Green algae dominance quickly switches to cyanobacteria dominance after nutrient enrichment in greenhouse with high temperature

Xiaodong Wang,Xingguo Liu1,Boqiang Qin,Zhaojun Gu,Hao Xu,Hao Zhu,Guofeng Cheng,Huang Liu 한국생태학회 2015 Journal of Ecology and Environment Vol.38 No.3

In order to understand the mechanisms of conversion between different algal dominance, an experiment was performed in a greenhouse from 22 June to 10 July 2011. The experiment included a treatment group subjected to three instances of nutrient enrichment and a control with no nutrient enrichment. The initial water was dominated by Ankistrodesmus of Chlorophyta. The average water temperature at 08:30 h and 14:00 h during the experiment was 31.6°C and 34.6°C, respec¬tively. The results showed that the total nitrogen (TN), total phosphorus (TP), dissolved total nitrogen (DTN), dissolved total phosphorus (DTP), and soluble reactive phosphorus (SRP) concentrations in the treatment were significantly higher than in the control (P < 0.05). However, the TN/TP and DTN/DTP in the control was higher than in the treatment (P < 0.05). The dominant algae in the control did not change during the experiment, while the dominant algae in the treat¬ment switched to Planktothrix of Cyanophyta on day 9. The chlorophyll a (Chl-a), wet weight of all algae, wet weight of Cyanophyta, and percentage of Cyanophyta in the control were all significantly lower than in the treatment (P < 0.05). Amounts of zooplankton, especially rotifers, were present at the end of the experimental period. The density of rotifers between the control and treatment was not significantly different (P > 0.05), while the copepod density in the treatment was higher than in the control (P < 0.05). We conclude that green algae dominance quickly switches to cyanobacteria dominance after nutrient enrichment in a greenhouse with elevated temperature

Research on copyright of SNS re-edited images -A discussion on the current situation of Chinese and German SNS re-edited images

Liu-Cheng Cheng,Won-Ho Choi 한국콘텐츠학회 2022 한국콘텐츠학회 ICCC 논문집 Vol.2022 No.12

Research on the Copyright Issues of SNS Image: The Problems Involved in Remake Between Chinese and German

Liu-Cheng Cheng,최원호 사단법인 한국융합기술연구학회 2023 아시아태평양융합연구교류논문지 Vol.9 No.4

The increasing impact of the network environment on image copyright makes research on the issue of SNS reproducing video copyright crucial for the copyright protection of China's network industry. This paper conducts a comparative analysis of copyright protection laws and regulations for SNS re-edited images in China and Germany across different historical periods. It also examines the copyright infringement liability system for user-generated content on video sharing websites. The study aims to develop a solution for copyright protection in the online video industry that meets China's national conditions, considering the responsibility of infringing users, the identification system of infringement liability of SNS re-edited video sharing websites, the legal compensation system, and the subjects of rights protection, combined with empirical analysis of relevant cases. Both Germany and China have defined corresponding legal responsibilities for users in cases of infringement. For example, Article 46 of the Copyright Law of the People's Republic of China specifies that if a user spreads copyrighted works on the internet without permission, the copyright owner may require the network service provider to take necessary measures to prevent the spread of the works. Similarly, German tort law requires users to undertake corresponding responsibility for their actions in cases of network torts. Therefore, both countries have similar rules regarding user responsibility in infringement cases. The results of the comparative analysis of copyright protection laws and regulations in China and Germany, with a focus on SNS reproducing video copyright, have significant implications for the copyright protection of China's network industry. The study ultimately aims to provide a suitable solution for copyright protection in the online video industry that aligns with China's national conditions.

Stability and electronic properties of CuAlO2 (112 0) surfaces

Cheng-Lu Jiang,Qi-Jun Liu,Fu-Sheng Liu,Zheng-Tang Liu 한국물리학회 2017 Current Applied Physics Vol.17 No.2

We have studied the stability and electronic properties of CuAlO2 ð112 『 0Þ surfaces using the firstprinciples calculations. The structural parameters, band structures, surface energies, work functions, densities of states and charge densities of CuAlO2 ð112 『 0Þ surfaces have been investigated. The calculated results show that five layers are needed to maintain convergence. After the formation of surfaces, the bandgaps of stable surfaces decrease, the covalency between Cu and O atoms in surfaces increases, and the positive charge layer in the fisrt layer appears.

