29 research outputs found
A SIMPLE METHOD FOR ASSESSMENT OF MUSCLE MECHANICAL CAPACITIES FROM FUNCTIONAL MOVEMENT TASKS
The aim of the present study was to evaluate the level of agreement between the routinely used multiple-load method and a simple two-load method based on direct assessment of the F-V relationship from only 2 external loads applied. Twelve participants were tested on the maximum performance vertical jumps, cycling, bench press throws, and bench pull performed against a variety of different loads. All four tested tasks revealed both exceptionally strong relationships between the parameters of the 2 methods (median R = 0.98) and a lack of meaningful differences between their magnitudes (fixed bias below 3.4%). Therefore, addition of another load to the standard tests of various functional tasks typically conducted under a single set of mechanical conditions could allow for the assessment of the muscle mechanical properties, such as the muscle F, V, and P producing capacities
Arsenic levels in groundwater aquifer of the Neoplanta source area
As part of a survey on the groundwater aquifer at the Neoplanta source site, standard laboratory analysis of water quality and an electromagnetic geophysical method were used for long-term quantitative and qualitative monitoring of arsenic levels. This study presents only the results of research conducted in the Neoplanta-Koteksprodukt zone for 2005 and 2008 for the purpose of comparison of water quality at the aquifer. Varying levels of arsenic in both industrial and sanitary waters were determined, indicating water pollution with arsenic compounds. The horizontal electromagnetic prospecting method was used to define the extent of the arsenic-polluted zone and pollution direction. Vertical prospecting in the polluted zone helped identify the depth and interval of arsenic infiltration into both soil and water.Key words: Water source area, arsenic content, electromagnetic method, RADIJAN 2001
Quantitative traits in wheat (Triticum aestivum L. cv. 'Novosadska rana 5') grown on pseudogley soil depending on lime rates
The effect of the use of different lime rates on the pH values and subsequently on the quantitative traits in wheat (Triticum aestivum L. cv. 'Novosadska rana 5') was investigated on the pseudogley type of soil. Of the quantitative traits in wheat, spike length, number of spikes per m2, grain mass per spike, number of grains per spike and 1000-grain weight, were studied as the most significant indicators of its yield. The studies were carried out during 2010 and 2011. The trial was set up following a randomized block design with four liming variants along with three replications, in which the experimental field was 70 m2 in area. In both study years, along with the previously determined experimental conditions, the variant of CaCO3, used with an amount of 2 t/ha, was found to have the highest effect on enhancing all the parameters of wheat. Based on the results obtained throughout the current research work, it could be inferred that, despite falling under a lower quality class, pseudogley soil could promote usable optimal biological potential of the wheat variety ('Novosadska rana 5'), if adequately treated with lime along with the application of cropping practices.Key words: Pseudogley, lime rates, wheat, grown
Fitotoksični efekti soli natrijuma na klijavost i porast klice tritikalea
The limiting factor for increasing agricultural production for numerous crops is land salinity. The aim of the study was to determine stress effect of sodium salt (NaCl, NaHCO3, Na2SO3 i Na2CO3) on germination and growth triticale varieties – Vojvoda and Smaragd variety, in order to determine degree of tolerance of these varieties on the examined salts. Based on the toxic effect on percentage of germination, germination energy, root length and hypocotyl of the triticale Vojvoda variety and Smaragd variety, the most toxic effect has Na2CO3 and the weakest toxic effect has NaCl. The Smaragd variety is more susceptible to the presence of sodium salts in relation to theVojvoda variety.Limitirajući faktor za povećanje poljoprivredne proizvodnje za