Segui questo link per vedere altri tipi di pubblicazioni sul tema: Wool industry Australia Quality control.
Articoli di riviste sul tema "Wool industry Australia Quality control"
Cita una fonte nei formati APA, MLA, Chicago, Harvard e in molti altri stili
Vedi i top-50 articoli di riviste per l'attività di ricerca sul tema "Wool industry Australia Quality control".
Accanto a ogni fonte nell'elenco di riferimenti c'è un pulsante "Aggiungi alla bibliografia". Premilo e genereremo automaticamente la citazione bibliografica dell'opera scelta nello stile citazionale di cui hai bisogno: APA, MLA, Harvard, Chicago, Vancouver ecc.
Puoi anche scaricare il testo completo della pubblicazione scientifica nel formato .pdf e leggere online l'abstract (il sommario) dell'opera se è presente nei metadati.
Vedi gli articoli di riviste di molte aree scientifiche e compila una bibliografia corretta.
1
Bullard, G. K., R. J. Roughley e D. J. Pulsford. "The legume inoculant industry and inoculant quality control in Australia: 1953 - 2003". Australian Journal of Experimental Agriculture 45, n. 3 (2005): 127. http://dx.doi.org/10.1071/ea03159.
Testo completoAbstract (sommario):
Fifty years have passed since the first commercial inoculants were manufactured in Australia. Before 1953, various Government Agencies supplied mostly agar cultures with New South Wales Department of Agriculture issuing the first peat-based inoculants. There are no data to indicate the quality of these inoculants, but in the early commercial cultures rhizobia were often outnumbered by contaminants and field failures were widespread. A comprehensive system of quality control was developed from discussions between CSIRO and the University of Sydney. Succeeding quality control bodies have continued on the basis of the original scheme. It set inoculant standards, approved and supplied mother cultures to manufacturers annually, tested all batches of peat inoculants before sale and sampled inoculants at the point of sale. In this paper we describe the history of Australian legume inoculants, list the commercial firms and key people involved and the period during which they were active. We tabulate the strains involved, indicate the period of their use and highlight some of the problems encountered with them and with inoculant production. We indicate the personnel who have been particularly active in the quality control of inoculants, the funding bodies who have supported the work and stress the reliance of the control laboratories on the help of many agricultural scientists in Australia. An important part of the control scheme has been the implementing of standards without resort to legislation. This has depended on the cooperation of the manufacturers involved and has allowed flexibility in applying the standards.
2
Walters, A. D. "Coal Preparation Developments in Indonesia and Australia". Energy Exploration & Exploitation 13, n. 4 (agosto 1995): 361–75. http://dx.doi.org/10.1177/014459879501300407.
Testo completoAbstract (sommario):
There is considerable development within the coal processing industries of both Indonesia and Australia. Indonesia is rapidly becoming a major coal producer of thermal coal and there is little need for conventional coal preparation of the generally low ash coal. However, much of Indonesia's lower grade coal is high moisture, high volatile sub-bituminous and new methods of thermal moisture reduction and briquetting will have to be used to increase quality, particularly for export. The coal briquetting industry in Indonesia is also planned to grow dramatically to some 4 M tpy to conserve Indonesia's oil products. Australia's mature coal industry has been carrying out a considerable amount of practical research and development with programmes that will result in improved process control and optimization resulting in increases in yield and better quality control.
3
Besier, R. B., e S. C. J. Love. "Anthelmintic resistance in sheep nematodes in Australia: the need for new approaches". Australian Journal of Experimental Agriculture 43, n. 12 (2003): 1383. http://dx.doi.org/10.1071/ea02229.
Testo completoAbstract (sommario):
Sheep worm infections increasingly threaten the profitability of the Australian sheep industry as the prevalence and severity of anthelmintic resistance continues to rise. Field experiments have demonstrated that the use of drenches that are of reduced efficacy due to resistance can reduce wool production by 10% and significantly reduce sheep sale value. The major factor in benzimidazole (BZ) and levamisole (LV) resistance, and in part macrocyclic lactone (ML) resistance in Haemonchus contortus, is considered to be the excessive frequency of treatment. In Ostertagia circumcincta, ML resistance appears to be related chiefly to interactions between the environment and the time of treatment, where resistant worms surviving drenches are not significantly diluted by worms acquired after treatment. Resistance to the BZs and LV affects almost all Australian sheep farms, and on most drench efficacy is now below a useful level. ML resistance is common in O. circumcincta in Western Australia, and increasingly prevalent in H. contortus in summer rainfall regions. Closantel resistance is a major threat to H.�contortus control in northern New South Wales and southern Queensland. The organophosphate naphthalophos, especially when used in combination with other compounds, has proved useful although variable in efficacy. It is essential that the sheep industry adopts approaches that minimise reliance on chemical control, such as the breeding of worm resistant sheep, use of specific grazing strategies for worm control and apply flock treatment tactics to minimise further resistance development. New non-chemical technologies under development are also expected to contribute to more sustainable worm control. Nutritional regimens that minimise the impact of worm infections and enhance the immune response require investigation and integration into sustainable control practices.
4
Mody, Karishma T., Bing Zhang, Xun Li, Ritesh Jain, Peng Li, Peter James, Timothy J. Mahony, Zhiping Xu e Neena Mitter. "Topical RNAi for Sustainable Animal Health". Proceedings 36, n. 1 (7 aprile 2020): 170. http://dx.doi.org/10.3390/proceedings2019036170.
Testo completoAbstract (sommario):
Animal health measures mainly rely on vaccination or chemical control for major pests and pathogens, causing issues of residue, toxicity and development of resistance. For example, control of Sheep flystrike and lice-infestation affecting the Australia’s sheep/wool industry (>3.5 B) have developed resistance to nearly all control chemicals used in the past. Topicals RNAi provides an innovative clean-green, non-toxic, environmentally sustainable biological control solution. Biodegradable clay particles as carriers can be used to deliver double stranded RNA (dsRNA), the key trigger molecule of RNA interference pathway. As an early proof of concept, we investigated the stability dsRNA loaded on two types of Clay particles: Clay 1 (releases dsRNA under acidic conditions) and Clay 2 (releases dsRNA under alkaline conditions) on cattle hide. Cattle skin was treated with Cy3 labelled dsRNA alone and Cy3 labelled dsRNA loaded on Clay1 or Clay2. The skin samples treated with the Cy3 formulations were imaged using confocal microscopy. Once imaged, the skin samples were washed and stored at room temperature for 5 days, later the samples were re-imaged to detect the fluorescent signal (Figure 1). The dsRNA loaded on clay particles was stable unlike naked Cy3-dsRNA which degraded and was not visible after washing. This increased inherent stability of the dsRNA molecules, combined with the environmental stability afforded by the Clay particles, offers promise to provide a sustainable solution for animal health. Topical RNAi can reduce reliance on trade withholding periods of meat/wool without chemical residues, enhance animal welfare and increase production of premium quality meat/wool, improve export potential, competitiveness and long-term profitability of livestock industry.
5
OLDLAND, JOHN. "The Clothiers’ Century, 1450–1550". Rural History 29, n. 1 (19 marzo 2018): 1–22. http://dx.doi.org/10.1017/s0956793317000188.
Testo completoAbstract (sommario):
Abstract:In the hundred years from 1450 to 1550, the great success enjoyed by the English woollen industry in continental markets was a result of clothiers organising the rural cloth industry in the West Country, Suffolk/Essex, the Kentish Weald and Newbury and its surrounds, to produce cloth that London merchants required. To do this they allocated extensive capital to cloth production: buying wools, sorting and dyeing them, organising their carding and spinning, putting the yarn out for weaving, and then in some cases owning the mills that fulled the cloth and finally shearing it in-house. The leading clothiers carried wool and cloth inventories, developed strong buying networks and offered merchants credit. Clothiers' control over production declined after 1550 as the government exercised greater control over cloth quality and clothiers' freedoms, and as price competition intensified from coarser cloths and new draperies.
6
Thorn, CW, e MW Perry. "Effect of chemical removal of grasses from pasture leys on pasture and sheep production". Australian Journal of Experimental Agriculture 27, n. 3 (1987): 349. http://dx.doi.org/10.1071/ea9870349.
Testo completoAbstract (sommario):
Pasture production, pasture composition and quality, and liveweight, body condition and wool growth of Merino weaner wethers were monitored over 2 seasons and at 2 stocking rates (4 and 8 sheep/ha) on a mixed annual grass-legume pasture sprayed with propyzamide to control grasses. Propyzamide virtually eliminated annual grasses from the pasture (less than 5 kg/ha of grass dry matter in spring v. 403 kg/ha on untreated pasture in 1981) and this carried over into the second season (61 kg/ha v. 647 kg/ha in spring 1982). Propyzamide treated pastures had less total dry matter (P = 0.05) throughout 1981: however, except for a single sample date, there was no effect of propyzamide on total available pasture in the second season. Increased growth of clover and capeweed compensated for the absence of the grasses. The higher stocking rate reduced available clover, capeweed and total dry matter (P = 0.05) throughout both years. Sheep grazing grass-free pastures had lower liveweights during winter in both years, but made compensatory gains during late spring and summer consistent with the higher quality (1.6 v. 1.07% nitrogen when sampled in January) of propyzamide treated pastures. In 198 1, wool growth rates were reduced at the higher stocking rate and total clean wool production was reduced from 4.55 kg/sheep at 4/ha to 3.65 kg/sheep at 8/ha. Pasture treatment had no effect on wool production in either year. The implications of using selective herbicides to remove the annual grass component of legume-based annual pastures in south-western Australia are dis cussed in relation to pasture and sheep production.
7
Polkinghorne, R., J. M. Thompson, R. Watson, A. Gee e M. Porter. "Evolution of the Meat Standards Australia (MSA) beef grading system". Australian Journal of Experimental Agriculture 48, n. 11 (2008): 1351. http://dx.doi.org/10.1071/ea07177.
Testo completoAbstract (sommario):
The Australian Beef Industry identified variable eating quality as a major contributor to declining beef consumption in the early 1990s and committed research funding to address the problem. The major issue was the ability to predict the eating quality of cooked beef before consumption. The Meat Standards Australia (MSA) program developed a consumer testing protocol, which led to MSA grading standards being defined by consumer score outcomes. Traditional carcass grading parameters proved to be of little value in predicting consumer outcomes. Instead a broader combination of factors forms the basis of an interactive prediction model that performs well. The grading model has evolved from a fixed parameter ‘Pathway’ approach, to a computer model that predicts consumer scores for 135 ‘cut by cooking method’ combinations for each graded carcass. The body of research work conducted in evaluating critical control points and in developing the model predictions and interactions has involved several Australian research groups with strong support and involvement from the industry.
