研究者総覧

高橋 智TAKAHASHI Satoshiタカハシ サトシ

所属部署名研究院自然科学系環境科学領域
職名教授
Last Updated :2022/10/05

researchmap

プロフィール情報

  • 高橋, タカハシ
  • 智, サトシ

学位

  • 博士(理学), 京都大学

研究分野

  • ライフサイエンス, 生態学、環境学

経歴

  • 2007年, -:奈良女子大学大学院人間文化研究科准教授
  • 2000年, -:奈良女子大学大学院人間文化研究科助教授
  • 1997年, -:大阪大学大学院理学研究科講師
  • 1994年, -:大阪大学理学部講師
  • 1994年, -:大阪大学教養部講師
  • 1990年, -:大阪市立大学理学部助手

学歴

  • 1990年, 京都大学, 理学研究科, 生物物理学専攻, 日本国
  • 1990年, 京都大学, Graduate School, Division of Natural Science

所属学協会

  • 日本数理生物学会
  • 日本数学会
  • 日本応用数理学会
  • 日本生態学会
  • 日本動物行動学会
  • 個体群生態学会

Ⅱ.研究活動実績

論文

  • 査読あり, 英語, Zoological Science, Dynamics of Laterality in Relation to the Predator–Prey Interaction between the Piscivorous Chub “Hasu” and Its Prey “Ayu” in Lake Biwa, Michio Hori; Jyun-ichi Kitamura; Masayoshi Maehata; Satoshi Takahashi; Masaki Yasugi, A Japanese piscivorous chub, "hasu" (Opsariichthys uncirostris), and its main prey, "ayu" (Plecoglossus altivelis), both have laterally asymmetric bodies, similar to other fishes; each population consists of righty morphs and lefty morphs. This antisymmetric dimorphism has a genetic basis. Temporal changes in the ratios of laterality (i.e., frequency of righty morphs in a population) of these predator and prey fish species were investigated for a 20-year period at a pelagic site in the southwestern area of Lake Biwa, Japan. The dimorphism of each species was maintained dynamically throughout the period, and the ratio of laterality was found to change periodically in a semi-synchronized manner. Direct inspection of the relationship between the ratios of laterality of the two species indicated that the ratio of ayu followed that of hasu, suggesting that the predator-prey interaction was responsible for the semi-synchronized change. Stomach contents analysis of each hasu revealed that cross-predation, in which righty predators catch lefty prey and lefty predators catch righty prey, occurred more frequently than the reverse combination (parallel-predation). This differential predation is presumed to cause frequency-dependent selection on the two morphs of the predator and prey, and to drive semi-synchronized changes in the laterality of the two species. Some discussion pertaining to the atypical form of the semi-synchronized change in laterality found in this study is presented from the viewpoint of predator-prey interaction in fishes., 2021年03月23日, 38, 3, 231, 237, 研究論文(学術雑誌), 国内誌
  • 査読あり, 英語, Ecology and Evolution, Measuring and evaluating morphological asymmetry in fish: Distinct lateral dimorphism in the jaws of scale-eating cichlids, Hiroki Hata; Masaki Yasugi; Yuichi Takeuchi; Satoshi Takahashi; Michio Hori, The left-right asymmetry of scale-eating Tanganyikan cichlids is described as a unilateral topographical shift of the quadratomandibular joints. This morphological laterality has a genetic basis and has therefore been used as a model for studying negative frequency-dependent selection and the resulting oscillation in frequencies of two genotypes, lefty and righty, in a population. This study aims were to confirm this laterality in Perissodus microlepis Boulenger and P. straeleni (Poll) and evaluate an appropriate method for measuring and testing the asymmetry. Left-right differences in the height of the mandible posterior ends (HMPE) and the angle between the neurocranium and vertebrae of P. microlepis and P. straeleni were measured on skeletal specimens. Snout-bending angle was also measured using a dorsal image of the same individuals following a previous method. To define which distribution model, fluctuating asymmetry (FA), directional asymmetry (DA), or antisymmetry (AS), best fit to the lateral asymmetry of the traits, we provided an R package, IASD. As a result, HMPE and neurocranium-vertebrae angle of both species were best fitted to AS, suggesting that P. microlepis and P. straeleni showed a distinct dimorphism in these traits, although snout-bending angle of P. microlepis was best fitted to FA. Measurement error was low for HMPE comparing the snout-bending angle in P. microlepis, indicating that measuring HMPE is a more accurate method. The scale-eating tribe Perissodini showed distinct antisymmetry in the jaw skeleton and neurocranium-vertebrae angle, and this laterality remains a valid marker for further evolutionary studies. © 2013 The Authors., 2013年11月, 3, 14, 4641, 4647, 研究論文(学術雑誌)
