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Contemporary Falconry in Altai-Kazakh in Western Mongolia
Takuya Soma 국립민속박물관 2012 International Journal of Intangible Heritage Vol.7 No.-
A classical form of ‘eagle falconry’ is still practiced in theAltai-Kazakh community of Bayan-Ölgii (Баян-Өлгий)Prefecture in western Mongolia. Their form of falconry isunique in that they use female golden eagles, they hunt onhorseback and foxes are the main prey. This makes itdifferent from any other type of falconry in Asia or Europeand for this reason it is regarded as a form of intangiblecultural heritage. However, little is known about thespecific cultural context in which this activity is practicedand no serious scientific research has hitherto beenconducted into it. The author carried out anthropologicalresearch in the Altai-Kazakh community from July 2011 toJanuary 2012 with financial support from the TakanashiFoundation for Arts and Archaeology. This research wasbased on close observation of the hunters, interviews, andthe author’s own experience of taming a golden eagle atSagsai (Сагсаи) Village. The findings support the view thatthis type of falconry is indeed a unique form of intangiblecultural heritage. In addition, the fact that the practice ofhunting foxes with eagles has declined in recent years,suggests that we should now take action to safeguard thepractice and preserve it for the future. This paper reportsthe preliminary results of research undertaken in thesummer of 2011.
Altai Kazakh falconry as ‘heritage tourism’: the Golden Eagle Festivals of Western Mongolia
Takuya Soma (相馬 拓也),Battulga Sukhee (Сүхээ Баттулга) 국립민속박물관 2014 International Journal of Intangible Heritage Vol.9 No.-
Falconry (or hawking), a centuries-old method of hunting,survives in the Altaic Kazakh pastoralist community inBayan Ulgii (Баян Өлгий/Bayan Ölgii) Aimag (Province) , inWestern Mongolia. The hunters specialise in hunting foxeswith female golden eagles. Over the last decade, the spreadof heritage tourism has brought about positive and negativechanges in the tradition. It has also changed the attitude oflocal eagle hunters towards people and especially towardstourists. Since 2000, the establishment of the Golden EagleFestival (Бүргэдийн наадам/ бүркіт той) has changedfalconry from a way of hunting into something that providesdemonstrations and entertainment for tourists. This research reports on the ambivalent situation of theAltaic Kazakh eagle hunters with (1) a survey of theattitudes of local eagle hunters in the Altai, Sagsai, Tolboand Ulaanhus Sum (Counties), (2) interviews with theauthorities concerned, and (3) ethnographic documentationbased on participant observation. The research describes the role of the Golden Eagle Festival which has become the force for major changes inthe tradition of hunting with eagles. New eagle owners arecoming on the scene while at the same time traditionalhunting activities are almost disappearing. It seems thatsome eagle hunters now hold eagles without having anyknowledge about taming and hunting. The local falconryculture is more complex than ever before and the huntershave various views of the situation. Finally, to focus on this cultural transition from ‘livingtradition’ to ‘post-contextual culture’, this study sets out toidentify criteria and create a master plan for the culturalsustainability of Altaic Kazakh falconry in order to conserveit as ‘on-going’ intangible cultural heritage.
The generalized Cucconi test statistic for the two-sample problem
Takuya Nishino,Hidetoshi Murakami 한국통계학회 2019 Journal of the Korean Statistical Society Vol.48 No.4
When testing hypotheses in two-sample problem, the Lepage test statistic is often used to jointly test the location and scale parameters, and this test statistic has been discussed by many authors over the years. Since two-sample nonparametric testing plays an important role in biometry, the Cucconi test statistic is generalized to the location, scale, and location–scale parameters in two-sample problem. The limiting distribution of the suggested test statistic is derived under the hypotheses. Deriving the exact critical value of the test statistic is difficult when the sample sizes are increased. A gamma approximation is used to evaluate the upper tail probability for the proposed test statistic given finite sample sizes. The asymptotic efficiencies of the proposed test statistic are determined for various distributions. The consistency of the original Cucconi test statistic is shown on the specific cases. Finally, the original Cucconi statistic is discussed in the theory of ties.
