16 research outputs found
Bounding Box Annotation with Visible Status
Training deep-learning-based vision systems requires the manual annotation of
a significant amount of data to optimize several parameters of the deep
convolutional neural networks. Such manual annotation is highly time-consuming
and labor-intensive. To reduce this burden, a previous study presented a fully
automated annotation approach that does not require any manual intervention.
The proposed method associates a visual marker with an object and captures it
in the same image. However, because the previous method relied on moving the
object within the capturing range using a fixed-point camera, the collected
image dataset was limited in terms of capturing viewpoints. To overcome this
limitation, this study presents a mobile application-based free-viewpoint
image-capturing method. With the proposed application, users can collect
multi-view image datasets automatically that are annotated with bounding boxes
by moving the camera. However, capturing images through human involvement is
laborious and monotonous. Therefore, we propose gamified application features
to track the progress of the collection status. Our experiments demonstrated
that using the gamified mobile application for bounding box annotation, with
visible collection progress status, can motivate users to collect multi-view
object image datasets with less mental workload and time pressure in an
enjoyable manner, leading to increased engagement.Comment: 10 pages, 16 figure
Catalytic Activation of 1‑Cyano-3,3-dimethyl-3-(1<i>H</i>)‑1,2-benziodoxole with B(C<sub>6</sub>F<sub>5</sub>)<sub>3</sub> Enabling the Electrophilic Cyanation of Silyl Enol Ethers
The Lewis acidic
activation of a hypervalent iodine reagent containing
a transferable cyano group, 1-cyano-3,3-dimethyl-3-(1<i>H</i>)-1,2-benziodoxole (CDBX), with B(C<sub>6</sub>F<sub>5</sub>)<sub>3</sub>, to achieve the catalytic electrophilic cyanation of silyl
enol ethers is presented. Mechanistic studies indicate that CDBX is
activated through coordination of its cyano group to B(C<sub>6</sub>F<sub>5</sub>)<sub>3</sub>, thus enabling the electrophilic cyanation
reaction to occur
Mountain-climbing bears protect cherry species from global warming through vertical seed dispersal
Mountain-climbing bears protect cherry species from global warming through vertical seed dispersal
The supression of DOCK family members by their specific inhibitors induces the cell fusion of human trophoblastic cells
Mountain-climbing bears protect cherry species from global warming through vertical seed dispersal
One-step encapsulation of siRNA between lipid-layers of multi-layer polycation liposomes by lipoplex freeze-thawing
Recurrent CCND3 mutations in MLL-rearranged acute myeloid leukemia
急性骨髄性白血病の新規遺伝子変異を発見 --乳がんの既存薬が治療に有効である可能性--. 京都大学プレスリリース. 2018-11-01.In acute myeloid leukemia (AML), MLL (KMT2A) rearrangements are among the most frequent chromosomal abnormalities; however, knowledge of the genetic landscape of MLL-rearranged AML is limited. In this study, we performed whole-exome sequencing (n = 9) and targeted sequencing (n = 56) of samples from pediatric MLL-rearranged AML patients enrolled in the Japanese Pediatric Leukemia/Lymphoma Study Group AML-05 study. Additionally, we analyzed 105 pediatric t(8;21) AML samples and 30 adult MLL-rearranged AML samples. RNA-sequencing data from 31 patients published in a previous study were also reanalyzed. As a result, we identified 115 mutations in pediatric MLL-rearranged AML patients (2.1 mutations/patient), with mutations in signaling pathway genes being the most frequently detected (60.7%). Mutations in genes associated with epigenetic regulation (21.4%), transcription factors (16.1%), and the cohesin complex (8.9%) were also commonly detected. Novel CCND3 mutations were identified in 5 pediatric MLL-rearranged AML patients (8.9%) and 2 adult MLL-rearranged AML patients (3.3%). Recurrent mutations of CCND1 (n = 3, 2.9%) and CCND2 (n = 8, 7.6%) were found in pediatric t(8;21) AML patients, whereas no CCND3 mutations were found, suggesting that D-type cyclins exhibit a subtype-specific mutation pattern in AML. Treatment of MLL-rearranged AML cell lines with CDK4/6 inhibitors (abemaciclib and palbociclib) blocked G1 to S phase cell-cycle progression and impaired proliferation. Pediatric MLL-MLLT3–rearranged AML patients with coexisting mutations (n = 16) had significantly reduced relapse-free survival and overall survival compared with those without coexisting mutations (n = 9) (P = .048 and .046, respectively). These data provide insights into the genetics of MLL-rearranged AML and suggest therapeutic strategies
Precision spectroscopy of pionic atoms and chiral symmetry in nuclei
We conduct an experimental project to make spectroscopy of deeply bound pionic atoms systematically over wide range of nuclei. We aim at studying the strong interaction in the low energy region, which has close connection to spontaneous chiral symmetry breaking and its partial restoration in nuclear matter. First experimental results show improved spectral resolution and much better statistical sensitivity than previous experiments. Present status of the experiment is reported