8
Nadebaum, P., M. Chapman, S. Ortisi e A. Baker. "Application of quality management systems for drinking water quality". Water Supply 3, n. 1-2 (1 marzo 2003): 359–64. http://dx.doi.org/10.2166/ws.2003.0125.
Testo completoAbstract (sommario):
Over the past few years the water authorities in Australia have been applying the principles of quality management and risk management in their provision of drinking water of a safe and acceptable quality. These principles have been taken up by the regulatory authorities, and the Australian water industry is ensuring that drinking water guidelines, customer contracts, licences and auditing (both statutory and quality systems auditing), and appropriate quality management systems, are in place for drinking water quality management. A particular focus of this work has been the application of AS/NZS 4360 (Risk Management) and the principles of Hazard Analysis and Critical Control Points developed for the food industry. This paper discusses the important considerations in applying quality management systems to drinking water quality management within water authorities, and the key issues of how best to integrate these risk management systems with the business management systems of the water authority. A generally applicable model for drinking water quality management systems based on ISO 9002 and HACCP is described. The paper also discusses the process of how management systems already in place within a water authority can be assessed and improvements identified. The objective is that the management systems will be consistent with the authority’s existing business management systems, ISO 9001, the principles of HACCP and AS4360, and the expected requirements of the revised Australian Drinking Water Guidelines.
9
Skorykh, L. N., I. O. Fominova, A. V. Skokova e I. I. Dmitrik. "Association of GH gene polymorphism with meat quality traits in meat and wool sheep". Glavnyj zootehnik (Head of Animal Breeding), n. 8 (20 luglio 2022): 31–38. http://dx.doi.org/10.33920/sel-03-2208-04.
Testo completoAbstract (sommario):
Increasing the productivity and effi ciency of lamb production is a key factor in the competitiveness of the meat sheep industry. Therefore, in order to conduct sheep breeding more effectively it is necessary to apply new approaches to increase and improve the quality of products.Considerable interest are modern technologies involving the use of DNA markers, which are widely used in national breeding programs of a number of countries with developed animal husbandry and have a signifi cant impact on improving productivity indicators. A significant number of genes associated with meat productivity and meat quality have been identifi ed. However, in sheep breeding, information about the main genes or loci that affect the growth characteristics and productive traits of sheep is relatively limited. Due to the growing interest in the production of young mutton and lamb, priority is given to the study of genes that control meat productivity. The greatest interests are studies on the evaluation of the polymorphism of the growth hormone (GH) gene, which controls growth and development, as well as infl uencing the meat productivity of sheep. In this regard, the purpose of this work was research aimed at fi nding associations between polymorphic variants of the growth hormone gene and the qualitative characteristics of meat in meat and wool sheep of the genotype ½ Poll Dorset × ½ North Caucasian Meat and Wool breed bred in the Stavropol Territory. The data obtained when studying the histostructure of the m. Longissimus dorsi, depending on the genotypes of GH gene, indicate that the muscle tissue in individuals with AB and BB genotypes was characterized by a large number of muscle fi bers by 5,7 and 6,4 %, their smaller diameter by 7,6 and 9,2 %, and a lower content of connective tissue compared to animals with the genotype AA of GH gene.
10
Glass, Deborah, Christina Dimitriadis, Jessy Hansen, Fiona Hore-Lacy, Malcolm R. Sim e Ryan F. Hoy. "Changes to Silica Exposure Control Measures in the Artificial Stone Benchtop Industry in Victoria Australia". Safety and Health at Work 13 (gennaio 2022): S25. http://dx.doi.org/10.1016/j.shaw.2021.12.786.
Testo completo
11
Horton, B., e L. Hogan. "FlyBoss: a web-based flystrike information and decision support system". Animal Production Science 50, n. 12 (2010): 1069. http://dx.doi.org/10.1071/an10093.
Testo completoAbstract (sommario):
The FlyBoss system consists of comprehensive information on flystrike management and control, programs for assisting decision making, and sortable lists of products for preventing and treating flystrike. Readily accessible, up-to-date, best-practice information on flystrike is essential for effective, humane and economic management of flystrike by Australian wool producers, particularly those who are phasing out mulesing and those looking to adopt optimal insecticidal fly-control strategies. FlyBoss provides information on breeding and management to reduce flystrike susceptibility, effective methods of treating existing flystrike and flystrike prevention programs. The FlyBoss decision aids, which are based on simulation models and incorporate local weather data and sheep susceptibility factors, can assist sheep farmers who wish to optimise sheep management, chemical treatment and non-chemical options to minimise the risk of flystrike. FlyBoss also contains comprehensive information on fly biology, sheep and environmental factors associated with flystrike and information on appropriate chemicals for various situations. FlyBoss draws on expertise from organisations throughout Australia to provide the sheep industry with easily accessible, current and locally targeted information on flystrike management. The present report briefly describes the development of FlyBoss and associated workshops and provides an overview of current recommendations for the control and prevention of flystrike.
12
Gorlov, Ivan Fiodorovich. "Growth Hormone (GH) Gene Polymorphism and Its Association with Meat Productivity in Two Rough Wool Sheep Breeds Grown in Russia's Dry Zone". International Journal of Agriculture and Biology 25, n. 01 (1 gennaio 2021): 255–59. http://dx.doi.org/10.17957/ijab/15.1664.
Testo completoAbstract (sommario):
The article considers the methods of efficient use of the gene pool of rough wool sheep breeds in order to improve the level and quality of meat production. The research material was Edilbay (n=100) and Kalmyk fat-tailed sheep (n=100) breeds. The influence of the polymorphism of the genotypes of the growth hormone gene on meat indices were established; and the desired genotypes for further breeding work to increase their specific weight in the population structure were determined. The AB/GH genotype associated with the best meat production in carriers of this genotype has been identified as desirable. The results of the control slaughter have indicated Kalmyk fat-tailed rams of the AB/GH genotype to be superior to their AA/GH and BB/GH genotypes peers in terms of their pre-slaughter weight. The conducted research indicated the feasibility of genetic markers to optimize breeding programs in flocks of rough wool sheep in order to increase the meat production level. The obtained data confirmed the need to investigate the DNA markers associated with the productive qualities of sheep to get greater efficiency of breeding and enhance profitability of the sheep industry. © 2021 Friends Science Publishers
13
Kelly, R. W., J. C. Greeff e I. Macleod. "Lifetime changes in wool production of Merino sheep following differential feeding in fetal and early life". Australian Journal of Agricultural Research 57, n. 8 (2006): 867. http://dx.doi.org/10.1071/ar05312.
Testo completoAbstract (sommario):
In commercial Merino farming, a major determinant of profitability is quantity and quality of wool production. We tested the hypothesis that the level of feed restriction commonly encountered by autumn/early winter lambing Merino ewes in southern Australia was sufficient to have a detrimental effect on their progeny’s lifetime wool production. Two periods of feed restriction of the dams were tested, viz. from day 50 to 140 of gestation (Expt 1), and from day 50 of pregnancy to weaning at 12 weeks of age (Expt 2). In order to reduce the numbers of experimental animals required, identical twin lambs were produced by cloning embryos. There was a total of 35 and 22 pairs of clones in Expts 1 and 2 that were recorded to 6.4 and 4.4 years of age, respectively. In Expt 1 it was estimated (i.e. conceptus-free weight) that the submaintenance (Sub-M) ewes lost 18 kg in weight compared with 9 kg by the Control (C) ewes over the period of differential feeding. In Expt 2 the Sub-M ewes lost 10 kg during pregnancy and 10 kg during lactation, compared with a loss of 3 kg and a gain of 4 kg over the same period in the C ewes. Gestation length was 1.3 days shorter (P < 0.01) in the Sub-M than C ewes in Expt 1. Birthweights of the Sub-M lambs were 0.5 kg lighter than the C lambs in Expts 1 (P < 0.01) and 2 (P < 0.05). At 12 weeks of age, liveweights of the lambs in the Sub-M and C treatments were 24.2 and 25.9 kg in Expt 1 (P < 0.01) and 14.0 and 25.0 kg in Expt 2 (P < 0.001). Corresponding liveweights at 4 months of age were 30.9 and 32.5 kg (P < 0.01) and 19.9 and 29.7 kg (P < 0.001), the Sub-M animals producing less clean wool (0.1 and 0.4 kg, P < 0.01 and < 0.001, Expts 1 and 2, respectively), that was finer in Expt 2 (2.7 μm, P < 0.001) than their C counterparts. Throughout the rest of the study the Sub-M animals in Expt 2 (but not Expt 1) were on average 3.2 kg lighter (P ranging from < 0.05 to < 0.001) than C animals. In both experiments the ratio of secondary to primary wool-producing follicles was lower (1.1–2.6 units, P < 0.001) in the Sub-M than C animals. These differences led to (P < 0.05) lower significantly adult clean wool production of 0.17 kg (Expt 1) and 0.24 kg (Expt 2) per annum. There was no significant interaction between nutritional treatment and age of the animal for clean wool production. Within experiments there were no significant differences between nutritional treatments in any of the wool quality measurements. However, when fibre diameter data for both experiments were combined for 3.4 and 4.4 years of age, the Sub-M animals were significantly broader (0.3 μm, P < 0.01) when compared with the C animals. We conclude that Sub-M feeding of the pregnant ewe will permanently affect liveweight, the wool follicle population, and wool production and quality, in Merino sheep. Extension of the period of under feeding into lactation (Expt 2) appears to increase the amplitude of the differences in young animals, which is largely overcome by the time the animal reaches 2.4 years of age.
14
Premier, Robert, e Scott Ledger. "Good Agricultural Practices in Australia and Southeast Asia". HortTechnology 16, n. 4 (gennaio 2006): 552–55. http://dx.doi.org/10.21273/horttech.16.4.0552.
Testo completoAbstract (sommario):
Quality assurance (QA) in the horticultural industry has become well established in Australia; on-farm hazard analysis critical control point (HACCP)-based plans have been adopted due to pressures from supermarkets and other buyers, including fresh markets. Supermarkets' own systems and more general QA systems have been used by growers to meet these new requirements. Two QA systems, Freshcare and Safe Quality Food, have been introduced across the country with moderate success. A review of quality assurance parameters such as chemical residues and microbiological contaminants suggest that these QA systems have achieved some level of assurance. Local pressures, however, are not the only concern when it comes to QA. International demand for safe quality fruit and vegetables has meant that QA systems now need to be designed to satisfy export requirements. In addition to food safety, international demands must also address the environment and workers' health and safety. Many Southeast Asian governments have taken the initiative and developed country-specific QA systems to satisfy export markets and that are suitable for their farmers to use. Countries with schemes in place include Malaysia, Thailand, Indonesia, and Singapore, with other countries, such as the Philippines and Brunei Darussalam, in the process of introducing schemes. This presentation will discuss the status of QA systems in Australia and Southeast Asia, including the pressures behind their establishment, and the major differences between them. The presentation will also focus on the attempt by Southeast Asian governments to address a uniform standard through the development of the Association of Southeast Asian Nations (ASEAN) good agricultural practice (GAP), a GAP standard suitable for use by all 10 ASEAN member countries.
