112 research outputs found
Strategies for addressing mountain pine beetle outbreaks on national forests
No full textEmily Jane Davis, Heidi Huber-Stearns, Jesse Abrams, Michelle M. Steen-Adams, Christopher Bone, Cassandra Moseley, and Autumn Ellison,This archived document is maintained by the Oregon State Library as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Supported by the National Science Foundation under 1414041.Mode of access: Internet from the Oregon Government Publications Collection.Text in English
Suitability of soxhlet extraction to quantify microalgal fatty acids as determined by comparison with in situ transesterification
No full textAuthor Posting. © The Author(s), 2011. This is the author's version of the work. It is posted here by permission of Springer for personal use, not for redistribution. The definitive version was published in Lipids 47 (2012): 195-207, doi:10.1007/s11745-011-3624-3.To assess Soxhlet extraction as a method for quantifying fatty acids (FA) of microalgae, crude lipid, FA content from Soxhlet extracts and FA content from in-situ transesterification (ISTE) were compared. In most cases, gravimetric lipid content was considerably greater (up to 7-fold) than the FA content of the crude lipid extract. FA content from Soxhlet lipid extraction and ISTE were similar in 12/18 samples, whereas in 6/18 samples, total FA content from Soxhlet extraction was less than the ISTE procedure. Re-extraction of residual biomass from Soxhlet extraction with ISTE liberated a quantity of FA equivalent to this discrepancy. Employing acid hydrolysis before Soxhlet extraction yielded FA content roughly equivalent to ISTE, indicating that acidic conditions of ISTE are responsible for this observed greater recovery of FA. While crude lipid derived from Soxhlet extraction was not a useful proxy for FA content for the species tested, it is effective in most strains at extracting total saponifiable lipid. Lipid class analysis showed the source of FA was primarily polar lipids in most samples (12/18 lipid extracts contained 15%). This investigation confirms the usefulness of ISTE, reveals limitations of gravimetric methods for projecting biodiesel potential of microalgae, and reinforces the need for intelligent screening using both FA and lipid class analysis.2012-11-0
Toric mirror symmetry and GIT windows
No full text"This thesis, partially based on the author's joint work [HZ20], studies mirror symmetry for toric varieties from the perspective of geometric invariant theory. We translate GIT constructions of toric varieties into skeletal terms and study them in the context of wrapped Fukaya categories and wrapped constructible sheaves. We explain how the mirror image of the Halpern-Leistner-Sam ""magic window"" for quasi-symmetric torus actions computes the category associated to the equivariant semistable skeleton upon stop removal, where the generating cotangent fibers are described by a generic shift of a lattice zonotope in the real character space of the torus. After identifying the ""FI parameter space"" of the B-model GLSM with the GKZ complex parameter space of the skeletal LG A-model, homological mirror symmetry in the quasi-symmetric case becomes two geometric incarnations of the Špenko-Van den Bergh schober over C^k stratified by a complexified periodic hyperplane arrangement whose complement models both parameter spaces. We obtain a universal deformation of skeletons interpolating variation of parameters."Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2023-08-01The student, Jesse Huang, accepted the attached license on 2021-06-06 at 18:34.The student, Jesse Huang, submitted this Dissertation for approval on 2021-06-07 at 11:46.This Dissertation was approved for publication on 2021-06-15 at 10:46.DSpace SAF Submission Ingestion Package generated from Vireo submission #16639 on 2022-01-12 at 12:51:22Made available in DSpace on 2022-01-12T22:34:38Z (GMT). No. of bitstreams: 2
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Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD systemAuthor requested U of Illinois access only (OA after 2yrs) in Vireo ETD systemU of I Onl
The invisible artist: Arrangers in popular music (1950-2000): Their contribution and techniques
No full textThis thesis was submitted for the degree of Doctor of Philosophy and was awarded by Brunel University.This thesis is based on the research conducted by the author for the series,
Richard Niles' History of Pop Arranging, seven thirty-minute documentary
programmes for BBC Radio 2, researched, written and presented by the author and
broadcast in 2003. It also draws on interviews conducted by the author (and other
research) between 2002 and 2007 both for the radio series and for this thesis and on
the author's experience as a professional arranger in popular music working with
many of the genre's significant recording artists including Paul McCartney, Ray
Charles, Cher, Tina Turner, Westlife, Tears For Fears, Dusty Springfield, James
Brown, Pet Shop Boys, Kylie Minogue and producers including Trevor Hom, Steve
Lipson, Steve Mac and Steve Anderson.
