2,858 research outputs found
A Conversation with Charles V. Hamilton
No full text Charles V. Hamilton is the Wallace Sayre Professor Emeritus of Political Science and Government at Columbia University. He is the author of several important books on the study of race and politics, focusing primarily on the African-American experience. He is the coauthor of Black Power: A Politics of Liberation with the late Stokely Carmichael (Kwame Ture), as well as The Black Preacher in America; Bench and the Ballot: Southern Federal Judges and Black Voters; Adam Clayton Powell, Jr.: The Political Biography of an American Dilemma; and coauthor with Dona Cooper Hamilton of The Dual Agenda: Race and the Social Welfare Policies of Civil Rights Organizations. He was interviewed by Fredrick C. Harris, Dean of Social Science and Professor of Political Science at Columbia University, on July 13, 2017, at the University of Chicago. This is an edited transcript; a video of the entire interview can be viewed below or at http://www.annualreviews.org/r/charlesvhamilton . </jats:p
Zumatrichia hazelae Harris and Armitage 2019, new species
No full textZumatrichia hazelae Harris and Armitage, new species Fig. 25 Diagnosis. Zumatrichia hazelae is placed in the galtena group of Flint (1970) based on the presence of a basodorsal process from the inferior appendages similar to that of Z. kerekeda Olah and Flint and Z. kisgula Olah and Flint. However, unlike these two species, Z. hazelae has the basal portion of the inferior appendage short and ovate, similar to that seen in Z. teribe Harris and Armitage. Male. Length 2.7–2.9 mm. Head without modification, a broken with enlarged scape bearing large circular process, body and unmodified wings brown in alcohol. Abdominal segment VII annular with serrate posteroventral mesal process. Segment VIII in lateral view truncate posteroventrally, tapering dorsally; in dorsal view narrow, emarginated posterolaterally; ventrally with narrow mesal incision on posterior margin. Segment IX generally square in lateral view, narrowing anteriorly, posterior margin with thin lobe, laterally with elongate setal-bearing process; dorsally emarginate anteriorly and posteriorly, posterior margins sclerotized. Segment X rectanguloid in lateral aspect; in dorsal view square, with posterior margin tapered. Inferior appendages with elongate, thin basodorsal process, subapically with setal-bearing dorsal lobe, main body an enlarged lobe, which in ventral view is deeply incised posteriorly with numerous setae on margin. Penile sheath with subapical point in lateral view; phallus with medial ring-like process, apically enlarged and platelike, internally with elongate dorsal spine and numerous anterobasal spines; in dorsal aspect, a pair of deeply divided mesal spines, two pair of posterior spines, one mesal, one lateral. Female. Unknown. Type material. Holotype, male— Panama, Bocas del Toro Province, tributary of Quebrada Rambala, Rambala Jungle Lodge, 3.7 km SSE Rambala, 8.91627°N and 82.15469°W, 134 m, November 29, 2014, E. Carlson. Paratype. ibid., 1 male (SCH). Etymology. Named for the mother of the first author, Hazel I. Harris, in honor of her 90 th birthday.Published as part of Harris, Steven C. & Armitage, Brian J., 2019, The Trichoptera of Panama X. The Quebrada Rambala drainage, with description of 19 new species of microcaddisflies (Trichoptera: Hydroptilidae), pp. 1-54 in Insecta Mundi 707 (707) on page 19, DOI: 10.5281/zenodo.367349
Neotrichia contrerasi Harris and Flint 2016, new species
No full textNeotrichia contrerasi Harris and Flint, new species Fig. 3 Neotrichia contrerasi is another member of the canixa group of Keth et al. (2015) with some similarity to N. tauricornus Malicky in the structure of the subgenital plate and the inferior appendages. It differs from N. tauricornis and other members of the canixa group in the combination of small, widely spaced horns of the tenth tergite, the evenly divided branches of the bracteoles, and the elongate ventral process of the subgenital plate. Male. Length 2.0 – 2.2 mm. 18 antennal segments, body brown in alcohol. Abdominal segment VIII annular. Segment IX incomplete dorsolaterally, posteriorly truncate with setal-bearing lobe on dorsum, anteriorly rounded; in ventral view deeply incised on posterior and anterior margins; dorsally fused