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Endoscopic ultrasound-guided fine-needle aspiration for diagnosing a rare extraluminal duodenal gastrointestinal tumor

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World Journal of Gastrointestinal Endoscopy 2017年第12期9卷 583-589页

作者： Kazunao Hayashi Kenya Kamimura kazunori hosaka Satoshi Ikarashi Junji Kohisa Kazuya Takahashi Kentaro Tominaga Kenichi Mizuno Satoru Hashimoto Junji Yokoyama Satoshi Yamagiwa Kazuyasu Takizawa Toshifumi Wakai Hajime Umezu Shuji Terai Division of Gastroenterology and Hepatology Graduate School of Medical and Dental Sciences Niigata University Division of Digestive and General Surgery Graduate School of Medical and Dental Sciences Niigata University Department of Pathology Niigata University Medical and Dental Hospital

Duodenal gastrointestinal stromal tumors(GISTs) are extremely rare disease entities, and the extraluminal type is difficult to diagnose. These tumors have been misdiagnosed as pancreatic tumors; hence, pancreaticoduodenectomy has been performed, although partial duodenectomy can be performed if accurately diagnosed. Developing a diagnostic methodology including endoscopic ultrasonography(EUS) and fine-needle aspiration(FNA) has allowed us to diagnose the tumor directly through the duodenum. Here, we present a case of a 50-year-old woman with a 27-mm diameter tumor in the pancreatic uncus on computed tomography scan. EUS showed a well-defined hypoechoic mass in the pancreatic uncus that connected to the duodenal proper muscular layer and was followed by endoscopic ultrasoundguided fine-needle aspiration(EUS-FNA). Histological examination showed spindle-shaped tumor cells positively stained for c-kit. Based on these findings, the tumor was finally diagnosed as a duodenal GIST of the extraluminal type, and the patient underwent successful mass resection with partial resection of the duodenum. This case suggests that EUS and EUS-FNA are effective for diagnosing the extraluminal type of duodenal GISTs, which is difficult to differentiate from pancreatic head tumor, and for performing the correct surgical procedure.

关键词： Gastrointestinal stromal tumor Duodenum Extraluminal type Pancreatic head tumor Endoscopic ultrasonography Endoscopic ultrasound-guided fineneedle aspiration Partial resection

QCD Sum Rule Study of π_1s States

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原子核物理评论 2009年第S1期26卷 129-132页

作者： A. hosaka Research Center for Nuclear Physics Osaka University

We study the states π1(1600) and π1(2015) in the QCD sum rule. We classify the tetraquark currents of the quantum numbers IGJPC=1-1-+,and find that the flavor structure (3 6 )(6  3 ) is preferred when using a diquark-antidiquark construction. By using both the SVZ and finite energy sum rules,we obtain a mass around 1.6 and 2.0 GeV,for the states with the quark contents qq and qs,respectively. We also study their decay patterns.

关键词： exotic mesons tetraquark QCD sum rule

Nature experience promotes preference for and willingness to coexist with wild animals among urban and suburban residents in Malaysia

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Ecological Processes 2018年第1期7卷 177-188页

作者： Huda Farhana Mohamad Muslim hosaka Tetsuro Numata Shinya Noor Azlin Yahya Forest Research Institute Malaysia(FRIM) 52109 KepongSelangorMalaysia Department of Tourism Science Graduate School of Urban Environmental ScienceTokyo Metropolitan University1-1 Minami OsawaHachiojiTokyo 192-0397Japan Graduate School for International Development and Cooperation Hiroshima University1-5-1KagamiyamaHigashihiroshima 739-8529Japan.

Introduction:A decline in direct experience with nature can lead to disaffection of natural environments,wildlife,and public indifference towards biodiversity *** study measured on affective attitude towards wildlife(i.e.,preferences for and willingness to coexist with 22 animal species)and examined the relationships between these attitudes and childhood experiences with ***:A face to face interview was carried out in rapidly urbanizing Malaysia for both urban and suburban 357 adults(age>20 years old).Results:It found that Malaysian people liked several insects and squirrels,but disliked mammals *** analysis,with controlling sociodemographic factors(gender,age and ethnicity),showed that childhood nature experience was positively associated with preference for wild animals(standardized path coefficient=0.18;p<0.001),and the preference had a strong correlation with willingness to coexistence(standardized path coefficient=0.61;p<0.001)with the *** nature experience,however,had limited effects on willingness to coexist with the animals via the preference,particularly for unfavourable *** results suggest that preference and willingness scores,even though they were significantly correlated,were different sides of affective attitudes toward ***:Therefore,to promote biodiversity conservation programs,we need strategies to increase acceptance of wild animals via relevant environmental education and public communication,as well as opportunities for nature activities for children.

