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11.
Karlheinz Thiele Steffi Löffler Franziska Günthner Jeanett Edelmann 《Forensic Science International: Genetics Supplement Series》2008,1(1):167-169
The investigation of the X-linked DNA markers are well established in the forensic routine case work. We studied an Ewe population sample from Ghana. The eight X-chromosomal STRs DXS10135, DXS8378, DXS7132, DXS10074, HPRTB, DXS10101, DXS10134 and DXS7423 were analyzed in 182 Ewe individuals (108 females and 74 males) from the region of Sogakofe (Ghana). Allele frequencies and statistical parameter as well as comparison with known data from Germans and with data from an Amharic population (Ethiopia) are presented. 相似文献
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Maura Barbisin Ph.D. Rixun Fang Ph.D. Cristin E. O’Shea B.S. Lisa M. Calandro M.P.H. Manohar R. Furtado Ph.D. Jaiprakash G. Shewale Ph.D. 《Journal of forensic sciences》2009,54(2):305-319
Abstract: The Quantifiler® Duo DNA Quantification kit enables simultaneous quantification of human DNA and human male DNA as well as detection of inhibitors of PCR in a single real-time PCR well. Pooled human male genomic DNA is used to generate standard curves for both human (ribonuclease P RNA component H1) and human male (sex determining region Y) specific targets. A shift in the cycle threshold (CT) values for the internal positive control monitors the presence of PCR inhibitors in a sample. The assay is human specific and exhibits a high dynamic range from 0.023 to 50 ng/μL. In addition, the multiplex assay can detect as little as 25 pg/μL of human male DNA in the presence of a 1000-fold excess of human female DNA. The multiplex assay provides assessment of the DNA extract and guidance for the selection of the appropriate AmpFℓSTR® Amplification Kit to obtain interpretable short tandem repeat profiles. 相似文献
13.
Richard M. Jobin Denise Patterson Youfang Zhang 《Forensic Science International: Genetics Supplement Series》2008,2(3):190-197
The present study involves the development of forensic DNA typing tests and databases for mule deer in the Province of Alberta. Two multiplex PCR reactions interrogating 10 loci were used to analyze samples from three populations of mule deer. Additionally, an amelogenin based sex-typing marker was used to determine the gender of samples. Results show that the tests and databases are appropriate for use in forensic applications. Additionally, the results indicate that there is little population structure in mule deer in Alberta and that no changes to management of this game species are suggested. 相似文献
14.
Mado Vandewoestyne Ph.D. Trees Lepez Ph.D David Van Hoofstat Ph.D. Dieter Deforce Ph.D. 《Journal of forensic sciences》2015,60(3):707-711
In forensics, bloodstains on dark fabrics might be invisible for the naked eye. Although several visualization, presumptive, and confirmatory blood tests have been developed, all have one or more disadvantages, especially on DNA analysis. We report here the use of a visualization assay that can visually detect blood drops up to 1/20 dilution. In this assay, the fabric is placed between two wet filter papers and covered by glass surfaces on both sides. Pressure is applied on the glass surfaces in which bloodstains transfer onto the filter papers through capillary forces. Detected stains can be tested with other more sensitive presumptive blood tests performed on the filter paper. Even more, DNA analysis can be performed on the transferred bloodstains. The presented visualization assay is easy to perform, extremely cheap, requires little hands on time, and does not affect bloodstain pattern analysis. 相似文献
15.
An Accelerated Analytical Process for the Development of STR Profiles for Casework Samples
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Significant efforts are being devoted to the development of methods enabling rapid generation of short tandem repeat (STR) profiles in order to reduce turnaround times for the delivery of human identification results from biological evidence. Some of the proposed solutions are still costly and low throughput. This study describes the optimization of an analytical process enabling the generation of complete STR profiles (single‐source or mixed profiles) for human identification in approximately 5 h. This accelerated process uses currently available reagents and standard laboratory equipment. It includes a 30‐min lysis step, a 27‐min DNA extraction using the Promega Maxwell®16 System, DNA quantification in <1 h using the Qiagen Investigator® Quantiplex HYres kit, fast amplification (<26 min) of the loci included in AmpF?STR® Identifiler®, and analysis of the profiles on the 3500‐series Genetic Analyzer. This combination of fast individual steps produces high‐quality profiling results and offers a cost‐effective alternative approach to rapid DNA analysis. 相似文献
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降解生物检材遗传标记的检测一直是法医学实践和科研的难点。虽然PCR-STR分析技术能在一定程度上检测降解生物检材的遗传标记,但是对于某些高度降解的生物检材如骨骼、牙齿等的PCR-STR分型仍旧十分困难,存在不稳定性和分型异常现象。本文就近几年来PCR-STR分型技术在降解生物检材的法医实践中出现的问题和解决方法作一综述。 相似文献
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POPULATIONS: This study reports the genetic polymorphism observed at 15 short tandem repeat loci D3S1358, TH01, D21S11, D18S51, D5S818, D13S317, D7S820, D16S539, CSF1PO, vWA, D8S1179, TPOX, D2S1338, D19S433, and FGA in four aboriginal populations of Bengal. The analysis was performed to decipher the suitability of CODIS as well as six other highly polymorphic and unlinked markers in Forensic Testing. Studied populations include four tribes: Karmali, Kora, Maheli, and Lodha. 相似文献
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POPULATION: A total of 141 unrelated Chinese Han male individuals living in Liaoning in northeast China. 相似文献