with segment X. Tergite X wide, with broad incision posteriorly creating small lateral horns; in lateral view elongate, narrowing posteriorly to acute apex. Subgenital plate in lateral view narrowing distally to elongate process, which extends ventrad to tip of inferior appendages; in ventral view narrow over length, T-shaped apically with pair of elongate mesal setae. Bracteoles bifid, dorsal branch slightly longer than the ventral branch, each with long seta apically. Inferior appendages wide basally, tapering distally, ventral process about half length of appendage; in ventral view nearly extending to tip of subgenital plate, wide basally, tapering distally and curved mesad, mesal processes short and stout bearing apical seta. Phallus tubular, constricted at mid-length and bearing thin paramere encircling shaft, apex divided into pair of elongate processes, which are at an angle to the shaft, ejaculatory duct protruding distally. Type material. Holotype, male - Mexico, Nuevo Leon, Municipio de Santiago, Rio Ramos at Los Adjuntas, 4.5 km southeast Puerto Genovevo, N25 o 18’, W100 o 08’, 12 May 1989, S. Harris and A. Contrera s (NMNH). Paratypes - same as holotype, 4 males (INHS, NMNH), United States, Arizona, Coconino County, West Fork Oak Creek, A79-17, 9 August 1979, M. Sanderson, 1 male (INHS). Etymology. Named for Atilano Contreras-Ramos who collected the species with the senior author and has contributed much to our knowledge of the aquatic insects of Mexico.Published as part of Harris, Steven C. & Oliver S. Flint, Jr., 2016, New species of microcaddisflies (Trichoptera: Hydroptilidae) from the western United States, Canada, Mexico and Belize, pp. 1-22 in Insecta Mundi 2016 (499) on page 3, DOI: 10.5281/zenodo.517072
Neotrichia michaeli Armitage and Harris 2020, new species
No full textNeotrichia michaeli Armitage and Harris, new species Fig. 10 Diagnosis. Neotrichia michaeli is a member of the canixa species group of Keth et al. (2015) based on the apical horns of the tenth tergite and the bifid bracteoles, both characteristic of the group. The new species appears most similar to N. bika Ohah and Johanson, N. kehelia Olah and Johansen, and N. chihuahua Harris and Flint all of which have relatively short apical horns from the tenth tergite. The new species is recognized by the short, subapical spine of the phallus, which is also present in N. bika, and the widening extension of the ejaculatory duct. It differs from these species in the elongate ventral process of the subgenital plate. Description. Length 1.2–1.4 mm, 18 antennal segments, overall color brown (in alcohol). Abdominal segment VIII annular. Male genitalia. Segment IX incomplete dorsolaterally, fused with tergite X dorsally, laterally bearing subapical setal-bearing lobes, anteriorly with medial incision; in ventral view shallowly incised laterally on posterior margin. Tergite X narrow, with pair of short, widely separated, squarish symmetrical, horns distally, subapically with pair of membranous lobes, basally fused with segment IX; in lateral view apical horn thick and hook-like distally. Subgenital plate in lateral view bulbous basally, narrowing distally to setal-bearing lobe, ventrally produced into an elongate tapering process; in ventral view wide basally, truncate distally with a pair of lateral setae, subapically with medial process. Bracteoles bifid, dorsal branch much longer than stub-like lower branch, bearing elongate setae apically. Inferior appendages bifid, outer portion narrow and gradually tapering posteriorly, inner portion thin and short; in ventral view narrow over length, slightly curving on inner margin to apical point, basal mesal processes about ¾ length of outer portion, wide basally, tapering to setal-bearing apex. Phallus tubular in dorsal view, constricted below mid-length and bearing a thin paramere encircling shaft, posterior portion narrow over length, incised subapically and containing an ejaculatory duct, apex divided into a pair of processes, apical-most process long and curving, in lateral view, the ejaculatory duct is contained within a narrow process, which is sharply downturned apically, the apical-most rod of the phallic tip is sickle-shaped, with a short basal spine. Female and larva. Unknown. Type material. Holotype male. Panama. Coclé Province, Cuenca 134, Omar Torrijos