The Journal of Ocean University of China（Oceanic and Coastal Sea Research）is a comprehensive academic quarterly sponsored by the Ocean University of China,published one volume per year.This journal is devoted to the...The Journal of Ocean University of China（Oceanic and Coastal Sea Research）is a comprehensive academic quarterly sponsored by the Ocean University of China,published one volume per year.This journal is devoted to the publication of the theoretical and applied research results on oceanography and marine fisheries.The fields covered include the physical,chemical,biological,geological,environmental,engineering and technological aspects of these sciences.The types of papers include research papers,notes,technical reports,science and technology letters,reviews and overviews,etc.展开更多
Background： The mature unripe fruit of aqueous Carica papaya （ACP） is used in Nigerian traditional medicine for the treatment of jaundice. Work done on aqueous extract of the unripe C. papaya in an acute oral toxic...Background： The mature unripe fruit of aqueous Carica papaya （ACP） is used in Nigerian traditional medicine for the treatment of jaundice. Work done on aqueous extract of the unripe C. papaya in an acute oral toxicity study in rats showed the LD50 to be 2,520 mg/kg in rats. Current study evaluated the bilirubin-lowering potential of ACP extract in phenylhydrazine （40 mg/kg） induced jaundice in adult rats. Method： Jaundice was assessed by measuring the levels of TB （total bilirubin） and DB （direct bilirubin） in phenylhydrazine-treated animals with or without drug treatment, with CUR （curative）, PRO （prophylactic study）, and in animals with RLC （reduced liver capacity）. Results： Result demonstrated that TB level of 24.0 μmols/L, 22.0 μmols/L and 45.0 μmols/L in the jaundiced group of the CUR, PRO and RLC respectively was significantly lowered （p 〈 0.05） to 10.0, 13.0, and 17.0 respectively by 400 mg/kg of the extract. Total bilirubin level of 24.0 btmols/L, 22.0 lamols/L and 45.0 μmols/L in the jaundiced group of the CUR, PRO and RLC respectively was significantly lowered （p 〈 0.05） to 7.0, 10.0, and 17.0 respectively by 800 mg/kg extract. Conclusion： The study concluded that ACP fruit extract has ability to lower elevated bilirubin level and confer hepatoprotective effect as seen from the liver function test indices thus justifying its ethnomedicinal use.展开更多
The creative talents are of constructive significance to the development of the country. Starting from the early exploration and the scientific definition of the creativity of the talents, this article summarizes the ...The creative talents are of constructive significance to the development of the country. Starting from the early exploration and the scientific definition of the creativity of the talents, this article summarizes the research achievements of the creativity of talents in China from three aspects of the determination of the nature and the research of the structural model, the research of the relationship between creativity and other factors, and the development and research of the cross cultural creativity. And from the perspective of the theory and the practice, the author puts forward the ways to cultivate the creativity of the talents from the five dimensions of optimizing the development of the brain functions, improving the abilities of the thinking, judgment and control, debugging the emotional stability and the creative personality, striving to improve the teachers＇ creativity, and drawing lessons from the practical experience of training innovative talents in western countries.展开更多
Field establishment of cashew has been seriously hampered by long delay in the nursery. This has led to transplanting of overgrown seedlings resulting in high transplant mortality, especially during the first dry seas...Field establishment of cashew has been seriously hampered by long delay in the nursery. This has led to transplanting of overgrown seedlings resulting in high transplant mortality, especially during the first dry season on the field. The experiment was set up to study field establishment of cashew transplants as affected by the nursery periods. Four nursery periods were tried. These were cashew transplanted at 3, 4, 8 and 12 weeks after sowing （WAS）. The experiment was laid out in randomized complete block with three replicates. Records were taken on morphological parameters and survival percentage of the transplants till fruiting. Cashew seedlings transplanted at 12 WAS had better morphological plant parameters compared to other transplants. At 3 months after transplanting （MAT）, cashew transplants of 12 WAS were 172.6%, 93.7% and 38.5% taller than transplants of 3, 4 and 8 WAS, respectively and the differences were significant （P 〈 0.05）. Similarly, seedlings transplanted at 12 WAS had 245.4%, ! 