Optical crossed-beam investigation of local sound generation in jets

Cross correlation of optical signals from two light beam sound detectors for jet noise source localizatio

Genetic Variation in Resistance of Scotch Pine to Zimmerman Pine Moth

(excerpt) Scotch pine (Pinus sylvestris L.), a forest tree introduced from Eurasia, is commonly planted for Christmas tree and timber use in northeastern United States. In this country it has numerous insect enemies. Among the most important are European pine shoot moth, Rhyacionia buoliana (Schiffermiieller); pine root collar weevil, Hylobius radicis Buchanan;,European pine sawfly, Neodiprion sertifer (Geoffroy); and eastern white-pine shoot borer, Eucosma gloriola Heinrich. Previous studies (Wright et al., 1967; Wright and Wilson, 1972; Steiner, 1974) have revealed large genetic differences in resistance to some of these pests. Another destructive pest is the Zimmerman pine moth, Dioryctria zimmermani (Grote). In 1968 this insect, native to the United States, was found attacking trees in a Scotch pine provenance test in southwestern Michigan. The attack rate was heavy and by 1973 it was obvious that some rams or varieties were attacked more heavily than others. This is a report on those differences

Optimization of field-dependent nonperturbative renormalization group flows

We investigate the influence of the momentum cutoff function on the field-dependent nonperturbative renormalization group flows for the three-dimensional Ising model, up to the second order of the derivative expansion. We show that, even when dealing with the full functional dependence of the renormalization functions, the accuracy of the critical exponents can be simply optimized, through the principle of minimal sensitivity, which yields $\nu = 0.628$ and $\eta = 0.044$.Comment: 4 pages, 3 figure

Effect of SP- 36 Fertilizer and Cow Manure on the Growth and Yield of Barley OrJagaq (Setaria Italica L.).

The research objectives were: (1) to determine the effect SP-36 fertilizer and cow manure as well as their interaction on the growth and yield of barley; and (2) to obtain appropriate dosages of SP-36 fertilizers and cow manure to obtain better yield of Barley.The research was conducted from February to June 2015 in Sekolaq Darat village, sub district of Sekolaq Darat, West Kutai Regency.It applied 4 x 3 factorial experiment in a Randomized Block Design (RBD) with three replications. The first factor was the dose of SP 36 fertilizer (P) which comprises two levels, namely: no SP-36fertilizer application or control (po), 60 gr/crop (p1) and 120 gr/crop(p2). The second factor was the dose of cow manure (T) consisting of three levels, namely: no cow manure application (to), 500 gr/crop (t1), 750 gr/crop (t2) and 1000 gr/crop(t3). Data analysis used analysis of variance (Anova) and advanced test by using with the Least Significant Difference (LSD) at level of 5%.Result of the reseach showed that: SP-36 fertilizer affected significantly to highly significant on the plant height at the age of 25, 50, 75, and 100 days after planting,number of tiller/cluster and production. The highest yield was attained at the treatment 120 gr/cropSP- 36 fertilizer (p2) namely 0,29. ,meanwhile the lowest one was at the no SP- 36 fertilizer application at SP-36 (po), namely 0.27Effect of cow manure was highly significant on the plant height at 25, 50, 75, and 100 days after planting and number of tiller/cluster. The highest production was attained at the treatment of 1000 gr/crop(t3) namely 0,28meanwhile the lowest one was at the treatment of no manure application(to),namely 0,30.Effect of interaction between SP-36fertilizer and cow manure was significantly different on the plant height at 50, 75 and 100 days after planting, number of tiller/cluster, but it did not affect significantly on the plant height at 25 days after planting and crop production

Factorization fits to charmless strangeless B decays

We present fits to charmless strangeless hadronic B decay data for mean branching ratios and CP-violating asymmetries using the QCD factorization model of Beneke et al. Apart from one CP-violating parameter, the model gives a very good representation of 26 measured data. We find the CKM angle alpha = (93.5 +/- 8.4 -1.3) degrees and to be quite stable to plausible "charming penguin" corrections.Comment: 4 pages, LaTeX, Minor changes to text, references adde

Nestling diet, secondary sexual traits and fitness in the zebra finch

We examined the effect of nestling diet quality on a suite of physiological, morphological and life-history traits in adult male zebra finches,Taeniopygia guttata. Compared with birds reared on a supplemented diet, nestlings reared on a seed-only diet showed a reduced rate of growth and reduced cell-mediated immune function as measured by an in vivo response to aT lymphocyte-dependent mitogen. There were no differences between birds reared on the two diets in any of the following adult traits: body size, primary sexual traits (testes mass, numbers of stored sperm, sperm function, velocity and morphology), secondary sexual traits (beak colour and song rate), serological traits or immunological traits. The only differences we detected were a lower body mass and a greater proportion of individuals with plumage abnormalities among those reared on a seed-only diet (this latter effect was transient). The fact that male zebra finches reared on a seed-only diet were, as adults, virtually indistinguishable from those reared on a supple- mented diet, despite having reduced growth and immune function as nestlings, demonstrates that they subsequently compensated through the di¡erential allocation of resources. Our results indicate that differ- ential allocation is costly in terms of fitness since birds reared on a seed-only diet experienced a significantly greater mortality rate than those reared on a supplemented diet. This in turn suggests the existence of a trade-of between the development of traits important for reproduction, such as primary and secondary sexual traits and longevity

RISK PERCEPTIONS AND MANAGEMENT RESPONSES: PRODUCER-GENERATED HYPOTHESES FOR RISK MODELING

Farm level risk analyses have used price and yield variability almost exclusively to represent risk. Results from a survey of 149 agricultural producers in 12 states indicate that producers consider a broader range of sources of variability in their operations. Significant differences exist among categories with respect to the importance of the sources of variability in crop and livestock production. Producers also used a variety of management responses to variability. There were significant difference among categories in the importance given to particular responses and their use of them. These results have implications for research, extension, and policy programs.Risk and Uncertainty,