1,043 research outputs found
Legal Aspects of Allergy
Discussions of allergy have appeared frequently in medical journals and treatises\u27 but only rarely in legal periodicals and treatises. In recent years, however, allergy and problems of hypersensitivity have become increasingly important in law. Whether this is due to the fact that a greater number of persons today are actually allergic because of new products and processes, or whether it is because there is today a better understanding of allergy cannot be categorically stated. Perhaps it would be safe to assume that the increased number of allergy cases is due in some measure to a combination of both causes
The Necessity and Use of Application in the Expository Sermon
The topic chosen for this project is The Necessity and Use of Application in the Expository Sermon. It is this writer\u27s contention that application is the least understood, least used and most abused element of the expository sermon. Application is one of the most necessary elements in the expository sermon, yet remains one of the most overlooked and ignored features of the preaching event. This project will first establish the need for application in the expository sermon, examine methods of application and give comprehensive recommendations for using application in the expository sermon.
The writer\u27s intent is clear; to point out the value of application in the context of the preaching event and to discover and discern the most valuable and practical tools available to use application in the most effective manner. This project will be of valuable use to this preacher as well as all those who desire to connect the never-changing biblical truth to the ever-changing modern world.
The project will begin with a clear description of application in the expository sermon. Definitions will be offered and examples will be given to clearly define the meaning of application in the expository sermon. Next, the Bible will be used to support the use of and call for application in the expository sermon. After a biblically based mandate for application, different methods of application will be studied. A broad sample of preachers from different churches, denominations, areas and levels will be studied to determine the different types of application. Finally, the writer will offer a preferred model for application and point to its value to the preacher and to the hearer
Texas 4-H Membersâ Sense of Community Engagement and Attachment
Previous researchers found that youth in 4-H were four times more likely to actively contribute to their communities, two times more likely to be civically active, and five times more likely to graduate from college than non-4- H members. In addition, youth who were more actively involved in community engagement tended to perform at an increased academic achievement level and were more likely to go to college, according to previous studies. The results of the research reported here described participantsâ community service and engagement activities both in and outside of 4-H and their attachment to their home communities. Respondents were mostly residents of rural areas, farms, or small towns and cities. They were satisfied with where they lived, and they reported that contributing to their community was important to them and believed it made a positive influence on their life. Most participants also indicated that the community in which they lived and the people closest to them were important parts of their lives and contributed positively to their development. By determining current 4-H membersâ level of community attachment, Extension professionals can better understand the influence a community and its stakeholders have in a young personâs leadership development and aspirations
Comparative Cognition: Past, Present, and Future
Comparative cognition is the field of inquiry concerned with understanding the cognitive abilities and mechanisms that are evident in nonhuman species. Assessments of animal cognition have a long history, but in recent years there has been an explosion of new research topics, and a general broadening of the phylogenetic map of animal cognition. To review the past of comparative cognition, we describe the historical trends. In regards to the present state, we examine current âhot topicsâ in comparative cognition. Finally, we offer our unique and combined thoughts on the future of the field
Do Social Conditions Affect Capuchin Monkeysâ (Cebus apella) Choices in a Quantity Judgment Task?
Beran et al. (2012) reported that capuchin monkeys closely matched the performance of humans in a quantity judgment test in which information was incomplete but a judgment still had to be made. In each test session, subjects first made quantity judgments between two known options. Then, they made choices where only one option was visible. Both humans and capuchin monkeyswere guided by past outcomes, as they shifted from selecting a known option to selecting an unknown option at the point at which the known option went from being more than the average rate of return to less than the average rate of return from earlier choices in the test session. Here, we expanded this assessment of what guides quantity judgment choice behavior in the face of incomplete information to include manipulations to the unselected quantity.We manipulated the unchosen set in two ways: first, we showed the monkeys what they did not get (the unchosen set), anticipating that âlossesâ would weigh heavily on subsequent trials in which the same known quantity was presented. Second, we sometimes gave the unchosen set to another monkey, anticipating that this social manipulation might influence the risk-taking responses of the focal monkey when faced with incomplete information. However, neither manipulation caused difficulty for the monkeys who instead continued to use the rational strategy of choosing known sets when they were as large as or larger than the average rate of return in the session, and choosing the unknown (riskier) set when the known set was not sufficiently large. As in past experiments, this was true across a variety of daily ranges of quantities, indicating that monkeys were not using some absolute quantity as a threshold for selecting (or not) the known set, but instead continued to use the daily average rate of return to determine when to choose the known versus the unknown quantity
Synthesis and Properties of Bio-based 3D Printable Resins
A photopolymer resin is a monomer that, when introduced to light of a certain wavelength, starts to polymerize into a solid. This has become a growing part of the 3D printing industry. There have been many advancements in the field of 3D printing, however, a lot of these resins are not environmentally friendly and even harmful if not handled in the correct manner. Plant based resins are becoming more and more popular because of their biodegradability and for the possibility of using renewable resources. Glycerol is a plant-based compound that is produced in excess in industry. Glycerol obtained from bioethanol production as waste and can be used for value-added chemicals. Also, changing the wavelength of light required to polymerize means that researchers are trying to move away from using UV light because it is very harmful to human skin and can even damage a personâs vision. Also, UV light creates ozone as a by-product which can be harmful to the environment. This combination can have multiple real-world applications, not limited to 3D printing. It can possibly be used for gas separation and even polymer batteries.