关键词： Childhood Tropical biodiversity Nature experience Perception Southeast Asia

Origin of Dynamically Generated Baryon Rsonances

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原子核物理评论 2009年第S1期26卷 1-6页

作者： T.Hyodo D.Jido A.hosaka Physik-Department Technische Universitt Mnchen Yukawa Institute for Theoretical Physics Kyoto University Research Center for Nuclear Physics(RCNP)

We study the origin of baryon resonances which are dynamically generated in the chiral unitary approach. We propose a natural renormalization scheme for the dynamical generation of resonances using the low energy chiral interaction and a general feature of the scattering theory. A deviation of a phenomenological scattering amplitude from the natural one is interpreted by an effective pole term interaction of genuine nature which can not be described by the meson-baryon dynamics,reminiscent of the CDD pole. Applying the present method to physical meson-baryon scatterings,we find that the Λ(1405) resonance is dominated by a meson-baryon component forming a KN-πΣ molecular-like structure,while the N(1535) resonance requires some pole contribution.

关键词： baryon resonances dynamical generation chiral unitary approach

Pion Effect of Nuclear Matter in a Chiral Sigma Model

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原子核物理评论 2009年第S1期26卷 75-78页

作者： Y.Ogawa H.Toki A.hosaka Research Center for Nuclear Physics (RCNP) Osaka University

We develop a new framework for the study of the nuclear matter based on the linear sigma model. We introduce a completely new viewpoint on the treatment of the nuclear matter with the inclusion of the pion. We extend the relativistic chiral mean field model by using the similar method in the tensor optimized shell model. We also regulate the pion-nucleon interaction by considering the form-factor and short range repulsion effects. We obtain the equation of state of nuclear matter and study the importance of the pion effect.

关键词： extended relativistic mean field model chiral symmetry pion exchange

Beam based alignment using a neural network

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Nuclear Science and Techniques 2024年第4期35卷 108-118页

作者： Guan-Liang Wang Ke-Min Chen Si-Wei Wang Zhe Wang Tao He Masahito hosaka Guang-Yao Feng Wei Xu National Synchrotron Radiation Laboratory University of Science and Technology of ChinaHefei 230029China Diamond Light Source Oxfordshire OX110DEUK

Beams typically do not travel through the magnet centers because of errors in storage *** beam deviating from the quadrupole centers is affected by additional dipole fields due to magnetic field ***-based alignment(BBA)is often performed to determine a golden orbit where the beam circulates around the quadrupole center *** storage rings with many quadrupoles,the conventional BBA procedure is time-consuming,particularly in the commissioning phase,because of the necessary iterative *** addition,the conventional BBA method can be affected by strong coupling and the nonlinearity of the storage ring *** this study,a novel method based on a neural network was proposed to determine the golden orbit in a much shorter time with reasonable *** golden orbit can be used directly for operation or adopted as a starting point for conventional *** method was demonstrated in the HLS-II storage ring for the first time through simulations and online *** results of the experiments showed that the golden orbit obtained using this new method was consistent with that obtained using the conventional *** development of this new method and the corresponding experiments are reported in this paper.

