247 research outputs found
Que debiera ser una universidad
Fil: Asbby, Eric. Clare College. Cambridge, InglaterraDiscurso pronunciado el 9 de octubre de 1964, en la Asamblea del Centenario de la Universidad de Cornell. El autor, Master del Clara College (Cambridge, Inglaterra), es miembro de la Royal Society y ha sido presidente de la Asociación Británica por la Promoción de la Ciencia. Ha escrito, entre otros, los siguientes libros: The Challenge to Education; Scientist in Russia,- Technology and the Academies; Community of Universities y African Universities and Western Traditio
Universities in Australia.
The author states that the purpose of writing this piece is to put before the Australian public the case for universities. It is directed to parents who want their children to get a degree; to industrialists who employ (or refuse to employ) university men and women; to those public servants who look on graduates with suspicion and to those politicians who look on them with contempt. [p.5, ed]
This essay deals with the problems which Australian universities face. [p.6, ed]
It deals with issues of attitudes towards Australian universities, subjects, curriculum, barriers to entry and much more
Increasing Access to Food: A Comprehensive Report on Food Supply Options
Access to food is one of the most important aspects of a healthy, sustainable community. Grocery stores and other suppliers can serve as an economic anchor to provide social benefits to communities. Unfortunately, many communities do not have convenient and/or affordable access to grocery items, particularly fresh produce.
As part of Virginia Commonwealth University\u27s Fall 2019 graduate course on Urban Commercial Revitalization, class members researched 13 retail and other food access options, which are described in this report. Each chapter covers a food access option and provides basic information that will be useful to individuals, organizations, or government agencies that wish to attract and/or develop grocery operations in their communities
High regulatory gene use in sea urchin embryogenesis: Implications for bilaterian development and evolution
A global scan of transcription factor usage in the sea urchin embryo was carried out in the context of the Strongylocentrotus purpuratus genome sequencing project, and results from six individual studies are here considered. Transcript prevalence data were obtained for over 280 regulatory genes encoding sequence-specific transcription factors of every known family, but excluding genes encoding zinc finger proteins. This is a statistically inclusive proxy for the total “regulome” of the sea urchin genome. Close to 80% of the regulome is expressed at significant levels by the late gastrula stage. Most regulatory genes must be used repeatedly for different functions as development progresses. An evolutionary implication is that animal complexity at the stage when the regulome first evolved was far simpler than even the last common bilaterian ancestor, and is thus of deep antiquity
Prospectus, June 6, 1983
IS SUMMER FOR VACATION OR SCHOOL?; 520 earn Parkland honors during spring semester; News Digest; Martel speaks at Parkland graduation; School pressures blamed for increased student suicides; Mayor Dodd: Full-time job for part-time pay; What\u27s new in todayhttps://spark.parkland.edu/prospectus_1983/1015/thumbnail.jp
A Critical Assessment of Stellar Mass Measurement Methods
In this paper we perform a comprehensive study of the main sources of random
and systematic errors in stellar mass measurement for galaxies using their
Spectral Energy Distributions (SEDs). We use mock galaxy catalogs with
simulated multi-waveband photometry (from U-band to mid-infrared) and known
redshift, stellar mass, age and extinction for individual galaxies. Given
different parameters affecting stellar mass measurement (photometric S/N
ratios, SED fitting errors, systematic effects, the inherent degeneracies and
correlated errors), we formulated different simulated galaxy catalogs to
quantify these effects individually. We studied the sensitivity of stellar mass
estimates to the codes/methods used, population synthesis models, star
formation histories, nebular emission line contributions, photometric
uncertainties, extinction and age. For each simulated galaxy, the difference
between the input stellar masses and those estimated using different simulation
catalogs, , was calculated and used to identify the most
fundamental parameters affecting stellar masses. We measured different
components of the error budget, with the results listed as follows: (1). no
significant bias was found among different codes/methods, with all having
comparable scatter; (2). A source of error is found to be due to photometric
uncertainties and low resolution in age and extinction grids; (3). The median
of stellar masses among different methods provides a stable measure of the mass
associated with any given galaxy; (4). The deviations in stellar mass strongly
correlate with those in age, with a weaker correlation with extinction; (5).
the scatter in the stellar masses due to free parameters are quantified, with
the sensitivity of the stellar mass to both the population synthesis codes and
inclusion of nebular emission lines studied.Comment: 33 pages, 20 Figures, Accepted for publication in Astrophysical
Journa
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