Geochemical constraints on the origin of enigmatic cemented chalks, Norfolk, UK

Very hard cemented chalk stacks and crusts found locally in the upper part of the Cretaceous Chalk of north Norfolk, UK, are related to solution features. The solution features, mainly pipes and caves, formed after deposition of the overlying Middle Pleistocene Wroxham Crag, probably by routing of sub-glacial, or glacial, melt-waters derived from late Pleistocene glaciers. New geochemical (particularly stable isotope) data shows that cementation of the chalks, although related spatially to the solution features, was not caused by glacier-derived waters. The carbon isotope composition of the chalk cements is typically around -9.5‰, indicative of biologically active soils. Moreover, the oxygen isotope compositions of the cements, around -5‰, are incompatible with water d18O values much below -9 to -10‰ (which probably precludes isotopically negative glacier-derived water), as resulting palaeo-temperatures are below zero. Taken together, the isotope data suggest chalk cementation occurred under interglacial conditions similar to the present. Dissolved calcium carbonate for cementation came from dissolution of reworked chalk in overlying MIS 12 glacial tills

Identifying the Behavioral Intent to Use Social Media through the application of UTAUT in ANR and Turfgrass Extension

Little research exists on the role Extension Agricultural and Natural Resources professionals play in communicating information about new turfgrass cultivars. In an effort to analyze behavioral intentions related to social media and its use in the turfgrass industry, the researchers drew from the unified theory of acceptance and use of technology (UTAUT). A pilot instrument was developed to measure the intent of University researchers and county-based Extension professionals to use social media to disseminate turfgrass information, as well as their use of social media for seeking turfgrass information. This case study examined the role of county-based ANR Extension professionals across six states, analyzing their role as either creators or disseminators of ANR and turfgrass information, their intent to use social media, and their use of these communications to engage with ANR and turfgrass information. Findings of this study show that Facebook is the primary communications channel used by county-based Extension professionals. Further, it has been determined that the role of the county-based Extension professional in “creating” verses “using” previously established research-based information to disseminate to clientele is not well-defined. Broader implications include examination of performance expectations of county-based personnel related to their use of social media for communicating turfgrass information

Being Good for Goodness Sake: The Influence of Family Involvement on Motivations to Engage in Small Business Social Responsibility

Small family and nonfamily firms are acknowledged to serve as important facilitators of social responsibility within their communities; however, both have received relatively little attention in the literature for these efforts or their motivation for undertaking them. Grounded in Enlightened Self-Interest (ESI) and intentions, we explore motivations for participation in socially responsible behaviors and the moderating effect of family involvement. We develop measures for small business social responsibility (SBSR), ESI, and SBSR intentions. Our analyses indicate positive direct effects exist for both SBSR intentions and ESI on engagement in SBSR. We find that family involvement strengthens the relationship between ESI and participation in civic SBSR, thus suggesting that family firms may be partially motivated to "do good" in visible forms of SBSR to protect their own interests

Being Good for Goodness Sake: The Influence of Family Involvement on Motivations to Engage in Small Business Social Responsibility

Small family and nonfamily firms are acknowledged to serve as important facilitators of social responsibility within their communities; however, both have received relatively little attention in the literature for these efforts or their motivation for undertaking them. Grounded in Enlightened Self-Interest (ESI) and intentions, we explore motivations for participation in socially responsible behaviors and the moderating effect of family involvement. We develop measures for small business social responsibility (SBSR), ESI, and SBSR intentions. Our analyses indicate positive direct effects exist for both SBSR intentions and ESI on engagement in SBSR. We find that family involvement strengthens the relationship between ESI and participation in civic SBSR, thus suggesting that family firms may be partially motivated to "do good" in visible forms of SBSR to protect their own interests

Acoustic Mechanisms that Determine the Ear-Canal Sound Pressures Generated by Earphones

