Nonlocal vs local vortex dynamics in the transversal flux transformer effect

In this follow-up to our recent Letter [F. Otto et al., Phys. Rev. Lett. 104, 027005 (2010)], we present a more detailed account of the superconducting transversal flux transformer effect (TFTE) in amorphous (a-)NbGe nanostructures in the regime of strong nonequilibrium in local vortex motion. Emphasis is put on the relation between the TFTE and local vortex dynamics, as the former turns out to be a reliable tool for determining the microscopic mechanisms behind the latter. By this method, a progression from electron heating at low temperatures T to the Larkin-Ovchinnikov effect close to the transition temperature Tc is traced over a range 0.26 < T/Tc < 0.95. This is represented by a number of relevant parameters such as the vortex transport entropy related to the Nernst-like effect at low T, and a nonequilibrium magnetization enhancement close to Tc. At intermediate T, the Larkin-Ovchinnikov effect is at high currents modified by electron heating, which is clearly observed only in the TFTE

DIFFERENCES IN KINEMATIC PARAMETERS OF ATHLETES OF DIFFERENT RUNNING QUALITY

The aim of the study was to determine the differences among subjects of different sprinting quality in the variables of running dynamics in the 100 m sprint event and in the variables of kinematic indicators (stride frequency, stride length, foot-ground contact duration, airborne phase duration). The research was conducted on a sample of 133 physical education teacher male students, aged 19 to 24 years (age 21.7 ± 1.08 yrs; body height 180.8 ± 6.98 cm; body mass 76.6 ± 7.62 kg), first year students at the Faculty of Kinesiology, University of Zagreb, who regularly attended their athletics classes. Basic descriptive statistical parameters were computed. Cluster analysis was used to determine sprinting-quality-based homogeneous groups of subjects. The qualitative differences among the subjects pertaining to the defined groups were established by canonical discriminant analysis. One significant discriminant function was obtained differentiating the group of students who performed well from all the other groups of students with poorer sprint performance. The best performance group demonstrated running technique characterised by the shortest foot-ground contact time in the phases of starting acceleration and maximum speed running, and a larger stride length in the phase of maximum speed running

I distance application in the ranking of Group 8 and European Union countries by level of development

According to the analyses published by the international organizations, the most developed countries are those from Group 8. The group of highly developed countries is in matter, which consists of: Japan, USA, Russia, Great Britain, Italy, Germany, France and Canada. The goal of the work is to determine the ranking list of the selected countries according to the level of development in 2021 based on a certain number of macroeconomic factors. For the purposes of realizing the formulated goal, the I distance method was applied. A decision for the I distance method comes from the fact that this model satisfies all the conditions characteristic for the nature of distance, that is, for the multidimensional phenomenon of development. Based on the ranking list of Group 8 countries, the United States of America is in the first place, followed by Germany, France, the United Kingdom, Italy, Canada, the Russian Federation and Japan. Speaking about the EU countries, the Netherlands has the highest level of development according to the selected indicators, followed by Ireland, Belgium, Spain, Poland, Sweden, Austria, Denmark, Czech Republic, Luxembourg etc. The coming future will probably bring changes when it comes to the ranking on the ranking list. Changes can be expected due to the war events, demographic trends, technological achievements, and generally the replacement of the leading positions when it comes to resources. Namely, it is certain that the countries that adapt faster to other energy sources as well as to more economical use of the existing ones, will have a leading role on a global scale

Pore geometry of ceramic device: The key factor of drug release kinetics

Release kinetics of tigecycline, a potential antibiotic in treatment of osteomyelitis, from calcium hydroxyapatite (CHA), as one of the most important ceramic materials in bone tissue engineering, was investigated in this study. Tigecycline, in solid state, was mixed with CHA powder and the obtained mixture was compressed into tablets using two different pressures. These tablets were immersed in a phosphate-buffered saline solution and tigecycline release was measured by a UV-VIS spectrophotometer. The total release time was 5 or 28 days, depending on the pressure applied during compression. It was shown that there is a close relationship between pore sizes and drug release rate. The drug release kinetics was interpreted on the base of pore sizes and pore size distribution. [Projekat Ministarstva nauke Republike Srbije, br. 172026

