Using accumulated degree-days to estimate postmortem interval from the DNA yield of porcine skeletal muscle

2009 ◽  
Vol 6 (2) ◽  
pp. 83-92 ◽  
Author(s):  
Barbara Larkin ◽  
Stephen Iaschi ◽  
Ian Dadour ◽  
Guan K. Tay
2018 ◽  
Vol 24 (1) ◽  
pp. 35-42
Author(s):  
Young Sam Kim ◽  
Jong Hee Kim ◽  
Kwang Sang Yoon ◽  
Bong Soo Kweon ◽  
Young Sik Kim ◽  
...  

2010 ◽  
Vol 2010 ◽  
pp. 1-7 ◽  
Author(s):  
Laurent Dourel ◽  
Thierry Pasquerault ◽  
Emmanuel Gaudry ◽  
Benoît Vincent

The forensic entomologist uses weather station data as part of the calculation when estimating the postmortem interval (PMI). To reduce the potential inaccuracies of this method caused by the distance between the crime scene and the meteorological station, temperature correlation data from the site of the corpse may be used. This experiment simulated the impact of retrospective weather data correction using linear regression between seven stations and sites in three climatic exposure groups during three different seasons as part of the accumulated degree days calculation for three necrophagous species (Diptera: Calliphoridae). No consistent benefit in the use of correlation or the original data from the meteorological stations was observed. In nine cases out of 12, the data from the weather station network limited the risk of a deviation from reality. The forensic entomologist should be cautious when using this correlation model.


2005 ◽  
Vol 50 (3) ◽  
pp. 1-9 ◽  
Author(s):  
Mary S. Megyesi ◽  
Stephen P. Nawrocki ◽  
Neal H. Haskell

2013 ◽  
Vol 229 (1-3) ◽  
pp. 165.e1-165.e6 ◽  
Author(s):  
Jolandie Myburgh ◽  
Ericka N. L’Abbé ◽  
Maryna Steyn ◽  
Piet J. Becker

2016 ◽  
Vol 42 (1) ◽  
pp. 11-17 ◽  
Author(s):  
Anderson Luiz Durante Danelli ◽  
Erlei Melo Reis

ABSTRACT In experiments conducted in a growth chamber, the chronological time and the accumulated degree-days were determined for the duration of incubation, latent and infectious periods of Phakopsora pachyrhizi cultivars BRSGO 7560 and BRS 246 RR. Detached soybean leaflets were placed in gerbox-type acrylic boxes and inoculated with 20 x 103 uredospores/mL. The study was conducted at 12-h photoperiod and temperatures of 10ºC, 15ºC, 22ºC, 25ºC and 30°C for 30 days. Lesions and uredia/cm2were evaluated and the number of uredia per lesion was quantified after the beginning of sporulation. The sporulation potential was also quantified for cultivars BRSGO 7560 and BRS 246 RR. The steps of the infection process can be quantified based on both the chronological time and the accumulated heat. The cultivar BRSGO 7560 produced 4,012.8 spores/cm2 and BRS 246 RR, 7,348.4 uredospores/cm2. The largest number of uredia was produced at 25ºC in both cultivars; however, BRS 246 RR presented 372.7 uredia/cm2 and BRSGO 7560, 231.6 uredia/cm2. At 10ºC and 30°C, leaf infection did not occur in both cultivars.


1994 ◽  
Vol 74 (2) ◽  
pp. 261-266 ◽  
Author(s):  
H.-H. Mündel ◽  
R. J. Morrison ◽  
R. E. Blackshaw ◽  
T. Entz ◽  
B. T. Roth ◽  
...  

Experiments were conducted for 4 yr at Lethbridge and Brooks, Alberta, and at Morden, Manitoba, to determine the effect of seeding date, cultivar (Saffire, S-208 and Cargill-3) and location on safflower (Carthamus tinctorius L.) yield, oil content, test weight and maturity; and the effect of accumulated degree–days (DD) on yield, oil content and test weight. The early-maturing cultivar, Saffire, produced the least variable yields across seeding dates. For locations and years where fall frosts did not occur before maturity, Cargill-3 produced good yields, even with late seeding; S-208 yielded less in similar situations; however, S-208 generally outyielded Saffire. Highest yields were obtained at Brooks by seeding in late April, at Lethbridge, by seeding in late April or early May. However, at both Alberta locations, Saffire could usually be seeded to mid-May without major yield reduction. At Morden, seeding during the third week of May provided optimum yields. Seeding date had little influence on oil content. Later seeding dates tended to reduce days to maturity and test weight. Safflower matured 3 wk earlier at Morden (earliest site) than at Lethbridge (latest site), with maturity at Brooks averaging 4–8 days earlier than at Lethbridge. Plants required more DD to reach maturity at Morden than at either Alberta location. DD was positively associated with yield of S-208 at both Lethbridge and Morden; for Saffire, only at Lethbridge; and for Cargill-3, only at Morden. DD generally did not significantly affect oil or test weight. Key words: Safflower, Carthamus, agronomy, seeding dates, yield, oil, test weight, maturity, degree–days


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