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排序方式: 共有231条查询结果,搜索用时 16 毫秒
41.
Mihailović Mirjana Arambašić Jelena Uskoković Aleksandra Dinić Svetlana Grdović Nevena Marković Jelena Mujić Ibrahim Šijački D. Ana Poznanović Goran Vidaković Melita 《Journal of Functional Foods》2013,5(1):267-278
The mechanisms underlying the beneficial effect observed in diabetic rats after treatment with a commercially available β-glucan-enriched extract (BGEE) were examined. Multiple low-dose streptozotocin (STZ) diabetes was used (40 mg STZ/kg) as a model for type 1 diabetes. BGEE was administered daily (80 mg/kg) for 4 weeks, starting from the last day of the STZ treatment. In vitro and in vivo experiments suggest that significant free radical scavenging and antioxidant activities of BGEE were responsible for a systemic adjustment of the redox disturbance and reduction of DNA damage in the liver and kidney of diabetic rats. BGEE-treated diabetic rats also displayed increased Akt kinase activity and decreased pro-caspase-3 degradation, implying that BGEE mediates its beneficial effects through activation of the cellular pro-survival pathway. We conclude that β-glucan administration under diabetic conditions promotes a systemic improvement that can be expected to increase the organism’s resistance to the onset of diabetic complications. 相似文献
42.
Layne Christopher M.; Pynoos Robert S.; Saltzman William R.; Arslanagi? Berina; Black Mary; Savjak Nadezda; Popovi? Tatjana; Durakovi? Elvira; Mu?i? Mirjana; ?ampara Nihada; Djapo Nermin; Houston Ryan 《Canadian Metallurgical Quarterly》2001,5(4):277
Results of a preliminary effectiveness evaluation of a school-based postwar program for war-exposed Bosnian adolescents are described. The evaluation centered on a manualized trauma/grief-focused group psychotherapy protocol for war-traumatized adolescents based on 5 therapeutic foci: traumatic experiences, trauma and loss reminders, postwar adversities, bereavement and the interplay of trauma and grief, and developmental impact. Fifty-five secondary school students (81% girls; age range?=?15–19 years, M?=?16.81) from 10 Bosnian schools participated in the evaluation. Students completed pregroup and postgroup self-report measures of posttraumatic stress, depression, and grief symptoms and postgroup measures of psychosocial adaptation and group satisfaction. The evaluation yielded preliminary but promising results, including reduced psychological distress and positive associations between distress reduction and psychosocial adaptation. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
43.
Mirjana D. Timotijevi Tanja Ili Bojan Markovi Danijela Randjelovi Neboja Ceki Ines Nikoli Sneana Savi Ivana Panteli 《International journal of molecular sciences》2022,23(11)
Polymeric film-forming systems have emerged as an esthetically acceptable option for targeted, less frequent and controlled dermal drug delivery. However, their dynamic nature (rapid evaporation of solvents leading to the formation of thin films) presents a true characterization challenge. In this study, we tested a tiered characterization approach, leading to more efficient definition of the quality target product profiles of film-forming systems. After assessing a number of physico-chemico-mechanical properties, thermal, spectroscopic and microscopic techniques were introduced. Final confirmation of betamethasone dipropionate-loaded FFS biopharmaceutical properties was sought via an in vitro skin permeation study. A number of applied characterization methods showed complementarity. The sample based on a combination of hydrophobic Eudragit® RS PO and hydroxypropyl cellulose showed higher viscosity (47.17 ± 3.06 mPa·s) and film thickness, resulting in sustained skin permeation (permeation rate of 0.348 ± 0.157 ng/cm2 h), and even the pH of the sample with Eudragit® NE 30D, along with higher surface roughness and thermal analysis, implied its immediate delivery through the epidermal membrane. Therefore, this study revealed the utility of several methods able to refine the number of needed tests within the final product profile. 相似文献
44.
