Referatai, kursiniai, diplominiai

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Motyvacinis laiškas, siųstas į Anglijos universitetus.
Anglų kalba  Rašiniai   (2 psl., 13,44 kB)
In Construction Materials Skills class we are trying our hand at a variety of different basic construction materials skills ranging from bricklaying to masonry, to carpentry, to painting, to plumbing, to sheet metal, to hot metal. The last six weeks I was learning bricklaying and masonry skills. In this report I will be writing about bricklaying and masonry skills I learned.
Statyba  Analizės   (7 psl., 3,1 MB)
SCHOOL SUBJECTS
2011-05-08
There are many subjects and many teathers at school. Every subject is important for teather, which he teathes. But sometimes some subjects are not important for studens. Senior pupils are decided what they are going to study, and decided which subjects are the least important, so they can renounse some subjects. I am going to speak about the subjects which I am studying.
Anglų kalba  Kalbėjimo temos   (1 psl., 6,45 kB)
darbas apie svietimo finansavima
Vadyba  Referatai   (13 psl., 23,79 kB)
Šiandieniniame gyvenime mes gana dažnai mes susiduriame su agresyviai nusiteikusiais žmonėmis. Tai ypač ryškiai pasireiškia jaunimo tarpe. Yra labai daug šitą nulemiančių veiksnių. Žmogaus agresyvumas priklauso tai bendravimo klasei, kuri gali būti suprasta tik išnagrinėjus daug mokslinių disciplinų-natūralių ir socialinių. Taip remiantis visa eile natūralinių mokslų-biologija, biochemija, genetika ir t.t,buvo padarytos išvados leidžiančios pradėti agresyvumo gilesnį tyrimą. Čia nemažai reikšmės turi ir socialiniai mokslai, nes agresyvumo įsivaizduoti kur nors kitur nei pačioje visuomenėje, paprasčiausiai neįmanoma, kaip ir negalima paaiškinti pačios visuomenės, nežinant agresyvaus elgesio įpatumų ir jį sukeliančių veiksnių.
Kita  Referatai   (4 psl., 13,31 kB)
komunikacijos
2011-02-27
1. Internetas ir studijos 1.1. Interneto ryšio paslaugos 1.2. Interneto informacinės paslaugos 2. Elektroninės bibliotekos 3. Distancinis (nuotolinis) mokymas 3.1. Nuotolinis mokymas Lietuvoje 4. Kursinių darbų pirkimo ypatumai
Informatika  Kursiniai darbai   (17 psl., 35,51 kB)
63 anglų topikai
2010-05-31
BALANCED DIET, CINEMA, CRIME, ENVIRONMENT, EUROPEAN UNION & NATO, FOREIGN LANGUAGES, HISTORY OF CHRISTMAS, JUNK FOOD, LITHUANIA IN 50 YEARS’ TIME, MASS MEDIA, PROFILE EDUCATION, SMOKING & DRUGS, SPORT,TECHNOLOGY DEVELOPMENT, TRANSPORT....
Anglų kalba  Kalbėjimo temos   (42 psl., 53,24 kB)
Dear Sir or Madam, Although I had never left my native country and saw other places, I have always been interested in other cultures, the way people are thinking and what they are doing to make the world better place to live. Since my early age, this interest spread in all over my mind, so after many researches and thinking I found out that Bachelor's Degree in International Management program in Aarhus University - Institute of Business and Technology of Denmark would be the best choice for my further studies. This program will give me valuable knowledge on how to deal with issues among others like globalization, international marketing and global supply chain management. Also I have some arguments that I would be a relevant candidate for Aarhus University.
Anglų kalba  Pagalbinė medžiaga   (1 psl., 4,48 kB)
Foreign languages
2010-04-22
I know two foreign languages, which are : English and Germany. I think that learning languages is different from learning other subjects, for example if you are doing something in other country, you need to know language before learning other subjects. I think that knowing any foreign language is more difficult,than knowing the math, physics, or biology,because,all the facts, all the formulas are the same in the world,but the languages are different not only with its grammer,but also with the structure,spelling and writting. In the future i would like to learn some russian. I am also planning a holiday for next summer in the russia,so if I learn a bit of russian ,so it will help me to communicate with others there.
Anglų kalba  Kalbėjimo temos   (1 psl., 3,26 kB)
Kolokacijos - tai žodžių junginiai, dažnai pasitaikantys sakytinėje ir rašytinėje kalboje, sukuriantys naują semantinę reikšmę ir skirstomi pagal savo funkciją ir sandarą. Kaip ir kiti kalbos vienetai, verčiant yra transformuojamos naudojant pagrindinius vertimo trasformacijų tipus – perkėlimą, pakeitimą, įterpimą ir praleidmą. Šio darbo tikslas – išrinkti kolokacijas, sudarytas iš veiksmažodžio ir daiktavardžio analizuojant Europos Sąjungos dokumentus ekologijos tema, pastebėti ir analizuoti kolokacijų vertimo transformacijas. Darbo uždaviniai – apžvelgti įvairių autorių teorinius požiūrius, susijusius su darbo objektu, pateikti asmeninę sampratą, apžvelgti transformacijų dėsningumus ir susisteminti bei apibendrinti tyrimo duomenis.
Kita  Kursiniai darbai   (17 psl., 52,89 kB)
Purpose: to analyze the changes of women’s roles and education, to review critical attitude to the book “The Mill on the Floss”. Mary Ann (Marian) Evans (1819 –1880), better known by her pen name George Eliot, was an English novelist. She was one of the leading writers of the Victorian era. Her novels, largely set in provincial England, are well known for their realism and psychological insight. She used a male pen name, she said, to ensure that her works were taken seriously. An additional factor may have been a desire to shield her private life from public scrutiny and to prevent scandals attending her relationship with the married George Henry Lewes. She was educated at home and in several schools, and developed a strong evangelical piety.
Anglų kalba  Analizės   (20 psl., 513,96 kB)
Stresas darbe
2010-02-01
Tikriausiai ne vienam buvo taip, kad gyvenimas papilkėjo, viskas tapo nemiela. Ar pastebėjote, kad elgiatės ne taip, kaip norėtumėte, pasakote tai, ko visai nenorite pasakyti...? Tokios kitų ir savęs ignoravimo bei pykčio būsenos žalingos savijautai, darbingumui ir net sveikatai.
Psichologija  Kursiniai darbai   (10 psl., 17,15 kB)
Šie metodai turi labai lėtą konvergavimą, bet teoriškai jie gali įveikti vietinį minimumą (local minima.) Kitas trūkumas yra tas, kad vienas turi valdyti daugybę vidinių kintamųjų (kiekvienam svoriui nustatyti triukšmo periodus), kas nėra labai efektyvu. Arba apibrėžti tik išorinius kintamuosius - tokius kaip įėjimo signalas (input), norimas signalas ir žingsnio dydis. Iš pragmatiškos požiūrio pusės labai pageidaujami būtų taip vadinami on-line (tiesioginiai) algoritmai, t.y. algoritmai, kur atskiram pavyzdžiui svoriai kaskart būtų atnaujinami. Bet žvelgiant iš (annealing) modeliavimo pusės į stochastinę on-line atnaujinimo metodų prigimtį , jų realizavimas nebūtų efektyvus. Dėl šių priežasčių bus bandoma atlikti tokį eksperimentą: pridėti triukšmus prie norimo signalo ir eksperimentiškai ištirti tokios procedūros privalumus. Triukšmas taip pat buvo naudojamas gradiento perdavimo (descent) procedūrose. Holmstrom išanalizavo statinio BP algoritmo [Holmstrom and Koistinen, 1992] apibendrinimo galimybę, kuomet atsitiktinis triukšmas įvedamas į išorinius signalus. Šie bandymai parodė, kad apibendrinimas gali būti pagerintas naudojant bandomuosiusose (training) duomenyse papildomus triukšmus. Matsuoka pademonstravo, kad ir triukšmo įvedimas į vieną įėjimo signalą gali pagerinti apibendrinimą (generalization) [Matsuoka, 1992]. Abu autoriai susikoncentravo tik ties tinklo apibendrinimo galimybe, tačiau jie nenagrinėjo triukšmų poveikio mokymosi greičiui ir išėjimo iš local minima galimybės. II Mokymosi su papildomais triukšmais atitinkamame signale analizė II.1 Klasikinis stebimas mokymasis Šioje dalyje kaip mokymosi sistemos prototipas yra naudojamas daugiasluoksnis perceptronas (perceptron) (MLP) su dviem lygiais. Tačiau išvados gali būti atvaizduojamos atsikartojančiose topologijose. Šiame tinkle, xk aprašo iėjimo vektoriaus vieną elementą; yi yra išėjimo lygio i-tasis išėjimas; Wij nusako svorius tarp paslėpto ir išėjimo sluoksnių; Vjk yra svoris tarp įėjimo ir paslėpto sluoksnio; ir Pj nusako paslėpto sluoksnio aktyvavimą. Pateiktas čia apmokymo algoritmas - tai atgalinio mokymo (backpropagation) (BP) algoritmas [Rumelhart et al, 1986]. Tegul