Releases of manganese and iron ions from an albic soil (Albic-Udic Luvisol), a yellow-red soil (Hap-Udic Ferrisol) and a yellow-brown soil (Arp-Udic Luvisol) induced by calcium salt addition and their bioavailability ...Releases of manganese and iron ions from an albic soil (Albic-Udic Luvisol), a yellow-red soil (Hap-Udic Ferrisol) and a yellow-brown soil (Arp-Udic Luvisol) induced by calcium salt addition and their bioavailability to pepper (Capsicum frutescens L.) were studied in a pot experiment. Addition of Ca(NO3)2 decreased soil pH and increased both exchangeable and DTPA (diethylenetriamine pentaacetic acid)-extractable Mn and Fe in soils. Meanwhile, total Mn accumulation in the shoots of Capsicum frutescens L. on the salt-treated soils increased significantly (P ＜ 0.01) compared with the control, suggesting that salt addition to soil induced Mn toxicity in Capsicum frutescens L. Although exchangeable and DTPA-extractable Fe increased also in the salt-treated soils, Fe uptake by the shoots of Capsicum frutescens L. decreased. The effect of added salts in soils on dry matter weight of pepper varied with the soil characteristics, showing different buffer capacities of the soils for salt toxicity in an order of yellow-brown soil ＞ albic soil ＞ yellow-red soil. Fe/Mn ratio in shoots of Capsicum frutescens L. decreased with increasing salt addition for all the soils, which was ascribed to the antagonistic effect of Mn on Fe accumulation. The ratio of Fe/Mn in the tissue was a better indicator of the appearance of Mn toxicity symptoms than Mn concentration alone.展开更多
Objective: to analyze and study the effects of total intravenous anesthesia and inhalation anesthesia on anesthesia effect and postoperative cognitive function in elderly patients. Methods: 70 elderly patients undergo...Objective: to analyze and study the effects of total intravenous anesthesia and inhalation anesthesia on anesthesia effect and postoperative cognitive function in elderly patients. Methods: 70 elderly patients undergoing surgical treatment in our hospital were selected as the research object. From September 2020 to September 2021, all patients were divided into reference group (inhalation anesthesia) and study group (total intravenous anesthesia) by coin tossing method. There were 35 cases in each group. The anesthetic effect, quality of life and cognitive function of the two groups were compared. Results: the effective rate of anesthesia in the study group was significantly higher than that in the reference group (P < 0.05), and the scores of quality of life and MMES were significantly better than those in the reference group (P < 0.05). Conclusion the clinical effect of total intravenous anesthesia is more significant, the anesthetic effect is better, and the quality of life and cognitive function of patients have been significantly improved. It has popularization value.展开更多
With the rapid development of economy, the scale of enterprises is constantly expanding, the market situation and competitive pressure are gradually increasing, and enterprise managers are gradually aware of the impor...With the rapid development of economy, the scale of enterprises is constantly expanding, the market situation and competitive pressure are gradually increasing, and enterprise managers are gradually aware of the importance of financial internal control. The traditional financial management model can no longer meet the development needs of enterprises under the new situation. In order to further improve the financial management level of enterprises, it is necessary to change the traditional financial internal control management model, apply the refinement concept to the financial internal control management of enterprises, increase the attention to each link in financial management, standardize the financial internal control management and give full play to its value in enterprise management. Based on this, this paper focuses on the analysis of the practical application of refined management concept in the current financial internal control of Chinese enterprises, for reference.展开更多
基金Project supported by the Natural Science Foundation of Anhui Province (No. 00023069) the Ecological Experiment Station of Red Soil, Chinese Academy of Sciences and the Knowledge Innovative Program of the Chinese Academy of Sciences (No. KZCX2-401).
文摘Releases of manganese and iron ions from an albic soil (Albic-Udic Luvisol), a yellow-red soil (Hap-Udic Ferrisol) and a yellow-brown soil (Arp-Udic Luvisol) induced by calcium salt addition and their bioavailability to pepper (Capsicum frutescens L.) were studied in a pot experiment. Addition of Ca(NO3)2 decreased soil pH and increased both exchangeable and DTPA (diethylenetriamine pentaacetic acid)-extractable Mn and Fe in soils. Meanwhile, total Mn accumulation in the shoots of Capsicum frutescens L. on the salt-treated soils increased significantly (P ＜ 0.01) compared with the control, suggesting that salt addition to soil induced Mn toxicity in Capsicum frutescens L. Although exchangeable and DTPA-extractable Fe increased also in the salt-treated soils, Fe uptake by the shoots of Capsicum frutescens L. decreased. The effect of added salts in soils on dry matter weight of pepper varied with the soil characteristics, showing different buffer capacities of the soils for salt toxicity in an order of yellow-brown soil ＞ albic soil ＞ yellow-red soil. Fe/Mn ratio in shoots of Capsicum frutescens L. decreased with increasing salt addition for all the soils, which was ascribed to the antagonistic effect of Mn on Fe accumulation. The ratio of Fe/Mn in the tissue was a better indicator of the appearance of Mn toxicity symptoms than Mn concentration alone.
文摘Objective: to analyze and study the effects of total intravenous anesthesia and inhalation anesthesia on anesthesia effect and postoperative cognitive function in elderly patients. Methods: 70 elderly patients undergoing surgical treatment in our hospital were selected as the research object. From September 2020 to September 2021, all patients were divided into reference group (inhalation anesthesia) and study group (total intravenous anesthesia) by coin tossing method. There were 35 cases in each group. The anesthetic effect, quality of life and cognitive function of the two groups were compared. Results: the effective rate of anesthesia in the study group was significantly higher than that in the reference group (P < 0.05), and the scores of quality of life and MMES were significantly better than those in the reference group (P < 0.05). Conclusion the clinical effect of total intravenous anesthesia is more significant, the anesthetic effect is better, and the quality of life and cognitive function of patients have been significantly improved. It has popularization value.
文摘With the rapid development of economy, the scale of enterprises is constantly expanding, the market situation and competitive pressure are gradually increasing, and enterprise managers are gradually aware of the importance of financial internal control. The traditional financial management model can no longer meet the development needs of enterprises under the new situation. In order to further improve the financial management level of enterprises, it is necessary to change the traditional financial internal control management model, apply the refinement concept to the financial internal control management of enterprises, increase the attention to each link in financial management, standardize the financial internal control management and give full play to its value in enterprise management. Based on this, this paper focuses on the analysis of the practical application of refined management concept in the current financial internal control of Chinese enterprises, for reference.