In this presentation, we converted glycerol based secondary alcohol into photopolymerizable resins. For preliminary studies, we varied the alkyl groups of the secondary alcohol containing ether and photopolymerized with different amounts of crosslinkers. We also used plant-based resin to get 3D printed polymers to see their properties. Finally, our synthesized resins mixed with commercial plant-based resins will be used to get 3D printed structures. Synthesis and characterization of these resins will be shown in the presentation
The use of technology to enhance zoological parks
Technology can be used in a zoological setting to improve visitor experience, increase research opportunities, and enhance animal welfare. Evaluating the quality of these technological innovations and their use by nonhuman and human counterparts is a critical part of extending the uses of technology to enhance animal welfare and visitor experience at zoological parks. Survey data from a small sample of institutions housing primates suggest that computers, television, radio, and sprinklers are the most prevalent types of technological enrichment currently used. Survey respondents were positive about the technology implemented, stating a desire to increase its use. Zoo Biol 30:487â497, 2011. © 2010 Wiley Periodicals, Inc.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/86919/1/20353_ftp.pd
High-precision frequency measurements: indispensable tools at the core of the molecular-level analysis of complex systems
This perspective article provides an assessment of the state-of-the-art in the molecular-resolution analysis of complex organic materials. These materials can be divided into biomolecules in complex mixtures (which are amenable to successful separation into unambiguously defined molecular fractions) and complex nonrepetitive materials (which cannot be purified in the conventional sense because they are even more intricate). Molecular-level analyses of these complex systems critically depend on the integrated use of high-performance separation, high-resolution organic structural spectroscopy and mathematical data treatment. At present, only high-precision frequency-derived data exhibit sufficient resolution to overcome the otherwise common and detrimental effects of intrinsic averaging, which deteriorate spectral resolution to the degree of bulk-level rather than molecular-resolution analysis. High-precision frequency measurements are integral to the two most influential organic structural spectroscopic methods for the investigation of complex materialsâNMR spectroscopy (which provides unsurpassed detail on close-range molecular order) and FTICR mass spectrometry (which provides unrivalled resolution)âand they can be translated into isotope-specific molecular-resolution data of unprecedented significance and richness. The quality of this standalone de novo molecular-level resolution data is of unparalleled mechanistic relevance and is sufficient to fundamentally advance our understanding of the structures and functions of complex biomolecular mixtures and nonrepetitive complex materials, such as natural organic matter (NOM), aerosols, and soil, plant and microbial extracts, all of which are currently poorly amenable to meaningful target analysis. The discrete analytical volumetric pixel space that is presently available to describe complex systems (defined by NMR, FT mass spectrometry and separation technologies) is in the range of 108â14 voxels, and is therefore capable of providing the necessary detail for a meaningful molecular-level analysis of very complex mixtures. Nonrepetitive complex materials exhibit mass spectral signatures in which the signal intensity often follows the number of chemically feasible isomers. This suggests that even the most strongly resolved FTICR mass spectra of complex materials represent simplified (e.g. isomer-filtered) projections of structural space
Chemical and spectroscopic characterization of marine dissolved organic matter isolated using coupled reverse osmosis-electrodialysis
The coupled reverse osmosis-electrodialysis (RO/ED) method was used to isolate dissolved organic matter (DOM) from 16 seawater samples. The average yield of organic carbon was 75 ± 12%, which is consistently greater than the yields of organic carbon that have been commonly achieved using XAD resins, C18 adsorbents, and cross-flow ultrafiltration. UV-visible absorbance spectra and molar C/N ratios of isolated samples were consistent with the corresponding properties of DOM in the original seawater samples, indicating that DOM samples can be isolated using the coupled RO/ED method without any bias for/against these two properties. Five of the samples were desalted sufficiently that reliable measurements of their 13C and 1HNMR spectra and their Fourier transform ion cyclotron resonance (FTICR) mass spectra could be obtained. The 13C and 1HNMR spectra of RO/ED samples differed distinctly from those of samples that have been isolated in much lower yields by other methods. In particular, RO/ED samples contained a relatively lower proportion of carbohydrate carbon and a relatively greater proportion of alkyl carbon than samples that have been isolated using cross-flow ultrafiltration. From the FTICR mass spectra of RO/ED samples, samples from the open ocean contained a much lower proportion of unsaturated compounds and a much higher proportion of fatty acids than coastal samples.This material is based upon work supported by the National Science Foundation (NSF) under Grants No. 0425624 and 0425603.Peer Reviewe
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