694 research outputs found
The Celluloid Specimen
No full textIn The Celluloid Specimen, Benjamín Schultz‑Figueroa examines rarely seen behaviorist films of animal experiments from the 1930s and 1940s. These laboratory recordings—including Robert Yerkes’s work with North American primate colonies, Yale University’s rat‑based simulations of human society, and B. F. Skinner’s promotions for pigeon‑guided missiles—have long been considered passive records of scientific research. In Schultz‑Figueroa’s incisive analysis, however, they are revealed to be rich historical, political, and aesthetic texts that played a crucial role in American scientific and cultural history—and remain foundational to contemporary conceptions of species, race, identity, and society.
“Essential reading for anyone in behavioral science and media studies.” — LISA CARTWRIGHT, University of California, San Diego
“Remarkable and urgently needed. Benjamín Schultz‑Figueroa disinters an extraordinary lost archive that sheds new light on race, eugenics, species, the science of sex, and biopolitics. A resonant— and stunningly clear—intervention.” — DONOVAN SCHAEFER, author of Wild Experiment: Feeling Science and Secularism after Darwin
“A fertile, sprawling, kaleidoscopic work. No book outlines the multiple functions of the scientific moving image as thoroughly. A brilliant and essential addition to animal studies, cinema and media studies, and the history of science.” — SCOTT CURTIS, author of The Shape of Spectatorship: Art, Science, and Early Cinema in Germany
“Seriously speculative, meticulously researched, and boldly interdisciplinary, The Celluloid Specimen cross‑pollinates nontheatrical film studies and critical animal studies with stunning acumen and gripping analysis.” — YIMAN WANG, University of California, Santa Cru
Variable-energy positron beam study of arsenic diffusion in poly-silicon
No full textThe positron beam technique is shown to be a sensitive indicator of the presence of arsenic within the grain boundaries of poly-silicon. Variable-energy positron beam and secondary-ion mass spectrometry studies have been performed on As+-implanted pre-amorphized Si samples as a function of dose and rapid thermal anneal temperature. Positron trapping within negatively-charged grain boundaries of the recrystallized poly-Si is observed, resulting in a similar to 2% elevation in the Doppler-broadening S lineshape parameter value. Infusion of As+-ions into the grain boundaries passivates the charge and reduces their specific positron-trapping rate.PT: J; CR: AERS GC, 1991, POSITRON BEAMS SOLIE, P162 ASOKAKUMAR P, 1993, NUCL INSTRUM METH B, V74, P89 BOUSETTA A, 1991, NUCL INSTRUM METH B, V55, P565 DANNEFAER S, 1987, PHYS STATUS SOLIDI A, V102, P481 DANNEFAER S, 1989, J APPL PHYS, V66, P3526 DLUBEK G, 1987, PHYS STATUS SOLIDI A, V102, P443 FLYNN CP, 1992, POINT DEFECTS DIFFUS GANIN E, 1989, APPL PHYS LETT, V54, P2127 HAKVOORT RA, 1992, MATER SCI FORUM, V105, P1391 HAKVOORT RA, 1993, THESIS DELFT U TECHN JACKMAN TE, 1989, APPL PHYS A-SOLID, V49, P335 KALISH R, 1984, APPL PHYS LETT, V44, P107 KEINONEN J, 1988, PHYS REV B, V37, P8269 LEO PH, 1981, PHYS STATUS SOLIDI B, V108, K145 LOMBARDO S, 1994, J APPL PHYS, V75, P345 MAKINEN J, 1990, J APPL PHYS, V67, P990 MITCHELL IV, 1991, POSITRON BEAMS SOLID, P121 NASU H, 1987, YOGYO-KYOKAI-SHI, V95, P5 NIELSEN B, 1987, APPL PHYS LETT, V51, P1022 NIELSEN B, 1991, PHYS REV B, V44, P1812 SCHULTZ PJ, 1988, PHYS REV LETT, V61, P187 SCHULTZ PJ, 1988, REV MOD PHYS, V60, P701 SEIDEL TE, 1991, NUCL INSTRUM METH B, V55, P17 SIMPSON PJ, 1991, POSITRON BEAMS SOLID, P125 TAKAI M, 1989, NUCL INSTRUM METH B, V39, P352 TANDBERG E, 1989, CAN J PHYS, V67, P275 VANDERDRIFT A, 1967, PHILIPS RES REP, V22, P267; NR: 27; TC: 0; J9: APPL SURF SCI; PG: 6; GA: QD950Source type: Electronic(1
