867 research outputs found
Collective Improvisation: The Practice and Vision of Ingemar Lindh
No full textIngemar Lindh's research on the principles of collective improvisation and performance conceived as process announce an important development in the 20th-century tradition of the actor's work. After early studies with Étienne Decroux and working collaborations with Jerzy Grotowski, Eugenio Barba, and Yves Lebreton, Lindh founded the first laboratory theatre in Sweden in 1971, the Institutet för Scenkonst. His practice of collective improvisation is viewed in light of postdramatic concerns such as its resistance to fixed scores, directorial montage, and choreography as an organizing principle
SeaCycler: A moored open-ocean profiling system for the upper ocean in extended self-contained deployments
No full textThe upper ocean, including the biologically productive euphotic zone and the mixed layer, has great relevance for studies of physical, biogeochemical, and ecosystem processes and their interaction. Observing this layer with a continuous presence, sampling many of the relevant variables, and with sufficient vertical resolution, has remained a challenge. Here a system is presented which can be deployed on the top of deep-ocean moorings, with a drive mechanism at depths of 150-200m, which mechanically winches a large sensor float and smaller communications float tethered above it to the surface and back down again, typically twice per day for periods up to 1 year. The sensor float can carry several sizeable sensors, and it has enough buoyancy to reach the near surface and for the communications float to pierce the surface even in the presence of strong currents. The system can survive mooring blow-over to 1000m depth. The battery-powered design is made possible by using a balanced energy-conserving principle. Reliability is enhanced with a drive assembly that employs a single rotating part that has no slip rings or rotating seals. The profiling bodies can break the surface to sample the near-surface layer and to establish satellite communication for data relay or reception of new commands. An inductive pass-through mode allows communication with other mooring components throughout the water column beneath the system. A number of successful demonstration deployments have been completed
Toward functional characterization of Triticum aestivum WFCA-coding sequences
No full textFlowering is a critical step in the plant life cycle. If flowering occurs too early or
too late, seed production suffers. Flowering is regulated through numerous flowering
repressors. As long as these repressors persist, the plant will remain in a vegetative
growth stage. Some plants possess two separate genetic pathways, the autonomous
pathway and the vernalization pathway, that promote the transition to flowering through
stable downregulation of flowering repressors. Once the plant achieves floral
competence, it will flower under inductive environmental conditions.
In Arabidopsis, FCA is a key autonomous pathway gene, acting with FY to
promote the floral transition. Recently, gene sequences resembling FCA were cloned
from hexaploid wheat (Triticum aestivum) and designated as WFCA. WFCA shows
numerous similarities to the FCA peptide, especially regarding three key regions: two
RNA Recognition Motifs and the WW domain. This study seeks to determine if WFCA
genes function similar to FCA by determining if they are able to complement the fca-1
mutant of Arabidopsis thaliana.
