12,179 research outputs found
I remember Ikebana
No full textIn this "I remember" memoir, Mariko Ono describes her career in Ikebana, Japanese flower arrangement. Mrs. Ono participates in annual flower shows, conducts classes at various places, including museums and schools, and has been in charge of the Ikebana exhibit at the annual Chow Mein dinners of the Seabrook Chapter of the Japanese American Citizens League. The Seabrook Educational and Cultural Center has been soliciting current and past residents of Seabrook Farms for an "I remember" project. Residents are asked to create narratives regarding their experiences at Seabrook Farms. These memories help preserve the history and multi-cultural heritage of Seabrook Farms
On a disipative perturbation of the Benjamin-Ono equation
No full textEn este trabajo tratamos con el problema de Cauchy asociado a una perturbación de tipo disipativo de la ecuación de Benjamin-Ono. Más precisamente, estudiamos propiedades de las soluciones reales de tales como el buen planteamiento local y global en los espacios de Sobolev H^s (R) y en los espacios de Sobolev con pesos [Fórmula] (Texto tomado de la fuente).In this work, we treat with the Cauchy problem associated with the dissipative perturbation of the Benjamin-Ono equation. More precisely, we establish local and global well-posedness in the non periodics Sobolev spaces H^s (R). Also, we present similar results in the weighted Sobolev spaces [Formula].Maestrí
On the Cauchy problem of the dispersion generalized Benjamin-Ono equation
No full textSe presenta la prueba del buen planteamiento local para la ecuación de dispersión generalizada de Benjamin-Ono en los espacios Hs(R) para s(9-3a)/8 usando el método de energía, mostrando en detalle el proceso de Bona y Smith necesario para la prueba de persistencia en Hs(R) (Texto tomado de la fuente).We prove that the dispersion generalized Benjamin-Ono equation is locally well-posed in Hs (R) for s(9-3a)/8 using the energy method, showing in detail the process of Bona and Smith to test persistence in Hs(R).Maestrí
Clubiona bachmaensis Ono, 2009, sp. nov.
No full textClubiona bachmaensis sp. nov. (Figs. 1-5) Diagnosis. This new spider is very unique in having wide head, long opisthosoma and long legs without special hair tuft on tarsus of leg II, especially in the structure of male palpal organ. The tibia of male palp is long and simple with a retrolateral apophysis digitiform, the cymbium is relatively long and the tegulum is also long and simple with a short and spiniform embolus and membranous conductor. This structure closely allied to that in the species of the genus Pteroneta established by Deeleman-Reinhold (2001) on the basis of some species recorded from the Ryukyu Islands, Japan, Sulawesi and Lesser Sunda Islands, Indonesia, Borneo, Malaysia and Brunei, and Singapore. However, these Pteroneta species have somewhat small and short body, short legs, robust chelicerae with developed teeth, and special hair tuft on tarsus of leg II, all of which are different in the new spider. Therefore, the present author put it in the genus Clubiona in a wide sense. The general appearance of the new spider resembles species of Clubiona hystrix group defined by Deeleman-Reinhold (2001). Type specimen. Holotype: male from Bach Ma National Park, 1225 m in elevation, Thua Thien Hue Province, Central Vietnam, 7-VI- 2002, by sweeping method, H. Ono leg. (NSMT Ar 8352). Description (holotype). Measurement: Body length 5.45 mm; prosoma length 2.21 mm, width 1.48 mm; opisthosoma length 3.25 mm, width 1.03 mm; lengths of legs [total length (femur+ patella +tibia +metatarsus +tarsus)]: I 7.73 mm (2.06 + 0.75 + 2.48 + 1.69 + 0.75), II 7.62mm (2.06 + 0.79 + 2.43 + 1.63 + 0.71), m 5.51 mm (1.54 + 0.56 + 1.46 + 1.39 + 0.56), IV 8.72mm (2.34 + 0.79 + 2.25 + 2.63 + 0.71). Prosoma (Fig. 1): Carapace longer than wide (length/width 1.49), head wide and three-fifth the width of carapace, median furrow long. Eyes: the anterior eye row slightly recurved and the posterior row straight in dorsal view, all eyes almost same in size, lateral eyes slightly larger than the median eyes, AME-AME=AME-ALE, PME PME>PME-PLE (2:1), clypeus narrow and same as the anterior width of median ocular area, median ocular area wider than long (length/width 0.64), wider behind than in front (anterior width/posterior width 0.30). Labium much longer than wide (length/width 1.50), sternum longer than wide (length/width 1.14). Chelicera furnished with one large and two smaller teeth on promargin of fang furrow, and three teeth on retromargin (Fig. 2). Legs: Spiniformation: Femora I-IV dorsally 0-1-1-1, prolaterally I-II 0-0-1-1, III-IV 0-0- 1; patellae I-IV dorsally 1-0-1 (apical), III-IV retrolaterally 1; tibiae I-II dorsally 1-0-0-0, ventrally 2-0-2, III-IV dorsally 1-0-1, prolaterally 1-1, retrolaterally 1-0-1, ventrally 1-0-1-0; metatarsi I-II none, III-IV prolaterally 1-1-1 or 1-1-1-1, retrolaterally 1-0-1 (apical) (III) or 1- 1-2 (apical) (IV), ventrally 2-0-1 (apical)(III) or 2-0-1-2 (apical)(IV). Leg formula: IV-I-II-III. Male palp (Figs. 3-5): Slender and simple; retrolateral apophysis of tibia digitiform; embolus spiniform and short, with indistinct membranous conductor. Opisthosoma (Fig. 1): Cylindrical, relatively long (length/width 3.15), with some pairs of long hairs. Coloration and markings: Carapace lemon yellow, chelicerae, maxillae and labium light yellowish brown, sternum white, palps and legs yellowish white. Opisthosoma yellowish white without markings dorsally, pale yellowish white ventrally. Distribution. Central Vietnam (at present known only from the type locality). Etymology. The name of the new species is derived from the type locality. Remark. Female unknown.Published as part of Ono, Hirotsugu, 2009, Three New Spiders of the Families Clubionidae, Liocranidae and Gnaphosidae (Arachnida, Araneae) from Vietnam, pp. 1-8 in Bulletin of the National Museum of Natural Sciences (A) (A) 35 (1) on page 2, DOI: 10.5281/zenodo.58404
Rotundicephala koheii Tasaku, Ono & Maruyama 2023, sp. n.
No full text<i>Rotundicephala koheii</i> Tasaku, Ono & Maruyama, sp. n. <p>[Japanese name: Sawada-umi-hanekakushi]</p> <p>(Figs. 1C; 2G; 14D; 15E, F & I; 16; 25A & B)</p> <p> <b>Type material.</b> <b>Holotype.</b> Male, “Kanaya, Futtsu-shi, / Chiba-ken / 9. IV. 2007 / Hiroki ONO leg.” (Fig. 14D) (KUM). <b>Paratypes. Japan: Honshû: Chiba-ken:</b> 1 male, 1 female, 23 unsexed, same data as holotype, 9. IV. 2007, H. Ono (KUM); 3 unsexed, Tateyama-shi, Sunosaki, Sunosaki-kaigan, 15. VI. 2007, H. Ono (KUM); 1 unsexed, ditto, 15. IV. 2008, H. Ono (KUM); 1 unsexed, ditto, 12. II. 2009, H. Ono (KUM); 2 unsexed, Shirahamamachi, Nemoto, 1. IV. 2005, H. Ono (cHO); 1 unsexed, ditto, 26. III. 2007, H. Ono (cHO); 1 unsexed, ditto, 18. IV. 2008, H. Ono (cHO); <b>Tôkyô-to:</b> 1 male, Izu-ôshima, Okada, Noda-hama, 15. VII. 2022, Y. Tasaku (cYT); <b>Kanagawa-ken:</b> 1 male, 23 unsexed, Manazuru-machi, Manazuru-misaki, 15. IV. 2003, M. Maruyama (KUM); 5 unsexed, Yokosuka-shi, Wada-naga-hama (Nahama), 24. III. 2007, I. Kawashima (KUM); 1 unsexed, ditto, 1. IV. 2007, I. Kawashima (KUM); 1 male, 5 unsexed, ditto, 20. IV. 2007, M. Asano (KUM); 1 unsexed (abdomen lost), Manazuru Pen. Banbaura-kaigan, 5. V. 2002, S. Arai (KUM); 1 male, Yokosuka-shi, Nagai, Arasaki-kôen, 24. IX. 2021, K. Chiyoda (cYT); <b>Shizuoka-ken:</b> 1 unsexed, Shimoda-shi, Taraimisaki, 21. IV. 2003, M. Moriguchi (KUM); 2 unsexed, Shimoda-shi, Tsumeki-zaki, 21. VI. 2003, M. Maruyama (KUM).