Redefinisanje prostora savremenog konteksta grada - kretanje i percepcija kao vidovi dostupnosti

The aim of this paper is research of the potential and redefining of space of the contemporary urban context, by recognizing movement and senses as principles of accessibility and affirmation of the neglected values of the city in regard to design aspects. A global context of networking transforms a modern city into processes of busy lifestyle, which neglect diversity and senses. Flows and networking, as the carriers of this context, despite their goal to create a connection between the global and the local and establish equality of all users, generate local separation and segregation, eliminating specific local traits and individual needs, thus neglecting individual units of space, social groups and subjects. The consequences of the city developing in this way are spatial fragments not connected to a network and not defined, and on the other hand neglected in a way that leads to specific environmental and sensory values, which under contemporary conditions propagate subjectivity, different impressions and effects. This spatial potential becomes recognized, distinguished and accessible through design methods and principles of inclusive design. The paper uses the methodology of the subject Access to All, a part of the Master studies programme at the Faculty of Architecture, as well as students' research on the topic of inclusion and equal accessibility of the city's potential through projects and design.Cilj rada je istraživanje potencijala i redefinisanje prostora savremenog urbanog konteksta, prepoznajući kretanje i čulnost kao principe dostupnosti i afirmacije zapostavljenih vrednosti grada kroz projektantske aspekte. Globalni kontekst umreženosti savremeni grad transformiše u procese ubrzanog načina života, kojima se zapostavljaju raznovrsnost i čulnost. Tokovi i umrežavanje, kao nosioci takvog konteksta, nasuprot cilju da ostvare vezu globalnog i lokalnog i uspostave jednakost svih korisnika, sa druge strane stvaraju lokalne separacije i segregacije, eliminišući lokalne specifičnosti, pojedinačne potrebe i tako zapostavljajući pojedine prostore, društvene grupe i subjekte. Posledica ovakvog razvoja grada su neumreženi i nedefinisani prostorni fragmenti, čija je zapostavljenost sa druge strane nosilac specifičnih ambijentalnih i čulnih vrednosti, koje u savremenim okolnostima afirmišu subjektivnost, drugačije doživljaje i efekte. Ovi prostorni potencijali postaju prepoznati, naglašeni i dostupni putem projektantskih metoda i principa inkluzivnog dizajna. Rad se oslanja na metodologiju predmeta Dostupnost za sve na programu Master studija Arhitektonskog fakulteta, kao i na studentska istraživanja na temu inkluzije i jednake dostupnosti potencijala grada kroz projektovanje i dizajn

