6,480 research outputs found
R2P or not R2P? More statebuilding, less responsibility
No full textThis article is part of a forum on the report of the United Nations Secretary-General, 'Implementing the Responsibility to Protect', which was released on 12 January 2009. The report was written as a response to 'one of the cardinal challenges of our time, as posed in paragraphs 138 and 139 of the 2005 World Summit Outcome: operationalizing the responsibility to protect'. The forum seeks to provide a range of perspectives on the report. It features contributions from Jennifer Welsh, Hugo Slim, David Chandler and Monica Serrano, and it concludes with a response from Special Advisor to the Secretary-General Edward Luck
Rites of Spring concert flier, Food For Thought, Washington, D.C. - December 15, 1984
No full textPhotocopy of an advertising flier promoting a concert by the Washington, D.C. punk band, Rites Of Spring. The concert occurred on December 15, 1984 at Food For Thought, a restaurant/concert venue in Washington, D.C. The other bands on the bill were the Washington, D.C. punk bands Gray Matter and Grand Mal. The photocopy was made by D.C. artist, author, and musician Sharon Cheslow as part of the research for "Banned in D.C.," a book she co-authored with Cynthia Connolly and Leslie Clague
Notice from Zachariah Chandler to William Gillet Ritch
No full textNotice dated February 28, 1876 from Zachariah Chandler, Washington, D.C., to William Gillet Ritch, Secretary of the Territory of New Mexico, granting Ritch's request for leave of absence for sixty days, asking him to notify same when leaving and returning to New Mexico. HL introduction page overlaid by document. Notice in English, handwritten, 1pp/f
Brachygluta (Brachygluta) shawnee Chandler, sp. n.
No full text9. Brachygluta (Brachygluta) shawnee Chandler, sp. n. (Figs 11, 37 B) Material examined, 9 specimens. HOLOTYPE male: USA: Maryland: Montgomery Co.: // at light/ Plummers Id., 28.V. 14 Md./ R.C. Shannon/ [red label] HOLOTYPE Brachygluta shawnee Chandler // (USNM). PARATYPES, 8, all males: USA: Alabama: Jefferson Co.: Vestavia, VII- 18-1981, T. King, at light (FMNH, 1). Walker Co.: Jasper, Devils Ladder, V- 27-1979, T. King, at light (FMNH, 1). District of Columbia: D.C., ♂, Brend, Horn Coll H 1919 (MCZC, 1); D.C. (CMNH, 1). Georgia: Clarke Co.: Whitehall Forest, 7-14 Aug. 1978, R. Turnbow, bl trap (DSCC, 1). Indiana: Knox Co.: 6-28 - 1946, Plot 10, S.A. Summerland Coll./ LSAM 0 267298 (LSAM, 1). Ohio: Vinton Co.: 72660 Gambill Hollow Rd., Albany, 2.27 km West of Rt. 356, 6.5 km SE Zaleski, 39 15.218 N, 82 19.641 W, 30 -July to 06-August- 2011, K. D. Karns/ flight intercept trap, north facing slope, upland hardwood beech, oak, buckeye (DSCC, 1). Virginia: Henrico Co.: 4 km upstream from Bottoms Bridge, Chickahominy River, VII- 4-1999, I.T. Wilson, UV trap (DSCC, 1). Description. BODY: Length 1.88–2.10 mm; brown to dark brown, elytra orange to red-brown; setae short, decumbent. Head: surface smooth, shining, punctures indistinct; setose are of median vertexal fovea slightly smaller than those of lateral foveae. Antennomeres III–VI longer than wide, VII about as long as wide, VIII-X transverse; VIII two-thirds width of IX (Fig. 11 C). Pronotum: surface smooth, shining, punctures indistinct. Setose area of median antebasal fovea slightly smaller than those of lateral antebasal foveae. Elytra: surface smooth, shining to opaque where faintly microreticulate on much of elytral disc, discal stria extending to about four-fifths of elytral length. Abdomen: surface with small distinct punctures, punctures denser in apical half; tergite 1 with divergent basal striae extending about half length of paratergite, basal striae separated by about two-fifths basal width of tergite 1, setose brush between bases of striae short. MALE: Antennae and trochanters lacking modifications. Metaventrite with semicircular patch of denser setae between bases of metatrochanters present but indistinct. Usually only tergites 1–2 visible in dorsal view (Fig. 11 A), tergite 1 twice length of 2; tergite 1 broadly and shallowly emarginate at apex, with broad hyaline lamina at middle, lamina apex emarginate, setal fringe along tergite apex densest by lamina; tergite 2 with deep