Biosynthesis of 3-Hydroxy-5-Methyl-O-Methyltyrosine in the Saframycin/Safracin Biosynthetic Pathway

Cheng Yu Fu,Man Cheng Tang,Chao Peng,Lei Li,Yan Ling He,Wen Liu,Gong Li Tang 한국미생물 · 생명공학회 2009 Journal of microbiology and biotechnology Vol.19 No.5

Slide Session : OS-CAD-06 ; Cardiology : Erythrocytosis Increased One-Year Mortality in Patients with St-Segment Elevation Myocardial Infarction Un-dergoing Primary Percutaneous Coronary Intervention

( Cheng Wei Liu ),( Yi Ching Lin ),( Chung Ming Tu ),( Pen Chih Liao ),( Kuan Change Chen ),( Yen Wen Wu ) 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1

Background: Anemia is associated with poor prognosis in patients with ST-segment elevation myocardial infarction(STEMI). However, it is unclear that erythrocytosis has protective effect in these populations. Hence, we conducted a retrospective cohort study to examine the relationship between erythrocytosis and mortality in patients with STEMI undergoing primary percutaneous coronary intervention (PCI ). Materials and Methods: We screened 1,156 consecutive patients with STEMI undergoing primary PCI in a single center during Feb 2007 and January 2012. There were 201 missing data for door-to-balloon time and 4 missing data for hemoglobin. Of 951 analyzable patients, they were divided into anemia (Hemoglobin<13.0mg/dl in men or <12.0mg/dl in women), normal hemoglobin, and erythrocytosis (hemoglobin =16.0mg/dl in men or =15.0mg/dl in women) groups. The study end point was one-year mortality. Results: There were 148, 535, and 268 patients in anemia, normal hemoglobin, and erythrocytosis groups, respectively. Patients in the anemia group were older and had lower body mass index than other two groups. There was more female, smokers, hypertension, and diabetes in the anemia group. One-year mortality rates were 16.2%, 6.5%, 2.6% (P<0.001) respectively. In univariate proportional hazards regression analysis, age, hemoglobin, total cholesterol, statin use, glycoprotein llb/llla inhibitor use, and TIMI risk score were associated with 1-year mortality in three groups. After adjustment for potential confounders, hemoglobin levels remained an independent predictor of one-year mortality in both anemia (hazard ratio 0.697, 95% CI 0.528-0.960) and erythrocytosis group (hazard ratio 3.129, 95% CI 1.1.474-6.642). Conclusions: Patients with STEMI and anemia had the worst outcomes than normal hemoglobin and erythrocytosis groups. Expectedly, hemoglobin had the protective effect on prognosis in anemia group. However, a hemoglobin level was an independent risk factor of one-year mortality in those with erythrocytosis.

Blooming

Liu Yi Cheng 한국콘텐츠학회 2023 ICCC International Digital Design Invitation Exhib Vol.2023 No.5

Effects of Three Feeding Systems on Production Performance, Rumen Fermentation and Rumen Digesta Particle Structure of Beef Cattle

Liu, Y.F.,Sun, F.F.,Wan, F.C.,Zhao, H.B.,Liu, X.M.,You, W.,Cheng, H.J.,Liu, G.F.,Tan, X.W.,Song, E.L. Asian Australasian Association of Animal Productio 2016 Animal Bioscience Vol.29 No.5

The effects of three different feeding systems on beef cattle production performance, rumen fermentation, and rumen digesta particle structure were investigated by using 18 Limousin (steers) with a similar body weight ($575{\pm}10kg$) in a 80-d experiment. The animals were equally and randomly divided into three treatment groups, namely, total mixed ration group (cattle fed TMR), SI1 group (cattle fed concentrate firstly then roughage), and SI2 group (cattle fed roughage firstly then concentrate). The results showed that the average daily gain was significantly higher in cattle receiving TMR than in those receiving SI1 and SI2 (p<0.05). Consumption per kg weight gain of concentrate, silage, and combined net energy (NEmf) were significantly decreased when cattle received TMR, unlike when they received SI1 and SI2 (p<0.05), indicating that the feed efficiency of TMR was the highest. Blood urea nitrogen (BUN) was significantly decreased when cattle received TMR compared with that in cattle receiving SI1 (p<0.05), whereas there was no difference compared with that in cattle receiving SI2. Ammonia nitrogen concentration was significantly lower in cattle receiving TMR than in those receiving SI1 and SI2 (p<0.05). The rumen area of cattle that received TMR was significantly larger than that of cattle receiving SI1 (p<0.05), but there was no difference compared with that of cattle receiving SI2. Although there was no significant difference among the three feeding systems in rumen digesta particle distribution, the TMR group trended to have fewer large- and medium-sized particles and more small-sized particles than those in the SI1 and SI2 groups. In conclusion, cattle with dietary TMR showed increased weight gain and ruminal development and decreased BUN. This indicated that TMR feeding was more conducive toward improving the production performance and rumen fermentation of beef cattle.