di(t) žymi kelis norimus išėjimo neurono i laiko momentu t atsakymus, kur t yra diskretaus laiko indeksas. Galima apibrėžti klaidos signalą, kaip skirtumą tarp norimo atsakymo di(t) ir turimo atsakymo yi(t). Tai nusakomo (1) formulė: Pagrindinis mokymosi tikslas yra minimizuoti kainos funkciją, kurią nusako klaidos signalas ei(t), taip, kad turimas kiekvieno išėjimo neurono atsakymas tinkle statistikine prasme artėtų prie norimo atsakymo. Kriterijus naudojamas kainos funkcijai yra Vidurkio-Kvadrato-Klaidos (Mean-Square-Error) (MSE) kriterijus, apibrėžiamas kaip klaidos kvadrato sumos vidurkio-kvadrato reikšmė [Haykin, 1994]: Kur E yra statistikinis tikimybės operatorius ir sumuojami visi išėjimo sluoksnio neuronai (i=1,…,M). Kainos funkcijos J minimizavimas atsižvelgiant į tinklo parametrus lengvai g.b. formuluojamas gradiento mažinimo (gradient descent) metodu. Šios optimizavimo procedūros problema yra ta, kad jai reikia žinių apie neapibrėžtų procesų, generuojančių pavyzdžius, statistikines charakteristikas. Praktiškai tai gali būti apeita, optimizavimo problemai surandant artimą sprendinį. Klaidos kvadratų sumos momentinė reikšmė (Instantaneous value of the sum of Squared Errors) (ISE) yra pasirinkimo kriterijus [Haykin, 1994]: Po to tinklo parametrai (svoriai) yra pritaikomi ε(t). Faktiškai ši procedūra vadovaujasi taip vadinamu LMS algoritmu, kuomet svoriai yra atnaujinami kartu su kiekvienu pavyzdžiu [Widrow and Hoff, 1960]. II.1 Mokymasis su norimu triukšmingu signalu Vietoj to, kad svorių pritaikymui naudoti norimą signalą di(t), kaip norimas signalas išėjimo neuronui i imamas naujas signalas di(t)+ ni(t), kur ni(t) yra triukšmo periodas. Šiam triukšmo periodui priskiriamas nulinės reišmės baltas triukšmas su σ2 pokyčiu (variance) , nepriklausančiu nei nuo įėjimo signalo xk(t) nei nuo norimų signalų di(t). Neapibrėžtas triukšmo perdavimas yra priskiriamas Gauso ar vienarūšiam perdavimui. Čia norima įrodyti, kad šis naujas norimas signalas neįtakoja galutinės svorių reikšmės statistikine prasme. Tai užtikrina, kad nauja savybė sprendžia originalią optimizavimo problemą. Turint naujus norimus signalus, MSE (4) lygties gali būti perrašyta taip: Nėra sunku įrodyti [Richard and Lippmann 1991; White, 1989; Haykin, 1994], kad (4) lygtis yra lygi Kur ‘|’ simbolis žymi sąlygines galimybes (probabilities), ir 'var' yra kitimų (variance) sutrumpinimas. Pastebėkite, kad antras periodas dešinėje (5) lygties pusėje prisidės prie bendros klaidos J ir koks ir bebūtų mokymosi progresas, jis neįtakos galutinės svorių reikšmės, kadangi jis nėra tinklo svorių funkcija. Optimali svorių reikšmė yra apsprendžiama tiktai pirmo (5) lygties periodo. Kuomet triukšmas yra nulinės reikšmės baltas triukšmas ir jis nepriklauso nei nuo norimo, nei nuo įėjimo signalų, mes turime (6) lygtis rodo, kad triukšmas iš lygties, kuri apibrėš galutines svorių reikšmes, dingsta, taigi mokymassi su norimo triukšmo signalu duos rezultatų, originalios optimizavimo problemos sprendimo prasme, t.y. be triukšmo pridėjimo prie norimo signalo. (learning with the noisy desired signal will yield in the mean the solution for the originaloptimization problem, i.e., without the noise added to the desired signal.) Reiktų konstatuoti, kad ši išvada galioja visoms architektūrų rūšims.Atlikimo funkcijai apibrėžti reikalingi tik išoriniai matavimai (MSE), ir tai nėra susiję nei su topologija nei su kainos funkcijos apibrėžimo būdu (statiniu ar kintamu). Nors šis sprendimas yra patenkinamas, reikia prisiminti, kad mus domina on-line algoritmas, kur yra mokymosi dinamika, t.y. kaip mokymosi progresas yra veikiamas triukšmų. II.3 On-line algoritmas mokymuisi veikiant norimam triukšmingam signalui Reiktų pažymėti, kad atliekamos, modifikacijos, jokiais būdais neveikia atgalinio mokymosi algoritmo realizacijos, kadangi yra modifikuojamas tik signalas, kuris yra įvedamas kaip norimas rezultatas. Taigi, siūlomos modifikacijos gali būti taikomos dar neegzistuojančioms modeliavimo sistemoms. Svarbi problema, kaip modeliavimo metu valdyti triukšmų kaitą (variance). Dėl to tolimesniame skyriuje bus apžvelgiama tiukšmų įtaka momentiniam gradientui. II.4 Norimo triukšmingo signalo gradiente analizė. Svorinio vektoriuas pritaikymo statiniame BP algoritme formulė, tiklui atvaizduotame 1 pav. norimame signale be triukšmų yra [Hertz et al.,1991] Svoriams tarp paslėpto sluoksnio ir išorinio sluoksnio, ir Svoriams tarp iėjimo sluoksnio ir paslėpto sluoksnio, kur ŋ yra žingsnio dydis. Su triukšmingu norimu signalu, ISE (3) lygties tampa: Lygtyse (7) ir (8) įrašant naują reikšmę εnoisy(t), gausime lygtis Palyginus lygtis (7) su (10) ir (8) su (11) daroma išvada, kad triukšmo pridėjimo prie norimo signalo poveikis, tai extra stochastinio periodo svoriniame vektorių taikyme įtraukimas, kas gali būti modeliuojama kaip pridėtinis momentinio gradiento triukšmas (pertirbation) betriukšminiam atvejui. Stochastinio periodo bendra forma Kur N(t) yra veiksmo funkcija gauta pakeitus originalią klaidą d(t)-y(t) įvestu triukšmu n(t). Panagrinėkime papildomų periodų (extra terms) statistines savybes (10) ir (11) lygtyse ir pastebėkime kaip jos veikia svorinių vektorių statistiką. Bet pirmiausia, apibrėžkime atsitiktinius kintamuosius: Jeigu atsitiktiniai kintamieji ir nepriklauso vienas nuo kito, ir g ir f funkcijos yra Borelo funkcijos, tuomet f ir gtaip pat yra nepriklausomos [Feller, 1966]. Realiausios funkcijos f(x) įskaitant sigmoido funkciją, plačiai naudojamą neuroniniuose tinkluose yra Borelio funkcijos. Taigi, galima daryti išvadą, kad (10) ir (11) lygtyse triukšmas n(t) nepriklauso nuo O taip pat ir nuo Todėl gali būti užrašytos papildomų periodų (extra terms) tikimybės ir Jų kitimas (variance) ir Iš (14) ir (15) lygties galima daryti išvadą, kad nulinės reikšmės atsitiktinis triukšmas norimame signale nedaro įtakos svoriniams vektoriams, taigi pagrindinė papildomo stochastinio periodo (extra stochastic term) svorio atnaujinimo reikšmė yra nulis. Iš (16) ir (17) lygties daromos dvi svarbios išvados: triukšmas pridėtas prie norimo signalo veikia svorio atnaujinimo kitimą proporciškai kiekvieno svorio jautrumui. Tai reiškia, kad atskiro triukšmo šaltinis išėjime yra išverčiamas į skirtingus triukšmų stiprumus kiekvienam svoriui. Antra, žingsnio dydis arba išorinio triukšmo šaltinio kitimas valdys papildomų periodų (variance of the extra terms) svoriniuose vektorių prisitaikymo formulėse kitimą, gaunamą pridedant triukšmą prie norimo signalo. Pastebima, kad, kai = 0 arba triukšmo kitimas yra nulis, tuomet stochastinis periodas (stochastic terms) išnyksta - lieka tik originalus svorio atnaujinimas (t.y. sprendžiama originali optimizacijos problema). Šie aspektai ir idėjos gautos iš globalios optimizacijos pateikia empirines taisykles išorinių triukšmų šaltinių valdymui, gaunat reikšmingus rezultatus. Modeliavimo pradžioje norėtųsi svoriams uždėti atsitiktinius trikdžius (perturbation), tam, kad būtų leista algoritmui pabėgti iš vietinio minimumo (local minima.). Tačiau artėjant prie adaptacijos pabaigos trikdžių (perturbation) kitimas turi būti sumažintas iki nulio taip, kad svoriai galėtų pasiekti reikšmes duotas originalios optimizacijos problemos. Toliau bus naudojamas (annealing) tvarkaraštis, pasiūlytas Moody [Darken, Chang, and Moody, 1992] Kur o yra inicijuojamo žingsnio dydis, c yra paieškos laiko konstanta, ir NI - iteracijos numeris. Šių konstantų reikšmės turės būti apibrėžtos eksperimentiškai, kadangi jos priklauso nuo problemų. III Modeliavimo rezultatai Patvirtinant anksčiau atliktą analizę, modeliavimo rezultatai bus pateikiami dviem pavyzdžiais. Vienas jų naudoja dviejų-lygių MLP, taip vadinamos lygiškumo problemos (parity problem), kuri buvo pademonstruota vietinio minimumo (local minima) atveju, pažinimui [Rumelhart et al, 1986]. Iš modeliavimo rezultatų bus matyti, kad mokymasis labiausiai gali būti pagerintas naudojant numatytą metodą (proposed approach) ir globalų minimumą, pasiektą statistikine prasme. Kitas pavyzdys naudoja dinaminį neuroninį tinklą TDNN [Waibel et al., 1989] laiko signalų modeliavimui. Antro modeliavimo rezultatai taip pat patvirtina ankstesnę analizę. III.I Eksperimentai su MLP Spresime 3 bitų lygiškumo problemą. Tinklo dydis 3-3-1, t.y. 3 įėjimo