3,809 research outputs found
The development status of specialized nursing in ostomy care both in China and abroad
AbstractThe status of ostomy-specialized nurses' training and the specialized care for patients with permanent colostomy both in China and abroad are analyzed. Based on features and characteristics of the development of ostomy care outside China, problems in China's ostomy care are discussed to promote the sustainable development of this type of care
A two-stage framework for short-term wind power forecasting using different feature-learning models
With the growing dependence on wind power generation, improving the accuracy
of short-term forecasting has become increasingly important for ensuring
continued economical and reliable system operations. In the wind power
forecasting field, ensemble-based forecasting models have been studied
extensively; however, few of them considered learning the features from both
historical wind data and NWP data. In addition, the exploration of the
multiple-input and multiple-output learning structures is lacking in the wind
power forecasting literature. Therefore, this study exploits the NWP and
historical wind data as input and proposes a two-stage forecasting framework on
the shelf of moving window algorithm. Specifically, at the first stage, four
forecasting models are constructed with deep neural networks considering the
multiple-input and multiple-output structures; at the second stage, an ensemble
model is developed using ridge regression method for reducing the extrapolation
error. The experiments are conducted on three existing wind farms for examining
the 2-h ahead forecasting point. The results demonstrate that 1) the
single-input-multiple-output (SIMO) structure leads to a better forecasting
accuracy than the other threes; 2) ridge regression method results in a better
ensemble model that is able to further improve the forecasting accuracy, than
the other machine learning methods; 3) the proposed two-stage forecasting
framework is likely to generate more accurate and stable results than the other
existing algorithms
Signaling transduction regulated by 5-hydroxytryptamine 1A receptor and orexin receptor 2 heterodimers
As G-protein-coupled receptors (GPCRs), 5-hydroxytryptamine 1A receptor (5-HT1AR) and orexin receptor 2 (OX2R) regulate the levels of the cellular downstream molecules. The heterodimers of different GPCRs play important roles in various of neurological diseases. Moreover, 5-HT1AR and OX2R are involved in the pathogenesis of neurological diseases such as depression with deficiency of hippocampus plasticity. However, the direct interaction of the two receptors remains elusive. In the present study, we firstly demonstrated the heterodimer formation of 5-HT1AR and OX2R. Exchange protein directly activated by cAMP (Epac) cAMP bioluminescence resonance energy transfer (BRET) biosensor analysis revealed that the expression levels of cellular cAMP significantly increased in HEK293T cells transfected with the two receptors compared with the 5-HT1AR group. Additionally, the cellular level of calcium was upregulated robustly in HEK293T cells co-transfected with 5-HT1AR and OX2R group after agonist treatment. Furthermore, western blotting data showed that 5-HT1AR and OX2R heterodimer decreased the levels of phosphorylation of extracellular signal-regulated kinase (ERK) and cAMP-response element-binding protein (CREB). These results not only unraveled the formation of 5-HT1AR and OX2R heterodimer but also suggested that the heterodimer affected the downstream signaling pathway, which will provide new insights into the function of the two receptors in the brain
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