► Resveratrol, total phenols and antioxidant potential in wines were examined. ► Effect of thermovinification and separation of pomace on four varieties were examined. ► Resveratrol content depends ...on variety, no obvious correlation with technology. ► Thermovinification increased total phenols and antioxidant potential. ► Correlation was observed between total phenols and antioxidant potential.
In this paper, the influence of winemaking techniques and cultivars on the resveratrol content, total phenolic content and antioxidant potential of red wines was studied. Wines were made from the cultivars Merlot, Cabernet Sauvignon, Pinot Noir and Prokupac. Applied winemaking technologies included thermovinification and separation of must from pomace. The analysis of trans- and cis-resveratrol in wines was performed by HPLC, while the total phenolic content and antioxidant potential was determined by spectrophotometric methods. The total resveratrol content in analysed samples ranged from 0.35 to 4.85mg/l; Merlot wines had the highest average resveratrol content, while the lowest was found for native cultivar Prokupac. Although the resveratrol content depended on grape variety, correlation between the winemaking technology applied and the resveratrol level in wines was not observed. The total phenolic content (TPC) varied from 544.4 to 1410.4mg/l expressed as gallic acid equivalents, and the antioxidant potential, assayed by DPPH in terms of SC50 (mean scavenging concentration), ranged from 0.58 to 2.91μl/ml. Obtained results showed that thermovinificated wine samples had higher amount of phenolic compounds. Significant negative correlation was observed (p<0.05) between the total phenolic content and SC50, but there was no significant correlation (p>0.05) between the resveratrol content and SC50 or TPC. This study could contribute to the establishment of optimal conditions for producing red wines which contain more beneficial phenolic compounds.
Аутор у раду настоји да укаже на континуитет физичког кажњавања дјетета који траје од првих цивилизација па до модерних времена. Од древних цивилизација, од почетака писмености, тјелесне казне су ...неодвојиви пратилац дјечјег живота. Прво помињање дјетета везано је за његово тјелесно кажњавање. Аутор наводи аргументована противљења значајних педагога оваквом поступању са дјецом. Указује и на културолошке прилике које у великој мјери одређују благост односно строгост у поступању са дјецом. Истакнуто је да физичко кажњавање дјетета може бити и ритуалне природе, али и да се у српској култури васпитање и кажњавање често поистовјећују.
Тhe author tries to point out the continuity of physical punishment of a child that lasts from the first civilizations to modern times. From ancient civilizations, from the beginnings of literacy, ...corporal punishment has been an inseparable companion of children’s lives. The first mention of a child is related to his corporal punishment. The author states the argued oppositions of important pedagogues to this treatment of children. Important thinkers and pedagogues (Quintilian, Montaigne, Neil) strongly opposed the application of corporal punishment of children, believing that it was the wrong educational procedure. In many cultures, punishing children is ritual in nature. The roots of such customs go back to the distant past and were undertaken because they were believed to be able to promote the growth and development of the child. Also, there were prohibitions on which objects children should not touch, all in order to prevent the transfer of negativism from those objects to the child. Studies indicate that the use of corporal punishment is viewed differently in different areas.The position of the child in the past has not been easy. Children were punished, abused, trafficked and treated inhumanely. Such practices have been present since ancient civilizations, through the Middle Ages, and even today in some countries physical punishment of a child survives in some forms. The period of humanism and the Renaissance brings different views on the child and the nature of children. This period brings an increased interest in children’s individuality, emotionality and authenticity. In all epochs, there are authors who argue against corporal punishment of a child. In Serbian traditional culture, physical punishment is a common educational technique, and punishment and upbringing in patriarchal culture have often been equated. Important pedagogues in the 20th century are of the opinion that corporal punishment is harmful and that it is not in accordance with the humanistic concept of education.The existence of physical punishment of a child has been noticed in the Serbian culture and history of school and educational circumstances. This kind of treatment of a child dates back to the distant past. The phenomenon of ritual punishment of a child was also noticed. Ritual punishment of a child is associated with mythical-magical actions aimed at promoting the growth and development of the child. At the beginning of the 19th century, due to the observed cruel treatment of children at school, the educational authorities in the Principality of Serbia tried to limit corporal punishment, which resulted in the adoption of written regulations and instructions. Proponents of Herbartian pedagogy, which has prevailed in our area for almost a century, allow the existence of punishment in school practice, but also the physical sanctioning of student behavior. Personal histories of individuals, personal narratives, show that corporal punishment of a child ‘s life in our area and during the twentieth century.