15
Adams, N. R., e P. B. Cronjé. "A review of the biology linking fibre diameter with fleece weight, liveweight, and reproduction in Merino sheep". Australian Journal of Agricultural Research 54, n. 1 (2003): 1. http://dx.doi.org/10.1071/ar02059.
Testo completoAbstract (sommario):
There is increasing economic pressure on the Merino industry to grow finer wool and at the same time to turn off more sheep meat. Fleece weight generally decreases with finer fibre diameters, so theoretically, finer wool sheep should be able to partition more nutrients to reproduction and muscle growth. However, complex and often indirect mechanisms appear to prevent this in practice. This review summarises the available data on genetic and phenotypic relationships between wool fibre diameter and fleece weight, liveweight, fatness, and reproductive performance, and develops mechanistic hypotheses for these relationships that could be tested experimentally.Selection for reduced fibre diameter may decrease liveweight, fatness, and reproductive performance. These characteristics are also affected by the availability of nutrients, and finer fibre diameter may affect nutrient metabolism through 2 adaptations that tend to maintain fleece weight: an increase in follicle density and/or an increase in relative fibre length. These act in different ways. Follicle density may affect final body size through linkages established during fetal development. Increased fibre growth rate requires an increase in protein synthesis rate in the skin, which in turn may affect whole-body protein turnover rate and the sensitivity of tissues to insulin. Other pathways potentially affected by fibre diameter include the control of feed intake, prenatal programming of insulin sensitivity, and a reduced responsiveness of tissues to nutrient supply. However, none of these mechanisms accounts for the reports of an increased proportion of dry ewes in fine wool sheep, particularly if run in environments that experience periods of low quality pasture.Although associations between fibre diameter and growth rate, fatness, and reproduction rate are repeatable, there are not yet enough data for such associations to be realistically accounted for in breeding goals. More experimentation and a better knowledge of the causative relationships will facilitate development of finer wool sheep for environments where sheep turnoff normally provides a significant proportion of income from the sheep enterprise. Such mechanistic understanding will facilitate the development of molecular techniques for targetted selection, and the identification of more useful attributes for a quantitative genetics approach to improving simultaneously the profitability from both wool and meat.
16
Stenton, Marie, Veronika Kapsali, Richard S. Blackburn e Joseph A. Houghton. "From Clothing Rations to Fast Fashion: Utilising Regenerated Protein Fibres to Alleviate Pressures on Mass Production". Energies 14, n. 18 (8 settembre 2021): 5654. http://dx.doi.org/10.3390/en14185654.
Testo completoAbstract (sommario):
Sustainable methods of practice within the fashion and textile industry (FTI) often strive to employ a circular economy that aims to eliminate waste through the continual use of resources. Complex problems such as waste, consumption, and overproduction are heavily intertwined; the main aim of this paper is to report on research focused on re-examining the potential of food waste streams as a commercially viable and circular source of raw materials for the FTI. Herein, regenerated protein fibres (RPFs) from food production waste streams rich in protein have been chosen as the main topic of focus. RPFs have a rich and relevant history from a local manufacturing perspective during wartime and post-war clothing rationing (1941–1949) in the UK. RPFs were used to meet civilian needs for wool-based textiles as part of a wider series of ‘make do and mend’ strategies designed to manage the consumption of new textile products. However, RPFs demonstrated inferior quality in terms of durability when compared to wool-based textiles, a significant contributing factor to the consequent commercial phasing out of RPFs. In today’s take–make–waste model, the FTI landscape can be defined by speed, from slow (high-quality materials and construction, long-lasting products) to fast (seasonal, disposable, low-quality materials and construction), the latter infamous for dire environmental impacts. A key objective of this research is to review the association of quality and longevity within the context of a local and circular fashion economy in which textile quality and lifecycle analysis are holistically matched to the longevity of the textile, garment, or product to reduce waste across the supply chain.
17
Hocquette, J. F., I. Legrand, C. Jurie, D. W. Pethick e D. Micol. "Perception in France of the Australian system for the prediction of beef quality (Meat Standards Australia) with perspectives for the European beef sector". Animal Production Science 51, n. 1 (2011): 30. http://dx.doi.org/10.1071/an10045.
Testo completoAbstract (sommario):
Australia has developed the Meat Standards Australia (MSA) grading scheme to predict beef quality for consumers. This system is comprehensive, accurate and scientifically supported. It is based on the development and the use of a research database with a large amount of data, including the use of a large-scale consumer testing system with cuts cooked in different ways as well as information on the corresponding animals, carcasses and cuts. The system is also based on statistical analyses carried out on this database to identify the critical control points of beef palatability which is indicated for individual muscles and for a specific cooking method and aging time. Experts involved in the French beef industry were questioned about their knowledge and views on the application of the MSA system. They recognised many qualities of the MSA system and it was judged as original, relevant and sufficiently mature in its application, and favouring scientifically based prediction of beef quality rather than replying on tradition and perceptions of quality. It was also thought to be credible, flexible and open ended. However, it was still considered to possess some weak points. Thus, while its development in Australia at the farmer and abattoir level has been impressive in a relatively short time, the final delivery of precise quality grades to consumers is still lacking at retail due to only partial implementation of the system. Its adaptability to France would be difficult due to the complexity of the French beef industry and market. But, the program is uniquely innovative and deserves consideration. It will facilitate awareness and induce much needed changes to underpin the preservation and the development of the beef sector in France and eventually in Europe.
18
Rao, T. V. S., e S. K. Bandyopadhyay. "A comprehensive review of goat pox and sheep pox and their diagnosis". Animal Health Research Reviews 1, n. 2 (dicembre 2000): 127–36. http://dx.doi.org/10.1017/s1466252300000116.
Testo completoAbstract (sommario):
AbstractSheep and goats occupy a premier place in the livestock industry and contribute significantly to the world economy. Their populations are threatened by a number of health hazards, among the most notable of which are goat pox and sheep pox. These diseases inflict substantial losses in terms of reduced productivity and lower quality of wool and leather. They pose a major obstacle to the intensive rearing of sheep and goats and considerably hamper international trade. A comprehensive knowledge of goat pox and sheep pox would help in the diagnosis, prevention and control as well as the management of these diseases in a proper and effective manner. Although the two diseases are easily identified from the clinical signs and host species affected, laboratory tests are needed for confirmation. A battery of simple but highly efficient diagnostic methods and reagents is available for goat pox and sheep pox. However, the best way to control these diseases is the prophylactic immunization of all susceptible animals with a potent and efficacious vaccine, especially in areas where these diseases are endemic.
19
Roy, Peter. "Maritime offshore operations—occupational noise monitoring, assessment and control". APPEA Journal 49, n. 2 (2009): 569. http://dx.doi.org/10.1071/aj08042.
Testo completoAbstract (sommario):
With increasing emphasis on occupational health as a component of maritime safety case requirements for Australia, the National Offshore Petroleum Safety Authority (NOPSA), in keeping with their goal of improving health and safety outcomes across the industry, has ramped up their expectations on noise management plans (NMP). Now the expectation includes noise risk assessments and evaluation and implementation of feasible engineering noise controls, and NOPSA have added scrutiny of ototoxic substances as well, all of which parallel international trends. NOPSA surveys have found rather poor industry compliance with noise management requirements overall, and have stated that they will continue to promote the issues and will not hesitate to take enforcement action to improve compliance. Occupational noise induced hearing loss (NIHL) is 100% permanent and 100% preventable. Failing to prevent NIHL has significant human, economic, legal and operational impacts. NIHL results in diminished quality of life including isolation and communication problems that affect social interactions. The economic effects of NIHL include lost time and decreased productivity, loss of otherwise qualified and experienced workers through medical disqualification, workers’ compensation costs and disability settlements, retraining costs and expenses related to medical intervention and treatment. Noise-impaired communications affect workplace operational and health and safety performance, and noisy ship and maritime platform accommodations and common areas adversely affect staff comfort, fatigue, morale and general well-being.
20
Hostetler, Stephen, e Tom Loutit. "The Deep Australian Water Resource Information System (DAWRIS) and the petroleum". APPEA Journal 49, n. 2 (2009): 599. http://dx.doi.org/10.1071/aj08072.
Testo completoAbstract (sommario):
The total sustainable yield of groundwater in Australia is not known even though many regions of Australia rely on groundwater for urban and rural water supply. Knowledge of deep groundwater resources is particularly poor, with little known about reservoirs below about 100 metres depth. The resource industries often discover and produce large volumes of groundwater that is subsequently evaporated, reinjected, cleaned and discharged into the ocean or streams, or supplied to urban and rural users. In addition, geothermal power and carbon capture and storage projects are also reliant on understanding groundwater processes at depth. Despite this need, Australia as a nation does not have an information system that provides data and interpretation on all groundwater reservoirs from the basement to the surface. The Deep Australian Water Resource Information System (DAWRIS) is designed to integrate existing groundwater knowledge with previously under-utilised datasets (such as basin analysis, petroleum wells, seismic sections and geophysics) to place deep groundwater within existing government water frameworks. In addition, DAWRIS will also use technologies developed and applied within the petroleum industry to assess groundwater resources. The challenge for DAWRIS is to build a consistent tectonostratigraphic framework (geofabric) in which to place observations on reservoir properties, groundwater sustainability and water quality. The geofabric will then act as a basis in which to predict these properties away from control points. The petroleum industry will be able to use DAWRIS to predict the volume and quality of groundwater co-production, plan remediation and reuse strategies, and to help shape Australia’s water agenda.
21
Lau, Katherine A., Torsten Theis, Alexa M. Kaufer, Joanna L. Gray e William D. Rawlinson. "A decade of RCPAQAP Biosecurity improving testing for biological threats in Australia". Microbiology Australia 41, n. 3 (2020): 145. http://dx.doi.org/10.1071/ma20039.