  • 査読無し, その他, J. Theor. Biol., Sexual systems and dwarf males in barnacles: Integrating life history and sex allocation theories, TAKAHASHI Satoshi; S. Yamaguchi; Y. Yusa; K. Sawada, 2013年, 320, 1, 9
  • 査読あり, その他, Theoretical Ecology, Sperm as a paternal investment: a model of sex allocation in sperm-digesting hermaphrodites, Sachi Yamaguchi; Kota Sawada; Yasuhiro Nakashima; Satoshi Takahashi, 2012年02月, 5, 1, 99, 103, 研究論文(学術雑誌)
  • 査読あり, 英語, Evolutionary Ecology Research, Evolution of dwarf males and a variety of sexual modes in barnacles: an ESS approach, Satoru Urano; Sachi Yamaguchi; Shigeyuki Yamato; Satoshi Takahashi; Yoichi Yusa, Questions: Why do barnacles have many modes of sexuality, including hermaphroditism, androdioecy (large hermaphrodites with dwarf males), and dioecy (large females with dwarf males)? Can mating group size, relative body size, competitive advantage or survival rate of dwarf male individuals explain which type of sexuality is favoured by natural selection? Mathematical methods: We developed an ESS model to investigate factors affecting the optimal proportion of larvae that become dwarf males (q*). Allocation to male function of large hermaphrodites is calculated according to Charnov's sex allocation theory, although sperm competition with dwarf males is taken into account. Our model is based on a life history of androdioecious barnacles, which includes hermaphroditism (q* = 0) and dioecy (q* > 0 and the male allocation of large hermaphrodites = 0) as special cases. We incorporate average mating group size (m) into the model, together with body size, competitive advantage, and survival rate of dwarf males relative to large hermaphrodites. Results: The proportion of dwarf males, q*, increases from 0 (hermaphroditism) as mating group size decreases, and approaches 0.5 when group size, m, nears 0. At the latter extreme, large individuals should become females instead of hermaphrodites. Thus mating group size can explain the major trend of sexuality in barnacles: hermaphroditism in relatively large mating groups, androdioecy in smaller groups, and dioecy in even smaller groups. Relative body size, competitive advantage, and survival rate of dwarf males all have positive effects on the evolutionarily stable proportion of males. If there is a simple trade-off between body size and survival rate, survival rate will have the greater influence on sexuality., 2009年07月, 11, 5, 713, 729, 研究論文(学術雑誌)
  • 査読あり, 英語, Journal of Theoretical Biology, Mating group size and evolutionarily stable pattern of sexuality in barnacles, Sachi Yamaguchi; Yoichi Yusa; Shigeyuki Yamato; Satoru Urano; Satoshi Takahashi, Barnacles, marine crustaceans, have various patterns of sexuality depending on species including simultaneous hermaphroditism, androdioecy (hermaphrodites and dwarf males), and dioecy (females and dwarf males). We develop a model that predicts the pattern of sexuality in barnacles by two key environmental factors: (i) food availability and (ii) the fraction of larvae that settle on the sea floor. Populations in the model consist of small individuals and large ones. We calculate the optimal resource allocation toward male function, female function and growth for small and large barnacles that maximizes each barnacle's lifetime reproductive success using dynamic programming. The pattern of sexuality is defined by the combination of the optimal resource allocations. In