Several studies have reported on the capabilities of different yeasts to utilize hydrocarbons hence the need to ascertain the petroleum hydrocarbon biodegradation potential of yeast isolated from palm wine. The study ...Several studies have reported on the capabilities of different yeasts to utilize hydrocarbons hence the need to ascertain the petroleum hydrocarbon biodegradation potential of yeast isolated from palm wine. The study aimed at isolation, characterization and testing of yeasts from palm wine for biodegradation of petroleum hydrocarbons. Hydrocarbon utilizing yeasts (HUY) were isolated from palm wine, a rich sugar substrate from a non-oil impacted environment using Bacto Bushnell Haas broth. The medium composed of 0.2 g MgSO<sub>4</sub>, 0.02 g CaCl<sub>2</sub>, 1 g KH<sub>2</sub>PO<sub>4</sub>, 1 g K<sub>2</sub>HPO<sub>4</sub>, 0.05 g FeCl<sub>2</sub>, 1 g/L NH<sub>4</sub>NO<sub>3</sub>, pH (7.2 ± 0.2) and mineral salt broth comprising of 4.4 g KH<sub>2</sub>PO<sub>4</sub>, 8 g (NH<sub>4</sub>)<sub>2</sub>SO<sub>4</sub>, 2 g Na<sub>2</sub>HPO<sub>4</sub>·H<sub>2</sub>O, MgSO<sub>4</sub>ܭH<sub>2</sub>O, 0.1 g FeSO<sub>4</sub>, 0.01 g/L CaCl<sub>2</sub>, pH (4.5 ± 0.2) supplemented with palm wine (0.5%) and crude oil (1%). Yeasts isolated from an enriched medium and palm wine showed similarities. Yeast isolates were further screened for hydrocarbon degrading potentials using the Bacto Bushnell Haas broth containing 2, 6-dichlorophenol indophenols as the indicator agent. The isolates were identified using microscopic, macroscopic, fermentation and molecular characteristics as Candida adriatica (ZIM 2468) and Candida taoyuanica (MYA-4700).展开更多
The Hui Medicine in China, as an important part of traditional Chinese medicine, has a long history. It originated from the unique medical knowledge and practices of the Hui ethnic group and impacted the health of peo...The Hui Medicine in China, as an important part of traditional Chinese medicine, has a long history. It originated from the unique medical knowledge and practices of the Hui ethnic group and impacted the health of people of all ethnic groups in the whole nation. Over time, it has continuously absorbed and integrated the essence of various medical systems. In ancient times, Hui doctors made important contributions with their superb medical skills. They passed on their medical wisdom from generation to generation. In modern times, with the development of science and technology, Hui Medicine has also been constantly evolving and innovating, combining modern medical concepts and technologies. It has played an active role in protecting people’s health and promoting medical progress in China. Although facing challenges, it still strives to inherit and develop, showing strong vitality.展开更多
Linguistic landscape has become an emerging research topic in sociolinguistics due to the development of urban linguistic landscape.Based on the development of linguistic landscape in TaiKoo Hui,its diverse characteri...Linguistic landscape has become an emerging research topic in sociolinguistics due to the development of urban linguistic landscape.Based on the development of linguistic landscape in TaiKoo Hui,its diverse characteristics are analyzed,and the language signs,usage,and codes are summarized.It is found that there is poor transmission effect of multilingual landscape information and improper use of linguistic landscape in TaiKoo Hui.This paper concludes that the linguistic landscape of Taikoo Hui can be optimized from two aspects to enhance its attractiveness and competitiveness,including improving the informational function of foreign language signs and regulating the use of linguistic landscape.展开更多
[Objective]This study was to reveal the photo-physiological properties and suitable climate conditions for potato growth,so as to improve potato quality and yield by making use of the climate resources in Ningxia Hui ...[Objective]This study was to reveal the photo-physiological properties and suitable climate conditions for potato growth,so as to improve potato quality and yield by making use of the climate resources in Ningxia Hui Autonomous Region,to intensively develop the special agriculture there to enhance the economic benefit of local people.[Method]Using CIRASⅠ-Portable Photosynthesis System,we measured the daily change of photo-physiological indices of potato and further analyzed their relationship with daily weather change,and investigated the impacts of climate factors including atmospheric temperature,humidity,CO2 concentration and light intensity on various physiological indices of potato at key growth stages（flowering stage and stem-swelling stage）.[Results]The results showed that（1） humidity in experimental field assumed a ＂ U＂ type cosine variation curve,while photosynthetically active radiation and atmospheric temperature presented a reverse variation trend;（2） atmospheric CO2 concentration was positively correlated with intercellular CO2 concentration of potato cells,both assumed double ＂ W＂ type curve for daily change;（3） during growth period of potato,in the sunny days with appropriate relative humidity,physiological indices including photosynthetic rate,transpiration rate and stomatal conductance presented similar change law with environmental factor photosynthetically active radiation,all appearing an ＂ M＂ type curve with double peaks and a typical midday depression;（4） midday depression caused by to higher light intensity always appeared simultaneously with the maximum and minimum of air temperature.[Conclusion]Our results provided scientific basis for the large scale production of potato in Ningxia Hui Autonomous Region.展开更多
