Publications by authors named "David T Price"

Large-scale terrestrial carbon (C) estimating studies using methods such as atmospheric inversion, biogeochemical modeling, and field inventories have produced different results. The goal of this study was to integrate fine-scale processes including land use and land cover change into a large-scale ecosystem framework. We analyzed the terrestrial C budget of the conterminous United States from 1971 to 2015 at 1-km resolution using an enhanced dynamic global vegetation model and comprehensive land cover change data.

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Article Synopsis
  • Many studies use species distribution models to predict future bird ranges, but these often overlook key factors like climate change and harvesting, limiting their effectiveness, especially for boreal birds.
  • This study analyzed how climate change and harvesting impact wildfires and forest processes in eastern Canada’s boreal forests, specifically assessing future habitats for the black-backed woodpecker (BBWO).
  • Findings indicate that while climate change could drastically reduce BBWO productivity, current harvesting practices are the main threat, significantly diminishing old-growth conifer forests and affecting overall biodiversity.
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We report the case of a 66 year old female with a supratrigonal vesicovaginal fistula (VVF) that developed after undergoing radical hysterectomy, chemotherapy and pelvic radiation therapy for advanced cervical cancer. VVF repairs in an irradiated field are known to be complicated procedures with significant morbidity and a high rate of failure due to the effect of radiation. Amniotic membranes have been demonstrated to improve healing rates in difficult to heal wounds.

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Changes in climate and atmospheric CO2 and nitrogen (N) over the last several decades have induced significant effects on forest carbon (C) cycling. However, contributions of individual factors are largely unknown because of the lack of long observational data and the undifferentiating between intrinsic factors and external forces in current ecosystem models. Using over four decades (1956-2001) of forest inventory data at 3432 permanent samples in maritime and boreal regions of British Columbia (B.

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Background And Objective: There are limited national data on pediatric health information technology adoption rates. Our objective was to determine pediatricians' adoption rates of electronic health record systems (EHRs), barriers to adoption, and features of the systems adopted.

Methods: A survey of 1620 randomly selected US members of the American Academy of Pediatrics from February to July 2009 addressed use of EHRs and barriers to adoption.

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Benign prostatic hyperplasia is a common cause of urinary flow obstruction in aging men and may lead to lower urinary tract symptoms (LUTS). Benign prostatic hyperplasia has 2 physiological components: a static component related to increased prostate size and a dynamic component related to increased prostate smooth muscle tone. alpha1-Adrenoceptors (alpha1ARs) maintain prostate smooth muscle tone; hence, alpha1-antagonists (blockers) relax prostate smooth muscle and decrease urethral resistance, ultimately leading to relief of LUTS.

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Background: Development of new therapeutic modalities for human prostate carcinoma has been impeded by a lack of adequate in vitro and in vivo models. Most in vitro studies have been carried out using a limited number of human prostate cancer cell lines that are mostly derived from metastatic tumors sites or are immortalized.

Methods: Characterization of the prostate cancer cell line, HH870, included description of morphology, determination of doubling time, response to androgens, immunocytochemistry, and immunoblotting of proteins known to be associated with prostate carcinoma, karyotyping, fluorescence in situ hybridization (FISH), DNA profiling, and growth as xenograft in athymic rodents.

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Purpose: The most effective therapy for metastatic prostate cancer is androgen deprivation. Genes activated directly or possibly even indirectly by this steroid hormone represent potential targets for anticancer therapy. One such gene may be hTERT, which encodes the catalytic subunit of telomerase.

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Purpose: Positron emission tomography (PET) imaging is used for the metabolic evaluation of cancer. [18F]fluorodeoxyglucose (FDG) is commonly used as a radiotracer but its low cellular uptake rate in prostate cancer limits its usefulness. We evaluated the novel choline analog [18F]fluorocholine (FCH) for detecting androgen dependent and androgen independent prostate cancer, and its metastases.

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Unlabelled: 18F-Fluorocholine (fluoromethyl-dimethyl-2-hydroxyethylammonium [FCH]) has been developed as an oncologic probe for PET. This study evaluates the kinetics and radiation dosimetry of 18F-FCH using murine and human biodistribution data.

Methods: The biodistribution of 18F-FCH was obtained at time points up to 10 h after administration in control and tumor-bearing anesthetized nude mice.

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