our model, the mating group size is a dependent variable and we found that sexuality pattern changes with the food availability through the mating group size: simultaneous hermaphroditism appears in food-rich environments, where the mating group size is large, protandric simultaneous hermaphroditism appears in intermediate food environments, where the mating group size also takes intermediate value, the other sexuality patterns, androdioecy, dioecy, and sex change are observed in food-poor environments, where the mating group size is small. Our model is the first one where small males can control their growth to large individuals, and hence has ability to explain a rich spectrum of sexual patterns found in barnacles. © 2008 Elsevier Ltd. All rights reserved., 2008年07月07日, 253, 1, 61, 73, 研究論文(学術雑誌)
  • 査読あり, 英語, Journal of Theoretical Biology, Do tiny males grow up? Sperm competition and optimal resource allocation schedule of dwarf males of barnacles, Sachi Yamaguchi; Yuki Ozaki; Yoichi Yusa; Satoshi Takahashi, Barnacles, marine crustaceans, have three sexual patterns: simultaneous hermaphroditism, dioecy and androdioecy. In dioecy and androdioecy, large individuals (females and hermaphrodites, respectively) are attached by dwarf males. Depending on species, some dwarf males grow up, others do not in their life time. To investigate which environmental conditions affect growth patterns of dwarf males of barnacles, we investigate the evolutionarily stable life history strategy of dwarf males using Pontryagin's maximum principle. Sperm competition among dwarf males and that among dwarf males and large hermaphrodites is taken into account. Dwarf males grow up in food-rich environments, while they do not grow at all in food-poor environments. ESS of the resource allocation schedule between reproduction and growth follows an "intermediate growth strategy" (simultaneous growth and reproduction) for dioecious species, in which sperm competition is not severe. On the other hand, it approaches "bang-bang control" (switching from allocating all resources toward growth then to reproduction), as sperm competition against surrounding large hermaphrodites becomes severe in androdioecious species. © 2006 Elsevier Ltd. All rights reserved., 2007年03月21日, 245, 2, 319, 328, 研究論文(学術雑誌)
  • 査読あり, その他, Tropics, Spatial pattern of landslides due to heavy rains in a Mixed Dipterocarp Forest, north-western Borneo, 高橋 智; 大久保達弘; 谷雅人; 阿子島功; 高橋智; 山倉拓夫; 伊東明; 神崎護, 2007年, 16, 47, 57
  • 査読あり, 英語, APPLIED ENTOMOLOGY AND ZOOLOGY, Effects of dormant duration, body size, self-burial and water condition on the long-term survival of the apple snail, Pomacea canaliculata (Gastropoda : Ampullariidae), Yoichi Yusa; Takashi Wada; Satoshi Takahashi, We investigated factors influencing the survival of the apple snail, Poinacea canalicidata during dormancy in the laboratory at 20-26 degrees C. We placed snails of three size classes in small pots with soil and water, drained the water to induce self-burial, and subsequently checked the snails' survival at intervals. The duration of the dormant period, body size and the success of self-burial all affected the survival of the snails. The effects of water conditions (dry or moist) affected the survival of the snails through interactions with body size and duration. The longest duration of survival under dry conditions was 11 months, and a small proportion of medium-sized and large snails survived the entire experimental period of 29 months under moist conditions., 2006年11月, 41, 4, 627, 632, 研究論文(学術雑誌)
