INTRODUCTION In reviewing a larger group of osteoporotic vertebral compression fractures (VCFs), we found that the overall incidence of sacral insufficiency fractures (SIFs) is higher than commonly reported values. This is especially seen in patients with previous or concurrent lumbar VCFs and also in a subgroup that had lumbar stenosis or hip arthroplasty. The altered biomechanics due to assoc...

Social scientists who dismiss evolutionary psychology seem unaware that a revolution in neuroscience and other areas of biology has taken place over the last half-century. The estimate of 83 million Americans taking drugs like Prozac for depression and 11 million children on Ritalin for hyperactivity indicate it is time to reconsider the role of brain chemistry in social behavior and violent be...

According to the Emotional Security Theory, feeling safe in family is a main goal for adolescents. Interparental conflict threatens adolescents’ emotional security but there are few studies that relate interparental conflict, security, and self-perceptions. Our aim was these dimensions. Participants were 196 adolescents of both sexes with mean age 15.24 years. The CPIC scale used measure percei...

BACKGROUND Supervised injection facilities (SIFs) are legally sanctioned environments for people to inject drugs under medical supervision. SIFs currently operate in ten countries, but to date, no SIF has been opened in the USA. In light of increasing overdose mortality in the USA, this study evaluated willingness to use a SIF among youth who report non-medical prescription opioid (NMPO) use. ...

This study presents an adaptive coupling peridynamic least-square minimization with the finite element method (PDLSM-FEM) for fracture analysis. The presented utilizes PDLSM modeling discontinuities while maximizing FEM region computational efficiency. Within PDLSM-FEM, only elements intersecting crack path and their neighboring are defined as PD elements, whose stiffness matrices derived based...

In this work, the mechanism for fracture of brittle substances such as rocks under a uniform normal tension is considered. The oriented straight micro-cracks are mostly created in all the polycrystalline materials resulting from the stress concentrations. The present work focuses on the interactions of the pre-existing micro-cracks, which can grow and propagate within a rock-like specimen. The ...

The study aimed to check the mediation role of cognitive emotional regulation for emotional safety and emotional problems such as stress, anxiety and depression. The sample of this study consisted of 240 high school students in Fasa, Fars (120 girls and 120 boys). The method of sampling was multistage cluster sampling. The mean age for the sample was 16.3 years old with SD=1.5. The scales that ...

Abstract: The solution to problem of an orthotropic long cylinder subjected to torsional loading is first obtained by means of separation valuables. The cylinder is twisted by two lateral shear tractions and the ends of the cylinder surface of the cylinder are stress-free. First, the domain under consideration is weakened by an axisymmetric rotational Somigliana ring dislocation. The dislocatio...

This study investigated the effect of fabric parameters on crack propagation in plain-woven e-glass reinforced epoxy composite plates. Through numerical analyses, contributes to understanding structure and adopting a more precise approach design materials. The yarn fiber volume fraction, shear angle, spacing were selected as variables for fabric, material properties determined each parameter us...