The physical and chemical properties of human sweat and factors affecting the water balance in confined spaces Final report, 1 Jul. 1965 - 30 Jun. 1968

Physical and chemical properties of human sweat and factors affecting water balance in confined space

The Physical and Chemical Properties of Human Sweat and Factors Affecting the Water Balance in Confined Spaces Semiannual Status Report No. 2, 1 Jan. - 30 Jun. 1966

Physical and chemical properties of human sweat and factors affecting water balance in confined space

The contribution of starbursts and normal galaxies to infrared luminosity functions at z < 2

We present a parameter-less approach to predict the shape of the infrared (IR) luminosity function (LF) at redshifts z < 2. It requires no tuning and relies on only three observables: (1) the redshift evolution of the stellar mass function for star-forming galaxies, (2) the evolution of the specific star formation rate (sSFR) of main-sequence galaxies, and (3) the double-Gaussian decomposition of the sSFR-distribution at fixed stellar mass into a contribution (assumed redshift- and mass-invariant) from main-sequence and starburst activity. This self-consistent and simple framework provides a powerful tool for predicting cosmological observables: observed IR LFs are successfully matched at all z < 2, suggesting a constant or only weakly redshift-dependent contribution (8-14%) of starbursts to the star formation rate density. We separate the contributions of main-sequence and starburst activity to the global IR LF at all redshifts. The luminosity threshold above which the starburst component dominates the IR LF rises from log(LIR/Lsun) = 11.4 to 12.8 over 0 < z < 2, reflecting our assumed (1+z)^2.8-evolution of sSFR in main-sequence galaxies.Comment: 7 pages, 4 figures & 1 table. Accepted for publication in ApJL. Minor typos corrected in v2 following receipt of proof

Effect of disorder on transport properties in a tight-binding model for lead halide perovskites

The hybrid organic-inorganic lead halide perovskite materials have emerged as remarkable materials for photovoltaic applications. Their strengths include good electric transport properties in spite of the disorder inherent in them. Motivated by this observation, we analyze the effects of disorder on the energy eigenstates of a tight-binding model of these materials. In particular, we analyze the spatial extension of the energy eigenstates, which is quantified by the inverse participation ratio. This parameter exhibits a tendency, and possibly a phase transition, to localization as the on-site energy disorder strength is increased. However, we argue that the disorder in the lead halide perovskites corresponds to a point in the regime of highly delocalized states. Our results also suggest that the electronic states of mixed-halide materials tend to be more localized than those of pure materials, which suggests a weaker tendency to form extended bonding states in the mixed-halide materials and is therefore not favourable for halide mixing.Comment: 24 pages (preprint), 11 figure

Dedication Week at Hebron

Opening paragraph: The country is the ideal location for a Christian academy. More especially is this true in the present day, when the unhealthy tendency is so irrestibly toward the pilin up of the population in the great cities. Hebron Academy, three miles from the railway station in West Minot, on one of the high hill summits of Oxford County, Maine, with the White Mountain range and Mt. Washington in full view forty-five miles away, could not be more beautifully situated.https://digicom.bpl.lib.me.us/books_pubs/1170/thumbnail.jp

Terrestrial Isopods of Minnesota

Eight species of terrestrial isopods (sub-order Oniscoidea) were collected in Minnesota. Six of them had not been recorded previously. Observations on habitat, distribution, size and coloration were noted. An analytical key to the species within the state is included

Alien Registration- Sargent, Margert E. (Bangor, Penobscot County)

https://digitalmaine.com/alien_docs/10978/thumbnail.jp