Farm-raised shrimp: good aquacultural practices for product quality and safety

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Making Common Causes: Crises, Conflict, Creation, Conversations: Offerings from the Biennial ALECC Conference Queen’s University, Kingston 2016

At ALECC’s biennial gathering at Queen’s University in June 2016, participants came together to explore the possibilities of “making common causes” from a host of angles, yet all were anchored in an acknowledgement of the diverse more-than-human relationships that make up our common worlds. The following collection of short essays, authored by some of the gathering’s keynote speakers, explores specific aspects of making common causes. In this special section of The Goose, we deliberately invoke the plural of conversation. We understand the effort to make common causes as a process, rather than a “one and done” act. It is multifaceted and messy; it invites imagination and critique. Most importantly, it needs to cultivate the common ground whereupon these difficult conversations can be engaged

Interrelationships among Language Skills, Externalizing Behavior, and Academic Fluency and Their Impact on the Academic Skills of Students with ED

There is growing interest in understanding the factors that influence the academic achievement of students with emotional disturbance (ED). Structural equation modeling was used to test the interrelationships among language skills, externalizing behavior, and academic fluency and their impact on the academic skills of students with ED. Results showed that language skills exerted a significant proximal effect and distal effect on academic skills. The effect of language skills was mediated through academic fluency (path coefficient = .389) but also had a proximal effect on academic skills (path coefficient = .359). However, externalizing behavior failed to have a statistically significant effect on language skills, academic fluency, or academic skills. Overall, fit indices suggested a marginally acceptable fit of the data. Results and implications are discussed

Academic Achievement of K-12 Students With Emotional and Behavioral Disorders

This is the publisher's version, also found here: http://ehis.ebscohost.com/ehost/detail?sid=1c127db2-6bcd-4b12-8e4c-67a20d604dd4%40sessionmgr15&vid=1&hid=5&bdata=JnNpdGU9ZWhvc3QtbGl2ZQ%3d%3d#db=tfh&AN=14908050This cross-sectional study was conducted with a random sample of 155 K'12 students served in public school settings and established the extent to which students with emotional/behavioral disorders (E/BD) experience academic achievement deficits with attention to age and gender differences. In addition, this study examined particular types of problem behaviors related to academic achievement. Results indicate that stuAents with E/BD showed large academic achievement deficits across all of the content areas, and the deficits appeared to be stable or worsen in the case of mathematics across age. There appeared to be no gender differences. Additionally, externalizing behaviors were related to reading, mathematics, and written language achievement; whereas, internalizing ones were not

Two-photon absorption spectra of luminescent conducting polymers measured over wide spectral range

Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United StatesRon K. Meyer, Martin Liess, Robert E. Benner, Werner Gellermann, Z. Valy Vardeny, Masanori Ozaki, Katsumi Yoshino, Yi Wei Ding, and Thomas J. Barton "Two-photon absorption spectra of luminescent conducting polymers measured over wide spectral range", Proc. SPIE 3145, Optical Probes of Conjugated Polymers, (1 December 1997). DOI: https://doi.org/10.1117/12.27927

Fernando de los Ríos, una voz del exilio republicano español en la Universidad de Puerto Rico

The host of Spanish Republican intellectuals after the Spanish Civil War was linked to the establishment of scientific networks that had been forged before the exile. These networks provided a platform to the Spanish intellectual exile in many American countries. Puerto Rico was one of them. Its university supported the arrival of Republican professors and scientists, some of whom had already been on the island teaching some courses since 1924. Besides, the University of Puerto Rico invited several exiled professors to temporarily stay as guests. Fernando de los Rios was one of them. He stayed as professor in 1928 and 1944. His personal experience, ideology and conception of History and the past were reflected in the classes Fernando de los Rios gave at the University of Puerto Rico in 1944.La acogida de intelectuales republicanos españoles tras la Guerra Civil española estuvo vinculada a la existencia de redes científicas que se fraguaron en los años previos al exilio. Estas redes sirvieron de plataforma al exilio intelectual español en muchos países americanos. Puerto Rico fue uno de ellos. Su Universidad favoreció la llegada de profesores y científicos republicanos, algunos de los cuales ya habían estado en la isla impartiendo cursos desde 1924. Además de país de refugio, por las aulas de la Universidad de Puerto Rico desfilaron varios profesores exiliados invitados temporalmente. Uno de ellos fue Fernando de los Ríos, profesor en distintos momentos y situaciones, 1928 y 1944, que compartió con otros exiliados el deambular por tierras americanas impartiendo el magisterio. Su experiencia personal, su ideología y su concepción de la Historia y del pasado se reflejan en las clases que Fernando de los Ríos dictó en la Universidad de Puerto Rico en 1944

Thorium speciation in seawater

Author Posting. © The Authors, 2006. This is the author's version of the work. It is posted here by permission of Elsevier B.V. for personal use, not for redistribution. The definitive version was published in Marine Chemistry 100 (2006): 250-268, doi:10.1016/j.marchem.2005.10.024.Since the 1960’s, thorium isotopes occupy a special place in the oceanographer’s toolbox as tracers for determining rates and mechanisms of oceanic scavenging, particle dynamics, and carbon fluxes. Due to their unique and constant production rates from soluble parent nuclides of uranium and radium, their disequilibrium can be used to calculate rates and time scales of sinking particles. In addition, by ratio-ing particulate 234Th (as well, in principle, other Thnuclides) to carbon (and other elements), and linking this ratio to the parent-daughter disequilibrium in the water column, it is possible to calculate fluxes of carbon and other elements. Most of these applications are possible with little knowledge of the dissolved chemical properties of thorium, other than its oxidation state (IV) and tendency to strongly sorb to surfaces, i.e., its “particle- or surface-activity”. However, the use of any tracer is hindered by a lack of knowledge of its chemical properties. Recent observations in the variability of carbon to 234Th ratios in different particle types, as well as of associations of Th(IV) with various marine organic biomolecules has led to the need for a review of current knowledge and what future endeavors should be taken to understand the marine chemistry of thorium.The writing of this paper was supported, in parts by NSF (OCE-0351559; OCE-0350758, and OCE 0354757)

Apophis planetary defense campaign

We describe results of a planetary defense exercise conducted during the close approach to Earth by the near-Earth asteroid (99942) Apophis during 2020 December–2021 March. The planetary defense community has been conducting observational campaigns since 2017 to test the operational readiness of the global planetary defense capabilities. These community-led global exercises were carried out with the support of NASA's Planetary Defense Coordination Office and the International Asteroid Warning Network. The Apophis campaign is the third in our series of planetary defense exercises. The goal of this campaign was to recover, track, and characterize Apophis as a potential impactor to exercise the planetary defense system including observations, hypothetical risk assessment and risk prediction, and hazard communication. Based on the campaign results, we present lessons learned about our ability to observe and model a potential impactor. Data products derived from astrometric observations were available for inclusion in our risk assessment model almost immediately, allowing real-time updates to the impact probability calculation and possible impact locations. An early NEOWISE diameter measurement provided a significant improvement in the uncertainty on the range of hypothetical impact outcomes. The availability of different characterization methods such as photometry, spectroscopy, and radar provided robustness to our ability to assess the potential impact risk

Ron Benner/Tom Benner

Includes biographical notes on Tom Benner and a statement by Ron Benner