  • 査読あり, 英語, JOURNAL OF THEORETICAL BIOLOGY, Coexistence of competing species by the oscillation of polymorphisms, S Takahashi; M Hori, Scale-eating cichlids in Lake Tanganyika exhibit genetically determined lateral asymmetry, especially in their mouth-opening. Frequencies of the morphs oscillate due to strong frequency-dependent selection caused by the switching of prey's attention, and its delayed effect by their growth period. Two scale-eaters coexist in similar densities at south shore of the lake, with their morph frequencies oscillating in phase. We investigated the effect of the oscillation in morph frequencies to the coexistence of competing species. If the difference of two species' growth period is large, the oscillation facilitates the coexistence of the two species, while small difference of growth periods hinders their coexistence. In the latter case, the species with shorter growth period drives the other species to the extinction. (c) 2005 Elsevier Ltd. All rights reserved., 2005年08月, 235, 4, 591, 596, 研究論文(学術雑誌)
  • 査読あり, 英語, Israel Journal of Mathematics, Dimension spectra of self-affine sets, TAKAHASHI Satoshi, The dimension spectrum H(delta) is a function characterizing the distribution of dimension of sections. Using the multifractal formula for sofic measures, we show that the dimension spectra of irreducible self-affine sets (McMullen's Carpet) coincide with the modified Legendre transform of the free energy Psi(d)(beta). This variational relation leads to the formula of Hausdorff dimension of self-affine sets, max(delta+H(delta)) = Psi(d) (eta), where 71 is the logarithmic ratio of the contraction rates of the affine maps., 2002年, 127, 1, 18, 研究論文(学術雑誌)
  • 査読あり, 英語, JOURNAL OF THEORETICAL BIOLOGY, Oscillation maintains polymorphisms - a model of lateral asymmetry in two competing scale-eating cichlids, S Takahashi; M Hori, Scale-eating cichlids in Lake Tanganyika exhibit lateral asymmetry polymorphism in their mouth-opening. Frequency of left- and right-handed phenotypes oscillates around unity. In the southern shore of the lake, two scale-eaters coexist in similar densities, where their oscillations synchronize. This phenomena is analysed by a time-delay differential equation model, and a new mechanism which maintains polymorphism is discovered. In a wide range of parameters, the oscillation keeps the frequencies of the same phenotype in the two species at a similar level, and prevents the fixation of one phenotype in either species. (C) 1998 Academic Press., 1998年11月, 195, 1, 1, 12, 研究論文(学術雑誌)
  • 査読あり, 英語, Tropics, JAPAN SOCIETY OF TROPICAL ECOLOGY, Fractal dimension of the spatial distribution of Dryobalanops lanceolata in a tropical rain forest, at Lambir, Sarawak, 高橋 智; A. Iwasaki; S. Takahashi; T. Yamakura; M. Kanzaki; A. Itoh; T. Ohkubo; K. Ogino; E. O. K. Chai; H. S. Lee; P. S. Ashton, Dryobalanops lanceolataの空間分布の特徴を相関次元によって解析した.境界及び角で反射した点も数えることにより境界近くのデータの歪みを補正した.相関次元は小さいスケールではおよそ1.33となった.また,スケールによる分布の特徴の変化を示唆する著しい次元の減少と増加が見られた.相関次元はボックス次元やI-delta指数に比べて分布の特徴が変わるスケールに敏感であり,分布の特徴のスケールによる変化を示す新しい指標となり得る。, 1997年, 7, 1, 1, 8
  • 査読あり, 英語, OSAKA JOURNAL OF MATHEMATICS, A shape theorem for the spread of epidemics and forest fires in two-dimensional Euclidean space, M Kamae; S Takahashi, 1996年12月, 33, 4, 915, 925, 研究論文(学術雑誌)
  • 査読あり, 英語, ISRAEL JOURNAL OF MATHEMATICS, Minimal cocycles with the scaling property and substitutions, JM Dumont; T Kamae; S Takahashi, 'Fractal' functions are formulated as a minimal cocycle on a topological dynamics which admits nontrivial scaling transformations. In this paper, it is proved that if in addition it admits a continuous family of scaling transformations, then its capacity is not in o(N-2). We define minimal cocycles with nontrivial scaling transformations coming from substitutions on a finite alphabet which are proved to have capacity O(N), so that they admit only a discrete family of scaling transformations. We also construct one which has capacity O(N-2) and admit a continuous family of scaling transformations., 1996年, 95, 393, 410, 研究論文(学術雑誌)
  • 査読あり, その他, The American Naturalist, Unstable Evolutionarily Stable Strategy and Oscillation: A Model of Lateral Asymmetry in Scale-Eating Cichlids, Satoshi Takahashi; Michio Hori, 1994年12月, 144, 6, 1001, 1020, 研究論文(学術雑誌)
