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144篇 您的检索式:作者名="asante"
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1离子色谱-积分脉冲安培法测定燕窝中N-乙酰神经氨酸的含量显示文摘目的建立一种离子色谱-积分脉冲安培法测定燕窝、速食燕窝及银耳、海藻酸钠、鱼胶等常见伪品燕窝中N-乙酰神经氨酸的含量。方法采用DionexICS-5000离子色谱仪、DionexASRSRR5004-mm抑制器、电导检测器测定,色谱柱为CarbonPacPAI柱,柱温为30℃.流动相为100mmol/LNaOH+50mmol/LNaAc,流速为1.0mL/min,进样量为10μL,分别测定燕窝、速食燕窝及伪品中N-乙酰神经氨酸的含量。结果N-乙酰神经氨酸在0.25~5.00μg/mL范围内线性良好,r=0.9999;在燕窝中的平均回收率为99.7%,RSD为0.82%(n=6)。结论本方法灵敏度高、重复性好,可准确测定燕窝中^L乙酰神经氨酸的含量,为燕窝的质量控制提供了一种检测方法。李耿 ASANTE Joseph Obiri 戴洁 吴依娜 赖小平 2014广东药学院学报2014,30,1:8
2美洲板栗愈伤组织诱导和植株再生的研究(英文)显示文摘在培养基中添加不同植物生长调节剂(生长素和细胞机动素),对美洲板粟愈伤组织的诱导以及植株再生进行了研究。将试管繁殖的小植株切为长0.5cm的小段作为外植体材料,以木本植物培养基加上3%的蔗糖和0.7%的琼脂作为基本培养基,再加上不同浓度的生长素或细胞机动素作为试验处理。生长素包括IBA,NAA,2,4-D和2,4,5-T;细胞机动素包括kinetin,CPPU,thidiazuron(TDZ)和zeatin。结果表明:外植体的植株再生和愈伤组织诱导百分率以及再生植株的形态发生以及愈伤组织的诱导量在不同的植物生长调节剂处理间和同一植物生长调节剂不同浓度的处理间都存在着显著的差异。促使外植体植株再生百分率最高的细胞机动素为TDZ,其次为CPPU,kinitin和zeatin;促使外植体愈伤组织诱导百分率最好的生长素为2,4,5-T,其次为2,4-D,IBA和NAA.杨国臣 鲁重格 Theophilus M. Asante Paul E. Read 2008吉林农业大学学报2008,30,4:5
3Iatrogenic nerve injury with the Russell-Taylor humeral nail显示文摘Blyth M J Macleod CM Asante DK Kinninmonth AW 2003Injury2003,34,:1
4Larvicidal activity of extracts and triterpenoids from Lantana camara显示文摘FATOPE M O SALIHU L ASANTE S K 2002Pharmaceutical Biology2002,40,56:1
5Climate change and variability in Ghana: stocktaking 显示文摘Asante F A Amuakwa-Mensah F 2015Climate2015,3,:1
6Mammalian target of rapamyein signaling in the spinal cord is required for neuronal plasticity and behavioral hypersensitivity associated with neuropathy intherat 显示文摘Asante CO Wallace VC Dickenson AH 2010JPain2010,11,12:1
7Gastric mucosal hydrophobicity in duodenal ulceration: Role of H elicobacter pylori infection density and mucus gel 显示文摘Asante M Ahmed H Patel P 1997Gastroenterol1997,113,2:1
8A combined contact elasticity and finite ele- ment- based model for contact load and pressure distribu- tion calculation in a frictional workpiece-fixture system显示文摘ASANTE J N 2008The International Journal of Advanced Manufactur- ing Technology2008,39,56:1
9RAPD-based genetic diversity study of fifty cassava( Manihot esculenta Crantz) genotypes显示文摘I K ASANTE S K OFFEI 2003Euphvtica2003,131,1:1
10The cell and molecular basis of mechanical,cold,and inflammatory pain显示文摘Abrahamsen B Zhao J Asante CO 0,,5889:1
11Human exposure to PCBs, PBDEs and HBCDs in Ghana: Temporal variation, sources of exposure and estimation of daily intakes by infants显示文摘Kwadwo Ansong Asante Sam Adu-Kumi Kenta Nakahiro Shin Takahashi Tomohiko Isobe Agus Sudaryanto Gnanasekaran Devanathan Edith Clarke Osmund Duodu Ansa-Asare Stephen Dapaah-Siakwan Shinsuke Tanabe 2011Environment International2011,,5:1
12Detection and assessment of nitrogen effect on cold tolerance for tea by hyperspectral reflectance with PLSR, PCR, and LM models显示文摘Knowledge of nutrients effect on freezing tolerance is vital for protecting tea plants against cold injury(CI).Freezing injury treatments on tea leaves with different low temperature and nitrogen(N)concentration was evaluated by hyperspectral imaging based on the reflectance as potential analytical tool.Subsequently,quantitative evaluation of the CI was improved by comparing analyzed results using partial least squares