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Biosignals such as electrocardiogram or photoplethysmogram are widely used for determining and monitoring the medical condition of patients. It was recently discovered that more information could be gathered from biosignals by applying artificial intelligence (AI). At present, one of the most impactful advancements in AI is deep learning. Deep learning-based models can extract important features from raw data without feature engineering by humans, provided the amount of data is sufficient. This AI-enabled feature presents opportunities to obtain latent information that may be used as a digital biomarker for detecting or predicting a clinical outcome or event without further invasive evaluation. However, the black box model of deep learning is difficult to understand for clinicians familiar with a conventional method of analysis of biosignals. A basic knowledge of AI and machine learning is required for the clinicians to properly interpret the extracted information and to adopt it in clinical practice. This review covers the basics of AI and machine learning, and the feasibility of their application to real-life situations by clinicians in the near future.

현재 기록관에서 이루어지는 홍보 방안이 가지는 한계점을 보완하고 보다 폭넓은 이용자들에게 다가가기 위해서는 새로운 측면의 홍보 방안이 요구된다. 최근 웹툰의 시장규모가 확대됨에 따라 기업 및 공공기관에서 웹툰을 활용한 홍보가 크게 증가하였으며 이에 본 연구에서도 기록관을 홍보하기 위한 수단으로 브랜드웹...

Local degradation caused by drain bias ( $V_{\mathrm {\mathbf {DS}}}$ ) stressing is recently considered as a key issue in amorphous InGaZnO (a-IGZO) thin film transistors (TFTs). In this letter, we investigate the instability of turned-OFF a-IGZO TFTs under ac $V_{\mathrm {\mathbf {DS}}}$ stressing. The negative threshold voltage shift, which was well fitted by a stretched exponential function, was accelerated with increasing duty cycle despite the same effective stress time. A capacitance measurement reveals that a higher duty cycle induced more donor states near the drain, implying that the stretched-exponential time dependence cannot be fully explained by trapping mechanism. Temperature-dependent $\tau $ followed the Arrhenius relation, whereas $\beta $ showed unusual temperature dependence in contrast to that under dc $V_{\mathrm {\mathbf {DS}}}$ stressing. These findings suggest an additional origin such as a stress release effect under an ac $V_{\mathrm {\mathbf {DS}}}$ stress other than hopping/tunneling mechanism.

Among many recent methods developing software, the method of component-based development (CBD), which refers to the method of treat-ing software as parts of a larger whole, and developing new applications through the assembly and synthesis of existing software, has been thoroughly studied. CBD, however, has demerits that cause difficulty in making inferences and understanding the code of components. and lack adequate documentation because the method of CBD divides systems according to the functional characteristics of these systems. Therefore, this study shows how to reuse components without difficulty and reduce the development time of systems and development costs by compensat-ing for the weak points of the method of CBD. Aspect-Oriented programming technique has been applied to the method of CBD and the UML diagram for this purpose.

The purpose of this study was to assess the incidence and mortality of distal radius fracture among patients 50 years of age and older with diagnosis code (ICD10; S52.5, S52.6) and treatment code using a nationwide claims database from 2008 to 2012. All patients were followed using patient identification code to identify deaths. Standardized mortality ratios (SMRs) of distal radius fracture were calculated based on age and gender-specific rates in the entire Korean population. The number of distal radius fractures increased by 54.2% over the 5-year study (48,145 in 2008 and 74,240 in 2012). The incidence of distal radius fracture increased from 367.4/100,000 in 2008 to 474.1/100,000 in 2012. The cumulative mortality rate over the first 12 months after distal radius fracture was decreased from 2.0% (968/48,145) in 2008 to 1.4% (1,045/74,240) in 2012. The mean year mortality over 5 years in men (2.6%, 1,279/50,128) over the first 12 months was 1.7-times higher than in women (1.5%, 3,952/257,045). The mean of SMR of distal radius fracture at 1 year post-fracture was 1.45 in men and 1.17 in women. This study using a nationwide database demonstrates that the distal radius fractures are increasing with a decreasing mortality in Korea., Graphical Abstract