Assessing Interactive Videodisc in Extension

If Extension is going to use interactive videodisc as a program delivery method in the future, the technology must be explored and systematically evaluated in a variety of learning situations. Studying the adoption of the technology in Extension challenges us to (a) identify those interested in exploring the medium, (b) develop an overall strategy for testing the technology, and (e) organize a method for delivering the evaluative information to decision makers. This article poses a considerable number of questions to be addressed as interactive videodisc is tested for its application in transferring information in Extension

Assessing Interactive Videodisc In Extension

If Extension is going to use interactive videodisc as a program delivery method in the future, the technology must be explored and systematically evaluated in a variety of learning situations

Modelled hydraulic redistribution by sunflower (Helianthus annuus L.) matches observed data only after including night-time transpiration

Author Posting. © The Author(s), 2013. This is the author's version of the work. It is posted here by permission of John Wiley & Sons for personal use, not for redistribution. The definitive version was published in Plant, Cell & Environment 37 (2014): 899-910, doi:10.1111/pce.12206.The movement of water from moist to dry soil layers through the root systems of plants, referred to as hydraulic redistribution (HR), occurs throughout the world and is thought to influence carbon and water budgets and ecosystem functioning. The realized hydrologic, biogeochemical, and ecological consequences of HR depend on the amount of redistributed water, while the ability to assess these impacts requires models that correctly capture HR magnitude and timing. Using several soil types and two eco-types of sunflower (Helianthus annuus L.) in split-pot experiments, we examined how well the widely used HR modeling formulation developed by Ryel et al. (2002) matched experimental determination of HR across a range of water potential driving gradients. H. annuus carries out extensive nighttime transpiration, and though over the last decade it has become more widely recognized that nighttime transpiration occurs in multiple species and many ecosystems, the original Ryel et al. (2002) formulation does not include the effect of nighttime transpiration on HR. We developed and added a representation of nighttime transpiration into the formulation, and only then was the model able to capture the dynamics and magnitude of HR we observed as soils dried and nighttime stomatal behavior changed, both influencing HR.This work was supported by a NOAA Climate and Global Change Postdoctoral Fellowship to RBN, administered by the University Corporation for Atmospheric Research, by a grant from the Andrew W. Mellon Foundation to NMH, and by DOE Terrestrial Ecosystem Science grant ER65389 to ZGC and RBN.2014-10-2

The Humanities Matter!

The Humanities are academic disciplines that seek to understand and interpret the human experience, from individuals to entire cultures, engaging in the discovery, preservation, and communication of the past and present record to enable a deeper understanding of contemporary society. The Humanities encompass literature, classics, ancient and modern languages, history, philoso - phy, media studies, the fine and performing arts, and other related subjects. It can be a challenge to show the benefits the Humanities bring: in this infographic we gather available evidence to show the Humanities matter

What a difference a term makes:the effect of educational attainment on marital outcomes in the UK

Abstract In the past, students in England and Wales born within the first 5 monthsof the academic year could leave school one term earlier than those born later inthe year. Focusing on women, those who were required to stay on an extra termmore frequently hold some academic qualification. Using having been required tostay on as an exogenous factor affecting academic attainment, we find that holding alow-level academic qualification has no effect on the probability of being currentlymarried for women aged 25 or above, but increases the probability of the husbandholding some academic qualification and being economically active.33 Halama