目的评价Microreader^(TM)23HS Plex ID System试剂盒中包含的23个常染色体STR基因座在中国北方汉族人群中等位基因频率分布,获得群体遗传数据,探究其在法医学中的应用价值。方法使用Microreader^(TM)23HS Plex ID System试剂盒对中国...目的评价Microreader^(TM)23HS Plex ID System试剂盒中包含的23个常染色体STR基因座在中国北方汉族人群中等位基因频率分布,获得群体遗传数据,探究其在法医学中的应用价值。方法使用Microreader^(TM)23HS Plex ID System试剂盒对中国北方汉族人群548例无关样本DNA进行检测,收集分型数据,计算各基因座的等位基因频率、样本的杂合度(heterozygosity,H)、这些常染色体STR基因座的多态信息含量(polymorphism information content,PIC)、个体识别力(power of discrimination,DP)和非父排除率(probability of paternity exclusion,PE)并使用统计软件对各基因座是否符合Hardy-Weinberg平衡进行检验;同时对Microreader^(TM)23HS Plex ID System的累积个体识别能力(CDP)和累积非父排除率(CPE)进行计算。结果在548例无关样本中23个STR基因座共计检出260个等位基因,等位基因频率为0.0009~0.5902,H为0.611~0.885,PIC为0.577~0.864,DP为0.815~0.973(平均DP为0.922),PE为0.089~0.406,CDP=1-3.663×10^(-27),CPE=1-2.668×10^(-16),所有基因座等位基因的分布符合Hardy-Weinberg平衡。结论Microreader^(TM)23HS Plex ID System的23个基因座在中国北方汉族人群中具有良好的多态性,在法医学个人识别、群体遗传学研究、亲子鉴定,特别是复杂亲缘关系鉴定中应用价值较高。展开更多
With the advancement of economic globalization,the flow of commodities from one country to another has become closer and closer.Especially in recent years,the logistics industry has been developing rapidly,overseas pu...With the advancement of economic globalization,the flow of commodities from one country to another has become closer and closer.Especially in recent years,the logistics industry has been developing rapidly,overseas purchasing agents and cross-border online shopping have been enormously prevailing,and accordingly more and more British and American cosmetics expect to occupy a place in the huge market of China.Therefore,it is particularly important to explore the Chinese translation strategies for British and American cosmetic brands.Based on the theory of reception aesthetics,this thesis takes the corpus Estee Lauder,La mer,and other famous cosmetics brands.The thesis proposes several methods for translating cosmetic brands:transliteration for proper names like person or geography names;free translation to recreate brand aesthetics;creative translation for new brands;and adapted translation for divergence in language habits.Therefore,this thesis is of theoretical and practical significance as far as the field of cosmetics is concerned.展开更多
Weak signal reception is a very important and challenging problem for communication systems especially in the presence of non-Gaussian noise,and in which case the performance of optimal linear correlated receiver degr...Weak signal reception is a very important and challenging problem for communication systems especially in the presence of non-Gaussian noise,and in which case the performance of optimal linear correlated receiver degrades dramatically.Aiming at this,a novel uncorrelated reception scheme based on adaptive bistable stochastic resonance(ABSR)for a weak signal in additive Laplacian noise is investigated.By analyzing the key issue that the quantitative cooperative resonance matching relationship between the characteristics of the noisy signal and the nonlinear bistable system,an analytical expression of the bistable system parameters is derived.On this basis,by means of bistable system parameters self-adaptive adjustment,the counterintuitive stochastic resonance(SR)phenomenon can be easily generated at which the random noise is changed into a benefit to assist signal transmission.Finally,it is demonstrated that approximately 8dB bit error ratio(BER)performance improvement for the ABSR-based uncorrelated receiver when compared with the traditional uncorrelated receiver at low signal to noise ratio(SNR)conditions varying from-30dB to-5dB.展开更多