T1 progeny from an Arabidopsis fca-1 plant transformed with WFCA were
grown without vernalization and assayed for the final leaf number (FLN). The late
flowering fca-1 control plants bolted with an average FLN of 14.8 while the T1
population had an average FLN of 14.3. Although the numerical difference is slight, the
results are statistically significant, and suggest that WFCA genes may have some degree of flowering promotion activity in Arabidopsis. The lack of strong complementation
may be due to divergence of the WFCA genes from their Arabidopsis counterparts. With
increasing evidence for divergence in flowering promotion between monocot and dicot
species, the development of a robust monocot model system appears to be critical to
provide a good framework to assist studies of the particular nuances of the monocot
flowering process
FIGURE 13 in A new species of planthopper in the genus Shellenius (Hemiptera: Fulgoroidea: Derbidae) from palms in Costa Rica
No full textFIGURE 13. Lateral views of type material of Fowler Otiocerus species from BMNH now placed in Shellenius; (A) Shellenius montanus, (B) Shellenius griseus, (C) Shellenius gracilior, and (D) Shellenius interruptus, new comb.Published as part of Bahder, Brian W., Zumbado Echavarria, Marco A., Barrantes Barrantes, Edwin A., Helmick, Ericka E. & Bartlett, Charles R., 2023, A new species of planthopper in the genus Shellenius (Hemiptera: Fulgoroidea: Derbidae) from palms in Costa Rica, pp. 571-585 in Zootaxa 5306 (5) on page 584, DOI: 10.11646/zootaxa.5306.5.5, http://zenodo.org/record/807327
Ordinary christology: a qualitative study and theological appraisal
No full textThe aim of this study is to identify and critically to analyse the ordinary christologies of a group of thirty regular Anglican churchgoers. Ordinary christology, by the definition employed here, is the account, by believers who have received no formal theological education, of who Jesus was/is (christology) and what he did/does (soteriology). Data was gathered by means of in-depth interviews. Three main christologies are identified: these are designated as fuctional, ontological and sceptical christology. Functional christology considers Jesus to be the Son of God, not God and is effectively Arian; ontological christology holds the orthodox doctrine that Jesus is God; and sceptical christology doubts or denies altogether the divinity of Jesus. Three main soteriologies are also identified: these are named as exemplarist, traditionalist and evangelical soteriology. Exemplarist soteriology emphasises the life and death of Jesus as exemplary; traditionalist soteriology cannot articulate a theology of the cross at all; and evangelical soteriology hinges on substitutionary atonement and a personal relationship with Jesus. Functional christology and exemplarist soteriology dominate the sample. Difficulties with the 'traditional' theology of the cross, and the idea that God’s forgiveness is dependent on Jesus' atoning death, are widespread amongst the sample, indicating that new ways of telling the story of how Jesus saves are urgently required if Christianity is to capture again the imagination of our contemporary world. Various formal characteristics of ordinary christology are also brought to light. The ordinary Christology of this sample is story-shaped, avoids metaphysical speculation, highlights the affective dimension of christology, resists learning cliristological dogma and is primarily non-cognitive. It also shows that christology is at heart an on-going hermeneutical process rather than a doctrinal system, and it suggests that what matters most in christology is not right doctrine, but letting the story of Jesus have its way with us
Evaluation of CTX-M steady-state mRNA, mRNA half-life and protein production in various STs of Escherichia coli
No full textObjectives High levels of β-lactamase production can impact treatment with a β-lactam/β-lactamase inhibitor combination. Goals of this study were to: (i) compare the mRNA and protein levels of CTX-M-15- and CTX-M-14-producing Escherichia coli from 18 different STs and 10 different phylotypes; (ii) evaluate the mRNA half-lives and establish a role for chromosomal- and/or plasmid-encoded factors; and (iii) evaluate the zones of inhibition for piperacillin/tazobactam and ceftolozane/tazobactam. Methods Disc diffusion was used to establish zone size. RNA analysis was accomplished using real-time RT–PCR and CTX-M protein levels were evaluated by immunoblotting. Clinical isolates, transformants and transconjugants were used to evaluate mRNA half-lives. Results mRNA levels of CTX-M-15 were up to 165-fold higher compared with CTX-M-14. CTX-M-15 protein levels were 2–48-fold less than their respective transcript levels, while CTX-M-14 protein production was comparable to the observed transcript levels. Nineteen of 25 E. coli (76%) had extended CTX-M-15 mRNA half-lives of 5–15 min and 16 (100%) CTX-M-14 isolates had mRNA half-lives of <2–3 min. Transformants had mRNA half-lives of <2 min for both CTX-M-type transcripts, while transconjugant mRNA half-lives corresponded to the half-life of the donor. Ceftolozane/tazobactam zone sizes were ≥19 mm, while piperacillin/tazobactam zone sizes were ≥17 mm. Conclusions CTX-M-15 mRNA and protein production did not correlate. Neither E. coli ST nor phylotype influenced the variability observed for CTX-M-15 mRNA or protein produced. mRNA half-life is controlled by a plasmid-encoded factor and may influence mRNA transcript levels, but not protein levels
Social and Environmental Risk and the Development of Social Complexity in Precolumbian Masaya, Nicaragua
No full textThis dissertation evaluates the applicability of three models that purport to describe and predict the development and establishment of social complexity based on the interplay between environmental setting and human communities. The three models are juxtaposed in terms of the conditions required to foment the development of and formalization of social complexity and the corresponding level of inequality, so that each model requires contrasting environmental risk conditions relative to the other two.