Measurement of Dynamic Characteristics of an Inducer in Cavitating Conditions
Takuya Ashida,Keita Yamamoto,Koichi Yonezawa,Hironori Horiguchi,Yutaka Kawata,Yoshinobu Tsujimoto 한국유체기계학회 2017 International journal of fluid machinery and syste Vol.10 No.3
In liquid-propellant rockets, POGO instability can occur, in which a fluctuation of propellant supply to the engine, a thrust fluctuation, and a structural vibration are coupled. For the prediction of this instability, it is required to provide dynamic characteristics of the pump represented as the transfer matrix correlating the upstream and downstream pressure and flow rate fluctuations. In the present study, the flow rate fluctuation is evaluated from the fluctuation of pressure difference at the different locations assuming that the fluctuation is caused by the inertia of the flow rate fluctuation. The experiments were performed in some flow conditions, and it was shown that the tendencies of dynamic characteristics are related to excitation frequencies, cavitation numbers and flow rate coefficients.
α-Amino Acid Pendant Polymers as Endosomal pH-Responsive Gene Carriers
Takuya Wada,Atsushi Maruyama,Arihiro Kano,Naohiko Shimada 한국고분자학회 2012 Macromolecular Research Vol.20 No.3
In order to prepare gene carriers responsive to an endosomal pH, amino groups of linear poly(allylamine)(PAA) or poly(L-lysine) (PLL) were coupled with a-carboxyl groups of α-amino acids (Gly, His, Lys, Arg, and Orn). Acid-base titration indicated that Lys-, Arg-, and Orn-pendant polymers had both strongly basic groups and endosomal pH-responsive α-amino groups. These polymers, like PAA and PLL, formed stable complexes with DNA. Lys-,Arg-, and Orn-pendant polymers were effective transfection reagents independent of the backbone polymers. The pH-responsive α-amino groups enhanced transfection activity as shown by the observation that acetylation of the α-amino group resulted in a considerable loss in transfection activity. These results strongly suggested a lysosomotropic activity of the α-amino groups. Among the α-amino acid-pendant polymers tested, the Orn-pendant polymer exhibited the highest transfection activity/toxicity index. Since PLL with α-amino acid-pendants is composed of naturally occurring amino acids, it is expected to be biodegradable, and these reagents have promise as gene carriers.
Takuya IMAMURA 한국수정란이식학회 2018 한국수정란이식학회 학술대회 Vol.2018 No.11
Recent transcriptome analyses have shown that long non-coding RNAs (ncRNAs) play prevalent roles in transcriptional regulation. We have reported that promoter-associated ncRNAs (pancRNAs) activate the partner gene expression via local epigenetic changes. Here, we identify thousands of genes under the pancRNA-mediated transcriptional regulation in five mammalian species in common. In the mouse, 1) pancRNA-partnered genes show tissue-specific expression pattern, 2) expression of pancRNAs significantly enriched H3K4me3 and H3K27ac marks towards the partner gene expression, 3) H3K4me1 marks the pancRNA-partnered genes regardless of their expression level, and 4) C- or G-skewed motifs were exclusively overrepresented between -200 and -1 bp relative to the transcription start sites of pancRNA-partnered genes. More importantly, the comparative transcriptome analysis among five different mammalian species using a total of 25 counterpart tissues showed that overall pancRNA expression profile exhibited extremely high species-specificity compared to that of mRNA, suggesting that a significant number of pancRNAs contributed to the enhancement of a set of partner genes' expression in a sequence-specific manner. We conclude that the gain and/or loss of gene-activation-associated pancRNA repertories, caused by formation or disorganization of the genomic GC-skewed structure, finely shapes tissue-specific pattern of gene expression according to a given species.
Takuya Honda,Nobutomo Matsunaga,Hiroshi Okajima 제어로봇시스템학회 2019 제어로봇시스템학회 국제학술대회 논문집 Vol.2019 No.10
The modeling of driving behaviors is important to analyze and design comfortable functions for the driving systems. The estimation method of the non-linear steering model using the eye tracking information was studied using the heuristic search algorithm. However, the model was limited to gaze and the inattentive driving was not modeled. It is considered that the steering model is consists of a hybrid steering model that switches the controllers according to the eye tracking information is classified in the effective/peripheral viewing field. In this paper, an estimation method of the hybrid system focusing on the effective visual field during driving is proposed. The hybrid model is constructed by steering model depending on the gazing distance and simple on-off controller. This estimation algorithm consists of 2-steps; clustering which classifies data by k-means method and the estimation of the parameters by Particle Swarm Optimization. The experiment with the long driving course consisting of five-curves and straight lines is demonstrated by HONDA driving simulator.