Puas brominated nplaim retardants txaus ntshai?

Cov txheej txheem:

Puas brominated nplaim retardants txaus ntshai?
Puas brominated nplaim retardants txaus ntshai?
Anonim

Xyoo 1977, University of California ntawm Berkeley biochemists Arlene Blum thiab Bruce Ames tau tshaj tawm tias cov tshuaj ua rau muaj kev pheej hmoo rau tib neeg kev noj qab haus huv. Lawv pom tias brominated tris tuaj yeem ua puas DNAthiab tej zaum absorbed los ntawm daim tawv nqaij.

Puas brominated nplaim retardants nyab xeeb?

Qee cov nplaim hluav taws kub hnyiab tau raug txheeb xyuas tas li, bioaccumulative, thiab tshuaj lom rau tib neeg thiab ib puag ncig thiab raug xav tias yuav ua rau muaj kev cuam tshuam txog kev coj tus cwj pwm thiab kev cuam tshuam endocrine.

Puas yog nplaim hluav taws muaj tshuaj lom rau tib neeg?

Nplaim Retardants tau pom tias ua rau muaj kev puas tsuaj rau lub paj hlwb, cuam tshuam cov tshuaj hormones, thiab mob qog noj ntshav. Ib qho kev phom sij loj tshaj plaws ntawm qee cov nplaim hluav taws kub yog tias lawv bioaccumulate hauv tib neeg, ua rau muaj teeb meem kev noj qab haus huv mus sij hawm ntev vim lub cev muaj cov tshuaj lom ntau dua thiab siab dua.

Puas yog brominated nplaim retardants carcinogenic?

Muaj pov thawj ntau ntxiv tias ntau cov tshuaj tua hluav taws tuaj yeem cuam tshuam rau endocrine, tiv thaiv kab mob, kev ua me nyuam, thiab lub paj hlwb. Qee qhov kev tshawb fawb tsiaj tau pom tias raug cov nplaim hluav taws ntev ntev tuaj yeem ua rau mob qog noj ntshav.

Cov nplaim hluav taws kub hnyiab npaum li cas?

Nplaim Retardants tau pom tias ua rau muaj kev puas tsuaj rau lub paj hlwb, cuam tshuam cov tshuaj hormones, thiab mob qog noj ntshav. Ib qho kev phom sij loj tshaj plaws ntawm qee cov nplaim hluav taws yog tias lawv bioaccumulate hauv tib neeg, ua rauCov teeb meem kev noj qab haus huv mus sij hawm ntev vim lub cev muaj cov tshuaj lom neeg ntau dua thiab siab dua.

Pom zoo:

Nthuav cov khoom
Lo lus prosodically txhais li cas?
Nyeem ntxiv

Lo lus prosodically txhais li cas?

hais txog lub suab thiab lub suab (=txoj kev tus neeg hais lus lub suab nce thiab ntog) ntawm cov lus: Prosodic nta ua lub luag haujlwm tseem ceeb hauv kev tsim cov qauv kev ntxhov siab hauv cov lus thiab kab lus. prosodic teebmeem zoo li suab thiab intonation.

Vim li cas kuaj cov qib calcitonin?
Nyeem ntxiv

Vim li cas kuaj cov qib calcitonin?

Kev kuaj calcitonin feem ntau yog siv txhawm rau kuaj xyuas C-cell hyperplasia thiab medullary thyroid cancer medullary thyroid cancer Medullary carcinoma yuav xa mus rau ib qho ntawm ntau hom qog nqaij hlav ntawm epithelial keeb kwm. Raws li lo lus "

Thaum twg st sebastian raug ntaus?
Nyeem ntxiv

Thaum twg st sebastian raug ntaus?

Nws tau raug ntaus los ntawm Pope Benedict XIV hauv 1743 thiab canonized hauv 1807 los ntawm Pope Pius VII. Thaum twg Sebastian dhau los ua neeg dawb huv? St. 288, Rome [Italy]; Hnub ua koob tsheej Lub Ib Hlis 20), cov ntseeg thaum ntxov tau nrov los ntawm cov neeg pleev kob Renaissance thiab ntseeg tias tau tua neeg thaum muaj kev tsim txom ntawm cov ntseeg los ntawm Roman huab tais Diocletian.