Darbe buvo tiriama lignino atliekų sorbcinė galia naftos produktams, jų pritaikymo biologiniam aplinkos valymui nuo naftos teršalų galimybė. Nustatyta, kad hidrolizuotas ligninas sorbuoja įvairius naftos produktus, yra netoksiškas angliavandenilius skaidančiam Arthrobacter sp. N3 štamui ir padidina dyzelino biologinio skaidymo grunte efektyvumą. Taip pat pastebėta, kad baltieji dobilai (Trifolium repens L.) gali augti net 2,0 % dyzelino užterštame grunte ir pagreitinti biologinį grunto išvalymą nuo naftos teršalų. Laboratorinėmis sąlygomis, naudojant hidrolizuotą ligniną, naftą skaidančius mikroorganizmus Arthrobacter sp. N3 ir baltuosius dobilus buvo sukurta kompleksinė užteršto naftos produktais grunto valymo technologija. Pirmame etape, taikant biodegradaciją naftą skaidančiais mikroorganizmais ir naudojant hidrolizuotą ligniną, po 9 savaičių, esant dyzelino koncentracijai 2,3 % smėlyje bei 2,3 ir 4,5 % molžemyje, buvo pasiektas 80,3 – 59,6 % grunto išvalymas. Antrame etape, papildomai užsėjus baltuosius dobilus, po 13 savaičių dyzelino koncentracija apvalytame grunte neviršijo leidžiamų grunto užterštumo naftos produktais normų. Ši kompleksinė grunto valymo technologija galėtų būti sėkmingai pritaikoma aplinkosaugoje valyti gruntą nuo naftos teršalų. / This study investigates the sorption capacity of lignin waste for oil products and the possibility of their application for biological cleaning the environment from oil pollutants. We determined that hydrolyzed lignin showed sorption capacity for various oil products, and there was no toxic effect on oil – degrading Arthrobacter sp. N3 strain. The results indicated that hydrolyzed lignin enhanced the biodegradation of diesel oil in clay and sand. Either the observes demonstrated that white clovers (Trifolium repens L.) was able to grew in soil polluted with diesel oil at concentration of 2 % and increased the level of biological clean up from oil pollutants. The complex technology of soil cleaning by using of hydrolyzed lignin, oil – degrading Arthrobacter sp. N3 strain and white clovers (Trifolium repens L.) was created at laboratory conditions. At the first stage, biodegradation of diesel oil was applied using Arthrobacter sp. N3 strain and hydrolyzed lignin, soil clean up level was 80,3 – 59,6 % after 9 weeks. At the second stage, white clovers (Trifolium repens L.) was used additional, the concentration of diesel oil decreased to the permitted level after 13 weeks. This technology of soil cleaning may be successful use for treatment of soil polluted by oil contaminants.

