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Jung, Suk-Chae,Smith, Chris L.,Lee, Ki-Sung,Hong, Min-Eui,Kweon, Dae-Hyuk,Stephanopoulos, Gregory,Jin, Yong-Su American Society for Microbiology 2010 Applied and environmental microbiology Vol.76 No.18
<B>ABSTRACT</B><P>A point mutation (E115K) resulting in slower growth of <I>E</I><I>scherichia</I><I>coli</I> DH5α and XL1-Blue in minimal media was identified in the <I>purB</I> gene, coding for adenylosuccinate lyase (ASL), through complementation with an <I>E. coli</I> K-12 genomic library and serial subcultures. Chromosomal modification reversing the mutation to the wild type restored growth phenotypes in minimal media.</P>
Effectiveness of a low-frequency sports-specific resistance and plyometric training programme
Geoff Middleton,Daniel C. Bishop,Chris Smith,Thomas I. Gee 한국코칭능력개발원 2016 International Journal of Coaching Science Vol.10 No.2
This intervention aimed to improve Badminton-specific functional performance of an elite under-19 player (18 years) via a single-weekly resistance and plyometric training (RPT) session for 8-weeks. The athlete’s ‘response-to’ and ‘withdrawal-from’ the RPT were assessed. The athlete (stature: 1.77 m, mass: 81.5 kg) completed the RPT intervention throughout a competitive season. Performance testing was conducted at; baseline, post-intervention (8-weeks) and after withdrawal-from the RPT (16-weeks). Jump height and throwing distance were assessed via countermovement jump (CMJ), standing long-jump (SLJ) and one-arm (1-MBT) and two-arm (2-MBT) medicine-ball throws respectively. Speed and agility were assessed by 5 m and 10 m sprints and ‘sideways’ and ‘four-corner’ tests respectively. A positive change from baseline to post-intervention (8-weeks) was observed in: CMJ (+0.07 m), SLJ (+0.13 m), 1-MBT (+2.25 m) and 2-MBT (+0.26 m). Observed changes in speed and agility were minimal. At the 16-weeks, small declines in CMJ, SLJ, 1-MBT and 2-MBT (0.04 m, 0.04 m, 0.52 m and 0.05 respectively) existed. Small improvements in 5 and 10 m sprint times (-0.12 s to -0.09 s) and side-ways agility were observed (-0.11 s to -0.39 s), possibly explained by conditioning effects of training and competition. An 8-week Badminton-specific RPT programme provided favourable increases in jumps and MB throws. However, such positive changes were not sustained following the withdrawal period.
Jin, Han Jun,Kwak, Kyoung Don,Hong, Seung Bum,Shin, Dong Jik,Han, Myun Soo,Tyler-Smith, Chris,Kim, Wook Elsevier 2006 Forensic Science International Vol.158 No.2-3
<P><B>Abstract</B></P><P>We have analyzed variation of the mitochondrial DNA (mtDNA) hypervariable segments I and II (HVS-I and HVS-II) in 185 randomly chosen individuals from Korea to provide an expanded and reliable Korean database. Combined sequence comparison of HVS-I and HVS-II led to the identification of 167 different haplotypes characterized by 154 variable sites. One hundred and fifty-one of the haplotypes were individual-specific, 14 were found in two individuals and 2 were found in three individuals. A pairwise comparison of the 185 HVS-I/II sequences found an average of 10.11±4.63 differences between individuals. The random match probability and gene diversity for the combined hypervariable regions were estimated at 0.66% and 0.9988, respectively. Analyzing the expanded database including three previously reported data sets and the present data using haplogroup-based comparisons and comparison with closely related sequences allowed errors to be detected and eliminated, thus considerably improving data quality. Sample division comparisons based on <I>Φ</I><SUB>ST</SUB> genetic distance measures revealed no significant population differentiation in the distribution of mtDNA sequence variations between the present data set and a database in The Scientific Working Group on DNA Analysis Methods (SWGDAM), but did indicate differences from other sets of data. Based on the results of mtDNA profiles, almost all of the mtDNA types studied here could be classified into subsets of haplogroups common in east Asia, and show that the Koreans possess lineages from both the southern and the northern haplogroup complexes of east Asian populations. The new data, combined with other mtDNA sequences, demonstrate how useful comparison with closely related mtDNA sequences can be for improving database quality, as well as providing haplotype information for forensic and population genetic analyses in the Korean population.</P>