Kozmetičke sirovine poreklom iz mora u proizvodima za negu kože

Sea water, salt and mud have been used for centuries in beautification treatments, but their active ingredients have become a recent challenge in formulating new cosmetic products. Cosmetic ingredients which originate from the sea, are mostly obtained from algae, microalgae, marine sponges, corals and microorganisms. Exopolysaccharides (EPS) are new cosmetic ingredients produced by marine micro-organisms. They are used to protect skin from harmful external influences, give it softness and minimize fine lines. Pseudopterosins, present in the extracts of corals, are used to soothe the skin, while marine sponges are one of the major alternative to animal-derived collagen. Algae have been the most researched group, with the greatest potential among different sources of marine ingredients. Carrageenan, agar, and alginates from algae act as humectants, thickeners and gelling agents. The active ingredients of algae extracts (polysaccharides, proteins, vitamins, minerals) could hydrate, minimize fine lines, protect the skin from UV radiation, decrease redness and cellulite.Although some widespread, native cow parsnips (Heracleum L. spp., Apiaceae) had broad medicinal and culinary applications throughout history, the knowledge about their volatile constituents is insufficient. This work investigates the composition and bioactivities of H. sphondylium L. (HSPH), H. sibiricum L. (HSIB) and H. montanum Schleich. ex Gaudin (HMON) essential oils. The composition was tested by GC and GC-MS. (Z)-β-Ocimene was the most abundant in HSPH (28.9%) and HMON (20.4%) root oils, while in HSIB root oil, β-pinene (26.2%), methyl eugenol (22.3%) and elemicin (25.6%) prevailed. Leaf and flower oils were dominated by various sesquiterpenes (germacrene D, β-sesquiphellandrene, (E)-β-farnesene and/or (E)-caryophyllene) and/or phenylpropanoids (apiole, methyl eugenol, elemicin and/or (Z)-isoelemicin). Octyl acetate (57.5-67.1%) was the main constituent of all fruit oils. The antimicrobial activity was screened by a microdilution method against eight bacteria and eight fungi. The strongest antimicrobial effect, in several cases better than the activity of antibiotics, was shown by HSPH (MICs = 0.12-3.30 mg mL-1) and HMON (MICs = 0.10-1.30 mg mL-1) flower oils against bacteria, and HSIB fruit oil against fungi (MICs = 0.15-0.40 mg mL-1). The MTT test revealed that the oils were not or weakly cytotoxic against human malignant HeLa, LS174 and/or A549 cells (except HSPH root oil; IC50 = 5.72-24.31 μg mL-1) and that tested oils were not toxic against human normal MRC-5 cells (at 200.00 μg mL-1). Significant activity observed against microorganisms that are the common cause of foodborne diseases, food contamination and/or hospital-acquired infections justifies certain traditional uses of the investigated plants and represents a good basis for further research of these Heracleum oils.Morska voda, so i mulj koriste se od davnina u tretmanima za ulepšavanje, ali se njihovi aktivni sastojci tek od nedavno koriste za izradu kozmetičkih proizvoda. Kozmetičke sirovine poreklom iz mora najviše se dobijaju iz algi i mikroalgi, mikroorganizama, sunđera i korala. Egzopolisaharidi su novije kozmetičke sirovine koje proizvode morski mikroorganizmi. Navodi se da oni štite kožu od štetnih spoljašnjih uticaja, daju joj mekoću i smanjuju fine linije. Ekstrakti mikroalgi deluju antioksidantno i podstiču sintezu kolagena tipa I. Ekstrakt korala sa pseudopterozinima se koristi za umirivanje kože, dok su morski sunđeri jedan od najvećih alternativnih izvora za dobijanje kolagena. Od svih sirovina poreklom iz mora, alge su najviše istražene i imaju najveći potencijal. Iz algi se dobijaju karagen, agar i alginati, koji se koriste kao humektansi, ugušćivači i gelirajuća sredstva. Aktivni sastojci ekstrakata algi (polisaharidi, proteini, vitamini, minerali) hidriraju kožu, smanjuju fine linije, štite kožu od UV zraka, smanjuju crvenilo kože, a koriste se i u kozmetičkim proizvodima za smanjenje celulita

Genotype x environment interaction of some traits in sunflower (helianthus annuus l.) Lines

The evaluation of genotype x environment interaction (GXE) is an important component of the selection process in multi-environment trials. The objective of this study was to analyze the GXE interaction for seed yield (SY), germination rate (GR), thousand seed weight (TSW) and protein content (PC) of 18 sunflower parental lines through the application of AMMI analysis, as well as to identify suitable sunflower parental lines with both high performance and high stability. Highly significant differences for SY, GR, TSW and PC were found for main effects (genotypes, years). For all investigated traits GXE interaction was also highly significant, suggesting a different response of genotypes across testing environments. Highest SY was shown by genotypes G12, G14 and G17. Most stable lines for seed yield were Gl, G2, G18 and G17. High stability in terms of GR showed the genotypes G3, G11 and G15, with average values higher than the general average. In the three-year experiment environment E3 was most stable for GR. Genotypes G2, G4, G5, G6 and G7 were stable for TSW. Similar average values and stability for TSW showed E2 and E3. The lines with the most stable reaction in the examined environmental conditions for PC were G7 and G10. The most stable environment for PC was E3

Supplementary material for: "Visible light promoted photoredox C(sp3)-H bond functionalization of tetrahydroisoquinolines in flow"

Full characterization data for all compounds.The supplementary material for: Filipović, A., Džambaski, Z., Vasiljević-Radović, D. G.,& Bondžić, B. P. (2021). Visible light promoted photoredox C(sp3)-H bond functionalization of tetrahydroisoquinolines in flow. Organic and Biomolecular Chemistry, Royal Society of Chemistry., 19(12), 2668-2675. [https://doi.org/10.1039/d0ob02582h]The published version of the article: [https://cer.ihtm.bg.ac.rs/handle/123456789/4494

Preparation of CaO/γ-Al2O3 catalyst for biodiesel fuels. The catalytic activity in relation to thermal treatment

A heterogeneous base catalyst (CaO/γ-Al2O3) for biodiesel production from sunflower oil was prepared by the impregnation method. The catalyst was characterized by means of MIP and XRD methods. The catalytic activity of the nitrate-derived CaO/γ-Al2O3 was determined in relation to the calcination temperature ranging from 425 to 500 °C. The reaction was carried out in a batch type of reactor equipped with a reflux condenser. The maximum yield of biodiesel of almost 95% was achieved with the catalyst calcined at 475 °C under the following reaction conditions: reaction temperature of 60 °C, methanol to oil molar ratio of 12/1, reaction time of 5 h