In clinical measurements of hearing sensitivity, a given earphone is assumed to produce essentially the same sound-pressure level in all ears. However, recent measurements [Voss et al., Ear and Hearing (in press)] show that with some middle-ear pathologies, ear-canal sound pressures can deviate by as much as 35 dB from the normal-ear value; the deviations depend on the earphone, the middle-ear pathology, and frequency. These pressure variations cause errors in the results of hearing tests. Models developed here identify acoustic mechanisms that cause pressure variations in certain pathological conditions. The models combine measurement-based Thevenin equivalents for insert and supra-aural earphones with lumped-element models for both the normal ear and ears with pathologies that alter the ear\u27s impedance (mastoid bowl, tympanostomy tube, tympanic-membrane perforation, and a \u27high- impedance\u27 ear). Comparison of the earphones\u27 Thevenin impedances to the ear\u27s input impedance with these middle-ear conditions shows that neither class of earphone acts as an ideal pressure source; with some middle-ear pathologies, the ear\u27s input impedance deviates substantially from normal and thereby causes abnormal ear-canal pressure levels. In general, for the three conditions that make the ear\u27s impedance magnitude lower than normal, the model predicts a reduced ear-canal pressure (as much as 35 dB), with a greater pressure reduction with an insert earphone than with a supra-aural earphone. In contrast, the model predicts that ear-canal pressure levels increase only a few dB when the ear has an increased impedance magnitude; the compliance of the air-space between the tympanic membrane and the earphone determines an upper limit on the effect of the middle-ear\u27s impedance increase. Acoustic leaks at the earphone-to-ear connection can also cause uncontrolled pressure variations during hearing tests. From measurements at the supra-aural earphone-to-ear connection, we conclude that it is unusual for the connection between the earphone cushion and the pinna to seal effectively for frequencies below 250 Hz. The models developed here explain the measured pressure variations with several pathologic ears. Understanding these mechanisms should inform the design of more accurate audiometric systems which might include a microphone that monitors the ear-canal pressure and corrects deviations from normal

International sporting success factors in GB para-track and field

Research Question: Elite sport structures that support para-athletes are designed on the assumption that the international sporting success factors are concomitant for parasport and non-disabled sport. However, there is a lack of research on elite parasport policy and the nuances which may exist for specific sports. This study investigates the international success factors for GB para-track and field. Research Methods A mixed-methods approach was used, including quantitative surveys completed by elite GB para-athletes (n = 42) and their coaches (n = 38) and qualitative semi-structured interviews with athletes (n = 7), coaches (n = 5) and UK para-athletics support staff (n = 3). Findings: The study revealed that although factors found in previous non-disabled studies were identified, several para-track and field-specific variables that influence these existing factors were also discovered. These were the nature of impairment (acquired or congenital); level of support and care needs; and level of equipment needs. Implications: The study presents a framework summarising the variables influencing international para-track and field success. This can be used to inform the development of GB para-track and field policy and the design of parasport support structures to optimise success. Research contribution: The paper contributes to growing knowledge on achieving sporting success in parasport and the differences with non-disabled sport

Exploring the financial and investment implications of the Paris Agreement

A global energy transition is underway. Limiting warming to 2°C (or less), as envisaged in the Paris Agreement, will require a major diversion of scheduled investments in the fossil-fuel industry and other high-carbon capital infrastructure towards renewables, energy efficiency, and other low or negative carbon technologies. The article explores the scale of climate finance and investment needs embodied in the Paris Agreement. It reveals that there is little clarity in the numbers from the plethora of sources (official and otherwise) on climate finance and investment. The article compares the US$100 billion target in the Paris Agreement with a range of other financial metrics, such as investment, incremental investment, energy expenditure, energy subsidies, and welfare losses. While the relatively narrowly defined climate finance included in the US$100 billion figure is a fraction of the broader finance and investment needs of climate-change mitigation and adaptation, it is significant when compared to some estimates of the net incremental costs of decarbonization that take into account capital and operating cost savings. However, even if the annual US$100 billion materializes, achieving the much larger implied shifts in investment will require the enactment of long-term internationally coordinated policies, far more stringent than have yet been introduced.</i