The paper deals with the complexity of growing up as a theme within the poetry of Dragomir Djordjević, whose poetic oeuvre is one of the most important poetic ones intended for children in Serbian ...poetry of the second half of the twentieth century. Djordjevic’s poetry shows a distinct artistic awareness of the problems of the child in the modern world, which makes it extremely modern and challenging to interpret.The author notices three thematic-motive circles in Djordjevic’s poetry, which are connected with the complexity of a child’s growing up. First, there are songs in which the lyrical subject sings about the corporal punishment of the child, then about the ‘pedagogization’ of childhood, and about the emotionally endangered child. The author analyses a series of poems in which the physical punishment of a child is sung about. Physical punishment of a child is present in many cultures, although it can also be of a ritual nature. In Djordjevic’s songs, corporal punishment is carried out by adults over children with the aim of disciplining them and obeying the norms of the elderly. Education has been turned into one of the many activities that are planned, realised and evaluated, which leads to the development and improvement of cognition, but also to the stifling of creativity, imagination and play. Education has been torn out of the context of life and turned into a separate activity. From education through life, we have come to the conclusion that education is an activity of vital importance.In this paper, we have analysed the following poetic texts in which Djordjevic expresses an artistic critique of the educational procedure of physical punishment of children: ‘Little family song’, ‘Impossible song’, ‘Dad’s song’ and ‘Now I will tell you’..Technological advances and conformist lifestyles have led to parental preoccupation, and from the desired age of child we have the age of professionals dealing with children. Dragomir Djordjevic’s songs, which register the growing appearance of a lonely child, a child who hangs out with a limited circle of friends, are ‘Anka’ and Song for enjoyment’.Separating upbringing from the life context has created numerous psychological difficulties in the upbringing of modern children. A child’s difficulties shifted from existential to psychological ones. The pedagogy of childhood is at the centre of many problems of the modern child. It implies a pronounced segregation of the world of childhood and the world of adults, as well as the placement of children in safe havens - schools. Pedagogization also means the separation of a separate ‘children’s world’, which is protected from potentially bad environment. Dragomir Djordjevic’s poetic texts in which the artistic awareness of the difficulties caused by the pedagogy of childhood are expressed are: ‘I was a happy child’, ‘The bell rang again’, ‘Hey, how could ‘“, ‘It is not easy to be a child’.Dragomir Djordjevic’s poetry can help a young reader to cope more easily with parental punishments, with the problems imposed on them by school in the form of unbalanced demands, as well as with the emotional difficulties that accompany everyprocess of growing up. Djordjevic’s verses can help the reader to see that they are not alone in these temptations, and that others are going through similar problems.
У раду настојимо да представимо суштинске одлике васпитања у српској традиционалној култури. Одлике васпитања у српској традиционалној култури приказали смо кроз три аспекта. Навели смо најзначајније ...обичаје који су присутни у српској традиционалној култури, а везани су за дијете и дјетињство. Анализиране су одлике игре, њено мјесто и улога у традицијској култури Срба. Суштинске одлике васпитања у нашој култури огледају се у поступном увођењу дјеце у радни процес, учешћу дјеце у привређивању заједнице, заједничкој бризи о дјеци, старању о томе да задаци повјерени дјеци буду усклађени с њиховим узрастом и способностима.
Current research and documents on urban development emphasise the links between economic growth and planning strategies, making urban space an asset of the contemporary market economy. The analysis ...of development trends in post-transitional cities shows numerous similarities to the Asian concept of developmental cities. This study examines current urban development strategies in the city of Novi Sad (Serbia), particularly focusing on trends in housing projects, which are the major contributors to the production of urban space. The housing policy in the city, spanning from urban reconstruction after WWII until the present, is comprehended through statistical data on construction activity, taken as an indicator of change in urban politics and the general concept of city development. The major change in this concept is the weakening of the connection between city population growth and apartment building production. As a result, human needs are no longer the primary motive for apartment construction. The comparison, analysis, and conclusions based on the interpretation of the indicators highlight the necessity for rethinking present urban practises in order to combat the continual process of degrading the quality of life in the city.
