Abstract Background About 30 % of vegetables in China are produced intensively managed greenhouses comprising flood irrigation and extreme rates nitrogen fertilizers. Little is known about denitrification N losses. Methods Soil were measured by the acetylene inhibition technique applied to anaerobically incubated soil samples. Four different greenhouse management systems differentiated: Convent...

Resolution of chromosome dimers, by site-specific recombination between dif sites, is carried out in Escherichia coli by XerCD recombinase in association with the FtsK protein. We show here that a variety of altered FtsK polypeptides, consisting of the N-terminal (cell division) domain alone or with deletions in the proline-glutamine-rich part of the protein, or polypeptides consisting of the C...

To date, the statistical software designed for assessing differential item functioning (DIF) with Mantel-Haenszel procedures has employed the following statistics: the Mantel-Haenszel chi-square statistic, the generalized Mantel-Haenszel test and the Mantel test. These statistics permit detecting DIF in dichotomous and polytomous items, although they limit the analysis to two groups. On the con...

Aim This study tested the construct validity (i.e., factor structure) of Persian Mindful Attention Awareness Scale (MAAS) on a sample male prisoners. Methods All participants (mean±SD age = 39.44±7.94 years) completed three scales—the MAAS, Insomnia Severity Index (ISI), and 12-item General Health Questionnaire (GHQ-12). Confirmatory analysis (CFA) Rasch with differential item functioning (DIF)...

High frequency oscillations (HFOs) are estimated as a potential marker for epileptogenicity. Current research strives for valid evidence that these HFOs could aid the delineation of the to-be resected area in patients with refractory epilepsy and improve surgical outcomes. In the present meta-analysis, we evaluated the relation between resection of regions from which HFOs can be detected and ou...

Inter-group comparisons using the EQ-5D, or any self-reported measure of health, rely on the measure being an accurate reflection of the true health of the groups or individuals concerned. However, responses to questions on subjective scales, such as those used in the EQ-5D, will be inaccurate if groups of individuals systematically differ in their use of the response categories, a phenomenon k...

Expression of the nuclear receptor interacting factor 3 (NRIF3) coregulator in a wide variety of breast cancer cells selectively leads to rapid caspase-2-dependent apoptotic cell death. A novel death domain (DD1) was mapped to a 30-amino acid region of NRIF3. Because the cytotoxicity of NRIF3 and DD1 seems to be cell type-specific, these studies suggest that breast cancer cells contain a novel ...

Vibrio cholerae, the etiological agent of acute diarrhoeal disease cholera, harbors large numbers of lysogenic filamentous phages, contribute significantly to the host pathogenesis and provide fitness factors to the pathogen that help the bacterium to survive in natural environment. Most of the vibriophage genomes are not equipped with integrase and thus exploit two host-encoded tyrosine recomb...

At least three distinct types of cell arise from a population of similar amoebae during Dictyostelium development: prespore, prestalk A and prestalk B cells. We report evidence suggesting that this cellular diversification can be brought about by the combinatorial action of two diffusible signals, cAMP and DIF-1. Cells at different stages of normal development were transferred to shaken suspens...

In a pre vi ous study, it was noted that in some cases when com pres sive strains greater than about 5% were ap plied to tu mors re moved from the breast, there was an abrupt and ir re vers ible change in the tis sue stiff ness. The data from that study were fur ther an a lyzed and in fil trat ing ductal car ci no mas with and with out lob u lar fea tures were se lected for ad di tional test in...