narrow impression at base, impression extending to tergite apex in middle third, flanked by prominent rounded ridges, with band of golden setae between bases of ridges and ventral to lamina (Fig. 11 B); in lateral view outline of tergites 1–2 confluent. Abdominal ventrites broadly convex. Metatibiae narrow basally, slightly widening through length to apex, with dense comb of setae on mesal margin in apical fifth where slightly curved medially (Fig. 11 D). Aedeagus 0.30 mm long; with dorsal plate elongate, slightly asymmetrical, with short hook at apex; parameres with three thin setae at posterior margin of preapical constriction, hyaline setae small, flattened, widest at middle and gradually tapering to acute point; internal sac with one large curved spine (Fig. 11 E). FEMALE: unknown. The female is expected to have long basal discal striae on tergite 1. Collecting data. The specimens were either taken by light or ultraviolet light (4), or with a flight intercept trap in an upland deciduous forest (1). Collected from May to August. Distribution (Fig. 37 B). This uncommon species is widely distributed through the eastern United States from Ohio to Maryland and Georgia; it does not occur in the Atlantic coastal marshes. Comments. The relatively simple structure of the male abdominal tergites is shared with B. belfragei, with the disc of tergite 1 lacking dorsally projecting lobes, with a median emargination at the apex, and tergite 2 having a deep basal transverse sulcus. These two may be separated by B. shawnee being more densely punctate and having a more opaque body surface; the presence of a broad hyaline lamina at the posterior margin of the emargination of tergite 1; and tergite two having lateral setose lobes. Brachygluta belfragei has sparse punctures on the abdominal tergites with a more glabrous body surface, the hyaline lamina in the emargination of tergite 1 is narrower, and tergite 2 is smoothly convex and glabrous laterally. Etymology. The name is that given to an American Indian tribe that was active within the range of this species.Published as part of Chandler, Donald S., Sabella, Giorgio & Bückle, Christoph, 2015, A revision of the Nearctic species of Brachygluta Thomson, 1859 (Coleoptera: Staphylinidae: Pselaphinae), pp. 1-91 in Zootaxa 3928 (1) on pages 31-33, DOI: 10.11646/zootaxa.3928.1.1, http://zenodo.org/record/28805
Letter from Zachariah Chandler to William Gillet Ritch
No full textLetter c. August 1876 from Zachariah Chandler, Republican National Committee, Washington, D.C., to William Gillet Ritch, Secretary of New Mexico, regarding the upcoming presidential campaign and asking Ritch for a contribution of money. Letter also signed by Simon Cameron, R.C. McCormick, and J. M. Edmunds, joint authors. Letterhead of Hayes and Wheeler Republican Campaign, 1876 and names of committee members. HL introduction page overlaid by document. Letter in English, handwritten, 1pp/fr
Ion-implanted Nd:YAG planar waveguide laser
No full textThe first operation of a Nd:YAG waveguide laser is reported. Details of the waveguide structure, spectroscopic properties, and laser performance are presented
Low threshold ion-implanted Nd:YAG channel waveguide laser
No full textThe first channel waveguide laser in Nd:YAG showing a threshold reduction of 20 times compared to a planar waveguide is described. With diode pumping this ion-implanted waveguide laser has been operated with absorbed power thresholds as low as ~500µW in good agreement with theoretical expectation. Output slope efficiencies of ~29% have also been demonstrated
Ion implanted quasi-three-level Yb:YAG waveguide lasers
No full textYb:YAG has manv advantages compared to the widely used Nd:YAG system. These include closer pump and laser wavelengths, leading to a more efficient transfer of energy from the pump to laser photons and less thermal loading of the gain medium. Excited state absorption, upconversion, and concentration quenching are also reduced because of the fact that there is only one excited 4f manifold. Efficient, room-temperature operation of a bulk Yb:YAG laser at 1.03 µm has recently been reported showing that the broad absorption bands are well suited to diode pumping
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