neuronai, 3 paslėpti neuronai, ir 1 išėjimo neuronas. Netiesiškumas (nonlinearity) yra logistinė funkcija. Tiesioginis atgalinis mokymas (backpropagation) yra naudojamas abiem atvejais. Buvo pridėtas Gauso (Gaussian) triukšmas su  =0.001 prie norimo signalo ir parinkti atitinkami parametrai 18 Lygtyje: c= 500 ir o= 0.3. Rezultatai parodyti 2 paveikslėlyje. Stora linija vaizduoja mokymasi su triukšmingu norimu signalu, o punktyrinė linija - su originaliu norimu signalu. Šis pavyzdys rodo, kad mokymasis artėja prie lokalaus minimumo, (local minimum) kuomet naudojamas originalus norimas signalas, bet naudojant triukšmingą norimą signalą mokymasis pasiekia globalų minimumą (global minimum) . Svarbu pabrėžti, kad mokymasis su originaliu signalu, naudoja pastovų žingsnio dydį, kai tuo tarpu signalo su triukšmais žingsnis yra gaunamas iš (18) lygties. Naudojant skirtingus žingsnio dydžius ir skirtingus pradinius (initial) svorius, buvo pasiekti panašūs rezultatai. Tam, kad patvirtinti šio algoritmo konvergavimo galimybę, buvo remiamasi Monte Carlo modeliavimai su 100 bandymu. Rezultatai pavaizduoti 3 Paveiksle, kur punktyrinė linija yra 100 veiksmų rezulatai originaliam signalui, o stora linija - 100 veiksmų rezulatatai triukšmingam signalui. Šiame eksperimente, svoriai yra parenkami atsistiktinai, o žingsnio dydis o atsitiktinai parenkamas iš intervalo [0,1, 0,7]. Kuomet globalus minimumas (global minimum) yra 0, tuomet yra lengva paskaičiuoti reikšmę ir pokytį (mean and variance) 100 galutinių klaidų, kurios pateiktos 1 Lentelėje. Dar daugiau, mokymasisi su triukšmingu signalu laike 99% priartėjo prie globalaus minimumo, o su originaliu signalu tik 26%. Iš 1 Lentelės, galima daryti išvadą, kad su triukšmingu signalu, mokymasis konverguoja į globalų minimumą; bet su originaliu signalu, mokymasis statistikine prasme nekonverguoja. Taigi, iš šių modeliavimo rezultatų galima daryti išvadą, kad triukšmingas signalas leidžia mokymosi algoritmui išeiti iš lokalaus minimumo (local minima). III. II Eksperimentai su dinaminiu neuroniniu tinklu III.I dalyje buvo pademonstruoti statinio neuroninio tinklo modeliavimo rezultatai. Tam, kad patvirtinti, jog aprašytas metodas taip pat veikia ir dinaminiuose neuroniniuose tinkluose. Dinaminės sistemos modeliavimui bus naudojamas TDNN [Waibel et al.,1989]. Bus nagrinėjama tokia sistema, Kur ',' žymi diferencijavimo operatorių. Sistemos įėjimai yra sinusoidžių aibė, Su atsitiktine faze l.. 4 ir 5 Paveikslėliuose vaizduojami sistemos įėjimo ir atitinkamai normalizuoti išėjimo signalai. TDNN tinklo struktūra demonstruojama 6 Paveikslėlyje, kur naudojamas keturių lygių vėlinimas. Šiame tinkle, kaip įėjimai į paslėptą lygį naudojami tik du įėjimo signalai x(t) ir x(t-4). Netiesiškumas (nonlinearity) paslėptuose neuronuose - tai logistinė funkciją. Išėjimas turi vieną tiesinį neuroną. Mokymosi algoritmas - tai BP, kur pavyzdžių klaidos surandamos atimant tinklo išėjimą y(t) iš sistemos d(t) išėjimo. Mokymosi kreivės pavaizduotos 7 Paveikslėlyje, kur triukšmo signalo žingsnio dydis surandamas naudojant (18) Lygtį, kur c=10, 0.01, ir triukšmo kitimas 2 =0.001 . Aiškiai matyti, kad su triukšmingu signalu konvergavimas yra greitesnis ir pasiekiamas žemesnis MSE. Naudojant skirtingus žingsnio dydžius ir svorius, pasiekiami panašūs rezultatai su MSE minimumu lygiu 0,0091. Paveikslėlyje 8 pavaizduotos mokymosi kreivės 100 mokymosi veiksmų, kur žingsnio dydis atsitiktinai parenkamas iš intervalo [0,1, 0,01], o svoriai taip pat yra atsitiktiniai skaičiai. Kadangi nėra žinomas šios problemos globalus minimumas, todėl naudojamas MSE minimali reikšmė 0,0091 kaip globalaus minimumo įvertis. 2 Lentelė atspindi statistikinius rezultatus 100 eksperimentų. 72% (trails) su triukšmingu signalu pasiekė globalų minimumą, ir tik 8% (trails) pasiekė globalų rezultatą su originaliu signalu. Daroma išvada, kad mokymasisi su triukšmingais signalais yra mažiau nepastovus ir mokymosi kreivės taip pat yra daug lygesnės. (smoother) IV.Discussion Eksperimentiškai buvo pademonstruota, kad mokymasis su triukšmingais signalais padidina pastovaus žingsnio dydžio BP algoritmo paieškos galimybes. Tai yra pasiekiama be papildomos kainos algoritmų realizavimo perioduose (This is accomplished at no extra cost in terms of algorithm implementation,), kadangi naudojamas tiesioginis atgalinis mokymas (straight backpropagation.) Papildomos savybės yra gaunamos įvedant nulinės reikšmės valdomo kitimo Gauso triukšmą ir žingsnio dydžio nustatymui pasinaudojant (18) Lygtimi. Buvo pademonstruota, kad triukšmo pridėjimas prie norimo signalo svorių atnaujinimo formulėse prideda nulinės reikšmės stochastinį periodą (that adding noise to the desired signal adds a zero mean stochastic term in the weightupdate formulas.). Nors atskiras triukšmo signalas ir yra įvedamas į norimą signalą, tačiau stochastinio periodo kitimas kiekvienam tinklo svoriui skiriasi (proporcingai kiekvieno svorio jautrumui). Dar daugiau, šio periodo kitimas tiesiogiai valdomas žingsnio dydžio arba išorinio triukšmo šaltinio kitimo. Tai reiškia, kad triukšmo pridėjimas prie norimo signalo yra labai paprasta ir efektyvi procedūra mokymosi proceso ištraukimo iš lokalaus minimumo. Kitimas arba žingsnio dydis turi būti parinktas (anealing) pritaikymo metu. Parinkimo (anealing) realizavimui buvo panaudota Moodžio paieška ir konvergavimo procedūra, tačiau kiekvienai problemai spręsti parametrai turi būti surandami eksperimentiškai. Žingsnio dydžio planavimas, toks, kad būtų įveiktas lokalus minimumas, išlieka atviras klausimas ne tik šiame metode, bet taip pat ir kituose stochastiniuose algoritmuose tokiuose kaip sumodeliuotas parinkimas (simulated annealing) [Kirkpatrick et al., 1983]. Mokymosi algoritmų lankstumo padidinimui yra siūlomi du skirtingi žingsnių dydžiai, vienas gradientui ir kitas - triukšmui. Ši procedūra turi neišvengiamą jungtį su globaliu optimizavimo metodu, vadinamu stochastiniu funkciniu nesklandumų šalinimu (stochastic functional smoothing) [Rubinstein, 1981 and 1986]. Priede aiškinama, kad tiesioginė stochastinio funkcinio nesklandumų šalinimo versija sutrikdo gradientą kartu su triukšmo periodu proporcingai Hesano paviršiui. ( an on-line ver-sion of stochastic functional smoothing perturbs the true gradient with a noise term proportional to the Hessian of the performance surface.) Kuomet signalas pridedamas prie norimo signalo, tikrinis (true) gradientas taip pat yra paveikiamas triukšmų periodo. Šiuo atveju poveikis yra proporcingas naujos veikimo funkcijos gradientui, kuris gaunamas iš originalaus skirtumo tarp d(t) ir y(t), kartu su įvestu triukšmu. Šis paviršius yra susijęs su originaliu, bet gali ir žymiai skirtis. Taigi, kuomet triukšmų šaltinis paprastai yra nustatomas į nulinę Gauso reikšmę, galima tikėtis mažiau optimalių rezultatų, lyginant su stochastinės funkcijos lyginimu (stochastic functional smoothing.). Tačiau algoritmo paprastumas ir geras veikimas gautas eksperimentuose skatina toliau dirbti prie šio metodo. Priedas Šio priedo tikslas yra susieti triukšmo pridėjimą prie norimo signalo naudojant stochastinį funkcinį lyginimo metodą, kuris yra globali optimizacijos procedūra. A.I Stochastinio funkcinio lyginimo optimizacijos apžvalga Stochastiniame funkciniame lyginime, originali neišgaubta funkcija yra perkeliama pagalbinės lyginimo funkcijos, kuri turi kai kurias optimizavimo savybes (t.y. atskiras minimumas). Dirbant su lyginimo funkcija, gali būti atsrastas optimalios problemos globalus minimumas . Lyginimo kainos funkcijos klasė parametrizuota ß yra apibrėžiama kaip [Rubinstein, 1981 and 1986] Kur ß yra valdymo parametras, o y yra atsitiktinis dydis. Dėl J ˆ (wtam, kad būti naudingam originaliai optimizacijai, h ˆ (v impulso atsakymas turi tenkinti keleta sąlygų [žr. Rubinstein, 1981 ir 1986 detaliau], taip, kad parametras apsprendžia lyginimo taikomo J(w) laipsnį. Dideliam lyginimo poveikis yra didelis ir atvirkščiai. Kuomet  0 J ˆ () = J , tuomet nėra lyginimo. Intuityviai aišku, kad norint išvengti lokalaus minimumo, optimizacijos pradžioje  turi būti pakankamai didelis. Tačiau siekiant optimumo lyginimo efektyvumas turi būti mažinamas leidžiant ß artėti prie nulio. Taigi minimumo taške w* laukiamas sutapimas tarp J(w) ir J ˆ ( Atitinkamai, konstruojant iteratyvią w* paieškos procedūrą, yra reikalinga lyginimo funkcijų aibė J ˆ(ß s=1,2,...... Jei signalo atsakymo dalis yra išrenkama kaip daugianormalinė funkcija su dydžiu n ir kitimu ß, tai Lyginimo kainos funkcijos gradientas gali būti įvertintas taip [Styblinski and Tang, 1990] Kur N yra pavyzdžių su daugybe kintamųjų iš (23) Lygties skaičius. Taigi, lyginimo kainos funkcijos gradientas gali būti randamas iš originalios kainos funkcijos. A.II Tiesioginė stochastinės lyginimo funkcijos Optimizavimo realizacija Susiejami triukšmo norimame signale poveikis ((10) ir (11) lygtys) su tiesiogine lyginimo funkcinių gradientų realizacija ((24) Lygtis)). Bus taikoma stochastinės aproksimacijos savybė [Robbins and Monro, 1951]. Kuomet ISE aproksimuoja (stochastine prasme) į MSE ir gradiento operatorius yra tiesinis operatorius, lyginimo kainos funkcijos gradientas εˆ gali būti įvertintas pagal analogiją su Lygtimi (25), taip Dėl supaprastinimo, čia yra ignoruojamas diskretinio laiko indeksas t. Reiktų pabrėžti, kad iš L.