Herrera National Park, Quebrada Las Yayas, PSPSCB-PNGDOTH-C134-2017-004, 8.66168°N and 80.5952°W, 602 m, Malaise trap, 22–26 March 2017, E. Álvarez, E. Pérez, and T. Ríos (COZEM) . Paratype. Chiriqui Province, Cuenca 102, La Amistad International Park, Río Candela, Finca Felix, PSPSCB-PILA- C102-2017-021, 8.90614°N and 82.72882°W, 1,799 m, Malaise trap, 1–5 November 2017, E. Álvarez, E. Pérez, and T. Ríos, 1 male (SCH). Etymology. We take pleasure in naming this species in honor of the brother of the second author, who recently retired from the University of Louisville.Published as part of Armitage, Brian J. & Harris, Steven C., 2020, The Trichoptera of Panama XIV. New species of microcaddisflies (Trichoptera: Hydroptilidae) from Omar Torrijos Herrera National Park, pp. 1-19 in Insecta Mundi 763 on pages 5-6, DOI: 10.5281/zenodo.377912
Social networks: the future of marketing for small business
No full textPurpose – The authors review recent developments in online marketing strategy that demonstrate the growing power of online communities in building brand reputations and customer relationships. Design/methodologies/approach – This work draws upon the results of an ongoing research project that is investigating the use of new technologies by entrepreneurial growing businesses in the London area. A range of examples from our 30 case study businesses are drawn upon to illustrate some of the opportunities and threats associated with these new marketing priorities.<br/
Contarinia manii Harris
No full textContarinia manii Harris (new species) Figures 1, 2 and 4–9. Adults. Wing (Fig. 4) relatively short and broad, wing length (arculus to apex) about 1.2–1.3 mm, R 5 joining costa posterior to wing apex and R 5 thickened near junction with Rs. Antennae with 12 flagellomeres in both sexes; male flagellomeres binodose (Figs. 5), each node with a single set of circumfilar loops and with loops subtended by sharply tapered setae angled out at about 45 degrees from the longitudinal antennal axis; female flagellomeres cylindrical with very short necks, first and second flagellomeres separated in some specimens but connate in others. Eyes large, holoptic (Fig. 5), with eye-bridge 8–10 ommatidia long and with 7–10 fronto-clypeal setae; maxillary palps 3–4 segmented; labellae rounded, each with 8–10 lateral setae; abdominal tergites 1–6 narrowly rectangular, with continuous rows of up to 40 setae along posterior edges and a few additional lateral setae; tergite 7 more quadrate and with fewer setae arranged irregularly in 3–4 rows; female tergite 8 much shorter and smaller than tergite 7 and with only a few weak, scattered setae in posterior half; ovipositor retractable (Fig. 6), about twice as long as tergite 7; cerci dorso-ventrally flattened, with two pairs of thickened sensory setae in distal quarter and some shorter, weaker setae (Fig. 7); male genitalia (Fig. 8) with cerci slightly separated medially; hypoproct dark and thick; gonocoxites cylindrical and gonostyles tapering gradually towards terminal claw-like combs; aedeagus short and parallel-sided, rounded distally (but collapsing in permanent slide mounts). Larvae. No recently collected specimens were available but remains of three larvae extracted from galls collected in Walayar Forest by Odette Rohfritsch in 1971 have the sternal spatula blade reduced to a single small tooth (Fig. 9). Pupae. The only specimens available are the remains of four male pupae dissected in 2009 from galls collected by Odette Rohfritsch at Walayar Station in 1971. These do not have any armature on the cephalic sclerites and, so far as can be seen, conform with the pupal characters given for Contarinia carolinae Gagné in Gagné & Marohasy (1993). Material examined. HOLOTYPE male no. 20500, INDIA, Sirukadambur, near Gingee, Tamil Nadu; reared from 'piston and rod' galls on Acacia ferruginea, by S. Amerjothy, vial 2, 06.iv. 2007. Paratypes males nos. 20499, 20501, 20502, 20621; and females nos. 20497, 20498, 20503, 20622, 20623, with same data as holotype. Holotype and paratypes deposited in the Natural History Museum, London, UK. The following additional specimens were studied: 5 larvae (on slides 20625 and 20626), and 3 pupae (on slide 20624), retrieved in October 2009 by the author from galls collected at Walayar Station by Odette Rohfritsch in 1971, and 2 larvae (on