5,039 research outputs found
Genealogical and family history of the state of New Hampshire : a record of the achievements of her people in the making of a commonwealth and the founding of a nation. Vol. I
Paged continuously.; Spine title: Genealogy New Hampshire.; Includes index
Describing the Buckle Up program efforts to support child well-being in Oklahoma : exploring potential connections between child motor vehicle injuries, fatalities, certification status, and Buckle Up events.
In 1997 Safe Kids Worldwide and General Motors Corporation founded the Buckle Up program. The program trains and certifies individuals to become service providers whose job is to obtain the knowledge and skills on the proper techniques to install safety seats for children, and how to share that knowledge with families. Buckle Up is an important program since the leading cause of death among children ages 2 to 14 is in a motor vehicle crash. Trainings, car seat checkup events, and advocacy influence the way the environment affects child passenger safety. Advocacy opens the doors for strengthening the need to update laws since motor vehicle crashes continue to lead as a primary cause of death in children. The research will take a descriptive approach to review and compile available data to determine any associations between the Buckle Up program and the number of injuries and fatalities in Oklahoma between 2007 and 2011. Research will also utilize Urie Bronfenbrenner's Human Ecology Theory to examine hoe the Buckle Up program has been involved in the environment. Data were collected and reviewed by a Child Passenger Safety Technician and Instructor, active in the field since 2007. The analysis was made from a non-biased perspective with interest in understanding how educational efforts were contributing to the Oklahoma child occupant outcomes
Burner rig corrosion of SiC at 1000 deg C
Sintered alpha-SiC was examined in both oxidation and hot corrosion with a burner rig at 400 kPa (4 atm) and 1000 C with a flow velocity of 310 ft/sec. Oxidation tests for times to 46 hr produced virtually no attack, whereas tests with 4 ppm Na produced extensive corrosion in 13-1/2 hr. Thick glassy layers composed primarily of sodium silicate formed in the salt corrosion tests. This corrosion attack caused severe pitting of the silicon carbide substrate which led to a 32 percent strength decrease below the as-received material. Parallel furnace tests of Na2SO4/air induced attacked yielded basically similar results with some slight product composition differences. The differences are explained in terms of the continuous sulfate deposition which occurs in a burner rig
High temperature environmental effects on metals
The gas turbine engine was used as an example to predict high temperature environmental attack on metals. Environmental attack in a gas turbine engine derives from high temperature, combustion products of the air and fuel burned, and impurities. Of all the modes of attack associated with impurity effects, hot corrosion was the most complicated mechanistically. Solutions to the hot corrosion problem were sought semi-empirically in: (1) improved alloys or ceramics; (2) protective surface coating; (3) use of additives to the engine environment; and (4) air/fuel cleanup to eliminate harmful impurities
History of the town of Rindge, New Hampshire, from the date of the Rowley Canada or Massachusetts charter, to the present time, 1736-1874, with a genealogical register of the Rindge families.
Genealogical register : p. [419]-775
The Stadium Interstate Freeway and Cedarburg Bog
Although the initially favored corridor for the Stadium interstate freeway was adjacent to Cedarburg Bog, the highway department is now favoring a route at least a mile from the Bog. Many different individuals had written highway officials stressing the scientific, educational and recreational value of the Bog. It is appropriate that the highway officials of a state which has been a leader in preserving natural areas for scientific and educational use should show concern with preserving Cedarburg Bog as a wilderness area. A hearing about the proposed route will be held July 10 in Ozaukee County, and testimony will be presented stressing the value of the Bog and the importance of not having a highway in close proximity
Recommended from our members
Stereocontrolled enantioselective total synthesis of the [2+2] quadrigemine alkaloids
Abstract A unified strategy for enantioselective total synthesis of all stereoisomers of the [2+2] family of quadrigemine alkaloids is reported. In this approach, two enantioselective intramolecular Heck reactions are carried out at the same time on precursors fashioned in four steps from either meso- or (+)-chimonanthine to form the two critical quaternary carbons of the peripheral cyclotryptamine rings of these products. Useful levels of catalyst control are realized in either desymmetrizing a meso precursor or controlling diastereoselectivity in elaborating C2-symmetric intermediates. None of the synthetic quadrigemines are identical with alkaloids isolated previously and referred to as quadrigemines A and E. In addition, we report improvements in our previous total syntheses of (+)- or (-)-quadrigemine C that shortened the synthetic sequence to 10 steps and provided these products in 2.2% overall yield from tryptamine
Economics of Establishing a Beef Cattle Feedlot Using By-Products of Ethanol Production in North Dakota
Production Economics, Resource /Energy Economics and Policy, Agribusiness,
Phenotypic plasticity for life-history traits in Drosophila melanogaster. III. Effect of the environment on genetic parameters
We estimated genetic and environmental variance components for developmental time and dry weight at eclosion in Drosophila melanogaster raised in ten different environments (all combinations of 22, 25 and 28°C and 0·5, 1 and 4% yeast concentration, and 0·25% yeast at 25°C). We used six homozygous lines derived from a natural population for complete diallel crosses in each environment. Additive genetic variances were consistently low for both traits (h2 around 10%). The additive genetic variance of developmental time was larger at lower yeast concentrations, but the heritability did not increase because other components were also larger. The additive genetic effects of the six parental lines changed ranks across environments, suggesting a mechanism for the maintenance of genetic variation in heterogenous environments. The variance due to non-directional dominance was small in most environments. However, there was directional dominance in the form of inbreeding depression for both traits. It was pronounced at high yeast levels and temperatures but disappeared when yeast or temperature were decreased. This meant that the heterozygous flies were more sensitive to environmental differences than homozygous flies. Because dominance effects are not heritable, this suggests that the evolution of plasticity can be constrained when dominance effects are important as a mechanism for plasticit
Sporadic Bovine Encephalomyelitis
The infectious agent of sporadic bovine encephalomyelitis has now been propagated for nearly three years in developing chick embryos.This has afforded a convenient method of propagation while studying the causal agent. It is interesting that during all of this time in chick embryos, which represents more than 135 passages in series, there has been no apparent variation in the character of the infectious agent. It is as pathogenic for guinea pigs and cattle as when first isolated. Failure to recognize anything in the tissues of affected animals that would indicate the exact nature of the entity which causes the disease, led to an extension of the histological study to infected chick embryos, especially their membranes and yolk sacs
- …