51.9% and 99.4% more leaves than those of 3, 4 and 8 WAS at 3 MAT, respectively. However, the survival percent of cashew seedlings transplanted at 12 WAS were 66.7% followed by that of 3 WAS with 75.0% within 12 MAT. No transplant mortality was incurred in seedlings transplanted at 4 and 8 WAS up to 12 MAT. For optimum growth and high survival rate, transplanting cashew seedlings between 4 and 8 WAS will be encouraged so as to have high plant stands, thereby, reducing supply in the following planting season.展开更多
Tomato is one of the most widely produced and consumed vegetable crops in Ethiopia. It is not produced during the rainy season, mainly due to high disease pressure and low soil temperature. Therefore, an experiment wa...Tomato is one of the most widely produced and consumed vegetable crops in Ethiopia. It is not produced during the rainy season, mainly due to high disease pressure and low soil temperature. Therefore, an experiment was conducted to study the effect of different types of mulch （black and white plastic mulch as well as grass mulch） on early yield of tomato varieties （Miya ＆ Cochoro） under polyhouse growing condition at Bahir Dar during the rainy season in 2012. Treatments were arranged in 4 - 2 factorial combinations in randomized complete block design with three replications. One month old seedlings were transplanted on 8.4 m2 gross plots size （3 m x 2.8 m） at a spacing of 70 cm x 40 cm between rows and plants, respectively. Data recorded from plants found in the two middle rows of each plot. Di-ammonium phosphate （DAP） and Urea fertilizers were applied at the rate of 200 kg and 100 kg/ha, respectively. Sixteen plants were considered for data collection in each plot. White plastic mulch resulted in significantly （P 〈 0.05） earlier flowering, fruit setting and fruit maturity compared to other mulching materials. Varieties were also significantly different in days required to flowering, fruit setting and fruit maturity. Miya took significantly short period to flower, fruit set and fruit maturity compared to Cochoro variety. The effect of different mulch types on early fruit yield was found statistically significant. The highest early marketable fruit yield of 10.99 ton/ha and 10.54 ton/ha were recorded when Miya variety was grown with white and black plastic mulch, respectively. Therefore, use of white and black plastic mulches recommended for early tomato fruit yield.展开更多
文摘The Journal of Ocean University of China（Oceanic and Coastal Sea Research）is a comprehensive academic quarterly sponsored by the Ocean University of China,published one volume per year.This journal is devoted to the publication of the theoretical and applied research results on oceanography and marine fisheries.The fields covered include the physical,chemical,biological,geological,environmental,engineering and technological aspects of these sciences.The types of papers include research papers,notes,technical reports,science and technology letters,reviews and overviews,etc.
文摘Background： The mature unripe fruit of aqueous Carica papaya （ACP） is used in Nigerian traditional medicine for the treatment of jaundice. Work done on aqueous extract of the unripe C. papaya in an acute oral toxicity study in rats showed the LD50 to be 2,520 mg/kg in rats. Current study evaluated the bilirubin-lowering potential of ACP extract in phenylhydrazine （40 mg/kg） induced jaundice in adult rats. Method： Jaundice was assessed by measuring the levels of TB （total bilirubin） and DB （direct bilirubin） in phenylhydrazine-treated animals with or without drug treatment, with CUR （curative）, PRO （prophylactic study）, and in animals with RLC （reduced liver capacity）. Results： Result demonstrated that TB level of 24.0 μmols/L, 22.0 μmols/L and 45.0 μmols/L in the jaundiced group of the CUR, PRO and RLC respectively was significantly lowered （p 〈 0.05） to 10.0, 13.0, and 17.0 respectively by 400 mg/kg of the extract. Total bilirubin level of 24.0 btmols/L, 22.0 lamols/L and 45.0 μmols/L in the jaundiced group of the CUR, PRO and RLC respectively was significantly lowered （p 〈 0.05） to 7.0, 10.0, and 17.0 respectively by 800 mg/kg extract. Conclusion： The study concluded that ACP fruit extract has ability to lower elevated bilirubin level and confer hepatoprotective effect as seen from the liver function test indices thus justifying its ethnomedicinal use.