Temporal determination in complex sentences with a temporal clause in Swedish and Serbian

Predmet rada predstavlja temporalna determinacija, tj. određivanje s obzirom na okolnost tipa vreme, supraordinirane predikacije rečeničnih kompleksa sa integrisanom vremenskom klauzom u savremenom švedskom i savremenom srpskom jeziku. U radu ispitujemo načine na koje supraordinirana predikacija datih kompleksa biva 1) interno temporalna determinisana, tj. određena s obzirom na okolnost tipa vreme u odnosu na predikaciju vremenske klauze kao referentnu tačku, te 2) eksterno temporalno determinisana, tj. određena s obzirom na okolnost tipa vreme u odnosu na trenutak govora kao referentnu tačku. U ispitivanju temporalne determinacije polazimo od tipa značenja, i u centru pažnje rada je semantička analiza. Analizi podvrgavamo švedske rečenične komplekse sa integrisanom vremenskom klauzom i njihove srpske prevodne ekvivalente, sa obuhvatnim ciljem da utvrdimo koji istovrsni odnosno različiti sintaksičko-semantički elementi (poput temporalnog veznika, tipova situacije te aspekatskog značenja predikacija, glagolskih vremena u predikacijama itd.) samostalno ili u sadejstvu igraju ulogu u internoj odnosno eksternoj temporalnoj determinaciji supraordinirane predikacije datih kompleksa. Utvrđujemo da u domenu obaju tipova temporalne determinacije švedski i srpski rečenični kompleksi s vremenskom klauzom pokazuju jedan broj razlika, ali i niz sličnosti, koje se u domenu eksterne temporalne determinacije prvenstveno ogledaju u centralnoj ulozi glagolskog vremena u supraordiniranoj predikaciji kao temporalnog determinatora za vremensku sferu, a u domenu interne temporalne determinacije u manifestovanju interne temporalne determinacije kao kompleksnog semantičkog sistema identične strukture u obama jezicima.В настоящей работе рассматривается временная детерминация, то есть определение управляющего предиката с точки зрения времени в сложноподчиненных предложениях с придаточными предложениями времени в современном шведском и современном сербском языках. В работе исследуются способы, на основании которых управляющий предикат в указанных сложноподчиненных предложениях имеет: 1) внутреннюю временную детерминацию, то есть определяется с точки зрения времени на основании предиката придаточного предложения времени в качестве определяющей характеристики, или 2) внешнюю временную детерминацию, то есть определяется с точки зрения времени на основании момента высказывания в качестве определяющей характеристики. При исследовании временной детерминации исходим от типа значения и в центр настоящей работы ставим семантический анализ. Подвергаем анализу шведские сложноподчиненные предложения с придаточными предложениями времени и их аналоги в переводе на сербский язык, с целью определить, какие из аналогичных, то есть отличающихся синтаксическо- семантических элементов (как например: временной союз, тип ситуации и глагольный вид в предикатах, грамматическое время в предикатах и т.д.) самостоятельно или в сочетании влияют на внутреннюю, то есть внешнюю временную детерминацию управляющих предикатов указанных сложноподчиненных предложений. Приходим к выводу, что в случае обоих видов временной детерминации, в шведских и сербских сложноподчиненных предложениях с придаточными предложениями времени проявляется определенное количество отличий, но и ряд сходств, которые в отношении внешней временной детерминации в первую очередь отражаются в центральной роли грамматического времени в управляющем предикате, как решающего фактора определяющего временной план, а в отношении внутренней временной детерминации отражаются в проявлении внутренней временной детерминации как комплексной семантической системы идентичной структуры в обоих языках

Nonlocal vortex motion in mesoscopic amorphous Nb0.7Ge0.3 structures

We study nonlocal vortex transport in mesoscopic amorphous Nb0.7Ge0.3 samples. A dc current I is passed through a wire connected via a perpendicular channel, of a length L= 2-5 um, with a pair of voltage probes where a nonlocal response Vnl ~ I is measured. The maximum of Rnl=Vnl/I for a given temperature occurs at an L-independent magnetic field and is proportional to 1/L. The results are interpreted in terms of the dissipative vortex motion along the channel driven by a remote current, and can be understood in terms of a simple model.Comment: 4 pages, 3 figure