(24), kuri atspindi originalios stochastinės lyginimo funkcijos optimizacijos artėjimą prie L.(26), kuri yra tiesioginis L.(24) įvertis, tik vienintelė stochastinės aproksimacijos savybė buvo taikoma taip, kad būtų garantuotas tiesioginio įvertinimo stabilumas [Robbins and Monro, 1951; Kusher and Calrk, 1978; Wang and Principe, 1995]. Tiesioginis vienpusisi įvertis naudojamas L.(26) yra pagrindas gradiento įverčio naudojamo LMS ir BP algoritmuose. L.(26) išreiškia įvertinimą ε(w) gradiento, kuomet w yra paveikiamas atsitiktinio kintamojo βv j . Šis metodas praktiniam realizavimui yra per brangus, kadangi svoriai turi būti veikiami (gradiento skaičiavimui pageidaujamas antras tinklas). Taigi, šis metodas tiesiogiai nėra įgyvendinamas. Realizacijos supaprastinimui siūloma atlikti Teiloro seriją ekspansijų apie w, ir antrame etape jį suskaidyti. Literatūra 1. Darken, C., Chang, J., and Moody, J., “Learning Rate Schedules for Faster Stochastic Gradient Search,” IEEE Neural Networks for Signal Processing, 1992. 2. Fahlman, S., “Fast-Learning Variations on Back-Propagation: An Empirical Study,” In Proc. Of 1988 Conn. Model Summer School. 3. Feller, W, An Introduction to Probability Theory and Its Applications, Vol. 1, 2rd ed. Wiley, NewYork, 1966. 4. Haykin, S, Neural Networks---A Comprehensive Foundation, Macmillan College Publishing Company, New York, 1994. 5. Hertz J., Krogh A., Palmer R. G., “Introduction to the theory of neural computation,” Addison-Wesley,1991. 6. Hinton G. E., “Connectionist learning procedure,” In machine learning: Paradigms and methods, J. G. Carbonell, ed., pp. 185-234. MIT Press, Cambridge, MA, 1989. 7. Holmstrom L., and Koistinen, P., “Using Additive Noise in Back-Propagation Training,” IEEE Trans. on Neural Networks, Vol. 3, No.1, 1992. 8. Kirkpatrick, S., et. al., “Optimization by simulated annealing,” Science 220, 671-680. 9. Krogh, A. and Hertz, J., “Generalization in a Linear Perceptron in the Present of Noise,” J. Phys. A: Math. Gen. 25(1992) 1135-1147. 10. Kushner, H., “Asymptotic Global Behavior for Stochastic Approximation and Diffusions with Slowly Decreasing Noise Effects: Global Minimization via Monte Carlo,” SIAM J. APPL.MATH. Vol. 47, No. 1 Feb., 1987. 11. Kushner, H, and Clark, D. S., Stochastic Approximation Methods for Constrained and Uncon-strained Systems, Springer-Verlag, New York, 1978. 12. Matsuoka, K., “Noise Injection into Inputs in Back-Propagation Learning,” IEEE Trans. Systems, Man, and Cybernetics, Vol. 22, No. 3, 1992. 13. Richard M., Lippmann R. P., “Neural network classifiers estimate Bayesian a posteriori probabil-ity,” Neural Computation, 3, 461-483, 1991. 14. Robbins, H., and S. Monroe, “A stochastic approximation method,” Annals of Mathematical Sta-tistics 22, 1951. 15. Rognvaldsson, T., “On Langevin Updating in Multilayer Perceptrons,” Neural Computation, 6.916-926, 1994. 16. Rubinstein, R., Simulation and the Monte Carlo Method, Wiley,1981. 17. Rubinstein, R., Monte Carlo Optimization, Simulation and Sensitivity of the Queueing Networks,Wiley, 1986. 18. Rumelhart et al, Parallel Distributed Processing, Vol.1, MIT Press, 1986. 19. Styblinski, M.A., and Tang, T.-S, “Experiments in Nonconvex Optimization: Stochastic Approxi-mation with Function Smoothing and Simulated Annealing,” Neural Networks, Vol.3, 1990. 20. Szu, H., “Fast simulated annealing,” AIP conf. Proc. 151:Neural Networks for Computing, Snow-bird, UT, 1986. 21. Waibel, A., T. Hanazawa, G. Hinton, K. Shikano, K. J. Lang, “Phoneme recognition using time-delay neural networks,” IEEEE Trams. ASSP-37, 1989. 22. Wang, C., and J. C. Principe, “On-line stochastic functional smoothing optimization for neural network training, submitted to Neural Networks, 1995. 23. Werbos, p., “Generalization of backpropagation with application to a recurrent gas market model,” Neural Networks, 1, 339-356. 24. Widrow, B., and Hoff, M., “Adaptive switching circuits,” IRE WESCON Convention Record, pp.96-104, 1960.
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Violence at school
2009-12-22
Kids do not turn violent overnight, nor do they not have previous problems of some type. Aggressive behavior can be attributed to a number of things and expressed in a number of ways through home-life, culture, and society. Many of the kids who have committed violent crimes have had problems since the age of five. It is extremely hard to say what leads kids to horrible acts such as Springfield and Columbine. One reason may be aggressive behavior in childhood, caused by harsh and inconsistent parents. A poor family life often leads to trouble in school from the very beginning. The best thing to do for such troubled children is to help them control their aggression through emotional growth and learning. Parents should encourage good behavior or the child will think this way is ineffective. As the child grows older they will continue to think that violent behavior is acceptable and is the most effective way. A teacher can step into these situations and help them see positive morals and realize their actions are wrong. Teachers should reward students for polite behavior or else they will feel frustration and failure. Frustration and failure can bring the child to aggressive behavior as it brings results and gives a sense of control.
Environmental conditions shape behavior through learning; a person’s behavior, in turn, shapes the environment. Persons and situations influence each other reciprocally (abipusishkai). To predict behavior, we need to know how the characteristics of the individual interact with the characteristics of the situation. The S.C. approach is the contemporary descendent of behaviorism and its outgrowth, stimulus-response psychology, which were dominant in the first half of this century. Like the psychoanalytic approach, the S.C. approach to personality is very deterministic. In contrast to the psychoanalytic approach, however, it pays very little attention to biological determinants. Like its parent, behaviorism, the social learning approach has been strongly influenced by the ideas of Darwin. The processes of learning shape the individual’s behavioral repertoire to be adaptive to his or her environment. Through its emphasis on specifying the environmental variables that evoke specific behaviors, S.C. theory has made a major contribution to both clinical psychology and personality theory. It has led us to see human actions as reactions to specific environments, and it has helped us to focus on the way in which environments control our behavior and how they can be changed to modify behavior. The careful application of learning principles has proved successful in changing maladaptive behavior. S.C. theorists have also challenged the notion that individuals are cross-situanionally consistent, forcing other personality theorists to reexamine the fundamental assumptions of their approaches. S.C. theorists have been criticized for overemphasizing the importance of situational influences on behavior and thus losing the person in personality psychology. Many personality theorists are unwilling to concede that personality has as little cross-situational consistency as social learning implies.
