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Validation and Application of Skeletochronology for Age Determination of the Ryukyu Ground Gecko, Goniurosaurus kuroiwae(Squamata: Eublepharidae)

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Asian Herpetological Research 2013年第4期4卷 233-241页

作者： takaki kurita Mamoru TODA Graduate School of Engineering and Science University of the Ryukyus Tropical Biosphere Research Center University of the Ryukyus

Skeletochronology is a method commonly used for estimating the age of amphibians and reptiles in the wild. However, the number of lines of arrested growth （LAGs） does not necessarily reflect age in some species. We validated the applicability of this method to an endangered eublepharid gecko, Goniurosaurus kuroiwae, then inferred its longevity and age structures in wild populations. We classified young geckos into three groups using previously published data for early growth： Group 1 contained hatchlings before the first winter, Group 2 contained hatchlings after the first win- ter, and Group 3 included yearlings after the second winter. LAG numbers in these groups were then compared. All individuals in Group 1 possessed a single LAG, which was considered as a hatching line. Most individuals in Groups 2 and 3 possessed one and two additional LAGs, respectively （LAG1 and LAG2）, corroborating the notion that LAGs are formed annually. A few geckos exhibited fewer LAGs than expected. Analysis of variations in LAG and marrow cavity diameter demonstrated that in animals with fewer LAGs, endosteal resorption or fusion of hatching line and LAG1 had occurred. LAG2 was never lost by endosteal resorption and was identifiable by its diameter. Thus, the age of adult geckos could be determined by counting LAGs outward from LAG2. Application of this method to wild populations re- vealed that the longevity of this species is not less than 83 months, but that almost all individuals in fragmented habitats die before 50 months, suggesting lower population sustainability in such habitats.

关键词： age structure endosteal resorption hatching line longevity rapprochement Ryukyu Archipelago

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Effect of super-chilling storage on maintenance of quality and freshness of the Pacific oyster(Crassostrea gigas)

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Food Quality and Safety 2023年第2期7卷 217-225页

作者： Shiliang Dong Yabin Niu Huamao Wei Yumeng Lin Xin Lu Tetsuro Yamashita Kefeng Yu Koichi takaki Chunhong Yuan United Graduate School of Agricultural Sciences lwate UniversityMoriokaIwateJapan College of Food and Pharmaceutical Sciences Ningbo UniversityNingboChina Facultyof Science and Engineering Iwate UniversityMoriokaJapan Faculty of Agriculture lwate UniversityMoriokalwateJapan Agri-Innovation Center lwate UniversityMoriokaIwateJapan

The quality changes of shelled Pacific oysters(Crassostrea gigas)were examined in relation to the effects of superchilling storage at-1 C for 28 d by measuring changes in biochemical properties(microbial analysis,adenosine triphosphate(ATP)-related compounds,pH,free amino acids)and sensory evaluations in this *** results indicated that microorganism growth was significantly inhibited during superchilling *** diphosphate(ADP)and adenosine monophosphate(AMP)accumulated while ATP rapidly decreased in the adductor *** and ADP were the primary components in the other 3 tissues including mantle,gill,and body trunk of oysters,and they remained relatively stable over *** pH and adenylate energy charge in the adductor muscle could be utilized as freshness indicators for shelled ***,there were no significant differences(P>0.05)among the free amino acids during whole *** to the sensory evalu-ations,oysters could be alive and tolerated up to 21 d at-1℃*** study demonstrated that superchilling storage at-1℃could better maintain the eating quality of shelled oysters and the shelf life was extended to 21 d.

关键词： Shelled oyster superchilling ATP-related compounds sensory evaluations shelf life

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Association of antithrombotic therapy with postoperative rebleeding in patients with cerebral amyloid angiopathy

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Chinese Neurosurgical Journal 2023年第3期9卷 159-165页

作者： Taro Yanagawa Hiroki Sato Kaima Suzuki Hidetoshi Ooigawa Masaki Takao Hiroki kurita Department of Cerebrovascular Surgery International Medical CenterSaitama Medical University1397-1 YamaneHidaka CitySaitama 350-1298Japan Stroke Center Sagamihara Kyodo Hospital4-3-1 HashimotodaiMidori-KuSagamihara CityKanagawa-Pref 252-5188Japan Department of Clinical Laboratory National Center of Neurology and PsychiatryNational Center Hospital4-1-1Ogawa-HigashiKodairaTokyo 187-8502Japan