slide 20627), also retrieved from galls collected near Madras by Odette Rohfritsch in 1988. Biology. Rohfritsch (1971) reported that C. manii (as Lobopteromyia sp.) was known only from one locality on the eastern side of the Western Ghats and that mature galls, which are 5–7 mm long, were present in February and July, indicating the occurrence of at least two adult generations per annum, at the end of the short rainy seasons in November and June. She also established that the host plant is Acacia ferruginea D.C.. Her anatomical studies are particularly detailed and show that gall development is initiated by the first instar larva and continues so long as live larvae are present. She also reported that a special nutritive tissue develops in these galls. This species has since been found at a number of locations near Madras. Etymology. This species is named after the late Professor M.S. Mani in recognition of his studies of Indian plant galls and his major contributions to cecidological research over many years. Comments. Contarinia, as currently defined, is a large, catch-all genus and C. manii does not fit well into even the broad generic definition used here. Final instar larvae do not have the terminal pair of recurved corniform papillae that are so characteristic of most known species and the sternal spatula blade is reduced to a single tooth, whereas sternal spatulae of most known species have a bilobed blade with a long shaft. In addition, the pupa of C. manii lacks cephalic setae and has very short thoracic spiracles; females have an unusually short ovipositor; males have a darkened and thickened hypoproct and the galls are much more complex than those induced by most known species of Contarinia. The same applies to C. carolinae and, so far as is known, to C. ramachandrani. These differences suggest that these species are part of a monophyletic group of species inducing complex galls on Acacia in East Africa and southern India and that group may also include C. bivalviae (Rao), which induces bi-valved leaf galls on Acacia catechu in India. Further collections of adult, pupal and larval material are needed to provide the basis for more detailed study of the inducers of these remarkable galls and efforts should be made to record and conserve them.Published as part of Harris, Keith M., 2010, Contarinia manii sp. n. (Diptera, Cecidomyiidae): inducer of a remarkable gall on Acacia ferruginea in southern India, pp. 63-68 in Zootaxa 2423 on pages 64-68, DOI: 10.5281/zenodo.29328
K-Theory for AF Algebras
No full textK-theory for C*-algebras provides a means ofestablishing stable and complete*-isomorphism invariants.This work reestablishes the results of Elliot, Dixmier, Bratteli andElliot pertaining to the formation of a complete *-isomorphisminvariants for the class of AF algebras utilizing the K0 functor.It is shown that AF algebras have real rank zero which is the non-commutativeanalogue of zero dimensionality ergo characterizing AF algebras isa first step to characterizing stably finite C*-algebrasin general. The next stage utilizes the K1 functor as a *-isomorphisminvariant between C*-algebras built on one dimensionalspaces such as Bunce Deddens algebras. Such algebras can be viewedas functions on "non-commutative'' spaces giving rise to the fieldof noncommutative topology
Ochrotrichia birdae Harris and Armitage 2019, new species
No full textOchrotrichia birdae Harris and Armitage, new species Fig. 17 Diagnosis. This species is very similar to Ochrotrichia flagellata which was described from Panama by Flint in 1972. The new species differs from O. flagellate most notably in the structure of the phallus apex; in O. flagellata the phallus ends in a spiral process which is absent in O. birdae. There are several other differences seen in the new species; the dorsal extension of segment VIII is more pronounced and the apical portion of segment X is straight as opposed to upturned, both features as seen in lateral view. Also, in O. flagellata the inferior appendages are shorter than the tenth segment Male. Length 2.4-2.6 mm, 27 antennal segments, brown in alcohol. Abdominal segment VII annular, without short posteroventral process. Segment VIII in lateral view with lobe-like dorsal extension; ventrally square; dorsally deeply incised forming elongate lateral lobes posteriorly, anteriorly