Modeling pollination ecosystem services requires a spatially explicit, process-based approach because they depend on both the behavioral responses of pollinators to the amount and spatial arrangement of habitat and on the within- and between-season dynamics of pollinator populations in response to land use. We describe a novel pollinator model predicting flower visitation rates by wild central-place foragers (e.g.
View Article and Find Full Text PDFBackground: We performed a randomized, non-comparative phase II study evaluating docetaxel in combination with either daily continuous (protracted IV) 5-fluorouracil or cisplatin administered weekly, concurrent to radiotherapy in the treatment of locally advanced pancreatic carcinoma. Results of the docetaxel plus cisplatin regimen are reported.
Methods: Forty chemotherapy-naive patients with locally advanced pancreatic carcinoma were randomly assigned to receive 5-fluorouracil and docetaxel or docetaxel 20mg/m(2) and cisplatin 20mg/m(2)/week, plus concurrent radiotherapy for 6 weeks.
Objective: To determine the prevalence of heart murmurs in chinchillas (Chinchilla lanigera) and determine whether heart murmurs were associated with cardiac disease.
Design: Retrospective multi-institutional case series.
Animals: 260 chinchillas.
Objective: Hepatocellular carcinoma (HCC) is a highly vascularized tumor in which neoangiogenesis contributes to growth and metastasis. We assessed the safety, efficacy, and potential biomarkers of activity of bevacizumab in patients with advanced HCC.
Methods: In this phase II trial, eligible patients received bevacizumab, 5 mg/kg or 10 mg/kg every 2 weeks.
Introduction: Surgical resection of an undiagnosed lung lesion may lead to unintentional removal of small-cell lung cancer (SCLC). The benefit of perioperative chemotherapy in resected SCLC or large-cell neuroendocrine carcinomas (LCNEC) is not clear.
Methods: This retrospective analysis included limited disease SCLC and LCNEC that had been surgically removed between 1979 and 2007 at a single institution.
Background: To explore possible improvement in the treatment of locally advanced pancreatic carcinoma (LAPC) we performed a randomized, non-comparative phase II study evaluating docetaxel - plus either daily continuous 5 FU or weekly cisplatin concurrent to radiotherapy. We report here the results of the docetaxel plus 5 FU regimen stopped according to the interim analysis. The docetaxel plus cisplatin arm was continued.
View Article and Find Full Text PDFIntroduction: The recently updated meta-analysis of chemotherapy in head and neck cancer (MACH-NC) demonstrated the benefit of the addition of chemotherapy in terms of overall survival in head and neck squamous cell carcinoma (HNSCC). The magnitude of the benefit according to tumour site is unknown as well as their potential interactions with patient or trial characteristics.
Methods: Eighty seven randomized trials performed between 1965 and 2000 were included in the present analysis.
Phase-II trials are a key stage in the clinical development of a new treatment. Their main objective is to provide the required information for a go/no-go decision regarding a subsequent phase-III trial. In single arm phase-II trials, widely used in oncology, this decision relies on the comparison of efficacy outcomes observed in the trial to historical controls.
View Article and Find Full Text PDFObjective: Different treatments have been investigated in head and neck cancers (HNCs) but not all of them have been appraised using pairwise comparison. This has resulted in failure to directly identify the best treatment with standard methods. Mixed treatment comparison (MTC) meta-analysis allows one to perform simultaneous inference regarding all treatments and select the best among them.
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