Risk allocation and incentives for private contractors: an analysis of Italian project financing contracts

Based on the economic literature and international comparison, the paper examines the adequacy of the terms of Italian project financing contracts to build and operate public works, and identifies potential areas for improvement. We analyze the main contractual content of the public works construction and management concessions submitted to the Project Financing Technical Unit with a view to monitoring public-private contract partnerships. Overall, the analysis reveals the backwardness of the Italian system and the existence of not insignificant problem areas. The survey supports the need to foster adequate standardization of contracts in Italy aimed, in particular, at ensuring: i) the provision of more appropriate mechanisms for the employment of penalties for breach of contract by the concessionaire, especially in the management phase, and – conversely – of reward mechanisms; ii) the inclusion of clauses relative to the sharing of financing documents by the contracting authorities; iii) appropriate attention to the quantitative elements of the business plan; and iv) the strengthening of supervisory activity of the grantor during the various phases of the contract.project financing, regulation, risk allocation

Towards a muon collider

A muon collider would enable the big jump ahead in energy reach that is needed for a fruitful exploration of fundamental interactions. The challenges of producing muon collisions at high luminosity and 10 TeV centre of mass energy are being investigated by the recently-formed International Muon Collider Collaboration. This Review summarises the status and the recent advances on muon colliders design, physics and detector studies. The aim is to provide a global perspective of the field and to outline directions for future work

Towards a Muon Collider

A muon collider would enable the big jump ahead in energy reach that is needed for a fruitful exploration of fundamental interactions. The challenges of producing muon collisions at high luminosity and 10 TeV centre of mass energy are being investigated by the recently-formed International Muon Collider Collaboration. This Review summarises the status and the recent advances on muon colliders design, physics and detector studies. The aim is to provide a global perspective of the field and to outline directions for future work.Comment: 118 pages, 103 figure

Erratum: Towards a muon collider

The original online version of this article was revised: The additional reference [139] has been added. Tao Han’s ORICD ID has been incorrectly assigned to Chengcheng Han and Chengcheng Han’s ORCID ID to Tao Han. Yang Ma’s ORCID ID has been incorrectly assigned to Lianliang Ma, and Lianliang Ma’s ORCID ID to Yang Ma. The original article has been corrected

Towards a muon collider

A muon collider would enable the big jump ahead in energy reach that is needed for a fruitful exploration of fundamental interactions. The challenges of producing muon collisions at high luminosity and 10 TeV centre of mass energy are being investigated by the recently-formed International Muon Collider Collaboration. This Review summarises the status and the recent advances on muon colliders design, physics and detector studies. The aim is to provide a global perspective of the field and to outline directions for future work

Adenomyosis and endometriosis in adolescents and young women with pelvic pain: prevalence and risk factors

To evaluate the prevalence of ultrasound diagnosis of adenomyosis and endometriosis in young women complaining of pelvic pain and to find the symptoms and clinical characteristics associated with these diseases in young women

Malignant melanoma in a tattoo: case report and review of the literature

Tattooing is a fairly widespread practice worldwide, despite the trauma it entails and the potentially toxic pigments it employs. Several benign and malignant lesions have been described in relation to tattoos, including verrucae, granulomas, basal cell and squamous cell carcinoma. Overall, only 10 cases of malignant melanoma in tattoos are reported in the English literature. We describe a malignant melanoma that developed on a nevus on which a tattoo had been made. The possible pathogenetic relationship between malignant melanoma and tattoos is also discussed

Primitive polypoid granular cell tumor

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Giant verrucous porokeratosis of Mibelli mimicking psoriasis in a patient with psoriasis

Porokeratosis of Mibelli is a disorder of epidermal keratinization characterized by annular plaques with an atrophic center surrounded by a keratotic wall. We report a case of a giant verrucous porokeratosis of Mibelli mimicking psoriasis that developed in a patient with psoriasis and therefore went unrecognized for a long time. Histologically the lesion combined features of porokeratosis at the periphery and of psoriasis at its center, a picture recently described as "psoriasis encircled by porokeratosis." The possible pathogenetic relationship between psoriasis and the development of porokeratosis is also discussed