brojne biljne vrste je salinitet zemljišta, odnosno povećana koncentracija lako rastvorljivih soli u zemljištu, naročito natrijumovih. Cilj proučavanja bio je da se utvrdi efekat stresa soli natrijuma (NaCl, NaHCO3, Na2SO3 i Na2CO3) na klijanje i rast klijanaca tritikalea sorte Vojvoda i Smaragd, kako bi se odredio stepen tolerantnosti ovih sorti na ispitivane soli. Rezultati pokazuju obrnutu korelaciju između korišćenih koncentracija soli i procenta klijavosti i rasta korenka i hipokotila. Na osnovu toksičnog efekta na procenat klijavosti, energiju klijavosti, dužinu korenka i hipokotila semena triikalea sorte Vojvoda i sorte Smaragd najjači toksični efekat ima Na2CO3 a najslabiji NaCl. Sorta Smaragd osetljivija je na prisustvo soli natrijuma u odnosu na sortu Vojvoda
Erozija zemlјišta malog sliva Matijevića potok (zapadna Srbija)
Due to a variety of both natural and anthropogenic erosion factors, the general
condition of the Matijevića brook torrential catchment area has contributed to the
overall picture of soil erosion intensity in the area. From the aspect of belonging to the
type of torrential flow stream Matijevića brook is the gully (F) with mean annual
erosion-induced sediment yield Wyear from 206,39 m3 year-1 and total annual specific
sediment yield at the confluence of the the Matijevića brook in Tinja (left tributary of
Kamenica, which the river flows into the West Morava with her left hand) where Ggod sp
-1
were 75.51 m3 km-2 yr-1.Usled različitih činilaca procesa erozije, prirodnih i antropogenog, opšti
uslovi područja bujičnog toka Matijevića potok, doprineli su sagledavanju intenziteta
erozije zemljišta sliva. Sa aspekta pripadnosti tipu bujičnog toka Matijevića potok je
vododerina (F) sa srednjegodišnjom količinom erozionog nanosa (Wgod) od 206,39 m3
god-1 i specifičnom godišnjom količinom ukupnog erozionog nanosa, koja dospeva do
ušća Matijevića potoka u Tinju (leva pritoka Kamenice, koja se u reku Zapadnu Moravu
uliva sa njene leve strane), Ggod sp
-1, od 75,51 m3 km-2 god-1
ODREĐIVANJE HEMIJSKOG SASTAVA RAZLIČITIH EKSTRAKATA ČUVARKUĆE
Sempervivum tectorum has a similar effect as aloe vera, which is known in
the treatment of various skin diseases. This herb is considered one of the safest
remedies for a wide range of skin diseases. Due to its anti-inflammatory and
antiseptic properties, it also serves as an excellent first aid for burns, stings and bites,
because it provides quick relief and calming. Freshly squeezed juice from the leaves
of the houseplant is used in the treatment of nervous disorders, epilepsy and restless
dreams. The leaves are edible and can be used as an addition to salads or stews. They
are not particularly tasty, but as they are rich in water, they can be put in a juicer
together with other fruits or vegetables and become a refreshing drink. It is used in
folk herbal medicine and as a medicine.
The aim of this study was to determine the moisture content, total extracted
substances, extract density, vitamin C, organic acids and proteins in house extracts.Publishe
ISPITIVANJE EKSTRAKATA ORIGANA DOBIJENIH RAZLIČITIM METODAMA
Oregano is used in the production of specific aromatic cheeses, meat products
and dough dishes, for the production of medicinal preparations, fragrant soaps,
colognes and perfumes. Special interest in oregano in recent years is related to the
results of a study of its biological activities, which indicate a wide range of
antibacterial, fungicidal, antiviral and antioxidant properties. The subject of this
paper is the examination of extracts of plant species of oregano (Origanum
vulgare), with the aim of determining the method that is most popular for
extracting this plant species and which gives the best yields of extracts. The
content of extracted substances in each extract, the content of vitamin C as well as
the content of organic acids were determined.Publishe
Monitoring alergenog polena u Čačku tokom 2015.godine