Darbo struktūra ir apimtis. Darbą sudaro įvadas, 3 dalys, išvados, iš viso 97 psl.. Pagrindinė darbo medžiaga aprašyta 63 puslapių, įskaitant 7 lenteles, 22 paveikslus, 11 priedų. Panaudotos literatūros sąrašą sudaro 70 šaltinių. Pirmoje dalyje „GENETIŠKAI MODIFIKUOTI PRODUKTAI IR PREKYBOS JAIS REGULIAVIMAS” nagrinėjamos šių produktų atsiradimo priežastys, pritaikymo tikslai. Aptariama genetiškai modifikuotų organizmų ir jų produktų atsiradimo įtaka rinkoms. Pateikiami prekybos šiais produktais teisiniai apribojimai. Antroje dalyje „GENETIŠKAI MODIFIKUOTŲ PRODUKTŲ PREKYBOS REGULIAVIMO POVEIKIS RINKOS DALYVIAMS LIETUVOJE“ nagrinėjami jau atlikti tyrimai vartotojų požiūriu į GMO ir GMP, remiantis jais suformuota naujo tyrimo metodika, pasiūlytas naujas hipotetinis modelis. Trečioje dalyje „EMPIRINIO TYRIMO REZULTATAI IR JŲ INTERPRETACIJA“ informacijos susisteminimas bei empirinių tyrimų analizė. / RIMKIENĖ, Indrė. (2011) Trade regulation of genetically modified products in terms of market participants. MBA* Graduation Paper. Kaunas: Kaunas Faculty of Humanities, Vilnius University. 97 p. S U M M A R Y The Master work analyses the genetically modified organisms (GMO) and products on the Lithuanian market. GMO and their products are not freely on offer on the Lithuanian market. It is because the market has not only the Lithuanian restrictions of trade, but also the EU. By performing the analysis on Lithuanian market participants attitude towards genetically modification of organisms, GMO and their products, we could expect and forecast the GMO status on the Lithuanian market. There are a lot of opinions about genetical modifications, but looking to the future GMO will be increment. In any case, it is very important to discover more about prospects of genetically modified products, their effects on human health, their consumption patterns and market participants attitude towards them. Final work of University Master Studies, 97 pages, 22 pictures, 7 tables, 11 appendix, 70 references, Lithuanian language. Key Words: genetically modified organisms, consumption of genetically modified products, trade regulation, market participants attitude. Research object – genetically modified products. Research aim – to determine Market participants (experts, traders and consumers) in the treatment of genetically modified products, trade regulation. Objectives: 1) to identify... [to full text]

ECDL produktų diegimo Lietuvos rinkoje galimybių įvertinimas. / The Research of new ECDL Products Introduction in the Lithuanian Market.

Pirmoje dalyje analizuojamos eksporto politikos formavimo teorinės prielaidos. Išskiriami valstybės ekonominiai tikslai plėtojant eksportą bei atskleidžiami įmonių eksporto motyvai. Taip pat atliekama eksportą įtakojančių veiksnių analizė, nagrinėjamos eksporto politikos planavimo prielaidos. Antroje darbo dalyje analizuojami Lietuvos narystės Europos Sąjungoje privalumai ir trūkumai, aptariami prekybos pokyčiai. Trečiojoje dalyje nagrinėjama kokią įtaką „Vičiūnai group“ eksportui padarė įstojimas į ES. Darbe buvo ištirti eksporto pokyčiai bei analizuojami įmonės vidiniai duomenys. Taip pat analizuojama, kokiomis skatinimo priemonėmis naudojasi tiriama įmonė, nustatoma kokie yra pagrindiniai šios firmos užsienio prekybos motyvai. Šiame skyriuje tikrinamos iškeltos hipotezės. Nagrinėjamas įmonės eksportas į atskiras rinkas bei eksporto pokyčiai pastaraisiais metais, pateikiami tyrimo rezultatai. Pabaigoje trumpai aptariamos pagrindinės Lietuvos eksportuotojų problemos, pateikiamos išvados ir rekomendacijos šia tema. Darbą sudaro 65 puslapiai. Darbe pateikiamos 6 lentelės ir 17 paveikslų, 3 priedai. / The main object is to research the export of Lithuanian companies to European countries, also, to research the most popular export stimulating instrumentalities and the ways of development and to analyze the changes in Lithuanian fish production export to European Union after Lithuania has joined it. Also, using “Viciunai group” export information and experience, to research what increases export and what decreases it, also to determine the biggest problems, which are blocking export to European Union countries and to show the ways of decisions. In the magistracy paper, using a sample of "Viciunai group“ the reasons, which are mostly stimulating or blocking company‘s export to European Union are researched. Using “Viciunai group” exports information and the experience, the changes in company‘s export after joining EU are analyzed. The meaning of Lithuanian export development ways to “Viciunai group” export development is also presented. The main company‘s export development motives are researched and company‘s export department‘s and export market‘s structure is analyzed. In the end of the paper there are conclusions and recommendations, corresponding to research results. The paper contains: 65 pages, 6 tables, 17 exhibits. 56 literature sources were used.