Introduction The main objective of any healthcare establishment must be to ensure the quality of patient care and customer satisfaction. It is necessary to regularly assess patient satisfaction. The aim of this study ...Introduction The main objective of any healthcare establishment must be to ensure the quality of patient care and customer satisfaction. It is necessary to regularly assess patient satisfaction. The aim of this study was to assess the level of satisfaction of customers aged over 18 years attending the emergency department of the health center. Methodology This was a descriptive and analytical cross-sectional study of patients aged 18 years and over, who attended the Samu Municipal emergency department between 02 and 30 May 2023. The satisfaction index was determined using the adapted 2009 SAPHORA-MCO questionnaire and the Likert satisfaction scale. Results A total of 400 patients were surveyed. The average age was 35 years, with a standard deviation of 14.7. Of those surveyed, 51% were women, 87% were educated, 50% lived in Grand Yoff and 59.5% were unemployed. Satisfaction levels linked to perception of the cost of care (72%), waiting time (64.3%), information given to patients (69.1%) and pain management (74 .5%) are fair. On the other hand, the levels of satisfaction linked to administrative procedures (82.5%), staff attitudes towards patients (84%), staff availability (86.4%), patient privacy (89.2%), general atmosphere (87.2%), staff competence (87.3%), and the effectiveness of care (89.4%) were satisfactory. The average waiting time was 38 minutes. However, 32% of patients waited less than 30 minutes and 92% less than an hour. The satisfaction index linked to administration and reception was 72.9% and 79.85%, respectively. The satisfaction index linked to the administration and technical quality of care is equal to 85.8% and 83.7%, respectively. The overall satisfaction index is equal to 80.6%;the level of satisfaction of users of the health structure is satisfactory. Conclusion Patient satisfaction is an essential part of quality care. Patient satisfaction must be based on effective communication from the healthcare team and the creation of a patient-caregiver relationship.展开更多
Good translations play a very important role in cultural exchange.The idea of reception aesthetics think the reader as the center in translation process.This paper will study the translation of culture-loaded words fr...Good translations play a very important role in cultural exchange.The idea of reception aesthetics think the reader as the center in translation process.This paper will study the translation of culture-loaded words from the perspective of reception aesthetics.It is divided into five parts.The first part mainly introduces the background and theoretical foundation of this paper,the second part introduces the writer’s works,the third part gives examples to analyze the culture-loaded words appearing in The Golden Cangue,the fourth part gives examples of the translation methods,and the fifth part is the conclusion.It aims to provide a reference for the English translation of culture-loaded words.展开更多
Grounded in reader-centered theories,Reception Aesthetics prioritizes the active engagement and acceptance of target readers.This study examines the translation of children’s literature through the lens of Reception ...Grounded in reader-centered theories,Reception Aesthetics prioritizes the active engagement and acceptance of target readers.This study examines the translation of children’s literature through the lens of Reception Aesthetics,using Li Wenjun’s rendition of The Secret Garden as a case study.The objective is to scrutinize various aspects of the translation-including vocabulary,syntax,rhetorical devices,and cultural nuances-and to discern how the adaptation and application of diverse translation strategies cater to the aesthetic expectations.展开更多
