Farming Systems in the Central West of NSW: An Economic Analysis

The objectives of this report have been to describe important farming systems in the Central West of NSW, to gain some insights into current financial performance and to examine in more detail the role of pastures in these farming systems at a time when the profitability of wool growing has been low relative to grain growing. While farms and farming systems vary considerably across the region, a majority can be broadly grouped into a mixed livestock and cropping category. Although there is also significant variability within this category, two representative farms and farming systems were developed for the region with the assistance from a small group of farmers and extension staff from NSW Agriculture. One represents the farms and farming systems east of Condobolin and the other represents the farms and farming systems to the west of Condobolin. Whole-farm budget models have been developed for each to provide a description of the farms in this region and an indication of their current profitability. They are useful to give an indication of how farm income might be altered by the introduction of some new technology, a new enterprise such a pulse crop, or an alternative management practice. This report presents some examples of their application but importantly it has provided a template for the development of additional whole-farm budgets for alternative farming systems in this and other regions. Using the whole-farm budget representing farms east of Condobolin, and a linear programming model, PRISM Condobolin, this report shows that the optimal length of pasture is fairly insensitive to changing market signals for both cropping and livestock commodities. It also shows that although length of pasture is insensitive, the optimal mix of enterprises does change, highlighting the importance of considering the interactions between enterprises in whole-farm analysis.Industrial Organization, Production Economics,

The polyphenolic and hydroxycinnamate contents of whole coffee fruits from China, India and Mexico

Air dried whole coffee fruits, beans and husks from China, India and Mexico were analysed for their chlorogenic acids (CGA), caffeine, and polyphenolic content. Analysis was by HPLC and Orbitrap exact mass spectrometry. Total phenol, total flavonol and antioxidant capacity were measured. The hydroxycinnamate profile consisted of caffeoylquinic acids, feruloyquinic acids, dicaffeoylquinic acids and caffeoyl-feruloylquinic acids. A range of flavan-3-ols as well as flavonol conjugates were detected. The CGA content was similar for both Mexico and India coffee fruits but was much lower in China samples. Highest levels of flavan-3-ols were found in the Indian samples whereas Mexico samples contained the highest flavonols. Amounts of CGAs in the beans were similar to those in the whole fruits, but flavan-3-ols and flavonols were not detected. The husks contained the same range of polyphenols as in the whole fruits. Highest levels of caffeine were found in the Robusta samples

Mm-wave power meter mount

E-band thermistor mount and a technique for adjusting a temperature compensating thermistor to provide an electrically balanced bridge are used for measuring RF power in the mm-wavelength. The mount is relatively insensitive to temperature effects that cause measurement errors in single ended circuits

Multicomputer communication system

A local area network is provided for a plurality of autonomous computers which operate at different rates and under different protocols coupled by network bus adapters to a global bus. A host computer (HC) divides a message file to be transmitted into blocks, each with a header that includes a data type identifier and a trailer. The associated network bus adapter (NBA) then divides the data into packets, each with a header to which a transport header and trailer is added with frame type code which specifies one of three modes of addressing in the transmission of data, namely a physical address mode for computer to computer transmission using two bytes for source and destination addresses, a logical address mode and a data type mode. In the logical address mode, one of the two addressing bytes contains a logical channel number (LCN) established between the transmitting and one or more receiving computers. In the data type mode, one of the addressing bytes contains a code identifying the type of data

Matched Thermistors for Microwave Power Meters-Patent

Matched thermistors for microwave power meters with compensation for temperature change

The Collaborative Development of New CFD Methods Adapted for Tilt Rotor Aircraft in the HiPerTilt Project

No abstract available

Voluntarism in occupational health and safety: a reply to Farlow

The serious allegations made by Farlow as to the integrity of this study cannot be allowed to go by without comment. The study and general criticisms which relate to the sample, choice of variables and the findings are briefly dealt with. The main comments in this reply are directed at the 3 more specific issues which appear to be the real concern of the Federation, namely, worker participation, trade union input and interpretation of the aims of the Code of Practice for health and representatives and health and safety committees (1987)

Delivery Matters—or Does It? A Snapshot of Online Versus In-Person Instruction

Online instruction and computer-based innovations in brick-and-mortar institutions are here to stay, but the study of distance delivery is lacking. Areas needing more attention include instructional effectiveness and student satisfaction. Educational quality, especially in online classes, should be monitored and evaluated to ensure learning, collaboration, and success, as well as to gain knowledge and improve practice. The purpose of this paper is to encourage scholar–practitioner dialogue on and comparison of issues pertaining to online and in-person instruction for adult learners. The research question guiding this exploratory qualitative study was, Are there any differences in the learning performance of two graduate cohorts—one online, the other in-person—taking the same course in a given semester? Teaching professors committed to innovative technology that facilitates student success likely find themselves weighing the pros and cons of teaching electronically as opposed to in-person. The anticipated contribution of this study is to inform faculty who may be hesitant to teach graduate courses or who are seeking ways to enhance their curriculum for online delivery. Researchers of instructional practice may find the structure of inquiry, results, and recommendations useful for their own purposes