Results 121 to 130 of about 2,200,787 (324)
BMC Medical Research Methodology, 2018 Background Investigating the impact of a time-dependent intervention on the probability of long-term survival is statistically challenging. A typical example is stem-cell transplantation performed after successful donor identification from registered ...
Ulrike Pötschger +3 more
doaj +1 more source
Liquidity and Market Microstructure Noise: Evidence from the Pekao Data [PDF]
The availability of ultra-high frequency data justifies the use of a continuous-time approach in stock prices modeling. However, this data contain, apart from the information about the price process, a microstructure noise causing a bias in the realized ...
Malgorzata Doman
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Molecular Oncology, EarlyView.Single circulating tumor cells (sCTCs) from high‐grade serous ovarian cancer patients were enriched, imaged, and genomically profiled using WGA and NGS at different time points during treatment. sCTCs revealed enrichment of alterations in Chromosomes 2, 7, and 12 as well as persistent or emerging oncogenic CNAs, supporting sCTC identity.
Carolin Salmon +9 more
wiley +1 more source
Is it ethical to avoid error analysis?
, 2017 Machine learning algorithms tend to create more accurate models with the availability of large datasets. In some cases, highly accurate models can hide the presence of bias in the data.
García-Martín, Eva, Lavesson, Niklas
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Bidding markets with financial constraints [PDF]
, 2013 We develop a model of bidding markets with financial constraints a la Che and Gale (1998b) in which two firms optimally choose their budgets. First, we provide an alternative explanation for the dispersion of markups and “money left on the table” across ...
Beker, Pablo, Hernando-Veciana, Angel
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Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment
Molecular Oncology, EarlyView.This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley +1 more source
Journal of Accounting and Finance in Emerging EconomiesPurpose: This paper explored how investors in PSX and PMEX make investment decisions that either contribute to the success of PSX and PMEX or seem irrational to them because of the same behavioral factors.
Azam Anwar Khan, Muhammad Waqas
doaj +1 more source
Molecular Oncology, EarlyView.Aldehyde dehydrogenase 1A1 (ALDH1A1) is a cancer stem cell marker in several malignancies. We established a novel epithelial cell line from rectal adenocarcinoma with unique overexpression of this enzyme. Genetic attenuation of ALDH1A1 led to increased invasive capacity and metastatic potential, the inhibition of proliferation activity, and ultimately ...
Martina Poturnajova +25 more
wiley +1 more source
The effects of investor personality and perceptual bias in Tehran stock exchange [PDF]
تحقیقات مالی, 2010 One of the important factors in making financial decisions is perceptual biases. They influence decisions at the time of exchanging stocks. The present research means to identify these common biases among investors and show its relation with their ...
Rasol Sadi +2 more
doaj
The relevance of satisfaction with coverage for health care utilization: evidence from Catalonia [PDF]
This paper discloses satisfaction with medical coverage as a key determinant factor of heath care utilization in Catalonia (Spain). We use data from the 2002 Catalan Health Interview Survey for exploring its relevance either for the event of the visit or
Toni Mora
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