The AGCU X Plus STR system is a newly developed multiplex PCR kit that detects 32 X-chromosomal STR loci simultaneously.These are DXS6807,DXS9895,linkage group 1(DXS10148,DXS10135,DXS8378),DXS9902,DXS6795,DXS6810,DXS1...The AGCU X Plus STR system is a newly developed multiplex PCR kit that detects 32 X-chromosomal STR loci simultaneously.These are DXS6807,DXS9895,linkage group 1(DXS10148,DXS10135,DXS8378),DXS9902,DXS6795,DXS6810,DXS10159,DXS10162,DXS10164,DXS7132,linkage group 2(DXS10079,DXS10074,DXS10075),DXS981,DXS6800,DXS6803,DXS6809,DXS6789,DXS7424,DXS101,DXS7133,GATA172D05,GATA165B12,linkage group 3(DXS10103,HPRTB,DXS10101),GATA31E08 and linkage group 4(DXS8377,DXS10134,DXS7423).A major advantage of this kit is that it takes into account linkage between loci,in addition to detecting more X-STR loci.In order to evaluate the forensic application of 32 X-STR fl uorescence amplifi cation system,PCR settings,sensitivity,species specifi city,stability,DNA mixtures,concordance,stutter,sizing precision,and population genetics investigation were evaluated according to the Scientific Working Group on DNA Analysis Methods(SWGDAM)developmental validation guidelines.The study showed that the genotyping results of each locus were signifi cantly accurate when the DNA template was at least 62.5 pg.Complete profi les were obtained for the 1∶1 and 1∶3 combinations.A total of 209 unrelated individuals from Southern Chinese Han community,consisting of 84 females and 125 males,were selected for population studies,and 285 allele profi les were detected from 32 X-STR loci.The polymorphism information content(PIC)ranged from 0.2721 in DXS6800,to 0.9105 in DXS10135,with an average of 0.6798.DXS10135(PIC=0.9105)was the most polymorphic locus,with discrimination power(DP)of 0.9164 and 0.9871 for the male and female.The cumulative PD_(F),PD_(M),MEC_(trio) and MEC_(duo) valu es were all greater than 0.999999999.There were 78 different DXS10103-HPRTB-DXS10101 haplotypes among the 125 males,and the haplotype diversity was 0.9810.There was no signifi cant difference in the cumulative PD_(F),PD_(M),MEC_(trio) and MEC_(duo) values whether considering linkage or not.In summary,the new X-STR multiplex typing system is effective and reliable,which can be useful in human genetic analysis and kinship testing as a potent complement to autosomal STR typing.展开更多
目的 建立基于常用STR分型试剂盒的肿瘤组织身源鉴定方法。方法 采用ForenSeq^(TM) DNA Signature Prep试剂盒检测55例配对肿瘤组织样本(肿瘤组织和同一个体正常组织成对)以及75例无关个体全血样本27个常染色体STR基因座的分型情况,并模...目的 建立基于常用STR分型试剂盒的肿瘤组织身源鉴定方法。方法 采用ForenSeq^(TM) DNA Signature Prep试剂盒检测55例配对肿瘤组织样本(肿瘤组织和同一个体正常组织成对)以及75例无关个体全血样本27个常染色体STR基因座的分型情况,并模拟55例肿瘤组织的全同胞、亲子对分型数据,统计成对肿瘤(paired carcinoma,PC)、肿瘤-无关个体(tumor-unrelated individual,UI)、肿瘤-全同胞(tumor-simulated full sibling,FS)与肿瘤-亲子(tumor-simulated parent-offspring,PO)的共有等位基因个数(number of total identical alleles,A_n)及状态一致性(identity by state,IBS)评分。以上述统计结果作为参照,建立8个常用STR分型试剂盒的肿瘤组织身源鉴定预测模型,并尝试构建一个专用于肿瘤组织身源鉴定的模型。使用另外23例配对肿瘤组织样本的检测结果对鉴定模型的准确性、灵敏度及特异度进行验证与评估。结果 (1)在任一试剂盒中,全不同基因座数量(A_0)在PC组与PO组之间差异无统计学意义。1个相同基因座数量(A_(1))、2个相同基因座数量(A_(2))和IBS评分在PC组与UI、FS、PO组之间差异均有统计学意义。(2)不同STR基因座的A_n与IBS评分在不同组别存在差异,其中,13个STR基因座(CSF1PO、D12S391、D19S433、D20S482、D2S1338、D3S1358、D4S2408、D7S820、D8S1179、FGA、TH01、TPOX、vWA)的A_(2)在PC组均高于其他STR基因座;2个STR基因座(D6S1043、PentaE)的A_(2)在UI组低于其他STR基因座。(3)成功构建了8个常用STR分型试剂盒的肿瘤组织身源鉴定预测模型以及15个STR基因座的肿瘤组织身源鉴定模型(15-STRs),灵敏度均达100%,特异度为97.56%~99.88%,准确度为97.59%~99.89%。其中,15-STRs模型的灵敏度为100%,特异度为99.88%,准确率为99.89%,高于常用商业化试剂盒。结论 本研究成功建立了8个常用STR分型试剂盒的肿瘤组织身源鉴定方法,拓展了肿瘤组织身源鉴定的应用范围。通过比较不同基因座在肿瘤组织身源鉴定中的差异,筛选出了15个特别适用于肿瘤组织身源鉴定的STR基因座,为未来肿瘤组织溯源的试剂盒构建提供了数据基础。展开更多
