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Groundwater levels across parts of western Kansas have been declining at unsustainable rates due to pumping for agricultural irrigation despite water‐saving efforts. Accelerating this decline is the complex agricultural landscape, consisting of both categorical (e.g., management boundaries) and numerical (e.g., crop prices) factors that drive irrigation decisions, making integrated water budget management a challenge. Furthermore, these factors frequently change through time, rendering management strategies outdated within relatively short time scales. This study uses boosted regression trees to simultaneously analyze categorical and numerical data against annual irrigation pumping to determine the relative influence of each factor on groundwater pumping across both space and time. In all, 45 key water use variables covering approximately 19,000 groundwater wells were tested against irrigation pumping from 2006 to 2016 across five categories: (1) management/policy, (2) hydrology, (3) weather, (4) land/agriculture, and (5) economics. Study results showed that variables from all five categories were included among the top 10 drivers to irrigation, and the greatest influence came from variables such as irrigated area per well, saturated thickness, soil permeability, summer precipitation, and pumping costs (depth to water table). Variables that had little influence included regional management boundaries and irrigation technology. The results of this study are further used to target the factors that statistically lead to the greatest volumes of groundwater pumping to help develop robust management strategy suggestions and achieve water management goals of the region. Plain Language Summary: Water use for crops has lowered groundwater levels in western Kansas. Past studies have shown that this water use is driven by many factors spanning policy, economics, and the physical environment. Because of this complexity, it has been difficult to fully understand which factors most drive irrigation use relative to each other. This study uses a machine‐learning model to rank the influence of 45 factors on irrigation pumping. These factors are analyzed over space (∼19,000 wells across western Kansas) and time (2006–2016). Based on this study, drivers to water use include total irrigated area, summer rainfall, and depth to the water table. Factors that have little influence include management district boundaries and irrigation system type. These results are used to make water management suggestions for the region. Key Points: The relative influence of drivers to irrigation pumping in western Kansas is modeled from 2006 to 2016 using boosted regression treesSite‐specific factors are more influential than regional policies, and weather‐related factors are more influential at longer time scalesIrrigation decision making largely follows resource availability and operation cost considerations over localized management schemes [ABSTRACT FROM AUTHOR]

This study examines experiences of individual patients and psychiatrists in the Henry Phipps Psychiatric Clinic at Johns Hopkins between 1913 and 1917. The dynamics of these patient-psychiatrist interactions elucidate the well-known conceptual shift in explanations of mental illness during the twentieth century, from somatic models rooted in the logic of 'neurasthenia' and damaged nerves to psychodynamic models based on the notion of 'subconscious conflict.' A qualitative analysis of 336 cases categorized as functional disorders (a catchall term in this period for illnesses that could not be confirmed as organic diseases), shows that patients explained their symptoms and suffering in terms of bodily malfunctions, and, particularly, as a 'breakdown' of their nervous apparatus. Psychiatrists at the Phipps Clinic, on the other hand, working under the direction of its prominent director, Adolf Meyer, did not focus their examinations and therapies on the body's nervous system, as patients expected. They theorized that the characteristic symptoms of functional disorders-chronic exhaustion, indigestion, headaches and pain, as well as strange obsessive and compulsive behaviors-resulted from a distinct pathological mechanism: a subconscious conflict between powerful primal and social impulses. Phipps patients were often perplexed when told their physical symptoms were byproducts of an inner psychological struggle; some rejected the notion, while others integrated it with older explanations to reconceptualize their experiences of illness. The new concept also had the potential to alter psychiatrists' perceptions of disorders commonly diagnosed as hysteria, neurasthenia, or psychoneuroses. The Phipps records contain examples of Meyer and his staff transcending the frustration experienced by many doctors who had observed troubling but common behaviors in such cases: morbid introspection, hypochondria, emotionalism, pity-seeking, or malingering. Subconscious conflict recast these behaviors as products of 'self-deception,' which both absolved the sufferer and established an objective clinical marker by which a trained specialist could recognize functional disorder. Using individual case studies to elucidate the disjunction between patients' and psychiatrists' perspectives on what all agreed were debilitating illnesses, this analysis helps to illuminate the origins of a radical transformation in psychiatric knowledge and popular culture in the twentieth century-from somatic to psychodynamic explanations of mental illness. [ABSTRACT FROM AUTHOR]