190,459 research outputs found
Xanthopimpla tricapus Townes & Chiu 1970
No full textXanthopimpla tricapus Townes & Chiu, 1970 Xanthopimpla tricapus Townes & Chiu, 1970. Mem. Amer. Ent. Inst., 14: 260. Xanthopimpla tricapus impressa Townes & Chiu, 1970. Mem. Amer. Ent. Inst., 14: 260. Holotype: ♀, Myanmar: Toungoo, Karenni (ZMHB). Diagnosis. Mesoscutum medially with three separate black spots; area superomedia closed; propodeum without basal transverse carina so that first and second lateral area confluent; ovipositor sheath equal to length of hind tibia. Distribution. Pham & Le (2007) have recently recorded this species from Vietnam on the basis of specimens collected from Pu Mat NP, Nghe An Province (Central Vietnam). Outside of Vietnam, it is known from India, Myanmar, Thailand, Malaysia, Indonesia, and the Philippines (Yu et al. 2005). Remarks. Two subspecies are currently recognised: X. tricapus tricapus from the Philippines and Xanthopimpla tricapus impressa Townes & Chiu from India, Myanmar, Thailand, Vietnam, Malaysia and Indonesia. The latter subspecies differs from the nominate by the presence of a shallow notaulus, small punctures on the mesoscutum and an entirely yellow tergite 6 and probably warrants separate species status, although we have not examined material from the Philippines to confirm this. Material examined. Nghe An, Pu Mat NP: 1♂ (ZFMK), 350 m a.s.l, 26.iv.2006; 1♀ (IEBR), 400−500 m a.s.l, 16.vii.2006, H. X. Le leg.; Vinh Phuc, Phuc Yen, Ngoc Thanh: 2♂ (IEBR), 15.vii.2007; 1♂ (OMNH), same data, T. H. Pham leg.; Dak Lak, Chu Yang Sin NP: 1♀ (RMNH), 750 m a.s.l, 01–10.vi.2007, C. v. Achterberg & R. de Vries leg.; Dong Nai, Cat Tien NP: 1♀ (RMNH), 01–09.x.2005, C. v. Achterberg & R. de Vries leg.; Dong Nai, Vinh Cuu, Phu Ly: 1♀ (IEBR), 02.viii.2008, T. V. Hoang leg.Published as part of Pham, Nhi Thi, Broad, Gavin R., Matsumoto, Rikio & Wägele, Wolfgang J., 2011, 3056, pp. 1-67 in Zootaxa 3056 on page 1
Xanthopimpla trias Townes & Chiu 1970
No full textXanthopimpla trias Townes & Chiu, 1970 Xanthopimpla trias Townes & Chiu, 1970. Mem. Amer. Ent. Inst., 14: 242. Holotype: ♀, India: Mercara, Mysore (GPTA). Diagnosis. Propodeum without carinae, except apical part of lateral longitudinal carina and small stub of lateromedian longitudinal carina; tergites 1, 4, 7 each with black band or sometimes tergites 1 and 3 with two black spots; ovipositor 0.45x hind tibia. Distribution. Townes & Chiu (1970) have previously recorded this species from Dak Lak Province (Central Highlands of Vietnam). Outside Vietnam, this species has been recorded from China, India, Nepal, Thailand and Taiwan (Yu et al. 2005). Material examined. Vinh Phuc, Tam Dao NP: 1♂ (OMNH), 900–1,200 m a.s.l, 08.v.1998; 1♀ (OMNH), same locality, 28.iv.2000, R. Matsumoto leg.; Dak Lak, Chu Yang Sin NP: 1♀ (RMNH), 270 m a.s.l, 01–10.vi.2007, C. v. Achterberg & R. de Vries leg.Published as part of Pham, Nhi Thi, Broad, Gavin R., Matsumoto, Rikio & Wägele, Wolfgang J., 2011, 3056, pp. 1-67 in Zootaxa 3056 on page 4
ENDOHEDRAL AND EXOHEDRAL ELECTRONIC INTERACTIONS BETWEEN METALS AND GIANT FULLERENE CAGES
