Studies in the Synthesis of Precursors for Cyclic Phosphorus Compounds

Organic Chemistr

History, Industry, Processing, Uses and Applications of Wood Veneer

Wood veneer may not be used as a school subject, but as related information associated with wood working materials. Today wood veneer is used extensively in the industrial arts prograra and other industrial fields. With its strength and beauty, it has won a never ending place in industry. This report concerns some of the Early Europe, early American, modern and current history of wood veneer. It includes the industry, manufacturing, selling, application and uses. It also tells of some beautiful figures and patterns that can be found in veneer. The advantages of veneering which is very important will also be found in this report. Materials used in this report were secured from books, pamphlets and periodicals obtained from manufacturing companies located in all parts of the United States. Some books were found in the library at Oklahoma State University. Wood veneers are thin sheets of wood usually cut from rare and costly logs. The sheets of veneer are glued to more common woods to increase the strength and add to the appearance. Public taste runs in cycles, reflecting the spirit of the timeso The art of veneering is easily adapted to the changing fashions. Rare woods are not available in large quantities, or if they were, might also be too delicate for solid construction. Modern machinery, enables reputable producers to bring to everyone the articles that once were the luxury of a few. Modern technology plus the use of plastic adhesives, products evolved through chemical research, has opened new frontiers. Today veneer and plywood is used for furniture, pianos, radios, aircraft, watercraft, railway streamliners, trailers, store equipment, elevator cabs, air conditioning units, to an estimated. total for all uses, both decorative and structural, of well over two-thousand.Industrial Arts Educatio

Geodetic constraints on cratonic microplates and broad strain during rifting of thick Southern African lithosphere

Southern Africa is typically considered to belong to a single tectonic plate, Nubia, despite active faulting along the southwestern branch of the East African Rift System. We analyze regional Global Navigation Satellite System (GNSS) measurements, and find that the “San” microplate, situated south of the southwestern branch of the East African Rift, is statistically distinct from Nubia, with 0.4–0.7 mm/yr of extension across the boundary. Adding nine new campaign GNSS sites, we show that the extension rate across the southern Malawi Rift is 2.2 ± 0.3 mm/yr, with 75% of the relative velocity occurring over 890 km, despite the surface expression of faulting being <150 km wide. Thus, for the first time, we use geodetic measurements to describe the accommodation of strain in broad zones between Archean cratons in southern Africa's thick continental lithosphere

Differential Single-stranded DNA Binding Properties of the Paralogous SsbA and SsbB Proteins from Streptococcus pneumoniae

The naturally transformable Gram-positive bacterium Streptococcus pneumoniae has two single-stranded DNA-binding (SSB) proteins, designated SsbA and SsbB. The SsbA protein is similar in size to the well characterized SSB protein from Escherichia coli (SsbEc). The SsbB protein, in contrast, is a smaller protein that is specifically induced during natural transformation and has no counterpart in E. coli. In this report, the single-stranded DNA (ssDNA) binding properties of the SsbA and SsbB proteins were examined and compared with those of the SsbEc protein. The ssDNA binding characteristics of the SsbA protein were similar to those of the SsbEc protein in every ssDNA binding assay used in this study. The SsbB protein differed from the SsbA and SsbEc proteins, however, both in its binding to short homopolymeric dT(n) oligomers (as judged by polyacrylamide gel-shift assays) and in its binding to the longer naturally occurring X and M13 ssDNAs (as judged by agarose gel-shift assays and electron microscopic analysis). The results indicate that an individual SsbB protein binds to ssDNA with an affinity that is similar or higher than that of the SsbA and SsbEc proteins. However, the manner in which multiple SsbB proteins assemble onto a ssDNA molecule differs from that observed with the SsbA and SsbEc proteins. These results represent the first analysis of paralogous SSB proteins from any bacterial species and provide a foundation for further investigations into the biological roles of these proteins

Study V: Mourning Dove Investigations Job No.2. Cooperative Nest Study Job No.3. The Effectiveness of Steel Shot for Hunting Mourning Doves Job No.4. The Potential for and Incidence of Lead Poisoning of Mourning Doves on a Public Hunting Area

Federal Aid in Wildlife Restoration Act Project No. W-49-R-27unpublishednot peer reviewedOpe

Limits on spacetime foam

Plausibly spacetime is "foamy" on small distance scales, due to quantum fluctuations. We elaborate on the proposal to detect spacetime foam by looking for seeing disks in the images of distant quasars and AGNs. This is a null test in the sense that the continued presence of unresolved "point" sources at the milli-arc second level in samples of distant compact sources puts severe constraints on theories of quantized spacetime foam at the Planckian level. We discuss the geometry of foamy spacetime, and the appropriate distance measure for calculating the expected angular broadening. We then deal with recent data and the constraints they put on spacetime foam models. While time lags from distant pulsed sources such as GRBs have been posited as a possible test of spacetime foam models, we demonstrate that the time-lag effect is rather smaller than has been calculated, due to the equal probability of positive and negative fluctuations in the speed of light inherent in such models. Thus far, images of high-redshift quasars from the Hubble Ultra-Deep Field (UDF) provide the most stringent test of spacetime foam theories. While random walk models ($\alpha = 1/2$) have already been ruled out, the holographic ($\alpha=2/3$) model remains viable. Here $\alpha \sim 1$ parametrizes the different spacetime foam models according to which the fluctuation of a distance $l$ is given by $\sim l^{1 - \alpha} l_P^{\alpha}$ with $l_P$ being the Planck length. Indeed, we see a slight wavelength-dependent blurring in the UDF images selected for this study. Using existing data in the {\it Hubble Space Telescope (HST)} archive we find it is impossible to rule out the $\alpha=2/3$ model, but exclude all models with $\alpha<0.65$. By comparison, current GRB time lag observations only exclude models with $\alpha<0.3$

The Lantern Vol. 17, No. 1, Fall 1948

• In the Arms of the Sea • The Expressed Should Be Repressed • Puppy Love • Tommy • How to Eat a Ravioli Dinner • The Divine Blessing • On Thunder • There Is No Hell • Old Love Re-met • Autumn Eve • Dr. Cornelius Weygandthttps://digitalcommons.ursinus.edu/lantern/1046/thumbnail.jp

The Lantern Vol. 17, No. 1, Fall 1948

• In the Arms of the Sea • The Expressed Should Be Repressed • Puppy Love • Tommy • How to Eat a Ravioli Dinner • The Divine Blessing • On Thunder • There Is No Hell • Old Love Re-met • Autumn Eve • Dr. Cornelius Weygandthttps://digitalcommons.ursinus.edu/lantern/1046/thumbnail.jp

Conversation analysis (CA)

Conversation analysis (CA) is an approach to the study of language and social interaction that puts at center stage its sequential development. The chain of initiating and responding actions that characterizes any interaction is a source of internal evidence for the meaning of social behavior as it exposes the understandings that participants themselves give of what one another is doing. Such an analysis requires the close and repeated inspection of audio and video recordings of naturally occurring interaction, supported by transcripts and other forms of annotation. Distributional regularities are complemented by a demonstration of participants' orientation to deviant behavior. CA has long maintained a constructive dialogue and reciprocal influence with linguistic anthropology. This includes a recent convergence on the cross-linguistic and cross-cultural study of social interaction