24,540 research outputs found
Replication Data and Code for: Jack of Fewer Trades: Evolution of Specialization in Research
No full textThe data and programs replicate tables and figures from "Evolution of Specialization in Research", by Kim and Koh. Please see the ReadMe file for additional details
Taking aim at Sox18
No full textA small molecule called Sm4 can disrupt interactions involving a transcription factor called Sox18, while having little impact on other members of the SoxF family. © Kim and Koh1011sciescopu
Author Correction: Evaluation of skin cancer resection guide using hyper‑realistic in‑vitro phantom fabricated by 3D printing
No full textThe original version of this Article contained an error in the spelling of the author Taehun Kim which was incorrectly given as Teahun Kim. The original Article has been corrected
Associations between Parental Factors and Children’s Screen Time During the COVID-19 Pandemic in South Korea
No full textThis study investigated how parental depression, parental self-care, family conflict, and parental fear of COVID-19 are associated with children’s screen time during the COVID-19 pandemic. Data were collected online among South Korean families, resulting in 246 parents (59% fathers) with children between 6 and 12 years of age. Path analysis and multi-group structural equation modelling of fathers and mothers were conducted. Parent’s fear of COVID-19 was positively associated with parental depression. Parent’s fear of COVID-19 and parental depression were negatively related to parental self-care, which was negatively linked to family conflict. Family conflict was positively associated with children’s screen time. The relationships between parental factors and children’s screen time were different for mothers and fathers. Our results show that multiple family dynamics interact with children’s screen time, emphasizing the need to look beyond parenting practices in understanding the effects of COVID-19 pandemic on children’s screen time
Protocol for the acquisition and maturation of oligodendrocytes from neonatal rodent brains
No full textSummary: The generation of an oligodendrocyte primary culture model encompassing the diverse stages of the lineage is essential for the in vitro research of oligodendrocyte physiology and pathophysiology. Here, we provide a protocol for generating oligodendrocytes from the neonatal rodent brain. We describe steps for isolating oligodendrocyte progenitor cells (OPCs) through differential centrifugation, their subsequent expansion, passaging, and differentiation.For complete details on the use and execution of this protocol, please refer to Kim et al.1 : Publisher’s note: Undertaking any experimental protocol requires adherence to local institutional guidelines for laboratory safety and ethics
Replication Data and Code for: Short-term impact of COVID-19 on consumption spending and its underlying mechanisms: Evidence from Singapore
No full textThe data and programs replicate tables and figures from "Short-term impact of COVID-19 on consumption spending and its underlying mechanisms: Evidence from Singapore", by Kim, Koh and Zhang. Please see the ReadMe file for additional details
IntegraScale: A Unified Integral Framework for PSF-Aware Quantized Subpixel Image Scaling
No full textTo develop detection and tracking of small, distant objects, data augmentation requires an accurate image-synthesis method that can downsample high-resolution targets to arbitrary scale factors and place them with subpixel precision. Existing approaches decompose downscaling, translation, and blurring into multiple stages, which 1) induce up to 0.5-pixel localization error at subpixel positions, 2) cause energy loss due to information loss at each stage, and 3) increase computational cost while making high-order filters sensitive to quantization. We propose IntegraScale, a unified interpolation framework that simultaneously performs scaling, translation, and point spread function (PSF) application within a single integral formulation. By performing integral computations with an analytic overlap function (f(O)) and a Gaussian function (f(G)), the method faithfully reproduces ideal low-pass behavior and accurate sampling. On comprehensive experiments with 200x200 input images, the proposed method shows strong performance across key metrics. In terms of positional accuracy, the subpixel error of IntegraScale is nearly zero, effectively removing the systematic bias observed in prior methods; at a reduction ratio of 0.057x, it achieves 28.5x lower error than the conventional method (Conv). In efficiency, it is slightly slower than Conv but about 3.5x faster than Lanczos at comparable accuracy. Under input-only quantization at 16/8/4-bit and full 8-bit quantization of the entire pipeline, the centroid MAE remains <= 0.25 pixels across all tested settings. IntegraScale executes a single, PSF-aware discrete integral that eliminates intermediate re-quantization and preserves energy. We also validate an INT8 (W8A8/INT32) path maintaining subpixel accuracy. Overall, through single-pass integral processing and an analytic computational structure, IntegraScale prevents error accumulation and ensures numerical stability, making it readily applicable as a precise image synthesis technique even in resource-constrained settings such as edge computing.
Sense of virtual community: A conceptual framework and empirical validation
No full textThe sense of virtual community is a principal construct in virtual community research. Therefore understanding it in depth is important for studies of communities-of-practice, virtual collaboration, virtual organization, and other critical organizational and information systems issues. This article conceptualizes and operationalizes the sense of virtual community, and validates several of its antecedents. An analysis of 172 members of 44 virtual communities found that the sense of virtual community is affected by the enthusiasm of the community's leaders, off-line activities available to members, and enjoyability. These characteristics had a stronger impact for members of virtual communities that originated on-line than for those in communities that originated off-line. The implications of the findings and future research directions are discussed
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