Testo completoAbstract (sommario):
Biosecurity is a term broadly applied to the protection, control and accountability of biological agents and toxins to minimise the risk of their introduction through natural, unintentional (accidents) or deliberate processes. Biosecurity protection involves the engagement of all stakeholders including government, public health networks, industry, and scientific community. While the Commonwealth Government primarily manages biosecurity, it is also a shared responsibility with State and Territory governments. Rapid, accurate diagnosis is essential to informing all levels of response to biosecurity threats. External quality assurance (EQA) through proficiency testing (PT) is an indispensable tool to allow assessment of laboratory performance. This ensures laboratory capability and capacity are in a constant state of readiness to effectively detect biological threats and reduce the impact and transmission of disease. Since 2009, the Royal College of Pathologists Australasia Quality Assurance Program (RCPAQAP) has been contracted by the Australian Government Department of Health to establish a proficiency testing program (PTP) for the detection of biological threat agents. Starting out as a PTP for the detection of Bacillus anthracis, RCPAQAP Biosecurity has undergone significant transformation, thereby building and enhancing laboratory preparedness. Alterations in the program have been in line with the changing landscape of biosecurity and other emerging infectious diseases across Australia, and worldwide.
22
Langston, Craig, e Weiwei Zhang. "DfMA: Towards an Integrated Strategy for a More Productive and Sustainable Construction Industry in Australia". Sustainability 13, n. 16 (17 agosto 2021): 9219. http://dx.doi.org/10.3390/su13169219.
Testo completoAbstract (sommario):
Design for manufacture and assembly (DfMA) is an important part of the future of the construction industry due to the promise of speed of project delivery, quality control, worker safety, and waste minimization onsite via the purposeful design for manufacture and assembly offsite. However, the adoption of DfMA in Australia has been slow. This paper investigates the barriers prohibiting widespread uptake and how digital construction will be a catalyst for improving use on commercial-scale projects. A total of six leading experts were interviewed to elicit their opinions, and seven recent case studies of high-rise modular apartment and hotel buildings constructed by Hickory were cross-referenced as evidence of DfMA capability. The experts suggested that the reasons for slow adoption in Australia were community mindset, government regulations and incentives, planning and building codes, unionization and business politics, finance, and supply chain management. The case studies suggest that compatible building type and transportation distance are also factors. These barriers can be addressed by the clever integration of building information modelling tools with lean construction processes as part of a proposed strategy leading to smarter (more productive) and better (more sustainable) outcomes predicated on growth in digital construction practices. The paper concludes with a proposed framework for change that conceptualizes the ‘ecosystem’ needed to support widespread DfMA in the Australian context, including the paradigm shift from building to manufacturing/assembly, the displacement of workers from onsite to offsite activity, and the expansion of interdisciplinary design and construct collaboration.
23
Lawrence, Susan, James Grove, Peter Davies, Jodi Turnbull, Ian Rutherfurd e Mark Macklin. "Historical dredge mining as a significant anthropomorphic agent in river systems: A case study from south-eastern Australia". Holocene 31, n. 7 (25 marzo 2021): 1158–74. http://dx.doi.org/10.1177/09596836211003272.
Testo completoAbstract (sommario):
Bucket dredging to mine and extract gold and tin from rivers is a global industry that has had a range of negative effects on physical environments. These include the destruction of riparian soil profiles and structures, artificial channel straightening and loss of in-stream biodiversity. In this paper we evaluate the immediate effects and long-term consequences of bucket dredging on rivers in Victoria and New South Wales during the period 1900–1950. High quality historical sources on dredge mining are integrated with geospatial datasets, aerial imagery and geomorphological data to analyse the scale of the dredging industry, evidence for disturbance to river channels and floodplains and current land use in dredged areas. The study demonstrates that the environmental impact of dredging was altered but not reduced by anti-pollution regulations intended to control dredging. An assessment of river condition 70–100 years after dredge mining ceased indicates that floodplains and river channels continue to show the effects of dredging, including bank erosion, sediment slugs, compromised habitat and reduced agricultural productivity. These findings have significant implications for river and floodplain management.
24
Braunack, M. V. "Cotton farming systems in Australia: factors contributing to changed yield and fibre quality". Crop and Pasture Science 64, n. 8 (2013): 834. http://dx.doi.org/10.1071/cp13172.
Testo completoAbstract (sommario):
This study was undertaken to identify factors in Australian cotton farming systems that influence yield and fibre quality of cotton and how these have changed with time after the wide adoption of Bollgard II® cultivars (containing the proteins Cry1Ac and Cry2Ab, providing easier control of Helicoverpa spp.) in the 2003–04 season. Data from Australian commercial cotton variety trials conducted from 2004 to 2011 were used to link management inputs, yield, and fibre quality. Restricted (residual) maximum likelihood (REML) and regression analyses were used to determine which factors had a significant effect on yield and fibre quality. Results showed that lint yield was significantly influenced by cultivar and growing region, and the interaction between region and the amount of applied nitrogen and phosphorus (kg ha–1), plant stand (plants ha–1), in-crop rainfall (mm) and the number of irrigations, season length (days), and days to defoliation. Generally, the same factors also influenced fibre quality. Regression analysis captured 41, 71, 50, 30, and 36% of the variability in lint yield, fibre length, micronaire, fibre strength, and trash, respectively, for irrigated systems. For dryland systems the variability captured was 97, 87, 77 80, and 78%, respectively. Changes in cotton farming systems from 2004 to 2011 have occurred with applied nitrogen fertiliser increasing under irrigation and decreasing under dryland systems. However, phosphorus fertiliser use has remained steady under irrigated and decreased under dryland systems, and the number of insect sprayings has decreased under both systems. Under irrigated systems, lint yield, fibre length, and trash levels increased while micronaire and fibre strength decreased. Under dryland systems, lint yield decreased while micronaire, fibre length, strength, and trash levels increased. All fibre quality parameters satisfied criteria that would not incur a penalty. The results considering which factors are the most important and which are of lesser importance provide some insight to changes in management in both irrigated and dryland systems and the effect on lint yield and fibre quality and provide some basis for future investment in research and development and extension to the Australian cotton industry.
25
Sutherland-Stacey, L., R. Dexter, B. McWilliams e K. Watson. "Real-time in-situ measurement of haemoglobin in wastewater". Water Science and Technology 60, n. 7 (1 ottobre 2009): 1683–89. http://dx.doi.org/10.2166/wst.2009.572.
Testo completoAbstract (sommario):
The meat processing industry generates large volumes of relatively high load wastewater. In New Zealand and Australia this wastewater is often pre-treated on site and then discharged to environmental waters or municipal sewers. Owing to the limited number of water quality parameters which can be measured in real-time it is often difficult for industry to optimise treatment processes or public bodies to monitor for water-quality compliance. Abattoir wastewater is often observed to be red in colour, owing to the presence of haemoglobin. Measurement of visible light absorption spectra of wastewater grab samples has for some time provided information about blood concentration. However such grab sampling techniques are piecemeal and cannot provide instantaneous time resolved signals which are required for process control or comprehensive monitoring. In this work an in-situ UV/VIS spectrometer is used to continuously determine the concentration of haemoglobin in wastewater arriving for treatment at two different Wastewater Treatment Plants (WWTPs). The data is of high temporal resolution- data recorded at the distant WWTPs allows for identification process events, such as the end of shift wash downs.
26
Colditz, I. G., D. L. Watson, R. Kilgour, D. M. Ferguson, C. Prideaux, J. Ruby, P. D. Kirkland e K. Sullivan. "Impact of animal health and welfare research within the CRC for Cattle and Beef Quality on Australian beef production". Australian Journal of Experimental Agriculture 46, n. 2 (2006): 233. http://dx.doi.org/10.1071/ea05211.
Testo completoAbstract (sommario):
Research within the health and welfare program of the Cooperative Research Centre for Cattle and Beef Quality has delivered important improvements to the Australian cattle industry. Vaccines to assist with the control of bovine respiratory disease were developed and commercialised from Australian isolates of Mannheimia haemolytica and pestivirus (mucosal disease). Our understanding of the benefits of weaning cattle by confinement and hand feeding in yards (yard weaning) has been consolidated, and yard weaning has been adopted as ‘best practice’ for cattle production in the temperate zones of Australia. The importance of good temperament for improved growth rates and reduced morbidity during feedlot finishing, and for adaptation to stressors such as road transport, has been demonstrated. In response to this knowledge, industry is increasingly measuring flight time for use in breeding programs and feedlot management. The risk to meat quality of stressors such as mixing unfamiliar cattle in the weeks preceding slaughter or acute stress in the last 15 min before slaughter has been described. Adoption of these findings through Quality Assurance schemes will assist in assurance for the community and for export markets of the welfare standards of the Australian cattle and beef industry. This review provides details of the experiments that led to these achievements and to some improved understandings of temperament and behaviour of beef cattle.
27
Zhu, Changzheng, e Wenbo Du. "A Research on Driving Factors of Carbon Emissions of Road Transportation Industry in Six Asia-Pacific Countries Based on the LMDI Decomposition Method". Energies 12, n. 21 (31 ottobre 2019): 4152. http://dx.doi.org/10.3390/en12214152.
Testo completoAbstract (sommario):
The transportation industry is the second largest industry of carbon emissions in the world, and the road transportation industry accounts for a large proportion of this in the global transportation industry. The carbon emissions of the road transportation industry in six Asia-Pacific countries (Australia, Canada, China, India, Russia, and the United States) accounts for more than 50% of this in the global transportation industry. Therefore, it is of great significance to study driving factors of carbon emissions of the road transportation industry in six Asia-Pacific countries for controlling global carbon emissions. In this paper, the Logarithmic Mean Divisia Index (LMDI) decomposition method is adopted to analyze driving factors on carbon emissions of the road transportation industry in six Asia-Pacific countries from 1990 to 2016. The results show that carbon emissions of the road transportation industry in these six Asia-Pacific countries was 2961.37 million tons in 2016, with an increase of 84.43% compared with those in 1990. The economic output effect and the population size effect have positive driving influences on carbon emissions of the road transportation industry, in which the economic output effect is still the most important driving factor. The energy intensity effect and the transportation intensity effect have different influences on driving carbon emissions of the road transportation industry for these six Asia-Pacific Countries. Furthermore, the carbon emissions coefficient effect has a relatively small influence. Hence, in order to effectively control carbon emissions of the road transportation industry in these six Asia-Pacific countries, it is necessary to control the impact of economic developments on the environment, to reduce energy intensity by promoting the conversion of road transportation to rail and water transportation, and to lower the carbon emissions coefficient by continuously improving vehicle emission standards and fuel quality.
28
Forssman, Bradley, Leena Gupta e Graham Burgess. "A case study of the evaluation of a public health intervention". Australian Health Review 30, n. 4 (2006): 458. http://dx.doi.org/10.1071/ah060458.
Testo completoAbstract (sommario):
Large public health interventions to control infectious disease outbreaks are common, but rigorous evaluation to improve the quality and effectiveness of these is rarely undertaken. Following a large community-based clinic to prevent a hepatitis A outbreak, a multifaceted and multidisciplinary evaluation was conducted involving consumers, health professionals and industry partners. The results of this evaluation were used to produce practical operational guidelines for the planning and conduct of future interventions. These guidelines have been distributed to all public health units in New South Wales and may be included in the next edition of the NSW Health notifiable diseases manual. The evaluation approach can be applied to all public health interventions across NSW and Australia to assist in the development of operational guidelines, in order to increase the quality of public health action in outbreak prevention.
