We establish an exhaustive catalogue of 42 equivalence classes of bivariate quadratic surfaces in affine n-space. Here two surfaces belong to the same class if they differ only by zero components or by affine transformations of domain and range.

Measurements of the N = 28 isotones 42Si, 43P and 44S using oneand two-proton knockout reactions from the radioactive beam nuclei 44S and 46Ar are reported. The knockout reaction cross sections for populating 42Si and 43P and a 184 keV γ-ray observed in 43P establish that the d3/2 and s1/2 proton orbits are nearly degenerate in these nuclei and that there is a substantial Z = 14 subshell closur...

Polyunsaturated aldehydes (PUAs) are organic compounds mainly produced by diatoms, after cell wounding. These compounds are increasingly reported as teratogenic for species of grazers and deleterious for phytoplanktonic species, but there is still scarce information regarding concentration ranges and the composition of PUAs in the open ocean. In this study, we analyzed the spatial distribution ...

Several species of β-amyloid peptides (Aβ) exist as a result of differential cleavage from amyloid precursor protein (APP) to yield various C-terminal Aβ peptides. Several N-terminal modified Aβ peptides have also been identified in Alzheimer's disease (AD) brains, the most common of which is pyroglutamate-modified Aβ (AβpE3-42). AβpE3-42 peptide has an increased propensity to aggregate, appear...

The transverse polarization transfer coefficient K~ has been measured for the reaction 'H(d, n)pp at 0 for Ed —42. 8 MeV as a function of breakup neutron energy. For the high-energy neutrons (E„&28 MeV) the average value for E~ is close to 0.6, in conformity with the prediction of a simple stripping or spectator model for polarization transfer in deuteron stripping reactions. Good agreement is ...

A total of 288 broiler chickens (1 d old) were used in a 42-d growth trial to study the effects of chicory (Cichorium intybus) and nettle (Urtica dioica) with or without multi-enzyme on growth performance, carcass traits, and biochemical parameters. The corn-soybean based control diet and 8 experimental diets were fed to each of 3 pens of chickens (12 chickens/pen). Treatments were as follows: ...

Atmospheric carbon dioxide concentration [CO2] will increase in the future and will affect global climate and ecosystem productivity. Crop models used in past assessments of climate change effect on ecosystem productivity have not been adequately tested for the ability to simulate ecosystem responses to [CO2]. Our objective was to evaluate the ability of the default CROPGRO–Soybean model to pre...