Background Cerebral amyloid angiopathy is a common cause of subcortical hemorrhage in older *** open hematoma removal may be performed for severe subcortical hemorrhage,its safety in patients with cerebral amyloid angiopathy has not been established,and postoperative rebleeding may ***,this study aimed to investigate factors associated with postoperative *** Out of 145 consecutive patients who had undergone craniotomy for surgical removal of subcortical intracerebral hemorrhage between April 2010 and August 2019 at a single institution in Japan,we examined 109 patients with subcortical hemorrhage who met the inclusion *** excluding 30 patients whose tissue samples were unsuitable for the study,the final study cohort comprised 79 *** Of the 79 patients,50(63%)were diagnosed with cerebral amyloid angiopathy(cerebral amyloid angiopathy group)and 29(37%)were not diagnosed with noncerebral amyloid angiopathy(noncerebral amyloid angiopathy group).Postoperative rebleeding occurred in 12 patients(24%)in the cerebral amyloid angiopathy group and in 2 patients(7%)in the noncerebral amyloid angiopathy *** prothrombin time-international normalized ratio and intraoperative bleeding volume were significantly associated with postoperative rebleeding in the cerebral amyloid angiopathy group(odds ratio=42.4,95%confidence interval=1.14-1578;p=0.042 and odds ratio=1.005,95%confidence interval=1.001-1.008;p=0.007,respectively).Conclusions Patients with cerebral amyloid angiopathy-related cerebral hemorrhage who are receiving antithrombotic therapy,particularly warfarin therapy,are at a high risk of postoperative *** registration Registry and Registration Number of the study:19-220,2019/12/23,retrospectively registered.

关键词： Amyloid-β Antithrombotic therapy Cerebral amyloid angiopathy Postoperative rebleeding Subcortical hemorrhage

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Effects of flash-boil shucking on biochemical,sensorial and ultrastructural properties of Yesso Scallop(Mizuhopecten yessoensis)adductor muscle during refrigeration

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Food Quality and Safety 2023年第3期7卷 456-465页

作者： Yabin Niu Shiliang Dong Nobuyoshi Wada Huamao Wei Tetsuro Yamashita Koichi takaki Chunhong Yuan United Graduate School of Agricultural Sciences Iwate UniversityUedaMoriokaIwateJapan Faculty of Agriculture Iwate UniversityUedaMoriokaIwateJapan College of Food and Pharmaceutical Sciences Ningbo UniversityNingboChina Faculty of Science and Engineering Iwate UniversityUedaMoriokaIwateJapan Agri-Innovation Center Iwate UniversityUedaMoriokaIwateJapan

Scallop adductor muscle has great popularity for raw consumption in Japan,but conventionally shucking live scallops with high vitality by knife requires skill and is ***-boil shucking is a convenient shucking method in sushi restaurants for live ***,the effects of this treatment on the quality of its main edible part,the adductor muscle,are not *** study was conducted to investigate the impact of flash-boil shucking on the quality of raw-edible scallop adductor muscle,focusing on flavor-enhancing components and *** treatment could contribute to the formation of flavor-enhancing nucleotides in the external layer of the adductor *** monophosphate content increased with the boiling time,which significantly increased to 1.47±0.42μmol/g in the 30 s-boiled group compared with 0.38±0.13μmol/g in the control group(p<0.05).The rapid adenosine monophosphate accumulation after boiling resulted in a faster accumulation of inosine and hypoxanthine during subsequent refrigeration,which could bring bitterness to aquatic ***-boil shucking had no discernible effect on the proportion of free amino acids relevant to the flavor of scallop adductor muscle,despite the possibility of a reduction in total free amino *** external layer of the scallop adductor muscle could be hardened after flash-boil *** the ultrastructural level,muscle fibers tend to aggregate transversely and contract longitudinally depending on the heating ***-boil shucking is ideal for consuming the raw-edible scallop adductor muscle ***-boil shucking treatment is recommended for households,restaurants,and small factories for treating scallops with high vitality.

关键词： Shellfish flash-boil shucking flavor-enhancing components ultrastructure sensory evaluation

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Effect of Non-Newtonian Viscosity for Surfactant Solutions on Vortex Characteristics in a Swirling Pipe Flow

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Journal of Thermal Science 2005年第4期14卷 357-361,356页

作者： Mizue MUNEKATA Hidefumi takaki Hideki OHBA Kazuyoshi MATSUZAKI Kumamoto University 2-39-1 KurokamiKumamoto 860-8555Japan Tokyo Electron LTD. 650 Mitsuzawa Hosaka-cho NirasakiYamanashi 407-0192Japan

为在一根打漩的管子中的旋涡特征和拖减少率上的表面活化剂答案的非牛顿的粘性的效果流动被压力落下大小，速度侧面大小和粘性大小调查。非牛顿的粘性被幂定律模型(蟿 = kD n ) 代表。使用的表面活化剂答案与 n 有砍变瘦粘性 < 1.0。在... 详细信息

