P 500

04/01/2023 - "The study findings provide good insights that COVID-19 full vaccination immunizes accordingly to the S&P 500 index in the long run. "
02/25/2022 - "We study call options written on the S&P 500 stock market index across three market regimes: pre-COVID-19, COVID-19 market crash, and post-COVID-19 recovery. "
01/01/2021 - "This study investigates the drivers of the Standard & Poor's (S&P) 500 equity returns during the COVID-19 crisis era. "
05/01/2023 - "Unlike the Standard and Poor's (S&P) 500 index, the response of green bonds and ESG markets to pandemic progress is nonlinear: A low (large) level of confirmed new cases of COVID-19 has a positive (negative) impact. "
01/01/2023 - "This paper analyzes the moderation effect of government responses on the impact of the COVID-19 pandemic, proxied by the daily growth in COVID-19 cases and deaths, on the capital market, i.e., the S&P 500 firm's daily returns. "

01/01/2017 - "The diagnostic performance of PET/MR imaging was not significantly different from that of PET/CT plus multidetector CT in the assessment of tumor resectability (area under the receiver operating characteristic curve: 0.891 vs 0.776, respectively, for reviewer 1 [P = .109] and 0.859 vs 0.797 for reviewer 2 [P = .561]), N stage (accuracy: 54% [seven of 13 patients] vs 31% [four of 13 patients]; P = .250 for both reviewers), and M stage (accuracy: 94% [16 of 17 patients] vs 88% [15 of 17 patients] for reviewer 1 [P > .999] and 94% [16 of 17 patients] vs 82% [14 of 17 patients] for reviewer 2 [P = .500]). "
03/01/2009 - "FDG-PET/CT was significantly more sensitive than CT for detecting primary tumors (87.5% vs. 43.7%, P=.016), but their specificity did not differ (82.1% vs. 89.3%, P=.500). "
03/01/2018 - "Different NPs were injected into the tumors and then irradiated via laser diode (λ=670 nm, P=500 mW, and I= 3.5 W/cm2) at scheduled time. "

01/01/2022 - "Further analysis using the VAR model shows that a large proportion of the forecast variance of the Asian emerging stock markets is affected by the S&P 500 and that market shock starts to rise notably from the 1 to 10 period. "
01/12/2006 - "The rate of the reaction 1, HCO+O2-->HO2+CO, has been determined (i) at room temperature using a slow flow reactor setup (20 mbar<p<500 mbar) and (ii) in the temperature range 739 K<T<1108 K behind reflected shock waves (0.82 bar<p<1.84 bar) employing a perturbation approach. "

12/01/1998 - "The mean pain score during all 3 phases was similar (1.43 topical group and 1.51 peribulbar group; P = .500). "
04/01/2016 - "Clobetasol propionate application had no influence on LSR (P = .939), pain (P = .500), pruritus (P = .312), or AK cure rate (P = .991). "

06/01/1991 - "In contrast, the high dose of OT facilitated lordosis behavior during both the light and the dark phases but only in long-term ovariectomized females that were primed with large amounts of EB (2 x 10 micrograms) and P (500 micrograms). "
11/01/1994 - "In these experiments, systemic administration of scopolamine (0.031-4 mg/kg) inhibited lordosis in ovariectomized rats brought into receptivity by treatment with a low dose of estradiol benzoate (EB, 0.25 micrograms for 3 days) with progesterone (P, 500 micrograms for 1 day), or a high dose of EB (25 micrograms for 3 days) with and without P. "