It will be argued that the role of the arranger in popular music has often been
undervalued and that during a critical period of popular music history (1950-2000)
arrangers played a significant part in the evolution of musical content. This thesis is,
to the best of the author's knowledge, the first time (apart from the above mentioned
documentary) the subject has ever been examined. The arranger is "invisible" because musical arrangers are often un-credited on
record liner notes or in books or articles concerning popular music. A considerable
amount of research has been necessary to determine who wrote many of the
arrangements considered herein. Motown's Berry Gordy purposely kept the names of
musicians and arrangers off the records because he feared others might 'poach' the
trademark 'Motown Sound'. Other record labels considered the job of the arranger to
be reminiscent of an earlier era, diluting the Rock 'n' Roll image of emotion and
spontanaeity they wished to promote. Some producers and recording artists disliked
sharing credit for their work. Motown arranger David Van dePitte told the author that
arranging was "thankless and anonymous - a very service-oriented profession where
others often take credit for what you've done." Arranging has therefore remained an
intrinsically unseen art created by 'invisible' artists. By analyzing many recordings,
revealing the techniques and concepts they have used in their work to create popular
records, arrangers and their art will be made more 'visible'
Microbial Regulation of Soil Greenhouse Gas Emissions in a Non-Bloat Legume Grazing System
No full textCattle pastures are a source of greenhouse gas (GHG) emissions, including enteric methane from ruminating cattle, carbon dioxide (CO2), and nitrous oxide (N2O) from microbial respiration of soil carbon (C) and nitrogen (N). Producers may introduce non-bloat legumes to cattle pastures to improve soil N content, increase cattle protein uptake, and decrease enteric methane emissions. However, such land management changes can alter soil microbial communities, potentially increasing net system GHGs. The research goal was to determine whether non-bloat legumes alter soil microbial community structure, activity, and N2O emissions. Grazed pastures with introduced Veldt cicer milkvetch and common sainfoin were surveyed for differences in GHGs, microbial community structure, and extracellular enzyme activity for two growing seasons. Seasonal shifts explained most microbial community changes; however, communities structured according to legume treatment and legume microbial community structure correlated with increasing soil nitrate (NO3-) content, particularly in cicer milkvetch plots. Soil N2O fluxes did not differ on sampling dates, however cicer milkvetch tended towards larger N2O emissions. Pasture soil microbial community changes did not translate to increased N2O emissions on sampling dates. Additional protein found in non-bloat legumes may increase urine urea-N content in cattle affecting soil processes. Urine containing low or high concentrations of 15N and 13C labeled urea was added to soil microcosms under controlled conditions to better understand the impact of urine on soil N2O emissions, microbial N cycling communities, and N2O sources. Ammonia oxidizing bacteria (AOB) were the most active nitrifiers following urine addition. Denitrifiers contributed the most N2O in urine amended soils and their dynamics varied. After urine deposition, nirS gene abundance and transcript increases were greater and more sustained than nirK, while nirK increased activity more rapidly but did not increase gene abundance. Urine toxicity and increased clade II nosZ transcription likely reduced initial N2O emissions at high urea concentrations, resulting in no difference between cumulative soil N2O fluxes between urea rates and a lower urine-N emission factor for high urea soils. These findings support the use of non-bloat legumes in pastures, particularly when considering the potential reduction in enteric methane emissions, reducing net pasture system GHG emissions
Book review : Autobiography of my dead brother. Walter Dean Myers (author) and Christopher Myers (illustrator).