29
Lane, Michelle, Megan Mitchell, Kara S. Cashman, Deanne Feil, Sarah Wakefield e Deirdre L. Zander-Fox. "To QC or not to QC: the key to a consistent laboratory?" Reproduction, Fertility and Development 20, n. 1 (2008): 23. http://dx.doi.org/10.1071/rd07161.
Testo completoAbstract (sommario):
A limiting factor in every embryology laboratory is its capacity to grow ‘normal’ embryos. In human in vitro fertilisation (IVF), there is considerable awareness that the environment of the laboratory itself can alter the quality of the embryos produced and the industry as a whole has moved towards the implementation of auditable quality management systems. Furthermore, in some countries, such as Australia, an established quality management system is mandatory for clinical IVF practice, but such systems are less frequently found in other embryology laboratories. Although the same challenges of supporting consistent and repeatable embryo development are paramount to success in all embryology laboratories, it could be argued that they are more important in a research setting where often the measured outcomes are at an intracellular or molecular level. In the present review, we have outlined the role and importance of quality control and quality assurance systems in any embryo laboratory and have highlighted examples of how simple monitoring can provide consistency and avoid the induction of artefacts, irrespective of the laboratory’s purpose, function or species involved.
30
Johnson, Harry. "Collaborating to bring new technology on developments". APPEA Journal 62, n. 2 (13 maggio 2022): S127—S131. http://dx.doi.org/10.1071/aj21175.
Testo completoAbstract (sommario):
Project delivery certainty is a key a success factor for positive business outcomes. Taking on world first applications across multiple delivery streams comes with risk that requires significant risk reduction to meeting business requirements. The Julimar Development completed this successfully across both drilling and completions, and subsea. Reliable multizone completions with robust sand control have traditionally been a challenge in high-rate gas wells. Cased hole stacked gravel packs can leave high mechanical skin, require multiple trips and are complex operations. While Open Hole Gravel Packs (OHGPs) have provided reliable sand control in such wells, multizone applications have been limited due to the tradeoff between effective gravel placement and zonal isolation. Recent developments in technology have enabled reliable gravel placement and complete zonal isolation. The collaboration between Woodside and Subsea 7 has delivered an ‘industry first’ on the Julimar Project, with the completion of an 18″ Corrosion-Resistant Alloy (CRA) gas transmission flowline installed via reel-lay – the largest diameter insulated CRA pipeline ever reeled. For background, most projects have traditionally used the ‘S-Lay’ method for installing pipe in Australia – the reel-lay method is less common. A key benefit of the reel-lay method is it removes thousands of welds from the offshore installation vessel critical path, transferring them onshore into a safer, quality-controlled environment earlier in the schedule. Pipe joints are welded into ‘stalks’ which are then spooled onto purpose-built reel-lay vessels. Woodside and Subsea 7 were able to jointly demonstrate the safety, quality, technical and cost advantages of this innovative but field-proven reeled pipe-lay technology. The 18″ CRA flowline is a tangible example of the performance that can be delivered through early collaborative engagement and strategic investment in technology and is a step change in Australia and the industry. This joint presentation discusses contracting, design, execution and evaluation of technologies on the Julimar Development. It includes the method followed for reel-lay technology selection, engineering development, post project evaluation and the health and safety benefits. The presentation provides both the Operator and Contractor perspectives on the challenges of implementing new technology in developments in Australia.
31
Smith, G. C., J. D. Tatum e K. E. Belk. "International perspective: characterisation of United States Department of Agriculture and Meat Standards Australia systems for assessing beef quality". Australian Journal of Experimental Agriculture 48, n. 11 (2008): 1465. http://dx.doi.org/10.1071/ea08198.
Testo completoAbstract (sommario):
The intent, in this manuscript, is to characterise the United States Department of Agriculture (USDA) and Meat Standards Australia (MSA) systems for assessing beef quality and to describe the research evidence that supports the principles involved in grade application. USDA beef quality grading standards rely on carcass-trait-only assessments of approximate age of the animal at harvest and amount of intramuscular fat (as marbling) inside the muscles. USDA beef quality grading started 82 years ago. Then, as now, because no traceability system was in place, each animal’s history (exact age, feeding regimen, management practices, etc.) was incomplete; those who assigned quality grades used indicators of age (physiological maturity) and plane of nutrition (amount of marbling), and they do so still. Since 1926, research studies have identified a multitude of palatability-determining live-animal factors (e.g. genetics, use of hormonal growth promotants, high-energy diet finishing) and carcass-treatment factors (e.g. electrical stimulation, tenderstretch carcass suspension, postmortem aging) that cannot be incorporated into a carcass-trait-only quality assessment system. The USA beef industry has depended on development of more than 100 beef brands – some using palatability assurance critical control point plans, total quality management (TQM) philosophies, USDA certification and process verification programs, or combinations of live-animal factors, carcass-treatment factors and carcass-trait constraints – to further differentiate fresh beef products. The MSA grading system is a TQM grading approach that incorporates animal-specific traits (e.g. genetics, sex, age), control of certain pre-harvest and post-harvest processes in the beef chain, cut-specific quality differences and consumer preferences, into a beef pricing system. A unique aspect of the MSA grading system is that the grades are assigned to cuts or muscles, not carcasses; cuts or muscles from the same carcass are assigned individual (and in many cases, different) grades that reflect differences in expected eating quality performance among the various cuts of beef further adjusted to reflect the influence of cut or muscle aging and alternative cooking methods. The MSA grading system is still being modified and refined (using results of an extensive, ongoing consumer testing program), but it represents the best existing example of a TQM grading approach for improving beef quality and palatability. Research studies have shown that the accuracy of palatability-level prediction by use of the two systems – USDA quality grades for US customers and consumers and MSA grades for Australian customers and consumers – is sufficient to justify their continued use for beef quality assessment.
32
Miller, R., B. Whitehill e D. Deere. "A national approach to risk assessment for drinking water catchments in Australia". Water Supply 5, n. 2 (1 settembre 2005): 123–34. http://dx.doi.org/10.2166/ws.2005.0029.
Testo completoAbstract (sommario):
This paper comments on the strengths and weaknesses of different methodologies for risk assessment, appropriate for utilisation by Australian Water Utilities in risk assessment for drinking water source protection areas. It is intended that a suggested methodology be recommended as a national approach to catchment risk assessment. Catchment risk management is a process for setting priorities for protecting drinking water quality in source water areas. It is structured through a series of steps for identifying water quality hazards, assessing the threat posed, and prioritizing actions to address the threat. Water management organisations around Australia are at various stages of developing programs for catchment risk management. While much conceptual work has been done on the individual components of catchment risk management, work on these components has not previously been combined to form a management tool for source water protection. A key driver for this project has been the requirements of the National Health and Medical Research Council Framework for the Management of Drinking Water Quality (DWQMF) included in the draft 2002 Australian Drinking Water Guidelines (ADWG). The Framework outlines a quality management system of steps for the Australian water industry to follow with checks and balances to ensure water quality is protected from catchment to tap. Key steps in the Framework that relate to this project are as follows: Element 2 Assessment of the Drinking Water Supply System• Water Supply System analysis• Review of Water Quality Data• Hazard Identification and Risk Assessment Element 3 Preventive Measures for Drinking Water Quality Management• Preventive Measures and Multiple Barriers• Critical Control Points This paper provides an evaluation of the following risk assessment techniques: Hazard Analysis and Critical Control Points (HACCP); World Health Organisation Water Safety Plans; Australian Standard AS 4360; and The Australian Drinking Water Guidelines – Drinking Water Quality Management Framework. These methods were selected for assessment in this report as they provided coverage of the different approaches being used across Australia by water utilities of varying: scale of water management organisation; types of water supply system management; and land use and activity-based risks in the catchment area of the source. Initially, different risk assessment methodologies were identified and reviewed. Then examples of applications of those methods were assessed, based on several key water utilities across Australia and overseas. Strengths and weaknesses of each approach were identified. In general there seems some general grouping of types of approaches into those that: cover the full catchment-to-tap drinking water system; cover just the catchment area of the source and do not recognise downstream barriers or processes; use water quality data or land use risks as a key driving component; and are based primarily on the hazard whilst others are based on a hazardous event. It is considered that an initial process of screening water quality data is very valuable in determining key water quality issues and guiding the risk assessment, and to the overall understanding of the catchment and water source area, allowing consistency with the intentions behind the ADWG DWQM Framework. As such, it is suggested that the recommended national risk assessment approach has two key introductory steps: initial screening of key issues via water quality data, and land use or activity scenario and event-based HACCP-style risk assessment. In addition, the importance of recognising the roles that uncertainty and bias plays in risk assessments was highlighted. As such it was deemed necessary to develop and integrate uncertainty guidelines for information used in the risk assessment process. A hybrid risk assessment methodology was developed, based on the HACCP approach, but with some key additions and modifications to make it applicable to varying catchment risks, water supply operation needs and environmental management processes.
33
Di Fatta, Davide, Navneet Gera, Lokinder Kumar Tyagi e Thomas Grisold. "Export knowledge". Kybernetes 48, n. 8 (2 settembre 2019): 1806–26. http://dx.doi.org/10.1108/k-05-2018-0245.
Testo completoAbstract (sommario):
Purpose This paper aims to study the export knowledge to be the determinant of export strategy, export commitment and export performance in carpet Industry. Design/methodology/approach Using a qualitative–quantitative approach, the unit of analysis is the individual export venturing firm in India. More in detail, a qualitative analysis was conducted through a focus group interview to explore the challenges of carpet exports. A quantitative analysis was performed using confirmatory factor analysis (CFA) and, because of covariate nature of the proposed research model, structural equation modeling to evaluate the research hypotheses. Findings The results emphasized that Indian carpet exports face major challenges, namely, issues of raw material that is wool, shortage of labor for weaving carpets and a lack of organization which has a negative impact on productivity and quality. Furthermore, this study shows that export knowledge directly influences the export strategy, export commitment and export performance. Originality/value Building on the results, this paper suggests corrective measures, as well as required knowledge, to formulate a strategy and boost the export performance of the carpet sector.
34
Lawer, Janelle. "Gas sampling for mercury analysis". APPEA Journal 61, n. 2 (2021): 559. http://dx.doi.org/10.1071/aj21013.
