Orbiting Lunar Station phase A feasibility and definition study - Condensed summary report Final report

Feasibility and systems definition data for Orbiting Lunar Statio

Production Costs in Atlantic Fresh Fish Processing

Production costs for fresh Atlantic groundfish and scallop processing are examined using direct observation, linear regression analysis, and cost accounting. Assuming that management chooses a production technique where marginal costs are constant over a wide range of production due to management's expectation of predictable and unpredictable variation in product demand and exvessel supply, estimates of marginal cost for nonfish inputs from linear regression results and from cost accounting are compared. Also, regression results for physical yield from fish inputs are compared to estimates from the U.S. Department of Commerce. The similarity in results between these independent forms of estimation supports the maintained hypothesis of constant marginal cost over a wide range of production.Demand and Price Analysis, Environmental Economics and Policy, Food Consumption/Nutrition/Food Safety, Production Economics, Resource /Energy Economics and Policy, Risk and Uncertainty,

Precision of Hubble constant derived using black hole binary absolute distances and statistical redshift information

Measured gravitational waveforms from black hole binary inspiral events directly determine absolute luminosity distances. To use these data for cosmology, it is necessary to independently obtain redshifts for the events, which may be difficult for those without electromagnetic counterparts. Here it is demonstrated that certainly in principle, and possibly in practice, clustering of galaxies allows extraction of the redshift information from a sample statistically for the purpose of estimating mean cosmological parameters, without identification of host galaxies for individual events. We extract mock galaxy samples from the 6th Data Release of the Sloan Digital Sky Survey resembling those that would be associated with inspiral events of stellar mass black holes falling into massive black holes at redshift z ~ 0.1 to 0.5. A simple statistical procedure is described to estimate a likelihood function for the Hubble constant H_0: each galaxy in a LISA error volume contributes linearly to the log likelihood for the source redshift, and the log likelihood for each source contributes linearly to that of H_0. This procedure is shown to provide an accurate and unbiased estimator of H_0. It is estimated that a precision better than one percent in H_0 may be possible if the rate of such events is sufficiently high, on the order of 20 to z = 0.5.Comment: 9 pages, 4 figures, submitted to Phys. Rev. D; new references adde

Fluorescence detection for gel and capillary electrophoresis

Several separation and detection schemes for gel and capillary electrophoresis are described. Emphasis is placed upon direct and indirect fluorescence detection systems as utilized for the determination of proteins, peptides, and intracellular analytes;First, an indirect fluorescence detection system for the separation of proteins via gel electrophoresis is described. Quantities as low as 50 nanograms of bovine serum albumin and soybean trypsin inhibitor are separated and detected visually without the need for staining of the analytes. This is very similar to levels of protein commonly separated with gel electrophoresis;A separation and detection system utilizing indirect fluorescence detection with capillary zone electrophoresis is also demonstrated. Tryptic digest peptide fragments are separated and detected at the 500 attomole level without derivatization via indirect fluorescence detection. Capillary electrophoresis provides efficient separations of 10[superscript]4-10[superscript]5 plates in total separation times of three minutes. Mass detection limits are 180 times lower than comparable CE absorbance detection figures of merit;Finally, a method for analyzing the contents of a single human erythrocyte is described. Both indirect and direct fluorescence detection are used. Indirect fluorescence detection is used to detect femtomole levels of sodium and potassium released from the cytoplasm of a single human erythrocyte lysed within the CE capillary. Direct detection is used to detect attomole quantities of the tripeptide glutathione (GSH) from within the cytoplasm of a single lysed erythrocyte. GSH was derivatized with monobromobimane (mBBr), which is thiol specific. Derivatization is carried out by allowing the bimane reagent to permeate the living cell and derivatize the analyte in vitro. No tedious microchemistry or cell handling was required;Diamide and dithiothreitol were applied to living erythrocytes to modulate the quantity of intracellular GSH present in its reduced form. Single cell analysis was able to detect a statistically significant difference in the mean GSH levels of untreated cell populations, diamide treated cell populations, and diamide and dithiothreitol treated cell populations. All relevant cellular heterogeneity data was also preserved. Diamide and dithiothreitol are commonly used to model the mechanism by which toxic intracellular metabolites decrease GSH levels, thereby increasing cellular susceptibility to intracellular damage, carcinogenesis, and mutagenesis