Рад се бави сложеношћу одрастања као темом у оквиру поезије Драгомира Ђорђевића, чији пјеснички опус представља један од најзначајнијих пјесничких опуса намијењених дјеци у српској поезији друге ...половине двадесетог вијека. Ђорђевићева поезија показује изразиту умјетничку свијест о проблемима одрастања дјетета у савременом свијету, што је чини изразито модерном и изазовном за тумачење. Аутор уочава три тематско-мотивска круга у Ђорђевићевој поезији која су повезана са сложеношћу одрастања. Најприје, ту су пјесме у којима лирски субјект пјева о тјелесном кажњавању дјетета, затим о „педагогизацији“ дјетињства, те о емоционално угроженом дјетету. Аутор анализира низ пјесама у којима је опјевано физичко кажњавање дјетета. Физичко кажњавање дјетета присутно је у многим културама, мада оно може бити и ритуалног карактера. У Ђорђевићевим пјесмама физичко кажњавање спроводе одрасли над дјецом са циљем дисциплиновања и покоравања нормама старијих. Васпитање је претворено у једну од многобројних дјелатности која се планира, реализује и вреднује што доводи до развоја и унапређења когниције, али и гушења креативности, маште и игре. Технолошки напредак и конформистички стилови живота довели су до презаузетости родитеља, те од прижељкиваног вијека дјетета имамо вијек професионалаца који се баве дјецом. Издвајање васпитања из животног контекста створило је бројне психолошке тешкоће у одрастању савремене дјеце.
Предмет истраживања у овој докторској дисертацији је анализа историјског тока модернизацијског процеса међуратног и послератног периода 20. века и његове рефлексије на урбани простор Новог Сада. ...Дубинским истраживањем кључних простора насталим у процесу модернизације, као и разумевањем свих механизама који су га обликовали, можемо препознати потенцијал ових простора да активно учествују у трансформацији савременог града. Заједничка раван у којем се групише дубинско разумевање модернистичког простора и његовог потенцијала инструментализације у савременом тренутку дефинише се кроз појам модернизацијски метакод.Он представља суштинску индентификацију модернистичког простора с модернизацијским потенцијалом, а који се успоставља кроз вредносне критеријуме образложене у овом раду. Дубинским разумевањем модернистичког простора можемо позитивно утицати на друштвену перцепцију овог значајног елемента наше урбане средине. Све то би допринело и бољем разумевању целовите слике историје урбаног развоја Новог Сада, а самим тим би се створила и квалитетнија основа за промишљање будућег развоја града.
This paper deals with the impact of two fining agents (bentonite and gelatine) on the coloured matters of young red wines Vranac, Pinot Noir and Gamay Noir. Both agents caused decrease in these ...substances. The effect is more intensive with the dose of bentonite of 1 g/L, but the variability depends on variety. Higher decrease was found in the colour intensity, coloured anthocyanins and polymers (up to 44 %), but lower in the colourless anthocyanins (up to 20 %). The intensity of red and blue colours decreases, while that of yellow colour increases. The use of bentonite in dosages higher than those recommended may cause the wine to obtain more pronounced »brick red« colour (the colour tint increases while the value of the spectrum form decreases). Fewer changes occurred in the coloured matters after treating the wine with gelatine. The colour intensity, colourless and coloured anthocyanins showed a decrease of up to 10 % and polymers of up to 16 %. The intensity of yellow colour decreases, while that of red increases as well as the ΔA/% value.
GPS is currently the main Global Navigation Satellite System. GLONASS, the Russian GNSS, became fully operational few years ago. Other GNSSs will become soon available and a new generation of low ...cost receivers can take advantage all the systems to improve accuracy or robustness in a challenged environment. Such receivers need performant antennas and RF front-ends. This paper presents a review of research work on GNSS antenna technologies carried out at DRDC Ottawa Research Centre in collaboration with several universities.
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