Register of specialized sources for information on selected fuels and oxidizers

Thirty-eight (38) organizations are listed and described that catalog and file information in their data systems on fuel and oxidizers. The fuels include hydrogen, methane and hydrazine-type fuels; the oxidizers include oxygen, fluorine, flox, nitrogen tetroxide and ozone. The type of available information covers thermophysical properties, propellant systems, propellant fires-control-extinguishment, propellant explosions, propellant combustion, propellant safety, and fluorine chemistry. These organizations have assembled and collated their information so that it will be useful in the solution of engineering problems

A Generative Model of Natural Texture Surrogates

Natural images can be viewed as patchworks of different textures, where the local image statistics is roughly stationary within a small neighborhood but otherwise varies from region to region. In order to model this variability, we first applied the parametric texture algorithm of Portilla and Simoncelli to image patches of 64X64 pixels in a large database of natural images such that each image patch is then described by 655 texture parameters which specify certain statistics, such as variances and covariances of wavelet coefficients or coefficient magnitudes within that patch. To model the statistics of these texture parameters, we then developed suitable nonlinear transformations of the parameters that allowed us to fit their joint statistics with a multivariate Gaussian distribution. We find that the first 200 principal components contain more than 99% of the variance and are sufficient to generate textures that are perceptually extremely close to those generated with all 655 components. We demonstrate the usefulness of the model in several ways: (1) We sample ensembles of texture patches that can be directly compared to samples of patches from the natural image database and can to a high degree reproduce their perceptual appearance. (2) We further developed an image compression algorithm which generates surprisingly accurate images at bit rates as low as 0.14 bits/pixel. Finally, (3) We demonstrate how our approach can be used for an efficient and objective evaluation of samples generated with probabilistic models of natural images.Comment: 34 pages, 9 figure

Cape Verde’s Empresarias: Image and Reality

The West African Republic of Cape Verde was under socialist governance from the time of independence in 1975 until its first multi-party government initiated privatization in 1991. The study examines, as of the mid-90s, the emergent entrepreneurial lives of a small group of young women, their views about their work, and their rejection of traditional women’s roles. This lively group has transformed their public image, used it as an organizing principle for action and modified that of the nation. In their revolt against cultural orthodoxy and assumption of new roles this group’s self- and public images have become transformational. What is an image? What does it do? Where lies the truth and power of images

Artful Journey: An Art Journaling Method for Adults with Physical Disabilities and Progressive Conditions

If given the opportunity to do so, all people have the potential to be creative and engage in artistic expression. In an environment of empathy and support, art therapy interventions can be adapted to be accessible for people of all abilities. There is limited research regarding the uses and possible benefits of art therapy for adults living with physical disabilities. To address this issue, this art therapy method looked at how a group of adults from a day program for people with progressive conditions responded to a series of art journaling interventions titled Artful Journey. Artful Journey was designed to be a flexible art therapy experiential that could be adapted to fit the needs and abilities of all who participated, regardless of their physical abilities. Using a person-centered and strengths-based approach, Artful Journey invited participants to engage in four collaborative art and writing interventions. Social isolation, depression, and increased reliance on others for assistance with activities of daily living are common challenges faced by adults with physical disabilities and progressive conditions. For many, these challenges have been heightened by the effects of the COVID-19 pandemic. The collaborative art and writing projects of Artful Journey were able to help participants maintain peer support in a virtual setting. The multimodal design of Artful Journey also created flexibility that allowed for increased accessibility and the opportunity for deeper exploration of the topics discussed. The participants’ responses to each intervention of Artful Journey also suggests that this collaborative art journaling project helped to facilitate positive emotions, including joy, hope, and strength during challenging times. With this experiential, art journaling was introduced as a potential coping skill for adults with physical disabilities and progressive conditions to continue to utilize as the symptoms of their illnesses progress

Perpetrators, Accomplices, Victims: Further Reflections of Domination as Social Practice

Also CSST Working Paper #85.http://deepblue.lib.umich.edu/bitstream/2027.42/51247/1/481.pd

An Investigation of Random Drug Testing as a Preventative Measure to Inhibit Drug Use in College Students

The problem of drug use exists at most life stages. In particular, the problem of drug use exists in school settings. In a collegiate setting, students are independent from guardians for the first time and subjected to random drug testing (RDT). The difficulty in testing in a collegiate setting is finding ways to test the effectiveness of RDT. This study examined the effectiveness of an RDT program at a small Midwest university. Reports of drug use and attitudes were recorded before a RDT program was initiated and two years after. The results showed the RDT program was ineffective at preventing drug use. Slight increases in drug use and attitude were documented after the initiation of RDT

