Structure and function evolution of thiolate monolayers on gold

The use of n-alkanethiolate self-assembled monolayers on gold has blossomed in the past few years. These systems have functioned as models for common interfaces. Thiolate monolayers are ideal because they are easily modified before or after deposition. The works contained within this dissertation include interfacial characterization (infrared reflection absorption spectroscopy, ellipsometry, contact angle, scanning probe microscopy, and heterogeneous electron-transfer kinetics) and various modeling scenarios. The results of these characterizations present ground-breaking insights into the structure, function, and reproducible preparation of these monolayers. Surprisingly, three interfacial properties (electron-transfer, contact angle, and ellipsometry) were discovered to depend directly on the odd-even character of the monolayer components. Molecular modeling was utilized to investigate adlayer orientation, and suggests that these effects are adlayer structure specific. Finally, the electric force microscopy and theoretical modeling investigations of monolayer samples are presented, which show that the film dielectric constant, thickness, and dipole moment directly affect image contrast. In addition, the prospects for utilization of this emerging technique are outlined

Strategic Managerial Responses to Critical Service Events in Restaurants

Inappropriate managerial responses to critical service events (CSEs) in restaurants contribute to an increased rate of customer defection and restaurant failure. Some restaurant managers lack employee-training strategies that may enhance service recovery from CSEs. This case study explored what employee-training strategies participants deemed essential to enhance service recovery to CSEs. The population for this study was restaurant managers from a U.S. regional chain in South Carolina with at least 3 years of employee-training experience. Organizational learning theory was the conceptual framework for this study. Data collection included semistructured face-to-face interviews with restaurant managers and an exploration of company archival documents related to CSEs. Using Yin\u27s 5 step data analysis method (i.e. compiling, disassembling, reassembling, interpreting, and concluding), 3 major themes emerged: customer needs and requests, which included the importance of listening to customers and affirming their requests; employee actions and attitudes, which included opinions about the ideal employee demonstrating a great attitude when correcting mistakes; and training, which included multiple methods to improve employee performance through continuous training. Recommendations for action included how to instruct employees to listen, apologize, solve problems, and thank customers. Restaurant managers may apply these results to improve service quality and customer experiences. Social implications include strategies to create positive experiences for employees and customers enhancing community employment and business sustainability

Little boxes : changing perceptions and including young people in socially sustainable participatory planning

In recent years, a great deal has been written about the benefits and ethics of including young people in participative decision-making. This has been accompanied by a burgeoning interest in including their views in participatory planning exercises that has not always been realised in practice. Drawing on a detailed analysis of the perceptions of adults and young people involved in a participatory planning exercise on Australia‟s Gold Coast, we believe that there are two major hurdles to the „full‟ engagement of young people that are in some respects two sides of the same coin: the sometimes paternalistic perceptions and often dismissive attitude that many adults have towards the participation of young people; and the perceptions that young people may have of themselves and their subordinate place in an adult-dominated planning environment. Together, such views act to place limitations on the participation of young people because they set up unrealistic expectations for both adult and younger participants in terms of how and why young people participate, and what this participation should „look and feel‟ like. In this paper, through the metaphor of boxes, we propose a number of issues that should be addressed when involving young people in participatory planning processes to ensure the most from their participation for all involved

I’m not faking being sick, I’m faking being well: The need for leadership in mental health for policing

The prevalence of mental illness amongst law enforcement officers is increasing despite genuine intent by leaders, policy makers and practitioners to combat this public health epidemic. Significant gaps exist in understanding mental health leadership, governance, education, and training, and the influence police culture has on help-seeking behaviours. This paper argues that introducing constructive and actionable processes to address these gaps will benefit greater productivity, lower levels of absenteeism, lower insurance premiums, reduce risk factors for illnesses, improve quality of life and sense of well-being, elevate cognitive performance, and reduce levels of stress. This will encourage investment in mental health, strengthen police employee– employer relationships, and save many relationships and lives

Management practices of dairy cows grazing kale

Regaining body condition lost throughlactation is a common goal for manyNZ dairy systems. Kale is a major component of the winter diet for dairy cows, with high DM yield carried through winter with less deterioration in nutritive value compared toother feeds. But body condition gain on kale oftendoes not meet farmers expectations. This presentation looks at the use of kale as a winter feed crop compared with other crops such as fodder beet

The effects of substituting autumn nitrogen fertiliser with gibberellic acid on feed supply and milk production

The aim of this study was to investigate the use of gibberellic acid (GA) to improve feed supply and milk yield in late lactation. A grazing study at Lincoln used 36 lactating, mixed-age, Friesian-Jersey cross dairy cows balanced over three un-replicated treatments of perennial-ryegrass and white-clover pasture treated with nitrogen (N) fertiliser as urea (50 kg N/ha), GA as ProGibb® SG (8 g GA/ha) or untreated (Control). Treatments were applied in late March 2014 and grazed over 12 days in May. There was no effect of treatment on herbage pre-grazing pasture mass (2058±6.9 kg DM/ha, P=0.20), clover (3.6±0.86%, P=0.53), ryegrass (88.0±2.33%, P=0.24) or crude protein (CP) content (17.8±1.60%, P=0.31). All milk yield components: 14.6±0.40 L/day, 1.4±0.09 kg MS/cow/day, 5.4±0.33% fat and 4.4±0.21% protein were similar among treatment groups (P=0.71, 0.14, 0.16 and 0.06, respectively). Although faecal-N content of cows on GA pasture (3.72% N) was higher (P0.05) on urinary-N content (0.4 ± 0.02% N) or N excretion in milk (101±4.4 g N/cow/d). The lack of response to GA or N fertiliser highlights the importance of timing of growth promotants for late lactation

Response of simple grass-white clover and multi-species pastures to gibberellic acid or nitrogen fertiliser in autumn

Herbage dry matter (DM) production, botanical composition and nutritive value of pastures were measured in response to the application of 24 g/ha gibberellic acid (GA; 60 g ProGibb®/ha) and 50 kg N/ha nitrogen fertiliser (N; 106 kg urea/ha) in autumn. Responses were compared for simple two species grass (perennial ryegrass or tall fescue)-white clover pastures and multi-species pastures where herbs (chicory and plantain), legumes (red clover and lucerne) and prairie grass were sown with the simple mixtures. Four weeks after application, the increase in DM yield averaged across pasture mixtures relative to untreated plots was 273, 104, and 493 kg DM/ha for GA alone, N fertiliser alone, and GA and N combined, respectively. Application of GA increased the white clover percentage in all pastures except simple tall fescue pastures. The percentage of herbs in multispecies pastures was increased by application of N but not GA. Crude protein concentration was decreased by GA application in all pastures except simple ryegrass pastures. The results from this study show that it is important to consider the botanical composition of pastures when determining the effect of GA on DM yield and nutritive value

Magnetic resonance cholangiopancreatography: the ABC of MRCP

Magnetic resonance cholangiopancreatography (MRCP) is a technique that has evolved over the past two decades. It continues to have a fundamental role in the non-invasive investigation of many pancreatico-biliary disorders. The purpose of this review is to summarise the key concepts behind MRCP, the different techniques that are currently employed (including functional and secretin-stimulated MRCP), the pitfalls the reader should be aware of, and the main clinical indications for its use