Milica V. Carević Nadica D. Abazović Tatjana D. Savić Tatjana B. Novaković Dejan J. Pjević Mirjana I. Čomor 《Journal of the American Ceramic Society》2018,101(4):1420-1431
Solvothermal synthesis of ZrO2–TiO2 binary oxides and pure counterparts at 150°C in water/isopropanol media is presented. Titanium (IV) isopropoxide and zirconium (IV) propoxide were used as precursors. XRD and TEM techniques were used for structural and morphological characterization of obtained samples. XPS spectra of mixed oxide samples were compared in order to correlate composition of samples with surface properties and presence of defects. Relative positions of defect states within band‐gaps of semiconductors were estimated from UCPL spectra. UV‐Vis DRS spectra revealed that both pure oxides experienced red shift of absorption thresholds compared to reference data. Photocatalytic activities of all samples were probed under simulated Solar light on three model compounds: phenol, 4‐chlorophenol (4‐CP) and 2, 4, 6‐trichlorphenol (TCP). Pure TiO2 showed the highest photocatalytic activity in the case of phenol. However, pure ZrO2 and binary oxides showed higher photoactivity in degradation of 4‐CP and TCP. The activity of wide band‐gap semiconductors under simulated Solar light in photodegradation of phenol and its derivatives is most probably the consequence of formation of charge transfer complexes between pollutant molecules and semiconductors surface. 相似文献
45.
46.
Geler Zoltan Kurbalija Vladimir Ivanović Mirjana Radovanović Miloš 《Knowledge and Information Systems》2022,64(10):2797-2832
Knowledge and Information Systems - In the field of time series data mining, the accuracy of the simple, but very successful nearest neighbor (NN) classifier directly depends on the chosen... 相似文献
47.
The effect of temperature and wax content on the appearance of turbidity in sunflowerseed oil 总被引:1,自引:0,他引:1
J. Turkulov E. Dimić Dj. Karlović V. Vukša 《Journal of the American Oil Chemists' Society》1986,63(10):1360-1363
Turbidity in refined sunflowerseed oil, caused by the presence of waxes, is a frequent occurrence. As such, it is a special
problem in a number of countries where clear packaging is used for this oil. The application of cold test for the determination
of sunflowerseed oil clarity is not always satisfactory, as the negative cold test is not a guarantee that the waxes are completely
removed and that the oil will remain clear for a longer period. In this study, the threshold value for wax content which would
cause turbidity in refined sunflowerseed oil was determined. At the same time, the influence of cooling temperature and wax
content on the visible turbidity appearance rate was investigated. The results show that the turbidity threshold for the cold
test is 80 mg wax/kg oil, and that the rate of the visible turbidity appearance of the oil depends both on wax content and
cooling temperature. 相似文献
48.
Experimental and theoretical consideration of the factors influencing cationic pollutants retention by seashell waste
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49.
Olja D. Munitlak Ivanovic Mirjana T. Golusin Sinisa N. Dodic Jelena M. Dodic 《Renewable & Sustainable Energy Reviews》2009,13(8):2079-2087
Countries of SE Europe are at very beginning of planning of their development in accordance with theoretical concept of sustainable development. Sustainable development is defined as the basic imperative and the only model of development in a longer period of time. The basic indicators of sustainable development represent a very useful and quality way for measuring and monitoring the state of sustainable development, as in every country individually so as in the regions and globally as a whole. Values of the indicators of all four subsystems in observed countries are within expectation. Also the current level of development of every country separately is taken into account and in accordance to that it is defined the current position of any country in respect to its international requests. The special value is given by the comparison of obtained results of the state in the developed EU countries, according to which there is an impression of equal degree of sustainable development in France and Germany, whereas the data regarding the state of sustainable development in Greece and at Slovenia has been improved between two analysis. Taking into account the results of the previous and current research there is a clear need for regular observation of the state of every indicator individually but also the need to observe the relationship among them as a whole. The special attention needs to be given to the intensive monitoring of indicators of economic and ecological subsystem. The research showed, among other things, to the fragile relationship of values of indicators of economic and ecological subsystem, by which any change in values of one indicator consequently leads to the changes in the final result. Both conducted researches point to the fact that the value of the mentioned indicators changes at the fastest pace. 相似文献
50.