43,165 research outputs found

    Miao-Yao

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    Examination of the Maio-Yao language familyEthnic groups of mainland Southeast Asia, Frank M. LeBar, Gerald C. Hickey and John K. Musgrave. New Haven, Human Relations Area Files Press, 1964, 63-81

    Notes Regarding the Customs of Marriage of the Yao Tribe

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    Author was member of Yao (Mien) ethnic group and wrote this paper in Lao script. Undated

    The Yao People

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    Article describing the life and cultural customs of the Yao, an ethnic minority in Laos, including their working habits, food, housing, and religious ceremonies.Yananda, Nan Chan Sungsi, Luang Nonwakorn and E.G. Sebastian. 1925. "The Yao: a Paper Written in Reply To the Questionnaire of the Siam Society." In Journal of the Siam Society, 19 , no. 2: 82-9

    Myth and History of the Yao People

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    Article on the Yao myth of the creation of the world.The collection of notes was compiled based upon conversations with Yao (Mien) elders, who often referred to their almanacs written in Chinese. Compilation of notes was done in 197

    Cyclicity of the Limit Periodic Sets for a Singularly Perturbed Leslie-Gower Predator-Prey Model with Prey Harvesting

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    In this paper, we study the Leslie–Gower predator–prey model with Michaelis–Menten type prey harvesting. Our main focus is on the cyclicity of diverse limit periodic sets, including a generic contact point, canard slow–fast cycles, transitory canards, slow–fast cycles with two canard mechanisms, singular slow–fast cycle, etc. We develop new techniques for finding the maximum number of limit cycles produced by slow–fast cycles containing both the generic and degenerate contact point away from the origin (such slow–fast cycles are the transitory canards and cycles with two canard mechanisms). It can be applied not only to the Leslie– Gower predator–prey model, but more general systems as well. The main tool is geometric singular perturbation theory including cylindrical blow-up and the notion of slow divergence integral. We also study dynamics near the origin using non-standard techniques (constructing generalized normal sectors). The uniqueness and stability of a relaxation oscillation is shown using the notion of entry–exit function. Some interesting dynamical phenomena, such as relaxation oscillation and canard explosion, are simulated to illustrate the theoretical results.Acknowledgements The author Jinhui Yao thanks Prof. Guihua Li for her many helpful comments on this work, and thanks Gang Guo for his simulations in Sect. 6. The author Jinhui Yao would also like to thank Prof. Jicai Huang for his constructive comments

    The Yao People in Thailand

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    An article on the Yao people of Northern Laos and other minority groups.UNESCO Fellow. Chiengrai, Thailand, 1964 December 2

    Longiclavula Yao, Cai & Ren

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    Genus Longiclavula Yao, Cai & Ren, gen. nov. Type species: Longiclavula calvata Yao, Cai & Ren, sp. nov. Diagnosis: Body moderately sized, elongate, general body plan resembling alydids’, dorsal surface smooth, impunctate. Head width and length subequal, slightly shorter than pronotum, apex surpassing first segment of antenna; antennae 4 ­segmented, longer than half of body, first segment short and thick, second, third, and fourth segments slender, second segment longest, fourth shorter than third segment; eyes moderately large, round and prominent, distance between two eyes wider than diamete of an eye. Pronotum trapezoidal, slightly transverse, with collar; femur lacking spine; hemelytron macropterous, long and narrow, apical margin rounded, nearly reaching to tip of abdomen, with distinct embolium, corium elongated on costal margin, with only one wavy longitudinal vein; clavus tapering, without carina and vein; membrane with numerous veins. Abdomen oval, all sutures of abdominal straight, third to fifth sterna subequal in width, distinctly wider than other sterna. Distribution: China. Etymology: The name is a combination of the Latin longus (‘long’) and clavula (“clavus”), alludes to its very long clavus and lack of a claval commissure. The gender is feminine. Remarks: This new genus can be placed next to Miracorizus as they are similar in the following characters: antenna long and slender, the first segment shortest, not extending beyond head apex, the second segment longest, fourth segment shorter than third segment; legs without spine; hemelytron macropterous, costal margin of corium elongated, clavus tapering, longer than lateral side of scutellum, without claval commissure. But Longiclavula can be easily distinguished from Mircorizus by dorsal surface smooth (vs. densely punctate), length of body about 4 times of the width (vs. about 3 times), corium with only M and without medial fracture (vs. without M and medial fracture), clavus without veinlike carina and vein (vs. with a veinlike carina and a vein arising at its basal point). Longiclavula is also similar to Monstrocoreus Popov, 1968 in body relatively elongated, clavus tapering, only one vein on corium; but the new genus can be distinguished from the latter by head over 0.5 times as wide as base of pronotum (vs. less than 0.5 times as wide as base of pronotum); antenna relatively shorter, slightly longer than half of body (vs. subequal to body); M crooked (vs. M nearly straightly); third to fifth abdominal sterna subequal in width (vs. third to sixth subequal in width).Published as part of Yao, Yunzhi, Cai, Wanzhi & Ren, Dong, 2006, The first discovery of fossil rhopalids (Heteroptera: Coreoidea) from Middle Jurassic of Inner Mongolia, China, pp. 57-68 in Zootaxa 1269 on pages 63-64, DOI: 10.5281/zenodo.17321

    Belisana tadetuensis Yao & Li, 2013, sp. nov.

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    Belisana tadetuensis sp. nov. Figs 19 –21, 41 Type material. Holotype: Male (IZCAS), underside of leaves, Tad Etu [15 ° 11.526 ′N, 106 °06.209′E, alt. 930 m], Champasak, Laos, 17 November 2012, leg. Z. Yao (Yao-LA 012–020). Etymology. The specific name refers to the type locality; adjective. Diagnosis. The species can be easily distinguished from all known congeners by different shape of distal apophyses of male chelicerae (Figs 20 B and 21 C) and different shape of distal sclerites of procursus (Figs 19 A, C and 21 A). Description. Male (holotype): Total length 1.36 (1.45 with clypeus), prosoma 0.53 long, 0.56 wide, opisthosoma 0.83 long, 0.49 wide. Legs I and IV lost, leg II: 7.36 (2.01 + 0.25 + 1.80 + 2.50 + 0.80), leg III: 4.86 (1.40 + 0.21 + 1.20 + 1.55 + 0.50). Habitus as in Figs 20 C–E. Dorsal shield of prosoma and sternum whitish, without marks. Legs II and III yellowish, but dark brown on patellae and tibia-metatarsus joints, without darker rings. Opisthosoma whitish, without spots. Distance PME-PME 0.13, diameter PME 0.06, distance PME-ALE 0.01, AME absent. Ocular area not elevated. Thoracic furrow absent. Sternum about as wide as long (0.40). Chelicerae as in Figs 20 B and 21 C, with a pair of thumb-shaped apophyses proximally and a pair of long, curved apophyses distally (distance between tips: 0.09). Pedipalpi as in Figs 19 A–B and 21 A–B; trochanter with a short retrolatero-ventral apophysis; femur with a ventral apophysis; procursus simple proximally but complex distally, with a membranous flap retrolaterally; bulb with a hooked apophysis and a simple embolus. Legs II and III with short vertical hairs on metatarsi, without spines and curved hairs. Variation: Unknown. Female: Unknown. Distribution. Known only from the type locality (Fig. 41).Published as part of Yao, Zhiyuan & Li, Shuqiang, 2013, New and little known pholcid spiders (Araneae: Pholcidae) from Laos, pp. 1-51 in Zootaxa 3709 (1) on pages 20-27, DOI: 10.11646/zootaxa.3709.1.1, http://zenodo.org/record/24883
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