21,218 research outputs found
Replacement Name for the Genus Moorea Ahn (Coleoptera: Staphylinidae)
No full textAhn, K-J. (2006): Replacement Name for the Genus Moorea Ahn (Coleoptera: Staphylinidae). The Coleopterists Bulletin 60 (1): 36-36, DOI: 10.1649/878.1, URL: http://dx.doi.org/10.1649/878.
Figs. 7–11 in Replacement Name for the Genus Moorea Ahn (Coleoptera: Staphylinidae)
No full textFigs. 7–11. Pseudocotalpa sonorica, third-instar larva. 7) Ventral view abdomen seg. X; 8) metathoracic leg; 9) lateral view abdomen; 10) protarsungulus-tibiotarsus; 11) head, frontal view.Published as part of <i>Ahn, K-J., 2006, Replacement Name for the Genus Moorea Ahn (Coleoptera: Staphylinidae), pp. 36-36 in The Coleopterists Bulletin 60 (1)</i> on page 34, DOI: 10.1649/878.1, <a href="http://zenodo.org/record/10106476">http://zenodo.org/record/10106476</a>
Proceedings of ACM Symposium on Access Control Models and Technologies, SACMAT: Foreword
No full textDiaulota submarina Ahn 2023, sp. nov.
No full textDiaulota submarina sp. nov. (Figs. 1–4) Diaulota uenoi: Ahn, 1996: 284; Frank and Ahn, 2011: 26; Ahn et al., 2017: 306; Park and Lee, 2021: 240 [misidentification]. Description. Small, body length 2.5–2.9 mm. Body more or less narrow but robust, long setae densely pubescent (Fig. 1). Body reddish brown with blackish brown abdominal tergites VI–VII. Head slightly deflexed, 1.2 times as long as wide (Fig. 2A), sculpture reticulate, about 3 pairs of long filiform setae present on each side, infraorbital carina present (Fig. 2B). Antennomeres 4–5 more or less subquadrate, 6–10 transverse. Eye small, 0.2 times as long as head (Fig. 2A), minute setae present between facets. Labrum (Fig. 3A) large, semicircular, 12 long and macrosetae and 4–5 short and microsetae present on each side of midline. Mandibles (Fig. 3B) narrow and elongate, more or less symmetrical, small median tooth present. Maxilla (Fig. 3C) with galea and lacinia elongate, almost equal in length; galea corneous, apex and internal surface densely pubescent with long filiform setae; lacinia more or less acute, internal surface with comb of single row of about 8 well separated spines followed by several setae, a distinctive row of several setae present on mesal half of lacinial surface; maxillary palpus with 4 articles, robust, article 3 incrassate distally and longer than article 2, article 4 narrowed distally. Labial palpi (Fig. 3D) with 3 distinct articles, palpomere 1 slightly longer than wide, palpomere 2 narrower than 1 and almost 2.0 times as long as 1, palpomere 3 narrower than 2 and slightly longer than 1; ligula simple and elongate with 2 minute setae; twin pores, median pore, and distal pore indistinctly present; medial setae absent on prementum, real pores and setal pores present, basal pores absent, pseudopores absent in very narrow median area, about 4 pseudopores present on each side; a pair of indistinct comb-like hypoglossae present. Mentum (Fig. 3D) without v setae, anterior margin shallowly emarginate, several setae present, many punctures present. Submentum with numerous punctures and setae. Neck absent. Pronotum 0.9 times as long as wide, narrowest at base and widest near one third, basal margin almost straight but slightly prolonged posteriorly on median region, apical margin slightly prolonged anteriorly; long setae subparallel, uniformly distributed and apical half directed anteriorly, basal half directed posteriorly in a narrow median strip, others curve correspondingly; about 3 pairs of long filiform setae present, 1 on disc, 1 on lateral margin, and 1 on apico-lateral margin. Hypomeron entirely visible in lateral aspect, with longitudinal carina. Scutellum more or less diamond-shaped. Elytron 1.2 times as long as wide; 0.7 times as long as pronotum; long setae uniformly distributed and directed posteriorly; about 2 pairs of long filiform setae present, 1 on disc and 1 on lateral margin. Hind wings absent. Mesocoxal cavities contiguous; mesoventral process short and pointed (Fig. 2C). Metaventrite shorter than width of mesocoxa, expanded apico-basally (Fig. 