Testo completoAbstract (sommario):
Historically, gas sampling for mercury has been neither accurate nor precise. In some instances, limited understanding of mercury in gas reservoirs has contributed to health, safety and environment (HSE) incidents and project cost escalation. Quality gas sampling for mercury is recognised as a critical element in project planning, best conducted in the exploration and appraisal phases of a field. Early knowledge of mercury concentrations can contribute to the success of development planning, HSE processes and production facility design. Gas Field X on the North West Shelf of Western Australia is in a region of variable mercury-in-gas concentrations. The recent Field X development drilling program commenced with a sampling plan optimised and focussed on mercury analysis using industry best practice operational, logistical and analysis techniques with the intent of building a statistically representative dataset of mercury concentrations. Procedures developed included investigating major sources of scavenging and contamination, innovative pre-job equipment preparation, use of multiple data sources (downhole and surface sampling, offshore and onshore analysis) and blind cross-checking between different laboratories and equipment types. All data has been through rigorous post-analysis quality control. The results of this unprecedented new dataset represent a case study of industry best-practice gas sampling delivering high confidence and repeatable data.
35
Campus, Paolo, Nigel D. Swarts, Craig Mundy, John P. Keane e Caleb Gardner. "Assessing Processing Waste from the Sea Urchin (Centrostephanus rodgersii) Fishery as an Organic Fertilizer". Agronomy 12, n. 12 (23 novembre 2022): 2919. http://dx.doi.org/10.3390/agronomy12122919.
Testo completoAbstract (sommario):
The longspined sea urchin, Centrostephanus rodgersii, is a climate-driven pest species in south-eastern Australia. The harvest of this species is highly encouraged and in Tasmania, the existing fishery is expanding resulting in a large amount of waste that needs disposal. Research into use of waste products as inputs for organic or biodynamic farming systems can help reduce costs of disposal and keep the industry profitable; by sustaining or incrementing sea urchin harvest the industry can assist in their control. In the current study, urchin waste was dried and finely ground to a powder and applied to tomato plants in a greenhouse to examine the effect on growth and productivity. Urchin waste powder (UWP) had a mineral composition of Ca (40 g 100 g−1), Mg (1.7 g 100 g−1), P (0.03 g 100 g−1), Fe (19.34 mg kg−1) and B (38 mg kg−1), a pH 8.06 in water and an Electrical Conductivity (EC) value of 7.64 dSm−1. Seven different treatment rates of UWP (0.3%; 0.5%; 0.8%; 1%; 2%; 3%; 5%), were added to 10 replicate pots containing 4 kg nutrient-poor potting mix planted with tomato (Variety K1) seedlings. Plant growth, yield, quality attributes and mineral content of tomato were measured under UWP treatments with comparison against a Hoagland solution control. UWP influenced tomato growth and productivity proportional to the quantity applied, however, the Hoagland solution control had a significantly greater yield. Potting mix pH increased from 6.8 to 7 and higher available P was detected in potting mix receiving higher rates of UWP. No phytotoxic effects were detected. The highest UWP treatment matched the Hoagland control in fruit quality and nutritional composition. Processing waste from the sea urchin fishery has potential as organic fertiliser or amendment providing plant-available Ca and some microelements such as Boron.
36
Scott, J. M., K. Behrendt, A. Colvin, F. Scott, L. M. Shakhane, C. Guppy, J. Hoad et al. "Integrated overview of results from a farmlet experiment which compared the effects of pasture inputs and grazing management on profitability and sustainability". Animal Production Science 53, n. 8 (2013): 841. http://dx.doi.org/10.1071/an12284.
Testo completoAbstract (sommario):
The Cicerone Project conducted a grazed farmlet experiment on the Northern Tablelands of New South Wales, Australia, from July 2000 to December 2006, to address questions raised by local graziers concerning how they might improve the profitability and sustainability of their grazing enterprises. This unreplicated experiment examined three management systems at a whole-farmlet scale. The control farmlet (farmlet B) represented typical management for the region, with flexible rotational grazing and moderate inputs. A second farmlet (farmlet A) also used flexible rotational grazing but had a higher level of pasture renovation and soil fertility, while the third farmlet (farmlet C) had the same moderate inputs as farmlet B but employed intensive rotational grazing. The present paper provides an integrated overview of the results collated from component papers and discusses the inferences that can be drawn from what was a complex, agroecosystem experiment. The measurements recorded both early and late in the experiment were tabulated for each of the farmlets and compared with each other as relative proportions, allowing visual presentation on a common, indexed scale. Because of equivalent starting conditions, there was little difference between farmlets early in the experimental period (2000–01) across a wide array of measured parameters, including herbage mass, potential pasture growth rate, liveweight, wool production per head, stocking rate, gross margin and equity. Although the experiment experienced drier-than-average conditions, marked differences emerged among farmlets over time, due to the effects of treatments. During the latter half of the experimental period (2003–06), farmlet A showed numerous positive and a few negative consequences of the higher rate of pasture renovation and increased soil fertility compared with the other two farmlets. While intensive rotational grazing resulted in superior control of gastrointestinal nematodes and slightly finer wool, this system had few effects on pastures and no positive effects on sheep liveweights, wool production or stocking rate. Whereas farmlet A showed higher gross margins, it had a negative and lower short-term cash position than did farmlets B and C, due largely to the artificially high rate of pasture renovation undertaken on this farmlet during the experiment. Although farmlet B had the highest cash position at the end of the experiment, this came at a cost of the declining quality of its pastures. Modelling of the farmlet systems allowed the results to be considered over the longer timeframes needed to assess sustainability. Thus, returns on investment were compared over realistic amortisation periods and produced outcomes based on long-term climatic expectations which were compared with those that arose under the drier-than-average conditions experienced during the experimental period. The main factors responsible for lifting the productivity of farmlet A were the sowing of temperate species and increased soil fertility, which enhanced the amount of legume and increased pasture quality and potential pasture growth. The factor that affected farmlet C most was the low proportion of the farmlet grazed at any one time, with high stock density imposed during grazing, which decreased feed intake quality. The paper concludes that more profitable and sustainable outcomes are most likely to arise from grazing enterprises that are proactively managed towards optimal outcomes by maintaining sufficient desirable perennial grasses with adequate legume content, enhancing soil fertility and employing flexible rotational grazing.
37
Cardoso, Allana, Priscila Martins e Rui Resende. "Innovation in Physical Education, Physical Activity and Sport: a bibliometric analysis". Journal of Sport Pedagogy & Research 7, n. 6 (2021): 28–37. http://dx.doi.org/10.47863/waea3829.
Testo completoAbstract (sommario):
This article aimed to map the historical development of scientific production on innovation in Physical Education, physical activity, and sport. A structured literature review using formal bibliometric analysis methods was carried out in November 2019. The search and selection process of articles was carried out in the Web of Science and Scopus databases, using the equation ("physical education" OR "physical activity " OR sports) AND (innovat*)). The final selection included 481 articles, the first publication being found in 1968, with increasing investigation from 2010, and the journal Agro Food Industry Hi Tech was the magazine with the highest number of publications. The countries that most published the theme were China, the United States and Australia. In addition, the most frequent keywords identified were “Sport”, “Management”, “Perfomance”, “Determinants” and “Innovation”, and the authors who published the most had institutional links with the Universities of Australia, Luxembourg, and Belgium. In conclusion, although few studies have been found on the subject investigated in relation to the educational axis, there is a growing advance in relation to production on technologies that aim to improve the quality of life and control parameters that help sports performance.
38
Johnston, Nicole, e Eric Too. "Multi-owned properties in Australia: a governance typology of issues and outcomes". International Journal of Housing Markets and Analysis 8, n. 4 (5 ottobre 2015): 451–70. http://dx.doi.org/10.1108/ijhma-02-2015-0005.
Testo completoAbstract (sommario):
Purpose – The purpose of this study is to develop a governance typology which identifies governance issues and outcomes. Multi-owned properties (MOPs) are a unique property type due to the incorporation of a private governance association. Although there are jurisdictional differences, these associations are generally responsible for the management, maintenance and control of the commonly owned property; determining the contributions payable by each lot owner to the operation of the association; enforcing the rules of the association; and ensuring that records meet legislative requirements. Legislation for MOP schemes was enacted in different jurisdictions to guide the governance and management of these matters. However, challenges relating to the governance of MOPs have continued to be a problem as identified in the literature and practice. Design/methodology/approach – The study first reviewed the legislation in three Australian states to identify specific governance categories and the legislative requirements related to those categories. To gain group opinion about the specific governance issues and outcomes, the Delphi method was utilised whereby industry experts participated in a two-round survey questionnaire. Findings – A typology was developed as a result of consensus found between participants. The findings identified key governance issues and outcomes for MOPs. Practical implications – The governance typology forms the basis for the development of a more comprehensive audit tool for the assessment of governance quality in individual schemes. Originality/value – This paper is the first of its kind to collate issues impacting upon effective owners’ corporation governance and the potential outcomes associated with poor governance practices in MOPs.
39
Zhang, Yaxin, e Tao Hu. "Ensemble Interval Prediction for Solar Photovoltaic Power Generation". Energies 15, n. 19 (29 settembre 2022): 7193. http://dx.doi.org/10.3390/en15197193.
Testo completoAbstract (sommario):
In recent years, solar photovoltaic power generation has emerged as an essential means of energy supply. The prediction of its active power is not only conducive to cost saving but can also promote the development of solar power generation industry. However, it is challenging to obtain an accurate and high-quality interval prediction of active power. Based on the data set of desert knowledge in the Australia solar center in Australia, firstly, we have compared twelve interval prediction methods based on machine learning. Secondly, six ensemble methods, namely Ensemble-Mean, Ensemble-Median (Ensemble-Med), Ensemble-Envelop (Ensemble-En), Ensemble-Probability averaging of endpoints and simple averaging of midpoints (Ensemble-PM), Ensemble-Exterior trimming (Ensemble-TE), and Ensemble-Interior trimming (Ensemble-TI) are used to combine forecast intervals. The result indicates that Ensemble-TE is the best method. Additionally, compared to other methods, Ensemble-TE ensures the prediction interval coverage probability for confidence levels of 95%, 90%, 85%, and 80% as 0.960, 0.920, 0.873, and 0.824, respectively, using 15-min level data. Meanwhile, the narrower prediction interval normalized averaged width is calculated for the same confidence levels as 0.066, 0.045, 0.035, and 0.028, respectively. In addition, higher Winkler score and smaller coverage width-based criterion are obtained, representing high-quality intervals. We have calculated smaller mean prediction interval center deviation, which is approximately 0.044. Thus, the above demonstrates that this study obtains the prediction interval with better performance compared to other existing methods.
40
Williams, P., J. M. Stanley e M. K. Cattach. "The application of ground and airborne magnetic methods to exploration and geological mapping in the Yilgarn goldfields of Western Australia". Exploration Geophysics 20, n. 2 (1989): 103. http://dx.doi.org/10.1071/eg989103.