Electrochemical Studies of Organic and Organometallic Compounds in the Pursuit of Electrocatalytic Carbon Dioxide Reduction

Carbon dioxide is the main contributor to the greenhouse effect in the world today; developing renewable energy sources and addressing anthropogenic CO2 release into the atmosphere are two key ways of addressing its increasing impact. Electrocatalytic reduction to products like methanol or carbon monoxide is one useful path to address the rapid increase of carbon dioxide, and the fac-M(bpy-R)(CO)3X family of complexes (M = Mn or Re; bpy-R = substituted 2,2’-bipyridine; X = Cl, Br, etc.) is one class of effective CO2 reduction catalysts. Although the capability of the rhenium complex Re(PyBimH)(CO)3Cl (PyBimH = 2-(2-pyridyl)benzimidazole) as a CO2 reduction catalyst was previously determined to be minimal, the underlying reasons why were not explained, which is odd when considering that protic sites on the ligand have been shown to increase CO2 reactivity. In this work, we show that the lack of electrocatalytic activity is due to a hydrogen atom transfer reaction that takes place upon reduction. In the process of testing for catalytic activity, a rapid method of determining the effective pKa of acidic species in acetonitrile using cyclic voltammetry was discovered and explored. The pKa of the rhenium complex was estimated through the cyclic voltammetry method to be , in reasonable agreement with DFT calculations. Because determining acidity in non-aqueous solvents is not trivial using established methods, the discovery of a method to accurately estimate the pKa of a species containing an acidic X-H bond is valuable. In addition to the organometallic rhenium complex, organic species buckminsterfullerene (C60) and benzil were explored as viable catalysts for the electrochemical reduction of carbon dioxide. Buckminsterfullerene showed minor electrochemical activity in the presence of carbon dioxide as observed by cyclic voltammetry and infrared spectroelectrochemistry. In this study, cyclic voltammetry and infrared spectroelectrochemistry showed that benzil reduces carbon dioxide at a lower overpotential than C60 and most other electrocatalysts. The production of oxalate from carbon dioxide by action of monoreduced benzil radical has been proposed, in agreement with literature. In the presence of pyridine, reactivity initially showed increased activity but did not show a linear trend in a quantified study of pyridine concentration

Register of hydrogen technology experts

This register presents the names of approximately 235 individuals who are considered experts, or very knowledgeable, in various fields of technology related to hydrogen. Approximately 90 organizations are represented. Each person is listed by organizational affiliation, address, and principal area of expertise. The criteria for selection of names for the register are extensive experience in a given field of work, participation in or supervision of relevant research programs, contributions to the literature, or being recognized as an expert in a particular field. The purpose of the register is to present, in easy form, sources of dependable information regarding highly technical areas of hydrogen technology, with particular emphasis on safety. The register includes two indexes: an alphabetical listing of the experts and an alphabetical listing of the organizations with which they are affiliated

Bem-estar no manejo pré-abate das aves.

bitstream/item/79757/1/Bem-estar-manejo-pre-abate-aves-Engormix.com.pdfProjeto/Plano de Ação: 11.11.11.111

Evaluation of the Social Impact of Reservoir Construction on the Residential Plans of Displaced Persons in Kentucky and Ohio

The states of Kentucky and Ohio have numerous reservoir projects at various stages of planning and construction. Each of the projects produces substantial social impact for the residents of the area and particularly for those persons affected by a loss of property and homes. This impact is not uniform in that people respond differently to displacement and the methods of adjusting relocation are known to differ among people. This research was initiated to develop and test a model for explaining migration under such conditions. The model includes a consideration of people\u27s potential for transferring existing statuses to new residences, the extent to which peoples interests are served by the reservoir, people\u27s knowledge of the reservoir, the social class levels of those displaced and the extent to which people identify with their places of residence. These factors are viewed as affecting people\u27s levels of apprehension and consequently their willingness to separate from their current membership systems. Data for this investigations come from all the adult residents of the areas to be flooded neat Taylorsville, Kentucky and Lebanon, Ohio. These areas are in the Louisville District of the U.S. Army Corps of Engineers and exhibit similar topographies with rural populations of similar socio-economic and social isolation. The testing of this model indicated that apprehensions over money is greatest for those persons who identify strongly with their present homes. Also, apprehension over migration was less for those persons whose vested interests were served by the project. Knowledge of the reservoir project did not reduce apprehensions over moving as was predicted by the model