在法庭科学领域推进相关有证标准物质的研制和应用,对建设DNA分析的标准化体系具有重要意义。当前不断涌现新的DNA检验方法,并迅速应用于刑事案件调查,现行方法的有效性和准确性需要标准物质开展认证与验证。DNA STR(short tandem repe...在法庭科学领域推进相关有证标准物质的研制和应用,对建设DNA分析的标准化体系具有重要意义。当前不断涌现新的DNA检验方法,并迅速应用于刑事案件调查,现行方法的有效性和准确性需要标准物质开展认证与验证。DNA STR(short tandem repeat)分型检验是当前法庭科学进行个体身份识别和亲缘关系判断的主要依据,有证DNA标准物质是实现不同实验室间信息资源共享,保障STR分型结果准确可比的标尺。概述了STR检验技术及其过程中使用的国内外标准品和标准物质,并对我国构建STR检验的标准物质体系提出了建议和展望。展开更多
目的:调查19个STR基因座在贵州[亻革]家人人群中的遗传多态性分布,为其民族识别提供生物学依据。方法:应用ABI9700型扩增仪和基点认知公司Goldeneye 20A荧光复合扩增系统对106个[亻革]家人无关个体19个STR基因座进行复合扩增,ABI3100型...目的:调查19个STR基因座在贵州[亻革]家人人群中的遗传多态性分布,为其民族识别提供生物学依据。方法:应用ABI9700型扩增仪和基点认知公司Goldeneye 20A荧光复合扩增系统对106个[亻革]家人无关个体19个STR基因座进行复合扩增,ABI3100型遗传分析仪进行毛细管电泳,GeneMapper ID3.2软件进行基因分型,Modified-Powerstates软件对有关群体遗传学数据进行统计分析。结果:19个STR基因座共检出173个等位基因和497种基因型,其分布符合Hardy-Weinberg平衡定律(P>0.05);杂合度(Heterozygotes,H)为0.585~0.906,亲权指数(typical paternity index,PI)为1.20~5.30,个体识别率(Power of Discrimination,DP)为0.747~0.964,非父排除率(power of exclusion,PE)为0.273~0.769,多态信息含量(polymorphism information content,PIC)为0.50~0.90。结论:19个STR基因座除CSF1PO、TPOX、TH01、D13S317、D7S820、D16S539外,其余具有高度多态性,并在法医学个体识别和亲权鉴定中具有较高的应用价值。展开更多
Reception theory stresses reader's activeness.Translation of Chinese Menu in English Version reveals the universal principles of transnational strategies and methods of menu translation.Through analysis of Chinese...Reception theory stresses reader's activeness.Translation of Chinese Menu in English Version reveals the universal principles of transnational strategies and methods of menu translation.Through analysis of Chinese Menu in English Version,the article studies its text and examines the linking mechanism between reception theory and menu translation.A comparative conclusion shows that in menu translation attention is paid to the accuracy of the target text by translators,who are simultaneously aware of the paradox between expectation and acceptance of individual readers.展开更多
文摘目的评价Microreader^(TM)23HS Plex ID System试剂盒中包含的23个常染色体STR基因座在中国北方汉族人群中等位基因频率分布,获得群体遗传数据,探究其在法医学中的应用价值。方法使用Microreader^(TM)23HS Plex ID System试剂盒对中国北方汉族人群548例无关样本DNA进行检测,收集分型数据,计算各基因座的等位基因频率、样本的杂合度(heterozygosity,H)、这些常染色体STR基因座的多态信息含量(polymorphism information content,PIC)、个体识别力(power of discrimination,DP)和非父排除率(probability of paternity exclusion,PE)并使用统计软件对各基因座是否符合Hardy-Weinberg平衡进行检验;同时对Microreader^(TM)23HS Plex ID System的累积个体识别能力(CDP)和累积非父排除率(CPE)进行计算。结果在548例无关样本中23个STR基因座共计检出260个等位基因,等位基因频率为0.0009~0.5902,H为0.611~0.885,PIC为0.577~0.864,DP为0.815~0.973(平均DP为0.922),PE为0.089~0.406,CDP=1-3.663×10^(-27),CPE=1-2.668×10^(-16),所有基因座等位基因的分布符合Hardy-Weinberg平衡。结论Microreader^(TM)23HS Plex ID System的23个基因座在中国北方汉族人群中具有良好的多态性,在法医学个人识别、群体遗传学研究、亲子鉴定,特别是复杂亲缘关系鉴定中应用价值较高。
文摘With the advancement of economic globalization,the flow of commodities from one country to another has become closer and closer.Especially in recent years,the logistics industry has been developing rapidly,overseas purchasing agents and cross-border online shopping have been enormously prevailing,and accordingly more and more British and American cosmetics expect to occupy a place in the huge market of China.Therefore,it is particularly important to explore the Chinese translation strategies for British and American cosmetic brands.Based on the theory of reception aesthetics,this thesis takes the corpus Estee Lauder,La mer,and other famous cosmetics brands.The thesis proposes several methods for translating cosmetic brands:transliteration for proper names like person or geography names;free translation to recreate brand aesthetics;creative translation for new brands;and adapted translation for divergence in language habits.Therefore,this thesis is of theoretical and practical significance as far as the field of cosmetics is concerned.
