76 research outputs found
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Effect of Suggestions from a Physically Present Robot on Creative Generation
This study experimentally investigated the effect of sugges-tions from a physically present robot on human creative gener-ation. In the experiments, we used a creative task in which theparticipants were required to draw creatures living on a planetother than the Earth, and a physically present robot, which pro-vided suggestions for creative drawing to the participants withspeech sounds and physical movements. First, the results ofthe pilot experiment confirmed that drawing creativity was en-hanced for the participants supported by a robot; however, theywere unlikely to refer to the suggestions. Based on the re-sults, two hypotheses were developed: the suggestions from arobot offered a variety of different perspectives and facilitatedmetacognition (Hypothesis 1), and the suggestions worked asdistractions and suppressed fixated perspectives (Hypothesis2). The experiment was conducted to investigate these hy-potheses. As a result, Hypothesis 1 was supported. The resultswere discussed based on previous studies
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What are you talking about?: A Cognitive Task Analysis of how specificity incommunication facilitates shared perspective in a confusing collaboration task
This study investigated how participant’s specificity in shar-ing of information in collaborative problem solving was criti-cal to them reaching a successful shared perspective. We ana-lyzed participants’ communication strategies in a collaborativetask designed to make finding common ground challenging.We set out to better understand the difference between suc-cessful and unsuccessful collaborations by conducting a cog-nitive task analysis. From participants’ utterances, we inferredcognitive processes associated with repeating communicationmoves and coded those processes as if-then production rules.We thereby specified the communication strategies used duringinteractions and developed a production-rule model to explainwhether and how shared perspective developed or not. Ourcognitive task analysis indicated that although all collaboratingpairs described the objects they were seeing with a variety offeatures, the successful pairs were more specific in using com-binations of features. Quantitatively, we found significant cor-relations between frequency of combined feature statementsand success in sharing perspectives
CFTM: Continuous time fractional topic model
In this paper, we propose the Continuous Time Fractional Topic Model (cFTM),
a new method for dynamic topic modeling. This approach incorporates fractional
Brownian motion~(fBm) to effectively identify positive or negative correlations
in topic and word distribution over time, revealing long-term dependency or
roughness. Our theoretical analysis shows that the cFTM can capture these
long-term dependency or roughness in both topic and word distributions,
mirroring the main characteristics of fBm. Moreover, we prove that the
parameter estimation process for the cFTM is on par with that of LDA,
traditional topic models. To demonstrate the cFTM's property, we conduct
empirical study using economic news articles. The results from these tests
support the model's ability to identify and track long-term dependency or
roughness in topics over time
Development of Interactive Robot -Emotion Estimation System Using Speech by 1dCNN-
In order for robots to interact smoothly with people, they need to recognize human emotions and express its own emotions through both verbal and non-verbal communication. In non-verbal communication, we naturally do things such as estimating emotions from the tone of the other person\u27s voice while talking. In this study, we developed a system to estimate emotions from features of speech rather than the speaker\u27s words by comparing two different data sets, and compared what features each data set has and how they differ for each subject.The 2021 International Conference on Artificial Life and Robotics (ICAROB 2021), January 21-24, 2021, Higashi-Hiroshima (オンライン開催に変更
Significant Impact of Age on Mortality and Non-significant Impact of Age on Thrombosis and Major Bleeding in Patients with COVID-19: From the CLOT-COVID Study.