Ruin in the films of Jia Zhangke
No full textThis article explores the reflection, representation and psychogeographic affect of the ruins in the films by the Chinese filmmaker Jia Zhangke (b. 1970). During the Maoist period, ruins were signs of developmental progression; as Mao Zedong proclaimed, ‘there is no construction without destruction ... Put destruction first, and in the process you have construction.’ The author argues that the ruins are not just the effects of China’s fast-paced modernization, but are also symbols of the destruction of Maoist society. Furthermore, by recording the state and act of destruction, these films enhance the phenomenological and affective aspects of the ruin. Finally, when construction is realized in the films (the construction from destruction), it is either threatening or ‘futuristic’; thus, both the ruin and construction estrange the previous residents from their environment by rejecting them from the places that they once lived and chronologically estrange them from the projected utopian future
Tagging of Biomedical Articles on CiteULike: A Comparison of User, Author and Professional Indexing
No full textThis paper examines the context of online indexing from the viewpoint of three different groups: users, authors, and professional indexers. User tags, author keywords and descriptors were collected from academic journal articles, which were both indexed in Pubmed and tagged on CiteULike, and analysed. Descriptive statistics, informetric measures, and thesaural term comparison shows that there are important differences in the use of keywords between the three groups in addition to similarities which can be used to enhance support for search and browse. While tags and author keywords were found that matched descriptors exactly, other terms which did not match but provided important expansion to the indexing lexicon were found. These additional terms could be used to enhance support for searching and browsing in article databases as well as to provide invaluable data for entry vocabulary and emergent terminology for regular updates to indexing systems. Additionally, the study suggests that tags support organisation by association to task, projects and subject while making important connections to traditional systems which classify into subject categories
Vacancy generation resulting from electrical deactivation of arsenic
No full textElectrical deactivation of arsenic in highly doped silicon has been studied using the positron-beam technique. Direct experimental evidence linking the formation of arsenic-vacancy complexes (i.e., As-n-v) to the deactivation process is reported. The average number of arsenic atoms per complex, (n) over bar>2, was determined by comparing the observed complex concentrations with those of the deactivated arsenic inferred from Hall-effect measurements. (C) 1995 American Institute of Physics.PT: J; CR: AERS GC, 1991, POSITRON BEAMS SOLIE, P162 ALATALO M, 1995, PHYS REV B, V51, P4176 CHU WK, 1980, LASER SOLID INTERACT, P253 DANNEFAER S, 1987, PHYS STATUS SOLIDI A, V102, P481 DLUBEK G, 1987, PHYS STATUS SOLIDI A, V102, P443 FAHEY PM, 1989, REV MOD PHYS, V61, P289 GOETZLICH J, 1985, ION BEAN PROCESSES A, P349 GOLDBERG RD, 1995, APPL SURF SCI, V85, P287 JACKMAN TE, 1989, APPL PHYS A-SOLID, V49, P335 LIETOILA A, 1981, J APPL PHYS, V52, P230 LIETOLA A, 1980, APPL PHYS LETT, V36, P675 LUNING S, 1992, IEDM, P349 LYNN KG, 1979, PHYS REV B, V20, P3566 PANDEY KC, 1988, PHYS REV LETT, V61, P1282 ROUSSEAU PM, 1994, APPL PHYS LETT, V65, P578 SCHULTZ PJ, 1988, NUCL INSTRUM METH B, V30, P94 SCHULTZ PJ, 1988, REV MOD PHYS, V60, P701 SIMPSON PJ, UNPUB; NR: 18; TC: 38; J9: APPL PHYS LETT; PG: 3; GA: TJ304Source type: Electronic(1
Johnny Guay and Art Schultz
