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The need for a small, low cost, simple, personal UVR detector has been motivated by the growing concerns about adverse health effects induced by UV radiation. SolarTech Enterprises, LLC has developed several such photochromic detectors for UV radiation detection. Broadband detectors (290nm to 400nm) and wavelength specific detectors for UVB and UVA regions of the spectrum have all been developed by SolarTech.

Purpose – The aim of this research was to test whether the motivations of self-enhancement and self-verification act independently and simultaneously, specifically in the context of the impostor phenomenon.

Design/methodology/approach – Using both self-report measures and salivary cortisol levels, I conducted a 2×2 experiment (N=106) in which status (high or low) was crossed with competition outcome (win or lose). The “low-status winner” condition served as a simulation of the impostor phenomenon.

Findings – Winners reported greater positive affect and less negative affect, indicating self-enhancement, but salivary cortisol levels were higher in participants whose status was disconsonant with the competition outcome (high-status losers and low-status winners), reflecting self-verification.

Research limitations/implications – A potential limitation was the omission of nicotine use as a control variable.

Practical implications – Results illuminate the dual public and private nature of the impostor phenomenon, in which normative expressions of happiness overlie deeper feelings of anxiety. A better understanding would benefit educators, employers, counselors, and therapists who work with high-achieving women and minorities as well as the women and minorities they serve.

Social implications – Findings suggest that efforts should be made to bolster the confidence of promising young women and minorities, with the understanding that, despite high levels of achievement, self-confidence and a sense of deservedness may be lacking.

Originality/value – Methodological advancements included the first laboratory simulation of the impostor phenomenon and the use of both self-report and physiological measures of responses to status situations. This was the first study capable of observing the motivations to self-enhance and self-verify simultaneously and independently of one another.

This article examines the impact of the 1996 welfare‐to‐work law on women’s work and welfare outcomes. I investigate four welfare and work outcomes: (1) off welfare and employed; (2) off welfare and unemployed; (3) on welfare and employed; and (4) on welfare and unemployed. I compare how women on welfare move into these different categories from 1990 to 2000, with specific interest in examining what happened to the number of women in these categories after 1996, which is the bench mark year to examine the impact of the 1996 welfare‐to‐work law. In this article I will investigate four questions: (1) are long‐term welfare users permanently leaving welfare?; (2) is there a group of welfare users that permanently left welfare before the 1996 welfare‐to‐work law? (3) is there a hard‐to‐serve welfare population?; and (4) are those women that leave welfare finding employment. I draw four conclusions from my analyses. My first conclusion is that a new group of welfare users emerged after 1996 that is different than the conventional three groups (e.g., long‐term users, short‐term users, and recidivists). I call this new group PRWORA leavers, which are long‐term welfare users that have permanently left the welfare rolls after 1996. My second conclusion is that a group of welfare users permanently left the welfare rolls before 1996. Thus, many women were already leaving welfare and finding work be fore the law was passed. My third conclusion is that there remains a consistent hard‐to‐serve population on welfare. However, this group of welfare users is small. My fourth conclusion is that work participation has significant in creased from 1996 to 2000 for long‐term welfare users.

The purpose of this paper is to investigate the relationship between hospital adoption and use of computed tomography (CT) scanners, and magnetic resonance imaging (MRI) machines and in-patient mortality and length of stay.

This study used panel data (2007–2010) from 124 hospital corporations operating in Ontario, Canada. Imaging use focused on medical patients accounting for 25 percent of hospital discharges. Main outcomes were in-hospital mortality rates and average length of stay. A model for each outcome-technology combination was built, and controlled for hospital structural characteristics, market factors and patient characteristics.

In 2010, 36 and 59 percent of hospitals had adopted MRI machines and CT scanners, respectively. Approximately 23.5 percent of patients received CT scans and 3.5 percent received MRI scans during the study period. Adoption of these technologies was associated with reductions of up to 1.1 percent in mortality rates and up to 4.5 percent in length of stay. The imaging use–mortality relationship was non-linear and varied by technology penetration within hospitals. For CT, imaging use reduced mortality until use reached 19 percent in hospitals with one scanner and 28 percent in hospitals with 2+ scanners. For MRI, imaging use was largely associated with decreased mortality. The use of CT scanners also increased length of stay linearly regardless of technology penetration (4.6 percent for every 10 percent increase in use). Adoption and use of MRI was not associated with length of stay.