</p> <p> <b>Diagnosis.</b> This species similar to <i>R</i>. <i>pacifica</i> <b>comb. n.</b> and previously confused (e.g., Sawada, 1971;Ahn, 1996) (we call them as the <i>R</i>. <i>pacifica</i> species-complex) but, can be distinguished by the combination of the following characteristics: head and pronotum slightly convex (Fig. 14D); segments IV–IX of antennae as long as wide (Fig. 15I). Also, this species can be easily distinguished from <i>R</i>. <i>koreana</i> <b>comb. n.</b> by the short antennae not reaching elytra.</p> <p> <b>Description.</b> Body small, robust, shining (Fig. 14D). Ground color reddish blown, abdominal segments VI–VII usually almost black, legs and month parts slightly paler.</p> <p>Head slightly convex, almost circular, as long as wide (MHL/MHW = 0.95) (Fig. 1C); eyes small; antennae almost as long as head and pronotum combined, segments IV–X as long as wide, segment XI oval and longer than X (Fig. 15I). Labrum transverse, anterior margin rounded, with about 20 setae; epipharynx with 6 lateral setae (Fig. 16A). Mandibles almost symmetric, right median tooth larger than left one (Fig. 16E). Mentum almost trapeziform, anterior margin deeply emarginated with about 15 setae (Fig. 16B). Pronotum convex, as long as wide. Tarsal formula 3-3-4. Abdomen oblong oval.</p> <p>Male: apical lobe of median lobe bent almost at right angle (Fig. 15E).</p> <p>Female: spermatheca short, coiled one time at base (Fig. 15F).</p> <p> <b>Measurements.</b> (N = 20): BL, 1.87–2.63 mm; FBL, 0.82–1.01 mm; HW, 0.34–0.42 mm; PL, 0.37–0.43 mm; PW, 0.34–0.40 mm; EW, 0.34–0.42 mm.</p> <p> <b>Etymology.</b> This species is named after Dr. Kohei Sawada, who contributed greatly to the elucidation of the Japanese coastal Staphylinidae fauna.</p> <p> <b>Habitat.</b> This species is found from the crevices of rock and around the holdfast of seeweeds (e.g., <i>Monostroma nitidum</i> Wittrock) on the intertidal zones (Fig. 25B).</p> <p> <b>Distribution.</b> Japan: central Honshû (Fig. 25A).</p>Published as part of <i>Tasaku, Yuto, Ono, Hiroki & Maruyama, Munetoshi, 2023, Review of the intertidal rove beetle tribe Liparocephalini Fenyes (Coleoptera, Staphylinidae, Aleocharinae) from Japan, pp. 251-296 in Zootaxa 5383 (3)</i> on page 274, DOI: 10.11646/zootaxa.5383.3.1, <a href="http://zenodo.org/record/10361564">http://zenodo.org/record/10361564</a>
Sobre una versión bidimensional de la ecuación Benjamin-Ono generalizada
No full textEn este trabajo se estudia el problema de valor inicial asociado a la ecuación bidimensional de tipo Benjamin-Ono [Formula] donde H es la Transformada de Hilbert en la variable espacial x, es una constante positiva, [Formula] es el operador de Laplace. Se presentan resultados de buen planteamiento local y global en ciertos espacios de Sobolev. Además, se estudian propiedades de decaída para las soluciones reales del problema (Texto tomado de la fuente).In this work, we study the initial value problem associated to the bidimensional equation of Benjamin-Ono type [Formula] where H is the Hilbert Transform in the space variable x, is a positive constant, [Formula] and is the Laplace operator. We present some results about local and global well-posedness on certain Sobolev spaces. Additionally, we study decay properties of real solutions to the problem.Doctorad
Sinanapis thaleri Ono, 2009, sp. nov.
