Hypersonic research engine project. Phase 2A - Hastelloy-X annealing and chemical milling evaluation, 3 February 1967 - 30 June 1968

Cold work and heat treatment effects on Hastelloy X grain size and propertie

The assimilation of the Japanese in and around Stockton

The problem of\u27 the Japanese in California has been prominent since the opening of the twentieth century. Much has been written in an attempt to help solve the problem. Yet the general trends of the writings prior to the Johnson Immigration Law of 1924 were to deal with the Japanese just coming into California rather than with those who were born here or had established permanent residence. Yet after the Immigration Law went into effect the problem of preventing undesirable Japanese from entering California became extinct. The problem no longer centers around exclusion but rather around inclusion . In short the problem has changed from immigration to Americanization and assimilation. The Japanese who were born in California or any other part or the United States are as truly American citizens as anyone and are entitled Lo share the full benefits of government. But in the true sense of the word if they are to be and remain good citizens, they must not only be acquainted with the American Government but with American customs, American ideals, and with the American language . In short, the Japanese must be in a certain sense assimilated. The purpose of this study is to find out if the younger generation of Japanese are really becoming assimilated, which in turn will largely determine the kind of citizens they will be when grown. I have chosen the school primarily as a laboratory for this study with the home and the church closely allied

Evaluating the long-term storage of Cryphonectria parasitica

Isolates of the Chestnut blight pathogen, Cryphonectria parasitica, from six populations in Michigan, were stored in the late 1990s as agar plugs of mycelium in vials of sterile water held at room temperature. Approximately 29% of the fungal isolates were infected with mycoviruses at the time of storage. Each isolate was tested for revivification effectiveness by taking aliquots from vials filled with agar plugs of C. parasitica and sterile water and plating onto potato dextrose agar. Average revivification success was 70.5% across populations with a range of 33—84% within populations. In situations where vials had dried out during storage, success was low (4%), while success for vials that retained sterile water averaged 90%. Most importantly however, is the loss of mycoviruses from stored isolates; only 2 of 119 stored mycovirus infected isolates still contained mycoviruses after storage, suggesting that the double-stranded RNA mycoviruses are degraded during storage

Human resource allocation management in multiple projects using sociometric techniques

This article describes a new application of key psychological concepts in the area of Sociometry for the selection of workers within organizations in which projects are developed. The project manager can use a new procedure to determine which individuals should be chosen from a given pool of resources and how to combine them into one or several simultaneous groups/projects in order to assure the highest possible overall work efficiency from the standpoint of social interaction. The optimization process was carried out by means of matrix calculations performed using a computer or even manually, and based on a number of new ratios generated ad-hoc and composed on the basis of indices frequently used in Sociometry

Recent advances in understanding the roles of whole genome duplications in evolution

Ancient whole-genome duplications (WGDs)—paleopolyploidy events—are key to solving Darwin’s ‘abominable mystery’ of how flowering plants evolved and radiated into a rich variety of species. The vertebrates also emerged from their invertebrate ancestors via two WGDs, and genomes of diverse gymnosperm trees, unicellular eukaryotes, invertebrates, fishes, amphibians and even a rodent carry evidence of lineage-specific WGDs. Modern polyploidy is common in eukaryotes, and it can be induced, enabling mechanisms and short-term cost-benefit assessments of polyploidy to be studied experimentally. However, the ancient WGDs can be reconstructed only by comparative genomics: these studies are difficult because the DNA duplicates have been through tens or hundreds of millions of years of gene losses, mutations, and chromosomal rearrangements that culminate in resolution of the polyploid genomes back into diploid ones (rediploidisation). Intriguing asymmetries in patterns of post-WGD gene loss and retention between duplicated sets of chromosomes have been discovered recently, and elaborations of signal transduction systems are lasting legacies from several WGDs. The data imply that simpler signalling pathways in the pre-WGD ancestors were converted via WGDs into multi-stranded parallelised networks. Genetic and biochemical studies in plants, yeasts and vertebrates suggest a paradigm in which different combinations of sister paralogues in the post-WGD regulatory networks are co-regulated under different conditions. In principle, such networks can respond to a wide array of environmental, sensory and hormonal stimuli and integrate them to generate phenotypic variety in cell types and behaviours. Patterns are also being discerned in how the post-WGD signalling networks are reconfigured in human cancers and neurological conditions. It is fascinating to unpick how ancient genomic events impact on complexity, variety and disease in modern life