No full textPhotograph - Two men standing in front of Baptiste Lake Supplies Store, Baptiste Lake, Albert
DAMS AND DIKES IN DEVELOPMENT: Symposium at the occasion of the World Water Day, 22 March 2001
No full textIntroduction Ir. Hans van Duivendijk: Dams and dikes - benefits, costs and option assessment Prof Kaare Hoege: Dikes, dams and water management Prof dr. Bart Schultz: Living with dams Prof dr. H.L.F. Saeijs and KirstenD. Schuijt: Safe dams and dikes, how safe? Prof ir. J.K. Vrijling: Dams and development The report of the World Commission on Dams Mr. Jamie Skinner:ICOLD's criteria applied to the southem delta area Ir. Leo Santbergen, Jan WillemSlager and drs. Kees Storm: Role of the consultants Drs. A. Leusink: Contractors, their changing role Ir. JJ. Enneking: List of contributors CommitteesKWP-collectio
Johnny Guay, Art Schultz and Sandy Ross
No full textPhotograph - Three men packing a 1927 Pontiac car with a boat on the roof in Edmonton, Alberta before heading to Baptiste Lak
Positron beam study of annealed silicon nitride films
No full textPositron annihilation spectroscopy has been used to study silicon nitride films grown by plasma-enhanced chemical vapor deposition and annealed at different temperatures. For both silicon-rich and nitrogen-rich films, the positron line shape (S) parameter increases after annealing for 15 min at temperatures up to 700-800 degrees C. This is understood in terms of the fact that removal of the hydrogen by annealing leads to the presence of unpassivated silicon dangling bond sites and vacancy complexes. Annealing at higher temperatures leads to a reduction in the S parameter, consistent with further hydrogen removal producing unpassivated N- sites. (C) 1996 American Institute of Physics.PT: J; CR: ASOKAKUMAR P, 1994, J APPL PHYS, V76, P4935 GOLDBERG RD, 1995, APPL SURF SCI, V85, P287 GOSSMANN HJ, 1992, APPL PHYS LETT, V61, P540 HABRAKEN FHP, 1991, LPCVD SILICON NITRID, P118 HAKVOORT RA, 1991, APPL PHYS LETT, V59, P1687 HAKVOORT RA, 1993, THESIS DELFT U TECHN HEYNS M, 1991, LPCVD SILICON NITRID, P82 LANDFORD WA, 1978, J APPL PHYS, V49, P2473 LANDFORD WA, 1992, NUCL INSTRUM METH B, V66, P65 LANDHEER D, 1995, J APPL PHYS, V78, P2568 LU Z, 1995, J VAC SCI TECHNOL 1, V13, P607 LYNN KG, 1989, CAN J PHYS, V67, P618 MITCHELL LV, 1990, AIP C P, V218, P121 PEROVIC DD, 1991, PHYS REV B, V43, P14257 RUBLOFF GW, 1990, VACUUM, V41, P790 SCHULTZ PJ, 1988, NUCL INSTRUM METH B, V30, P94 SCHULTZ PJ, 1988, PHYS REV LETT, V61, P187 SCHULTZ PJ, 1988, REV MOD PHYS, V60, P701 SIMPSON PJ, 1991, PHYS REV B, V44, P12180 SMITH DL, 1990, J ELECTROCHEM SOC, V137, P614 SMITH DL, 1990, MATER RES SOC S P, V165, P69; NR: 21; TC: 1; J9: J APPL PHYS; PG: 5; GA: TY119Source type: Electronic(1
Armadilloniscus ninae Schultz 1984
No full textArmadilloniscus ninae Schultz, 1984 Figs 1, 2F, 13–14 Armadilloniscus ninae Schultz, 1984: 4, figs 1–2. Material examined COLOMBIA – Bolívar, Cartagena de Indias, Islas del Rosario, Isla Grande • 1 ♂ (parts in micropreparations); Paraíso Secreto; 10°10′15.9″ N, 75°44′38.8″ W; 24 Nov. 2017; C.M. López- Orozco leg.; CUDC-CRU 212 • 1 ♂, 4 ♀♀; same collection data as for preceding; CUDC-CRU 214 • 21 ♂♂, 61 ♀♀; same locality as for preceding; 4 Apr. 2018; C.M. López-Orozco, R. Borja-Arrieta and K. Meza leg.; CUDC-CRU 213 • 3 ♀♀; same locality as for preceding; 6 Sep. 2017; C.M. López- Orozco leg.; CUDC-CRU 215 • 1 ♂, 6 ♀♀ (one with parts in micropreparations); Caño Ratón; 10°10′33.4″ N, 75°44′52.4″ W; 24 Nov. 2017; C.M. López-Orozco leg.; CUDC-CRU 216 • 5 ♀♀; 10°10′44.91″ N, 75°44′53.01″ W; same collection data as for preceding; CUDC-CRU 217. CUBA – Cayo Piedras del Norte, Varadero • 2 ♂♂, 2 ♀♀; 8 Aug. 1985; A. Poggesi leg.; MZUF 1824. Redescription BODY. Color pale brown; cephalon, antennae, epimera of pereonites 1–7, epimera of pleonites 1–5 and