No full textSinanapis thaleri sp. nov. (Figs. 1 - 14) Diagnosis: This new species is first assumed as a member of the genus Textricella Hickman, 1945, mainly by the presence of a modified patella of the male palp, and resembles T. parva Hickman, 1945 from Tasmania and T. complexa Forster, 1959 from Australia. These species have a complicated structure of the male palpal patella with a grater-like apophysis with many minute teeth. However, this new species can be easily distinguished from these by the simple and filiform embolus (Figs. 10 - 11), the eye-arrangement (Fig. 1) and the shape of the chelicera (Figs. 3 - 5). The new species is more closely related to Sinanapis crassitarsus recently described by Wunderlich & Song (1995) from Southwest China, but differs from the latter in the details. Other than genital features, the new spider resembles the Chinese species by the arrangement of the eyes in three groups, the condition of the chelicera with large teeth and the presence of a distinct posterior plate of the opisthosoma. Type specimen: Holotype: male, from Mt. Lang Biang, 1900 m alt. near peak, Da Lat, Lam Dong Province, Vietnam, 2 - VI- 2002, S. Nomura leg. (NSMT-Ar 5960). Measurement: Body length 1.69 mm; prosoma length 0.79 mm, width 0.62 mm, height 0.71 mm; opisthosoma length 0.85 mm, width 0. 85 mm, height 0.96 mm; lengths of legs [total length (femur + patella + tibia + metatarsus + tarsus)]: I 2.71 mm (0.86 + 0.31 + 0.72 + 0. 28 + 0.54), II 2.13 mm (0.67 + 0.26 + 0.50 + 0. 25 + 0.45), III 1.50 mm (0.44 + 0.18 + 0.31 + 0.20 + 0.37), IV 1.86 mm (0.59 + 0.20 + 0.43 + 0.24 + 0.40). Prosoma (Figs. 1 - 6): Carapace longer than wide (length / width 1.27), very high (height / width 1.15), highest at the ocular area, without setae. Median furrow absent, surface of carapace strongly sclerotized with reticulation forming radial lines, six teeth, 1-1-2- 2 in order, present in the cephalic part behind the eyes, base of pedicel forming a collar. Eyes set in three groups (Fig. 1), six in number, AME lacking, the posterior eye-row re-curved in dorsal view. Both lateral eyes close to each other, all eyes similar in size, but ALE seems to be slightly larger than the others, ALE-ALE sub-equal to their diameter, longer than PME-PLE, clypeus wide (Figs. 2 - 3), much longer than ALE-ALE (15: 4). Chelicerae with three large teeth on the retro-margin of the fang furrow, the distal two teeth on a common protuberance (Figs. 4 - 5), labium fused with anterior margin of sternum, wider than long, maxillae distally wide and obtuse, sternum strongly sclerotized and grained, longer than wide (8: 6) (Fig. 6). Legs: patellae of legs III–IV with a long, apico-dorsal spine, respectively; tibiae III–IV dorsally with a long spine; metatarsus shorter than patella in legs I–II; metatarsus and tarsus of leg I with several ventral, conical spines (Fig. 7); tarsal claws of the legs without distinct teeth. Leg formula: I-II-IV-III. Male palp (Figs. 10 - 14): Femur simple with a few long hairs, without any apophysis, distal margin slightly sclerotized; patella extremely modified, with a large, dorsal apophysis and a complicated process (Fig. 13) and a grater-like apophysis with many teeth on dorsal surface (Fig. 14); tibia not clearly recognizable. Cymbium short and simple, palpal organ fitted in the cymbium, conductor absent, embolus distally filiform (Figs. 10 - 11). Opisthosoma (Figs. 1 - 2, 8 - 9): as long as wide, very high, with a firm collar, the posterior part covered by a large plate rounded and sclerotized (Fig. 8), the surface of the plate relatively smooth and transparent. Anterior spinnerets and posterior lateral spinnerets thick and conical, posterior median spinnerets small but visible, colulus present but indistinct (Fig. 9). Venter of opisthosoma very narrow, cover of booklung distinct, but booklung replaced by trachea and without lung slit, posterior trachea seems to be lacking. Coloration and markings (Figs. 1 - 2, 8): Carapace and chelicerae dark reddish brown, shiny, maxillae and labium reddish brown, sternum reddish brown with black reticulum, femur of palp yellow, palpal organ reddish brown, femora I and II reddish brown, other segments of legs yellowish brown. Opisthosoma dorsally reddish brown, its posterior plate amber with black marking (Fig. 8). Distribution: Vietnam (at present known only from the type locality). Etymology: The specific name is dedicated to the late Dr. Konrad Thaler in memory of his contribution to the study of various spiders mainly from the European Alps. Remarks: The position of the genus Textricella in the phylogeny of Araneoidea