Short-term memory
2009-12-22
SM is a intermediary (tarpininkas) storage between SeM and LM. One of its functions is in some way to process information and transmit it for further processing and storage. For this first of all is used encoding. Acoustic encoding is very common in SM and for a long time psychologists thought that was the only method of encoding. Evidence of its importance is documented by that show, for example, the letters T and C are more likely to be confused in SM than C and O, even when they are presented visually.Such results suggest that subjects are recoding the visual symbols to acoustic representations, thus explaining why the similar-sounding C and T are more easily confuced than the different-sounding C and O. There is ample evidence of visual and especially semantic encoding in SM as well. One of the most important aspects of SM is its limited capacity. It is 7 ± 2 elements for a wide variety of materials. There is a tremenduous amount of variation of what can be put into each of those seven bits. For example, we can hold seven numbers in our SM, but also7 words, 7 pictures, or sometimes even 7 sentences. In fact, the bits may be made considerably larger through the processes of chunking, by which we combine pieces of information together to allow them to take up less space in working memory. Another important process that occurs in SM is rehearsal, the temporary activation or recycling or information through memory. Rehearsal may be maintenance (holds information in SM long enough for it to be acted upon in some way) or elaborative (nuodugnus) rehearsal (helps transfer information to LM). Elaborative rehearsal relates information to other concepts already in LM and and develops new asociations between these concepts. The explanations offered for forgetting from SM generally cluster around two general phenomena. On the one hand forgetting is said to occur due to decay of the memory trace over time. The other class of explanations uses the consept of interference. Material is forgotten because other material that is similar is some way interferes by replacing or distorting it. Interference may be retroactive, which means it occurs after original leaning. And proactive, when interfering material comes first and hinder the learning of something else later. We use SM when we are thinking about something at the moment, solving problems (in this case information is retrieved from LM to SM). SM plays a role in understanding language. Findings suggest that we have a special memory system for processing language. A patient who has a defective memory span but normal language understanding has an impaired SM but an intact language memory. The special memory for language seems limited to relatively simple sentences. Once sentences become complex SM is brought in for help. When it come sto higher-level language processes like following a conversation or reading a text, SM appears to play a crucial role. When reading for understanding, often we must consciously relate new sentences to some prior material in the text.
Language
2009-12-22
They serve as a useful means of communication. How could we understand or talk to people from other countries, if we couldn’t speak their language? I think that some people like learning foreign languages, various people have different reasons. I think that some people like learning languages in general, the others learn because they have to do that at school. Besides, nowadays pupils realize quite well that they might need foreign languages in the nearest future or it might be a credit for them to get a better job.
Journalist
2009-12-22
I even got unsightly flags on the streets of Maroubra taken down after writing a public letter of complaint outlining the visual pollution and commercialisation of our otherwise beautiful suburb of Maroubra Beach. The motivation is always there to learn more.” Favourite aspects of his role as the Media Man include: “Meeting and dealing with so many wonderful, interesting people. I am expanding my horizons every day. Interviewing people at Channel 31 has a sentimental significance for me, as the producer, Joy Hruby, gave me my break in television. I need to mention that the Internet provides constant learning and business opportunities. Seeing my ideas and research come to fruition, and benefiting so many, is most gratifying. I also like to expose fraud. Encouraging free thought and expressing freedom of speech in satisfying. Dealing with so many wonderful, supportive folks, many of whom reside in the good ol' USA.” Being able to communicate a message that so many other people will read and consider is probably the most rewarding aspect of being a journalist, according to Greg. “I am still coming to terms with being referred to as a journalist, even though I have my formal qualifications. I need to put in more hard yards, and until I win a major journalism award, I don't mind if I am not thought of as a journalist.”
Firstly, busyness at home and at school should be biggest. Teenagers have to talk with parents about our problems and learning. I think if teenagers would have trade, there would be less crime in the streets. For example: out of school activities, travels, and international organizations, or example: scouts, youth clubs.
English grammar
2009-12-22
Emotions cause not only general reactions, but specific ones as well. We may laugh when happy, withdraw when frightened, get aggressive when angry, and so forth. Among these typical emotional reactions, psychologists have singled out one in particular for extensive study: aggression. The components of an emotion include autonomic arousal (sužadinimas), cognitive appraisal (įvertinimas), and emotional expression. Intense emotions usually involve physiological arousal caused by activation of the autonomic nervous system. People who have spinal cord injuries, report experiencing less intense emotions. Most people report getting angry at least several times a week often at loved ones. Though they commonly feel like aggressing physically when angered most control these impulses. Frustration and pain (mental and physical) arouse anger and can stimulate aggression. Incentives may also trigger aggression. Aggression is a typical reaction to anger (though it can occur for other reasons as well). According to early psychoanalytic theory, aggression is a frustration-produced drive; according to social-learning theory, aggression is a learned response. Biology gives animals the capacity to hurt one another. The threshold levels of numerous aggressive brain systems are thought to be influenced by heredity other neutral circuits, blood chemistry, neurotransmitters, and experience. Cultures that sanction aggression have high rates of it. Families teach aggression directly and indirectly. When treated harshly, children pick up the same habits. Other contributers to aggression include school failures and frustrations, anonymity, poverty, and the availability of weapons. Several techniques for the control of human aggression exist. These include punishment, catharsis, exposure to nonaggressive models, and training in basic social skills. In addition, aggression can often be reduced though the induction of responses or emotional states incompatible with such behavior.
Emotions cause not only general reactions, but specific ones as well. We may laugh when happy, withdraw when frightened, get aggressive when angry, and so forth. Among these typical emotional reactions, psychologists have singled out one in particular for extensive study: aggression. The components of an emotion include autonomic arousal (sužadinimas), cognitive appraisal (įvertinimas), and emotional expression. Intense emotions usually involve physiological arousal caused by activation of the autonomic nervous system. People who have spinal cord injuries, report experiencing less intense emotions. Most people report getting angry at least several times a week often at loved ones. Though they commonly feel like aggressing physically when angered most control these impulses. Frustration and pain (mental and physical) arouse anger and can stimulate aggression. Incentives may also trigger aggression. Aggression is a typical reaction to anger (though it can occur for other reasons as well). According to early psychoanalytic theory, aggression is a frustration-produced drive; according to social-learning theory, aggression is a learned response. Biology gives animals the capacity to hurt one another. The threshold levels of numerous aggressive brain systems are thought to be influenced by heredity other neutral circuits, blood chemistry, neurotransmitters, and experience. Cultures that sanction aggression have high rates of it. Families teach aggression directly and indirectly. When treated harshly, children pick up the same habits. Other contributers to aggression include school failures and frustrations, anonymity, poverty, and the availability of weapons. Several techniques for the control of human aggression exist. These include punishment, catharsis, exposure to nonaggressive models, and training in basic social skills. In addition, aggression can often be reduced though the induction of responses or emotional states incompatible with such behavior.
Education 2
2009-12-22
Some years ago secondary schools taught the same subjects, had the same organization of education. Today they are very different: some of them teach humanitarian subjects, some - science. The school curriculum, the organization of the lessons, the timing of the holidays, dressing vary from school to school. Subjects can be taught in three levels even at one school. You can take your examinations in three different levels too. Lithuanian children start attending secondary school when they are six or seven years old. They go to the primary schools which are in the kindergartens mostly. When they are ten or eleven years old they go to a secondary school. Pupils can stay at a secondary school for twelve years, but some of them leave secondary school at the end of the ninth form. They go to vocational junior colleges or manual training schools, where they can get both secondary education and the qualifications necessary for a job. Before that these pupils must take the examinations for the General Certificate of Secondary Education. But not only these, all pupils must take examinations. Everybody can go to a university after graduating from a secondary school, vocational junior college or manual training school. The brightest students have a chance of studying abroad. Pupils can transfer freely from one school to another. Secondary education is free. Pupils get their textbooks free, too. But some of higher schools and universities are not free. Students who have not very good marks in their Certificates of Secondary Education can study there too. But they have to pay money. Those pupils who are not very good at learning can go to evening school. It is easier to study there. As for me I attended secondary school No.5 in Marijampolė. I start attending my school when I was six years old. I have been going to this school for twelve years now. Our school is 24 years old. It is not very large: there are about 1000 schoolchildren and about 5 teachers in it. I like my school because there are my friends in it, because my school is famous for skilled teachers. I am on a good footing with them. Some teachers are not very tolerant to schoolchildren who don’t agree with them, but most of them are very generous and nice people; I can go if I have a problem to them. So I am sad at the thought of leaving my school, teachers and class friends. It is definitely our last year at school so I have to do my best. We have a canteen, a library, some cloak rooms, a big sport hall, a school hall in our school. We have a large playing field near our school. Inside the school building we have a lot of special classrooms where different subjects are taught. The biology room is my favourite because there are many dummies in it. My favourite subjects are English, Biology and Literature. There are some clubs at our school. We have got basketball and football teams. There are some singers and a lot of dancers at our school. On Saturdays we often have dances. We always celebrate various celebrations: The Day of Valentines, The Day of liars, The Day of teachers. We have a nice egg exhibitions in spring. But the most impressive is our New Year carnival. My parents want me to be a doctor. It is their ambition, and I am planning to study medicine in Kaunas. I want to become a midwife. It’s a very responsible and significant profession. I hate having to ask my mum and dad for money. So I must study. But I don’t want to leave my family and friends. Anyway, I’m scared of living on my own in a big town. I must continue learning for the rest of my life. Education is very important in person’s life. The years when we attend at school are the happiest. Educated people are intelligent. The school year begins on the first of September and finishes in June. The school year is divided into three terms.
