SUPPLY CHAIN COORDINATION: A CASE STUDY OF VEGETABLE GROWERS IN COLORADO

Small agricultural producers around the country are finding it increasingly difficult to remain competitive in a market place dominated by the consolidation of agricultural production. This consolidation has had a serious impact on vegetable growers in northeastern Colorado who have recently banded together to form a cooperative in the hopes that they would be in a better position to market their vegetables. This paper discusses the results of the market and feasibility study. Section I provides a review of the literature on vertical coordination. Section II details the analysis of the fresh and processed vegetable market. Section III then provides a discussion of the processing feasibility study and addresses the importance of incorporating knowledge management into production decisions-even for producers with small operations. The paper then closes with recommendations and directions for future studies.Industrial Organization,

Large Area Crop Inventory Experiment (LACIE). A wheat yield model for Punjab, India

There are no author-identified significant results in this report

Resource Requirements for Different Levels of Income on Faulk County, South Dakota Farms and Ranches

The purpose of this study was to determine the minimum resources (land, labor, cash or credit) required to earn $3,000,$5,000 or $10,000 annual labor income in Faulk and nearby counties with comparable land

OPTIMALITY CRITERIA FOR HUMAN RUNNING INVESTIGATED BY FORWARD DYNAMICS SIMULATIONS

There are currently no generally accepted optimality criteria for human running. The purpose of the study was to test a set of potential criteria by generating performance based forward dynamics simulations. Simulation results were compared to measurements from human runners. Minimizing muscle activation generated the simulation that most accurately matched the experimental kinematic and metabolic data. The results suggest that minimizing activation, which avoids fatiguing any one muscle, is an important control policy for human running

Women and BIPOC in Aerospace: Where Did They Come From and How Did They Get Here?

The low number of women and black, indigenous, and people of color (BIPOC) compared to their population, is well-documented in engineering, engineering technology, and other STEM fields. Through this and ancillary documentation there is agreement that increasing the numbers of women and other minorities in these areas will enhance productivity and the breadth of new innovation. Many efforts have been made to increase the number of women and BIPOC in STEM fields. The result of those efforts has been disappointing as they have resulted in minimal growth in engineering and virtual stagnation in other areas of STEM. The aviation and aerospace industries are facing significant difficulties in filling technical positions for people with STEM credentials. One may argue that current conditions create a slowdown in the demand for people in these positions; however, the current slowdown in aerospace provides time to further develop the pipeline to be ready for the expected resurgence of need in this area. To meet this demand, targeted efforts need to be designed and implemented to attract, educate, employ, and retain these highly skilled women and the BIPOC demographic. Since these groups are historically underrepresented in STEM, an added opportunity to bridge the population gap in fields such as those identified in the aerospace industry. This study aims to review the existing research on why women and BIPOC enter technical fields, the challenges they find, what makes them stay or leave, and what are some of the alternative pathways to increase the population of women and BIPOC in the aerospace industry

Chain failure and chain goods: re-thinking value chain upgrading and promotion in developing countries

The concept of value chain upgrading and promotion has been proposed as a vehicle for small-holder farmers in developing countries to gain access to higher value markets and thus generate greater income for their families and communities. However, there are many instances where investments in upgrading have not generated the expected outcomes. One of the contributing factors has been that existing approaches focus more on who does what rather than the real problem to be addressed. A chain failure framework on the other hand focuses attention on the core problem and the appropriate response, rather than on who does what. It takes a system view rather than a function or component view, and it starts from the supposition that the only reason for intervening in a value chain is to increase chain surplus, where chain surplus is properly measured to include any chain or social externalities. In this paper we review some of the existing literature on value chain upgrading and promotion as proposed for developing country situations, outline the essential elements of the chain failure/chain good theory and its relationship to the club goods literature, and then assess whether the chain upgrading and promotion literature can be reconfigured as a chain failure/chain good problem, using a number of published case studies. Finally, we discuss various types of governance models used in agricultural value chains in developing countries and suggest how well they might align with the chain failure/chain good approach.Garry Griffith, Derek Baker, Euan Fleming, Stuart Mounter, Bill Malcolm, Wendy Umberge

Branding fresh food: Who is willing to pay more for beef?

