Parallel Processes of Posttraumatic Stress and Metabolic Dysfunction: Long-Term Costs of Trauma on the Psychological and Physical Health of 9/11 Survivors

Metabolic conditions (MetC) have been associated with posttraumatic stress disorder (PTSD) symptoms and may be critical indicators of the systemic physical sequelae of traumatic stress. Parallel process latent growth modeling wasapplied to longitudinal data collected from 35,788 9/11 survivors and used to model PTSD symptoms and MetC to determine how the development and course of one affect the other. A unidirectional relationship was found in which the intercept of PTSD symptoms predicted the slope of MetC. Hyperarousal (ß=.172) and emotional numbing (ß=.171) PTSD symptoms demonstrated the strongest association with the growth of MetC over and above the effects of general psychological distress, smoking history, and alcohol use when equally considering age, sex, race/ethnicity, pre-existing potentially traumatic events and physical health problems. Females and participants of color, particularly Asian participants and participants identified as American Indian, Alaskan Native, multiracial, or “other” demonstrated the strongest association between PTSD symptoms and MetC. Post-hoc analyses indicated utilization of PTSD-related psychotherapy was associated with decreased growth of MetC, suggesting a potential mitigating effect on the development and course of MetC following psychological trauma. Findings have strong implications for the evaluation and integrated treatment of a diverse range of individuals exposed to trauma and may help improve healthcare equity

Effect of Partial Substitution of Ni by Co on the Magnetic and Magnetocaloric Properties of Ni\u3csub\u3e50\u3c/sub\u3eMn\u3csub\u3e35\u3c/sub\u3eIn\u3csub\u3e15\u3c/sub\u3e Heusler Alloy

The magnetic and magnetocaloric properties of Ni48Co2Mn35In15 were studied using magnetization and heat capacity measurements. The magnetic entropy change (Delta SM) was evaluated from both magnetizing and demagnetizing fields. An inverse Delta SM for the magnetizing and demagnetizing processes were found to be 20.5 and 18.5 J kg-1 K-1, respectively, for Delta H = 5 T at the martensitic transition (T=TM). The normal Delta SM was found to be -5.4 J kg-1 K-1 for both fields at the paramagnetic/ferromagnetic transition (T=TC). The effective refrigeration capacity at TM and TC for magnetizing field was found to be 268 and 243 J/kg (285 and 243 J/kg for the demagnetizing field), respectively. We have also estimated the density of states, the Debye temperature, and the inverse adiabatic temperature change to be 4.93 states/eV f.u., 314 K, and -3.7 K, respectively, from the measured heat capacity data

Effect of partial substitution of Ni by Co on the magnetic and magnetocaloric properties of Ni50Mn35In15 Heusler alloy

The magnetic and magnetocaloric properties of Ni48Co 2Mn35In15 were studied using magnetization and heat capacity measurements. The magnetic entropy change (δSM) was evaluated from both magnetizing and demagnetizing fields. An inverse S M for the magnetizing and demagnetizing processes were found to be 20.5 and 18.5 J kg-1 K-1, respectively, for δH 5 T at the martensitic transition (T TM). The normal SM was found to be -5.4 J kg-1 K-1 for both fields at the paramagnetic/ferromagnetic transition (T = TC). The effective refrigeration capacity at TM and TC for magnetizing field was found to be 268 and 243 J/kg (285 and 243 J/kg for the demagnetizing field), respectively. We have also estimated the density of states, the Debye temperature, and the inverse adiabatic temperature change to be 4.93 states/eV f.u., 314 K, and -3.7 K, respectively, from the measured heat capacity data. © 2011 American Institute of Physics

Mn1-xFexCoGe: A strongly correlated metal in the proximity of a noncollinear ferromagnetic state

An unusually large Kadowaki-Woods ratio of A/γ2 ∼ 43 μΩ·cm·mol2·K2·J -2 has been observed for intermetallic Mn1-xFe xCoGe compounds in the proximity of x = 0.2 where the magnetic state of itinerant electrons system changes. The ratio is approximately four times larger than observed for heavy fermion systems. The manifestation of the strong electron correlations can be realized from the anisotropic origin of the effect through the substantial reduction of interlayer transport of heavy quasiparticles with comparable mean-free path and interlayer spacing in the proximity of a noncollinear ferromagnetic state associated with a large density of states at the Fermi level. © 2013 AIP Publishing LLC

Mn\u3csub\u3e1-x\u3c/sub\u3eFe\u3csub\u3ex\u3c/sub\u3eCoGe: A Strongly Correlated Metal in the Proximity of a Noncollinear Ferromagnetic State

An unusually large Kadowaki-Woods ratio of A/gamma2 similar to 43 mu Omega.cm.mol2.K2.J-2 has been observed for intermetallic Mn1-xFexCoGe compounds in the proximity of x = 0.2 where the magnetic state of itinerant electrons system changes. The ratio is approximately four times larger than observed for heavy fermion systems. The manifestation of the strong electron correlations can be realized from the anisotropic origin of the effect through the substantial reduction of interlayer transport of heavy quasiparticles with comparable mean-free path and interlayer spacing in the proximity of a noncollinear ferromagnetic state associated with a large density of states at the Fermi level

The influence of hydrostatic pressure on the magnetic and magnetocaloric properties of DyRu2Si2

We report the magnetic and magnetocaloric properties of the tetragonal rare-earth compound DyRu2Si2 under applied hydrostatic pressure. The isothermal entropy change (ΔS) and the adiabatic temperature change (ΔTad) were calculated from magnetization data collected at different applied pressures and from heat capacity measurements conducted at atmospheric pressure, respectively. The application of hydrostatic pressure significantly modified the multi-step magnetization curve and the saturation magnetization. A suppression of the magnetization was observed for P = 0.588 GPa and P = 0.654 GPa whereas, at about P ≈1 GPa, the saturation magnetization increased and the magnetization isotherms again resembled the curves measured at atmospheric pressure. A small thermal hysteresis was observed between the heating and cooling M(T) curves at Tt=3.4 K, with an applied magnetic field of H = 0.1 T. This thermal hysteresis indicates a first-order like transition which was also supported by the Arrott plot analysis. The volume magnetostriction was estimated from the pressure-dependent magnetization measurements using a Maxwell relation

The Comparison of Direct and Indirect Methods for Determining the Magnetocaloric Parameters in the Heusler Alloy Ni50Mn34.8In14.2B

The magnetocaloric properties of the Ni50Mn34.8In14.2B Heusler alloy have been studied by direct measurements of the adiabatic temperature change (ΔTAD(T,H)) and indirectly by magnetization (M(T,H)), differential scanning calorimetry, and specific heat (C(T,H)) measurements. The presence of a first-order ferromagnetic-paramagnetic transition has been detected for Ni50Mn34.8In14.2B at 320 K. The magnetocaloric parameters, i.e., the magnetic entropy change (ΔSM = (2.9-3.2) J/kgK) and the adiabatic temperature change (ΔTAD = (1.3-1.52) K), have been evaluated for ΔH = 1.8 T from CP(T,H) and M(T,H) data and from direct ΔTAD(T,H) measurements. The extracted magnetocaloric parameters are comparable to those of Gd