Growth and energy budget of the polychaete,Neanthes japonica,at various temperatures(17,20,23,26 and 29℃) were investigated in this study. The growth,as indicated by final dry weight and specific growth rate(SGR),inc...Growth and energy budget of the polychaete,Neanthes japonica,at various temperatures(17,20,23,26 and 29℃) were investigated in this study. The growth,as indicated by final dry weight and specific growth rate(SGR),increased with increasing temperature,with the maximum level at 26℃,and then decreased significantly at 29℃. A similar trend was observed in feeding rate,food conversion efficiency(FCE) and apparent digestive rate(ADR). However,no significant differences were detected in ADR among all the temperature treatments. In the pattern of energy allocation,faeces energy was only a small component of energy budget and had little influence on the proportion of food energy allocated to growth. The metabolic energy accounted for a large portion of energy intake for each temperature treatment. The nitrogen excretion was appreciable with changing temperature. The two expenditure terms(respiration energy and excretion energy) in energy budget were the major factors influencing the proportion of food energy allocated to growth. These results revealed that temperature affected the growth of N. japonica mainly by influencing feeding rate and FCE. In addition,regression equations describing the relationship between feeding rate,faecal production,SGR,FCE and temperature were obtained. The optimum temperatures for feeding rate,FCE and SGR were estimated at 25.01℃,24.24℃ and 24.73 ℃,respectively,from the regression equations.展开更多
Empirical studies have shown that a large number of financial asset returns exhibit fat tails （leptokurtosis） and are often characterized by volatility clustering and asymmetry. This paper considers the ability of t...Empirical studies have shown that a large number of financial asset returns exhibit fat tails （leptokurtosis） and are often characterized by volatility clustering and asymmetry. This paper considers the ability of the GARCH-Type （Generalized Autoregressive Conditional Heteroskedasticity） models to capture the stylized features of volatility in national stock market returns for three countries （Portugal, Spain and Greece）. The results of this paper suggest that in the presence of asymmetric responses to innovations in the market, the ARMA （1,1）-GJRGARCH（1,1） skewed Student-t model which accommodates both the skewness and the kurtosis of financial time series is preferred.展开更多
Intravenous immunoglobulin(IVIG) is biological product, which is extensively used in pediatric patients, with high adverse effects on children among different brand preparations. In the present study, we aimed to desc...Intravenous immunoglobulin(IVIG) is biological product, which is extensively used in pediatric patients, with high adverse effects on children among different brand preparations. In the present study, we aimed to describe the adverse events of pediatric patients given IVIG infusions in China. Data were collected from all patients receiving IVIG infusion at the largest children’s hospital in Ningbo of China form January 2015 to December 2017. Descriptive statistics was used. A total of 2100 patients received IVIG infusion. All the patients who experienced adverse reactions were children(0.48%), with the highest frequency of infusion among those age 1 to 3 years old(40%). Among 10 infusions with adverse reactions, the most common indication was Kawasaki disease(40%) followed by severe pneumonia(30%). Rash was the most common adverse event(80%), followed by chest pain & cough(50%) and cyanosis(40%). Adverse events were observed to occur most frequently within 30 min from onset of infusion. Most of the reactions occurred with the large dose and the indications of used for. Since the hospital changed the brand, the incidence of adverse reactions was decreased from 1.39% to 0.13%. In this study, 0.48% of pediatric patients given IVIG infusions experienced adverse events. Anaphylactoid reaction was the most common manifestation. Symptoms occurred within 30 min from onset of infusion, which were affected by the dose, the value of lgE, the indications and the different brands.展开更多
基金supported by the National Natural Sci-ence Foundation of China (No. 30490233).
文摘Growth and energy budget of the polychaete,Neanthes japonica,at various temperatures(17,20,23,26 and 29℃) were investigated in this study. The growth,as indicated by final dry weight and specific growth rate(SGR),increased with increasing temperature,with the maximum level at 26℃,and then decreased significantly at 29℃. A similar trend was observed in feeding rate,food conversion efficiency(FCE) and apparent digestive rate(ADR). However,no significant differences were detected in ADR among all the temperature treatments. In the pattern of energy allocation,faeces energy was only a small component of energy budget and had little influence on the proportion of food energy allocated to growth. The metabolic energy accounted for a large portion of energy intake for each temperature treatment. The nitrogen excretion was appreciable with changing temperature. The two expenditure terms(respiration energy and excretion energy) in energy budget were the major factors influencing the proportion of food energy allocated to growth. These results revealed that temperature affected the growth of N. japonica mainly by influencing feeding rate and FCE. In addition,regression equations describing the relationship between feeding rate,faecal production,SGR,FCE and temperature were obtained. The optimum temperatures for feeding rate,FCE and SGR were estimated at 25.01℃,24.24℃ and 24.73 ℃,respectively,from the regression equations.
文摘Empirical studies have shown that a large number of financial asset returns exhibit fat tails （leptokurtosis） and are often characterized by volatility clustering and asymmetry. This paper considers the ability of the GARCH-Type （Generalized Autoregressive Conditional Heteroskedasticity） models to capture the stylized features of volatility in national stock market returns for three countries （Portugal, Spain and Greece）. The results of this paper suggest that in the presence of asymmetric responses to innovations in the market, the ARMA （1,1）-GJRGARCH（1,1） skewed Student-t model which accommodates both the skewness and the kurtosis of financial time series is preferred.
基金Wenzhou Science and Technology Program(Grant No.Y20160012)
文摘Intravenous immunoglobulin(IVIG) is biological product, which is extensively used in pediatric patients, with high adverse effects on children among different brand preparations. In the present study, we aimed to describe the adverse events of pediatric patients given IVIG infusions in China. Data were collected from all patients receiving IVIG infusion at the largest children’s hospital in Ningbo of China form January 2015 to December 2017. Descriptive statistics was used. A total of 2100 patients received IVIG infusion. All the patients who experienced adverse reactions were children(0.48%), with the highest frequency of infusion among those age 1 to 3 years old(40%). Among 10 infusions with adverse reactions, the most common indication was Kawasaki disease(40%) followed by severe pneumonia(30%). Rash was the most common adverse event(80%), followed by chest pain & cough(50%) and cyanosis(40%). Adverse events were observed to occur most frequently within 30 min from onset of infusion. Most of the reactions occurred with the large dose and the indications of used for. Since the hospital changed the brand, the incidence of adverse reactions was decreased from 1.39% to 0.13%. In this study, 0.48% of pediatric patients given IVIG infusions experienced adverse events. Anaphylactoid reaction was the most common manifestation. Symptoms occurred within 30 min from onset of infusion, which were affected by the dose, the value of lgE, the indications and the different brands.