为在一根打漩的管子中的旋涡特征和拖减少率上的表面活化剂答案的非牛顿的粘性的效果流动被压力落下大小，速度侧面大小和粘性大小调查。非牛顿的粘性被幂定律模型(蟿 = kD n ) 代表。使用的表面活化剂答案与 n 有砍变瘦粘性 < 1.0。在这研究的打漩的流动有腐烂打漩并且从 Rankin 鈥檚的旋涡类型变化联合了旋涡到强迫的旋涡。这被显示出腐烂上的砍变瘦粘性的效果打漩紧张由旋涡范畴是不同的并且批评打漩有旋涡类型变化的数字取决于砍变瘦粘性。关键词打漩流动 - 拖减小 - 表面活化剂答案 - 非牛顿的液体 - 旋涡 - LDV CLC 数字 O357.

关键词：牛顿学说粘性流体表面活性剂涡流 LDV

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The Effect of Workplace-Based Sports Participation on the Mental Status of Japanese Workers

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Journal of Power and Energy Engineering 2023年第3期11卷 150-156页

作者： Yosuke Shibata Yasunari kurita Toshiyuki Ojima Department of Community Health and Preventive Medicine Hamamatsu University School of Medicine Hamamatsu Japan Department of Shizuoka Physical Therapy Faculty of Health Science Tokoha University Shizuoka Japan

Whether workplace-based sports are part of a company’s employee welfare program in terms of mental status is unknown. This study examined the impact of workplace-based sports participation on the mental status of Japanese workers. It involved a single-arm intervention comprising participation in a company’s volleyball team. Data on mental status were collected using a simplified version of the Brief Job Stress Questionnaire. Overall, 11 individuals participated, 9 (81.8%) of whom were women;the mean participant age was 38.2 years. Because the intervention was conducted during busy periods, the median (25th and 75th percentiles) score for qualitative job overload significantly increased from 3.0 (2.0, 4.0) to 3.0 (3.0, 4.3) (p = 0.03). Nonetheless, the fatigue score significantly decreased from 3.0 (3.0, 4.3) to 3.0 (2.0, 4.0) (p = 0.03). These results indicate that participation in workplace-based sports can prevent the deterioration of mental status during busy periods.

关键词： Mental Health Occupational Stress Team Sports Volleyball Occupation Groups

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Water-saving irrigation of paddy field to reduce nutrient runoff

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Journal of Environmental Sciences 2010年第6期22卷 885-891页

作者： Tadayoshi Hitomi Yusaku Iwamoto Asa Miura Koji Hamada Kyoji takaki Eisaku Shiratani National Institute for Rural Engineering Kyusyu Regional Agricultural Administration Office

The purpose of this work is to study the effect of a type of water-saving irrigation （WSI） on nutrient runoff of paddy field. The volume of surface drainage was maintained low by WSI. In particular, WSI effectively reduced surface drainage in rain events. Model simulation indicated that net runoff load of total nitrogen （TN） from the paddy field was increased by WSI. Meanwhile, net runoff loads of total phosphorus （TP） and total organic carbon （TOC） from the paddy field was decreased by WSI. Because ponding waters of the study fields were enriched with TP and TOC, WSI reduced runoff of these nutrients by controlling the volume of surface drainage. WSI could be considered an efficient method for reducing runoff loads and could conserve water quality in an agricultural watershed.

关键词： model simulation net runoff load storage capacity surface drainage tank model water management

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High-solids anaerobic mono-digestion of riverbank grass under thermophilic conditions

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Journal of Environmental Sciences 2017年第2期29卷 29-38页

作者： Fetra J.Andriamanohiarisoamanana Nobuyuki Matsunami takaki Yamashiro Masahiro Iwasaki Ikko Ihara Kazutaka Umetsu Graduate School of Animal and Food Hygiene Obihiro University of Agriculture and Veterinary Medicine Graduate School of Agriculture Science Kobe University

The purpose of this study was to investigate the potential of high-solids anaerobic mono-digestion of riverbank grass under thermophilic conditions, focusing on the effects of the strength and the amount of inoculum. Ensiled grass was inoculated with three different inocula; inoculum from liquid anaerobic digester（LI）, inoculum from dry anaerobic digester（DI）, and mixture of LI and DI（MI）, at feedstock-to-inoculum ratio（FIR） of 1, 2 and 4. The ensiling process of riverbank grass reduced moisture content（p 〉 0.05）, while the hemicellulose content was significantly increased from 30.88% to 35.15%（p 〈 0.05）, on dry matter basis. The highest methane production was at an FIR of 2 with MI（167 L/kg VSadded）,which was significantly higher（p 〈 0.05） than with DI, but not significant compared to LI（p 〉 0.05）. At an FIR of 4, digesters inoculated with LI and DI failed to produce methane,whereas 135 LCH4/kg VSaddedwas obtained with MI. The kinetic studies showed that at an FIR of 1 with LI and MI, the inoculum had less of effects on the hydrolysis rate constant（0.269 day-1and 0.245 day-1） and methane production（135 versus 149 L/kg VSadded）; rather,it affected the lag phase. In a thermophilic HS-AD of riverbank grass, the mixture of inoculum with low and high total solids content（TS） helps increase the TS of inoculum and digestion process. An FIR of 2 was deducted to be the limit for a better startup time and higher volumetric productivity of methane.