Poster Session : PS 0088 ; Cardiology : Paradoxical Stroke after Complex Coronary Intervention in a Patient with End-Stage Renal Disease

( Cheng Wei Liu ),( Jen Kuang Lee ),( Yen Jun Lai ) 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1

The 75-year-old man underwent percutaneous coronary intervention(PCI) for atherosclerosis coronary artery disease. He had end-staged renal disease with maintenance hemodialysis. Right hemiparesis developed ten hours after the procedure. A computed tomography (CT) of brain demonstrated a hyperdense sucal or cortial lesion in the left frontal lobe (Figure 1). This image fi nding suggested subarachnoid hemorrhage. Dual antiplatelet agents (DAPT) were disrupted transiently. A magnetic resonance imaging (MRI) of brain showed high signal in the left precentral gyrus in diffusion weighted imaging (Figure 2) with corresponding hypointensity in apparent diffusion coeffi ciency imaging (Figure 3), suggestive of an acute infarct. After appropriate treatment for acute ischemic stroke and resuming DAPT immediately, he was discharged uneventfully a week later. Disruption of DAPT signifi cantly increased major cardiovascular events after PCI, especially within 7 days (1). In patients with neurological defi cits after coronary intervention is performed, urgent MRI is necessary to differentiate hemorrhagic strokes from ischemic insults with contrast extravasations from the damaged brainblood barrier. Minimizing window period of DAPT is emphasized in patients with suspicious paradoxical stroke. Reference 1. Mehran R, Baber U, Steg PG, et al. Cessation of dual antiplatelet treatment and cardiac events after percutaneous coronary intervention (PARIS): 2 year results from a prospective observational study. Lancet 382:1714-22, 2013.

Substitution of Wheat for Corn in Beef Cattle Diets: Digestibility, Digestive Enzyme Activities, Serum Metabolite Contents and Ruminal Fermentation

Liu, Y.F.,Zhao, H.B.,Liu, X.M.,You, W.,Cheng, H.J.,Wan, F.C.,Liu, G.F.,Tan, X.W.,Song, E.L.,Zhang, X.L. Asian Australasian Association of Animal Productio 2016 Animal Bioscience Vol.29 No.10

The objective of this study was to evaluate the effect of diets containing different amounts of wheat, as a partial or whole substitute for corn, on digestibility, digestive enzyme activities, serum metabolite contents and ruminal fermentation in beef cattle. Four Limousin${\times}$LuXi crossbred cattle with a body weight ($400{\pm}10kg$), fitted with permanent ruminal, proximal duodenal and terminal ileal cannulas, were used in a $4{\times}4$ Latin square design with four treatments: Control (100% corn), 33% wheat (33% substitution for corn), 67% wheat (67% substitution for corn), and 100% wheat (100% substitution for corn) on a dry matter basis. The results showed that replacing corn with increasing amounts of wheat increased the apparent digestibility values of dry matter, organic matter, and crude protein (p<0.05). While the apparent digestibility of acid detergent fiber and neutral detergent fiber were lower with increasing amounts of wheat. Digestive enzyme activities of lipase, protease and amylase in the duodenum were higher with increasing wheat amounts (p<0.05), and showed similar results to those for the enzymes in the ileum except for amylase. Increased substitution of wheat for corn increased the serum alanine aminotransferase concentration (p<0.05). Ruminal pH was not different between those given only corn and those given 33% wheat. Increasing the substitution of wheat for corn increased the molar proportion of acetate and tended to increase the acetate-to-propionate ratio. Cattle fed 100% wheat tended to have the lowest ruminal $NH_3-N$ concentration compared with control (p<0.05), whereas no differences were observed among the cattle fed 33% and 67% wheat. These findings indicate that wheat can be effectively used to replace corn in moderate amounts to meet the energy and fiber requirements of beef cattle.