2C). Metendosternite Y-shaped (Fig. 2C). Tibiae with two thick setae on hind margin. Tarsal formula 4-4-4, tarsus with long setae but spatulate seta absent. Claws narrow, long, sickle-shaped. Abdomen gradually broadening to rounded apex; relatively long numerous setae uniformly distributed, directed posteriorly. Tergites III–VI strongly impressed at base. Sternites not impressed at base. Male sternite VIII (Fig. 4A) prolonged posteriorly as broad triangular projection but female unmodified. Male tergite X slightly truncated at posterior margin (Fig. 4B). Female tergite X rounded at posterior margin (Fig. 4C). Median lobe with complex internal sclerites (Fig. 4D). Paramere (Fig. 4E). Spermatheca (Fig. 4F). Specimens Examined. Holotype: 1♁ (CNUIC), with labels as follows: “ KOREA: Chungnam: Anmyeon Isl., Bangpo Beach, 8 VI 1994, K. J. Ahn, ex rocks in low tide | Holotype Diaulota submarina Ahn, 2023 ”. Paratypes: 7 exx. (4 on slides), same data as holotype; 15 exx., KOREA: Chungnam Prov., Muchangpo, 28 III 1998, K.-J. Ahn, ex inside empty barnacles in low tide. Other specimens: 13 exx. (alcohol collection), Chungnam: Anmyeon Isl., Bangpo Beach, 7 VI 1994, K. J. Ahn, ex rocks in low tide; 10 exx. (alcohol collection, 1 on slide), Jeju Prov., Udomyeon, Yeonpyeong-ri, Udo island, 1 III 2007, KJ Ahn; 1 ex., Gyengnam Prov., Geoje City, Gabae-ri, 1 VII 2000, K.-J. Ahn, H.-J. Kim M.-J. Jeon, ex barnacles. Distribution. Korea (South). Etymology. The adjective submarina refers to the microhabitat of the species. Remarks. There is sexual dimorphism in size (bigger in male) and shape of head (broadening anteriorly in male but more or less parallel in female) in this new species as other Diaulota species (Fig. 1A). This species is similar to D. uenoi and almost indistinguishable by the external morphological characters (see key couplet below). However, it is different from the latter in mouthparts and the external shape and internal structure of the median lobe. Apical process of D. uenoi is broader and more abruptly bent upward (fig. 10L in Sawada, 1971) compared to the new species, narrower and slightly bent upward (Fig. 4D; fig. 40 in Ahn, 1996). Especially, the form of internal sclerites of median lobe are different: apical one larger and polygonal in D. submarina (Fig. 4D; fig. 40 in Ahn, 1996) but smaller and rounded in D. uenoi (fig. 10L in Sawada, 1971). They can be regarded as cryptic species.Published as part of Ahn, Kee-Jeong, 2023, Description of Diaulota submarina sp. nov. (Coleoptera: Staphylinidae: Aleocharinae) on Korean coasts, pp. 141-147 in Zootaxa 5336 (1) on pages 141-142, DOI: 10.11646/zootaxa.5336.1.8, http://zenodo.org/record/826868
Figs. 1–6. Pseudocotalpa sonorica, third instar larva. 1 in Replacement Name for the Genus Moorea Ahn (Coleoptera: Staphylinidae)
No full textFigs. 1–6. Pseudocotalpa sonorica, third instar larva. 1) Epipharynx; 2) labium; 3) mandibles left, right dorsal view, mandibles ventral view left, right; 4) last antennal segment, dorsalview; 5) maxillary stridulatory area; 6) left maxilla, central view.Published as part of <i>Ahn, K-J., 2006, Replacement Name for the Genus Moorea Ahn (Coleoptera: Staphylinidae), pp. 36-36 in The Coleopterists Bulletin 60 (1)</i> on page 33, DOI: 10.1649/878.1, <a href="http://zenodo.org/record/10106476">http://zenodo.org/record/10106476</a>
IGT raw data - Ahn et al. (2014) Frontiers in Psychology
No full text<p>These are trial-by-trial choice data of the Iowa Gambling Task, published in:</p>
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<p>Ahn, W.-Y., Vasilev, G., Lee, S., Busemeyer, J. R., Kruschke, J. K., Bechara A., & Vassileva, J. (2014) Decision-making in stimulant and opiate addicts in protracted abstinence: evidence from computational modeling with pure users. Frontiers in Psychology (Decision Neuroscience).</p>
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<p>Please unzip "rawData.zip" and read "ReadMe.txt" for more details.</p
All data (N=54) and R codes used in Ahn, W.-Y.∗, Ramesh∗, D., Moeller, F. G., & Vassileva, J., (2016) Frontiers in Psychiatry.