No full textAutobiography of my dead brother portrays the life of teenage Jesse, living in the ganglands of Harlem, downtown New York. As Jesse matures into another anonymous black teenager, he finds his life divided. Childhood friendships, traditional family values and church on the one hand, clash with the demands of 'being in the 'hood', gang warfare, guns and drugs on the other. Walter Dean Myer's graphic novel highlights the daily realities of being a black teenager in the city, and the fear and danger that have to be overcome to stay alive
Stochastic maze solving under the geometric amoebot model
No full textIn this work we give:
a fully-asynchronous, local and distributed stochastic algorithm for collective maze solving under the Geometric Amoebot model of self-organizing particle systems; and
an algorithm to verify phototaxing in arbitrarily large systems given the set of possible configurations are known.This work was accepted to the annual Graduate Research and Creative Works Symposium while the author was a graduate student at Rutgers University-Camden
Santa Clara Magazine, Volume 48 Number 2, Fall 2006
No full text8 - TRUTH, LEGEND, AND JESSE JAMES By Ron Hansen M.A. \u2795. Jesse James\u27 exploits made him a legend even in his own time. Now the author of the novel The Assassination of Jesse James by the Coward Robert Ford reveals what it takes to get beyond coloring book heroes and villains to understanding a charming psychopath and his killer. Plus insights into the making of the forthcoming film starring Brad Pitt and Casey Affleck.
14 - VIOLENCE IN THE MOVIES By Jim Shepard. Movies keep giving us more motion, more mayhem-which is exactly what we want. But what price that desire? 20 - Her Favorite Theatre By George F. Giacomini Jr. \u2756. Actress Helen Hayes once dubbed Santa Clara\u27s Mayer Theatre her alltime favorite. Learn how Fess Parker, the Golden Circle, and the legacy of a Minsk-born son of a junkman conspired to give the performing arts a permanent home on campus.
22 - SAILING IN THE LIFEBOAT By Christopher Bomba \u2774. When Santa Clara\u27s beloved theatre known as The Ship had to be abandoned, the stage players took to The Lifeboat. And made quite a virtue of necessity.
23 - INSIDE THE INDUSTRY By Sarah Stanek. Aspiring to a career in Hollywood? Then here are a few alumni you should know.https://scholarcommons.scu.edu/sc_mag/1006/thumbnail.jp
Micro-Simulation of Social Security Reforms in Belgium
No full textThe present paper analyzes the budgetary impact of various Social Security reforms in the Belgian institutional setting. Our approach relies on parameters that were derived in Dellis et alii (2002) using a micro-modeling strategy. focusing our attention on a hypothetical age cohort, we illustrate the budgetary impact that the reforms considered might have on the budget of the federal government.
An Investigation of the Relationship between Education, Credentials and Knowledge of Personal Trainers and Client Retention
No full textabstract: ABSTRACT
The purpose of this study was two-fold. In Specific Aim One, we examined the associations between education level, personal trainer credentials and characteristics, and knowledge of exercise science and personal training principles. In Specific Aim Two we examined associations between education, personal trainer credentials and knowledge of personal trainers with client retention. This study utilized a cross-sectional research design. An anonymous electronic survey was used to collect the data. Eligible participants (N=226) were individuals who were providing one-on-one personal training services for at least one client. All data were assessed for normality prior to data analysis. Descriptive statistics were used to evaluate sample characteristics. Mean and standard deviations, median and interquartile range [IQR] or frequency and percentages were reported for the sample characteristics. Bivariate associations were examined with dependent t-tests and one-way ANOVAs for normally distributed data. Mann- Whitney U and Kruskal-Wallis tests were used for non-normally distributed variables. The median knowledge score for the sample was 6.0 [3.00] points, out of a possible 24, with 92.5% of the sample scoring 10 or lower. Sex (Male/Female), education level, having a degree in the field, certification status (yes/no) and number of certifications were not associated with knowledge scores (p > 0.05). Years of experience in personal training was positively associated with mean knowledge scores (H(3) = 9.280, p = 0.026). Sex of the personal trainer, having a degree in the field (yes/no), the number of personal trainer certifications, the cost of training, the type of facility, the type of employment of the personal trainer and knowledge scores were not associated with client retention (p > 0.05). Education level (F3,87 = 8.176, p < 0.001), personal training certification (yes/no) (t38 = 2.277, p = 0.029), years of experience (F3, 87 = 3.169, p = 0.028), facility size (F4,84 = 8.049, p < 0.001), and exercise science degree type (F3,48 = 6.008, p = 0.001) were all associated with client retention. This study provides insight on knowledge retention of active personal trainers on subject matter deemed foundational by four certifying organizations. The findings should influence both the preparatory learning and well as continuing education approaches of both certifying organizations and institutions of higher learning.Dissertation/ThesisMasters Thesis Exercise and Wellness 201
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