bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Future of Consultation–Liaison Psychiatry
Authors: Smith Graeme C. 
Published: December 2004

Objective: To review the status of consultation–liaison psychiatry and the factors shaping it, and suggest strategies for its future development. Method: In addition to searches of the main computerized psychiatric databases and review of relevant Commonwealth of Australia publications, the author drew on discussions with national and international colleagues in his role as convenor of the International Organization for Consultation–Liaison Psychiatry. Results: Physical/psychiatric comorbidity and somatization, the conditions in which consultation–liaison psychiatry specializes, are the commonest forms of psychiatric presentation in the community. They are as disabling as psychotic disorders, and comorbid depression in particular is a predictor of increased morbidity and mortality. Acknowledging this, the Second Australian National Mental Health Plan called for consultation–liaison psychiatry to be allowed to participate fully in the mental health care system. It stated that failure to define the term ‘severe mental health problems and mental disorders’ in the First Plan had led to some public mental health systems erroneously equating severity with diagnosis rather than level of need and disability. The call has been largely unheeded. The implication for patient care is both direct and indirect; the context created for psychiatry training by such a restricted focus is helping to perpetuate the neglect of such patients. This is a worldwide problem. Conclusions: Proactive involvement with consumers is required if the problem is to be redressed. At a service level, development of a seamless web of pre-admission/admission/post-discharge functions is required if patients with physical/psychiatric comorbidity and somatoform disorders are to receive effective care, and consultation–liaison psychiatry services are to be able to demonstrate efficacy. Focus on comorbidity in the Australian Third National Mental Health Plan may force resolution of the current problems.
Schizophrenic Patients in Different Treatment Settings During the Era of Deinstitutionalization: Three-Year Follow-Up of Three Discharge Cohorts in Finland
Authors: Honkonen Teija , Karlsson Hasse , Koivisto Anna-Maija , Stengård Eija , Salokangas Raimo K.R. 
Published: December 2004

Objective: We investigated differences in psychosocial and clinical characteristics, as well as the use of services, of schizophrenic patients in different treatment settings three years after their discharge from a psychiatric hospital. Furthermore, we examined secular changes in these phenomena during the era of rapid deinstitutionalization in Finland. Method: Three nationally representative samples comprised 3257 schizophrenic patients who had been discharged in 1986, 1990 and 1994. The patients were interviewed three years after discharge by each district's psychiatric professionals using a structured interview schedule specifically designed for the purposes of the present study. Psychosocial functioning was assessed on the Global Assessment Scale and on a modified version of the Medical Research Council Practices Profile. Results: In the 1990s, more patients with a poor clinical and psychosocial state were transferred from hospital to alternative outpatient facilities, such as sheltered workshops or supported residences. In successive cohorts, the proportion of patients who had dropped out of treatment decreased and the psychiatric and somatic state of the drop-outs improved. Conclusion: In general, the psychiatric treatment system has worked well for most deinstitutionalized patients. In the future, however, it is important that the quality of care and adequate resources in the alternative outpatient facilities are ensured.
Dual Action Antidepressants and Some Important Considerations
Authors: Gupta Ramesh K. , Tiller John W. , Burrows Graham D. 
Published: December 2004

Objective: To review controlled studies of long-term treatment and their side-effects with newer dual action antidepressants following an acute episode of major depression. Method: A literature review ( MedLine) was undertaken and references were selected for their relevance and methodology in describing their contribution to the examination of our objective. Result and Conclusion: Three dual action antidepressants are identified: venlafaxine, mirtazapine and milnacipran. These are more effective and better tolerated than the older tricyclic antidepressants in the treatment of an acute episode of depression and in the prevention of relapse. They also offer advantages in that they lack autonomic side-effects of the tricyclics. However, sedation, nausea and sexual side-effects may occur with venlafaxine, and weight gain with mirtazapine.
Systematic review and meta‐analysis of clinical trials comparing endoscopic totally extraperitoneal inguinal hernioplasty with open repair of inguinal hernia
Authors: Lau Hung , Patil Nivritti G. , Lee Francis Chan‐Wing 
Published: December 2004