Cheating
2009-12-22
I take a very difficult exam. I have to study for about one week. But I do not. I read a bit every day and I feel calm, because I know I will be able to cheat. Everybody knows that, but some of my group mates study a lot. They study for themselves, for the future or because they are really interested in that subject. I am not interested at all. After the exam we find out that all students got good marks. But somebody is not satisfied or jealous, so he goes and tells the lecturer the names of those people who cheated. He tells my name too. I am very upset- not because I have cheated, but because I can trust nobody in my group. How could I be so stupid and tell that man such a simple thing… Cheating is a very popular phenomenon in our country. In other countries the prevalence of cheating differs. And it is a problem of educational system, not of students. When the disciplines are interesting and useful, students are fond of learning, not of cheating. But the worst thing is that nobody can change this system rapidly: it requires much time, money and hard work. Firstly, honors code like Groveton’s ruins the relationships between students. A student can not trust anybody and tell that he is going to cheat. That is, he has to lie to his mates that he knows a lot, that he has studied for weeks. And it is very difficult (I would say impossible) to find real friends from the university environment. For example, I would not call a friend such a man, to whom I have to lie, who can lodge a complaint against me after every test or exam. The most important thing in friendship is trust and freedom to talk, share impressions. Sometimes it is so great to tell a real friend: “That was the best cheating in my life…” In our society lots of students’ best friends are from their course. If students would have to sign an honor code, the relationships between them changed a lot. There could be no talk about marriages between group mates, because what is a marriage without trust and supporting a spouse? Or there could be another way out of such situation: to break an oath and to lodge complaints only against some students. But on the other hand, if one breaks an oath, there is no need to report about cheating at all. So what should a poor student do? Another difficulty is that the information can be not reliable. If one student hates somebody, it is natural that he tries to do harm to the object of hate. And he can say that he is cheating after every exam and test. Karen Horney says that some people are inclined to competitiveness. Such people try to damage a competitor in order to enhance their own position or glory or to keep down a potential rival. For such a man it is more important to see others defeated than to succeed himself. In universities it is natural that they would try to defeat their mates (competitors) in the easiest way- they will tell that others have cheated. And it is very difficult to check such information. I think that people can not be forced to sign such documents as honor codes, because nobody can make disgraceful people become honorable. The ones who are honorable will not cheat without signing any paper, and the ones who want to cheat, will pay no attention to what they have signed. I think that forcing to sign an honor code would insult me a bit, because I can be honorable without a code, and it is nobody’s business. It is up to me and my conscience to decide whether I will cheat or not. University is not a secondary school, where students have to learn lots of needless subjects. Almost everything that is taught at universities is necessary for the future job. Students choose a profession to study, which interests them, and so they are fond of learning and knowing a lot.
Bikes
2009-12-22
Bikes I will tell you a story which i called –bikes. Actually I don’t remember my first bike but I will try to recreate my memories about it. As I remember it was green collored with pink wings. It was present from my good neighbour friend .She presented that bike to me because she bought new one and that old one she didn’t want to through away. Now I remember clearly how I was riding with that bike and my mother was holding me behind it. The first time was enough hard because I could not to concentrate me attention but day after day I was learning to do it well and finally I learnt. Ride bicycle was very funny . I remember when my friends bought bikes too then we were riding through the all city until midnight, without any lights or helmets . I know that it was dangerous, but I was cool. And every day the same. That bike was my casuality. I remember that once we were riding and we were in very good mood , we were screaming something like cannibals or crazy people. Next time we were screaming like that – Hey young lady Danguole which lives in Salomeja 51, where are you going? I don’t ride bike so often as I used to. Maybe the reason is that I don’t have so much time. But I have extra case that I am riding when my best friend comes to me then we take our ancient grandmothers bikes and after that we are going to scare people. I can describe how looks my bike like. It is yellow, with big wheels, extra seat on the back and with breaks which don’t work. My mum calls that bike – The masculine bike. It looks really terrible. And when I am cycling with that beauty ( rasyti kabutese) through the city that moments are very funny when people pay attention on you because you made them laugh of your bike appearance … So… That was the story about two bikes which weren’t my own, but with them I was riding mostly.
Anglų kalba  Rašiniai   (3,06 kB)
American English speaking without a lot of effort How To Learn American English Speaking Easily? Everyone learns to speak their native language. Is there some things that kids are missing when they are emerging? Dr. J. Marvin Brown says that “both adults and children can do it right, but only adults can do it wrong.” So why we can not use the same approach with a second language? Why we can’t learn American English speaking like children? Easily and without a lot of effort. In fact we can. There are a lot of researches which shows that adults can learn languages even more easily and fast. But here‘s the thing. We need forget all that we were learning in school. Because it is the most important reason why we can not speak American English at all. That’s the reason why we don’t understand anything when American people are talking to each other. Yes, we can read American and English newspapers, but this language is not the same. The people are not speaking that way. Their speech is different. If we want to understand native American speakers and speak with them, we must find the different way. In 1984, the American University Language Center in Bangkok started using a new approach to teach the Thai language. The method is known as “Automatic Language Growth”. The first mistake they noticed is that adults are trying to speak in new language to early. They don’t have enough exposure to language yet and they are struggling and feel uncomfortable. They are bringing patterns from their first language and later they are speaking with a strong accent. Children in the beginning are just listening to the new language. They starts to speak when they are prepared. That’s the big difference. The second mistake adults make is that they are thinking, that they must study grammar. That’s a huge mistake. A vital mistake. Children do not studying grammar and that’s the key. If we want to learn American English speaking we must learn speaking. Not grammar. Learning grammar does not make you fluent. You must train your ears and you must train your mouth. So how we can learn speaking without grammar. Simply. First of all we must listen. Every day one or two hours. The more is the best. We must listen to easy and understandible content. That builds our confidence. And we must begin to speak when we are prepared only. When we can do this without struggling. It commes authomatically. Believe me. I have done this with Original Effortless English Lessons. It is totally new approach in learning English. It is real language. You can learn English speaking naturally. You can do the same. You can learn American English speaking just like I did.
Anglų kalba  Rašiniai   (4,61 kB)
Leidinyje nagrinėjama technikos objektų patikimumo sąvoka bei jo įvertinimo metodai. Objekto patikimumas įvertinamas atsižvelgiant į ypatybes. Kiekviena iš šių ypatybių – ilgaamžiškumas, negendamumas, pataisomumas, išsilaikymas – apibūdinama tam tikrais rodikliais arba charakteristikomis. Gedimo susiformavimo ir jo pašalinimo laikas yra atsitiktiniai dydžiai, todėl patikimumo charakteristikos apskaičiuojamos tikimybių teorijos ir matematinės statistikos metodais.
Mechanika  Referatai   (19 psl., 105,19 kB)
My friend
2009-10-13
One time, when I was playing basketball with friends came Modestas. He was my friend’s cousin. But at first sight I thought that I had seen him somewhere.
Anglų kalba  Rašiniai   (1 psl., 5,66 kB)
15 anglų kalbos tekstų kalbėjimui.
Anglų kalba  Namų darbai   (5 psl., 15,04 kB)
Vulnerable period for the shaded frame. Throughput versus offered traffic for ALOHA systems. Comparison of the channel utilization versus load for various random access protocols. The basic bit-map protocol. The binary countdown protocol. A dash indicates silence. Acquisition probability for a symmetric contention channel. The tree for eight stations. Wavelength division multiple access. GSM uses 124 frequency channels, each of which use an eight-slot TDM system.
Informatika  Konspektai   (53 psl., 98,98 kB)
Computer network - interconnected collection of autonomous computers. Mainframe computer with terminals is not a computer network. Computer network is not a Distributed system. Distributed system is a software, built on top of a network. Networks for companies: resource sharing, high reliability, saving money, communication medium. Networks for people: access to remote information, person-to-person communication, interactive entertainment.
Informatika  Pateiktys   (19 psl., 530,76 kB)
Vocabulary. Definitions of key vocabulary. The means of marketing. Advertising. Advantages and disadvantages of major advertising media. Formulating of the advertising message. The role of the advertising in the promotional mix. Advertising as persuasion. Marketing influences and often actually controls almost every part of company's activities. Everyone who works for the company must “think marketing”. To think marketing we must understand in the right way what is the marketing concept.
Rinkodara  Konspektai   (32 psl., 212,25 kB)
Drugs
2009-08-06
Drug dependence. Opioids. Stimulants. Hallucinogens. Cannabis. Inhalants. Drug dependence, psychological and sometimes physical state characterized by a compulsion to take a drug in order to experience its psychological effects. Psychological dependence, or habituation, is present when the compulsion to take a drug is strong, even in the absence of physical withdrawal symptoms.
Anglų kalba  Konspektai   (6 psl., 124,12 kB)
English Tenses
2009-07-25
Anglų kalbos laikų lentelė.
Anglų kalba  Pagalbinė medžiaga   (2 psl., 12,06 kB)
100 anglų kalbos transformacijų. Gale yra atsakymai.
Anglų kalba  Testai   (13 psl., 34,24 kB)
I remember my days in the primary school. My first day, my first lesson in the school stacked in my memory very well. It was early morning of 1 September in 1988. My father saw me to my new school. I was terrified in that big building. I did not know anyone in my new school. I had no friends, because I had not ever been to the kindergarden. I remember very well, when I came to my first classroom. It was very big and full of toys, books and strangers. My father gave to me a pen and pencil and I sat into my first desk.
Anglų kalba  Rašiniai   (1 psl., 3,2 kB)
London
2009-07-09
London is packed full of accommodation options. You can stay in a five-star hotel, an intimate B&B (Bed & Breakfast), a self-catering apartment or a quality hostel. There is no shortage of beds and even in the luxurious and fashionable areas you might find something to suit your price range. Type of Room Double rooms, single rooms, twin rooms, family rooms… the choice can be overwhelming. Just know that London’s hotels offer a range of standard room configurations. Your hotel or B&B might offer simple singles and twins or may stretch to luxurious suites covering hundreds of square feet.
Anglų kalba  Referatai   (4,49 kB)
Swimming
2009-07-09
Swimming, act of moving through the water by using the arms, legs, and body in motions called strokes. The most common strokes are the crawl, backstroke, breaststroke, butterfly, and sidestroke. Swimming is an integral part of almost all water-based activities. It is also a competitive sport itself. Some scientists believe that human beings are born with an instinctive ability to use their arms and legs to stay afloat.
