ϬÏúϽ┘èÏ▒ ϬÏÀÏ¿┘è┘é ÏÀÏ▒┘è┘éÏ® Ϻ┘ä┘â┘ä┘àÏ® Ϻ┘ä┘à┘üϬϺϡ┘èÏ® Ï╣┘ä┘ë ┘ü┘ç┘à Ϻ┘ä┘à┘üÏ▒ϻϺϬ: ϿϡϽ ϬϼÏ▒┘èÏ¿┘è ┘ü┘è Ϻ┘ä┘àÏ»Ï▒Ï│Ï® Ϻ┘äϺϿϬϻϺϪ┘èÏ® Ϻ┘äÏÑÏ│┘äϺ┘à┘èÏ® Ï▒┘êÏÂÏ® Ϻ┘äϼ┘åÏ® ϿϺ┘èϺ┘â┘àÏ¿┘êÏ¡

Abstract

Ϻ┘äÏ║Ï▒Ï ┘à┘å ┘çÏ░Ϻ Ϻ┘äϿϡϽ ┘ç┘ê ┘ä┘àÏ╣Ï▒┘üÏ® ϬÏúϽ┘èÏ▒ ϬÏÀÏ¿┘è┘é ÏÀÏ▒┘è┘éÏ® Ϻ┘ä┘â┘ä┘àÏ® Ϻ┘ä┘à┘üϬϺϡ┘èÏ® Ï╣┘ä┘ë ┘ü┘ç┘à Ϻ┘ä┘à┘üÏ▒ϻϺϬ Ï╣┘åÏ» Ϭ┘äϺ┘à┘èÏ░ Ϻ┘ä┘àÏ»Ï▒Ï│Ï® Ϻ┘äϺϿϬϻϺϪ┘èÏ®. Ϭ┘à Ϻ┘äϿϡϽ ┘ü┘ë ┘åÏÁ┘ü Ϻ┘äÏ│┘åÏ® Ϻ┘äϽϺ┘å┘èÏ® Ï╣Ϻ┘à Ï»Ï▒ϺÏ│┘è ┘ó┘á┘í┘®/┘ó┘á┘ó┘á Ϻ┘ä┘àÏ»Ï▒Ï│Ï® Ϻ┘äϺϿϬϻϺϪ┘èÏ® Ϻ┘äÏÑÏ│┘äϺ┘à┘èÏ® Ï▒┘êÏÂÏ® Ϻ┘äϼ┘åÏ® ϿϺ┘èϺ┘â┘àÏ¿┘êÏ¡. Ïú┘àϺ ┘à┘å┘çϼ Ϻ┘äϿϡϽ ┘ç┘ê Ϻ┘äϿϡϽ Ϻ┘äϬϼÏ▒┘èÏ¿┘è ϿϬÏÁ┘à┘è┘à Ï┤Ï¿┘ç Ϻ┘äϬϼÏ▒Ï¿Ï® ϿϺÏ│ϬϫϻϺ┘à Ϻ┘äϺ┘àϬϡϺ┘å ┘âÏó┘äÏ® ϼ┘àÏ╣ Ϻ┘äÏ¿┘èϺ┘åϺϬ. ┘ê┘ä┘àÏ╣Ï▒┘üÏ® ┘êϼ┘êÏ» ϬÏúϽ┘èÏ▒ Ï»┘äϺ┘äÏ® ÏÑÏ¡ÏÁϺϪ┘èÏ® Ïú┘à ┘äϺ ┘ü┘èÏ│ϬÏ╣┘à┘ä Ϻ┘àϬϡϺ┘å t . ┘åϬ┘èϼϮ Ϻ┘äϿϡϽ Ϭϻ┘ä Ïú┘å ┘àÏ╣Ï»┘ä ┘åϬϺϪϼ Ϻ┘äϬÏ╣┘ä┘è┘à ┘ü┘è Ϻ┘ä┘üÏ▒┘éÏ® Ϻ┘äϬϼÏ▒Ï¿┘èÏ® Ï¿Ï╣Ï» ϺÏ│ϬÏ╣┘àϺ┘ä ÏÀÏ▒┘è┘éÏ® Ϻ┘ä┘â┘ä┘àÏ® Ϻ┘ä┘à┘üϬϺϡ┘èÏ® ┘ç┘è ┘º┘ÑÏî┘®┘ó ┘ê Ïú┘àϺ ┘àÏ╣Ï»┘ä ┘åϬϺϪϼ Ϻ┘äϬÏ╣┘ä┘è┘à ┘ü┘è Ϻ┘ä┘üÏ▒┘éÏ® Ϻ┘äÏÂϺϿÏÀÏ® Ï¿Ï»┘ê┘å ϺÏ│ϬÏ╣┘àϺ┘ä┘çϺ ┘ç┘ê ┘ª┘¿. ┘ê ┘åϬ┘èϼϮ Ϻ┘àϬϡϺ┘å t Ϭϻ┘ä Ï╣┘ä┘ë Ïú┘å ┘åϬ┘èϼϮÏú┘âÏ¿Ï▒ ┘à┘å ┘åϬ┘èϼϮ Ïî ┘ê┘ç┘è ┘á┘úÏî┘ó < ┘ó┘ºÏî┘¿ ┘üϺ┘ä┘üÏ▒┘êÏ Ϻ┘äÏ╣Ï»┘à┘è ┘àÏ▒Ï»┘êÏ» ┘êϺ┘ä┘üÏ▒┘êÏ Ϻ┘äϬϿϺϻ┘ä┘è ┘à┘éÏ¿┘ê┘ä Ïú┘è ÏÑ┘èϼϺϻ Ϻ┘ä┘üÏ▒┘é Ï¿┘è┘å ┘àÏ│Ϭ┘ê┘ë ┘ü┘ç┘à Ϻ┘ä┘à┘üÏ▒ϻϺϬ Ï╣┘åÏ» Ϻ┘äϬ┘äϺ┘à┘èÏ░ ┘ü┘ë Ϻ┘ä┘üÏ▒┘éÏ® Ϻ┘äϬϼÏ▒┘èÏ¿┘èÏ® ┘ê Ϻ┘ä┘üÏ▒┘éÏ® Ϻ┘äÏÂϺϿÏÀÏ®. ┘êϺ┘äÏ«┘äϺÏÁÏ® ┘à┘å ┘çÏ░Ϻ Ϻ┘äϿϡϽ ┘èÏ╣┘å┘è Ïú┘å ϬÏÀÏ¿┘è┘é ÏÀÏ▒┘è┘éÏ® Ϻ┘ä┘â┘ä┘àÏ® Ϻ┘ä┘à┘üϬϺϡ┘èÏ® ┘èÏñϽÏ▒ Ï╣┘ä┘ë ┘ü┘ç┘à Ϻ┘ä┘à┘üÏ▒ϻϺϬ Ï╣┘åÏ» Ϭ┘äϺ┘à┘èÏ░ Ϻ┘ä┘àÏ»Ï▒Ï│Ï® Ϻ┘äϺϿϬϻϺϪ┘èÏ®.