Objective:  Endoscopic totally extraperitoneal inguinal hernioplasty (TEP) has been gaining in popularity in recent years. However, there has been little data to support the superiority of TEP over open repair. The objective of the present systematic review was to compare the effectiveness of open and endoscopic totally extraperitoneal approaches for the repair of inguinal hernias.Data sources:  A search of electronic databases, including MEDLINE, EMBASE and the Cochrane Library, was conducted to identify appropriate articles published between January 1990 and March 2002. In addition, a manual search for other studies was undertaken by reviewing the bibliographic reference list of the retrieved articles, contents of surgical journals and proceedings of conferences.Review methods:  Only those studies that reported randomized trials comparing the outcomes between TEP and open repair of inguinal hernias were included. The quality of recruited trials was assessed critically by using a scoring system modified by Evans and Pollock. The effect size of outcome parameters was estimated by odds ratio or weighted mean difference where appropriate.Results:  Ten randomized trials, which included 3212 patients, were recruited in the present systematic review. Meta‐analysis reviewed a significantly lower wound complication rate after TEP (odds ratio (OR) = 0.50, 95% confidence interval (CI) = 0.37–0.69, P < 0.001). In all trials, patients who underwent TEP reported less postoperative pain than those who underwent open repair. The pooled effect of four trials with usable data of pain score also favoured TEP (weighted mean difference (WMD) = −0.26, 95% CI = −0.36 to −0.16, P < 0.001). Patients returned to normal activities significantly earlier after TEP than those who underwent open repair (WMD = −0.23, 95% CI = −0.31 to −0.15, P < 0.001). However, the mean operative duration of TEP was significantly longer than that of open repair (WMD = 0.54, 95% CI = 0.23–0.85, P < 0.001). With regard to the recurrence rate, the overall meta‐analysis favoured TEP. However, when open repair was categorized into either suture herniorrhaphy or mesh hernioplasty, the recurrence rate after TEP remained superior to sutured herniorrhaphy (OR = 0.54, 95% CI = 0.31–0.96, P = 0.03) but was comparable to that following open mesh hernioplasty (OR = 1.76, 95% CI = 0.60–5.22, P = 0.09).Conclusions:  Meta‐analyses proved that TEP conferred significant early postoperative benefits, including a lower wound morbidity rate, faster return to normal activity and reduced postoperative pain at 1 week. With regard to the recurrence rate, TEP was superior to sutured herniorrhaphy, but showed a similar efficacy to open mesh hernioplasty. Future meta‐analyses of randomized controlled trials are required to evaluate the long‐term outcomes of TEP and open mesh hernioplasty.
Local and regional spatial distribution of an eruptive and a latent herbivore insect species
Authors: Ribeiro Katia T. , Codeço Cláudia T. , Fernandes G. Wilson 
Published: December 2004

Abstract  In this work, we investigated the spatial distribution of two sessile insect herbivores over the entire range of their host plant, Coccoloba cereifera, a sclerophyllous shrub endemic to Serra do Cipó, Brazil. The two insects have very distinct life histories and dispersal behaviours and we hypothesized that their classification into behavioural syndromes could be used to predict their spatial distribution patterns. Abgrallaspis cyanophylli (Homoptera) is an armoured scale insect that fits well into the eruptive syndrome. Stenapion aff. contrarium (Coleoptera) is a petiole borer with wide search capabilities, which fits into the latent syndrome. We expected that Abgrallaspis would follow the host plant aggregation pattern whereas Stenapion would be distributed more uniformly through the region and be less affected by host aggregation. We counted the number of attacked and non‐attacked ramets within two perpendicular belt transects as well as within a 20 m × 20 m quadrat placed over a dense shrub aggregation. Local quadrat covariance methods were used to estimate the spatial pattern of each insect. At fine scales, we found Stenapion evenly distributed over the host plant and Abgrallaspis with a significantly aggregated pattern. This finding is in accordance with our hypothesis. At larger scales, however, this pattern was lost and the results were largely variable. We conclude that the classification of insects into behavioural syndromes may be useful to predict distribution patterns at fine scales. At larger scales, however, history and chance events may be more important.
Spatial model for predicting the presence of cinnamon fungus (Phytophthora cinnamomi) in sclerophyll vegetation communities in south‐eastern Australia
Authors: Wilson B. A. , Lewis A. , Aberton J. 
Published: December 2004

