232 research outputs found
Asian Americans’ Cancer Information Seeking, Fatalistic Belief, and Perceived Risk: Current Status and Relationships with Cancer Prevention and Detection Behaviors
This study pursues four research goals: (1) to examine Asian Americans and Asian ethnic groups’ (i.e., Chinese, Filipinos, Japanese, Koreans, Vietnamese) information seeking, fatalistic belief, and perceived risk of cancer, in comparison to non-Hispanic Whites; (2) to identify characteristics of Asian Americans who seek cancer information, hold fatalistic cancer belief, and perceive cancer risk; (3) to assess cancer prevention and detection behavior gaps between Asian Americans and Whites, and (4) to explore whether such gaps can be explained by cancer information seeking, fatalistic belief, and perceived risk. Data from 2011-2014 Health Information National Trends Surveys (HINTS) were analyzed. Asian Americans and most Asian ethnic groups were less likely to seek cancer information and perceive their cancer risk as lower than Whites. However, Asian Americans were less likely to hold some fatalistic beliefs (i.e., everything causes cancer, there are too many cancer prevention recommendations) than Whites. Asian Americans’ odds of engaging in breast cancer screening, physical activity, vegetable intake, and sun protection increased when cancer information seeking, fatalistic belief, and perceived risk of cancer were controlled
China’s new exchange rate regime, optimal basket currency and currency diversification
We build an optimising framework to analyse a class of economies that adopt an ECU-type basket currency while in transition to increased flexibility of the exchange rate regime. Instead of conventional basket pegging, such an economy uses an ECU-type currency index as a benchmark for monitoring and assessing exchange rate movements. This provides an anchoring device for the nations exchange rate regime and allows the home currencys exchange rate to fluctuate. Under the assumption that the central bank is chiefly interested in maintaining stability, the optimal structure of the basket currency is based on its contribution to minimizing the volatility of the countrys external account. A currency invariance index is applied to capture the effect of the countrys exit from exclusive linkage with the US dollar. The approach is illustrated by Chinese exchange rate policy. We find it advisable and viable for China to form a basket currency with a diversified portfolio of currencies. While the portfolios weighting scheme could favour the dollar, euro and Japanese yen, we show that the composition of the basket is open to a wide range of possibilities. Moreover, contrary to general fears, there is considerable potential for China to engage in currency diversification, which will not necessarily affect the dollars position.basket currency; currency diversification; China
Advanced research methods and their applications on the nexus of energy efficiency and environment: evidence from five RCEP economies
Using efficient and cleaner energy is environmentally friendly and
is vital for combating the negative effect of emissions on the
environment. Focusing on both developed and developing
nations, it is important to report their environmental conditions
while targeting economic and energy-related factors. In this
regard, the current study is an attempt to investigate the influence of energy efficiency (ENEF), financial inclusion (FIN), economic growth (GDP), environmental-related technological
innovation (ERTI), and human capital index (HCI) on the carbon
dioxide (CO2) emissions for the five selected nations of RCEP. The
variables are found associated in terms of long-run cointegration
relationships. The panel quantile regression estimator is utilized
for empirical estimations, which provide highly significant estimates across the three selected quantiles (25th, 50th and 75th).
The results report that FIN and GDP significantly aggravate environmental degradation by enhancing the CO2 emission level,
among which the strongest CO2 emission growth is found in the
second quantile. Besides, the ENEF, ERTI and HCI significantly
reduce CO2 emission. Based on the empirical findings, this study
provides practical implication focusing on the improvement of
energy efficiency policies and revising financial inclusion policies
in promotion of green investments
An enhanced and highly efficient semi-implicit combined Lagrange multiplier approach with preserving original energy law for dissipative systems
Recently, a new Lagrange multiplier approach was introduced by Cheng, Liu and
Shen in \cite{cheng2020new}, which has been broadly used to solve various
challenging phase field problems. To design original energy stable schemes,
they have to solve a nonlinear algebraic equation to determine the introduced
Lagrange multiplier, which can be computationally expensive, especially for
large-scale and long-time simulations involving complex nonlinear terms. This
paper presents an essential improved technique to modify this issue, which can
be seen as a semi-implicit combined Lagrange multiplier approach. In general,
the new constructed schemes keep all the advantages of the Lagrange multiplier
method and significantly reduce the computation costs. Besides, the new
proposed BDF2 scheme dissipates the original energy, as opposed to a modified
energy for the classical Lagrange multiplier approach in \cite{cheng2020new}.
