objective: the aim of this study was to determine the oxidative stress; serum level of total antioxidant capacity (tac)and malondialdehyde (mda) level and the depression score among the depressed rotational shift workers in shahid tondgouyan refinery in tehran (iran). methods: a cross-sectional study was conducted among all the 189 shift workers in shahid tondgouyan oil refinery who were eligib...

abstract having no exact knowledge of most appropriate harvesting time in kiwifruit grown in different regions of guilan province, as well as the low storage longevity of the fruits are the most important factors causing considerable reduction in both marketability and export affairs. in this study, the influence of fruit quality in term of harvesting time on the postharvest quality and food va...

Prompt recovery after intense activity is an essential feature of most mammalian synapses. Here we show that synapses with reduced expression of the presynaptic gene munc18-1 suffer from increased depression during intense stimulation at glutamatergic, GABAergic, and neuromuscular synapses. Conversely, munc18-1 overexpression makes these synapses recover faster. Concomitant changes in the readi...

although the increase in the number of core sutures during flexor tendon repair increases the tensile strength of the repair, both increased handling at the time of repair and increased bulk at the repair site have been hypothesized as affecting clinical outcomes by increasing gliding resistance. the purpose of our study was to assess whether increasing the number of core sutures from two stran...

BACKGROUND AND OBJECTIVES This study was undertaken to provide denominator data relating to the timing and location of transfusion, to support interpretation of reports of incorrect blood component transfused (IBCT) events to the UK Serious Hazards of Transfusion (SHOT) scheme. MATERIALS AND METHODS The study was carried out in 29 hospitals in northern England. Data on the timing, location an...

Human episodic memory provides a seemingly unlimited storage for everyday experiences, and a retrieval system that allows us to access the experiences with partial activation of their components. This paper presents a computational model of episodic memory inspired by Damasio's idea of Convergence Zones. The model consists of a layer of perceptual feature maps and a binding layer. A perceptual ...

The present study deals with the isolation and partial purification of bioactive compounds from the crude methanol extracts of the leaves of Ageratum houstonianum (Asteraceae). The quantification and the identification of compounds in the crude extract and active bands isolated by preparative TLC were accomplished using GC-MS analysis. The most important compounds identified in the crude extrac...

Emotional arousal during relationship conflict is a major target for intervention in couple therapies. The current study examines changes in conflict-related emotional arousal in 104 couples that participated in a randomized clinical trial of two behaviorally-based couple therapies. Emotional arousal is measured using mean fundamental frequency of spouse's speech, and changes in emotional arous...

The active zone is a specialized region of the presynaptic plasma membrane where synaptic vesicles dock and fuse. In this study, we have investigated the cellular mechanism underlying the transport and recruitment of the active zone protein Piccolo into nascent synapses. Our results show that Piccolo is transported to nascent synapses on an approximately 80 nm dense core granulated vesicle toge...

Serum concentrations of T4, T3, rT3, and TSH were measured by radioimmunoassay in 45 patients suffering from beta-thalassaemia. A TRH stimulation test was performed and the binding capacity of TBG and TBPA for T3 and T4 measured by reverse flow zone electrophoresis in a group of these patients. Mean T4 serum concentration was lower in thalassaemic patients than controls; T3, rT3, TSH levels, an...