基金supported in part by the National Natural Science Foundation of China(62001356)in part by the National Natural Science Foundation for Distinguished Young Scholar(61825104)+1 种基金in part by the National Key Research and Development Program of China(2022YFC3301300)in part by the Innovative Research Groups of the National Natural Science Foundation of China(62121001)。
文摘Weak signal reception is a very important and challenging problem for communication systems especially in the presence of non-Gaussian noise,and in which case the performance of optimal linear correlated receiver degrades dramatically.Aiming at this,a novel uncorrelated reception scheme based on adaptive bistable stochastic resonance(ABSR)for a weak signal in additive Laplacian noise is investigated.By analyzing the key issue that the quantitative cooperative resonance matching relationship between the characteristics of the noisy signal and the nonlinear bistable system,an analytical expression of the bistable system parameters is derived.On this basis,by means of bistable system parameters self-adaptive adjustment,the counterintuitive stochastic resonance(SR)phenomenon can be easily generated at which the random noise is changed into a benefit to assist signal transmission.Finally,it is demonstrated that approximately 8dB bit error ratio(BER)performance improvement for the ABSR-based uncorrelated receiver when compared with the traditional uncorrelated receiver at low signal to noise ratio(SNR)conditions varying from-30dB to-5dB.
文摘Introduction The main objective of any healthcare establishment must be to ensure the quality of patient care and customer satisfaction. It is necessary to regularly assess patient satisfaction. The aim of this study was to assess the level of satisfaction of customers aged over 18 years attending the emergency department of the health center. Methodology This was a descriptive and analytical cross-sectional study of patients aged 18 years and over, who attended the Samu Municipal emergency department between 02 and 30 May 2023. The satisfaction index was determined using the adapted 2009 SAPHORA-MCO questionnaire and the Likert satisfaction scale. Results A total of 400 patients were surveyed. The average age was 35 years, with a standard deviation of 14.7. Of those surveyed, 51% were women, 87% were educated, 50% lived in Grand Yoff and 59.5% were unemployed. Satisfaction levels linked to perception of the cost of care (72%), waiting time (64.3%), information given to patients (69.1%) and pain management (74 .5%) are fair. On the other hand, the levels of satisfaction linked to administrative procedures (82.5%), staff attitudes towards patients (84%), staff availability (86.4%), patient privacy (89.2%), general atmosphere (87.2%), staff competence (87.3%), and the effectiveness of care (89.4%) were satisfactory. The average waiting time was 38 minutes. However, 32% of patients waited less than 30 minutes and 92% less than an hour. The satisfaction index linked to administration and reception was 72.9% and 79.85%, respectively. The satisfaction index linked to the administration and technical quality of care is equal to 85.8% and 83.7%, respectively. The overall satisfaction index is equal to 80.6%;the level of satisfaction of users of the health structure is satisfactory. Conclusion Patient satisfaction is an essential part of quality care. Patient satisfaction must be based on effective communication from the healthcare team and the creation of a patient-caregiver relationship.