Retail beef markets not offering objective grade indicators in-store leave consumers uncertain about the quality of beef they purchase. The introduction of fresh brands can better meet consumers’ expectations. Willingness-to-pay for ‘ideal’ quality cuts represents the maximum premiums brands could achieve. Using Australian consumers’ survey data, the maximum premiums are modelled using zero-inflated negative binomial models. Results indicate that buyer’s characteristics and perceptions about product attributes influence the premiums for high-quality beef that consumers are willing to pay for a cut considered ‘ideal’, indicating the maximum premium that brands could achieve in relevant segments. The premiums indicate there is substantial potential for beef cuts that reduce purchase risk by more assuredly meeting buyer’s preferences in Australia

Arl13b-regulated cilia activities are essential for polarized radial glial scaffold formation

The construction of cerebral cortex begins with the formation of radial glia. Once formed, polarized radial glial cells divide either symmetrically or asymmetrically to balance appropriate production of progenitor cells and neurons. Upon birth, neurons use the processes of radial glia as scaffolding for oriented migration. Radial glia thus provide an instructive structural matrix to coordinate the generation and placement of distinct groups of cortical neurons in the developing cerebral cortex. Here we show that Arl13b, a cilia-specific small GTPase mutated in Joubert syndrome patients, is critical for the initial formation of the polarized radial progenitor scaffold. Through developmental stage-specific deletion of Arl13b in mouse cortical progenitors, we found that early neuroepithelial deletion of ciliary Arl13b leads to a reversal in the apical-basal polarity of radial progenitors and aberrant neuronal placement. Arl13b modulates ciliary signaling necessary for radial glial polarity. Our findings demonstrate that Arl13b signaling in primary cilia is important for the initial formation of a polarized radial glial scaffold and suggest that disruption of this process may contribute to aberrant neurodevelopment and brain abnormalities in Joubert syndrome-related ciliopathies

Collective Dynamics of Specific Gene Ensembles Crucial for Neutrophil Differentiation: The Existence of Genome Vehicles Revealed

Cell fate decision remarkably generates specific cell differentiation path among the multiple possibilities that can arise through the complex interplay of high-dimensional genome activities. The coordinated action of thousands of genes to switch cell fate decision has indicated the existence of stable attractors guiding the process. However, origins of the intracellular mechanisms that create “cellular attractor” still remain unknown. Here, we examined the collective behavior of genome-wide expressions for neutrophil differentiation through two different stimuli, dimethyl sulfoxide (DMSO) and all-trans-retinoic acid (atRA). To overcome the difficulties of dealing with single gene expression noises, we grouped genes into ensembles and analyzed their expression dynamics in correlation space defined by Pearson correlation and mutual information. The standard deviation of correlation distributions of gene ensembles reduces when the ensemble size is increased following the inverse square root law, for both ensembles chosen randomly from whole genome and ranked according to expression variances across time. Choosing the ensemble size of 200 genes, we show the two probability distributions of correlations of randomly selected genes for atRA and DMSO responses overlapped after 48 hours, defining the neutrophil attractor. Next, tracking the ranked ensembles' trajectories, we noticed that only certain, not all, fall into the attractor in a fractal-like manner. The removal of these genome elements from the whole genomes, for both atRA and DMSO responses, destroys the attractor providing evidence for the existence of specific genome elements (named “genome vehicle”) responsible for the neutrophil attractor. Notably, within the genome vehicles, genes with low or moderate expression changes, which are often considered noisy and insignificant, are essential components for the creation of the neutrophil attractor. Further investigations along with our findings might provide a comprehensive mechanistic view of cell fate decision

The relationship between cadence, pedalling technique and gross efficiency in cycling

Technique and energy saving are two variables often considered as important for performance in cycling and related to each other. Theoretically, excellent pedalling technique should give high gross efficiency (GE). The purpose of the present study was to examine the relationship between pedalling technique and GE. 10 well-trained cyclists were measured for GE, force effectiveness (FE) and dead centre size (DC) at a work rate corresponding to ~75% of VO2max during level and inclined cycling, seat adjusted forward and backward, at three different cadences around their own freely chosen cadence (FCC) on an ergometer. Within subjects, FE, DC and GE decreased as cadence increased (p < 0.001). A strong relationship between FE and GE was found, which was to great extent explained by FCC. The relationship between cadence and both FE and GE, within and between subjects, was very similar, irrespective of FCC. There was no difference between level and inclined cycling position. The seat adjustments did not affect FE, DC and GE or the relationship between them. Energy expenditure is strongly coupled to cadence, but force effectiveness, as a measure for pedalling technique, is not likely the cause of this relationship. FE, DC and GE are not affected by body orientation or seat adjustments, indicating that these parameters and the relationship between them are robust to coordinative challenges within a range of cadence, body orientation and seat position that is used in regular cycling