1,849 research outputs found
Letter from George Yamada
No full textA letter from George Yamada about a publication called Rikka.These materials are from box 73 and 74 of the Frank Chin Papers. The Frank Chin Papers contain personal and professional correspondence between Frank Chin and Michi Weglyn relating to particular projects on which either author was working as well as files related to the Day of Remembrance Tribute to Michi Weglyn
レーザー発振効率改善に向けたNd/Cr:YAGセラミックにおけるエネルギー移乗過程の解明
No full text主査：中野人志 教授 学内授与番号：工第232号
Yoshiyuki Honda, Shinji Motokoshi, Takahisa Jitsuno, Noriaki Miyanaga, Kana Fujioka, Masahiro Nakatsuka, Minoru Yoshida “Temperature dependence of optical properties in Nd/Cr:YAG materials” Journal of Luminescence 2014, Volume 148, Pages 342-346
https://doi.org/10.1016/j.jlumin.2013.12.044 掲載
Yoshiyuki Honda, Shinji Motokoshi, Takahisa Jitsuno, Kana Fujioka, Masahiro Nakatsuka, Minoru Yoshida, Toshihiro Yamada, Junji Kawanaka, Noriaki Miyanaga “Temperature dependent fluorescence decay and energy transfer in Nd/Cr:YAG ceramics” Optical Materials 2019, Volume 90, Pages 215-219
https://doi.org/10.1016/j.optmat.2019.02.032 掲載
Yoshiyuki Honda, Shinji Motokoshi, Takahisa Jitsuno, Kana Fujioka, Toshihiro Yamada, Minoru Yoshida “Concentration-dependent fluorescence decay and energy transfer in Cr3+ and Nd3+ co-doped Y3Al5O12 ceramic powder” Japanese Journal of Applied Physics 2021, 60, 032001
https://doi.org/10.35848/1347-4065/abdd04 掲載
Yoshiyuki Honda, Shinji Motokoshi, Takahisa Jitsuno, Kana Fujioka, Toshihiro Yamada, Minoru Yoshida "Temperature dependence of the small-signal gain of a Cr3+ and Nd3+ co-doped Y3Al5O12 ceramic" Japanese Journal of Applied Physics 2021, 60, 072003
https://doi.org/10.35848/1347-4065/ac06b3 掲載
Yoshiyuki Honda, Shinji Motokoshi, Takahisa Jitsuno, Kana Fujioka, Toshihiro Yamada, Minoru Yoshida “Analyses of energy transfer of Cr 3+ and Nd 3+ co doped Y 3 Al 5 O 12 ceramic powders at the 4 T 1 level of Cr 3+ ion excitation” Japanese Journal of Applied Physics 2022, 61, 022004
https://doi.org/10.35848/1347-4065/ac468e 掲
Reading Yamada Eimi
No full textThe Japanese novelist Yamada Eimi has published many controversial and
popular books. As she herself lives openly and controversially in the same way
that she writes, Yamada Eimi the person is often confused with the narrators of
her stories. This essay is not only a reading of her texts, but also an analysis of
how "Yamada Eimi," the author, is embedded into these texts and then consumed
by the reader.
