Kentucky Space Grant Consortium

ABSTRACT: Apart from respiratory symptoms, encephalopathy and a range of central nervous system complications have been described in coronavirus disease 2019. However, there is a lack of published literature on the rehabilitative course and functional outcomes of severe coronavirus disease 2019 with encephalopathy. In addition, the presence of subclinical neurocognitive sequelae during postacute rehabilitation has not been described and may be underrecognized by rehabilitation providers. We report the rehabilitative course of a middle-aged male patient with severe coronavirus disease 2019 who required intensive care and mechanical ventilation. During postacute inpatient rehabilitation for severe intensive care unit-related weakness, an abnormal cognitive screen prompted brain magnetic resonance imaging, which revealed destructive leukoencephalopathy. Subsequently, detailed psychometric evaluation revealed significant impairments in the domains of processing speed and executive function. After 40 days of intensive inpatient rehabilitation, he was discharged home with independent function. This report highlights the need for an increased awareness of covert subclinical neurocognitive sequelae, the role of comprehensive rehabilitation, and value of routine cognitive screening therein and describes the neurocognitive features in severe COVID-19.

There are many linear direct driving actuators. As these don't need convert mechanism which converts rotating motion to linear motion, these type actuators would realize simple structure and fast driving. One of direct drive actuators, linear DC motor is applied to drive X-Y stage. Therefore, structure is simplified and fast and precise control of position are realized.The X-Y stage drived by linear DC motors is developed for a microscope. The X-Y stage is drived by two dimensions direct drive linear DC motor, is supported by piano wire spring, has built-in type position detector which is two dimension flat type linear variable differential transformer within actuator and controller which is controlled by micro processor. As a rsult, the X-Y stage that is simple and compact structure is controled within an error of 10μm in the required range from -1.2mm to 1.2mm by PID control.

Purpose Despite rapid advancements in AI and large language models (LLMs), there remains a critical gap in understanding how AI agents function as service actors and how they influence service processes and outcomes. This study addresses this gap by integrating AI agency and service experience dimensions, categorizing AI capabilities across six levels, from passive automation to fully conscious AI, and examining their impact on service workflows, human and multi-agent collaboration, and decision-making. Design/methodology/approach This research adopts a conceptual approach, drawing from literature on service experience and AI agency. It illustrates real-world applications of AI agents in service settings and outlines a future research agenda to explore the strategic and ethical implications of AI-driven service ecosystems. Findings AI agents transform service experiences by shaping action, collaboration, processes, outcomes, and learning. Automaticity AI enhances process efficiency through task automation but lacks adaptability, while Relational AI improves personalization in customer and employee engagement. Cognitive AI enables data-driven decision-making, whereas Autonomous AI optimizes workflows without human oversight. Innovator AI drives service transformation, generating novel solutions such as AI-driven drug discovery, while Conscious Organizational AI raises governance and ethical concerns for strategic decision makers. Originality/value This study advances AI agency theory in service experience, offering a structured framework to guide AI agent integration and its impact on context, process, collaboration, action, outcome and learning.

A linear motor is controlled by feedback control. The characteristic of the linear motoris determined by the characteristic of the motor itself, a position detector and a controlsystem. So the position detector is needed fine positioning and fast response.This paper states new type position detector which is able to built in the moving magnet type (MM-type) linear DC motor (LDM). As the MM-type LDM has merit that it needs no wire fordrive to move, this position detector is developed for making the best use of this merit. This position detector uses the capacitance between the mover and electrode which is installed on the stator. The capacitance changes in proportion to the displacement of themover. It is important to convert accurately the change of capacitance depending on displacement of the mover into direct voltage. After several electric circuits are examined, as the result, the best circuit is chosen, and then the simple, non-contact, cheap and accu-rate differential type position detector is developed.

Abstract This article investigates the impact of rail service interruptions on customer switching. Using booking data on intercity bus services, we exploit regional variation in rail service cancellations during a strike to show that the disruption in rail transport increases bus ticket sales. The effect persists beyond the strike, indicating that travellers do not return to their originally preferred transport mode. It is particularly pronounced on shorter routes and among leisure passengers travelling on weekends. The findings indicate that customers were previously under-experimenting. Our results imply that incentivising experimentation can foster competition, facilitate transformative change and raise welfare.

In order to apply the electro-magnetic radar method as an inspection method for cover depth, this study proposed a method to set relative permittivity.

It is important to measure the growth of plant for analyzing the physiological phenomenon of plant. As the growth of plant is usually measured by the sensor that touches on plant, it is influenced by touching pressure. Especially, there is no literature about measuring a little young plant just after germination.

Laguerre–Gaussian (LG) modes carry an orbital angular momentum (OAM, characterized by an index ℓ). Also, circularly polarized light possesses spin angular momentum (SAM, characterized by an index s = ±1). Optical vortex lattices are formed of the coherent superposition of two LG modes with different OAM indices. In particular, circularly polarized optical vortex lattices exhibit unique wavefront and polarization structures (multiple vortices structures) via spin–orbit angular momentum couplings, thereby yielding exotic light–matter interactions. In fact, vortex lattices have been observed in condensed matters, including super-fluids and superconductors, and they have been intensely studied to understand fundamental phenomena. However, there are few reports detailing optical vortex lattices induced light–matter interaction.