Alien Registration- Hogan, Thomas L. (New Portland, Somerset County)

https://digitalmaine.com/alien_docs/9293/thumbnail.jp

A comparative study of recruitment and enrollment practices in colleges and universities using integrated marketing communications

A study was conducted to determine if using an integrated marketing communications (IMC) approach to college and university recruitment and enrollment helps institutions better achieve their enrollment goals. This study involved a review of related research, in-depth interviews with education-specific marketing consulting firms, and admissions and marketing professionals at various institutions of higher learning. Primary research involved a 14-item self-administered questionnaire mailed to selected four-year colleges and universities across the country. The questionnaire asked institution executives familiarity and general institutional marketing questions, marketing activity questions, use of IMC, opinion inquiries and demographics. Mean scores through coded responses, frequencies and percentages assessed resulting data. Findings revealed a great deal of attention is devoted to IMC by many institutions. Colleges and universities using an integrated marketing approach to recruitment and enrollment believe their student yield has improved significantly since fully incorporating IMC strategies. Institutions not using an integrated approach to marketing communications feel they are not as successful at enrolling either the number nor the type of students desired for their school

Scales of the Extra Dimensions and their Gravitational Wave Backgrounds

Circumstances are described in which symmetry breaking during the formation of our three-dimensional brane within a higher-dimensional space in the early universe excites mesoscopic classical radion or brane-displacement degrees of freedom and produces a detectable stochastic background of gravitational radiation. The spectrum of the background is related to the unification energy scale and the the sizes and numbers of large extra dimensions. It is shown that properties of the background observable by gravitational-wave observatories at frequencies $f\approx 10^{-4}$ Hz to $10^3$ Hz contain information about unification on energy scales from 1 to $10^{10}$ TeV, gravity propagating through extra-dimension sizes from 1 mm to $10^{-18}$mm, and the dynamical history and stabilization of from one to seven extra dimensions.Comment: 6 pages, Latex, 1 figure, submitted to Phys. Re

Gravitational wave generation from bubble collisions in first-order phase transitions: an analytic approach

Gravitational wave production from bubble collisions was calculated in the early nineties using numerical simulations. In this paper, we present an alternative analytic estimate, relying on a different treatment of stochasticity. In our approach, we provide a model for the bubble velocity power spectrum, suitable for both detonations and deflagrations. From this, we derive the anisotropic stress and analytically solve the gravitational wave equation. We provide analytical formulae for the peak frequency and the shape of the spectrum which we compare with numerical estimates. In contrast to the previous analysis, we do not work in the envelope approximation. This paper focuses on a particular source of gravitational waves from phase transitions. In a companion article, we will add together the different sources of gravitational wave signals from phase transitions: bubble collisions, turbulence and magnetic fields and discuss the prospects for probing the electroweak phase transition at LISA.Comment: 48 pages, 14 figures. v2 (PRD version): calculation refined; plots redone starting from Fig. 4. Factor 2 in GW energy spectrum corrected. Main conclusions unchanged. v3: Note added at the end of paper to comment on the new results of 0901.166

Light-like Signals in General relativity and Cosmology

The modelling of light-like signals in General Relativity taking the form of impulsive gravitational waves and light-like shells of matter is examined. Systematic deductions from the Bianchi identities are made. These are based upon Penrose's hierarchical classification of the geometry induced on the null hypersurface history of the surface by its imbedding in the space-times to the future and to the past of it. The signals are not confined to propagate in a vacuum and thus their interaction with matter (a burst of radiation propagating through a cosmic fluid, for example) is also studied. Results are accompanied by illustrative examples using cosmological models, vacuum space-times, the de sitter univers and Minkowskian space-time.Comment: 21 pages, latex, no figure