Starting first with two examples of diametrically opposed readings by the
North American critics Richard Okada and Kuwahara Yasue, I then outline my
reading which falls somewhere in between Okada's and Kuwahara's. Several
Japanese readings of Yamada's writings indicate that Yamada creates her own
world with its own value system and then draws the readers into this system. In
Chapter One, a close reading of three of Yamada's works shows that this system is
an aesthetic code that defines the behaviour, dress and attitude of the female
characters in the stories. Chapter Two then shows how this code is communicated
to the readers. The homosocial "sister" relationships that allow this
communication are also part of how the readers are drawn in. In Chapter Thriee I
combine the aesthetic code with the "sister structure" to illustrate how the reader
is also included in a sister relationship with Yamada Eimi.. Back full circle, I then
show how different readings of the same texts become possible.Arts, Faculty ofAsian Studies, Department ofGraduat
Elucidation of energy transfer process in Nd/Cr:YAG ceramic for improving laser oscillation efficiency
No full text近畿大学Kindai University博士（工学）主査：中野人志 教授 学内授与番号：工第232号
Yoshiyuki Honda, Shinji Motokoshi, Takahisa Jitsuno, Noriaki Miyanaga, Kana Fujioka, Masahiro Nakatsuka, Minoru Yoshida “Temperature dependence of optical properties in Nd/Cr:YAG materials” Journal of Luminescence 2014, Volume 148, Pages 342-346
https://doi.org/10.1016/j.jlumin.2013.12.044 掲載
Yoshiyuki Honda, Shinji Motokoshi, Takahisa Jitsuno, Kana Fujioka, Masahiro Nakatsuka, Minoru Yoshida, Toshihiro Yamada, Junji Kawanaka, Noriaki Miyanaga “Temperature dependent fluorescence decay and energy transfer in Nd/Cr:YAG ceramics” Optical Materials 2019, Volume 90, Pages 215-219
https://doi.org/10.1016/j.optmat.2019.02.032 掲載
Yoshiyuki Honda, Shinji Motokoshi, Takahisa Jitsuno, Kana Fujioka, Toshihiro Yamada, Minoru Yoshida “Concentration-dependent fluorescence decay and energy transfer in Cr3+ and Nd3+ co-doped Y3Al5O12 ceramic powder” Japanese Journal of Applied Physics 2021, 60, 032001
https://doi.org/10.35848/1347-4065/abdd04 掲載
Yoshiyuki Honda, Shinji Motokoshi, Takahisa Jitsuno, Kana Fujioka, Toshihiro Yamada, Minoru Yoshida "Temperature dependence of the small-signal gain of a Cr3+ and Nd3+ co-doped Y3Al5O12 ceramic" Japanese Journal of Applied Physics 2021, 60, 072003
https://doi.org/10.35848/1347-4065/ac06b3 掲載
Yoshiyuki Honda, Shinji Motokoshi, Takahisa Jitsuno, Kana Fujioka, Toshihiro Yamada, Minoru Yoshida “Analyses of energy transfer of Cr 3+ and Nd 3+ co doped Y 3 Al 5 O 12 ceramic powders at the 4 T 1 level of Cr 3+ ion excitation” Japanese Journal of Applied Physics 2022, 61, 022004
https://doi.org/10.35848/1347-4065/ac468e 掲載doctoral thesi
Mo1671 a decision-tree classifier to improve the accuracy of magnification endoscopic assessment of lateral spreading tumours
No full textIntroduction: it is well known that when performing endoscopy for depth diagnosis of T1 colorectal cancer (CRC) one sometimes experiences, the difficulty of depth diagnosis, even with magnification. This is especially the case in lesions containing large nodules. It has been reported that the location of submucosal invasion in laterally spreading tumors (LST) varies between granular type (G) and non-granular type (NG).We hypothesize that the contribution of pit pattern diagnosis and JNET classification using magnified endoscopy is different between LST-G and LST-NG.Methods: a total of 647 LSTs in 612 patients with diagnosed tumor in-situ (Tis) or T1 diagnosed by magnified endoscopy using both pit-pattern and JNET classification were analyzed retrospectively.All lesions were either endoscopically or surgically resected at our institution between Jan 2015 and Dec 2017. All endoscopic findings were recorded in the “Japan Endoscopic Database (JED)”. Independent variables included: JNET classification, macroscopic features, endoscopically estimated lesion size for lesions T1b or deeper. The lesions were divided into LST-G or LST-NG. Histological diagnosis was used as the gold standard for assessing the depth of invasion.The lesions were randomly split 50-50 into test and training datasets and a decision tree classifier was trained on