文摘Several studies have reported on the capabilities of different yeasts to utilize hydrocarbons hence the need to ascertain the petroleum hydrocarbon biodegradation potential of yeast isolated from palm wine. The study aimed at isolation, characterization and testing of yeasts from palm wine for biodegradation of petroleum hydrocarbons. Hydrocarbon utilizing yeasts (HUY) were isolated from palm wine, a rich sugar substrate from a non-oil impacted environment using Bacto Bushnell Haas broth. The medium composed of 0.2 g MgSO<sub>4</sub>, 0.02 g CaCl<sub>2</sub>, 1 g KH<sub>2</sub>PO<sub>4</sub>, 1 g K<sub>2</sub>HPO<sub>4</sub>, 0.05 g FeCl<sub>2</sub>, 1 g/L NH<sub>4</sub>NO<sub>3</sub>, pH (7.2 ± 0.2) and mineral salt broth comprising of 4.4 g KH<sub>2</sub>PO<sub>4</sub>, 8 g (NH<sub>4</sub>)<sub>2</sub>SO<sub>4</sub>, 2 g Na<sub>2</sub>HPO<sub>4</sub>·H<sub>2</sub>O, MgSO<sub>4</sub>ܭH<sub>2</sub>O, 0.1 g FeSO<sub>4</sub>, 0.01 g/L CaCl<sub>2</sub>, pH (4.5 ± 0.2) supplemented with palm wine (0.5%) and crude oil (1%). Yeasts isolated from an enriched medium and palm wine showed similarities. Yeast isolates were further screened for hydrocarbon degrading potentials using the Bacto Bushnell Haas broth containing 2, 6-dichlorophenol indophenols as the indicator agent. The isolates were identified using microscopic, macroscopic, fermentation and molecular characteristics as Candida adriatica (ZIM 2468) and Candida taoyuanica (MYA-4700).
文摘The Hui Medicine in China, as an important part of traditional Chinese medicine, has a long history. It originated from the unique medical knowledge and practices of the Hui ethnic group and impacted the health of people of all ethnic groups in the whole nation. Over time, it has continuously absorbed and integrated the essence of various medical systems. In ancient times, Hui doctors made important contributions with their superb medical skills. They passed on their medical wisdom from generation to generation. In modern times, with the development of science and technology, Hui Medicine has also been constantly evolving and innovating, combining modern medical concepts and technologies. It has played an active role in protecting people’s health and promoting medical progress in China. Although facing challenges, it still strives to inherit and develop, showing strong vitality.
文摘Linguistic landscape has become an emerging research topic in sociolinguistics due to the development of urban linguistic landscape.Based on the development of linguistic landscape in TaiKoo Hui,its diverse characteristics are analyzed,and the language signs,usage,and codes are summarized.It is found that there is poor transmission effect of multilingual landscape information and improper use of linguistic landscape in TaiKoo Hui.This paper concludes that the linguistic landscape of Taikoo Hui can be optimized from two aspects to enhance its attractiveness and competitiveness,including improving the informational function of foreign language signs and regulating the use of linguistic landscape.
基金Supported by National Natural Science Foundation of China(40765003)~~
文摘[Objective]This study was to reveal the photo-physiological properties and suitable climate conditions for potato growth,so as to improve potato quality and yield by making use of the climate resources in Ningxia Hui Autonomous Region,to intensively develop the special agriculture there to enhance the economic benefit of local people.[Method]Using CIRASⅠ-Portable Photosynthesis System,we measured the daily change of photo-physiological indices of potato and further analyzed their relationship with daily weather change,and investigated the impacts of climate factors including atmospheric temperature,humidity,CO2 concentration and light intensity on various physiological indices of potato at key growth stages（flowering stage and stem-swelling stage）.[Results]The results showed that（1） humidity in experimental field assumed a ＂ U＂ type cosine variation curve,while photosynthetically active radiation and atmospheric temperature presented a reverse variation trend;（2） atmospheric CO2 concentration was positively correlated with intercellular CO2 concentration of potato cells,both assumed double ＂ W＂ type curve for daily change;（3） during growth period of potato,in the sunny days with appropriate relative humidity,physiological indices including photosynthetic rate,transpiration rate and stomatal conductance presented similar change law with environmental factor photosynthetically active radiation,all appearing an ＂ M＂ type curve with double peaks and a typical midday depression;（4） midday depression caused by to higher light intensity always appeared simultaneously with the maximum and minimum of air temperature.[Conclusion]Our results provided scientific basis for the large scale production of potato in Ningxia Hui Autonomous Region.