文摘Good translations play a very important role in cultural exchange.The idea of reception aesthetics think the reader as the center in translation process.This paper will study the translation of culture-loaded words from the perspective of reception aesthetics.It is divided into five parts.The first part mainly introduces the background and theoretical foundation of this paper,the second part introduces the writer’s works,the third part gives examples to analyze the culture-loaded words appearing in The Golden Cangue,the fourth part gives examples of the translation methods,and the fifth part is the conclusion.It aims to provide a reference for the English translation of culture-loaded words.
文摘Grounded in reader-centered theories,Reception Aesthetics prioritizes the active engagement and acceptance of target readers.This study examines the translation of children’s literature through the lens of Reception Aesthetics,using Li Wenjun’s rendition of The Secret Garden as a case study.The objective is to scrutinize various aspects of the translation-including vocabulary,syntax,rhetorical devices,and cultural nuances-and to discern how the adaptation and application of diverse translation strategies cater to the aesthetic expectations.
文摘The AGCU X Plus STR system is a newly developed multiplex PCR kit that detects 32 X-chromosomal STR loci simultaneously.These are DXS6807,DXS9895,linkage group 1(DXS10148,DXS10135,DXS8378),DXS9902,DXS6795,DXS6810,DXS10159,DXS10162,DXS10164,DXS7132,linkage group 2(DXS10079,DXS10074,DXS10075),DXS981,DXS6800,DXS6803,DXS6809,DXS6789,DXS7424,DXS101,DXS7133,GATA172D05,GATA165B12,linkage group 3(DXS10103,HPRTB,DXS10101),GATA31E08 and linkage group 4(DXS8377,DXS10134,DXS7423).A major advantage of this kit is that it takes into account linkage between loci,in addition to detecting more X-STR loci.In order to evaluate the forensic application of 32 X-STR fl uorescence amplifi cation system,PCR settings,sensitivity,species specifi city,stability,DNA mixtures,concordance,stutter,sizing precision,and population genetics investigation were evaluated according to the Scientific Working Group on DNA Analysis Methods(SWGDAM)developmental validation guidelines.The study showed that the genotyping results of each locus were signifi cantly accurate when the DNA template was at least 62.5 pg.Complete profi les were obtained for the 1∶1 and 1∶3 combinations.A total of 209 unrelated individuals from Southern Chinese Han community,consisting of 84 females and 125 males,were selected for population studies,and 285 allele profi les were detected from 32 X-STR loci.The polymorphism information content(PIC)ranged from 0.2721 in DXS6800,to 0.9105 in DXS10135,with an average of 0.6798.DXS10135(PIC=0.9105)was the most polymorphic locus,with discrimination power(DP)of 0.9164 and 0.9871 for the male and female.The cumulative PD_(F),PD_(M),MEC_(trio) and MEC_(duo) valu es were all greater than 0.999999999.There were 78 different DXS10103-HPRTB-DXS10101 haplotypes among the 125 males,and the haplotype diversity was 0.9810.There was no signifi cant difference in the cumulative PD_(F),PD_(M),MEC_(trio) and MEC_(duo) values whether considering linkage or not.In summary,the new X-STR multiplex typing system is effective and reliable,which can be useful in human genetic analysis and kinship testing as a potent complement to autosomal STR typing.