each group using the training data. Then the model was deployed on the test set and a receiver operator curve (ROC) was calculated for each model’s performance on the test set.Results: among all the LSTs, mean size of the lesions were 27.5mm. The ratio of macroscopic features was as follows;The number of LST-G’s was 369 and LST-NG’s 278.Lesions of T1b or deeper were included 91 (24.7%) and 76 (37.3%).The AUC of ROC for LST-G’s was 0.892 in the training data set and 0.846 in the test data set. The weighted variable contribution to the algorithm for the diagnosis of T1b or deeper was as follows; Pit pattern: 0.74, JNET: 0.19, macroscopic features: 0.08, and size of the lesion: 0.0.On the other hand, The AUC for LST-NG’s was 0.931 in the training data set and 0.938 in the validation data set. The variable contribution was as follows; Pit pattern: 0.92, JNET: 0.05, size: 0.02 and macroscopic features: 0.0.The decision tree of LST-NG, a combination of endoscopic findings showed 73% to 96% sensitivity for T1b or deeper and 84% to 98% specificity.LST-G demonstrated 86% sensitivity and 54% to 95% specificity. The specificity was lowest for 0-Is or 0-Is+IIc lesions.Conclusion: pit patterns contributed to the diagnosis of T1b or deeper in both LST-G and LST-NG models. In the case of LST-G with 0-Is component, it appears that depth diagnosis difficult regardless of the size of the lesions. Further research is warranted in this area in order to improve things further
Letter from Yukio Mochizuki to Dr. Yamada, September 28, 1977
No full textIn this itemized memo, Yukio Mochizuki provides updates and commentary on various aspects of his research to Dr. Yamada. He discusses forms for an independent study agreement, drafts of letters he is sending, and books he is reading for his research.Collection of notes, articles, correspondence, photographs, and term papers collected by Yukio Mochizuki, a student at CSU Dominguez Hills, while researching Japanese American incarceration and Japanese Peruvian internment during World War II
Conditional inference tree models to perceive depth of invasion in T1 colorectal cancer
No full textBackground and aim: accurate diagnosis of invasion depth for T1 colorectal cancer is of critical importance as it decides optimal resection technique. Few reports have previously covered the effects of endoscopic morphology on depth assessment. We developed and validated a novel diagnostic algorithm that accurately predicts the depth of early colorectal cancer.Methods: we examined large pathological and endoscopic databases compiled between Jan 2015 and Dec 2018. Training and validation data cohorts were derived and real-world diagnostic performance of two conditional interference tree algorithms (Models 1 and 2) was evaluated against that of the Japan NBI-Expert Team (JNET) classification used by both expert and non-expert endoscopists.Results: model 1 had higher sensitivity in deep submucosal invasion than that of JNET alone in both training (45.1% vs. 28.6%, p < 0.01) and validation sets (52.3% vs. 40.0%, p < 0.01). Model 2 demonstrated higher sensitivity than Model 1 (66.2% vs. 52.3%, p < 0.01) in excluding deeper invasion of suspected Tis/T1a lesions.Conclusion: we discovered that machine-learning classifiers, including JNET and macroscopic features, provide the best non-invasive screen to exclude deeper invasion for suspected Tis/T1 lesions. Adding this algorithm improves depth diagnosis of T1 colorectal lesions for both expert and non-expert endoscopists
Lyctocoris ichikawai Yamada & Yasunaga, sp. nov.
No full textLyctocoris ichikawai Yamada & Yasunaga, sp. nov. (Figs. 1–22) Diagnosis. Distinguished from congeners by the following combination of characters: hemelytra blackish brown with pale yellow markings on basal and median part of clavus, basal part of endocorium, apical part along claval suture and medial fracture in endocorium, and basal part of embolium; membrane smoky dark brown, but subbasal area and area along four veins always semitransparent; labium reaching metasternum; parameres strongly acute at apex; left paramere apically not bent inwardly; genital apophysis rounded at apex, constricted near middle, broadened at base. Description. Coloration. Body (Figs. 1, 20) generally blackish