet leadership’s anti-Western campaigns and the erection of the Berlin Wall. The case of the spy in question is an important one. His trial and verdict served as a precedent for other legal cases, some involving Nazi party members, as the Soviet government was found to have the main responsibility for the assassinations, while the agent was merely seen as an accessory to murder. In addition to the legal implications of the case, the agent’s confessions about the Soviet secret missions deeply affected Western views of the Soviet Union and attitudes towards the d etente era. Both books are highly recommended to those who are interested in the question of how postcommunist societies deal with their own past. ‘Collaborator’ may hold a pejorative meaning in many languages but the authors of the books under review do not fall prey to lazy oversimplifications in discussing ‘collaborators’ and their deeds. They carefully emphasise the political and social structure that shaped individual and collective agency, raising important questions about motivations for collaboration and transitional justice in the post-Cold War era.

Ovaj je članak sažetak izvješća koje je napravljeno za LUCIDE (Languages in Urban Contexts: Integration and Diversity in Europe; Jezici u urbanim kontekstima: integracija i raznolikost u Europi) projekt i mrežu. Projekt je financiran iz Programa Europske unije za cjeloživotno učenje 2011.-2014., temeljem prikupljenih primarnih i sekundarnih podataka. Ovaj se sažetak fokusira na višejezičnost u osnovnoškolskom obrazovanju. Cjelovito izvješće govori o višejezičnosti u nekoliko ostalih područja: javnoj, gospodarskoj, privatnoj sferi te urbanim prostorima (dostupno na: www.urbanlanguages.eu) S obzirom na veličinu, stanovništvo i složenost Londona u radu je posebna pažnja usmjerena na lokalnu jedinicu (od postojeće 33): grad Westminster koji je zemljopisno srce ove metropole. Westminster je na mnogo načina predstavnik jezičnih trendova u Londonu. To pokazuje neke od najistaknutijih obilježja višejezičnosti Londona, kao što je izvanredna lingvistička raznolikost sa širokom rasprostranjenošću jezika, pri čemu niti jedan jezik nije dominantan. Cilj ovog istraživanja je stjecanje uvida u iskustva višejezičnih učenika u Londonu s obzirom na obrazovnu praksu i relevantne politike. Primarne podatke prikupio je tim od četiri istraživača koji su konzultirali 82 stručnjaka relevantna za identificirana područja prakse. Korištene su metode intervjuiranja i anketiranja. Uzorkovanje je svrhovito obuhvaćalo relevantne struke: obrazovanje, socijalni rad, javne službe, policiju i financije te stručnjake iz poslovnog sektora. Teorijski okvir za razvoj ovog pristupa je tipologija uporabe jezika koja razlikuje: simboličku, pragmatičnu i autoritativnu primjenu jezika.