Northern Illinois University

About: Northern Illinois University is a education organization based out in DeKalb, Illinois, United States. It is known for research contribution in the topics: Large Hadron Collider & Population. The organization has 8818 authors who have published 20008 publications receiving 632341 citations. The organization is also known as: NIU.

VeA Is Required for Toxin and Sclerotial Production in Aspergillus parasiticus

Abstract: It was long been noted that secondary metabolism is associated with fungal development. In Aspergillus nidulans, conidiation and mycotoxin production are linked by a G protein signaling pathway. Also in A. nidulans, cleistothecial development and mycotoxin production are controlled by a gene called veA. Here we report the characterization of a veA ortholog in the aflatoxin-producing fungus A. parasiticus. Cleistothecia are not produced by Aspergillus parasiticus; instead, this fungus produces spherical structures called sclerotia that allow for survival under adverse conditions. Deletion of veA from A. parasiticus resulted in the blockage of sclerotial formation as well as a blockage in the production of aflatoxin intermediates. Our results indicate that A. parasiticus veA is required for the expression of aflR and aflJ, which regulate the activation of the aflatoxin gene cluster. In addition to these findings, we observed that deletion of veA reduced conidiation both on the culture medium and on peanut seed. The fact that veA is necessary for conidiation, production of resistant structures, and aflatoxin biosynthesis makes veA a good candidate gene to control aflatoxin biosynthesis or fungal development and in this way to greatly decrease its devastating impact on health and the economy.

Time Strains and Psychological Well-Being Do Dual-Earner Mothers and Fathers Differ?

Abstract: Using data from the 1997 National Study of the Changing Workforce, these authors examine gender differences in feeling time strain for children, spouse, and oneself and in the association of these feelings with psychological well-being among dual-earner parents. Fathers are more likely than mothers to report feeling time deficits with their children and spouse; however, it is primarily because fathers spend more hours in paid work than mothers. Yet feelings of time deficits with children and spouse are associated with lower well-being only for mothers. In terms of time for oneself, mothers more than fathers feel strains, net of the time they spend on free-time activities. Mothers and fathers who feel a time shortage for themselves express lower well-being, although for some measures, the relationship is stronger for fathers.

A Grid-Enabled MPI: Message Passing in Heterogeneous Distributed Computing Systems

Abstract: Application development for high-performance distributed computing systems, or computational grids as they are sometimes called, requires ``grid-enabled'' tools that hide mundane aspects of the heterogeneous grid environment without compromising performance. As part of an investigation of these issues, we have developed MPICH-G, a grid-enabled implementation of the Message Passing Interface (MPI) that allows a user to run MPI programs across multiple computers at different sites using the same commands that would be used on a parallel computer. This library extends the Argonne MPICH implementation of MPI to use services provided by the Globus grid toolkit. In this paper, we describe the MPICH-G implementation and present preliminary performance results.

Search for additional heavy neutral Higgs and gauge bosons in the ditau final state produced in 36 fb−1 of pp collisions at √s=13 TeV with the ATLAS detector

Abstract: A search for heavy neutral Higgs bosons and Z' bosons is performed using a data sample corresponding to an integrated luminosity of 36.1 fb(-1) from proton-proton collisions at root s = 13 TeV reco ...