A PARTIAL-ADJUSTMENT, MIXED LINEAR MODEL OF PRICE DISCOVERY IN AN EXPERIMENTAL MARKET FOR FED CATTLE

The Fed Cattle Market Simulator (FCMS) was developed by a team of researchers at Oklahoma State University to aid in understanding the forces that influence price discovery in the fed cattle market. Participants in the FCMS play the role of feedlot marketing managers and packing plant procurement agents, and trade paper pens of cattle in the experimental market. Previous research with the FCMS has not attempted to capture the dynamic nature of the price discovery process; this paper uses a partial-adjustment approach to accomplish that goal. A mixed linear model is used to accommodate both fixed and random effects in the data. Results show that the transaction price adjusts only sixteen percent on a week-by-week basis to its desired level. As such, the price discovery process in the experimental market is said to be characterized by slow adjustment, due in part to biological lags in the beef supply chain. This result will be useful in enhancing understanding of the real fed cattle market.Livestock Production/Industries,

Agriculture to forestry in western Canada's northern grain belt : impacts on rural communities

This study investigates impacts on Western Canada’s rural communities that may result from land usage change from conventional agriculture to that of forestry, in part or in whole. Many of Western Canada’s rural communities in the agriculture regions near the tree line have developed around cash crops (cereal/oilseeds) and livestock production. Through the Government of Canada’s commitments to achieve targeted greenhouse gas emission levels, a market may develop where landowners will be adequately compensated to initiate a switch from conventional agriculture to that of forestry. This study finds that forestry and agricultural regions have over time developed different business structures to support local industry demands. Because of this, converting land use to forestry from agriculture will likely have a significant impact on the rural communities that serve the local economy. Results also showed that population change is significantly influenced by the percentage of people employed in agricultural and by proximity to larger urban centres

Comparing Canadian and U.S. Cattle Feeding Pricing Practices and Perceptions of Pricing Issues

Competition among beef packing firms, use of so-called captive supply, and methods of price discovery have been prolonged, contentious issues in the U.S. beef industry for two decades or more. While of lesser apparent concern in Canada for many years, these same matters rose to the forefront of beef industry issues after the Canada–U.S. border closure that resulted from Canada’s first case of bovine spongiform encephalopathy (BSE) in May 2003.Marketing,

Success Factors for New Generation Cooperatives

The goal of this research was to determine success factors for New Generation Cooperatives (NGCs). A self-explicated approach was used to assess the importance of various factors grouped in broad categories using data collected from a mailout survey of NGC managers. Results suggest that factors in the "Planning and Development" and "Financing and Costs" categories are considered to be critically important by NGC managers, though differences in factor rankings exist between managers of enterprises involved in the processing of different commodities.New Generation Cooperative, self-explication, Agribusiness,

SUCCESS FACTORS FOR VALUE ADDED NEW GENERATION COOPERATIVES

Two surveys of New Generation Cooperative (NGC) managers were carried out to ascertain the factors most important to their success. Factors in the Planning and Development as well as the Financing and Cost categories were most important, and NGCs with more employees and more members' equity are most successful.Agribusiness,

For Your Eyes Only, Herpes Zoster Ophthalmicus Case Study

Herpes Zoster Ophthalmicus is a reactivation of a latent Varicella Zoster Virus that specifically involves the eye. The reactivation often occurs during immunocompromised states which allows latent virus in the dorsal root ganglia of sensory nerves to begin viral replication an d s pread via peripheral axons. Diagnosis is based on two characteristic findings; herpetic lesions on the eyelids, forehead, or elsewhere within the V1 dermatome, and ocular findings. Symptoms can vary but are often quite painful. Some patients experience a prodrome of tingling sensation prior to the appearance of a zoster dermatitis . HZO can also present initially as flu like symptoms before developing into pain over a trigeminal nerve dermatome followed by a zoster rash. The rash manifests as an erythematous macular rash that progresses to raised papules, vesicles, and pustules that eventually rupture. Patients with nasocilliary nerve involvement often develop zoster lesions of the distal nose (Hutchinson’s sign). This subset of patients is at much higher risk of developing involvement of the Ocular pain, edema, conjunctival hyperemia, and photophobia are all suggestive of globe involvement. HZO is considered an ophthalmologic emergency. If the infection is left untreated, keratitis, uveitis, retinitis and permanent and severe irreversible vison loss are all potential complications. The diagnosis of HZO is typically made clinically from history and physical exam. Diagnostic testing is not indicated unless there are complications with the course of disease or atypical symptoms leading to clinical uncertainty. Treatment consists of oral acyclovir or alternate antivirals which have been shown to decrease the adverse outcomes related t o HZO, particularly if started in the first 72 hours of initial onset of symptoms. Additionally, patients with eye involvement should receive topical hydrocortisone ophthalmic ointment to promote skin healing an d provide additional analgesia. Steroid therapy comes with potential risks of immunosuppression and worsening ulceration, however, it should always be used in conjunction with antiviral medications and urgent ophthalmology consultation. Finally, attentive pain control with multimodal analgesia is important to help patients manage painful symptoms. In high risk patients, IV acyclovir and emergent ophthalmology consultation are recommended. These patients include immunosuppressed patients, those with involvement of the retina or cornea, and those with superimposed bacterial infection