brown. Head (Figs. 1, 3) blackish brown, apex tinged with pale brown; eyes reddish brown; ocelli red to reddish brown. Antennae (Figs. 1, 3) generally fuscous, basal half of segment II tinged with yellowish brown. Labium (Fig. 2) yellowish brown; segment I and II blackish brown. Pronotum (Figs. 1, 3) blackish brown, with posterior margin narrowly pale yellow. Scutellum (Fig. 1) same color as pronotum, with apex pale yellow. Hemelytra (Fig. 1) blackish brown; basal and median part of clavus, basal part of endocorium, apical part along claval suture and medial fracture in endocorium, and basal part of embolium with pale yellow markings; membrane smoky dark brown, but subbasal area and area along four veins always semitransparent. Venter of thorax generally blackish brown. Ostiolar peritreme and evaporatorium (Figs. 2, 4) fuscous. Legs (Fig. 2) blackish brown; coxa brown; trochanter and basal and apical femur pale yellow. Abdomen (Fig. 2) brown to blackish brown; side of each sternum tinged with reddish brown. Structure. Body (Fig. 1) oval, densely covered with short, silky, recumbent setae. Head (Figs. 1, 3, 10) excluding neck about 0.75 times as long as width across eyes, dorsal surface shining; anteocular portion about 0.7 times as long as length of eye in dorsal view; vertex about 1.5 times as wide as width of eye in dorsal view; postocular portion constricted; neck very short; ocelli placed between the eyes, anterior of an imaginary line that passes through the posterior margin of eyes. Antennal segment I (Figs. 1, 3, 10) reaching apex of head, sparsely covered with short recumbent setae; segment II (Figs. 1, 3, 10) about 0.75 times as long as head width across eyes, slightly thickened toward apex, covered with suberect setae, each seta about as long as width of the segment; segments III and IV (Figs. 1, 3, 10) covered with long erect setae intermixed with short recumbent setae, longest seta about twice as long as width of respective segment; segment IV (Figs. 1, 3, 10) weakly flattened, slightly longer than segment III. Labium reaching metasternum; segment III about 2.8 times as long as segment II; segment IV slightly longer than segment II. Pronotum (Figs. 1, 3, 10) trapezoidal, shining; anterior half weakly swollen; posterior half shallowly depressed medially; anterior margin nearly straight, width slightly narrower than mesal length; lateral margin carinate, strongly rounded at anterior angle; posterior margin concave, width about 2.8 times as wide as anterior pronotal width; collar indistinct. Scutellum (Fig. 1) shining, about 0.7 times as long as basal width, shallowly punctate on basal half, rugose on apical half. Hemelytra (Figs. 1, 11) discernibly narrowed toward apex, densely covered with short, silky, recumbent setae and tiny punctures; embolial margin about 1.8 times as long as cuneal margin; maximum width of endocorium about 1.5 times width of embolium; membrane with four distinct veins, middle two veins slightly curved. Ostiolar peritreme (Figs. 4, 6) sharply bending at middle and gradually narrowed anteriad, slightly expanding posteriad at the bend, extending to anterior margin of metapleuron. Fore and mid coxae with several spine-like setae around apex; fore trochanter with brush-like setae on ventral side; fore tibia (Fig. 12) with 23–26 small teeth on ventral side and a few stout spines on apical half, and with large fossula spongiosa at apex; mid tibia (Fig. 13) with 22–23 small teeth on ventral side, apically with fossula spongiosa smaller than that of fore tibia; mid and hind tibiae (Figs. 13, 14) covered with short suberect setae intermixed with several stout spines about as long as width of respective tibia. Abdomen densely covered beneath with short, silky recumbent setae; scissure on abdominal tergite reaching to posterior margin of segment III. Male genitalia (Figs. 5, 7–9, 15– 18): Pygophore (Fig. 15) densely furnished with short erect setae on posterodorsal and posteroventral surface. Parameres (Figs. 16, 17) strongly acute at apex; left paramere curved at middle, apically not bent inwardly, moderately rounded on outer margin, weakly serrate on inner side of apical half; right paramere about half the length of left paramere, weakly serrate on inner side. Phallobase (Fig. 18) symmetrical, with