is not clear. Although Forster & Platnick (1981) at first used Textricellidae established by Hickman (1945) with Textricella as the type genus, they regarded the small family as a junior synonym of Micropholcommatidae Hickman, 1943, after a few years (Platnick & Forster 1986). The family Micropholcommatidae is characterized by the presence of a cheliceral gland mound and the condition of booklungs and tracheae, and the modified shape of the male palpal patellae. That included several genera known only from the Australian Region and South America, but spiders of the group should occur also in Asia as evidenced by the species of Sinanapis and Enielkenie acaroides Ono, 2006, recently recorded from Taiwan (Ono, Chang & Tso 2006). The present author, however, treats the family Anapidae Simon, 1895, in a broadest sense including micropholcommatids, following Schütt (2003) and Wunderlich (2004), until more information about these spiders, especially those from Asia, will emerge.Published as part of Ono, H., 2009, A new species of the genus Sinanapis (Araneae: Anapidae) from Lam Dong province, southern Vietnam., pp. 1201-1208 in Contrib. nat. Hist. 12 on pages 1022-102
El buen planteamiento local de la ecuación Benjamin -ono-Burguers
No full textSpa: Resumen: En esta charla pensamos mostrar el buen planteamineto local de la ecuación Benajmin-Ono-Burgers, para ello utilizaremos las propiedades del semigrupo e (ν∂2 x+ρH∂ 2 x)t . La importancia de esta ecuación radica en que ella modela el comportamiento de fluidos ideales (particularmente el estado plasma de la materia, ver [2]), el trabajo tiene como motivación las conclusiones dadas por Daniel B. Dix (ver [1]). Palabras clave: Ecuación Benjamín-Ono-Burgers, Problema de Cauchy, Buen planteamiento Local, Transformada de Hilbert, Espacios de Sobolev
Neophysopella tropicalis Y. Ono, S. Chatasiri, Pota & Okane
No full textNeophysopella tropicalis Y. Ono, S. Chatasiri, Pota & Okane, in Ono et al., Mycol. Progr. 19: 914 (2020) Figure 4. Uredinia hypophyllous, erumpent, individual or in groups, yellow-orange, associated with angular, necrotic spots on the upper side of the leaves, urediniospores surrounded by paraphyses. Urediniospores ellipsoidal to broadly ellipsoidal, sometimes globular, (18–)19–23(–26) × 14–17(–20) µm (n = 30), densely and finely echinulate, spines approx. 1 µm high, pale yellow to hyaline, wall 1–2 µm thick, germ pores not observed. Paraphyses cylindrical, straight or sometimes curved, 24–60 × 8–16 µm (n = 15), wall light brown, 2–4 µm thick, sometimes thicker at the apex, smooth. Telia not observed. A 28S rDNA sequence obtained from the specimen from Benin presents 99% (896/901) sequence identity with previously published sequences of N. tropicalis (e.g. LC534274, Ono et al. 2020). Specimen examined: — Uredinia on Vitis sp. cult.: BENIN. Borgou: Parakou, Atagara, Songhaï center, elev. 372 m, 9°41’ N, 2°69’ E, 2 August 2017, M. Piepenbring and participants of Summer School 2017, MP5348 (UNIPAR), GenBank Acc. no. LSU: OL437024 . Host and distribution in Benin: —Uredinia on Vitis sp. cult. (Vitaceae), Central Benin. Host species:—Primary host species: cultivars derived from Vitis vinifera L. and V. labrusca L.; Vitaceae. Secondary host species: not known (Ono et al. 2020). Distribution: —Africa [Benin (this study)], Asia, Oceania, Central America, North America, Southern America (Ono et al. 2020). Comments: — N. tropicalis is reported here for the first time for Benin and for the first time for Africa. Characteristics of the specimens from Benin were compared to those described for N. meliosmae-myrianthae (Henn. & Shirai) Jing X. Ji & Kakish. (Hennen et al. 2005; Ono et al. 2012), N. montana (Y. Ono & Chatasiri) Jing X. Ji & Kakish. (Ono et al. 2012), and N. tropicalis (Ono et al. 2020) from other countries. According to Ono et al. (2020), the longest paraphyses of N. tropicalis are shorter (23–67 µm) than those of N. meliosmae-myrianthae (19–79 µm) and N. montana (22–80 μm), and the walls of the paraphyses are only up to 4 µm thick in N. tropicalis in contrast to values of 5 µm and higher in the other two species. These characteristics indicate that the specimen found in Benin represents N. tropicalis. They are, however, rather difficult to assess.Published as part of Tabe, Affoussatou, Aime, M. Catherine, Yorou, Nourou Soulemane & Piepenbring, Meike, 2022, New records and data on rust fungi (Pucciniales, Basidiomycota) in Benin, pp. 127-145 in Phytotaxa 548 (2) on pages 132-133, DOI: 10.11646/phytotaxa.548.2.1, http://zenodo.org/record/659759
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