scholarly journals Economics of a variable rate fertiliser strategy on a Whanganui hill country station

2017 ◽  
Vol 79 ◽  
pp. 125-129
Author(s):  
M.D. White ◽  
A.K. Metherell ◽  
A.H.C. Roberts ◽  
R.E. Meyer ◽  
T.A. Cushnahan
Keyword(s):  
Economic Benefit ◽  
Net Present Value ◽  
Hyperspectral Data ◽  
Variable Rate ◽  
Differential Gps ◽  
Hill Country ◽  
The Face ◽  
Gross Margins ◽  
Fertiliser Strategy

Abstract Automated flow control coupled to differential GPS guidance systems in aerial topdressing aircraft will allow variable rate (VR) fertiliser strategies to be applied on hill country farms. The effectiveness of these strategies will be enhanced with the use of remotely sensed hyperspectral data to categorise and quantify the farm landscape in greater detail. The economic benefit of a variable rate fertiliser strategy in comparison to a single rate (blanket) strategy was evaluated for a case study Whanganui hill country station. The analysis illustrates the robustness of a VR strategy in the face of volatile returns in that it produced a higher 10 year cumulative net present value (NPV) and remained at a positive advantage at three different stock gross margins, in comparison to a blanket approach. The effectiveness of hyperspectral imagery for defining effective pasture areas to assist development of more precise variable rate fertiliser applications, compared to the current visual classification from farm photography is discussed. Keywords: economic benefit, variable rate fertiliser, hyperspectral data

scholarly journals Variable and differential application of nutrients to a hill country farm

2017 ◽  
Vol 79 ◽  
pp. 119-123
Author(s):  
Jd Morton ◽  
A. Gillingham
Keyword(s):  
Financial Analysis ◽  
Economic Benefits ◽  
Early Spring ◽  
Late Winter ◽  
Variable Rate ◽  
Hill Country ◽  
Uniform Rate ◽  
The Cost ◽  
The Hill

Abstract Traditionally fertiliser has been aerially applied at a uniform rate to hill country, but the technology now exists to apply nutrients at a variable rate (VR) and each nutrient differentially, depending on the production potential and pasture composition of each part of the hill. A hypothetical case study of a sheep farm was modelled to show the economic benefits of VR application of phosphorus (P) and sulphur (S) and differential application of nitrogen (N), compared with application of a uniform rate of P and S. The financial analysis demonstrates that the VR strategy of less P and S to steeper slopes where there is low legume and more on easier slopes where there is more legume, costs less than the application of P and S at a uniform rate over all slopes. The cost saving could be used to apply N to steep land on both sunny and shady aspects and easy land on sunny aspects. This differential N application in late winter/early spring ensures better pasture cover for lactating ewes to improve ewe condition at weaning. When this gain in condition was maintained through to mating, lambing percentage increased in the following spring. The benefit from this increased lamb production was an increase in financial returns of $63/ha/year. A qualitative sensitivity analysis indicated that this value remains stable in response to changes in the proportion of each slope class, soil Olsen P level, the relative cost of fertiliser P and N and sheep to cattle ratio. Keywords: differential application, hill country, lamb production, nitrogen, phosphorus, aerial topdressing, variable rate

Quantifying the value proposition for white clover persistence on a New Zealand summer-dry hill-country farm

2020 ◽  
Vol 82 ◽  
pp. 199-209
Author(s):  
Mike B. Dodd ◽  
Katherine N. Tozer ◽  
Iris Vogeler ◽  
Rose Greenfield ◽  
David R. Stevens ◽  
...  
Keyword(s):  
White Clover ◽  
Net Present Value ◽  
Moisture Stress ◽  
Simulation Modelling ◽  
Low Fertility ◽  
System Modelling ◽  
Value Proposition ◽  
Hill Country ◽  
The North ◽  
Farm System

The improvement in forage quality and quantity of summer-dry hill country pasture resulting from the introduction of clover is well recognised. However, ensuring the persistence of the commonly availablecultivars is challenging, in the face of seasonal moisture stress, intensive grazing, competition from established well-adapted pasture species, low soil fertility and low soil pH – conditions typical of the East Coast of the North Island. Here we quantify the value proposition associated with the introduction of white clover into a case study on a Gisborne sheep and beef farm, using a six-step process. A topographically explicit approach is taken, using an understanding of the underlying spatial variability, based on a combination of soil and pasture measurements, APSIM simulation modelling of pasture growth and farm system modelling of enterprise performance. We show that from a baseline of a typical low-fertility, diverse species hill country pasture, white clover introduction can increase spring and summer forage consumption by 17%, enabling inclusion of an additional 6-month bull finishing enterprise generating a 32% greater carcass weight production and leading to a 49% improvement in farm system EBIT. This represents a positive net present value of over $360,000 for the original investment in white clover establishment into existing pastures.