文摘目的 建立基于常用STR分型试剂盒的肿瘤组织身源鉴定方法。方法 采用ForenSeq^(TM) DNA Signature Prep试剂盒检测55例配对肿瘤组织样本(肿瘤组织和同一个体正常组织成对)以及75例无关个体全血样本27个常染色体STR基因座的分型情况,并模拟55例肿瘤组织的全同胞、亲子对分型数据,统计成对肿瘤(paired carcinoma,PC)、肿瘤-无关个体(tumor-unrelated individual,UI)、肿瘤-全同胞(tumor-simulated full sibling,FS)与肿瘤-亲子(tumor-simulated parent-offspring,PO)的共有等位基因个数(number of total identical alleles,A_n)及状态一致性(identity by state,IBS)评分。以上述统计结果作为参照,建立8个常用STR分型试剂盒的肿瘤组织身源鉴定预测模型,并尝试构建一个专用于肿瘤组织身源鉴定的模型。使用另外23例配对肿瘤组织样本的检测结果对鉴定模型的准确性、灵敏度及特异度进行验证与评估。结果 (1)在任一试剂盒中,全不同基因座数量(A_0)在PC组与PO组之间差异无统计学意义。1个相同基因座数量(A_(1))、2个相同基因座数量(A_(2))和IBS评分在PC组与UI、FS、PO组之间差异均有统计学意义。(2)不同STR基因座的A_n与IBS评分在不同组别存在差异,其中,13个STR基因座(CSF1PO、D12S391、D19S433、D20S482、D2S1338、D3S1358、D4S2408、D7S820、D8S1179、FGA、TH01、TPOX、vWA)的A_(2)在PC组均高于其他STR基因座;2个STR基因座(D6S1043、PentaE)的A_(2)在UI组低于其他STR基因座。(3)成功构建了8个常用STR分型试剂盒的肿瘤组织身源鉴定预测模型以及15个STR基因座的肿瘤组织身源鉴定模型(15-STRs),灵敏度均达100%,特异度为97.56%~99.88%,准确度为97.59%~99.89%。其中,15-STRs模型的灵敏度为100%,特异度为99.88%,准确率为99.89%,高于常用商业化试剂盒。结论 本研究成功建立了8个常用STR分型试剂盒的肿瘤组织身源鉴定方法,拓展了肿瘤组织身源鉴定的应用范围。通过比较不同基因座在肿瘤组织身源鉴定中的差异,筛选出了15个特别适用于肿瘤组织身源鉴定的STR基因座,为未来肿瘤组织溯源的试剂盒构建提供了数据基础。
文摘在法庭科学领域推进相关有证标准物质的研制和应用,对建设DNA分析的标准化体系具有重要意义。当前不断涌现新的DNA检验方法,并迅速应用于刑事案件调查,现行方法的有效性和准确性需要标准物质开展认证与验证。DNA STR(short tandem repeat)分型检验是当前法庭科学进行个体身份识别和亲缘关系判断的主要依据,有证DNA标准物质是实现不同实验室间信息资源共享,保障STR分型结果准确可比的标尺。概述了STR检验技术及其过程中使用的国内外标准品和标准物质,并对我国构建STR检验的标准物质体系提出了建议和展望。
文摘目的:调查19个STR基因座在贵州[亻革]家人人群中的遗传多态性分布,为其民族识别提供生物学依据。方法:应用ABI9700型扩增仪和基点认知公司Goldeneye 20A荧光复合扩增系统对106个[亻革]家人无关个体19个STR基因座进行复合扩增,ABI3100型遗传分析仪进行毛细管电泳,GeneMapper ID3.2软件进行基因分型,Modified-Powerstates软件对有关群体遗传学数据进行统计分析。结果:19个STR基因座共检出173个等位基因和497种基因型,其分布符合Hardy-Weinberg平衡定律(P>0.05);杂合度(Heterozygotes,H)为0.585~0.906,亲权指数(typical paternity index,PI)为1.20~5.30,个体识别率(Power of Discrimination,DP)为0.747~0.964,非父排除率(power of exclusion,PE)为0.273~0.769,多态信息含量(polymorphism information content,PIC)为0.50~0.90。结论:19个STR基因座除CSF1PO、TPOX、TH01、D13S317、D7S820、D16S539外,其余具有高度多态性,并在法医学个体识别和亲权鉴定中具有较高的应用价值。
文摘Reception theory stresses reader's activeness.Translation of Chinese Menu in English Version reveals the universal principles of transnational strategies and methods of menu translation.Through analysis of Chinese Menu in English Version,the article studies its text and examines the linking mechanism between reception theory and menu translation.A comparative conclusion shows that in menu translation attention is paid to the accuracy of the target text by translators,who are simultaneously aware of the paradox between expectation and acceptance of individual readers.