We further construct high-order BDF schemes based on the new proposed
approach. In addition, we establish a general framework for extending our
constructed method to dissipative systems. Finally several examples have been
presented to demonstrate the effectiveness of the proposed approach
Energy stable and maximum bound principle preserving schemes for the Q-tensor flow of liquid crystals
In this paper, we propose two efficient fully-discrete schemes for Q-tensor
flow of liquid crystals by using the first- and second-order stabilized
exponential scalar auxiliary variable (sESAV) approach in time and the finite
difference method for spatial discretization. The modified discrete energy
dissipation laws are unconditionally satisfied for both two constructed
schemes. A particular feature is that, for two-dimensional (2D) and a kind of
three-dimensional (3D) Q-tensor flows, the unconditional
maximum-bound-principle (MBP) preservation of the constructed first-order
scheme is successfully established, and the proposed second-order scheme
preserves the discrete MBP property with a mild restriction on the time-step
sizes. Furthermore, we rigorously derive the corresponding error estimates for
the fully-discrete second-order schemes by using the built-in stability
results. Finally, various numerical examples validating the theoretical
results, such as the orientation of liquid crystal in 2D and 3D, are presented
for the constructed schemes
China’s new exchange rate regime, optimal basket currency and currency diversification
We build an optimising framework to analyse a class of economies that adopt an ECU-type basket currency while in transition to increased flexibility of the exchange rate regime. Instead of conventional basket pegging, such an economy uses an ECU-type currency index as a benchmark for monitoring and assessing exchange rate movements. This provides an anchoring device for the nation’s exchange rate regime and allows the home currency’s exchange rate to fluctuate. Under the assumption that the central bank is chiefly interested in maintaining stability, the optimal structure of the basket currency is based on its contribution to minimizing the volatility of the country’s external account. A currency invariance index is applied to capture the effect of the country’s exit from exclusive linkage with the US dollar. The approach is illustrated by Chinese exchange rate policy. We find it advisable and viable for China to form a basket currency with a diversified portfolio of currencies. While the portfolio’s weighting scheme could favour the dollar, euro and Japanese yen, we show that the composition of the basket is open to a wide range of possibilities. Moreover, contrary to general fears, there is considerable potential for China to engage in currency diversification, which will not necessarily affect the dollar’s position
China’s new exchange rate regime, optimal basket currency and currency diversification
We build an optimising framework to analyse a class of economies that adopt an ECU-type basket currency while in transition to increased flexibility of the exchange rate regime. Instead of conventional basket pegging, such an economy uses an ECU-type currency index as a benchmark for monitoring and assessing exchange rate movements. This provides an anchoring device for the nation’s exchange rate regime and allows the home currency’s exchange rate to fluctuate. Under the assumption that the central bank is chiefly interested in maintaining stability, the optimal structure of the basket currency is based on its contribution to minimizing the volatility of the country’s external account. A currency invariance index is applied to capture the effect of the country’s exit from exclusive linkage with the US dollar. The approach is illustrated by Chinese exchange rate policy. We find it advisable and viable for China to form a basket currency with a diversified portfolio of currencies. While the portfolio’s weighting scheme could favour the dollar, euro and Japanese yen, we show that the composition of the basket is open to a wide range of possibilities. Moreover, contrary to general fears, there is considerable potential for China to engage in currency diversification, which will not necessarily affect the dollar’s position
China’s new exchange rate regime, optimal basket currency and currency diversification
We build an optimising framework to analyse a class of economies that adopt an ECU-type basket currency while in transition to increased flexibility of the exchange rate regime. Instead of conventional basket pegging, such an economy uses an ECU-type currency index as a benchmark for monitoring and assessing exchange rate movements. This provides an anchoring device for the nation’s exchange rate regime and allows the home currency’s exchange rate to fluctuate. Under the assumption that the central bank is chiefly interested in maintaining stability, the optimal structure of the basket currency is based on its contribution to minimizing the volatility of the country’s external account. A currency invariance index is applied to capture the effect of the country’s exit from exclusive linkage with the US dollar. The approach is illustrated by Chinese exchange rate policy. We find it advisable and viable for China to form a basket currency with a diversified portfolio of currencies. While the portfolio’s weighting scheme could favour the dollar, euro and Japanese yen, we show that the composition of the basket is open to a wide range of possibilities. Moreover, contrary to general fears, there is considerable potential for China to engage in currency diversification, which will not necessarily affect the dollar’s position
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