文摘The creative talents are of constructive significance to the development of the country. Starting from the early exploration and the scientific definition of the creativity of the talents, this article summarizes the research achievements of the creativity of talents in China from three aspects of the determination of the nature and the research of the structural model, the research of the relationship between creativity and other factors, and the development and research of the cross cultural creativity. And from the perspective of the theory and the practice, the author puts forward the ways to cultivate the creativity of the talents from the five dimensions of optimizing the development of the brain functions, improving the abilities of the thinking, judgment and control, debugging the emotional stability and the creative personality, striving to improve the teachers＇ creativity, and drawing lessons from the practical experience of training innovative talents in western countries.
文摘Field establishment of cashew has been seriously hampered by long delay in the nursery. This has led to transplanting of overgrown seedlings resulting in high transplant mortality, especially during the first dry season on the field. The experiment was set up to study field establishment of cashew transplants as affected by the nursery periods. Four nursery periods were tried. These were cashew transplanted at 3, 4, 8 and 12 weeks after sowing （WAS）. The experiment was laid out in randomized complete block with three replicates. Records were taken on morphological parameters and survival percentage of the transplants till fruiting. Cashew seedlings transplanted at 12 WAS had better morphological plant parameters compared to other transplants. At 3 months after transplanting （MAT）, cashew transplants of 12 WAS were 172.6%, 93.7% and 38.5% taller than transplants of 3, 4 and 8 WAS, respectively and the differences were significant （P 〈 0.05）. Similarly, seedlings transplanted at 12 WAS had 245.4%, ! 51.9% and 99.4% more leaves than those of 3, 4 and 8 WAS at 3 MAT, respectively. However, the survival percent of cashew seedlings transplanted at 12 WAS were 66.7% followed by that of 3 WAS with 75.0% within 12 MAT. No transplant mortality was incurred in seedlings transplanted at 4 and 8 WAS up to 12 MAT. For optimum growth and high survival rate, transplanting cashew seedlings between 4 and 8 WAS will be encouraged so as to have high plant stands, thereby, reducing supply in the following planting season.
文摘Tomato is one of the most widely produced and consumed vegetable crops in Ethiopia. It is not produced during the rainy season, mainly due to high disease pressure and low soil temperature. Therefore, an experiment was conducted to study the effect of different types of mulch （black and white plastic mulch as well as grass mulch） on early yield of tomato varieties （Miya ＆ Cochoro） under polyhouse growing condition at Bahir Dar during the rainy season in 2012. Treatments were arranged in 4 - 2 factorial combinations in randomized complete block design with three replications. One month old seedlings were transplanted on 8.4 m2 gross plots size （3 m x 2.8 m） at a spacing of 70 cm x 40 cm between rows and plants, respectively. Data recorded from plants found in the two middle rows of each plot. Di-ammonium phosphate （DAP） and Urea fertilizers were applied at the rate of 200 kg and 100 kg/ha, respectively. Sixteen plants were considered for data collection in each plot. White plastic mulch resulted in significantly （P 〈 0.05） earlier flowering, fruit setting and fruit maturity compared to other mulching materials. Varieties were also significantly different in days required to flowering, fruit setting and fruit maturity. Miya took significantly short period to flower, fruit set and fruit maturity compared to Cochoro variety. The effect of different mulch types on early fruit yield was found statistically significant. The highest early marketable fruit yield of 10.99 ton/ha and 10.54 ton/ha were recorded when Miya variety was grown with white and black plastic mulch, respectively. Therefore, use of white and black plastic mulches recommended for early tomato fruit yield.
