Inventory and new records of Polychaete species from the Cap Bon peninsula , North East coast of Tunisia, Western Mediterranean Sea

An inventory of polychaete species is presented from the north-east coast of Tunisia with an historic review of the previous literature from Tunisian coasts. Altogether 40 families, 146 genera, and 238 species are currently known from the area, of which 86 taxa, 4 families (Chrysopetalidae, Pilargidae, Protodrilidae and Saccocirridae) and 40 genera (Saccocirrus, Protodrilus, Parathelepus, Thelepus, Petta, Isolda, Brada, Tharyx, Paraprionospio, Jasmineira, Hypsicomus, Euchone, Pseudobranchiomma, Laonome, Galathowenia, Lugia, Pseudomystides, Protomystides, Pirakia, Mysta, Eurysyllis, Parapionosyllis, Streptosyllis, Paraehlersia, Sigambra, Ancistrosyllis, Kefersteinia, Chrysopetalum, Bhawania, Fimbriosthenelais, Subadyte, Panthalis, Dorvillea, Scalibregma, Paradoneis, Cirrophorus, Metasychis, Websterinereis, Euniphysa and Mastobranchus) are new additions to the polychaete fauna of Tunisia. The list, which provides a synthesis of the regional taxonomic work, including coastal areas from Sidi Daoud to the area of Menzel Hurr (Cap Bon Peninsula, Western Mediterranean Sea), can serve as a baseline for future studies

The impact of risk management practice upon the implementation of recovery-oriented care in community mental health services: a qualitative investigation

Background: Recovery-oriented care has become guiding principle for mental health policies and practice in the UK and elsewhere. However, a pre-existing culture of risk management practice may impact upon the provision of recovery-oriented mental health services. Aims: To explore how risk management practice impacts upon the implementation of recovery-oriented care within community mental health services. Method: Semi-structured interviews using vignettes were conducted with 8 mental health worker and service user dyads. Grounded theory techniques were used to develop explanatory themes. Results: Four themes arose: 1) recovery and positive risk taking; 2) competing frameworks of practice; 3) a hybrid of risk and recovery; 4) real-life recovery in the context of risk. Discussion: In abstract responses to the vignettes, mental health workers described how they would use a positive risk taking approach in support of recovery. In practice, this was restricted by a risk-averse culture embedded within services. Mental health workers set conditions with which service users complied to gain some responsibility for recovery. Conclusion: A lack of strategic guidance at policy level and lack of support and guidance at practice level may result in resistance to implementing ROC in the context of RMP. Recommendations are made for policy, training and future research

Testing for seasonal unit roots by frequency domain regression

This paper develops univariate seasonal unit root tests based on spectral regression estimators. An advantage of the frequency domain approach is that it enables serial correlation to be treated non-parametrically. We demonstrate that our proposed statistics have pivotal limiting distributions under both the null and near seasonally integrated alternatives when we allow for weak dependence in the driving shocks. This is in contrast to the popular seasonal unit root tests of, among others, Hylleberg et al. (1990) which treat serial correlation parametrically via lag augmentation of the test regression. Moreover, our analysis allows for (possibly infinite order) moving average behaviour in the shocks, while extant large sample results pertaining to the Hylleberg et al. (1990) type tests are based on the assumption of a finite autoregression. The size and power properties of our proposed frequency domain regression-based tests are explored and compared for the case of quarterly data with those of the tests of Hylleberg et al. (1990) in simulation experiments.Seasonal unit root tests; moving average; frequency domain regression; spectral density estimator; Brownian motion

Galaxy Interactions in Compact Groups II: abundance and kinematic anomalies in HCG 91c

Galaxies in Hickson Compact Group 91 (HCG 91) were observed with the WiFeS integral field spectrograph as part of our ongoing campaign targeting the ionized gas physics and kinematics inside star forming members of compact groups. Here, we report the discovery of HII regions with abundance and kinematic offsets in the otherwise unremarkable star forming spiral HCG 91c. The optical emission line analysis of this galaxy reveals that at least three HII regions harbor an oxygen abundance ~0.15 dex lower than expected from their immediate surroundings and from the abundance gradient present in the inner regions of HCG 91c. The same star forming regions are also associated with a small kinematic offset in the form of a lag of 5-10 km/s with respect to the local circular rotation of the gas. HI observations of HCG 91 from the Very Large Array and broadband optical images from Pan-STARRS suggest that HCG 91c is caught early in its interaction with the other members of HCG 91. We discuss different scenarios to explain the origin of the peculiar star forming regions detected with WiFeS, and show that evidence point towards infalling and collapsing extra-planar gas clouds at the disk-halo interface, possibly as a consequence of long-range gravitational perturbations of HCG 91c from the other group members. As such, HCG 91c provides evidence that some of the perturbations possibly associated with the early phase of galaxy evolution in compact groups impact the star forming disk locally, and on sub-kpc scales.Comment: 25 pages, 21 figures, MNRAS accepted. Until publication of the article, the interactive component of Figure 4 is available at this URL: http://www.mso.anu.edu.au/~fvogt/website/misc.htm

Sclerotinia rot of vegetables

SCLEROTINIA ROT, caused by the fungus Sclerotinia sclerotiorum, is now one of the most serious vegetable diseases in metropolitan market gardens. Over the past decade it has been steadily increasing in prevalence and if present trends continue, many growers may be forced to abandon certain crops. Although most vegetables are susceptible, the greatest losses are occurring in the autumn planting of beans, cauliflowers and lettuce and in the production of cauliflower seed

Plant diseases : Sclerotinia disease in vegetables : control with Allisan fungicide : a progress report

During the past decade sclerotinia rot has become a major disease problem in metropolitan market gardens. The fungicide Allisan has given promising results as a cover spray for the control of Sclerotinia. Two applications of the material reduced the incidence of Sclerotinia in runner beans from 45 per cent, to 15 per cent, and in lettuce from 9 per cent, to 2 per cent

Sclerotinia rot of beans

INVESTIGATIONS over the past three years suggest trenching is the most important practice for controlling Sclerotinia rot in market gardens. None of the remaining measures under test gave satisfactory control of the disease, although some reduced its incidence significantly

Sclerotinia disease of vegetables : survival of the fungus in soil

Sclerotinia of vegetables is carried over in the soil of market gardens by means of resting fungal bodies called sclerotia. Recent tests have shown that sclerotia may stay alive in the sandy soils of Spearwood for two years, but disappear from the wet peat soils of Wanneroo within six month