INTRODUCTION Disturbances of circadian rhythms are a key symptom of mood and anxiety disorders. Selective serotonin reuptake inhibitors (SSRIs) - commonly used antidepressant drugs - also modulate aspects of circadian rhythmicity. However, their potential to restore circadian disturbances in depression remains to be investigated. MATERIALS AND METHODS The effects of the SSRI fluoxetine on gen...

BACKGROUND Musculoskeletal disorders (MSDs) are known to cause occupational injuries. This study aimed to collate the existed relevant data and develop a general feature of MSDs problem among Iranian workforce. METHODS In this study, we used the raw data related to 8004 employees from 20 Iranian industrial settings distributed throughout the country. In all studies, participants were selected...

OBJECTIVE Office-work poses a high-risk for musculoskeletal disorders (MSDs), with consequences for workers, employers and society. The aims of this study were to determine the prevalence of musculoskeletal symptoms in a sample of Iranian office workers, to investigate the association between pain severity and job satisfaction and to investigate the association between MSDs and job satisfaction...

INTRODUCTION Dysregulation of circadian rhythms is a key symptom of mood disorders, including anxiety disorders and depression. Whether the circadian abnormalities observed in depressed patients are cause or consequence of the disease remains elusive. Here we aimed to explore potential disturbances of circadian rhythms in a validated genetic animal model of high trait anxiety and co-morbid depr...

In humans and numerous other mammalian species, individuals considerably vary in their level of trait anxiety. This well known phenomenon is closely related to the etiology of several psychiatric disorders, but its neurophysiological basis remains poorly understood. Here, we applied voltage-sensitive dye imaging to brain slices from animals of the high (HAB), normal (NAB), and low (LAB) trait a...

Neuropeptide S (NPS) exerts robust anxiolytic and memory enhancing effects, but only in a non-social context. In order to study whether NPS affects aggressive behavior we used Wistar rats bred for low (LAB) and high (HAB) levels of innate anxiety-related behavior, respectively, which were both described to display increased levels of aggression compared with Wistar rats not selectively bred for...

From 60 to 80 species of phytoplankton have been reported to be harmful; of thcsc, 90% are flagellates, notably dinoflagellates. The effects of turbulence on harmful algal bloom (HAB) taxa, their photoadaptive strategies, growth rate, and nutrient uptake aFlinity (K,) are considered. Flagellates, including HAB taxa, collectively have a lower nutrient uptake affinity than diatoms. Four major ada...

In a cosmological context, the electric and magnetic parts of the Weyl tensor, Eab and Hab, represent the locally free curvature – i.e. they are not pointwise determined by the matter fields. By performing a complete covariant decomposition of ∇cEab and ∇cHab, we show that the parts of the derivative of the curvature which are locally free (i.e. not pointwise determined by the matter via the Bi...

Now is a historic time in the field of harmful algal bloom (HAB) science. HAB problems are growing worldwide, and society's need for understanding these phenomena is more pressing than ever. Technological advances have expanded our capabilities for observing the ocean, providing unprecedented opportunities not only for the detection of blooms, but also for the physical, chemical, and biological...

OBJECTIVE The Wisconsin Test Card Sorting Test (WCST) is a neuropsychological test that has been suggested as a more specific test for frontal lobes dysfunctions. This study was designed to determine whether WCST is able to differentiate between Iranian psychiatric patients with cognitive disorders and normal subjects, and whether WCST scores are related to severity of symptoms in depressive an...