English
Hujayra o'sish egri chizig'i hujayralarning mutlaq o'sish sonini aniqlashning keng tarqalgan usuli, hujayra hayotiyligini aniqlashning muhim ko'rsatkichi va ekilgan hujayralarning biologik xususiyatlarining asosiy parametrlaridan biridir. hujayra fabrikasi asosan yopishgan hujayralar madaniyati uchun ishlatiladi, shuning uchun hujayra o'sishi egri chizig'ini qanday chizish mumkin?
Umuman olganda, hujayralar o'tkazilgandan so'ng, ular qisqa vaqt davomida to'xtatiladi va keyin yopishadi. devor, so'ngra turli uzunlikdagi turli inkubatsiya davrlarini o'tkazadi, ya'ni ular massiv bo'linishning eksponensial o'sish bosqichiga kiradi. Hujayralar to'yingan zichlikka erishgandan so'ng, ular o'sishni to'xtatadilar, plato bosqichiga o'tadilar va keyin degeneratsiyalanadi va o'ladi. Butun jarayonda hujayralar sonining dinamik o'zgarishini to'g'ri tasvirlash uchun odatiy o'sish egri chizig'ini to'rt qismga bo'lish mumkin: sekin o'sadigan yashirin davr, katta qiyalikli eksponensial o'sish davri, plato shaklidagi tekis tepalik. davr, degeneratsiya va parchalanish. O'sish egri chizig'i yashovchan hujayralar sonini (10 000/ml) madaniyat vaqtiga (soat yoki d) solishtirish orqali olingan.
1. Kuluçka muddati: Ovqat hazm qilish va o'tish hujayralarga ta'sir qiladi, shuning uchun davolangan hujayralar yangi o'sish muhitiga qayta moslashishi kerak. Birlamchi hujayralar uchun kamida 24-96 soat, o'lmas hujayralar uchun esa 6-24 soat kerak bo'ladi;
2. Logarifmik o'sish bosqichi: Bu fazadagi hujayralar soni logarifmik o'sish tendentsiyasini ko'rsatadi. Logarifmik o'sish davri har xil hujayra turlariga qarab farq qiladi, odatda 3-5 kun;
3. Staz fazasi: Umuman olganda, hujayralar bir qatlam hosil qilish uchun o'sib boradi. Aloqa muhiti va hujayralar soni o'zaro mos darajaga yetganda, hujayralar endi o'smaydi va faollik turg'un bosqichda bo'ladi.
Hujayra fabrikasida hujayralarning o'sish egri chizig'ini kuzatish orqali biz tushunishimiz mumkin Hujayralarning ko'payish tezligini tahlil qilish va hujayra o'tish vaqtini, kriyokonservalash va dori qo'shilishini aniqlash uchun hujayralarning o'sish jarayoni.
The FAI climbed 5.9 percent year-on-year in the first 11 months of 2018, quickening from the 5.7-percent growth in Jan-Oct, the National Bureau of Statistics (NBS) said Friday in an online statement.
The key indicator of investment, dubbed a major growth driver, hit the bottom in August and has since started to rebound steadily.
In the face of emerging economic challenges home and abroad, China has stepped up efforts to stabilize investment, in particular rolling out measures to motivate private investors and channel funds into infrastructure.
Friday's data showed private investment, accounting for more than 60 percent of the total FAI, expanded by a brisk 8.7 percent.
NBS spokesperson Mao Shengyong said funds into weak economic links registered rapid increases as investment in environmental protection and agriculture jumped 42 percent and 12.5 percent respectively, much faster than the average.
In breakdown, investment in high-tech and equipment manufacturing remained vigorous with 16.1-percent and 11.6-percent increases respectively in the first 11 months. Infrastructure investment gained 3.7 percent, staying flat. Investment in property development rose 9.7 percent, also unchanged.