Abstract  The pathogen Phytophthora cinnamomi causes extensive ‘dieback’ of Australian native vegetation. This study investigated the distribution of infection in an area of significant sclerophyll vegetation in Australia. It aimed to determine the relationship of infection to site variables and to develop a predictive model of infection. Site variables recorded at 50 study sites included aspect, slope, altitude, proximity to road and road characteristics, soil profile characteristics and vegetation attributes. Soil and plant tissues were assayed for the presence of the pathogen. A geographical information systyem (GIS) was employed to provide accurate estimations of spatial variables and develop a predictive model for the distribution of P. cinnamomi. The pathogen was isolated from 76% of the study sites. Of the 17 site variables initially investigated during the study a logistic regression model identified only two, elevation and sun‐index, as significant in determining the probability of infection. The presence of P. cinnamomi infection was negatively associated with elevation and positively associated with sun‐index. The model predicted that up to 74% of the study area (11 875 ha) had a high probability of being affected by P. cinnamomi. However, the present areas of infection were small, providing an opportunity for management to minimize spread into highly susceptible uninvaded areas.
Boat harbour design can exacerbate hull fouling
Authors: Floerl Oliver , Inglis Graeme J. 
Published: December 2004

Abstract  Hull fouling is a major cost for owners of small vessels and an important pathway for the spread of non‐indigenous aquatic species. The extent of fouling depends on a hull's susceptibility to recruitment by aquatic organisms and the local availability of competent planktonic propagules (‘propagule pressure’). Management strategies have typically been concerned with increasing resistance of the hull to recruitment through the use of toxic paints. Here we tested the hypothesis that fouling is influenced by the design of the harbour in which the boat is moored. We compared recruitment of sessile invertebrates to available surfaces in two types of recreational boat harbours: marinas that were partially enclosed by a permanent breakwall, and marinas that lacked breakwalls. Recruitment in the marinas was compared to coastal reference sites that were not used for mooring. At each location, recruitment tiles were deployed for 4 weeks on four separate occasions over a period of 2 years. Measurements of current velocities and spatial patterns of water flow at each location showed that permanent breakwalls created complex patterns of circulation that retained water within the marina basin for up to 12 h d−1. Despite large regional and temporal variability in fouling over time, most organisms recruited in greatest numbers to surfaces in partially enclosed marinas, and were often several orders of magnitude more abundant in the enclosed marinas than in unenclosed marinas or coastal reference locations. Harbour design has an important influence on the rate at which fouling organisms recruit to available surfaces within marinas. Entrainment of water in enclosed marinas may limit the dispersal of planktonic propagules by advective currents but effectively increases propagule pressure to available surfaces, including resident boat hulls. This is likely to accelerate the development of hull‐fouling assemblages and increase the chances of transport of non‐indigenous species that establish populations in the harbour basin.
Fire and flood: Soil‐stored seed bank and germination ecology in the endangered Carrington Falls Grevillea (Grevillea rivularis, Proteaceae)
Authors: Pickup Melinda , McDougall Keith L. , Whelan Robert J. 
Published: December 2004