regression(PLSR),principle component regression(PCR)and linear model(LM)models.Reflectance of the CI was obtained by hyperspectral imaging system in the band between 871 and 1766 nm.The results showed that average reflectance increases with the rise of N concentration.A substantial portion of the leaf from the plant with 100%N dosage had the darkest image and resulted in the highest reflectance because the N weakened the negative effect of freezing stress.Out of the five spectral domains tested,the best predictive accuracy for the CI of the tea leaf was achieved by PCR(R^(2)=0.9971,RMSE=0.0609)in 1410–1766 nm wavelength,followed by LM(R^(2)=0.9999,RMSE=0.0805)in 871–1000 nm.The whole interval had the worse prediction accuracy which could be caused by large variations in the data for a specific treatment and high absorption peak occurring around 1450 nm in the reflectance curve.The averages,R^(2) and RMSE for all the three statistical models showed that the worse prediction accuracy occurred in 1410–1766 nm,followed by the whole interval 871–1766 nm.The prediction accuracy was low which could be due to the strong water absorption peaks that appeared in both range of wavelengths.The models without absorption bands had improved correlation coefficient and reduced RMSE values between the measured and the predicted CI(R^(2)=0.9676;RMSE=0.3067)compared to the model developed with the reflectance values in the entire waveband(R^(2)=0.9504;RMSE=0.6629).The reflectance values where absorption bands occurred had detrimental effect on the model performance,which resulted in the lower correlation values and larger errors.This study has demonstrated that the wavelength at which absorption bands occur can influence model performance significantly which is a step towards real-time implementation of the technique.Eric Amoah Asante Zhe Du Yongzong Lu Yongguang Hu 2021Information Processing in Agriculture2021,8,1:1
13The cell and molec- ular basis of mechanical, cold, and inflammatory pain显示文摘Abrahamsen B Zhao J Asante CO 2008Sci- ence2008,321,5889:1
14Climate change and farmers' adaptive capacity to strategic innovations: the case of northern Ghana显示文摘ASANTE F A BOAKYE A A EGYIR I S 2012International Journal of Development and Sustainability2012,1,3:1
15Dehydrins expression related to timing of bud burst in Norway spruce显示文摘Igor A. Yakovlev Daniel K. A. Asante Carl Gunnar Fossdal Jouni Partanen Olavi Junttila ?ystein Johnsen 2008Planta2008,,3:1
16Relation of serum cy- tokine concentrations to cardiovascular risk factors and coro - nary heart disease显示文摘Mendall MA Patel P Asante M 1997Heart1997,78,3:1
17A small displacement torsor model for tolerance analysis in a workpiece-fixture assembly显示文摘ASANTE J N 2009Journal of Engineering Manufacture2009,223,8:1
18Endometriosis : The Role of Neuroan- giogenesis 显示文摘Asante A Taylor RN 2011Annual Review Physiol2011,73,2:1
19Relation of serum cytokine concentrations to cardiovascular risk factors and coronary heart disease显示文摘Mendall MA Patel P Asante M 1997Heart1997,78,3:1
20Post-natal knockout of prion protein alters hippocampal CA1 properties, but does not result in neurodegeneration 显示文摘Mallucci GR Ratte S Asante EA 2002EMBO J2002,21,3:1
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