uropod protopods more pigmented; pereon and pleon with median and paramedian region more depigmented (Fig. 2F). Body elongated and elliptical-shaped (Fig. 13A). Dorsal surface bearing elongated scale-setae (Fig. 13B). Cephalon and pereon covered with small tubercles (Fig. 13A, C–D): cephalon bearing six tubercles in two rows, anterior row with two and posterior row with four; pereonites 1–7 with one row of 8 tubercles. CEPHALON. Lateral lobes well developed and directed outwards, median lobe triangular, slightly surpassing distal margin of lateral lobes, frontal and suprantennal lines absent; eyes consisting of 5 ommatidia (Fig. 13C–D). PLEON. Outline continuous with that of pereonite 7, epimera of pleonites 3–5 rectangular (Fig. 13A, E). Telson (Fig. 13E) triangular, wider than long, lateral margins almost straight, broadly rounded apex. ANTENNULA. Composed of two articles, second article bearing many lateral setae, distal margin bearing one flagellar seta and two aesthetascs (Fig. 13F). ANTENNA. When extended posteriorly slightly surpassing pereonite 1, flagellum of four articles (Fig. 13G). BUCCAL PIECES. As in Armadilloniscus luisi sp. nov. UROPOD. Protopod enlarged with distal margin slightly rounded, exopod not surpassing protopod, endopod longer than exopod (Fig. 13E). PEREOPODS. Pereopods 1–7 stout, merus to propodus bearing sparse setae on sternal margin, carpus 1 with strong distal seta bearing long sensilla, dactylus with elongated and digitform ungual seta, dactylar seta elongated, apically cleft and plumose. Male PEREOPODS 1 AND 7. Without any sexual modifications (Fig. 14A–B). GENITAL PAPILLA. Ventral shield stout triangular, papilla rounded at apex, bearing small setae (Fig. 14C). PLEOPODS. Pleopod 1 (Fig. 14D) exopod ovoid, wider than long; endopod stout, three times as long as exopod, apical portion slightly bent inwards. Pleopod 2 (Fig. 14E) exopod ovoid, wider than long; endopod with flagelliform distal article. Exopods of pleopods 3–5 as in Fig. 14F–H. Remarks Schultz (1984) described A. ninae from San Pedro beach, Ambergris Cay, Belize. Comparing Shultz’s description with the specimens examined here, it was possible to observe that almost all characters mentioned, including the pale dorsal pigmentation, are quite similar. However, Schultz (1984) mentioned that A. ninae has eyes composed of 14 ommatidia and antennula with three articles, and herein the specimens showed the eyes composed of 5 ommatidia and antennula of two articles. Most probably, the author misinterpreted the composition of the eyes of this species, since the illustrations of the cephalon clearly show a smaller number. The same statement can be applied to the antennula. In general, within Oniscidea, the composition of the antennula does not vary within the genera, with just few exceptions (see Schmidt 2002, 2003). Moreover, analyzing other representatives of Armadilloniscus, it is possible to observe that the antennula is always composed of two articles (see Taiti & Ferrara 1989; Kwon & Wang 1996). Therefore, we identify our specimens as A. ninae. Distribution This species was previously recorded only from San Pedro beach, Ambergris Cay, Belize (Schultz 1984). First record for Colombia and Cuba.Published as part of López-Orozco, Carlos Mario, Carpio-Díaz, Yesenia M., Borja-Arrieta, Ricardo, Navas-S, Gabriel R., Campos-Filho, Ivanklin Soares, Taiti, Stefano, Mateos, Mariana, Olazaran, Alexandra, Caballero, Isabel C., Jotty, Karick, Gómez-Estrada, Harold & Hurtado, Luis A., 2022, A glimpse into a remarkable unknown diversity of oniscideans along the Caribbean coasts revealed on a tiny island, pp. 1-50 in European Journal of Taxonomy 793 on pages 26-29, DOI: 10.5852/ejt.2022.793.1643, http://zenodo.org/record/603789
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