Obesity is a significant health challenge in America, with far-reaching consequences for life expectancy, chronic conditions, healthcare costs, and national security. The economic and social costs of ...obesity reached a staggering 1.4 trillion in 2018, and it affects military readiness and workforce productivity. The rise in obesity rates can be attributed to the availability of cheap, calorie-dense food and a lack of physical activity. Solving the obesity crisis requires a combination of personal responsibility and policy changes. Education plays a crucial role in promoting healthy eating and physical activity, while healthcare professionals should receive more nutrition training. Access to behavioral counseling and community-based programs is essential for obesity treatment. Transforming the food environment involves increasing the affordability and accessibility of nutritious foods, reducing unhealthy food availability, and implementing interventions in schools. Federal feeding programs should be reauthorized, and policymakers should consider incentives for healthy food choices. Successful examples of obesity reduction exist, but sustained efforts and bipartisan commitment are necessary to overcome this challenge.
: The intercondylar starting site for retrograde femoral nailing has been selected to avoid damage to the articular weight-bearing surface. This starting point assumes that implants will adapt to the ...femoral radius of curvature. Implant-femur radius mismatch may result in postoperative fracture angulations, translation, or increase in hoop stress.
: Twenty cadaveric femurs were analyzed. The posterior cruciate ligament (PCL) was preserved. Two different femoral nails were analyzed. After creating an osteotomy at the superior level of the lesser trochanter, a cannulated nail was inserted to the level of the articular surface of the distal femur. A pointed guide wire was advanced through the nail and driven through the articular surface of the distal femur. The exact location of the guide wire exiting the articular surface was anatomically and radiographically determined.
: The mean anterior distance of the wire to the PCL was 20.4 mm for the ACE nail and 13.9 mm for the Synthes Femoral Nail (SFN). A Student's t test showed a significant difference between the two implants (p = 0.0002). The mean medial distance of the guide wire exit compared with the PCL was 4.2 mm for the ACE and 4.1 mm for the SFN nail and showed no significant difference.
: The tested nails require a more anterior insertion site than what has been described to match the femur curvature. Of the two nail designs evaluated, the SFN was more compatible with the currently recommended starting point.
The present study reports the synthesis and physico-chemical characterization of Mn1−xZnxFe2O4 (x = 0.5, 0.4, 0.3, 0.2, 0.1) nanoparticles-based magnetic fluids with reference to magnetic fluid ...hyperthermia. The properties of these fluids are studied using XRD, FTIR, TGA, VSM and the induction heating equipment operated at 330 kHz. The heating response of the fluids is investigated within the safety limit of H·f (4.8 *108 A/m-s). The study is also extended to simulate it for the agarose gel phantom system. The power absorption by these samples in distilled water and in agarose gel is calculated to compare with the experimentally observed value. To the best of the author’s knowledge, no study of temperature sensitive magnetic fluid is reported on agarose gel, which simulates or phantom an in vivo condition. Results analysis show that the control of hyperthermia temperature is possible at lower fields and frequencies for the A91 sample with the smallest possible concentration, which can be acceptable for in vitro study.
•The synthesis and physico-chemical characterization of Mn1−xZnxFe2O4 nanoparticles (x = 0.5, to 0.1) based magnetic fluids is reported.•The heating response of the fluids is investigated within the safety limit of H·f (4.8 *108 A/m-s).•The power absorption by these samples are calculated to compare with the experimentally observed value.•To the best of author’s knowledge, study of temperature sensitive magnetic fluid in agarose gel is not reported yet.•Results show that the A91 sample controls hyperthermia temperature at lower field, frequency and lowest concentration.
The present study reports the synthesis and physico-chemical characterization of Mn1−xZnxFe2O4 (x = 0.5, 0.4, 0.3, 0.2, 0.1) nanoparticles-based magnetic fluids with reference to magnetic fluid ...hyperthermia. The properties of these fluids are studied using XRD, FTIR, TGA, VSM and the induction heating equipment operated at 330 kHz. The heating response of the fluids is investigated within the safety limit of H·f (4.8 *108 A/m-s). The study is also extended to simulate it for the agarose gel phantom system. The power absorption by these samples in distilled water and in agarose gel is calculated to compare with the experimentally observed value. To the best of the author's knowledge, no study of temperature sensitive magnetic fluid is reported on agarose gel, which simulates or phantom an in vivo condition. Results analysis show that the control of hyperthermia temperature is possible at lower fields and frequencies for the A91 sample with the smallest possible concentration, which can be acceptable for in vitro study.