  • 査読あり, 英語, Journal of Mathematical Physics, Unstable geodesics and topological field theory, Yukinori Yasui; Satoshi Takahashi, A topological field theory is used to study the cohomology of mapping space. The cohomology is identified with the Becchi-Rouet-Stora-Tyutin cohomology realizing the physical Hilbert space and the coboundary operator given by the calculations of tunneling between the perturbative vacua. The method is illustrated by a simple example. © 1994 American Institute of Physics., 1994年, 35, 9, 4547, 4567, 研究論文(学術雑誌)
  • 査読あり, 英語, J. Analyse Math, A variational formula for dimension spectra of linear cellular automata, TAKAHASHI Satoshi, Space-time patterns of the evolution of linear cellular automata exhibit self-similar patterns. The distribution of fractal dimensions of space patterns is characterized by dimension spectra. Using multifractal formalism, the dimension spectrum is shown to be equal to the Legendre transformation of the free energy. © 1994 Hebrew University of Jerusalem., 1994年, 64, 1, 1, 51, 研究論文(学術雑誌)
  • 査読あり, 英語, Theor. Popl. Biol., Competitive coexistence in a seasonally fluctuating environment II. Multiple stable states and invasion success, TAKAHASHI Satoshi; T. Namba; S. Takahashi, 1993年, 44, 3, 374, 402, 研究論文(学術雑誌)
  • 査読あり, 英語, J. Comput. Sytem Sci., Self-similarity of linear cellular automata, TAKAHASHI Satoshi, 1992年, 44, 1, 114, 140, 研究論文(学術雑誌)
  • 査読あり, 英語, Physica D, Cellular automata and multifractals: dimension spectra of linear cellular automata, TAKAHASHI Satoshi, 1990年, 45, 1-3, 36, 48, 研究論文(学術雑誌)
  • 査読無し, その他, Proc. Japan Acad., Limiting behaviour of linear cellular automata, TAKAHASHI Satoshi, 1987年, 63A, 182, 185
  • 査読あり, その他, Symmetry, Dynamics of Laterality in Lake Tanganyika Scale-Eaters Driven by Cross-Predation, Michio Hori; Masanori Kohda; Satoshi Awata; Satoshi Takahashi, Scale-eating cichlid fishes, Perissodus spp., in Lake Tanganyika have laterally asymmetrical bodies, and each population is composed of righty and lefty morphs. Righty morphs attack the right side of prey and lefty morphs do the opposite. This anti-symmetric dimorphism has a genetic basis. Temporal changes in the frequencies of morphs in two cohabiting scale-eating species (Perissodus microlepis and P. straeleni) were investigated over a 31-year period on a rocky shore at the southern end of the lake. Dimorphism was maintained dynamically during the period in both species, and the frequencies oscillated with a period of about four years in a semi-synchronized manner. Recent studies have indicated that this type of anti-symmetric dimorphism is shared widely among fishes, and is maintained by frequency-dependent selection between predator and prey species. The combinations of laterality in each scale-eater and its victim were surveyed. The results showed that “cross-predation”, in which righty predators catch lefty prey and lefty predators catch righty prey, occurred more frequently than the reverse combination (“parallel-predation”). The cause of the predominance of cross-predation is discussed from the viewpoint of the physical and sensory abilities of fishes., 2019年01月20日, 11, 1, 119, 119, 研究論文(学術雑誌)
  • 査読あり, その他, Zoological Science, Laterality is Universal Among Fishes but Increasingly Cryptic Among Derived Groups, Michio Hori; Mifuyu Nakajima; Hiroki Hata; Masaki Yasugi; Satoshi Takahashi; Masanori Nakae; Kosaku Yamaoka; Masanori Kohda; Jyun-ichi Kitamura; Masayoshi Maehata; Hirokazu Tanaka; Norihiro Okada; Yuichi Takeuchi, 2017年08月01日, 34, 4, 267, 267, 研究論文(学術雑誌)
  • 査読あり, その他, Journal of Theoretical Biology, Small and poor females change sex: A theoretical and empirical study on protogynous sex change in a triggerfish under varying resource abundance, Sachi Yamaguchi; Satoko Seki; Kota Sawada; Satoshi Takahashi, 2013年01月, 317, 186, 191, 研究論文(学術雑誌)

