Quenching is a key topic in exploring the formation and evolution of galaxies. In this work, we study quenching rate, i.e., variation fraction quenched galaxies per unit time, Illustris-1 simulation. By building function $f(m,\rho, t)$ each snapshot simulation, derive an accurate form rate as $\Re_q=df(m,\rho,t)/dt$. According to analytic expression $\Re_q$, split it into four components: mass ...

conclusion dt-sfp can improve the detection of relatively early bone abnormalities in acetabular and proximal femur compared with conventional radiography. dt-sfp can also observe the abnormal impact between acetabular and proximal femur. patients and methods ninety-four consecutive patients with discomfort around the hip joint underwent dt-sfp and conventional radiography. the imaging features...

To investigate the possibility that mesenchyme can alter the neoplastic properties of an established carcinoma, small (0.5-mm cubes) pieces of the Dunning prostatic adenocarcinoma (DT) were grown in association with seminal vesicle mesenchyme (SVM) for 1 mo. Differentiated DT epithelial cells harvested from the resultant tissue recombinants (1 degree SVM + DT) were recombined with fresh SVM to ...

dried fruit mite, carpoglyphus lactis l. not only to being one of the serious and economic pests of some stored products, but also to be used as an alternative prey for commercially mass rearing of predatory mites. in this study, life table parameters of dried fruit mite were examined on baker's yeast under laboratory conditions at three photoperiods including full darkness, full light and 16 :...

trissolcus grandis (thomson) (hymenoptera: scelionidae) is the most important egg parasitoid of the common sunn pest, eurygaster integriceps puton (hemiptera: scutelleridae) in iran. demographic characteristics may be used for preliminary screening of parasitoid species or populations as well as for predicting their efficiency under different physical conditions in the field. in this study, the...

life table gives the most comprehensive explanation of the survivorship, development, and reproduction of a population. the life table parameters of an aphidophagous midge, aphidoletes aphidimyza were studied on different densities (5, 10, 20, 40, 60, 80) of third instar nymphs of aphis gossypii as prey in a growth chamber (25 ± 1 °c, 70 ± 5% rh and a photoperiod of 16l: 8d h). the pre-oviposit...

Immature development and reproductive life history of Delphastus catalinae (Horn) (Coleoptera: Coccinellidae) feeding on Bemisia tabaci biotype B (Gennadius) (Homoptera: Aleyrodidae) (= B. argentifolii Bellows and Perring) immatures was studied at three constant temperatures: 22, 26 and 30 oC. Lower developmental threshold temperatures (T0) were estimated at 9 and 9.9 oC, for males and females,...

BACKGROUND A survival benefit has been observed with salvage radiation therapy (RT) for prostate-specific antigen (PSA) failure after radical prostatectomy (RP) in men with rapid rises in PSA doubling time (DT, < 6 months). Whether such a benefit exits in men with a protracted PSA rise in DT (≥ 6 months) is unclear and was examined in the current study. METHODS Of 4036 men who underwent RP at...

We have examined the kinetic mechanism for binding of the homotetrameric Escherichia coliSSB protein to single-stranded oligodeoxynucleotides [(dT)(70) and (dT)(35)] under conditions that favor the formation of a fully wrapped ssDNA complex in which all four subunits interact with DNA. Under these conditions, a so-called (SSB)(65) complex is formed in which either one molecule of (dT)(70) or tw...