a hole at anterior 1 / 3, slightly narrowed anteriad, deeply emarginate inwardly on posterior margin. Aedeagus (Figs. 5, 7, 8) very long, strongly coiled upwardly, apically with long and straight acus. Female genitalia (Fig. 19): Genital apophysis (Fig. 19) rounded at apex, reaching anterior margin of sternum VI, constricted near middle, broadened at base. Measurements [3 (n= 10)/ Ƥ (n= 10), value for holotype male in parentheses]. Body length 4.50–4.85 (4.85)/ 4.55–5.05; head length (excluding neck) 0.58–0.70 (0.64)/ 0.64–0.68; head width across eyes 0.82–0.91 (0.85)/ 0.86–0.91; vertex width 0.43–0.47 (0.43)/ 0.45–0.48; width between ocelli 0.32–0.35 (0.33)/ 0.33–0.37; lengths of antennal segments I–IV respectively 0.20–0.23 (0.20)/ 0.20–0.22, 0.62–0.69 (0.62)/ 0.63–0.68, 0.42–0.45 (0.42)/ 0.42–0.45, and 0.49–0.52 (0.49)/ 0.49–0.53; lengths of labial segments II–IV respectively 0.36–0.44 (0.44)/ 0.38–0.42, 1.06–1.15 (1.10)/ 1.05–1.20, and 0.45–0.49 (0.45)/ 0.46–0.50; anterior pronotal width 0.58–0.64 (0.59)/ 0.62–0.65; mesal pronotal length 0.63–0.70 (0.66)/ 0.65–0.72; basal pronotal width 1.65–1.87 (1.69)/ 1.68–1.90; length of embolial margin 1.50–1.68 (1.55)/ 1.53–1.68; length of cuneal margin 0.83–0.92 (0.85)/ 0.87–0.96; maximum width across hemelytra 1.86–2.06 (1.87)/ 1.86–2.17. Etymology. Named after Toshihide Ichikawa, the third author, who first discovered this new species and provided the knowledge of its biology. Type material. HOLOTYPE: 3 (Figs. 1 –3, 5, 7–9), ‘[Shikoku] / Kinbuchi Forest Park / Higashiueta-chô / Takamatsu-shi / Kagawa Pref. / 19–20.vii. 2003 / K. Yamada leg.’ (TKPM). PARATYPES: JAPAN [Shikoku] Kagawa Pref.: Miki-chô, Ikenobe, Yoshidagawa Riv.: 13, 28.iv. 2003, T. Ichikawa; 13, 18.viii. 2009, T. Ichikawa; 232 Ƥ, 21.v. 2010, K. Yamada & T. Ichikawa. Takamatsu-shi, Sogouhigashi-machi: 13, 24.vii. 2009, T. Ichikawa; 33 (one in Fig. 15), 5.viii. 2009, T. Ichikawa; 43, 21.v. 2010, K. Yamada & T. Ichikawa; 53 (one in Fig. 20), 25.v. 2011, K. Yamada. Same locality as holotype: 13, 21.viii. 2002, T. Ichikawa; 43 (one in Figs. 4, 6), 11.iv. 2003, T. Ichikawa; 934 Ƥ (one in Fig. 19), 25.iv. 2003, T. Ichikawa; 231 Ƥ, 5.v. 2003, M. Takai; 131 Ƥ, same date, S. Akagi; 23, same date, E. Doi; 1132 Ƥ, same date, T. Yasunaga (AMNH, TYCN); 63 (one in Fig. 10; another in Figs. 11 –14, 16– 18) 2 Ƥ, same data as holotype; 231 Ƥ, 18.viii. 2003, T. Ichikawa; 43, 28.v. 2004, K. Yamada. Takamatsu-shi, Nishiueta-chô: 13, 10.iv. 2007, T. Ichikawa. [Kyushu] Kumamoto Pref.: Koushi-shi, Sakae: 33, vii. 2003, T. Yasunaga. Distribution. Japan (Shikoku, Kyushu). Remarks. This new species is most similar in general appearance to L. zhangi, from which it can be distinguished by the larger body size [3.5–3.9 mm in L. zhangi], parameres strongly acute at apex [blunt at apex], and acus straight [curved]. Also, whereas L. ichikawai resembles L. variegatus in the shape of the male genitalia, the following external characters of the former are significantly different from the latter: posterior margin of pronotum narrowly pale yellow [broadly pale yellow in L. variegatus]; clavus blackish brown, with pale yellow markings on basal and median part [almost pale yellow excluding darkened area along claval suture and inner margin]; embolium blackish brown, with pale yellow markings on basal part [mostly pale yellow, with dark brown on median part]; and apex of left paramere not bent inwardly [rather slender and slightly bent inwardly].Published as part of Yamada, Kazutaka, Yasunaga, Tomohide & Ichikawa, Toshihide, 2012, A new species of Lyctocoridae (Hemiptera: Heteroptera: Cimicoidea) feeding on the exuded sap of Sawtooth Oak, Quercus acutissima, in Japan, pp. 65-74 in Zootaxa 3525 on pages 67-71, DOI: 10.5281/zenodo.28272
Neorealism and the Chinese ideology in Yamada Yoji's family films
No full textBesides Tora-san series and samurai trilogy, veteran Japanese filmmaker Yamada Yoji also endeavors in making family films, however, his ‘home drama’1 genre has long been neglected in academia. To fill this gap, the aims of this research are to investigate firstly the aesthetics of his social realistic films; secondly, what are the family values revealed in his family films and thirdly, how ‘woman’ is portrayed in his ‘home drama’.
