62 research outputs found
Affects of Budgets on Creativity and Revenue
This paper explores the potential factors that could optimize the revenue growth of different companies. These factors include the creativity levels of the head of the business and the budget they have to work with. The businesses analyzed in this paper were Apple and 21st Century Fox
Trion confinement in monolayer MoSe2 by carbon nanotube local gating
We have successfully confined trions into a one-dimensional restricted space
of a MoSe2 device with CNT gate electrodes. The dry transfer process, including
deterministic dry transfer of aligned CNTs, has led to an hBN-encapsulated
MoSe2 device with CNT back gate electrodes. In contrast to a location without
CNT gate electrodes, applying voltage via CNT gate electrodes significantly
alters PL spectra at a location with CNT gate electrodes. PL imaging has
revealed that image contrast from trions is linear along the CNT electrode
underneath, consistent with 1D confinement of trions in response to the CNT
local gating. The confinement width obtained from the PL image is 5.5 x 10^2
nm, consistent with nanoscale 1D confined trions with the diffraction limit
broadening. This work has demonstrated electrical control of excitonic states
at the nanoscale, leading to novel optoelectronic properties and exciton
devices in the future
World Robot Challenge 2020 -- Partner Robot: A Data-Driven Approach for Room Tidying with Mobile Manipulator
Tidying up a household environment using a mobile manipulator poses various
challenges in robotics, such as adaptation to large real-world environmental
variations, and safe and robust deployment in the presence of humans.The
Partner Robot Challenge in World Robot Challenge (WRC) 2020, a global
competition held in September 2021, benchmarked tidying tasks in the real home
environments, and importantly, tested for full system performances.For this
challenge, we developed an entire household service robot system, which
leverages a data-driven approach to adapt to numerous edge cases that occur
during the execution, instead of classical manual pre-programmed solutions. In
this paper, we describe the core ingredients of the proposed robot system,
including visual recognition, object manipulation, and motion planning. Our
robot system won the second prize, verifying the effectiveness and potential of
data-driven robot systems for mobile manipulation in home environments
Evidence of causality of low body mass index on risk of adolescent idiopathic scoliosis: a Mendelian randomization study
IntroductionAdolescent idiopathic scoliosis (AIS) is a disorder with a three-dimensional spinal deformity and is a common disease affecting 1-5% of adolescents. AIS is also known as a complex disease involved in environmental and genetic factors. A relation between AIS and body mass index (BMI) has been epidemiologically and genetically suggested. However, the causal relationship between AIS and BMI remains to be elucidated.Material and methodsMendelian randomization (MR) analysis was performed using summary statistics from genome-wide association studies (GWASs) of AIS (Japanese cohort, 5,327 cases, 73,884 controls; US cohort: 1,468 cases, 20,158 controls) and BMI (Biobank Japan: 173430 individual; meta-analysis of genetic investigation of anthropometric traits and UK Biobank: 806334 individuals; European Children cohort: 39620 individuals; Population Architecture using Genomics and Epidemiology: 49335 individuals). In MR analyses evaluating the effect of BMI on AIS, the association between BMI and AIS summary statistics was evaluated using the inverse-variance weighted (IVW) method, weighted median method, and Egger regression (MR-Egger) methods in Japanese.ResultsSignificant causality of genetically decreased BMI on risk of AIS was estimated: IVW method (Estimate (beta) [SE] = -0.56 [0.16], p = 1.8 × 10-3), weighted median method (beta = -0.56 [0.18], p = 8.5 × 10-3) and MR-Egger method (beta = -1.50 [0.43], p = 4.7 × 10-3), respectively. Consistent results were also observed when using the US AIS summary statistic in three MR methods; however, no significant causality was observed when evaluating the effect of AIS on BMI.ConclusionsOur Mendelian randomization analysis using large studies of AIS and GWAS for BMI summary statistics revealed that genetic variants contributing to low BMI have a causal effect on the onset of AIS. This result was consistent with those of epidemiological studies and would contribute to the early detection of AIS
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