Cycle - a ... Kuyini umjikelezo? Yiziphi izihibe?

Bathi konke ukuphila cyclical. Ngokuvamile, lokhu kwasho ukuthi manje noma ngokuhamba kwesikhathi yonke eziphindaphindiwe othize embuthanweni, nakuba mhlawumbe ezingeni elisha qualitative. Ngakho yini esiyaziyo ngemijikelezo?

Incazelo kanye nencazelo emfushane

Nakubukwa jikelele, umjikelezo - ukulandelana okuphindayo imicimbi. Kukhona futhi izincazelo eziqondile. Ngokwesibonelo, igama elifanayo ingabonisa iqoqo izincwadi, zomculo noma ezinye, behlanganiswe umqondo ezivamile. Esifundweni sezibalo, umjikelezo avaliwe ngokuthi emaphethelweni ohlanganisa igrafu. Ngo-chemistry, i-eside ukhona. Kule ndawo loop - lokhu kucushwa ethile ukuzulazula kwama-athomu e-molecule, lapho akha polyline avaliwe. Kukhona umqondo zokumaketha. Kulesi isiyalo esivame ukukhuluma ngakho ezigabeni umjikelezo wokuphila komkhiqizo. Ngakho kulo mqondo isetshenziswa emikhakheni eminingi yesayensi. Nokho, ngokuvamile ungase uphawule ukuzwa umusho efana nebhizinisi noma umjikelezo kwezomnotho. Kusho ukuthini lokhu?

Imfundiso yokuziphendukela imijikelezo kwezomnotho

Sonke siyazi ukuthi ngezikhathi ezithile ngisho ohlelweni ivumelane kakhulu esimweni esibucayi. Kuyefana nasendleleni emnothweni emakethe. Ngisho emashumini eminyaka XVIII-XIX, ososayensi baye baqaphela ukuthi zinhlekelele zenzeka ngezikhathi mayelana alinganayo. Kanti ezinye izenzakalo, nayo njalo okuphindaphindiwe. Yiqiniso, lokhu akusho ukuthi ngaso sonke isikhathi kukhona eyodwa kuphela futhi okufanayo. Isigaba ngasinye okwalandela senzeka ezingeni qualitatively entsha, ukuze umnotho nganoma iyiphi indlela uqhubekela phambili.

Eqaphela ukuthi kukhona sibonelo, ososayensi baqala ukubheka izimbangela zalesi simo. Futhi naphezu kweqiniso lokuthi uchaze ukuthi ayengakwamukela kungenjalo, bekubonakala lwembula lenqwaba izici ezingase umsuka inqubo.

Kukhona izigaba ezine eziyinhloko zokuqonda le umjikelezo: kuyanda (yokutakula), ukwehla isiqongo (sokuntenga komnotho ezweni sihlalise) kanye nenhlekelele (ezansi ukucindezeleka). Ngemva kokuphela ukulandelana iqala lonke futhi. Ngayinye yalezi izigaba ine izimpawu ayo isici ngazo kalula ukuchaza.

Phakathi sokuntenga komnotho ezweni sihlalise encishisiwe ivolumu zokukhiqiza, ezikhulayo abangasebenzi, imali labantu ukuwa kube amavolumu ekuqongeleleni. Uma le nkathi kungapheli, ngoba kunciphisa intengo izindlela zokukhiqiza. Ekugcineni, lokhu kungase kuholele ekubeni deflation, ie amanani aphansi.

Iphuzu aphansi isimo sezomnotho - ukucindezeleka - libhekene leliphansi kakhulu umsebenzi, okukhipha, engenayo. Ngokuvamile, isikhathi esibucayi esikhathi esifushane, bese kuthi emva kwalokho iqala yokutakula noma yokutakula. Kungasebenti uwela futhi, ukuthola iholo kanye namazinga ukukhiqizwa enyuka njengoba amanani, okuyinto bathonywa ukwanda ukudingeka kwezinsiza. Le nkathi sithinta ekusebenzeni kwenqubo yasebhange.

Ukufinyelela ezingeni esiphezulu, lo mbukiso yi- ayisekho uyanda futhi seyisebenza ngokugcwele. Le nkathi ibizwa ngokuthi boom noma iphezulu kakhulu. Kuleli qophelo, umsebenzi ibhizinisi cishe hhayi okhula, kodwa ngesikhathi esifanayo ezingeni elifanayo. Umnotho kungase kubonakale elichumayo, kodwa ngemva isiqongo isimo sezomnotho ebuya futhi. umjikelezo ngamunye - lena ngenye esiteji ekuthuthukiseni.

zinhlobo

Kuye obuphelele, kukhona izinhlobo eziningana imijikelezo kwezomnotho, yona evame ukuqonda isici kuthinte izingxenye ezihlukahlukene zokuphila. Kwezinye imithombo kukhona amagama ehlukene, isibalo sezinye izinhlobo iyahlukahluka, kodwa ngokuvamile bathi 4, futhi ubahlambalaze lososayensi ababandakanyekayo kusivivinyo zabo:

1. Kitchin. Iningi iDemo - iminyaka 2-4. Njengomthetho, kuthinte lezimpahla imijikelezo, ukuntuleka kwemisebenzi, izinga lokwehla kwamandla emali, umkhiqizo wonyaka wonke ohlangene, ukubaluleka esitokisini.
2. Zhuglara. Ubude besikhathi - iminyaka 7-12. ukuhlukahluka Kubhekiwe e GNP ezidlula utshalomali notshwala. Futhi kuthinte umsebenzi kanye nokwehla kwamandla emali.
3. Smith. Isikhathi umjikelezo - iminyaka 16-25. Ngokujwayelekile ohambisana nesifanekiso izinqubo lokubala ubuningi babantu kanye lokuhamba sinomthelela emnothweni.
4. Kondratiev. Luthatha iminyaka engaba ngu-40-60. Kulolu chungechunge zikhona izinguquko entuthukweni yezobuchwepheshe nezinto izinguquko ezihlelekile.

Ngezinye izikhathi isehlane kanye nezinye izinhlobo, ezithinta izinqubo ngaphezulu emhlabeni jikelele. Nokho, imithombo eziningi ziyavumelana kungenxa esigabeni enjalo.

Izimbangela Ukuphinda

Abaningi ososayensi adumile waziphatha ucwaningo zezizathu umnotho ngokuphindaphindiwe badabula izigaba efanayo kanye nemicimbi, kodwa ifomu ukushintshwa. Kukhona umbono ezithakazelisayo, okuyinto kamuva sinqatshiwe, isibonelo, inikeza umbono esekelwe indawo ilanga izindawo, okuyinto ukuthi umvuno. Nge kwesikhathi, isintu ayisekho engaphansi ngakho kwezolimo. Bese kuba sobala ukuthi lapho ilanga lingashoni khona kungaba nethonya elinamandla ezinjalo.

Namuhla, kunamabandla izindlela ezintathu eziyinhloko yombuzo izimbangela ukuthuthukiswa komnotho cyclical. Omunye wabo uyachaza lesi simanga okuthonywa nayizimo yangaphakathi, elinye - yangaphandle, kanti eyesithathu - ukuqoqwa labo futhi abanye. Okwamanje, ucwaningo uyaqhubeka ukukhuluma ngokucacile mayelana izizathu zokuthi kungani imijikelezo kwezomnotho yentuthuko ezilandelana, akunakwenzeka. It uhlala ukuthatha leli qiniso ku-akhawunti e nokuhlelwa.

imijikelezo Esekela izinhlelo

Hhayi ngaphandle nokusetshenziswa kwegama elithi emsebenzini wakhe, futhi ososayensi computer. Lapha, umjikelezo ukulandelana kwemisebenzi ethile eyenziwa ngokuphindaphindiwe. Kungaba ngokuphelele noma okunemibandela. Uhlobo lokuqala ngezinye izikhathi ngisho ukubizwa ngokuthi obungapheli, ngoba ngezinye izikhathi indlela yokuphuma Esimweni esinjalo singanikezwanga. Esimeni sesibili, isizathu ukuqedwa ukusebenza umjikelezo kungenzeka ukuthola imiphumela ethile noma predetermined ezinikezwa.

Ukusebenzisa leli gama zabesifazane

Kwezokwelapha, leli gama kuba ezijwayele yilowo nalowo wesifazane omdala. Yiqiniso, mayelana umjikelezo wokuya esikhathini. Yilokhu enza elikushoyo nempilo yokuzalana, ikhono besifazane ukuba akhulelwe futhi ngempumelelo ukufika. Futhi iyiphi ezinkingeni ezingathi sína ziboniswe ngokushesha ku-lokuzala.

Kungani kuthiwa umjikelezo? Yiqiniso, ngenxa ukulandelana okuphindaphindiwe izinqubo ezithile. Kukhona ngisho division zibe izigaba umjikelezo: follicular, ovulatory futhi luteal. Ngasinye kulezi ezingenhla izigaba kukhona izinqubo ezihlukahlukene ezibalulekile. Enhlabathini - e ezikhiqiza amaqanda sikhule follicle, yimuphi iba evelele. On the yesibili - ukukhiqizwa kwamaqanda, okusho ukukhululwa kwe-Iqanda ngomumo ukuze sithele. Sonke lesi sikhathi, kwesibeletho silungiselela yokwamukela kungenzeka umbungu - ubuso bayo kwangaphakathi uphahlwe Indwangu ekhethekile. In the isinyathelo sokugcina, uma kokukhulelwa ingekho, umjikelezo uphela ukuqala kabusha. Lona uhlobo umbuthano wokuphila, elifuna njalo ukuqala.