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Polychlorinated biphenyls (PCBs) are synthetic chemicals, manufactured in volume from about 1929 to the 1970s. Environmental contamination by PCBs has been documented in various substances, including human tissue. PCBs have been measured in human tissue by a variety of analytical methods. PCB levels have been reported as an approximation of total PCB(More)
Changes in documented risk factors for breast cancer and rates of screening cannot completely explain recent increases in incidence or mortality. Established risk factors for breast cancer, including genetics, account for at best 30% of cases. Most of these risk factors can be linked to total lifetime exposure to bioavailable estrogens. Experimental(More)
We considered whether there are discrete windows of vulnerability in the development of cancer and which time periods may be of the greatest importance. Cancer was considered broadly, including cancers in childhood as well as adult cancers that may have an in utero or childhood origin. We concluded that there was evidence from animal and epidemiologic(More)
The minimum postmortem interval can be estimated based on knowledge of the pattern of insect succession on a corpse. To use this approach requires that we take into account the rates of insect development associated with particular climatological conditions of the region. This study is the first to look at insect succession on decomposing carcasses in the(More)
Lysozymes have been described in invertebrates as digestive or immune molecules. We report here the characterization of two novel c-type lysozymes, RpLys-A (EU250274) and RpLys-B (EU250275), isolated from the fat body and digestive tract of immune stimulated Rhodnius prolixus, a major vector of Chagas disease. Transcriptional profiles indicate that the(More)
The Mesembrinellidae (Diptera: Oestroidea) are a group of exclusively Neotropical flies, with 38 recognized species distributed in nine genera. A total of 11 of these species, present in seven genera, were known to occur in Colombia. Huascaromusca obscura Wolff, sp. nov. and H. cordillera Wolff & Ramos-Pastrana, sp. nov. are herein described and their male(More)
The Membracidae are a relatively diverse group with nearly 400 genera and 3200 species. For Colombia 93 genera and 394 species were previously known. Study of the literature and 3744 specimens deposited in ten colections in Colombia, as well as non-systematic collections and field observations done in Colombia between 2011 and 2014, led us to record 116(More)
Larvae of 13 blowfly species from Colombia are described and an illustrated key for all them is presented. All larval instars of Calliphora nigribasis Macquart, Cochliomyia macellaria (Fabricius), Chrysomya albiceps (Wiedemann), Chrysomya megacephala (Fabricius), Hemilucilia segmentaria (Fabricius), Hemilucilia semidiaphana (Rondani), Lucilia eximia(More)
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