Enhancing investment in the compounded feeds subsector in Tanzania

Irish Ai

Design And Evaluation Of An Internet Study Tool As A Data Collection Device

This paper describes the design, capabilities, strengths and weaknesses of a tool that collects data from subjects through the Internet. The Internet tool was designed for students studying cardinalities, a difficult data modeling topic frequently taught in the accounting information systems course. The Internet tool was able to observe usage and task accomplishments of subjects. We used these observations to learn characteristics about tool usage and to compare computer-recorded and self-reported data. These comparisons allow us to evaluate the Internet tool as a data collection device

Dissimilar response of plant and soil biota communities to long-term nutrient adition in grasslands

The long-term effect of fertilizers on plant diversity and productivity is well known, but long-term effects on soil biota communities have received relatively little attention. Here, we used an exceptional long-lasting (>40 years) grassland fertilization experiment to investigate the long-term effect of Ca, N, PK, and NPK addition on the productivity and diversity of both vegetation and soil biota. Whereas plant diversity increased by liming and decreased by N and NPK, the diversity of nematodes, collembolans, mites, and enchytraeids increased by N, PK, or NPK. Fertilization with NPK and PK increased plant biomass and biomass of enchytraeids and collembolans. Biomass of nematodes and earthworms increased by liming. Our results suggest that soil diversity might be driven by plant productivity rather than by plant diversity. This may imply that the selection of measures for restoring or conserving plant diversity may decrease soil biota diversity. This needs to be tested in future experiment

Let's Agree to Degree: Comparing Graph Convolutional Networks in the Message-Passing Framework

In this paper we cast neural networks defined on graphs as message-passing neural networks (MPNNs) in order to study the distinguishing power of different classes of such models. We are interested in whether certain architectures are able to tell vertices apart based on the feature labels given as input with the graph. We consider two variants of MPNNS: anonymous MPNNs whose message functions depend only on the labels of vertices involved; and degree-aware MPNNs in which message functions can additionally use information regarding the degree of vertices. The former class covers a popular formalisms for computing functions on graphs: graph neural networks (GNN). The latter covers the so-called graph convolutional networks (GCNs), a recently introduced variant of GNNs by Kipf and Welling. We obtain lower and upper bounds on the distinguishing power of MPNNs in terms of the distinguishing power of the Weisfeiler-Lehman (WL) algorithm. Our results imply that (i) the distinguishing power of GCNs is bounded by the WL algorithm, but that they are one step ahead; (ii) the WL algorithm cannot be simulated by "plain vanilla" GCNs but the addition of a trade-off parameter between features of the vertex and those of its neighbours (as proposed by Kipf and Welling themselves) resolves this problem.Comment: 22 page

The Senior Housing Shuffle:Connecting Public Policy To Universal Design, Sustainability, Health Management, And Aging In Place

Having faced the turbulent waters of uncertainty connected with the underfunding of human service and health management programs before, Judy Jones, in this two part case study, is excited to learn of a major historical restoration in Uptown — a neighborhood of rich historical heritage and architecture which, over the decades, had fallen into disrepair and instability. Old Emory School was to be restored for use as a new senior housing facility by Preservation Incorporated. She knew that realities often fail to measure up to expectations in housing accessibility, affordability, safety, and health care management for the residents, and this was the situation she faced once more. Common managerial and housing related problems are encountered and Judy reflects on the advantages of a built environment that uses universal design principles and wonders why real estate and commercial developers, architects, and urban planners are not more sensitive to these orientations. Based on experience, common housing shortcomings are identified and their relationship to aging in place, sustainability, and selected titles of the Americans with Disability Act, 1990 (ADA, 1990), are explored

Eupsychian Management: Organizational Change, Behavior, Motivation, And Trust

In Part 1 of this real-life incident, Professor Carson is teaching the customary material associated with the multiple theories of leadership, motivation, and organizational behavior. He deviates slightly from the way he normally presents these standard concepts and theories and divulges the concept of Eupsychian Management — a culture in which self-actualizing people behave in ways where trust begets trust and work is viewed as natural as play or rest. The class is given the following website www.interpolis.nl which demonstrates how the built environment of Interpolis relates to its organizational culture and behavior. In Part 2, the content of a personal interview that he conducted in Tilburg, The Netherlands — the home of Interpolis is elaborated. A new organizational culture based on “trust” — both of employees and customers is revealed. The end performance results and the productivity metrics are unbelievably high. The reader is challenged to address the content of seven penetrating questions and instructions which are part of the learning module; then, is asked to complete the case log and administrative journal entry