Action spectra for the assimilation of nitrate and nitrite have been obtained for several blue-green algae (cyanobacteria) with different accessory pigment composition. The action spectra for both nitrate and nitrite utilization by nitrate-grown Anacystis nidulans L-1402-1 cells exhibited a clear peak at about 620 nanometers, corresponding to photosystem II (PSII) C-phycocyanin absorption, the ...

cerium oxide (ceo2) or ceria has been shown to be an interesting support material for noble metals in catalysts designed for emission control, mainly due to its oxygen storage capacity. ceria nanoparticles were prepared by precipitation method. the precursor materials used in this research were cerium nitrate hexahydrate (as a basic material), potassium carbonate and potassium hydroxide (as pre...

We provide computationally convenient expressions for all marginal distributions of the polarization cosmic microwave background (CMB) power spectrum distribution P (C |σ ), where C = { CTT , C TE , C EE , C BB } denotes the set of ensemble-averaged polarization CMB power spectra, and σ = { σ TT , σ TE , σ EE , σ BB } the set of the realization-specific polarization CMB power spectra. This dist...

PURPOSE The goal of this study was the early diagnosis of ABCB11 spectrum liver disorders, especially those focused on benign recurrent intrahepatic cholestasis and progressive familial intrahepatic cholestasis. METHODS Fifty patients presenting neonatal cholestasis were evaluated to identify underlying etiologies. Genetic analysis was performed on patients suspected to have syndromic disease...

We have determined the relationship between carbon-specific photosynthesis and phytoplankton cell size in a coastal ecosystem. The normalized size spectra of carbon (C) biomass and photosynthesis allow to determine both biomass and photosynthesis within any size class along the community size spectrum. By dividing the size spectra of photosynthesis and biomass, the size spectrum of C-specific p...

Spectrum is a valuable, scarce and finite natural resource that is needed for many different applications, so efficient use of the scarce radio spectrum is important for accommodating the rapid growth of wireless communications. Spectrum auctions are one of the best-known market-based solutions to improve the efficiency of spectrum use. However, Spectrum auctions are fundamentally differen...

GSN 069 is an ultra-soft X-ray active galactic nucleus that previously exhibited a huge outburst and subsequent long-term decay. It has recently presented quasi-periodic eruptions (QPEs). We report the detection of strong nitrogen lines but weak or undetectable carbon in its far ultraviolet spectrum. With detailed photoionization model, we use C IV/N IV] ratio other ratios between to constrain ...

Energy spectra of fullerene C 50 and exohedral Cl 10 with the D 5h symmetry groups have been obtained within Hubbard model static fluctuation approximation. The energy states classified using methods group theory, allowed transitions in molecules determined. On basis spectrum is given an interpretation experimentally observed optical absorption bands molecule . Keywords: model, Green's function...

Carbon dots (C-dots) represent an emerging class of nontoxic nanoemitters that show excitation wavelength-dependent photoluminescence (PL) with high quantum yield (QY) and minimal photobleaching. The vast majority studies focus on C-dots exhibit the strongest PL emissions in blue/green region spectrum, while longer wavelength are ideal for applications such as bioimaging, photothermal photodyna...

Vacuum UV circular dichroism (CD) spectra were measured down to 175 nm for d(C)10, d(G)10, the d(G)10.d(C)10 duplex, and the d(G)10.d(G)10.d(C)10 triplex. A CD difference spectrum was calculated for d(G)10.d(C)10 giving the change in CD induced by forming the duplex from d(G)10 and d(C)10. The d(G)10.d(G)10.d(C)10 CD difference spectrum gave the CD induced by triplex formation from binding of d...