Anglų kalba  Referatai   (4,29 kB)
I read one article that psychologists did an experiment to answer the question of violence influence on kids in which they showed each of two groups of children a different version of a video tape: One group saw video A which showed a lady acting normally with a big doll. The second group saw video B which showed a lady acting aggressively with the same doll. She was kicking and hitting the doll violently.
Anglų kalba  Namų darbai   (1,59 kB)
Lithuania
2009-07-09
Lithuania is situated on the eastern shore of the Baltic Sea and borders Latvia on the north, Belarus on the east and south, and Poland and the Kaliningrad region of Russia on the southwest. It is a country of gently rolling hills, many forests, rivers and streams, and lakes. Its principal natural resource is agricultural land. Government. Parliamentary democracy. History. The Liths, or Lithuanians, united in the 12th century under the rule of Mindaugas, who became king in 1251.
Geografija  Referatai   (9,82 kB)
Jau seniai vartotojas ir jo poreikiai tapę vienu iš svarbiausių objektų kiekvienos organizacijos veikloje. Vartotojų elgsenos pažinimas rinkodaros specialistams leidžia suprasti ir numatyti vartotojų elgesį pirkimo vietoje, taip pat suteikia galimybę suprasti, kokią įtaką vartojimas daro kiekvieno individo gyvenime. Vartotojų elgsena, jų poreikių žinojimas, organizaciją įgalina efektyviau juos patenkinti, taip pat kurti abipusę naudą.
Rinkodara  Referatai   (4,48 kB)
Puerto Rikas
2009-07-09
Even though Puerto Rico has three times voted against becoming a U.S. state, yet another effort is being made to persuade Puerto Rico to change its mind. Of course, the Democratic Party thinks making Puerto Rico our 51st state is a cool idea because that would give the Democrats two additional U.S. Senators and 6 to 8 additional Members of the House, more congressional representation than 25 of our 50 states.
Anglų kalba  Rašiniai   (2,55 kB)
Vitamins
2009-07-09
All living things, plant or animal, need vitamins for health, growth, and reproduction. Yet vitamins are not a source of calories and do not contribute significantly to body mass. The plant or animal uses vitamins as tools in processes that regulate chemical activities in the organism and that use basic food elements-carbohydrates, fats, and proteins-to form tissues and to produce energy.Vitamins can be used over and over, and only tiny amounts are needed to replace those that are lost.
Anglų kalba  Referatai   (4,99 kB)
"[W]e find that testing students who participate in extracurricular activities is a reasonably effective means of addressing the School District’s legitimate concerns in preventing, deterring, and detecting drug use." Justice Clarence Thomas U.S. Supreme Court JUNE 27, 2002 Board of Education of Independent School District No. 92 of Pottawatomie County v. Earls Foreword In June 2002, the U.S. Supreme Court broadened the authority of public schools to test students for illegal drugs.
Anglų kalba  Referatai   (5,03 kB)
Nightclub is a business that is open at least twice a week and provides some type of regularly scheduled entertainment. It usually has an area for dancing if it is a dance club or a stage where patrons may observe entertainment such as live bands, comedy, magic, exotic dancers, etc. Most clubs serve alcoholic beverages and may or may not have dining. Night clubs have become the new fad in town!
Anglų kalba  Namų darbai   (4,84 kB)
Notions of language
2009-07-09
A language is a system, used for communication, comprising a finite set of arbitrary symbols and a set of rules (or grammar) by which the manipulation of these symbols is governed. These symbols can be combined productively to convey new information, distinguishing languages from other forms of communication. The word language (without an article) can also refer to the use of such systems as a phenomenon.
Anglų kalba  Referatai   (4,57 kB)
This section describes why leaders exist and what knowledge, skills, and abilities are important to manage learning. We know, to begin, that leaders exist because man is a social creature. The leader in our society is responsible for the essential tasks in the collections of groups that make up civilization. In most traditional or conventional training events, because of a lack of systematic programming, most of the emphasis is focused on attempts to change people's perception. Little time is usually allocated for practice and even less to measure changes in performance during the training situation.
Anglų kalba  Referatai   (4,62 kB)
Cat's
2009-07-09
A group of cats is referred to as a clowder, a male cat is called a tom, and a female is called a queen. The male progenitor of a cat, especially a pedigreed cat, is its sire, and its female progenitor is its dam. An immature cat is called a kitten (which is also an alternative name for young rats, rabbits, hedgehogs, beavers, squirrels and skunks). In medieval Britain, the word kitten was interchangeable with the word catling. A cat whose ancestry is formally registered is called a pedigreed cat, purebred cat, or a show cat (although not all show cats are pedigreed or purebred). In strict terms, a purebred cat is one whose ancestry contains only individuals of the same breed.
Anglų kalba  Referatai   (23,62 kB)
European Union
2009-07-09
The European Union is the European supranational organization dedicated to increasing economic integration and strengthening co-operation among its member states. It was established on November 1, 1993, when the Treaty on Eu was ratified by the 12 members of the European Community (EC) – Belgium, Denmark, France, Germany, Great Britain, Greece, Ireland, Italy, Luxembourg, the Netherlands, Portugal, and Spain. Under the treaty on EU, customs and immigration agreements were enhanced to allow European citizens greater freedom to live, work, or study in any of the member states, and border controls were relaxed.
Anglų kalba  Namų darbai   (2,61 kB)
Galsworthy’s trilogy – The Man of Property, In Chancery, To Let – concerns an upper middle-class English family and traces, through the story of a group of related characters, the changing aspects of manners and morals from the Victorian age to the period between wars. In his preface john Galsworthy points to the general theme of the series – the disturbance that beauty creates in the lives of men, as exemplified by the story of Irene. The story: In 1886 all the Forsytes gathered at Old Jolyon Forsyte’s house to celebrate the engagement of his granddaughter, June, to Philip Bosinney, a young architect.
Anglų kalba  Konspektai   (3,53 kB)
William Bradley Pitt. Height 5' 11" (1.80 m). Mini biography Brad Pitt was born in Oklahoma and raised in Springfield, Missouri. His mother's name is Jane. His father, Bill, worked in management at a trucking firm in Springfield. At Kickapoo High School, Pitt was involved in sports, debating, student government and school musicals. Pitt attended the University of Missouri, where he majored in journalism with a focus on advertising.
Discuss the following statements. Which of them could be used to define culture? Before reading the text, explain in your own words what is meant by culture. Work in small groups or pairs and then share your ideas in the classroom .
Anglų kalba  Konspektai   (4,73 kB)
Anglų kalba
2009-07-09
Everyone wants to live clean, nice and tidy. We like to look at somewhere and say: “What a niece place! How wonderful! Just like in heaven!”. But what are we doing to make the surrounding like this? To my mind just nothing… On the contrary – we do much more to destroy our environment. Living conditions in the world are getting worse and worse. Exhaust fumes and smoke from factories are polluting the air, trees are cutting down, and streets are full rubbish and grime. Furthermore rivers are being polluted by chemicals from factories too.
Anglų kalba  Konspektai   (4,89 kB)
Defoe hopes that Moll Flanders will be taken for what he says it is, a true history, despite the fact of its heroine's real name being concealed and the multitude of novels being published at the time. He explains that he has altered Moll Flanders' style to make it more polite and modest, as befitting her supposedly reformed character. Originally its language had been "not fit to be read," as a result of Moll's debauched lifestyle.
About Hronas
2009-07-09
JSC "Hronas" was established in 1993. The Company started with importing and installing plastic windows. Early in 1994 the new production equipment >was brought to and window production started in Lithuania. During seven years of strenuous work the Company has gradually introduced one of the most state-of-the-art aluminium, plastic and wooden construction production processes in Europe.
Pollution
2009-07-09
I’m going to speak about some kinds of pollution, for example air pollution or acid rain, water pollution. Now different kinds of trees, many of the animals, birds, fish are in serious danger. What should government do to stop the polluting, nowadays? First of all I would like to speak about water pollution There is no ocean or sea which is not used as a dump. Many rivers and lakes are poisoned, too. Fish and reptiles can’t live in them.
About languages
2009-07-09
My native language is Lithuania. So he must know its fourth form I began to learn the English language. From history, grammar, literature spelling. When I was on the the very first days I understood that it is very difficult to learn. English, as it has different pronunciation and spelling. If you want to learn new words, grammar, how to form the sentence. It is necessary to know the history, culture, traditions of the country which language, you study.
Public services is a term usually used to mean services provided by government to its citizens, either directly (through the public sector) or by financing private provision of services. The term is associated with a social consensus (usually expressed through democratic elections) that certain services should be available to all, regardless of income. Even where public services are neither publicly provided nor publicly financed, for social and political reasons they are usually subject to regulation going beyond that applying to most economic sectors.
Anglų kalba  Referatai   (8,51 kB)
Children start to go school at age of seven. They can stay at secondary school for 12 years but some of them leave it after tenth form. These pupils usually go to vocational junior colleges where they can get secondary education and profession. But these schools are getting less popular now, because more and more students want to study at the University.
Anglų kalba  Referatai   (2,07 kB)
Delivery of speech
2009-07-09
It is known that public speaking is a transaction between you and your audience. Just as the language you choose for your message should reflect the nature of your audience, so too should your delivery. Specifically, we discuss choosing an appropriate method of delivery, adapting to diverse audiences, and adapting delivery to the speech occasion.