Self-optimization of Stride Length Among Experienced and Inexperienced Runners

International Journal of Exercise Science 10(3): 446-453, 2017. Experienced runners appear to naturally select a stride length which is optimal for minimizing oxygen uptake. However, whether this ability is naturally built into the human body or whether it is learned through experience has not been previously tested. This study investigated whether inexperienced runners are as capable as experienced runners of self-optimizing stride length to minimize oxygen uptake. Thirty-three subjects (nineteen experienced and fourteen inexperienced) ran for twenty-minutes while preferred and economical stride lengths were measured. A t-test checked for differences between the experienced and inexperienced groups in the percent increase of oxygen uptake due to not running at the most economical stride length. No difference was found between groups with the increase in oxygen uptake due to not being optimized (p=0.47). The average percent increase in oxygen uptake above the most economical for inexperienced and experienced runners was 1.8% and 1.2% respectively. We concluded that inexperienced and experienced runners are equally capable of matching preferred stride length to economical stride length, thus athletes and coaches do not need to alter runner’s stride length when economy is the main concern

Shall Be Bright at Last: Reflections on Suffering and Hope in the Letters of Paul

These nine essays on suffering offer exercises in Christian hope. The contributors reveal honest and tender wounds of the many harsh realities of life in a broken world awaiting full redemption. They meditate on Paul\u27s holy words that teach us to pray with expectation and live by faith. They encourage fellow pilgrims to trust the path and stick together. Shall Be Bright at Last is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License, except where otherwise noted. CC BY-NC-SAhttps://digitalcommons.georgefox.edu/monographs/1000/thumbnail.jp

Assessing Medical Student’s Ability to Interpret Traumatic Injuries on Computed Tomography Before and After the Third Year Clerkships

Introduction. Exposure to radiologic images during clinical rotationsmay improve students’ skill levels. This study aimed to quantifythe improvement in radiographic interpretation of life-threateningtraumatic injuries gained during third year clinical clerkships (MS-3). Methods. We used a paired-sample prospective study design tocompare students’ accuracy in reading computed tomography (CT)images at the beginning of their third year clerkships (Phase I) andagain after completion of all of their third year clerkships (Phase II).Students were shown life-threatening injuries that included head,chest, abdomen, and pelvic injuries. Overall scores for Phase II werecompared with Phase I, as well as sub-scores for each anatomicalregion: head, chest, abdomen, and pelvis. Results. Only scores from students participating in both Phase Iand Phase II (N = 57) were used in the analysis. After completingtheir MS3 clerkship, students scored significantly better overall andin every anatomical region. Phase I and Phase II overall mean scoreswere 1.2 ± 1.1 vs. 4.6 ± 1.8 (p < 0.001). Students improved the mostwith respect to injuries of the head and chest and the area of leastimprovement was in interpreting CT scans of the abdomen. Althoughimprovements in reading radiographic images were noted after theclerkship year, students accurately diagnosed only 46% of life-threateningimages on CT scan in the trauma setting. Conclusions. These results indicated that enhanced education isneeded for medical students to interpret CT scans.Kans J Med 2018;11(4):91-94

Discovery and Validation of a High-Density sub-Neptune from the K2 Mission

We report the discovery of BD+20594b, a high density sub-Neptune exoplanet, made using photometry from Campaign 4 of the two-wheeled Kepler (K2) mission, ground-based radial velocity follow-up from HARPS and high resolution lucky and adaptive optics imaging obtained using AstraLux and MagAO, respectively. The host star is a bright ($V=11.04$, $K_s = 9.37$), slightly metal poor ([Fe/H]$=-0.15\pm 0.05$ dex) solar analogue located at $152.1^{+9.7}_{-7.4}$ pc from Earth, for which we find a radius of $R_*=0.928^{+0.055}_{-0.040}R_\odot$ and a mass of $M_* = 0.961^{+0.032}_{-0.029}M_\odot$. A joint analysis of the K2 photometry and HARPS radial velocities reveal that the planet is in a $\approx 42$ day orbit around its host star, has a radius of $2.23^{+0.14}_{-0.11}R_\oplus$, and a mass of $16.3^{+6.0}_{-6.1}M_\oplus$. Although the data at hand puts the planet in the region of the mass-radius diagram where we could expect planets with a pure rock (i.e. magnesium silicate) composition using two-layer models (i.e., between rock/iron and rock/ice compositions), we discuss more realistic three-layer composition models which can explain the high density of the discovered exoplanet. The fact that the planet lies in the boundary between "possibly rocky" and "non-rocky" exoplanets, makes it an interesting planet for future RV follow-up.Comment: 12 pages, 11 figures. Accepted for publication in Ap