1,378 research outputs found
Comparison of adalimumab and secukinumab with respect to short-term efficacy and recurrence in moderate-tosevere psoriasis patients
Purpose: To compare the short-term efficacy and recurrence of moderate-to-severe psoriasis patients through adalimumab and secukinumab.Methods: A total of 180 patients treated in 970 Hospital of the PLA Joint Logistics Support Force from April 2019 to November 2021 were enrolled in this study. They were assigned to groups A (100 cases treated with secukinumab) and B (80 patients treated with adalimumab). Before and after treatment, the IL-23, TNF-α and 25 (OH) D levels, psoriasis area and severity index (PASI), physician global assessment (PGA), dermatology life quality index (DLQI), compliance with treatment, treatment effectiveness, incidence of adverse reactions, and short-term recurrence were assessed.Results: After treatment, the TNF-α and IL-23 levels decreased in group A, while the 25 (OH) D level increased (p < 0.05). In comparison to group B, PASI, PGA and DLQI scores in group A were lower (p < 0.05). Compliance in group A was lower (p = 0.002), while total treatment effectiveness was higher (p < 0.001). The incidence of adverse reactions (p =0.004) and frequency of short-term recurrence (p = 0.005) in group A were lower.Conclusion: The short-term efficacy of secukinumab in moderate-to-severe psoriasis patients is higherthan that of adalimumab, while recurrence is lower. Thus, secukinumab shows greater benefits than adalimumab for the treatment psoriasis
Perturbative corrections to form factors in QCD
We compute perturbative QCD corrections to form factors at leading
power in , at large hadronic recoil, from the light-cone sum rules
(LCSR) with -meson distribution amplitudes in HQET. QCD factorization for
the vacuum-to--meson correlation function with an interpolating current for
the -meson is demonstrated explicitly at one loop with the power counting
scheme . The jet
functions encoding information of the hard-collinear dynamics in the
above-mentioned correlation function are complicated by the appearance of an
additional hard-collinear scale , compared to the counterparts entering
the factorization formula of the vacuum-to--meson correction function for
the construction of from factors. Inspecting the
next-to-leading-logarithmic sum rules for the form factors of indicates that perturbative corrections to the hard-collinear functions
are more profound than that for the hard functions, with the default theory
inputs, in the physical kinematic region. We further compute the subleading
power correction induced by the three-particle quark-gluon distribution
amplitudes of the -meson at tree level employing the background gluon field
approach. The LCSR predictions for the semileptonic form
factors are then extrapolated to the entire kinematic region with the
-series parametrization. Phenomenological implications of our determinations
for the form factors are explored by investigating the
(differential) branching fractions and the ratio of
and by determining the CKM matrix element from the total decay rate
of .Comment: 49 pages, 8 figures, version accepted for publication in JHE
QCD calculations of form factors with higher-twist corrections
We update QCD calculations of form factors at large hadronic
recoil by including the subleading-power corrections from the higher-twist
-meson light-cone distribution amplitudes (LCDAs) up to the twist-six
accuracy and the strange-quark mass effects at leading-power in
from the twist-two -meson LCDA . The higher-twist
corrections from both the two-particle and three-particle -meson LCDAs are
computed from the light-cone QCD sum rules (LCSR) at tree level. In particular,
we construct the local duality model for the twist-five and -six -meson
LCDAs, in agreement with the corresponding asymptotic behaviours at small quark
and gluon momenta, employing the QCD sum rules in heavy quark effective theory
at leading order in . The strange quark mass effects in semileptonic
form factors yield the leading-power contribution in the heavy quark
expansion, consistent with the power-counting analysis in soft-collinear
effective theory, and they are also computed from the LCSR approach due to the
appearance of the rapidity singularities. We further explore the
phenomenological aspects of the semileptonic decays and
the rare exclusive processes , including the determination of
the CKM matrix element , the normalized differential
distributions and precision observables defined by the ratios of branching
fractions for the above-mentioned two channels in the same intervals of .Comment: 36 pages, 9 figure
Investor Overconfidence and the Forward Premium Puzzle
We offer an explanation for the forward premium puzzle in foreign exchange markets based upon investor overconfidence. In the model, overconfident individuals overreact to their information about future inflation, which causes greater overshooting in the forward rate than in the spot rate. Thus, when agents observe a signal of higher future inflation, the consequent rise in the forward premium predicts a subsequent downward correction of the spot rate. The model can explain the magnitude of the forward premium bias and several other stylized facts related to the joint behavior of forward and spot exchange rates. Our approach is also consistent with the availability of profitable carry trade strategies.
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