Physico-chemical Properties of Corn Extrudates Enriched with Tomato Powder and Ascorbic Acid

The aim of this research was to investigate the influence of the addition of tomato powder (TP) to corn grits at levels 4, 6 or 8 % and the addition of ascorbic acid (AA) at levels 0.5 and 1 %, on total polyphenol content (PF), and antioxidant activity of the extrudates. The hardness and the expansion ratio of the extruded products were also tested. Mathematical models that describe the influence of additives on the mentioned properties were also determined. Extrusion was performed at two temperature regimes: 135/170/170 °C and 100/150/150 °C. Lower temperature regime led to increased hardness and the expansion of extrudates. The addition of tomato and AA led to decreased hardness and the expansion at both temperature regimes. The addition of tomato increased PF and AA compared with pure corn extrudates. Greater degradation of PF and AA was at lower temperature regime. High correlation between PF and AA was demonstrated at both extrusion temperatures

PERMANENT AND SOWN GRASSLANDS IN SERBIA: CURRENT STATE AND TRENDS

Number of cattle in Serbia during two decades of the 21st century shows the tendency of decreasing. The main source for sustainable livestock production in Serbia are grasslands. Permanent grasslands occupy approximately 30% of agricultural land in Serbia, thereby playing an important role in forage production and ecosystem services. The majority of natural meadows and pastures are located in hilly-mountainous regions. The general characteristics of grasslands in the central Balkans are low production and insufficient quality. The yield of permanent grasslands in Serbia is influenced very strongly by climatic conditions, type of grassland and level of organic and mineral fertilization. On areas that are not managed by mowing and fertilizing, forbs make up over half of the plant production.This paper presents some recent experiences and results in livestock feed production obtained from permanent and sown meadows and pastures in Serbia. There is survey of permanent grassland botanical composition and productivity with special emphasis on importance of preserving legume species. Also, recent trials assessed the benefits of mineral and organic fertilizers application in terms of forage production, testing whether the mineral or organic sources improves the stability of the grassland and evaluated response patterns over a large environmental gradient. Nutrient availability in permanent grasslands has a strong influence on plant species biodiversity, plant cover, and species’ dominance in the vegetation canopy. Dry matter yield is very low with high variation in crude protein content, which confirms that grasslands need to be maintained through fertilizer application, with special emphasis being given to the new role of manure enriched by zeolite. The above-stated lead to poor production potential of these grasslands for livestock production, nonetheless offering sustainable means of soil and biodiversity protection in the area

The common foodborne viruses: A review

Transmission pathways of foodborne viruses include contamination of food by infected food handlers, by contamination of food during the production process and by consumption of products of animal origin harbouring a zoonotic virus. Viral foodborne illnesses, which have become a significant cause of all reported foodborne illnesses in recent years and considered as an emerging risk in veterinary public health. Microbiological genomics studies discovered that Noroviruses and hepatitis A viruses were primarily associated with food-handler transmission and sewage-contaminated foods. In contrast, hepatitis E was associated with consumption of raw or undercooked meat of pig or wild animals. In order to facilitate source attribution and identify risk prevention measures, Routine harmonized surveillance of viral outbreaks, and surveillance of virus occurrence in food commodities, in combination with systematic strain typing, and joint expertise from veterinary, food, and clinical microbiologists would be recommended

Antimicrobial resistance among Salmonella enterica serovar Infantis from broiler carcasses in Serbia

This study aimed to investigate antimicrobial resistance of Salmonella Infantis isolates from poultry carcasses in Serbia. A total of 48 Salmonella isolates were examined for antimicrobial resistance. A panel of 10 antibiotics was selected for testing. Isolates showed resistance to sulfamethoxazole, ceftazidime and cefotaxime (100%). However, the highest number of Salmonella Infantis isolates were sensitive to chloramphenicol. The usage of antibiotics in food producing animals could result in antimicrobial resistance pathogenic bacteria especially Salmonella spp. in poultry, which may be transmitted to humans through the food chain and increase risk of treatment failures