Testo completoAbstract (sommario):
The performance of both ground level and airborne magnetometer systems have been greatly improved as a result of advances in digital electronics, accurate automatic positioning devices and the introduction of high resolution, fast sampling caesium magnetometer sensors. Multiple sensor, low heading error airborne surveys are now being performed at relatively low ground clearance levels. The development of the TM-3, automatic positioning ground magnetometer system has made it practical to adequately sample all spatial frequencies present in the ground level magnetic field thereby acquiring the full spectrum of magnetic information.Approximately a one square kilometre area near Coolgardie in WA has been chosen as a case-study area for investigating the relative effectiveness of conventional and new, ground level and airborne, magnetic surveying techniques. The site is geologically typical of the auriferous environments within the Yilgarn block.This is the first time that such a comparative study has been made using all of the most common magnetic survey sampling standards available to the exploration industry. Data collected from conventional, government sponsored regional airborne survey and ground level proton precession magnetometer surveys has been image processed using state-of-the-art techniques. Data from a high quality, low level, multiple sensor, airborne, caesium magnetometer survey and a "broad spectrum" (sampled at a density of 200,000 measurements per square km) ground level caesium survey have similarly been processed. Geological control has been obtained from an extensive drilling and costeaning program.This data set has provided a definitive comparison in cost spent, speed of survey and information obtained from each survey.
41
Ryan, Michael J. "Medicine shortages: there are solutions! Actions to take to reduce medicine shortages". Australian Health Review 45, n. 4 (2021): 504. http://dx.doi.org/10.1071/ah20306.
Testo completoAbstract (sommario):
The aim of this paper is to propose solutions to reduce the number and frequency of medicine shortages in Australia. Some of the many factors that contribute to medicine shortages, such as manufacturers’ production processes and business decisions, are outside the control of Australian stakeholders. But there are many factors that are within the control of stakeholders, including poor communication between stakeholders, incomplete and inaccurate information, unhelpful practices and attitudes of hospital tender authorities, and lack of certainty and incentives for manufacturers in relation to pharmaceutical tenders. The following strategies are designed to address these issues and achieve a significant reduction in the number and frequency of medicine shortages in Australian hospitals. They include improving communication and understanding between stakeholders, providing higher quality information on likely usage, changing practices of hospital tender authorities to better meet stakeholder requirements, and increasing incentives for manufacturers to participate in hospital tenders. The six key actions to implement the medicine shortage-reducing strategies are: (1) initiate a biannual forum for hospitals and industry; (2) establish a medicines substitutes information service operating nationally; (3) share information on likely changes to hospital usage; (4) reform stock allocation strategies; (5) introduce incentives for manufacturers; and (6) change hospital tender authority practices and policies. The first step to reduce medicine shortages is for stakeholders to think differently about the problem, and to act more collaboratively using the proposed strategies and actions, as a framework for change.
42
El-Salem, Rugaia M. A., Abdulhafeez Khan e Eman Z. Younis. "Cystic Echinococcosis in Slaughtered Animals in Libya: A Review". Journal of Pure & Applied Sciences 20, n. 1 (18 maggio 2021): 167–71. http://dx.doi.org/10.51984/jopas.v20i1.1239.
Testo completoAbstract (sommario):
Unilocular Cystic Echinococcosis (CE), in livestock is caused by the larval cystic stage of Echinococcus granulosus. Hydatid cysts in domestic animals lead to protein and economic losses, because of the condemnation of slaughtered animals infected viscera as well as reducing the quality and quantity of the livestock other productions such as milk, wool and meat. In Libya, hydatid disease infects a wide range of domestic animals (sheep, goats, cattle and camels) act as intermediate hosts E. granulosus. Prevalence of cystic hydatidosis based on available abattoirs data in livestock is hyper endemic in Libya and infection rates in all domestic slaughtered animals reached almost 50%. Many abattoir investigations in Libya have revealed that hydatid cyst is a disease, which infect a wide range of animal species with variable rates of infection, for example, sheep (1.6 to 40%), goats (5.6 to 70%), cattle (2.7 to 56%) and camels (2.7 to 48%) in different cities of Libya. Population of stray dogs and its worm burden infection of E. granulosus, socio-economic development, socio- economic agricultural practices, common traditional animal husbandry practices and the practices of slaughtering of domesticated animals continued the transmission of cystic hydatidosis in the various cities of Libya. Importance of echinococcosis given on human health and domestic animals industry, it is necessary to implement monitoring and control measures in this regard in Libya. This requires public health education and awareness about the dangers of the disease and its transmission and preventive routes, education on the appropriate ways of washing and disinfecting of vegetables and fruits, education on the correct ways of animal slaughtering, prevention on feeding dogs by viscera of home-slaughtered animals, prevention on direct contact by dogs faeces, enforce legislation on meat inspection and improve veterinary services in both government as well as private abattoirs in Libya.
43
Loosemore, Martin. "Improving construction productivity: a subcontractor's perspective". Engineering, Construction and Architectural Management 21, n. 3 (13 maggio 2014): 245–60. http://dx.doi.org/10.1108/ecam-05-2013-0043.
Testo completoAbstract (sommario):
Purpose – Surprisingly, given the prominence and front-line role of subcontractors in the construction industry, their perspective is almost completely absent from construction productivity literature. Existing research in this area presents a highly one-sided principal contractor perspective and there are very few insights into what subcontractors think. The purpose of this paper is to address the imbalance by investigating the determinants of construction productivity from a subcontractor's perspective. Design/methodology/approach – Focus groups with 71 of Australia's leading tier-one subcontractors were conducted with the aim of exploring their insights into the productivity challenge. Findings – The findings indicate that the main determinants of productivity for subcontractors are: the quality of relationships with principal contractors; opportunity for early involvement in design; transparent tender practices; growing administration and document control; design management; project management and supervisory skills, particularly in planning, scheduling and coordination; risk management and; industrial relations (IR). Research limitations/implications – This research was conducted in Australia and similar research needs to be conducted in other countries to cross-reference and validate the results more widely. Practical implications – In practical terms, a “culture” of productivity improvement will need to be “nurtured” across the business and supply chain if productivity is to be improved. In particular contractors should avoid bid shopping, respect subcontractor IP and talk to subcontractors earlier in a project. Social implications – By respecting the opinions of subcontractors who employ the vast majority of workers in the construction industry, productivity and employment can be increased. Originality/value – The focus group results add significantly to a more balanced understanding of what has hitherto been a one-sided principal contractor focused debate.
44
Bhattarai, Surya P., Lance Pendergast, Li Shuyan e David J. Midmore. "Effects of spatial and temporal regulation of drip emitters and tube configurations on water productivity of juvenile macadamia trees in the tropics". Experimental Agriculture 57, n. 5-6 (dicembre 2021): 338–51. http://dx.doi.org/10.1017/s0014479722000011.
Testo completoAbstract (sommario):
SummaryMacadamia in Australia is traditionally grown in semi-arid climates with hot and humid summers and cool winters supporting rainfed cultivation. Recent industry expansion into more northern, drier production areas of Queensland, Australia, requires supplementary irrigation for successful macadamia production. However, ever-increasing demand for irrigation water in these areas is both competitive and regulated. Limited information is available to optimize water use efficiency for field-grown macadamia trees. We trialled a technique that employs specially designed drip tubes with push-in emitter plugs to close emitters so that transplanting can start with emitters closed distant from tree bases and open next to the trunks of each tree. Additional emitters are then gradually opened (i.e., plugs are removed) as tree canopy size increases over subsequent years. This technique was tested on single and double in-line irrigation tube configurations per row of macadamia. Temporal regulation of emitter closure significantly reduced irrigation input by 75, 50 and 25% in the first, second and third year of treatment. Hence, irrigation over the three-year establishment period was reduced to one-half that of the non-regulated crop. These early reductions of irrigation in juvenile trees had no significant negative effects on plant growth (height, canopy spread, leaf chlorophyll and leaf photosynthetic rates), nor on nut counts. Control of emitter discharge between the plants along the row in the earlier stage (i.e., before complete within-row canopy cover) also reduced weed growth between the trees in the row. Notable growth advantages of the single in-line over the double in-line tube configuration were evident, with a non-significant but sizeable benefit on nut counts too. Effects of the temporal regulation of emitters and of in-line tube configurations must be validated on cultivars with differing water requirements and for the longer-term reproductive performance and nut quality.
45
Mollah, Mahabubur R., Dale J. Unwin, Glenn J. Fitzgerald e Everard J. Edwards. "A CO2 Injection System Inside an Open-Top Chamber Enclosing Mature Field-Grown Grapevines: Design and Performance". Transactions of the ASABE 61, n. 4 (2018): 1231–39. http://dx.doi.org/10.13031/trans.12576.
Testo completoAbstract (sommario):
Abstract. Global mean temperature is likely to rise by more than 2°C by the end of the century and carbon dioxide concentration ([CO2]) is expected to increase from 408 µmol mol-1 in 2018 to 650 µmol mol-1 by 2060-2070. Previous studies and industry experience suggest that there has already been an effect of warmer temperatures on grapevine phenology; harvest dates have advanced and vintages have become shorter over the past 30 years in Australia. In addition, increasing [CO2] in the atmosphere will likely alter grapevine growth, development, and grape quality. Understanding the interactive effects of [CO2] and temperature on grapevines is essential to determine the potential impact of future climate on grape phenology, grape composition, and final wine quality. Open-top chambers (OTC), capable of maintaining air temperature 2°C above ambient throughout the diurnal cycle using an active heating system and fan-assisted air circulation, were established in an experimental vineyard managed to current commercial practice. A system was then developed to elevate atmospheric [CO2] to 650 µmol mol-1 around the grapevines within the OTC. The main engineering goal of the system was to maintain an even temporal and spatial distribution of CO2. Monitoring showed that the mean daytime [CO2] at the center of each OTC varied between 620 and 665 µmol mol-1, maintaining [CO2] at or above 95.4% of the target [CO2] and not exceeding the target by more than 2.3%, meeting the performance criteria of within ±10% of the target concentration. Both the temporal and spatial distributions of [CO2] were more even in heated OTCs than non-heated OTCs. In all heated OTCs, the [CO2] was at or above 90% of the target and within ±10% of the target at all locations assessed (spatial distribution). The mean [CO2] was between 80% and 86% of the target at 40% of locations in OTCs without heating; however, the overall mean [CO2] in the OTCs was 97.5% of the target. The system performed satisfactorily over a wide range of temperatures (20°C to 50°C), with overall standard deviation varying between 85 and 112 µmol mol-1. This indicates that the CO2 injection system showed satisfactory performance in controlling [CO2] at the center of each OTC and providing confidence in the results that will be generated from experiments using the system. On average, the heating system maintained a higher temperature (about 2.0°C in both day and night) than the ambient control plots. Keywords: Australia, CO2 injection in grapevines, Elevated CO2, Grapevines, Open-top chamber, Temperature.