KELOMPOK MUSIK REJUNG PESIRAH: STRATEGI ADAPTASI PADA MASYARAKAT PALEMBANG

2019 ◽  
Vol 2 (2) ◽  
pp. 27-37
Author(s):  
Dwi Putri Agustini
Keyword(s):  
Cultural Anthropology ◽  
Case Study Research ◽  
Traditional Music ◽  
Adaptation Strategy ◽  
The People ◽  
Musical Arrangements ◽  
The Face ◽  
Cultural Modification ◽  
Traditional Arts

The present phenomenon has clearly brought a change and the influence of the development of traditional music in Palembang society, if this is not carefully addressed, it will experience a shift, alienation and even lose its supporters. The rejung pesirah music group is one of the music groups that still maintains traditional arts in the people of Palembang. This study examines how the adaptation strategy of the rejung pesirah music group in dealing with changes and developments in Palembang society. For this reason, the approach used is cultural anthropology with qualitative case study research methods in Palembang. Data collection is done through observation, interviews and document studies that use triangulation techniques as the validation of the data, while for data analysis through content analysis and interactive models. The results showed that the adaptation strategy undertaken by the rejung pesirah music group was an act and creative ability and had a positive mindset, understanding in responding to changes and needs as an impulse to develop in the face of environmental change and development through learning processes and cultural modification, which resulted a creativity that is the creation of songs, musical arrangements, and musical instruments in the rejung pesirah music group.

scholarly journals William James and the Sustainable Transformation of Values, with a Case Study for Rethinking the American Dream

Human Arenas ◽  
2021 ◽  
Author(s):  
Paul Croce
Keyword(s):  
Economic Growth ◽  
Social Transformation ◽  
American Dream ◽  
William James ◽  
Social Issues ◽  
Virus Spread ◽  
Global Pandemic ◽  
The Face ◽  
The Many

AbstractThis article addresses the call of the Psychology of Global Crises conference for linkage of academic work with social issues in three parts: First, examples from conference participants with their mix of bold calls for social transformation and realization of limits, a combination that generated few clear paths to achieving them. Second, presentation of Jamesian practical idealism with psychological insights for moving past impediments blocking implementation of ideals. And third, a case study of impacts from the most recent prominent crisis, the global pandemic of 2020, which threatens to exacerbate the many crises that had already been plaguing recent history. The tentacles of COVID’s impact into so many problems, starting with economic impacts from virus spread, present an opportunity to rethink the hope for constant economic growth, often expressed as the American Dream, an outlook that has driven so many of the problems surging toward crises. Jamesian awareness of the construction of ideological differences and encouragement of listening to those in disagreement provide not political solutions, but psychological preludes toward improvements in the face of crises.

scholarly journals Principled Decision-Making Workflow with Hierarchical Bayesian Models of High-Throughput Dose-Response Measurements

Entropy ◽  
2021 ◽  
Vol 23 (6) ◽  
pp. 727
Author(s):  
Eric J. Ma ◽  
Arkadij Kummer
Keyword(s):  
Decision Making ◽  
High Throughput ◽  
Noisy Data ◽  
Hierarchical Bayesian ◽  
Hierarchical Bayesian Models ◽  
Melting Temperatures ◽  
Hierarchical Bayesian Estimation ◽  
The Face ◽  
Point Data

We present a case study applying hierarchical Bayesian estimation on high-throughput protein melting-point data measured across the tree of life. We show that the model is able to impute reasonable melting temperatures even in the face of unreasonably noisy data. Additionally, we demonstrate how to use the variance in melting-temperature posterior-distribution estimates to enable principled decision-making in common high-throughput measurement tasks, and contrast the decision-making workflow against simple maximum-likelihood curve-fitting. We conclude with a discussion of the relative merits of each workflow.

scholarly journals Indicators, security and sovereignty during COVID-19 in the Global South

2021 ◽  
Vol 17 (2) ◽  
pp. 249-260
Author(s):  
John Harrington
Keyword(s):  
Global Governance ◽  
Third World ◽  
Global South ◽  
Governance Mechanisms ◽  
Health Governance ◽  
The Face ◽  
Global North ◽  
The Government

AbstractThe spread of COVID-19 has seen a contest over health governance and sovereignty in Global South states, with a focus on two radically distinct modes: (1) indicators and metrics and (2) securitisation. Indicators have been a vehicle for the government of states through the external imposition and internal self-application of standards and benchmarks. Securitisation refers to the calling-into-being of emergencies in the face of existential threats to the nation. This paper contextualises both historically with reference to the trajectory of Global South states in the decades after decolonisation, which saw the rise and decline of Third-World solidarity and its replacement by neoliberalism and global governance mechanisms in health, as in other sectors. The interaction between these modes and their relative prominence during COVID-19 is studied through a brief case-study of developments in Kenya during the early months of the pandemic. The paper closes with suggestions for further research and a reflection on parallel trends within Global North states.