AIM: There is scarce data on the impact of age on clinical outcomes in patients with coronavirus disease 2019 (COVID-19). METHOD: The CLOT-COVID Study was a retrospective, multicenter cohort study enrolling 2894 consecutive hospitalized patients with COVID-19 among 16 centers in Japan from April 2021 to September 2021. We divided the entire cohort into five groups according to age strata; -19, 20-39, 40-59, 60-79, and 80- years. RESULTS: Most patients under 19 had mild COVID-19 on admission (99%), while older patients had more severe COVID-19. The incidence rates of clinical outcomes during hospitalization in patients aged ≤ 19, 20-39, 40-59, 60-79, and 80 ≥ years were 0.0%, 0.5%, 2.2%, 2.7%, and 1.5% for thrombosis; 0.0%, 1.2%, 1.5%, 3.4%, and 2.0% for major bleeding; and 0.0%, 0.4%, 2.0%, 12.1%, and 16.8% for all-cause death, respectively. In the stratified analysis according to COVID-19 severity on admission, the incidences of thrombosis were generally higher among patients with more severe status, although those were not significantly different among age strata in all sub-types of COVID-19 severity. However, the incidences of all-cause death were significantly higher with increasing age in all sub-types of COVID-19 severity. CONCLUSIONS: In the current large observational study of patients with COVID-19, the risk of mortality became markedly higher with increased age. However, the risks of thrombosis and major bleeding did not necessarily increase as age increases, which seemed to be consistent irrespective of COVID-19 severity on admission
The current status of thrombosis and anticoagulation therapy in patients with COVID-19 in Japan: From the CLOT-COVID study
BACKGROUND: Data on thrombosis and current real-world management strategies for anticoagulation therapy are scarce but important for understanding current issues and unmet needs of an optimal management of patients with coronavirus disease 2019 (COVID-19). METHOD: The CLOT-COVID Study (thrombosis and antiCoaguLatiOn Therapy in patients with COVID-19 in Japan Study: UMIN000045800) was a retrospective, multicenter cohort study enrolling consecutive hospitalized patients with COVID-19 among 16 centers in Japan from April 2021 to September 2021, and we tried to capture the status of the patients in the fourth and fifth waves of the COVID-19 infections in Japan. We enrolled consecutive hospitalized patients who were diagnosed with COVID-19 and had a positive polymerase chain reaction test obtained from the hospital databases. RESULTS: Among 2894 patients with COVID-19, 1245 (43%) received pharmacological thromboprophylaxis. The proportion of pharmacological thromboprophylaxis increased according to the severity of the COVID-19 in 9.8% with mild COVID-19, 61% with moderate COVID-19, and 97% with severe COVID-19. The types and doses of anticoagulants varied widely across the participating centers. During the hospitalization, 38 patients (1.3%) and 126 (4.4%) underwent ultrasound examinations for the lower extremities and contrast-enhanced computed tomography examinations, respectively, and 55 (1.9%) developed thrombosis, mostly venous thromboembolism (71%). The incidence of thrombosis increased according to the severity of the COVID-19 in 0.2% with mild COVID-19, 1.4% with moderate COVID-19, and 9.5% with severe COVID-19. Major bleeding occurred in 57 patients (2.0%) and 158 (5.5%) died, and 81% of them were due to respiratory failure from COVID-19 pneumonia. CONCLUSIONS: In the present large-scale observational study, pharmacological thromboprophylaxis for hospitalized patients with COVID-19 was common especially in patients with severe COVID-19, and management strategies varied widely across the participating centers. The overall incidence of thrombosis was substantially low with an increased incidence according to the severity of the COVID-19
A System for Worldwide COVID-19 Information Aggregation
The global pandemic of COVID-19 has made the public pay close attention to
related news, covering various domains, such as sanitation, treatment, and
effects on education. Meanwhile, the COVID-19 condition is very different among
the countries (e.g., policies and development of the epidemic), and thus
citizens would be interested in news in foreign countries. We build a system
for worldwide COVID-19 information aggregation
(http://lotus.kuee.kyoto-u.ac.jp/NLPforCOVID-19 ) containing reliable articles
from 10 regions in 7 languages sorted by topics for Japanese citizens. Our
reliable COVID-19 related website dataset collected through crowdsourcing