46
Norton, Mark R., Denys L. Garden, Beverley A. Orchard, Philip Armstrong e Trent Brassil. "Effects of lime, phosphorus and stocking rate on an extensively managed permanent pasture: botanical composition and groundcover". Crop and Pasture Science 71, n. 7 (2020): 700. http://dx.doi.org/10.1071/cp20135.
Testo completoAbstract (sommario):
Low phosphorus (P) constrains productivity of many of the permanent pastures of south-eastern Australia where wool and meat production are important. Whereas the need for fertilisation with P is indisputable for many soils, the benefits of liming to ameliorate soil acidification are not always clear in terms of forage production or quality. This experiment, by measuring botanical composition and groundcover over 10 years, aimed to address the issue of forage composition and groundcover. Merino wethers were continuously grazed on a permanent pasture under two stocking rates (low and high) following treatments with three rates of surface-applied lime and two rates of P. The lime rates were: nil, and sufficient to raise the pHCaCl2 of the 0–10 cm soil layer to 5.0 and to 5.5. Phosphorus was added as two rates of single superphosphate: 125 kg ha–1 every 2–3 years, and 250 kg ha–1 every year. Two hypotheses were proposed: (i) as lime application rate increased, it would lead to the pasture swards having a higher percentage of species favourable for grazing animal production, and a higher level of sward groundcover would be maintained; and (ii) legume presence would be favoured by a higher level of applied P over the long term. The Millennium Drought (1997–2008), which coincided with this experiment (1998–2008), tended to mask or reduce lime effects; nevertheless, the higher legume content in the sward, as well as the superior groundcover found in the high lime–high P treatments at various times throughout the experiment and at its completion compared with the nil-lime control, indicated positive forage effects of lime application. Moreover, by the termination of the experiment in 2008, groundcover generally tended to be lower under nil lime than in treatments that had received lime. The higher proportion of legume in the sward was closely linked to greater applied P, although this did not occur at the low stocking rate in the absence of lime. By contrast, similar high P–low stocking rate treatments but with applied lime had the highest clover contents. It is proposed that the poor persistence of the treatment without lime may be due to a combination of poor legume seedset, because of excessive competition from accompanying grasses, and aluminium toxicity adversely affecting legume growth.
47
Xiang, Dong, e Andrew Worthington. "Finance-seeking behaviour and outcomes for small- and medium-sized enterprises". International Journal of Managerial Finance 11, n. 4 (7 settembre 2015): 513–30. http://dx.doi.org/10.1108/ijmf-01-2013-0005.
Testo completoAbstract (sommario):
Purpose – Model finance-seeking behaviour and outcomes by Australian small- and medium-sized enterprises (SMEs) using firm-level panel data. The paper aims to discuss this issue. Design/methodology/approach – Using firm-level three-year panel data for more than 2,000 SMEs from the Business Longitudinal Database compiled by the Australian Bureau of Statistics, the authors estimate separate models for the seeking of finance (debt and/or equity) and the outcomes of finance seeking (successful or unsuccessful). Key explanatory variables include declared business focus (on financial, cost, operational, quality, innovation, and human resource measures), presence of business plans and other documentation related to successful finance seeking, innovation, indicators for family and foreign-owned businesses, and profitability. Control variables include sales, the number of employees, length of operations, export and import activity, government financial assistance, and industry classification. Findings – Business objectives together with a large number of firm-level characteristics, including firm age, size, industry and sales, profits, growth and exports, significantly affect both finance-seeking behaviour and outcomes. The authors find evidence that the pecking-order and agency cost theories of capital structure at least partly explain the financial behaviour of Australian SMEs. Research limitations/implications – Several of the responses in the underlying survey data are qualitative so the authors are unable to assess how the strength of these relationships varies by the levels of sales and profitability. Practical implications – The findings show that business objectives significantly affect SME finance-seeking decisions and outcomes. SMEs that focus on profitability or growth have a strong willingness to seek additional finance; in comparison, SMEs that focus on the quality of their products or services are less likely to apply for additional finance. As only half of the SMEs in the sample considered profitability or growth to be a major business focus, core business objectives greatly affect SME financing decisions. Further, pecking-order theory not trade-off theory better explains the financial behaviour of SMEs, yielding evidence that SMEs continue to face financial constraints when pursuing growth. Some evidence also of agency cost theory in the positive effects of family ownership on debt seeking. Originality/value – One of very few studies to examine finance seeking by SMEs, especially in Australia. Further, only study known to include declared business strategy, presence of business plans and other finance-related documentation and innovation in addition to the usual focus on growth and profitability to explain financing behaviour. Very large panel of longitudinal data used to explain financial decision making over time.
48
Antille, Diogenes L., Bernadette K. McCabe, Wilmer Van Der Spek e Craig P. Baillie. "An Investigation into the Fertilizer Potential of Slaughterhouse Cattle Paunch". Transactions of the ASABE 61, n. 1 (2018): 87–101. http://dx.doi.org/10.13031/trans.12342.
Testo completoAbstract (sommario):
Abstract. In Australia, recycling of paunch waste to farmland has been suggested as a cost-effective and practicable environmental option, but little is known about its agronomic value. Experimental work was undertaken to assess potential risks due to weed seed contamination, determine the agronomic response of ryegrass ( L.) to soil incorporation of paunch, and investigate short-term greenhouse gas (GHG) emissions. Five types of paunch with compost ages between 2 and 16 weeks were compared with urea (46% N) and applied at field equivalent rates of 0 (control), 150, and 300 kg ha-1 N. The risk of weed contamination from paunch applied to soil appeared to be negligible; however, techniques that enable seed viability to be determined may be required to fully discard such risk. Average dry matter yield with paunch was ~30% higher than untreated grass, but ~35% lower than with urea. Dry matter yield in paunch-treated grass was between 2500 and 3250 kg ha-1 over five cuts conducted at 25-day intervals. Paunch N responses were between 1.12 and 3.25 kg DM kg-1 N depending on compost age, but lower than with urea N (~6.5 kg DM kg-1 N). Nitrogen use efficiency of paunch ranged between 3% and 20%, compared to about 35% with urea. Nitrogen fertilizer replacement value (NFRV) of paunch was highest in the 6-week-old compost (~60%) and ranged between 20% and 55% across all other organic materials. Short-term N2O emissions were similar (p > 0.05) with both mineral and organic amendments; however, CH4 emissions were higher (p < 0.05) from paunch compared with urea-treated soil. Overall, there appears to be potential for paunch-derived products to be used as a source of C and nutrients in crop production. Industry quality specifications for compost are available, but they need to be expanded to incorporate guidelines relevant to paunch. There is a requirement for the value proposition to industry to be determined, including reduced cost of paunch disposal via gate fees. Keywords: Byproducts, Composting, Fertilizer replacement value, Nutrient recovery, Nutrient use efficiency, Recycling of abattoir-derived waste.
49
Бондаренко, Ольга, Світлана Мантуленко e Андрій Пікільняк. "Google Classroom as a Tool of Support of Blended Learning for Geography Students". Педагогіка вищої та середньої школи 51 (13 dicembre 2018): 235–46. http://dx.doi.org/10.31812/pedag.v51i0.3671.
Testo completoAbstract (sommario):
Bondarenko O.V., Mantulenko S.V. and Pikilnyak A.V. Google Classroom as a Tool of Support of Blended Learning for Geography Students.
The article reveals the experience of organizing blended learning for geography students using Google Classroom, and discloses its potential uses in the study of geography. For the last three years, the authors have tested such in-class and distance courses as “Cartography and Basics of Topography”, “Population Geography”, “Information Systems and Technologies in Tourism Industry”, “Regional Economic and Social World Geography (Europe and the CIS)”, “Regional Economic and Social World Geography (Africa, Latin America, Asia, Anglo-America, Australia and Oceania)”, “Socio-Economic Cartography”.
The advantages of using the specified interactive tool during the study of geographical disciplines are highlighted out in the article. As it has been established, the organization of the learning process using Google Classroom ensures the unity of in-class and out-of-class learning; it is designed to realize effective interaction of the subjects learning in real time; to monitor the quality of training and control the students’ learning achievements in class as well as out of it, etc.
The article outlines the disadvantages that should be taken into account when organizing blended learning using Google Classroom, including the occasional predominance of students’ external motivation in education and their low level of readiness for work in the classroom; insufficient level of material and technical support in some classrooms; need for out-of-class pedagogical support; lack of guidance on the content aspect of Google Classroom pages, etc.
Through the test series conducted during 2016–2017, an increase in the number of geography students with a sufficient level of academic achievements and a decrease of those with a low level of it was revealed.
50
Yassi, Nabeel. "Trends in onshore seismic data acquisition: a case study on cable-free nodal systems". APPEA Journal 56, n. 2 (2016): 601. http://dx.doi.org/10.1071/aj15107.
Testo completoAbstract (sommario):
The desire to conduct onshore seismic surveys without cables has been an elusive dream since the dawn of seismic exploration. Since the late 1970s, seismic surveys were conducted with cabled multi-channels acquisition systems. As the number of channels steadily grew, a fundamental restriction appeared with hundreds of kilometres of line cables dragged on the ground. Seismic surveys within rugged terrain—across rivers, steep cliffs, urban areas, and culturally and environmentally sensitive zones—were both challenging and expansive exercises. Modern technology has made different cable-free solutions practical. High-resolution analogue to digital converters are now affordable, as are GPS radios for timing and location. Microprocessors and memory are readily available for autonomous recording systems, along with a battery the size and weight of a field nodal now promising to power an acquisition unit for as long as required for normal seismic crew operations. Many successful 2D and 3D seismic data acquisition using cable-free autonomous nodal systems were attempted in the past few years; however, there remain a number of concerns with these systems. The first concern queries whether the units are working according to manufacturer specifications during the data acquisition window. The second is the limited or no real-time data quality control that inspires sceptics to use the term blind acquisition to nodal operations. The third is the traditional question of geophone array versus point receiver acquisition. Although a string of the geophone can be connected to autonomous nodes, the preference is to deploy a single or internal geophone with the nodes to maintain the proposed flexibility of cable-free recording systems. This case study elaborates on the benefits of the cable-free seismic surveys, with specific examples of 2D and 3D exploration programs conducted in Australia in the past few years. Optimisation of field crew size, field crew resources, cost implications, and footprint to the environment, wildlife and domestic livestock will be discussed. In addition, the study focuses on the data quality/data assurance and the processes implanted during data acquisition to maintain equivalent industry standards to cable recording. Emphases will also include data analysis and test results of the geophone array versus the cable-free point receiver recording.