Evaluating the alliance in videolink teletherapy

1997 ◽  
Vol 3 (1_suppl) ◽  
pp. 33-35 ◽  
Author(s):  
G J Ghosh ◽  
P M Mclaren ◽  
J P Watson
Keyword(s):  
Working Alliance ◽  
Psychological Treatment ◽  
Single Case ◽  
Personality Factors ◽  
Control Group ◽  
Face To Face ◽  
Working Alliance Inventory ◽  
The Face

The use of videoconferencing in psychotherapy remains largely unexplored. Videoconferencing compromises the range and quality of interactional information and thus might be expected to affect the working alliance (WA) between client and therapist, and consequently the process and outcome of therapy. A single case study exploring the effect of videoconferencing on the development of the WA in the psychological treatment of a female–male transsexual is described. The self-rated Working Alliance Inventory (WAI) was used to measure client and therapist perceptions of the WA after each session over 10 sessions of eclectic therapy conducted over a videolink. The serial WAI measurements charting the development of the WA in 4 cases of 10-session, face-to-face therapy by Horvath and Marx1 were used as a quasi-control. Therapist and client impressions of teletherapy are described. WAI scores were essentially similar to the face-to-face control group except for lower client-rated bond subscale scores. It is suggested that client personality factors accounted for this difference and that videoconferencing did not impair the development of an adequate working alliance or successful therapeutic outcome.

scholarly journals Geospatial Serverless Computing: Architectures, Tools and Future Directions

2020 ◽  
Vol 9 (5) ◽  
pp. 311 ◽  
Author(s):  
Sujit Bebortta ◽  
Saneev Kumar Das ◽  
Meenakshi Kandpal ◽  
Rabindra Kumar Barik ◽  
Harishchandra Dubey
Keyword(s):  
Big Data ◽  
Forest Cover ◽  
Mineral Resources ◽  
Hyperspectral Data ◽  
Real Time Analysis ◽  
First Case ◽  
Amazon Web Services ◽  
Aws Lambda ◽  
Physical Features

Several real-world applications involve the aggregation of physical features corresponding to different geographic and topographic phenomena. This information plays a crucial role in analyzing and predicting several events. The application areas, which often require a real-time analysis, include traffic flow, forest cover, disease monitoring and so on. Thus, most of the existing systems portray some limitations at various levels of processing and implementation. Some of the most commonly observed factors involve lack of reliability, scalability and exceeding computational costs. In this paper, we address different well-known scalable serverless frameworks i.e., Amazon Web Services (AWS) Lambda, Google Cloud Functions and Microsoft Azure Functions for the management of geospatial big data. We discuss some of the existing approaches that are popularly used in analyzing geospatial big data and indicate their limitations. We report the applicability of our proposed framework in context of Cloud Geographic Information System (GIS) platform. An account of some state-of-the-art technologies and tools relevant to our problem domain are discussed. We also visualize performance of the proposed framework in terms of reliability, scalability, speed and security parameters. Furthermore, we present the map overlay analysis, point-cluster analysis, the generated heatmap and clustering analysis. Some relevant statistical plots are also visualized. In this paper, we consider two application case-studies. The first case study was explored using the Mineral Resources Data System (MRDS) dataset, which refers to worldwide density of mineral resources in a country-wise fashion. The second case study was performed using the Fairfax Forecast Households dataset, which signifies the parcel-level household prediction for 30 consecutive years. The proposed model integrates a serverless framework to reduce timing constraints and it also improves the performance associated to geospatial data processing for high-dimensional hyperspectral data.

Implications of uncertainty on firm outsourcing decisions

2006 ◽  
Vol 25 (2) ◽  
pp. 115-125
Author(s):  
David R. King
Keyword(s):  
Transaction Costs ◽  
New Products ◽  
Industry Structure ◽  
Management Research ◽  
Research And Practice ◽  
The Face ◽  
Sourcing Decisions ◽  
Related Transaction

Outsourcing inherently considers what activity needs to reside within a given firm. The difficulty of exchanges between firms in the face of uncertainty affects where work on developing and producing new products is performed. Theory is developed and explored using a case study that explains firm sourcing decisions as a response to uncertainty within the context of industry structure and related transaction costs. Viewing outsourcing broadly results in a better delineation of outsourcing options. Implications for management research and practice are identified.

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