Bulletin No. 132 - Minor Dry Land Crops at the Nephi Experiment Farm

The investigations conducted at the Nephi substation deal primarily with cereals; other crops, such as alfalfa, peas, corn, potatoes, etc., have occupied only a secondary position in the work of this station. This necessarily has been true because the experiments are confined to dry-land practices, and the cereals unquestionably comprise the basal crops for dry-land farming as it is now understood and practiced in Utah. No crops have been found as yet which yield so profitably on the dry lands as do the cereals, especially winter varieties. The purpose of this bulletin is to review the work done on the Nephi substation with crops other than cereals, and to point out the possible utilization of the results obtained. Both success and failure have been experienced in this work, with no truly startling results; but sufficient promising data are included in the results to warrant publication at this time. It is believed that the publication of these results will stimulate further efforts along these lines

Circular No. 76 - The Utah Agricultural Experiment Station

The Utah Agricultural Experiment Station is one ,of three major divisions of the Agricultural College of Utah, these divisions being: (1) The College proper, (2) the Agricultural Experiment Station, and (3) the Agricultural Extension Service

Dimension Reduction via Colour Refinement

Colour refinement is a basic algorithmic routine for graph isomorphism testing, appearing as a subroutine in almost all practical isomorphism solvers. It partitions the vertices of a graph into "colour classes" in such a way that all vertices in the same colour class have the same number of neighbours in every colour class. Tinhofer (Disc. App. Math., 1991), Ramana, Scheinerman, and Ullman (Disc. Math., 1994) and Godsil (Lin. Alg. and its App., 1997) established a tight correspondence between colour refinement and fractional isomorphisms of graphs, which are solutions to the LP relaxation of a natural ILP formulation of graph isomorphism. We introduce a version of colour refinement for matrices and extend existing quasilinear algorithms for computing the colour classes. Then we generalise the correspondence between colour refinement and fractional automorphisms and develop a theory of fractional automorphisms and isomorphisms of matrices. We apply our results to reduce the dimensions of systems of linear equations and linear programs. Specifically, we show that any given LP L can efficiently be transformed into a (potentially) smaller LP L' whose number of variables and constraints is the number of colour classes of the colour refinement algorithm, applied to a matrix associated with the LP. The transformation is such that we can easily (by a linear mapping) map both feasible and optimal solutions back and forth between the two LPs. We demonstrate empirically that colour refinement can indeed greatly reduce the cost of solving linear programs

Effectiveness of interventions using self-monitoring to reduce sedentary behavior in adults : a systematic review and meta-analysis

Background: Sedentary behavior occurs largely subconsciously, and thus specific behavior change techniques are needed to increase conscious awareness of sedentary behavior. Chief amongst these behavior change techniques is self-monitoring of sedentary behavior. The aim of this systematic review and meta-analysis was to evaluate the short-term effectiveness of existing interventions using self-monitoring to reduce sedentary behavior in adults. Methods: Four electronic databases (PubMed, Embase, Web of Science, and The Cochrane Library) and grey literature (Google Scholar and the International Clinical Trials Registry Platform) were searched to identify appropriate intervention studies. Only (cluster-)randomized controlled trials that 1) assessed the short-term effectiveness of an intervention aimed at the reduction of sedentary behavior, 2) used self-monitoring as a behavior change technique, and 3) were conducted in a sample of adults with an average age >= 18 years, were eligible for inclusion. Relevant data were extracted, and Hedge's g was used as the measure of effect sizes. Random effects models were performed to conduct the meta-analysis. Results: Nineteen intervention studies with a total of 2800 participants met the inclusion criteria. Results of the meta-analyses showed that interventions using self-monitoring significantly reduced total sedentary time (Hedges g = 0,32; 95% CI = 0,14 - 0,50; p = 0,001) and occupational sedentary time (Hedge's g = 0,56; 95% CI = 0,07 - 0,90; p = 0,02) on the short term. Subgroup analyses showed that significant intervention effects were only found if objective self-monitoring tools were used (g = 0,40; 95% CI = 0,19 - 0,60; p < 0,001), and if the intervention only targeted sedentary behavior (g = 0,45; 95% CI = 0,15-0,75; p = 0,004). No significant intervention effects were found on the number of breaks in sedentary behavior. Conclusions: Despite the small sample sizes, and the large heterogeneity, results of the current meta-analysis suggested that interventions using self-monitoring as a behavior change technique have the potential to reduce sedentary behavior in adults. If future - preferably large-scale studies - can prove that the reductions in sedentary behavior are attributable to self-monitoring and can confirm the sustainability of this behavior change, multi-level interventions including self-monitoring may impact public health by reducing sedentary behavior

