We analyze the response of molecular adhesion complexes to increasing pulling forces (dynamic force spectroscopy) when dissociation can occur along either one of two alternative trajectories in the underlying multidimensional energy landscape. A great diversity of behaviors (e.g., nonmonotonicity) is found for the unbinding force and time as a function of the rate at which the pulling force is ...

Fragmentation of molecules under collision-induced dissociation (CID) conditions is not well-understood. This may make interpretation of MSMS spectra difficult and limit the effectiveness of software tools intended to aid mass spectral interpretation. Density Functional Theory (DFT) has been successfully applied to explain the thermodynamics of fragmentation in the gas phase by the modelling th...

BACKGROUND We conducted a 1-year follow-up of an original mail survey of early reactions to the World Trade Center disaster. METHOD Of the 75 subjects originally surveyed, 58 (77%) responded. The survey included measures of dissociation (Dissociative Experiences Scale, Cambridge Depersonalization Scale, Clinician-Administered Dissociative States Scale), post-traumatic stress (Impact of Event ...

Judith Herman (1992) famously observed, “The knowledge of horrible events periodically intrudes into public awareness but is rarely retained for long. Denial, repression, and dissociation operate on a social as well as an individual level” (p. 2). The truth of Herman’s observation makes editing the Journal of Trauma & Dissociation (JTD) all that more sweet–for in creating this journal we are ta...

objective: many psychodynamic oriented psychotherapists believe that people do not become addicted without a reason they use drugs to avoid painful feelings, thoughts and memories. the present study examines the relationship between the level of dissociation, substance dependence disorder and other psychiatric disorder. methods: in a descriptive study on prisoners of adel-abad prison, shiraz, i...

The purpose of this study was to determine the acid dissociation constants (pKa) of meloxicam in the presence of various surfactants including sodium lauryl sulfate (SLS) as an anionic surfactant, cetyltrimethylammonium bromide (CTAB) as a cationic surfactant and Triton® TX-100 (TX-100) as a non-ionic surfactant in different pre-determined concentrations. The related pKa was determined spec...

In this study, the theoretical calculations of CO dissociation were carried out on Cu-Fe alloy surface by a full-potential method, which made more accurate results especially on the prediction of adsorption energies. This process may be governed by either a direct route or a H-assisted via HCO and COH intermediates pathways. In comparison to the pure surface Fe (100), the presence of Cu atom en...

Controlling the dissociation of single water molecule on an insulating surface plays a crucial role in many catalytic reactions. In this work, we have identified the enhanced chemical reactivity of ultrathin MgO(100) films deposited on Mo(100) substrate that causes water dissociation. We reveal that the ability to split water on insulating surface closely depends on the lattice mismatch between...

The dynamics of fast gas heating in a high power microwave discharge in air, is investigated in the framework of FDTD simulations of the Maxwell equations coupled with the fluid simulations of the plasma. It is shown that, an ultra-fast gas heating of the order of several 100 Kelvins occurs in less than 100 ns. The main role in the heating is played by the electron impact dissociation of , diss...

The aim of this study was to systematically examine the impact of shame, guilt, and dissociation on interpersonal relationships. Study 1 assessed 81 participants attending a trauma-related treatment service with the Structured Interview for Disorders of Extreme Stress and the Community and Interpersonal Connectedness Scale. Study 2 assessed 21 traumatized participants from the same service with...