Noninvasive blood pressure pumps are recommended as the primary form of acquiring patient blood pressure to test for blood poisoning. The Philips IntelliVue Patient Monitor MP5, the Philips SureSigns VS4/VS3 Vital Signs Monitor, the Philips EarlyVue VS30 Vital Signs Monitor, the Philips IntelliVue Patent Monitor MP2/X2, the Philips IntelliVue Patent Monitor MMS, and the Philips IntelliVue Patent Monitor MP3/X3 were tested for accuracy. The control condition for hypotension was 95/55 (68) mmHg, normal blood pressure was 120/80 (93) mmHg, and hypertension was 155/85 (108) mmHg. The order of values is arrayed according to diastolic, systolic, and mean arterial pressure. The results displayed no observable difference between error or uncertainty. The average relative uncertainty values were identical for calibrated and uncalibrated devices. These values included 0.32%, 0.38%, and 0.51% for hypotension, normal blood pressure, and hypertension respectively. This result is significantly smaller than the blood pressure values. Also, devices with the greatest deviation in variance were the Philips IntelliVue Patient Monitor MP5 and X2, which exhibited the maximum standard deviation in seven out of the nine cases. The device with the smallest deviation in variance was the Philips IntelliVue Patient Monitor VS3/4 with a minimum variance of zero. Further experimentation is encouraged to collect a larger sample size to complete hypothesis testing and compare it to the industrial quality control of Philips.
Murine vertebral compression testing is a common technique to quantify trabecular bone biomechanics. Having a precise method of vertebral compression is important for aiding researchers in making clinically relevant discoveries in musculoskeletal research. While many methods exist in literature, there has yet to be established a universal protocol for this procedure. Many challenges exist in vertebral compression, such as the irregular shape of the vertebral body (trabecular region of interest), uneven endplate surface morphology, and surrounding cortical processes. Therefore, the aim of this study was to develop a new method of vertebral compression that accounts for these factors and to validate this procedure using vertebrae from a prior disease/treatment study that produced groups with significant differences in bone properties. A murine diabetic nephropathy model was induced through a combination of streptozotocin injections (STZ) and adenine-laced casein diets (Ad). The first group (STZ-Ad) received 100 μL subcutaneous vehicle injections (phosphorus buffered saline, PBS) per day, and the second group (Romo) received the same PBS injections and Romososumab (10 mg/kg) weekly. At 24 weeks of treatment, mice were euthanized. L5 vertebrae were isolated and specialized endcaps were developed from epoxy to form-fit caudal and cranial vertebral endplates, accounting for surface topography and preserving the original structure of the vertebrae. Vertebrae were preloaded to 0.5 N and compressed to failure at a rate of 0.025 mm/s with maximum displacement of 4 mm. Ultimate force and ultimate displacement were recorded. Post-compressed vertebrae were scanned using microcomputed tomography (μCT), reconstructed (NRecon), rotated (Data Viewer), and visualized for fracture damage (Drishti). A significant difference was detected between groups for ultimate force (p = 0.0012); no significant difference was found for ultimate displacement. These results indicate that this novel method of vertebral compression can accurately identify significant differences in trabecular biomechanics, aiding in musculoskeletal research.
Loop-mediated isothermal amplification (LAMP) is a nucleic acid amplification technique known for its specificity and efficiency in less controlled environments than laboratories. Designing novel LAMP reagents requires strict contamination control, and unlike the more commonly automated polymerase chain reaction, LAMP’s heightened sensitivity poses unique challenges to automation. To address this, we optimized automation procedures for LAMP using a robotic pipettor without altering the core assay itself. This project focuses on minimizing contamination using sealed plates, reducing operator intervention by automating pipetting, and preventing enzyme degradation using cooling plates. Our approach employs pre-slit pierceable seals and cooling blocks to prevent cross-contamination between wells and maintain primer integrity, enhancing the system’s scalability for large sample sizes. The implementation of this automated workflow resulted in an 81.6% reduction in processing time, reducing LAMP assay duration from 1 hour for 16 reactions in a 96-well plate to just 15 minutes. Comparative analysis between manual and automated runs shows no significant difference in reaction profiles, and initial evaluations indicate acceptable levels of cross-contamination. By extending this automation workflow, we aim to create a fully autonomous 24-hour LAMP screening system by integrating a nucleic acid synthesizer for on-demand primer production. Furthermore, this system will interface with AI-based experimental design models, enabling autonomous optimization of LAMP reagent design and assay development. By eliminating manual intervention, the diagnostic process is streamlined, accelerating assay development and enhancing response capabilities for emerging pathogens. This marks a significant advancement in biomolecular diagnostics, with potential for continuous innovation to address evolving public health needs.
This study explores the impact of child access prevention (CAP) laws on firearm-related deaths in the United States, analyzing the relationship between CAP laws and the corresponding firearm death rates by state. To evaluate the strength of each state’s CAP laws, each state was given a number from 0 (no law) to 3 (strongest protection). Firearm death rates were recorded as “n per 100,000” population. We performed a linear regression analysis that found a significant association between the strongest and moderate CAP laws and firearm deaths (strong = 3) -β = -14.0, p < .01; (moderate = 2) -( β = -7.4, p < .001) respectively. There was no significant difference between states with minimal protections (weak = 1) and those without CAP laws (none = 0). These results highlight that simply having a CAP law is insufficient; the strength of the law is a critical factor. This is further supported by the model, which showed that 43% of the variation in firearm deaths was directly linked to the strength of CAP laws. However, challenges such as gaps in enforcement, public awareness, and inconsistent legislation remain barriers. This paper proposes three key policy actions: (1) standardizing CAP laws nationwide, (2) requiring mandatory safe storage education for all firearm owners, and (3) expanding federal background checks to address purchase loopholes. Strengthening these areas would be a huge step toward reducing gun violence in the United States, particularly among youth.
Dr. Katie Jarriel is a Clinical Associate Professor in the John Martinson Honors College, as well as the director of the Computing for Community Collaboratory (C3) Research Generator. Her research combines archaeology and computer modeling to better understand the histories of human– environment interaction. Project oCEANIC (Computing Environmental Adaptation and Navigation in Island Communities) applies these methodologies to a study of traditional maritime navigation in Oceania. Undergraduate student researcher Allyson Dinwiddie, who has contributed to this research, is interviewed along with Jarriel.