Anglų kalba  Referatai   (9,62 kB)
Foreign languages
2009-07-09
First of all I’d like to say that learning foreign languages is especially important in nowadays. Some people learn languages because they need them in their work, others travel abroad. Many people go to different countries as tourists or to work every year. They may not understand that countries language, therefore they have to know English, the language of international communication.
Anglų kalba  Namų darbai   (1,16 kB)
Present Simple – everyday/year, often, sometimes, usually, seldom, always, never, at weekends, on Mondays …Po when, as, while, before, after, as soon as, until, if; taip pat po who, which, that pgr. sakinys būsimasis, o šalutinis būtinai esamasis. Present Continuous (to be talking) – now, at the(this) moment; su įsiterpusiais always, constantly, for ever. Present perfect (to have talked) – just, already, yet, lately, recently, so far, ever, never, before. Baigtam veiksmui su today, this morning/afternoon/evening/week/month/year, kai jie reiškia nepasibaigųsį laiką. Nepasibaigusiam veiksmui su for ir since.
Anglų kalba  Konspektai   (4,32 kB)
Įvaizdžio sandara
2009-07-09
Šiame darbe nagrinėsime įvaizdžio sandarą, lygius bei su jais susijusius aspektus. Šio darbo tikslas – išnagrinėti bei išanalizuoti įvaizdžio sandarą, lygius bei su jais susijusius aspektus. Šio darbo aktualumas – kiekviena įmonė susiduria su įvaizdžiu, kadangi klientai susidaro nuomonę apie įmonę ar jos prekes bei paslaugas atsižvelgdami į jos įvaizdį, tad yra aktualu žinoti kaip sukurti teigiamą įmonės įvaizdį atsižvelgiant į jo lygmenys, veiksnius bei sandarą.
Komunikacijos  Referatai   (12,72 kB)
Italian Migration
2009-07-09
Italy is a country with a long history of emigration and a very short experience ofimmigration. Mass emigration started with Italian unification: during the period 1861- 1976 over 26 million people emigrated, half of them towards other European countries,the rest towards North and South America.
Geografija  Kursiniai darbai   (4,89 kB)
Egiptas
2009-07-09
Egypt, officially the Arab Republic of Egypt, is a country in North Africa that includes the Sinai Peninsula, a land bridge to Asia. Covering an area of about 1,001,450 square kilometers (386,560 square miles), Egypt borders Libya to the west, Sudan to the south, and Israel and the Gaza Strip to the northeast; on the north and the east are the Mediterranean Sea and the Red Sea, respectively.
Geografija  Namų darbai   (6,98 kB)
Introduce myself
2009-07-09
First of all I would like to introduce myself. I am Andrius Narbutas student A. I am studying in the fourth A class of gymnasium. It means that this year I am the school-leaver. Talking about my personal characteristics I would like to say that I am frank, obstinate, persistent, good-tempered and sometimes moody. In my opinion it is very important to mention that I am studying English for nine years and now you have a chance to grade my English knowledge.
Darbe „Vieta gyvajai gamtai pažinti pradinių klasių gamtamoksliniame ugdyme” analizuojama, kiek vietos pradinių klasių gamtamoksliniame ugdyme skiriama gyvajai gamtai pažinti. Yra daug tėvelių ir mokytojų nuomonių apie pradinių klasių gamtos pažinimo vadovėlius. Jie skirti žinioms praplėsti ir gilinti, daug iliustruoti, daug rekomenduojamų atlikti užduočių, todėl didelį vaidmenį, mokant pažinti gyvąją gamtą vaidina mokytojas.
My Ideal School
2009-07-09
Šis mano darbas buvo įvertintas 10 balų. In my childhood, i used to dream of the best school. I kept telling my friends, if i would be a headmistress, i would change a lot. I have a pen-friend, he is from Brazil. In addition he has never heard about Lithuania, and it's educational problem.
Anglų kalba  Rašiniai   (0,82 kB)
Anglų kalbos temos
2009-07-09
Personal identification I’m Darius. I was born in 1978 on the 21th of February in Kaunas. I don’t remember anything about the weather that day, but I know that it was about 2:30 p.m. I was the first child in the family. Our family is not very big, I have a brother. When I was a child I can't say, that I was a good boy. My parents always want me to be a good man, and now I'm very thankful for that.
Anglų kalba  Rašiniai   (15,57 kB)
Įvairių dalykų pliusai ir minusai, gali praversti rašiniams, kalbėjimo įskaitai. Access a lot of information, do some jobs very quickly, communicate very quickly, word processors make it easier to write letters and reports, and to do work for school, make learning more exciting, large amount of information can be stored.
Anglų kalba  Rašiniai   (2,31 kB)
Charles Dickens
2009-07-09
Įvertintas 9. he Greatest of Victorian writers English novelist, generally considered the greatest of the Victorian period. Dickens's works are characterized by attacks on social evils, injustice, and hypocrisy. He had also experienced in his youth oppression, when he was forced to end school in early teens and work in a factory.
Anglų kalba  Namų darbai   (6,77 kB)
Emotions
2009-07-09
Perhaps all of us have experienced both positive and negative feelings. We all have felt joy, sorrow or fear. All these feelings represent emotions – feelings that generally have both physiological and cognitive elements and that influence behavior. So when we experience a feeling it is likely that there are changes, for example, in our heart rate.
Anglų kalba  Namų darbai   (4,12 kB)
Anglų kalbos temos
2009-07-09
Some people think that school years are the happiest days in people’s lives. Can you say that you have been happy at school? Why? School is the traditional place for acculturating children into our national life. In the modern age, the role assigned to our schools is to prepare children for the literate public culture.
Childhood should be a happy time spent playing with friends, enjoying a favorite toy — even planning for the first day of school. But children in the developing world spend most of their childhood struggling to survive, without much hope for a secure, productive life.
Anglų kalba  Konspektai   (3,05 kB)
Kauno Saulės gimnazija, gauta iš kalbėjimo 10. I am from Kaunas, my address is Baltijos seventy-nine, flat nine, I was born on the ……………th of ………….. in Kaunas, thus I am nineteen now. I am male, and still single as I think I am not mature enough to marry. Thus, I have no children.
Atsakymas į egzamino klausimą. Įvertintas puikiai. Anglų kalba. 5 lapai 12 šriftu. Innovation can be usefully characterized as a learning process. Learning is intrinsically cumulative: firms, regions and countries usually innovate along specific and quite rigid trajectories. Technological progress and innovation usually involve a variety of learning processes which may be obtained either from internal or external sources.
Opinion Letter: Child Labor According to the International Labor Organization there are approximately 250 million working children between the ages of 5 and 14. Somewhat around 120 million of them are performing in their jobs on a full time basis. Another half combines with school and other non-economic activities. Impressive numbers, aren’t they?
Anglų kalba  Analizės   (4,81 kB)
Fight Club
2009-07-09
Filmo "Fight Club" analizė.
Anglų kalba  Analizės   (6 kB)
Ką reiškia būti mokytoju (anglų k. metodikai). The advantages and disadvantages of being a teacher. School takes up a very important part in students’ life. There they spend twelve years of them life. The school becomes like a second home to them. There they grow up, learn to love, to forgive and to be friend. The school is the first step to the greet life. The most important person in school is the teacher.
Anglų kalba  Analizės   (2,25 kB)
Today education has become a token of an advanced, healthy and competent society. In fact, modern education more than ever before is aiming to provide experiences that will be useful in life (Smith 153). In the process of deciding which activities are effective and should be included in the high school curriculum, a clash between opinions often arises.
Anglų kalba  Analizės   (5,45 kB)
In ancient times, commercial and political campaign displays have been found in the ruins of Pompeii. Egyptians used papyrus to create sales messages and wall posters.
Anglų kalba  Analizės   (20,72 kB)
Palyginimas darželių, mokyklų ir rebilitacijos klinikos Norvegijoje ir Lietuvoje. Darbas pristatytas Agderio universitete Norvegijoje.
Anglų kalba  Analizės   (8,8 kB)
Education on the whole. Education fees in schools and Universities. Famous high schools of Lithuania. Famous foreign high schools. Education obtainable in Vilnius University. Types of high education. Education and studies in Communication Departament. Education is compulsory in Lithuania. Children start school at age of seven. They can stay at secondary school for 12 years but some of them leave it after tenth form. These pupils usually go to vocational junior colleges (proftechos) and trade schools where they can get both secondary education and qualification.And also they leard a trade.
Anglų kalba  Rašiniai   (3 psl., 5,42 kB)
Informacinių technologijų samprata ir jų raida. Informacinės technologijos – pranašumas ar būtinybė? Jo svarba tarptautiniam verslui. Informacinių technologijų įtaka verslo organizacijoms. Technologijos vystymasis niekada nesustoja. Viena puiki idėja neišvengiamai gimdo kitą. Technologija stumia mus kilti aukštyn Maslow poreikių hierarchijos laipteliais. Ji niekada neprašo leidimo. Ji nežino žodžio “Prašau”. Ji veržiasi pirmyn, visą laiką tik pirmyn. Šiandien žaidžiame atomais kaip “Lego” kubeliais. Po daugiau eina dar daugiau.
Informatika  Pateiktys   (7 psl., 13,54 kB)
Topics
2009-05-20
Education. Health and body care. Free time, entertainment. Services. Shopping. Everybody has a right to education in Lithuania. The secondary education is compulsory. Nowadays the life in our country is very difficult and a lot of young people don’t go to school, they haven’t even got secondary education. There are a lot of young people, children especially in big town’s streets.
Anglų kalba  Rašiniai   (1 psl., 10,95 kB)
Pagalba ruošiantis anglų kalbos egzamino kalbėjimo daliai.
Lietuvių kalba  Pagalbinė medžiaga   (8 psl., 19,36 kB)