Abstract  Seed germination is dependent on the interaction between the dormancy state of a seed and the presence of favourable environmental conditions. Thus, the spectacular pulse of seedling recruitment in many Australian vegetation communities following disturbances such as fire can be attributed to changes in microsite conditions and/or the dormancy‐breaking effect of the disturbance on accumulated seed banks. Grevillea rivularis is a threatened species endemic to the area immediately above Carrington Falls in the NSW Southern Highlands. Most of the population is confined to the riparian vegetation zone in woodland and heath, and is therefore subject to periodic disturbance from fire and flood. For this species, a pulse of seedling recruitment has been recorded after fire, flood and mechanical soil disturbance. The aims of this study were to examine the density and vertical distribution of the soil‐stored seed bank and to investigate the role of heat and scarification as cues for germination of fresh and soil‐stored seed. There was a large seed bank under the canopies of established individuals (194 ± 73 seeds m−2) and most seeds were found in the 0–2 cm and leaf‐litter layers of the soil profile. The germination response of soil‐stored and fresh seed was examined using a hierarchical series of laboratory experiments. Seeds of G. rivularis showed marked dormancy polymorphism. Thirty‐six percent of soil‐stored seed germinated without treatment, whereas no untreated fresh seeds germinated. Scarification or heating caused significant germination of dormant soil‐stored seed, but only scarification resulted in germination of dormant fresh seeds. These results highlight important differences in the dormancy state of soil‐stored and fresh seed. Thus, being a riparian species in a fire‐prone environment, the dormancy mechanisms in seeds of G. rivularis suit this species to disturbance by both fire and flood.
Experimental determination of seed emergence and carry‐over in the soil seed bank of the herbaceous perennial, Trachymene incisa (Apiaceae)
Authors: Wardle Glenda M. 
Published: December 2004

Abstract  Many populations of herbaceous perennial plants contain seeds stored in a soil seed bank. The contribution of seeds to population persistence is an important parameter in population models but germination rates of known‐age seeds are difficult to obtain because individual seeds cannot easily be followed. Although Trachymene incisa Rudge plants produce copious seeds that are dispersed into the soil, the existence of a seed bank has not been confirmed. To quantify the potential for a seed bank fresh seeds of T. incisa were sown into experimental seed banks in the eucalypt‐dominated Agnes Banks Woodland in western Sydney, NSW. A recent fire provided the opportunity to compare germination in the burnt and unburnt vegetation. Density of seed sowing and time of maturation/dispersal of seeds were manipulated in 75 seed cages. Emergence of seeds after 5 months was significantly higher for the earliest planting date but after 1 year, germination of seeds planted in the later weeks increased, and the final germination for all weeks was 28%. Density of sowing and the recent fire did not affect emergence. A second experiment planted over a broader time span (9 weeks instead of 3 weeks) confirmed the effect of planting date but also found significant spatial variation on a scale of tens of metres. Laboratory germination rates of over 70% confirmed that the seeds were viable and non‐dormant when sown in the field cages. The carry‐over of non‐germinated seed in the soil seed bank is estimated to be about 70% after 2 years, implying that a cohort of seeds would not be depleted through germination alone for up to 40 years. The potential for a long‐lived seed bank in this species is interesting because the plants are also capable of resprouting from their rootstock after fire, giving them characteristics of both resprouters and seeders.
Woody overstorey effects on soil carbon and nitrogen pools in South African savanna
Authors: Hudak A. T. , Wessman C. A. , Seastedt T. R. 
Published: December 2004

Abstract  Woody plant encroachment in savannas may alter carbon (C) and nitrogen (N) pools over the long‐term, which could have regional or global biogeochemical implications given the widespread encroachment observed in the vast savanna biome. Soil and litter %C and %N were surveyed across four soil types in two encroached, semi‐arid savanna landscapes in northern South Africa. Litter at sampling points with a woody component had a higher %N and lower C : N ratio than litter at solely herbaceous points. Severely encroached areas had lower C : N ratios throughout the soil profile than less encroached areas. Soil %C and %N were highly influenced by soil texture but were also influenced by the presence of a woody overstorey, which increased surface soil %C on three soil types but decreased it on the most heavily encroached soil type. Soil C sequestration may initially increase with bush encroachment but then decline if bush densities become so high as to inhibit understorey grass growth.
Immediate impacts of invasion by Wasmannia auropunctata (Hymenoptera: Formicidae) on native litter ant fauna in a New Caledonian rainforest
Authors: Le Breton J. , Chazeau J. , Jourdan H. 
Published: December 2004