No full text1. Y. -N. Chiu and B. -C, Wang, J. Mol. Strul. (Theochem), 283, 13 (1994). 2. Y. -N. Chiu. P. Ganelin, X, Jiang and B. -C. Wang, J. Mol. Strut. (Theochem) 312, 215 (1994). 3. Y. -N. Chiu. X. Jiang, P. Ganelin and B. -C. Wang, J. Mol. Strut. (Theochem) 000,000(1995).Author Institution: The Catholic Univ. of America, Washington D. C. 20064.We shell consider special metals with the right number of electrons to stay inside the carbon cages of the right symmetry or 10 replace the carbon on the surface. For fullerene with subgroup of three-fold symmetry and three or six free electrons, we consider etc. For cages with subgroup of "four" -fold and two-fold symmetry we consider etc., some may also have four or eight free radical electrons. The metals with three electrons are , etc., with "four" electrons are etc. These will be compared with metallocenes and
Idempotence of microlocal kernels and -equivariant Chiu-Tamarkin invariant
No full textIn this article, we present some results and constructions about the
Chiu-Tamarkin invariant motivated by the idempotence of microlocal kernels,
including: (1) a natural explanation for the definition of the
-equivariant Chiu-Tamarkin invariant; (2) a graded commutative
product on the non-equivariant Chiu-Tamarkin invariant; and (3) a construction
of the -equivariant Chiu-Tamarkin invariant. As applications, we: (1)
construct a sequence of symplectic capacities and prove that it coincides with the symplectic capacities
we defined using the -equivariant
Chiu-Tamarkin invariant under certain conditions; and (2) prove a Viterbo
isomorphism. In the Appendix, we provide a proof of admissibility for all open
sets in a cotangent bundle under the setup of triangulated categories.Comment: Exposition rewritten. 53 pages. Comments are welcome
Xanthopimpla quatei Townes & Chiu 1970
No full textXanthopimpla quatei Townes & Chiu, 1970 Xanthopimpla quatei Townes & Chiu, 1970. Mem. Amer. Ent. Inst., 14: 150. Holotype: ♀, Vietnam: 30 km north of Pleiku [now in Gia Lai Province], South Vietnam (BPBM). Diagnosis. Lateral and median black marks on mesoscutum joined posteriorly to black mark in front of scutellum; lateral carina of scutellum forming relatively high flange, medially about 0.5x first flagellomere width; metasomal tergites smooth, with sparse punctures; ovipositor sheath 1.25x hind tibia; ovipositor lower valve with three apical ridges. Distribution. Townes & Chiu (1970) described this species on the basis of the female holotype collected from Pleiku (now in Gia Lai Province). Outside Vietnam, X. quatei has been reported from Malaysia (Idris et al. 2003). Material examined. Dak Lak, Chu Yang Sin NP: 1♀ (RMNH), 740 m a.s.l, 01–10.vi.2007, C. v. Achterberg & R. de Vries leg.Published as part of Pham, Nhi Thi, Broad, Gavin R., Matsumoto, Rikio & Wägele, Wolfgang J., 2011, 3056, pp. 1-67 in Zootaxa 3056 on page 3
Capacities from the Chiu-Tamarkin complex
No full textIn this paper, we construct a sequence (c k) k ∈N of symplectic capacities based on the Chiu-Tamarkin complex C Z/ℓ T, a Z/ℓ-equivariant invariant coming from the microlocal theory of sheaves. We compute (c k) k ∈N for convex toric domains, which are the same as the Gutt-Hutchings capacities. Our method also works for the pre-quantized contact manifold T ∗ X × S 1. We define a sequence of “contact capacities” ([c] k) k ∈N on the prequantized contact manifold T ∗ X × S 1, and we compute them for prequantized convex toric domains.</p
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