rounded. Segment IX reduced dorsally to narrow band. Segment X in lateral view tapering distally to narrow, acute apex; dorsally wide basally gradually tapering distally to rounded apex. Inferior appendages rectanguloid in lateral view, abruptly widening apically, numerous peglike setae on inner posterior margin and subbasally, extending distally beyond segment X; in ventral view wide basally curving on inner margin to rounded apex, numerous peglike setae on apical mesal margins. Phallus elongate, wide basally, narrowing at midlength, apical portion about same length as basal, very thin and narrowing distally. Female. Unknown. Type material. Holotype, male— Panama, Bocas del Toro Province, Quebrada Rambala, near Rambala Jungle Lodge, 3.74 km SSE Rambala, 8.91627°N and 82.15469°W, 120 m, Malaise trap, December 21–31, 2016, E. Carlson. Paratype. ibid., November 15–20, 2016, 1 male (SCH). Etymology. Named for Suzanne Bird Boyden, colleague of the first author at Clarion University, in recognition of her contributions to ecology, and instilling an appreciation of nature in our students. Note. As the new species is similar to O. flagellata, which we have also collected collected in Bocas del Toro Province, Panama, we have provided new drawings (Fig. 18) of the species from these Panamanian specimens. Material examined: Bocas del Toro Province, Quebrada Rambala, near Rambala Jungle Lodge, 3.74 km SSE Rambala, 8.91627°N and 82.15469°W, Malaise trap, March 31–April 11, 2015, E. Carlson, 4 males; ibid., November 15–20, 2016, 1 male; ibid., February 6–12, 2017, 2 males, tributary of Quebrada Rambala, Rambala Jungle Lodge, 134 m, November 29, 2014, E. Carlson, 1 male.Published as part of Harris, Steven C. & Armitage, Brian J., 2019, The Trichoptera of Panama X. The Quebrada Rambala drainage, with description of 19 new species of microcaddisflies (Trichoptera: Hydroptilidae), pp. 1-54 in Insecta Mundi 707 (707) on page 15, DOI: 10.5281/zenodo.367349
Also By The Same Author: AKTiveAuthor, a Citation Graph Approach to Name Disambiguation
No full textThe desire for definitive data and the semantic web drive for inference over heterogeneous data sources requires co-reference resolution to be performed on those data. In particular, name disambiguation is required to allow accurate publication lists, citation counts and impact measures to be determined. This paper describes a graph-based approach to author disambiguation on large-scale citation networks. Using self-citation, co-authorship and document source analyses, AKTiveAuthor clusters papers, achieving precision of 0.997 and recall of 0.818 over a test group of eight surname clusters
Milton Harris
No full textMILTON HARRIS
NBS: 1931 ‑ 1944
Birth: March 21, 1906, Los Angeles, California
Death: September 12, 1991, Chevy Chase, Maryland
Education:
Oregon State University, BSc, 1926
Yale University, PhD (Protein Chemistry), 1929
Principal fields:
Textile, cellulose and high polymer chemistry research
Positions held at NBS:
Research Associate
Director of Research, Textile Foundation and Textile Research Institute
Post‑NBS employment: Polymers Division Advisory Panel; Chairman, Experimental Technology Incentive Program (ETIP) Evaluation Panel; NBS Visiting Committee; established annual Applied Research Award
Honors:
American Association of Textile Chemists and Colorists Olney Medal, 1945
Philadelphia Textile Institute, ScD (Hon.), 1955
Society of Chemical Industry Perkin Medal, 1970
Yale University Wilbur Lucius Cross Medal, 1974
American Chemical Society Priestley Medal, 1980
American Institute of Chemists Gold Medal, 1981
Elected to Sigma Xi
Memberships (selected):
American Chemical Society (Chairman)
American Institute of Chemists (President, Chairman)
American Association for the Advancement of Science
American Society of Biological Chemists
National Academy of Engineering
Cosmos Club
Publications:
Author of over 200 scientific papers on textiles, cellulose and high polymer chemistry (including 54 papers published in the NBS Journal of Research) and several books, including Handbook of Textile Fibers, Harris Research Laboratories, 1954; holder of 35 patents; member of advisory or editorial boards of Journal of Polymer Science, Textile Research Journal, Advances in Chemistry series, and C&E News
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