ensures the quality of the articles. A neural machine translation module
translates articles in other languages into Japanese. A BERT-based
topic-classifier trained on an article-topic pair dataset helps users find
their interested information efficiently by putting articles into different
categories.Comment: Poster on NLP COVID-19 Workshop at ACL 2020, 4 pages, 3 figures, 7
table
The Japanese Clinical Practice Guideline for acute kidney injury 2016
Acute kidney injury (AKI) is a syndrome which has a broad range of etiologic factors depending on different clinical settings. Because AKI has significant impacts on prognosis in any clinical settings, early detection and intervention are necessary to improve the outcomes of AKI patients. This clinical guideline for AKI was developed by a multidisciplinary approach with nephrology, intensive care medicine, blood purification, and pediatrics. Of note, clinical practice for AKI management which was widely performed in Japan was also evaluated with comprehensive literature search
ナマ シラス ノ セイ ショク ニヨル カンセン ガ ウタガワレタ クジラ フクショクモンジョウチュウ ショウ ノ 1レイ
埼玉県在住の男性・64 歳.2012 年11 月初旬,近医で日本海裂頭条虫症の診断を受け,駆虫目的で本院消化器内科を紹介受診.外来で駆虫治療したところ,全長約250 cm の白色紐状で,全体的に肉厚感のある虫体を排出した.虫体は形態学的特徴より日本海裂頭条虫ではなく,クジラ複殖門条虫が強く疑われたため,遺伝子解析を行った.PCR によって増幅されたcytochrome c oxidase subunit 1 遺伝子(cox1)の全長塩基配列を解析したところ,既知のクジラ複殖門条虫の塩基配列と99%の相同性を示したことから,本症例はクジラ複殖門条虫症と確定した.該当患者は,便に白色紐状物が混入する2〜3 か月前に,生シラスを生食しており,これが感染源となった可能性が高いと考えられた.We have reported a case of infection with whale tapeworm,Diplogonoporus balaenopterae, in Dokkyo MedicalUniversity Hospital. The patient, a 64-year-old Japanesemale, living in Saitama Prefecture was admitted to our hospitalon Nov. 1st 2012, owing to pieces of tapeworm beingdischarged. He was treated with Biltricide® (20 mg/kg)and Magcorol P®( 100 g) in the hospital and he expelled atapeworm about 250 cm, in length along with the scolex afterabout 2 hours of treatment. Based on the morphologicalfeatures of the strobila and the scolex we strongly suspectedthat the tapeworm belongs to the genus Diplogonoporus.To identify the species of the discharged tapeworm, thecomplete cox1 gene was amplified by PCR and the nucleotidesequence was analyzed. The sequence showed 99 %homology against those from D. balaenopterae. From theseresults the patient was diagnosed as a diplogonoporiasiscaused by D. balaenopterae, whale tapeworm. We could notfind any proglottides of tapeworm nor eggs in stools whenwe performed follow up medical examinations three monthsafter treatment. Therefore it can be concluded that the patientwas cured of this disease. In most cases the infectionsource of the whale tapeworm to humans is reported ascoming from marine fish such as sardines and bonitos. Thepatient had frequently consumed various kinds of raw marinefish, and we suspect that the infection source can beattributed to eating raw whitebait
The discovery and follow-up of four transiting short-period sub-Neptunes orbiting M dwarfs
Sub-Neptunes with radii of 2–3 R⊕ are intermediate in size between rocky planets and Neptune-sized planets. The orbital properties and bulk compositions of transiting sub-Neptunes provide clues to the formation and evolution of close-in small planets. In this paper, we present the discovery and follow-up of four sub-Neptunes orbiting M dwarfs (TOI-782, TOI-1448, TOI-2120, and TOI-2406), three of which were newly validated by ground-based follow-up observations and statistical analyses. TOI-782 b, TOI-1448 b, TOI-2120 b, and TOI-2406 b have radii of Rp = 2.740 +0.082-0.079 R⊕, 2.769+0.073-0.068 R⊕, 2.120 ± 0.067 R⊕, and 2.830+0.068-0.066 R⊕ and orbital periods of P = 8.02, 8.11, 5.80, and 3.08 days, respectively. Doppler monitoring with the Subaru/InfraRed Doppler instrument led to 2σ upper limits on the masses of <19.1 M⊕, <19.5 M⊕, <6.8 M⊕, and <15.6 M⊕ for TOI-782 b, TOI-1448 b, TOI-2120 b, and TOI-2406 b, respectively. The mass–radius relationship of these four sub-Neptunes testifies to the existence of volatile material in their interiors. These four sub-Neptunes, which are located above the so-called "radius valley," are likely to retain a significant atmosphere and/or an icy mantle on the core, such as a water world. We find that at least three of the four sub-Neptunes (TOI-782 b, TOI-2120 b, and TOI-2406 b), orbiting M dwarfs older than 1 Gyr, are likely to have eccentricities of e ∼ 0.2–0.3. The fact that tidal circularization of their orbits is not achieved over 1 Gyr suggests inefficient tidal dissipation in their interiors.Peer reviewe
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