Tyrimo tikslas - nustatyti inovacijų diegimo perspektyvas medaus produktų gamybos srityje. Inovacijų diegimas yra vienas pagrindinių įmonės sėkmę lemiančių veiksnių, kuris padėtų išsilaikyti konkurencinėje aplinkoje. Lietuvoje dažnai naudojama inovacijų sklaida, perkami inovaciniai sprendimai, įrengimai, licencijos. Svarbiausia inovacinės veiklos valdymo problema - žema verslininkų kvalifikacija ir mažas jų aktyvumas dalyvaujant inovacinėje veikloje. Organizacijos narių kūrybiškumas, kompetencija ir motyvacija yra būtini įdiegiant inovacinius procesus. Atsivėrė galimybės verslo įmonėms naudotis ES struktūriniais fondais, su jų pagalba įgyvendinti inovacinius projektus. Tyrimo hipotezė - nauji medaus produktai su uogomis turės pakankamą paklausą, pasitvirtino. Atlikus tyrimą išaiškėjo, kad dauguma respondentų pirktų pradėtus gaminti naujus ekologiškus skanumynus su medumi. Tai reiškia, kad jie pasirengę mokėti iki 3 Lt už 100 g. Tačiau didelė dalis respondentų neturėjo nuomonės ar dera uogos su medumi. Tam reikšmės turėjo tai, kad maža dalis ragavo medaus - uogų produktų. Dauguma respodentų teigiamai įvertino teiginius apie medaus poveikį sveikatai. / Purpose of the survey - to determine the prospects for innovation in honey production. Innovation is one of the key determinants of success of the venture, which will survive in a competitive environment. Lithuania is often used for the diffusion of innovation, innovative solutions are purchased, equipment licenses. The most important innovation activities of the problem - the low skills and low business activity in the presence of their innovative activities. Organization of the creativity, competence and motivation necessary for the introduction of innovative processes. Opened up opportunities for businesses to benefit from EU structural funds, to help them implement innovative projects. Hypothesis - new products with honey berries will be sufficient demand, has been confirmed. The investigation revealed that the majority of the respondents purchased the introduction of a new green dainty with honey. This means that they are willing to pay up to LT 3 per 100 g. However, a large proportion of respondents had no opinion or is consistent with the berries with honey. This value is the fact that a small part of the tasting honey - berry products. Most respodentų welcomed the findings of the health effects of honey.

The goal of the dissertation is to carry out complex tests of biosorbents that absorb oil products and to analyse the sorbtion process using local raw materials for the elimination of the spilled oil products. Objectives of the paper: • to assess the sorption properties of materials used for the elimination of oil products; • to identify the optimal material for the production of a sorbent of local raw materials; • to carry out complex experimental tests of a sorption process; • to find out the physical parameters of sorbents of oil products; • to carry out experimental tests of water absorption; • to carry out tests of the efficiency of sorption off the water surface; • to find out the residual part of the material being sorbed; • to carry out experimental tests of the full capacity of sorption; • to carry out tests of thermal modification of biosorbents; • to find out the impact of sorbent fraction on the sorption properties; • to carry out experimental tests of cleaning of the polluted water with the help of biosorbents; • to perform a mathematical modelling of the sorption process.

The aim of this work is to collect, analyze and summarize information about prebiotics and probiotics using in producible dairy products in Lithuania, about features and quality of their consumption, production and labeling marking. Prebiotics and probiotics are mostly inserting into dairy products because it results their vitality. In process of this work was done written consumers quiz, sensual analysis of dairy products with prebiotics and probiotics, analysis of requests of labeling marking of those products according valid legislation. On purpose to find out if consumers have enough information about prebiotics and probiotics was preparing the questionnaire. During the poll it was aimed if consumers use products with prebiotics and probiotics. 50 Lithuanian residents were investigated. The data of the poll showed that consumers know about prebiotics and probiotics but not large amount of residents use those products. It is the reason of the deficit of information.-According valid legislation was done sensual analysis of yogurts: were evaluated sensual characteristics of yogurts and sensual descriptive- profiled analysis. Was formed the group of 5 estimators to valuate following characteristics: design, consistency, savour and smell. And was found out the average. During the sensual descriptive- profiled analysis consumers excluded 7 characteristics: sweetness, acidity, consistency, homogeneity, intensity of smell, intensity of savour, residual taste. The average of... [to full text]

