The first time the US and the USSR acted as certain enemies was the Berlin Blockade. Post-war Germany was divided into four parts and was occupied by the US , the USSR, Britain and France. Berlin, situated in the Soviet zone, was also divided. In 1948 Stalin enforced a blockade of Berlin and so Germany was divided into the Federal Republic of Germany( West Germany) and the German Democratic Republic (East Germany). The Allies responded with the `Berlin Airlift and for eleven months supplies were flown into Berlin by the Allies aircraft. The blockade was ended in May 1949 when Stalin gave up. 4. a) Marshal Tito also known as Josip Broz Tito was the Communist regime leader in Yugoslavia. He was very patriotic and party thanks to him Yugoslavia managed to keep its independence. Yugoslavia managed to fight back the Nazis almost single-handed.Tito resented taking orders from
9 Sleep and Biological Rhytms 2007, cit Hart SG, Hauser JR. In-flight application of three pilot workload measurement techniques. Aviat. Space Environ. Med. 1987; 58: 402-10. 10 Sleep and Biological Rhytms 2007, cit Liu Y, Wickens CD. Mental workload and cocnitive task automaticity: an evaluation of subjective and time estimation metrics. Ergonomics 1994; 37: 1843-54. 11 Sleep and Biological Rhytms 2007, cit Samn SW, Perelli LP. Estimating Aircrew Fatigue: a Technique with Application of Airlift Operations. USAF School of Aerospace Medicine: Brooks AFB, 1982. Technical report SAM- TR-82-21. 12 Sleep and Biological Rhytms 2007, cit Dinges DF, Powell JW. Microcomputer analyses of performance on a portable, simple visual RT task during sustained operations. Behav. Res. Methods. Instrum. Comput. 1985; 17: 652-5. 13 Sleep and Biological Rhytms 2007, cit Hart S, Staveland L, Development of the NASA-TLX (Task Load Indeks): results of empirical, theoretical research
Väikesed 1-25 ruutmeetrise pindalaga tehismaterjalist kalakasvatusrajatised *Ruut, ristkülik või ümmargune *Pikkades ristkülikukujulistes tekivad nurkades surnud tsoonid, kalad hoiduvad sisse ja väljavoolu juurde. *Ringvooluga basseinis paikneb kala ühtlasemalt *Kiirvoolukanalid (100 X 4 X 1 m) milles vee korduvkasutus Kiirvoolukanalid *Kiirvoolukanalid milles vee korduvkasutus *Taani tehnoloogia järgi sõnnikuärastuseks settekoonused ja vee ringvoolu tekitamiseks õhktõstuk (airlift). Sumbakasvatus merevesi/ magevesi *Sumbad *Püsiv veetemperatuur *Eesti rannikul sobivaid kohti vähe *Suvised ja sügisesed ohu *Kalu tuleb vaktsineerida (vibrioos, furunkuloos) Veevarustus Isevoolsed odav ja töökindel. Vesi voolab kanaleid, renne ja torustikke mööda, läbivool reguleeritav. Pumbatavad kulukam, rikete ning elektrikatkestuste oht. Retsirkulatsioonisüsteem *Suletud veekasutusüsteemideks on basseinid *Vesi pidevas ringluses *Biopuhasti (nitrifikatsioon)
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