Abstract  For the last 30 years, Wasmannia auropunctata (the little fire ant) has spread throughout the Pacific and represents a severe threat to fragile island habitats. This invader has often been described as a disturbance specialist. Here we present data on its spread in a dense native rainforest in New Caledonia. We monitored by pitfall trapping the litter ant fauna along an invasive gradient from the edge to the inner forest in July 1999 and March 2000. When W. auropunctata was present, the abundance and richness of native ants drops dramatically. In invaded plots, W. auropunctata represented more than 92% of all trapped ant fauna. Among the 23 native species described, only four cryptic species survived. Wasmannia auropunctata appears to be a highly competitive ant that dominates the litter by eliminating native ants. Mechanisms involved in this invasive success may include predation as well as competitive interactions (exploitation and interference). The invasive success of W. auropunctata is similar to that of other tramp ants and reinforces the idea of common evolutionary traits leading to higher competitiveness in a new environment.
Responses of ant communities to experimental fire regimes on rangelands in the Victoria River District of the Northern Territory
Authors: Hoffmann Benjamin D. 
Published: December 2004

Abstract  Fire is a significant feature of Australia's savannas. Its use is being encouraged for cattle rangeland management, but there is little knowledge of the ecological effects of prescribed fire regimes on native biodiversity. The responses of ant communities to five experimental fire regimes over 2 years are reported from the Victoria River District in the semi‐arid tropics of northern Australia. The experiment was stratified at two levels: soil type (red and black) and fire treatment (unburnt; burnt twice in successive years in early (May) or late (October) dry season and unburnt thereafter; and burnt twice, 3 years apart, in early or late dry season). Ants were sampled twice in April, corresponding with the end of the 1997 and 1998 wet seasons. Ant species richness was not responsive to fire treatment, but reduced with time since fire on black soil. Total ant abundance also reduced with time since fire on the black soil, with significant different abundances in burnt versus unburnt plots in the 1998 sample. Soil type and sampling time had the greatest influence on ant community composition in multivariate analysis than did fire regime, although there were moderate gradients of time since fire with the black soil plots. The abundance of 19 species were significantly different between fire regimes in anova, 13 on red soil and six on black soil. The abundance of eight species (four each on red and black soil) changed significantly with time since fire, with seven promoted by burning. Ant functional group profiles changed little with fire. Total ant abundance and richness had significant relationships with key pasture species and vegetative variables. The responses of ants largely recapitulated those of plants, birds and reptiles on the same plots. It is envisaged that ants will have an important role to play in the sustainable management of Australia's rangelands aiding the off‐reserve conservation of biodiversity.
Refuge sites used by the scincid lizard Tiliqua rugosa
Authors: Kerr Gregory D. , Bull C. Michael , Burzacott Dale 
Published: December 2004

Abstract  We examined microhabitat use by the Australian scincid lizard Tiliqua rugosa (the sleepy lizard) in chenopod shrubland. Thirty radiotagged lizards were followed during their spring period of activity (September–November 2000). Characteristics of refuges used by the lizards were compared with the perennial woody plants in 10 10 m × 10 m randomly located quadrats at each of the three sites in the study area. We found that sleepy lizards used multiple refuge sites. Perennial woody bushes constituted an important habitat component for both active and inactive lizards. Use of refuge sites by the lizards was non‐random. They used large bushes with foliage in contact with the ground (‘dome shaped’), and they sheltered under thorny bushes more frequently than expected if choice was random. Bushes that were used repeatedly tended to be larger and were more likely to be dome‐shaped. Under these large and dome‐shaped bushes, daytime temperatures were lower than under smaller bushes. Refuge use was modified as the season progressed, with lizards using larger bushes and a greater proportion of dome‐shaped bushes later in the season. We suggest that sleepy lizards are modifying their refuge site use as ambient temperatures increase, based on microclimatic needs, implying an ability to discriminate among bushes.