关键词： Golden orbit Beam-based alignment Neural network Storage ring

Photo-productions of baryon resonances and pentaquarks

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Photo-productions of baryon resonances and pentaquarks

Hepatitis C virus enhances incidence of idiopathic pulmonary fibrosis

The 6th China-Nuclear Physics Symposium

作者： A. hosaka RCNP

We discuss some general aspects of the photoproduction of hyperon resonance Lambda(1520) and the pentaquark Theta+, gamma + N -> K + Y, where K denotes either a kaon or antikaon, and Y either theta+ or Lambda(1520). The production amplitudes are computed by using an effective Lagrangian satisfying the gauge and chiral invariance. The gauge invariance requires the presence of the contact term which

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来源： cnki会议评论

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World Journal of Gastroenterology 2008年第38期14卷 5880-5886页

作者： Yasuji Arase Fumitaka Suzuki Yoshiyuki Suzuki Norio Akuta Masahiro Kobayashi Yusuke Kawamura Hiromi Yatsuji Hitomi Sezaki Tetsuya hosaka Miharu Hirakawa Satoshi Saito Kenji Ikeda Hiromitsu Kumada Department of Hepatology Toranomon HospitalTokyo 105-8470 Japan

AIM： To investigate the cumulative development incidence and predictive factors for idiopathic pulmonary fibrosis in hepatitis C virus （HCV） positive patients. METHODS： We studied 6150 HCV infected patients who were between 40-70 years old （HCV-group）. Another 2050 patients with hepatitis B virus （HBV） were selected as control （HBV-group）. The mean observation period was 8.0 ± 5.9 years in HCV-group and 6.3 ± 5.5 years in HBV-group. The primary goal is the development of idiopathic pulmonary fibrosis （IPF） in both groups. The cumulative appearance rate of IPF and independent factors associated with the incidence rate of IPF were calculated using the Kaplan- Meier method and the Cox proportional hazard model. All of the studies were performed retrospectively by collecting and analyzing data from the patient records in our hospital. RESULTS： Fifteen patients in HCV-group developed IPF. On the other hand, none of the patients developed IPF in HBV-group. In HCV-group, the cumulative rates of IPF development were 0.3% at 10th year and 0.9% at 20th year. The IPF development rate in HCV-group was higher than that in HBV-group （P = 0.021）. The IPF development rate in patients with HCV or HBV was high with statistical significance in the following cases：（1） patients ≥ 55 years （P 〈 0.001）; （2） patients who had smoking index （package per day x year） of ≥20 （P = 0.002）; （3） patients with liver cirrhosis （P = 0.042）. CONCLUSION： Our results indicate that age, smoking and liver cirrhosis enhance the development of IPF in HCV positive patients.

关键词： Hepatitis B virus Hepatitis C virus Idiopathic pulmonary fibrosis A retrospective cohort study

Individual Differences in Cognitive Performance Regulated by Deep-Brain Activity during Mild Passive Hyperthermia and Neck Cooling

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Journal of Behavioral and Brain Science 2016年第8期6卷 305-316页

作者： Emiko Imai Yoshitada Katagiri Hiroshi hosaka Kiyoshi Itao Department of Rehabilitation Science Kobe University Graduate School of Health Science Hyogo Japan Advanced ICT Research Institute National Institute of Information and Communication Technology Tokyo Japan Graduate School of Frontier Science The University of Tokyo Chiba Japan The Advanced Institute of Wearable Environmental Information Networks Tokyo Japan

Hyperthermia-induced decline in cognitive performance is a moderate complication that poses challenges to the maintenance of safety. Although the underlying mechanism can be attributed to the disruption of brain networks, the propensity remains unclear. This study aimed to test the hypothesis that the extent of the alterations in cognitive performance is governed by the activity of deep brain structures, including monoaminergic neural systems. A decline in cognitive performance during mild hyperthermia and the beneficial effects of neck cooling were demonstrated using the Continuous Performance Test as a battery of cognitive tasks. Aspects of cognitive performance were characterized using the deep-brain activity (DBA) index as a neural activity parameter and the State-Trait Anxiety Inventory to assess the extent of alterations in cognitive performance as an individual measure. It was found that a higher average DBA index during tasks is essential for high cognitive performance in the heat. This beneficial effect of DBA is governed by the upper brainstem. This DBA benefit is more significant for individuals with higher average DBA indices at rest in a normal environment. Individual differences in cognitive performance in the heat are governed by differences in DBA. In addition, the beneficial effect of DBA on cognitive performance in heat only applies under conditions including neck cooling. This limited neck-cooling effect is attributed to anti-homeostatic thermoregulatory responses to cognitive tasks regulated by DBA.

关键词： Cognitive Performance Hyperthermia Neck Cooling Deep Brain Electroencephalogram Alpha-2 Rhythm