No full textAll data (N=54) and R codes used in: Ahn, W.-Y.∗, Ramesh∗, D., Moeller, F. G., & Vassileva, J. (2016) Utility of machine learning approaches to identify behavioral markers for substance use disorders: Impulsivity dimensions as predictors of current cocaine dependence. Frontiers in Psychiatry. The codes and some tutorials are also available at the first author's (Woo-Young Ahn's) website (http://u.osu.edu/ccsl/codedata/machine-learning/).Unzip the file and read instructions inLASSO_cocaine_frontiers.RLASSO_cocaine_frontiers_multipleTestSets.R</div
Camioleum choi Shin & Ahn, new species
No full textCamioleum choi Shin & Ahn, new species (Figs. 1–7) Type series Holotype, male, labeled as follows: KOREA: Gangwon Prov., Pyeongchanggun, Jinbumyeon, Mt. Odaesan, Sangwonsa, 4 2001, SJ Park, sifting; Holotype, Camioleum choi Shin and Ahn, Desig. K. J. Ahn, 2006. Paratype, 1 male, same data as holotype; 1 female, same data as holotype except for 30 IV– 4 VI 2001, KJ Ahn, SJ Park, MS Kim, MJ Jeon, FIT; 1 female, same data as holotype except for 8–25 V 2004, SJ Park, DH Lee, JS Park, FIT. Description Body length 3.5–3.7 mm (from clypeus to apex of elytra). Body broad, convex. Body glossy, brown, antennomeres 6–11 dark brown, abdomen black. Head more or less pentagonal, about 1.6 times wider than long, depressed above, with scattered distinct punctures. Compound eyes prominent, about 2.3 times longer than tempora, distinct orbital ridge present behind each eye, postocular region arcuate, a pair of distinct ocelli present, distance between them about 2.0 times wider than distance between outside of ocellus and inner margin of eye. Antennae long and filiform, reaching to basal fourth of elytra, incrassate distally, all antennomeres longer than wide, antennomeres 1–5 polished and 6–11 opaque. Antennomere 1 robust, about 2.0 times longer than wide; 2: length to width ratio 2.0, shorter and narrower than 1; 3: slender, slightly dilated apically, 2.5 times longer than wide, longer and narrower than 2; 4–7: more or less same in length and shape as each other, 8–10: slightly decreasing in length, increasing in width. Maxillary palpomere 4 longest and more or less pointed apically. Pronotum surface uneven, convex medially, but depressed along median line and with Vshaped depression from lateral margin to posterior margin; more or less deplanate laterally; widest near middle, posterior and anterior margin more or less same in length, anterior margin broadly emarginated, posterior margin almost straight, each lateral margin round and crenulate, anterior and posterior angles round; single fovea present in middle of each deplanate lateral area, punctures much larger than those on head. Elytra long, covering entire abdomen, oval and convex, lateral margin in anterior margin very slightly crenulate, narrowly deplanate along lateral margin, punctation striate. Legs long and slender. Male. Protibia with a number of short peg setae incurved at apical third, mesotibia with a number of minute spines and short peg setae in apical two thirds on ventral region. Aedeagus as in Figs. 6–7. Median lobe long and divided into three lobes, middle lobe constricted in apical third and more or less pointed, each lateral lobe curved to opposite side. Parameres slender and long, a little longer than median lobe. Female. Protibia straight, without modified peg setae; mesotibia lack modified peg setae. Tergite VIII with prolonged apex (Fig. 3). Sternite VIII with numerous setae (Fig. 4). Genital segment with an internal sclerite (Fig. 5). Distribution Korea. Remarks The new species is similar to C. loripes, but, in addition to some differences in the structure of the aedeagus, can be distinguished by the following characters: the tip of maxillary palpomere 4 of C. loripes is broadly rounded (Watanabe 1990, Fig. 100), while that of C. choi is more or less pointed; pronotum of C. loripes is more strongly narrowed posteriorly than anteriorly (Watanabe 1990, Fig. 98), in contrast to more or less the same length of anterior and posterior margin in C. choi (Fig. 1); C. loripes has arcuate and rectangular posterior angles of pronotum (Watanabe 1990, Fig. 98), but in C. choi the angles are rounded (Fig. 1); the apical margin of male sternite VIII of C. loripes is more or less straight (Smetana 1985, Fig. 1), but that of C. choi is prolonged (Fig. 2); the apical margins of female tergite VIII (Smetana 1985, Fig. 5) and sternite VIII (Smetana 1985, Fig. 4) of C. loripes are emarginated, in contrast, in C. choi they are prolonged (Figs. 3–4); the median lobe of C. loripes is entire (Watanabe 1990, Fig. 106), while it is divided into three lobes (Fig. 6) in C. choi; the parameres of C. loripes are shorter than the median lobe (Watanabe 1990, Fig. 106), in contrast, in C. choi the parameres are longer than the median lobe (Fig. 6).Published as part of Shin, Choru & Ahn, Kee-Jeong, 2006, Camioleum choi, a new species in the omaliine tribe Anthophagini (Coleoptera: Staphylinidae) from Korea, pp. 57-62 in Zootaxa 1227 on pages 58-61, DOI: 10.5281/zenodo.17269
The reflex-free hull
No full textWe propose a hull operator, the reflex-free hull, that allows us to define a 3D analogue to bays in polygons. The reflex-free hull allows a rich set of topological types, yet for polyhedral input with n edges, it remains a polyhedral set with O(n) edges. This is in contrast to other possible hull definitions that give non-planar surfaces and higher combinatorial complexity. The reflex-free hull is related to identifying cavities in computer aided design and manufacturing, but we sketch examples to indicate that computing a reflex-free hull will be a challenging problem.Brain Korea 21 program of MOE (Ahn), RGC CERG HKUST 6074/97E (Cheng) and NSF grants 9988742 and 0076984 (Snoeyink)
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