نتایج جستجو برای: pit lakes
تعداد نتایج: 26447 فیلتر نتایج به سال:
We characterized pit and mound (PM) topography resulting from catastrophic wind in the Coweeta Basin, and located 48 PMs a across a variety of forest types. Our measurements included pit length, width, and depth; and mound height, thickness, and width. Species of fallen trees were identified, and DBH (diameter at breast height, 1.37 m) was measured for biomass determination. We identified five ...
Tropical forests are among the most diverse ecosystems in world, completed by huge biodiversity. An expansion natural resource extraction through open-pit mining activities leads to increasing land and tropical forest degradation. Proper science-based practices needed as an effort reclaim their function. This paper summarizes existing practice of coal mining, covering regulatory aspects reclama...
Aquatic field studies were conducted in Tha Mai District, Chanthaburi Province, Thailand. Larval habitats of Anopheles dirus were examined from November 1986 through June 1988 in 42 manmade gem pits. Larvae were found in pits containing clear water under full or partial shade. The abundance of different kinds of mosquito larvae were related to seasonal changes in these aquatic habitats. Variati...
To test the role of wtPIT-1 (PITWT) or PIT-1 (R271W) (PIT271) in somatolactotroph cells, we established, using inducible lentiviral vectors, sublines of GH4C1 somatotroph cells that allow the blockade of the expression of endogenous PIT-1 and/or the expression of PITWT or PIT271, a dominant negative mutant of PIT-1 responsible for Combined Pituitary Hormone Deficiency in patients. Blocking expr...
Nuclear extracts prepared from growth hormone-secreting (GC) and prolactin-secreting (235-1) rat anterior pituitary cell lines were compared for their ability to bind to the DNA sequences conferring tissue-specificity to the expression of the rat growth hormone (rGH) gene promoter. Cell-specific differences in the interaction of Pit-1, a tissue-specific member of the POU-domain transcription fa...
Pavlovian to instrumental transfer (PIT) is a central factor in how cues influence animal behavior. PIT refers to the capacity of a Pavlovian cue that predicts a reward to elicit or increase a response intended to obtain the same reward. In the present study, using an equine model, we assessed whether PIT occurs in hoofed domestic animals and whether its efficacy can be modulated by temperament...
The oxyntic mucosa of the mouse stomach is lined with a heterogeneous population of cells that form numerous short pits continuous with long tubular glands. Tritiated thymidine radioautography has made it possible to pinpoint the origin of all cell types and to follow the differentiation/migration of different cell lineages along the pit-gland unit. The proliferating multipotent stem cells func...
We welcome Hrudey’s comments (1) regarding “the most noteworthy findings” of Kurek et al. (2) and have thus focused our response to discuss “several features” of the polycyclic aromatic hydrocarbon (PAH) data (and related dibenzothiophenes, DBTs) from Namur Lake. First, historic forest fires cannot adequately explain the overall increasing trends of ΣPAHs, C1–C4 alkylated PAHs, and DBTs at Namu...
The Pit-1 transcription factor (also know as POU1F1) plays a critical role in cell differentiation during organogenesis of the anterior pituitary in mammals and is a transcriptional activator for pituitary gene transcription. Increased expression of Pit-1 has been reported in human tumorigenic breast cells. Here, we found that Pit-1 overexpression or knockdown in human breast cancer cell lines ...
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