These results suggest that there may be some unnecessary use of imaging, particularly in small hospitals where imaging is contracted out. In larger hospitals, the results highlight the need to further investigate the use of imaging beyond certain thresholds. Independent of the rate of imaging use, the results also indicate that the presence of CT and MRI devices within a hospital benefits quality and efficiency.

To the authors’ knowledge, this study is the first to investigate the combined effect of adoption and use of medical imaging on outcomes specific to CT scanners and MRI machines in the context of hospital in-patient care.

The present research investigates tailoring the physical properties of stereolithography (SL) epoxy‐based resins by dispersing controlled small amounts of multi‐walled carbon nanotubes (MWCNTs) directly in SL resins prior to layered manufacturing.

A modified 3D Systems 250/50 SL multi‐material machine was used where the machine was equipped with a solid‐state (355 nm) laser, unique ∼ 500 ml vat, overfill drain vat design that continuously flowed resin into the vat via a peristaltic pump, and 8.89 by 8.89 cm² platform. The vat did not include a recoating system. Pumping the composite resin assisted in maintaining the MWCNTs dispersed over long periods of time (with MWCNT settling times on the order of one week). The research approach required developing a method for dispersing the MWCNTs in SL resin, determining new SL build parameters for the modified resin and SL machine, and building and testing tensile specimens.

Mechanical mixing and ultrasonic dispersion provided simple means for dispersing MWCNTs in the SL resin. However, MWCNT agglomerates were observed in all the parts fabricated using the filled resins. Each concentration of MWCNTs resulted in a “new” resin requiring modifications to the SL build parameters, E_C and D_P. Once characterized, the modified resins performed similar to traditional resins in the SL process. Small dispersions of MWCNTs resulted in improvements in the tensile strength (TS) (or ultimate tensile stress) and fracture stress (FS) of tensile specimens as 0.025 percent (w/v) MWCNTs in DSM Somos^® WaterShed™ 11120 resin resulted in increases in TS and FS of 5.7 percent and 26 percent, respectively, when compared to unfilled resin. Increasing the concentration of MWCNTs to 0.10 percent (w/v) resulted in increases in TS and FS of 7.5 percent and 33 percent, respectively, over the unfilled resin. Transmission and scanning electron microscopy showed strong affinity between the epoxy resin and the MWCNTs.

Additional MWCNT type and concentrations in various SL resins should be investigated along with additional means for dispersion to provide sufficient information on developing new SL resins for unique functional applications.

It is anticipated that the methods described here will provide a basis for further development of advanced nanocomposite SL resins for end‐use applications.

This research successfully illustrated the dispersion and use of MWCNTs as a reinforcement material in a commercially available SL resin.

This paper aims to look at some of the implications of organisational psychopaths for organisations and corporations.

This paper defines organisational psychopaths as being those psychopaths who exist at an incidence of about 1 percent of the general population and who work in organisations. The paper describes how these organisational psychopaths are able to present themselves as desirable employees and are easily able to obtain positions in organisations. Without the inhibiting effect of a conscience they are then able to ruthlessly charm, lie, cajole and manipulate their way up an organisational hierarchy in pursuit of their main aims of power, wealth and status and at the expense of anyone who gets in their way.

The paper suggests that, just as criminal psychopaths are responsible for a greater share of crimes than their numbers would suggest, so too organisational psychopaths may be responsible for more than their fair share of organisational misbehaviour including accounting fraud, stock manipulation, unnecessarily high job losses and corporately induced environmental damage.

The paper suggests that having organisational psychopaths running corporations that are themselves, at best, amoral is a recipe for negative consequences.

Recent research begins to explore how organizations of informal workers function, and succeed or fail. Using cases of domestic-worker movements in Mexico and the United States, we seek to extend this research by adding historical analysis of the movements’ evolution through a cross-national analysis of movement differences. We draw on concepts from the social movement and intersectionality literature. Historically, the two movements have been propelled by multiple streams of activism corresponding to shifting salient intersectional identities and frames, always including gender but incorporating other elements as well. Comparatively, the US domestic-worker movement recently has had greater success due to superior financial resources and more facilitative political opportunities – advantages due in part precisely to intersectional identities resonant with potential allies. However, this relative advantage was not always present and may not persist. Social movement concepts and intersectional analysis thus help understand both historical changes and cross-national contrasts in informal-worker organizing.