書籍等出版物

  • 生物の形の多様性と進化, 裳華房, 2003年, その他, 査読無し, その他
  • Macintosh ではじめる C, 牧野書店, 1996年, その他, 査読無し, その他
  • エルゴード理論とフラクタル, シュプリンガー・フェアラーク東京, 1993年, その他, 査読無し, その他
  • Chaos in Australia, World Scientific Publishing, 1993年, その他, 査読無し, その他
  • Chaos in Australia, World Scientific Publishing, 1993年, その他, 査読無し, その他
  • カオス, サイエンス社, 1990年, その他, 査読無し, その他

講演・口頭発表等

  • 日本応用動物昆虫学会, ニクバエの蛹休眠を誘導する臨界日長の性比の進化, 2016年, その他
  • 日本応用動物昆虫学会, 半倍数性害虫における殺虫剤抵抗性発達, 2015年, その他
  • 日本生態学会, 繁殖干渉を伴う島の生物地理モデル, 2014年, その他
  • 浅見崇比呂; 八杉正樹; 堀道雄; 高橋智; Chirasak Sucharit; Somsak Panha, 日本進化学会, 樹上性カタツムリの左右二型にみる進化的安定性, 2013年, その他
  • 国内, 日本生態学会, 左利きホモはどのように消えていくか ― 魚類左右性多型の不和合性の進化, 2009年, その他
  • 国内, 日本生態学会, リッチなメスは性転換しない?ーツマジロモンガラの性転換の数理モデルー, 2009年, その他
  • 国内, 日本生態学会, ハクセンシオマネキの左右性の遺伝システムのモデル, 2009年, その他
  • 日本数理生物学会, Size dependent resource allocation and patterns of sexuality in sedentary marine animals, 2008年, その他
  • 日本動物行動学会, リッチなメスは性転換しない?, 2008年, その他
  • 個体群生態学会, 小さい雄は成長するか?-フジツボ類の矮雄の成長パターンと生活史戦略-, 2008年, その他
  • Japanese Society of Mathmatical Biology, A model on the evolution of cooperation in an asymmetric prisoner’s dilemma in an intertidal crab, 2008年, その他
  • 数理生物学会, 同性間伝播と異性間伝播の両方を考えた HIV のモデル, 2008年, その他
  • 日本数理生物学会, ハクセンシオマネキの左右性の遺伝システムのモデル, 2008年, その他
  • 行動学会, 左利きホモはなぜ存在しない?魚類左右性の遺伝システムの進化, 2008年, その他
  • 行動学会, ハクセンシオマネキの左右性の遺伝システムのモデル, 2008年, その他
  • The Society of Population Ecology, Oscillation induces the evolution of homozygote incompatibilities in the lateral asymmetry genetics of fish, 2008年, その他
  • 個体群生態学会, 干潟の蟹における非対称な囚人のジレンマの協力の進化, 2008年, その他
  • 個体群生態学会, ハクセンシオマネキの左右性の遺伝システムのモデル, 2008年, その他
  • Japanese Society of Mathematical Biology, Size dependent resource allocation and patterns of sexuality in sedentary marine animals, 2008年, その他
  • Japanese Society of Mathmatical Biology, A model on the evolution of cooperation in an asymmetric prisoner’s dilemma in an intertidal crab, 2008年, その他
  • The Society of Population Ecology, Oscillation induces the evolution of homozygote incompatibilities in the lateral asymmetry genetics of fish, 2008年, その他
  • S. Takahashi; M. Hori, 国際, CIJK-MB-2019, Oscillation of laterality in prey-predator system with time delay, due to predation or frequency dependence?, 2019年, 英語
  • 高橋智; 小蕎圭太; 中嶋康裕, 国内, 日本動物行動学会, 非効率な軍備は維持されるか? — キヌハダモドキの性的共食いのモデル, 2018年, その他
  • S. Takahashi; M. Hori, 国際, Society of Mathematical Biology, Predation or frequency dependence, which of them controls dimorphism oscillations in prey predator system?, 2018年, その他

受賞

  • Zoological Science Award, 日本動物学会, Michio Hori;Mifuyu Nakajima;Hiroki Hata;Masaki Yasugi;Satoshi Takahashi;Masanori Nakae;Kosaku Yamaoka;Masanori Kohda;Jyun-ichi Kitamura;Masayoshi Maehata;Hirokazu Tanaka;Norihiro Okada;Yuichi Takeuchi, 2018年06月, Laterality is Universal Among Fishes but Increasingly Cryptic Among Derived Groups

共同研究・競争的資金等の研究課題

  • フラクタル図形の次元スペクトル, 0, 0, 0, 競争的資金
  • 魚類の左右性多型の数理モデル, 0, 0, 0, 競争的資金
  • Dimension spectra of fractals, 0, 0, 0, 競争的資金
  • Mathematical model of lateral asymmetry plymorphisms in fish, 0, 0, 0, 競争的資金

Ⅲ.社会連携活動実績

1.公的団体の委員等(審議会、国家試験委員、他大学評価委員,科研費審査委員等)

  • 日本数理生物学会, 財務担当幹事, 日本数理生物学会, 学協会
  • 日本数理生物学会, 編集委員, 日本数理生物学会, 学協会


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