关键词： Riverbank grass High-solids anaerobic digestion Inoculum Feedstock-to-inoculum ratio Thermophilic temperature

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Degradation rates and products of fluticasone propionate in alkaline solutions

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Journal of Pharmaceutical Analysis 2017年第5期7卷 297-302页

作者： Tadakazu Tokumura Naoko Yoshida Kanami Mori-Yasumoto Osamu Shirota Takuro kurita Laboratory of Pharmaceutics Kagawa School of Pharmaceutical Sciences Tokushima Bunri University Department of Pharmaceutical Sciences School of Pharmacy International University of Health and Welfare Laboratory of Pharmacognosy and Natural Products Chemistry Kagawa School of Pharmaceutical Sciences Tokushima Bunri University

The apparent degradation rate constant of fluticasone propionate(FLT) in 0.1 M NaOH:methanol=1:1 at 37 °C was previously reported to be 0.169 ± 0.003 h^(-1), and four degradation products(products 1–4) were observed in the solution. The aims of the present study were to assess the degradation rates of FLT in other alkaline solutions and clarify the chemical structures of the four degradation products in order to obtain basic data for designing an enema for inflammatory bowel disease. The apparent degradation rate constants in 0.05 M NaOH and 0.1 M NaOH:CH_3CN=1:1 were 0.472 ± 0.013 h^(-1) and 0.154 ± 0.000 h^(-1)(n=3), respectively. The chemical structures of products 1–4 in 0.1 M NaOH:methanol=1:1 were revealed by nuclear magnetic resonance(NMR)and mass spectrometry data. The chemical structure of products 2 was that the 17-position of the thioester moiety of FLT was substituted by a carboxylic acid. The degradation product in 0.1 M NaOH:CH_3CN=1:1 was found to be product 2 based on ~1H NMR data. The degradation product in 0.05 M NaOH was considered to be product 2 based on the retention time of HPLC. These results are useful for detecting the degradation products of FLT by enzymes of the intestinal bacterial flora in the large intestine after dosing FLT as an enema.

关键词： Fluticasone propionate Degradation rate Degradation products Chemical structure Alkaline solution

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Multi-modal Gesture Recognition using Integrated Model of Motion, Audio and Video

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Chinese Journal of Mechanical Engineering 2015年第4期28卷 657-665页

作者： GOUTSU Yusuke KOBAYASHI takaki OBARA Junya KUSAJIMA Ikuo TAKEICHI Kazunari TAKANO Wataru NAKAMURA Yoshihiko Department of Mechano-Informatics School of Information Science and TechnologyUniversity of Tokyo7-3-1 HongoBunkyo-kuTokyoJapan

Gesture recognition is used in many practical applications such as human-robot interaction, medical rehabilitation and sign language. With increasing motion sensor development, multiple data sources have become available, which leads to the rise of multi-modal gesture recognition. Since our previous approach to gesture recognition depends on a unimodal system, it is difficult to classify similar motion patterns. In order to solve this problem, a novel approach which integrates motion, audio and video models is proposed by using dataset captured by Kinect. The proposed system can recognize observed gestures by using three models. Recognition results of three models are integrated by using the proposed framework and the output becomes the final result. The motion and audio models are learned by using Hidden Markov Model. Random Forest which is the video classifier is used to learn the video model. In the experiments to test the performances of the proposed system, the motion and audio models most suitable for gesture recognition are chosen by varying feature vectors and learning methods. Additionally, the unimodal and multi-modal models are compared with respect to recognition accuracy. All the experiments are conducted on dataset provided by the competition organizer of MMGRC, which is a workshop for Multi-Modal Gesture Recognition Challenge. The comparison results show that the multi-modal model composed of three models scores the highest recognition rate. This improvement of recognition accuracy means that the complementary relationship among three models improves the accuracy of gesture recognition. The proposed system provides the application technology to understand human actions of daily life more precisely.

关键词： gesture recognition multi-modal integration hidden Markov model random forests

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