13,407 research outputs found
Heterothallic species of Neurospora are distinguishable by restriction analysis of their nuclear r-DNA sequences.
Heterothallic species of Neurospora are distinguishable by restriction analysis of their nuclear rDNA sequences
The psychological toll of prostate cancer
© 2018, Springer Nature Limited. Matta et al. report that men with prostate cancer who underwent surgery or radiotherapy, but not active surveillance, had greater odds of receiving antidepressants than controls. However, methodological limitations preclude the interpretation of a psychological benefit for men on active surveillance. Screening for distress and referral to evidence-based intervention should be a priority
Exposure to liquid sweetness in early childhood:artificially-sweetened and sugar-sweetened beverage consumption at 4â5Â years and risk of overweight and obesity at 7â8Â years
Background:
A significant gap exists in longitudinal evidence on early exposure to artificially sweetened beverages (ASBs) and weight outcomes for paediatric populations.
Objective:
The objective of this study is to examine the relationship between ASB/sugarâsweetened beverage (SSB) consumption at 4â5 years and risk of overweight and obesity at 7â8 years.
Methods:
Data from a nationally representative cohort (n = 2986) in Scotland were analysed using logistic regression to evaluate the association between exposure to ASBs/SSBs at 4â5 years and risk of overweight and obesity at 7â8 years.
Results:
There were positive unadjusted associations between ASB consumption and risk of obesity, and following adjustment for confounders, ASB associations attenuated, and only the middle consumption category (1 to 6 times per week) remained significant (odds ratio 1.57, 95% confidence interval {CI} 1.05â2.36). For SSB consumption, there were no significant unadjusted associations, and following adjustment for confounders, only the middle consumption category was significant (odds ratio 1.65, 95% CI 1.12â2.44). There were no significant associations for risk of overweight.
Conclusions:
Longitudinal analysis from 4â5 to 7â8 years demonstrated some evidence of associations between ASBs/SSB consumption and risk of obesity. However, nonâlinear patterns and wide CIs suggest cautious interpretation and need for future studies with longâterm followâup
Role of charge carriers for ferromagnetism in cobalt-doped rutile TiO2
Electric and magnetic properties of a high temperature ferromagnetic oxide
semiconductor, cobalt-doped rutile TiO2, are summarized. The cobalt-doped
rutile TiO2 epitaxial thin films with different electron densities and cobalt
contents were grown on r-sapphire substrates with laser molecular beam epitaxy.
Results of magnetization, magnetic circular dichroism, and anomalous Hall
effect measurements were examined for samples with systematically varied
electron densities and cobalt contents. The samples with high electron
densities and cobalt contents show the high temperature ferromagnetism,
suggesting that charge carriers induce the ferromagnetism.Comment: 14 pages, 12 figure
Galaxy Interactions in Compact Groups II: abundance and kinematic anomalies in HCG 91c
Galaxies in Hickson Compact Group 91 (HCG 91) were observed with the WiFeS
integral field spectrograph as part of our ongoing campaign targeting the
ionized gas physics and kinematics inside star forming members of compact
groups. Here, we report the discovery of HII regions with abundance and
kinematic offsets in the otherwise unremarkable star forming spiral HCG 91c.
The optical emission line analysis of this galaxy reveals that at least three
HII regions harbor an oxygen abundance ~0.15 dex lower than expected from their
immediate surroundings and from the abundance gradient present in the inner
regions of HCG 91c. The same star forming regions are also associated with a
small kinematic offset in the form of a lag of 5-10 km/s with respect to the
local circular rotation of the gas. HI observations of HCG 91 from the Very
Large Array and broadband optical images from Pan-STARRS suggest that HCG 91c
is caught early in its interaction with the other members of HCG 91. We discuss
different scenarios to explain the origin of the peculiar star forming regions
detected with WiFeS, and show that evidence point towards infalling and
collapsing extra-planar gas clouds at the disk-halo interface, possibly as a
consequence of long-range gravitational perturbations of HCG 91c from the other
group members. As such, HCG 91c provides evidence that some of the
perturbations possibly associated with the early phase of galaxy evolution in
compact groups impact the star forming disk locally, and on sub-kpc scales.Comment: 25 pages, 21 figures, MNRAS accepted. Until publication of the
article, the interactive component of Figure 4 is available at this URL:
http://www.mso.anu.edu.au/~fvogt/website/misc.htm
Cloning of the rDNA repeat unit: An EcoRI fragment spanning the entire nontranscribed spacer region of Neurospora crassa wild type strain 74A
Cloning of the rDNA repeat unit: An EcoRI fragment spanning the entire nontranscribed spacer region of Neurospora crassa wild type strain 74
Comparison of nuclear DNA with whole cell DNA isolated from Neurospora crassa
Comparison of nuclear DNA with whole cell DNA isolated from Neurospor
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