Considering the relative dearth of archaeological studies focused on understanding the development of social complexity in Nicaragua, and the abundance of readily accessible precolumbian ceramics and lithics available on soil surfaces, a full coverage, surface survey (172km2) was conducted in the municipalities of Tisma and Ticuantepe in the vicinity of Masaya, Nicaragua in order to obtain the data necessary to test the suitability of each model. Relative synchronic and diachronic changes, including the tempo and pace were documented using the established and broadly accepted ceramic chronology, including the distribution over the municipal territories and the densities of occupation within each defined community. The results indicate very distinctive patterns for each region over an occupation sequence lasting at least two millennia.
Though this dissertation illustrates the limitations of each model using the data available, it also contributes to a clearer understanding of the configurations and trajectories of social change may take in Pacific Nicaragua, thus adding to the growing corpus of comparable archaeological datasets that may bring forth increasingly sophisticated models explaining the development of inequality and its role in the development of increasingly complex social forms.
The complete settlement dataset is available in the University of Pittsburgh Comparative Archaeology Database (http://www.cadb.pitt.edu/)
The political and military career of General Anastasio Bustamente (1780-1853)
No full textAnastasio Bustamante was born in the modern day state of Michoacan in
1780. He served the Royalist Army during the insurgency (1810-1821). He was one
of the first officers to adhere to Agustin de Iturbide's Plan of Iguala in 1821, and a
signatory of the Act of Independence (28 September 1821). He was a member of
Mexico's first independent government, the Junta Provisional Gubernativa (1821-
1822) and served as the Captain General of the Eastern and Western Internal
Provinces during Iturbide's short-lived reign as Emperor (1822-1823). He served as
the Commander General of the Eastern Interior Provinces between 1826 and 1829. In
1829 he became Vice-President of the Republic. In December 1829 he led a
successful rebellion against the incumbent President, Vicente Guerrero. He served as
acting Head of the Executive between 1830 and 1832. In 1837 he was elected
President. He occupied this position until 1841. He commanded the troops of the
Western Division during the war with the United States (1846-1848). Between 1848
and 1849, he oversaw the pacification of one of the many rebellions of the Sierra
Gorda (now the Sierra de Queretaro). He died in Guanajuato in 1853, aged 73.
This study examines Bustamante's military and political career. It rejects the
traditional interpretation of the General, which portrays him as a weak and indecisive
man lacking in any real political principles. Instead, it argues that Bustamante was a
resolute and pragmatic leader, who supported the cause of moderate federalism for
most of his career
Stereotypes of special admission students: peer perceptions of athlete and non-athlete special admit students.
No full textThe purpose of this study was to evaluate the different stereotypes that
individuals, within a university���s general student population, held toward studentathletes
and non-athlete students admitted to the university on a special admission basis
(students admitted with requirements less than the stated minimum for admission). Two
studies, one qualitative in nature and the other with a quantitative focus, were conducted
to assess students��� perceptions of special admission students.
The results of this study show that students from a university���s general
population have more of a negative stereotype or perception of athlete special
admissions, as compared to a non-athlete special admission student, when interacting in
an academic setting. On the other hand, the general student population indicated a more
positive perception for allowing special admission to athletes than they did for allowing
special admission to non-athlete students
Wheat Production in the High Winter Stress Climate of the Great Plains of North America-An Experiment in Crop Adaptation
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