Aim of study: to analyse the sensory analyses using to dairy products rating in Lithuania (law acts, assessors training, practical using in Lithuania). Tasks of study: to select and instruct assessors group to work by LST ISO 8586 – 1:1997. Sensory analysis. General guidance of the selection, training and monitoring of assessors. Part 1 : Selected assessors. To do descriptive analysis of dairy product (cheese) by LST ISO 4121:2004. Sensory analysis. Methodology. Evaluation of food products by method using scales. To make sensory profile of dairy product (cheese). Material and methods: the study’s was done at Food Safety and Animal Hygiene department in LVA and at Sensory Analysis Laboratory in KTU Food Institute. There were analysed 4 cheeses sensory analyses, done each of cheese comparable analysis and made profile. The assessors group were made from 7 students of LVA. This group selected in 2004 at KTU Food Institute and trained, but they didn’t have sensory analysis skills. At assessors screening was using these methods: ageusia, matching and ranking tests. At first assessors group was rating general cheeses appearance, odour and taste, consistency in 5 scoring. Then assessors group analysed the cheeses by earlier chosen and discussed attributes, used scales those attributes intensity to rate. From receive information were made sensory profile. To know consumers’ opinion about cheeses was used acceptability test. Results: the sensory analyses methods review showed, that... [to full text]

Darbe apibendrinami duomenys apie cezio-137 kaupimąsi dirvoje ir jo perėjimą į augalus bei gyvulio organizmą. Pateikti šio izoztopo pasiskirstymo ir kaupimosi įvairiuose gyvulių organuose bei audiniuose dėsniai, apžvelgti įvairūs metodai, mažinantys cezio-137 kaupimąsi ir greitinantys jo pasišalinimą iš gyvulių organizmo bei gyvulininkystės produktų. Tirtas pienas, mėsa, bulvės, grūdai ir geriamasis vanduo iš Šakių rajono. Buvo nustatomas 137Cs savitasis aktyvumas ir bendrieji alfa ir beta aktyvumai. Radiometriniai tyrimai atlikti radiacinės saugos centre. / We have summarized the data concerning accumulation of 137Cs in soil and the transition of the radionuclides to plants and animals. The presented survey gives some information about the distribution and accumuliation of 137Cs in different organs and tissues of animals about the possible methods of reducing the amount of radionuclides in the organism of animals and in products of animal origin. There was tested milk, meat, potatoes, grain and drinking water from Šakiai region. There was instituted the specific activity of 137Cs and general alpha and beta activities. The radiometric tests were performed in the Radiation Protection Centre.

The goal of the dissertation is to carry out complex tests of biosorbents that absorb oil products and to analyse the sorbtion process using local raw materials for the elimination of the spilled oil products. Objectives of the work: · to assess the sorption properties of materials used for the elimination of oil products; · to identify the optimal material for the production of a sorbent of local raw materials; · to carry out complex experimental tests of a sorption process; · to find out the physical parameters of sorbents of oil products; · to carry out experimental tests of water absorption; · to carry out tests of the efficiency of sorption from the water surface; · to find out the residual part of the material being sorbed; · to carry out experimental tests of the full capacity of sorption; · to carry out tests of thermal modification of biosorbents; · to find out the impact of sorbent fraction on the sorption properties; · to carry out experimental tests of cleaning of the polluted water with the help of biosorbents; · to perform a mathematical modelling of the sorption process.