Deploying Mindfulness to Gain Cognitive Advantage: Considerations for Military Effectiveness and Well-being

Mindfulness involves paying attention to present moment experience without discursive commentary or emotional reactivity. Mindfulness training (MT) programs aim to promote this mental mode via introduction to specific mindfulness exercises, related in-class discussion, and ongoing engagement in mindfulness exercises. MT is being increasingly offered to high-demand, high-stress military/uniformed and civilian cohorts with a wide array of reported benefits. Herein, we begin by discussing recent theoretical models regarding MT’s mechanisms of action from a cognitive training/cognitive neuroscience perspective, which propose that MT engages and strengthens three key processes [e.g., 1]. These are: 1) attentional orienting, which is the ability to select and sustain attention on a subset of information while remaining undistracted; 2) meta-awareness, which is the ability to monitor one’s ongoing experience with an awareness of doing so; and 3) decentering, which is the ability to view one’s experience at a psychological distance so that biases, mind-sets, and interpretations are viewed as mental processes rather than accurate depictions of reality. Next, we review evidence of MT’s beneficial effects on cognitive, social, and emotional dimensions of human behavior, which are aligned with military frameworks describing the human dimension [e.g., 2]. We then discuss attitudinal impediments to broad adoption of MT in military settings, and propose counterarguments so as to facilitate its implementation. We end by arguing that MT should be considered a key cognitive training tool by which to achieve cognitive advantage in the service of improved operational readiness and effectiveness, as well as greater resilience and well-being in military/uniformed cohorts

LABOR LAW-INJUNCTION-UNITED STATES v. UNITED MINE WORKERS OF AMERICA

This comment was originally prepared as a discussion of the decision of the District Court for the District of Columbia. Since it seemed probable that the Supreme Court\u27s decision would be rendered before or shortly after the comment could be published in normal course, the editors decided to delay the printing of this issue of the Review so that a discussion of the Supreme Court opinions could be included. References to the opinions of the Supreme Court Justices appear in brackets.Ed.] Following a breakdown in the collective bargaining process in the spring of 1946 between the majority of the nation\u27s bituminous coal mine operators on the one hand and the United Mine Workers of America on the other, the President of the United States, acting under authority of the War Labor Disputes Act, ordered the Secretary of the Interior to take possession of the mines where operation was interrupted or threatened with interruption. Pursuant to the order, on May 22, 1946 the United States, through the Secretary of the Interior, took possession of most of the bituminous coal mines of the nation. Subsequently, a contract, embodying changes in wages and other terms and conditions of employment, was executed by the Secretary of the Interior, Julius A. Krug, for the government and by the president of the United Mine Workers, John L. Lewis, for the union. After approximately five months of operation under this contract, Lewis demanded renegotiation, relying on a construction of the contract which Krug insisted was erroneous. After a series of conferences, which began on November 1, 1946, the union and the government had not agreed on the construction of the contract or on any change in the terms of employment. On November 15, 1946, Lewis issued a unilateral notice of termination of the contract, effective November 20, in accordance with the construction of the contract for which he contended

Bulletin No. 203 - Cattle Ranching in Utah: Report of a Preliminary Economic Survey of the Ranch Situations as of 1925

The Mexican War ended in 1846, but the treaty of Guadalupe Hidalgo was not signed until 1848. Meantime, Utah was occupied by the Mormon pioneers, who having no land laws to guide them took land according to a plan furnished by Brigham Young. In Salt Lake City 10-acre blocks were divided into 8 building lots of 1 1/4 acres each. Just at the edge of the city were five acre lots to accommodate mechanics and artisans; next beyond were 10-acre lots, followed by forty and eighty acres, where farmers could build and reside