This research used a Phenomenography approach of Eye Tracking to study the Biometric changes when participants were subjected to eight static subliminal images hidden in seven differently designed packages. Embeds or static subliminal stimulus in the form of pictures and words were hidden in seven different perfume packages and were used to study the changes experienced between the two groups, one of which was subjected to subliminal stimulus. This study was conducted in the Neuro Lab located in the SP Jain Sydney campus. A total of 46 healthy participants were separated into two groups, with one group shown image packages with static subliminal stimulus while the other group was shown image packages without any subliminal stimulus. Eye Tracking data was collected using iMotions. A detailed analysis of the Area of Interest (AOI), Fixation and Heat Map revealed that only a percentage of the participants visited the AOI with the hidden subliminal stimulus, but the participants who noticed the AOIs with the subliminal stimulus especially the male participants spent more time in the AOI indicating that they could be consciously processing the subliminal static stimulus. A statistical analysis of the time to first fixations (TIFF) revealed that the subliminal stimulus was not the first point of attraction.

Electronic government (e-government) is perceived as an effective tool to enhance accountability in public organizations. However, e-government implementation to enhance accountability is still unclear and involves many complex processes because of the multiple accountabilities disorder. The e-government elements that contribute to mitigate the disorders and dysfunctions of accountability relationships are still underdeveloped in the current literature. This paper aims to provide understanding on how e-government enhances public organizations’ accountability by highlighting the key elements of e-government that mitigate the disorders and dysfunctions of accountability relationships.

This study adopts a qualitative case study approach by using the case of Jordan Customs. Data were collected using a triangulation approach that involved semi-structured interviews, document reviews and observation.

The findings revealed that the e-government elements that mitigate the disorders and dysfunctions of accountability relationships are classified into three contexts, namely, technological, environmental and organizational aspects. The technological elements include systems integration, single window and electronic connectivity. The environmental elements embrace public participation and partnership council. The organizational elements comprise having well-defined strategic plan and risk management approach.

This study contributes and gives further insight into how to address the confusion, fuzziness and dysfunctions in accountability relationships existing in the literature by providing several success elements that mitigate the problematic of disorder between accountability relationships in public organizations. The paper highlights the need to investigate further elements, particularly, in the organizational context, to assist public organizations in improving their performance to enhance accountability in their operations.

This study provides guidelines for future e-government implementation strategy in public organizations, particularly, in the context of developing countries, as most of the recent studies of e-government in developing countries indicated that they are suffering from difficulty of managing e-government implementation to promote accountability successfully and are struggling with a lack of resources and experiences to handle this new trend of technology.

This study is of a significant value, as it is one of the preliminary studies that empirically extend the accountability dimensions suggested by Koppell (2005) with the key success elements of e-government that enhance accountability proposed by Heeks (1998b) and other current literature. This paper enriches the body of literature by providing some new key success elements of e-government that enhance accountability in public organizations. It also contributes to the expansion of the boundaries of knowledge by adding further interpretation on how these elements reduce the existing confusions and dysfunctions in accountability relationships.

This paper aims to measure the oil film thickness between the roller and the inner ring in roller bearings by the ultrasonic method. The oil film thickness between the roller and the inner ring in roller bearings is a key performance indicator of the bearing lubrication condition. As the oil film is very thin and the contact region is very narrow, measurement of this film thickness is very challenging. A promising ultrasonic method was used to measure this film thickness, and this method was expected to overcome some drawbacks in other methods.

A simplified roller bearing only configured one roller, and an inner ring was built up to investigate this measurement. A miniature piezoelectric element is bonded on the inner surface of the inner ring to measure the reflection coefficient from the layer of oil between the roller and the inner raceway. As the width of the line contact region is smaller than the width of the piezoelectric element, a ray model is used to calibrate the reflection coefficient measured. The quasi-static spring model is then used to calculate oil film thickness from the corrected reflection coefficient data.

The results measured by this method agree reasonably well with predictions from elastohydrodynamic lubrication (EHL) theory. Also, a dynamic displacement of the rig caused by the skid of the roller versus the inner ring was found under light-load and high-speed conditions.

This work shows that the oil film between the roller and the inner raceway in roller bearings can be measured accurately by ultrasound and shows a deal method when the contact width is smaller than the piezoelectric element width.