Working under the ‘director system’ of Shochiku Studio, this research argues that auteur theory which advocates director as the author of a film is applicable to Yamada and is thus employed to examine family films that are produced between 1970 and 2013. Background information of the auteur (author) and his films are reviewed in Part I of this thesis while Part II will focus on the discussion and analysis of the film aesthetics and motifs of Yamada Yoji’s family films.
Similar to other cultural artefacts, film aesthetics cannot stand apart from the surrounding culture. Italian neorealism which flourished at the time when Yamada entered the film industry will be used to examine Yamada’s stylistic orientation. It is found that except collaborating with professional actors, Yamada’s films display most of the characteristics of Italian neorealism. In the pursuit of aesthetic realism, the “repeated team” (also known as ‘director’s team’) of Yamada at Shochiku Studio helped him to actualize his film aesthetics. With its adoption of ‘director system’ and ‘star system’, Shochiku is also known for producing shomingeki (film of ordinary people), so besides the possible influences from Italian neorealism, Shochiku Studio may have also cast influences to the artistic style of Yamada Yoji.
Through intertextual reading of his social realistic films, the kind of social problem always lies in the dilemma between tradition and progression. Viewing ‘family’ as the fundamental unit of a society, Yamada presents to us the importance of preserving traditional virtues and family values in the continuation of a family so as to the sustainability of a society. This research reaffirms the influence of Chinese ideology on the construction of Japanese family system that the family relationships and the core family values found in films can well be explained by Chinese Confucianism.
Under the patriarchal social context, it is interesting to discover the portrayal of ‘strong woman and weak man’ image in his family films. While the oppression of women is depicted in the process of modernization, the image of ‘strong woman’ is presented through the inscription of femininity in Yamada’s cinematic film texts. Rejecting the binary opposition of sexes, women in Yamada’s films is portrayed to encompass the qualities of masculinity and femininity under the ecriture feminine writing of Yamada. This feminine approach can be regarded as a way out, as proposed by the auteur, to tackle social challenges.
Through an in-depth examination of Yamada Yoji’s family films, this research demonstrates that is a good way to learn more about a culture or a society through social realistic cinema.published_or_final_versionJapanese StudiesDoctoralDoctor of Philosoph
Interpopulation variation of behavioural and morphological traits that affect downstream displacement of the juvenile white‐spotted charr Salvelinus leucomaenis
No full textDownstream displacement is a riverine phenomenon in which organisms are advected by water flow from their home river section to a downstream area. Water flows that cause downstream displacement can be divided into two types: flood flows (Chapman & Kramer, 1991; Good et al., 2001; Meffe, 1984; Sato, 2006; Weese et al., 2011; Yamada & Wada, 2021) and flows under ordinary river conditions (i.e., ordinary flows; Lechner et al., 2016; Nagel et al., 2021; Thiesmeier & Schuhmacher, 1990). Although flood flows can cause catastrophic downstream displacement (Meffe, 1984; Sato, 2006; Weese et al., 2011), occurrences of such downstream displacement are often trait-dependent in riverine fishes (Blondel et al., 2021; Chapman & Kramer, 1991; Good et al., 2001; Meffe, 1984; Yamada & Wada, 2021). For example, smaller individuals are more likely to be displaced by strong floods from their home river section in populations of the molly Poecilia gillii (Kner 1863) (Chapman & Kramer, 1991) and the Trinidadian guppy Poecilia reticulata Peters 1859 (Blondel et al., 2021). Downstream displacement due to ordinary flows can also remove individuals with vulnerable traits from upstream populations. For example, reduced use of low-current habitats in the stickleback Gasterosteus aculeatus (Linnaeus 1758) is correlated with increased downstream displacement under ordinary flow conditions (Jiang et al., 2015). Thus, downstream displacement can be a general evolutionary pressure that removes individuals with low resistance to flow-driven displacement from their home river reaches (Yamada & Wada, 2021)
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