On Atkin and Swinnerton-Dyer Congruence Relations (2)

In this paper we give an example of a noncongruence subgroup whose three-dimensional space of cusp forms of weight 3 has the following properties. For each of the four residue classes of odd primes modulo 8 there is a basis whose Fourier coefficients at infinity satisfy a three-term Atkin and Swinnerton-Dyer congruence relation, which is the $p$-adic analogue of the three-term recursion satisfied by the coefficients of classical Hecke eigen forms. We also show that there is an automorphic $L$-function over $\mathbb Q$ whose local factors agree with those of the $l$-adic Scholl representations attached to the space of noncongruence cusp forms.Comment: Last version, to appear on Math Annale

The trade-off between taxi time and fuel consumption in airport ground movement

Environmental impact is a very important agenda item in many sectors nowadays, which the air transportation sector is also trying to reduce as much as possible. One area which has remained relatively unexplored in this context is the ground movement problem for aircraft on the airport’s surface. Aircraft have to be routed from a gate to a runway and vice versa and it is still unknown whether fuel burn and environmental impact reductions will best result from purely minimising the taxi times or whether it is also important to avoid multiple acceleration phases. This paper presents a newly developed multi-objective approach for analysing the trade-off between taxi time and fuel consumption during taxiing. The approach consists of a combination of a graph-based routing algorithm and a population adaptive immune algorithm to discover different speed profiles of aircraft. Analysis with data from a European hub airport has highlighted the impressive performance of the new approach. Furthermore, it is shown that the trade-off between taxi time and fuel consumption is very sensitive to the fuel-related objective function which is used

Does the Concentration of Parolees in a Community Impact Employer Attitudes Toward the Hiring of Ex-Offenders?

Finding legitimate employment upon release from prison is an important, yet daunting, aspect of offender reentry. Researchers have argued that negative employer attitudes toward hiring ex-offenders act as a barrier during the job search process. This study explored existing attitudes of employers in their willingness to hire ex-offenders in the current labor market and determined whether these attitudes were dependent on the concentration of ex-offenders in the surrounding geographical community. Mail surveys and follow-up telephone contacts with a random sample of businesses that typically employ ex-offenders within 12 Texas zip-codes (six high parolee concentrations, six low parolee concentrations) were conducted. Respondents indicated a general willingness to hire ex-offenders, which did not vary by concentration of parolees in the surrounding area but was found to vary by the conviction offense. Other significant predictors included the respondent’s age and arrest history, whether their business was currently hiring, and whether the business had previously hired an ex-offender

Transformational Leadership Skills and Correlates of Prison Warden Job Stress

Job stress is related to poor job performance, dissatisfaction, and turnover for correctional officers in the workplace. Despite parallel implications for correctional administrators, an extension of the correctional officer job stress literature to prison wardens is virtually absent. Yet the dynamic correctional environment includes many added challenges for prison wardens that could lead to a stressful work experience. Similar to those of officers, coping mechanisms for prison wardens may include peer support, but the extent of a warden’s transformational leadership skills could be related to a more positive work experience. Results indicate that wardens who perceived themselves as having higher levels of transformational leadership capacity also experienced less job stress. Peer support was unrelated to job stress, but employee trust was a robust correlate. In addition, although corrections tenure was unrelated, a wider breadth of corrections experience (holding treatment and custody positions) was related to less stress

Using a hypothetical scenario to assess public preferences for colorectal surveillance following screening-detected, intermediate-risk adenomas: annual home-based stool test vs. triennial colonoscopy

Background To assess public preferences for colorectal cancer (CRC) surveillance tests for intermediate-risk adenomas, using a hypothetical scenario. Methods Adults aged 45–54 years without CRC were identified from three General Practices in England (two in Cumbria, one in London). A postal survey was carried out during a separate study on preferences for different first-line CRC screening modalities (non- or full-laxative computed tomographic colonography, flexible sigmoidoscopy, or colonoscopy). Individuals were allocated at random to receive a pack containing information on one first-line test, and a paragraph describing CRC surveillance recommendations for people who are diagnosed with intermediate-risk adenomas during screening. All participants received a description of two surveillance options: annual single-sample, home-based stool testing (consistent with Faecal Immunochemical Tests; FIT) or triennial colonoscopy. Invitees were asked to imagine they had been diagnosed with intermediate-risk adenomas, and then complete a questionnaire on their surveillance preferences. Results 22.1 % (686/3,100) questionnaires were returned. 491 (15.8 %) were eligible for analysis. The majority of participants stated a surveillance preference for the stool test over colonoscopy (60.8 % vs 31.0 %; no preference: 8.1 %; no surveillance: 0.2 %). Women were more likely to prefer the stool test than men (66.7 % vs. 53.6 %; p = .011). The primary reason for preferring the stool test was that it would be done more frequently. The main reason to prefer colonoscopy was its superiority at finding polyps. Conclusions A majority of participants stated a preference for a surveillance test resembling FIT over colonoscopy. Future research should test whether this translates to greater adherence in a real surveillance setting