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The problem of failure envelopes of pile groups subjected to vertical and eccentric load is investigated both theoretically and experimentally. A critical review of literature works on failure envelopes for pile groups under combined axial-moment loading is first provided. Emphasis is placed on a recent, exact solution derived from theorems of limit analysis by idealizing piles as uniaxial rigid-perfectly plastic elements. The application of the relevant equations over a practical range of problems needs only the axial capacities in compression and uplift of the isolated piles. An intense program of centrifuge experiments carried out along with different load paths on annular shaped pile groups aimed at validating the equations pertinent to the above solution is presented and discussed. The endpoints of the load paths followed in the centrifuge lie approximately above the analytical failure envelope, giving confidence that the reference equations can be reliably adopted to assess the capacity of a pile group under combined axial-moment loading. Finally, the kinematics of the collapse mechanism observed experimentally is compared to that determined from the application of the reference theory.

SUMMARYObjective — This study explored the effectiveness of a psychoeducational family intervention for schizophrenia on patients' clinical status and disability and relatives' burden and perceived support. Methods — The study has been carried out in 17 mental health centres. In each of them, 2 professionals were trained in a psychoeducational intervention and applied it for six months with families of users with schizophrenia. At baseline and six months later, patients' clinical status and disability, and relatives' burden, social network and professional support were assessed by validated tools. Results — Of the seventy-one recruited families, 48 (68%) completed the intervention. At six months, a significant improvement was found in patients' clinical status and social functioning, as well as in relatives' burden and social and professional support. In particular, the percentage of patients with poor or very poor global social functioning dropped from 50% to 27% at six months. Forty percent of patients and 45% of relatives reported a significant improvement in their social contacts over the intervention period. Conclusions — The results of this study confirm the hypothesis that psychoeducational family interventions may have a significant effect on social outcome and family burden in schizophrenia when provided in routine conditions.Declaration of Interest: none of the authors has had any interest or he/she has received any form of support, including that from drug companies and honoraria for lectures and consultancies, potentially in conflict with this scientific work. None of the authors has received any form of fee for his/her participation in this study. This study was supported by grants received from the “M. Lugli” Foundation (grant n. 2/18/8) and from the National Institute of Health, Italy (grant no. 1AL/F3).

SUMMARYAims – This study aims to explore: a) the feasibility of psycho-educational interventions for families of users with schizophrenia in clinical practice by trained staff; b) the benefits and problems encountered by professionals in the use of these interventions. Methods – 46 professionals from 23 Italian Mental Health Sen'ices (MHS) attended at a three-module training course in psycho-educational interventions and four supervisions in the subsequent year. Following the course, participants provided the intervention to families of users with schizophrenia. The difficulties and benefits encountered by trainees to use the intervention were registered on the Family Intervention Schedule.Results – 83% of the participants completed the training course. Following the course, the intervention started in 71 families from 17 MHS. 76% of trainees provided the intervention to 2-5 families, while 13% of them only held informative sessions on schizophrenia. During the supervision period, the organisational difficulties experienced by the professionals were stable, while the benefits increased. Differences in benefits and difficulties were detected in relation to the trainees’ experience and professional roles. Conclusions – It is possible to introduce psycho-educational interventions in MHS after a relatively brief period of training and supervision of the staff. Organisational difficulties need to be addressed to increase the dissemination of these interventions on a large scale.Declaration of Interest: None of the authors has had any interest or he/she has received any form of support, including that from drug companies and honoraria for lectures and consultancies, potentially in conflict with this scientific work. None of the authors has received any form of fee for his/her participation in this study. This study was supported by grants received from the “M. Lugli” Foundation (grant n. 2/18/8) and from the National Institute of Health, Italy (grant no. 1AL/F3).