This paper presents a report of allergenic pollen monitoring obtained by an analysis of measurements including the types and numbers of pollen grains in air sampled, and pollination period for each allergenic plant in the Town of Čačak. The degree of allergenicity was highest for ambrosia, followed by birch and grass pollen. Pollination period was longest in grasses (about 160 days), followed by nettles (somewhat over 140 days) and plantains (about 130 days), as opposed to less than 100 days in all other species and families. In Čačak, during 2015, a total of 1728 pollen grains of ambrosia were measured, with a maxium daily concentration of 375 grains per m3 air on 2 September 2015. During pollen emission from trees, birch had 2309 pollen grains during its pollination, with 531 grains per m3 of air on 16 April 2015, which was an approximately 9-fold increase relative to limit values.Rad je prikaz monitoringa alergogenog polena dobijen analizom rezultata merenja gde su određene vrste i broj polenovih zrna u vazduhu kao i dužina polinacije za svaku alergenu biljku na teritoriji grada Čačka. Najveći stepen alergenosti pokazuje ambrozija, zatim breza i trave. Po dužini polinacije izdvajaju se trave (oko 160 dana), zatim slede koprive (nešto iznad 140 dana), bokvice (oko 130 dana), dok su sve ostale vrste i porodice polinirajuće manje od 100 dana. U Čačku je u toku 2015. godine izmereno ukupno 1728 polenovih zrna ambrozije sa maksimalnom dnevnom koncentracijom od 375 zrna po m³ vazduha 02.09.2015.godine. Tokom emitovanja polena drveća breza je imala ukupno 2309 polenovih zrna u toku svoje polinacije sa 531 zrna po m³ vazduha 16.04.2015. što je oko 9 puta više od granične vrednosti
Stanje erozije zemljišta malog sliva Dmitrov potok (zapadna Srbija)
Due to a variety of both natural and anthropogenic erosion factors, the general condition of the Dmitrov brook torrential catchment area has contributed to the overall picture of soil erosion intensity in the area. From the aspect of belonging to the type of torrential flow stream Dmitrov brook is the less torrential brook (D) with mean annual erosion-induced sediment yield Wyear from 772.85 m3 year-1 and total annual specific sediment yield at the confluence of the the Dmitrov brook in Tinja (left tributary of Kamenica, which the river flows into the West Morava with her left hand) where Ggod sp-1 were 220.81 m3 km-2 yr-1.Usled različitih činilaca procesa erozije, prirodnih i antropogenog, opšti uslovi područja bujičnog toka Dmitrov potok, doprineli su sagledavanju intenziteta erozije zemljišta sliva. Sa aspekta pripadnosti tipu bujičnog toka Dmitrov potok je manji bujični potok (D) sa srednjegodišnjom količinom erozionog nanosa (Wgod) od 772,85 m3 god-1 i specifičnom godišnjom količinom ukupnog erozionog nanosa, koja dospeva do ušća Dmitrovog potoka u Tinju (leva pritoka Kamenice, koja se u reku Zapadnu Moravu uliva sa njene leve strane), Ggod sp-1, od 220,81 m3 km-2 god-1
von Willebrand Factor and Oxidative Stress Parameters in Acute Coronary Syndromes
Considering the role of von Willebrand factor (vWf) in hemostasis, and the role of oxidative stress in the development of endothelial dysfunction and atherosclerotic disease, the aim of our study was to investigate the relationship between vWf, parameters of oxidative stress and different types of acute coronary syndromes (ACS). Levels of vWf activity (vWfAct), vWf antigen (vWfAg), nitric oxide (estimated through nitrites–NO2 −), superoxide anion radical (O2 −), hydrogen peroxide (H2O2), index of lipid peroxidation (estimated through thiobarbituric acid reactive substances–TBARS), superoxide dismutase (SOD) and catalase (CAT) activity of 115 patients were compared with those of 40 healthy controls. ACS patients had significantly higher vWfAct and vWfAg levels, as well as TBARS levels, while their levels of NO2 −, H2O2, SOD and CAT activities were lower than controls'. vWfAg showed high specificity and sensitivity as a test to reveal healthy or diseased subjects. Multivariant logistic regression marked only vWfAg and TBARS as parameters that were under independent effect of ACS type. The results of our study support the implementation of vWf in clinical rutine and into therapeutic targets, and suggest that ACS patients are in need of antioxidant supplementation to improve their impaired antioxidant defence