172,208 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
Idempotence of microlocal kernels and -equivariant Chiu-Tamarkin invariant
Full text linkIn 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
O. A. C. Review Volume XLVI Issue 5, February 1934
No full textThe focus of this issue is the preparation for College Royal and recognizing its tenth anniversary. This month's agricultural article is a report from the Dominion Parasite Laboratory on the biological control of pests. Other articles provide an account of the activities of a stage manager and the development of the field of home economics at Macdonald College in Quebec. Campus news addresses the success of the 1934 Conversazione, the commemorating of the sixtieth anniversary of the founding of O. A. C., the attendance at the Canadian Author Lecture, and the successful productions of "The Apple Cart" and "Iolanthe". The Macdonald Institute column comments on the Conversat and women's athletics activities in basketball and the rifle club. The Alumni Record supplies alumni updates.EditorialTen Years of the RoyalRamblings on the RoyalBlame it on the stage managerBiological control of insect pests in CanadaNot for girls onlyCollege lifeLiterary sectionO. A. C. sportsfolioAlumni recordMacdonald newsLetters to the editoradvertisin
In-situ measurements of soil water content and suction to assess river embankments stability under transient flow conditions
No full textThe evaluation of river embankments stability is a key aspect in geohazard assessment and un-derestimating their failure risk can often produce unexpected and severe damages. Time-variable soil water content and suction distributions represent an intrinsic characteristic of river embankments, playing a funda-mental role during their stability assessment. To obtain a realistic estimate of these distributions in time and space – as a function of river water levels – a combination of field measurements, laboratory testing and ap-propriate calibrated numerical analyses should be used in a complementary way. For preliminary analyses, however, the river embankments are typically assumed to be under steady state conditions and this assumption provides overconservative results in terms of global safety at most times. Soil suction and water content were monitored at different depths within the embankment at the test site along river Secchia, north of the city of Modena (Italy), in order to study transient flow conditions and use it as input for probabilistic numerical anal-yses of the river embankment stability
O. A. C. Review Volume XXXVI Issue 12, August 1924
No full textThis slim summer issue contains the address given by the agricultural section of the British Association for the Advancement of Science, and a report on the visit of this association to the O. A. C. Other articles include instructions on increasing strawberry production and a biography of the author John Masefield. The editorial comments on Rhodes Scholars. The Alumni column provides an update of alumni activities. This issue does not contain a Macdonald column.JoyPresent-day problems in crop productionAfter the strawberry harvestJohn MasefieldVisit of the Agricultural Section of the British Association for the Advancement of ScienceEditorialCollege lifeAlumniadvertisin
GIS-based Tests for Quality Control of Meteorological Data and Spatial Interpolation of Climate Data_A Case Study in Mountainous Taiwan.
No full textCapacities 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
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
- …
