A high selective ion-imprinted polymer grafted on a novel nanoporous material for efficient gold extraction.

In this work, for the first time, an ion-imprinted polymer was developed for selective extraction and determination of gold ions. To increase the sorbent efficiency, this polymer was coated on a novel nanoporous carbon-based material, carbohydrate-derived Max-Planck Gesellschaft 1, which is also the first example of grafting imprinted polymer on nanoporous-carbon material. These particles were applied successfully for preconcentration of ultratrace amount of gold ions, following determination by flame atomic absorption spectrometry.

Quality of life and the related factors in spouses of veterans with chronic spinal cord injury.

Background: The quality of life (QOL) of caregivers of individuals with chronic spinal cord injuries may be affected by several factors. Moreover, this issue is yet to be documented fully in the literature. The purpose of this study was to evaluate the health related quality of life of spouses who act as primary caregivers of veterans with chronic spinal cord injuries in Iran.

Validation and cross-cultural adaptation of the Persian version of Craig Handicap Assessment and Reporting Technique (CHART) short form.

Objective: To test the psychometric specifications of the Persian version of the Craig Handicap Assessment and Reporting Technique (CHART) short form in an Iranian population.

Design: Cross-sectional study.

Subjects: Fifty-two individuals with a mean age of 49.

Anti-inflammatory and analgesic effects of egg yolk: a comparison between organic and machine made.

Objectives: Yolk composition may be influenced by the bird's dietary intake. Quality of egg yolk from different sources is also varied. Especially egg yolk from organic sources, those prepared by the hen and duck were naturally fed.

Determination of haloperidol in biological samples with the aid of ultrasound-assisted emulsification microextraction followed by HPLC-DAD.

A rapid and simple quantitative method for preconcentration and determination of haloperidol in biological samples was developed using ultrasound-assisted emulsification microextraction, based on the solidification of floating organic droplet combined with HPLC-DAD. The effects of several factors were investigated. A total of 30 μL of 1-undecanol as an extraction solvent was injected slowly into a glass-centrifuge tube containing 4 mL alkaline sample solution that was located inside the ultrasonic water bath.

Molecularly imprinted nano particles combined with miniaturized homogenous liquid-liquid extraction for the selective extraction of loratadine in plasma and urine samples followed by high performance liquid chromatography-photo diode array detection.

In this work a molecularly imprinted polymer was developed as a selective sorbent for extraction of loratadine (as a model) in complex matrices followed by miniaturized homogeneous liquid-liquid extraction (MHLLE) for the first time. The molecularly imprinted polymer (MIP) which is based on loratadine as the template was synthesized successfully by precipitation polymerization and was used as a selective sorbent. This technique was applied for preconcentration, sample preparation, and determination of loratadine using high performance liquid chromatography-photo diode array detection (HPLC-PDA).

Comparative interrater reliability of Asian Stroke Disability Scale, modified Rankin Scale and Barthel Index in patients with brain infarction.

Background: This study tried to develop an Asian Stroke Disability Scale (ASDS) and compared its interrater reliability with modified Rankin Scale (mRS) and Barthel Index (BI).

Methods: Three items including self-care, mobility, and daily activities were selected as variables for development of the ASDS. The variables were provisionally graded on a 2- to 4-point scale based on the importance of each item.

Surgical technique: Spike translation: a new modification in step-cut osteotomy for cubitus varus deformity.

Background: Various methods of osteotomy have been proposed for the treatment of cubitus varus. We designed a modification of the step-cut osteotomy to achieve more correction of the deformity. We describe this new technique called spike translation step-cut osteotomy and report the clinical and radiographic outcomes (deformity correction, ROM, function, osteotomy healing, complications) in a series of patients treated for cubitus varus using this technique.

Determination of the causes of tendency toward red meat and meat products in the west of Iran.

Background: Although meat constitutes an important part of many consumers' diet, its consumption has become a quiet controversial issue. Several factors are effective on tendency to red meat consumption. The 2007's report of the world Cancer Research Fund makes the recommendation to limit the consumption of red meat to less than 500 g per week.

Power instability of singly resonant optical parametric oscillators: theory and experiment.

We present a theoretical model on the effects of mechanical perturbations on the output power instability of singly-resonant optical parametric oscillators (SR-OPOs). Numerical simulations are performed based on real experimental parameters associated with a SR-OPO designed in our laboratory, which uses periodically-poled LiNbO3 (PPLN) as the nonlinear crystal, where the results of the theoretical model are compared with the measurements. The out-coupled power instability is simulated for a wide range of input pump powers the SR-OPO oscillation threshold.

High-power, continuous-wave, single-frequency, all-periodically-poled, near-infrared source.

We report a high-power, single-frequency, continuous-wave (cw) source tunable across 775-807 nm in the near-infrared, based on internal second harmonic generation (SHG) of a cw singly-resonant optical parametric oscillator (OPO) pumped by a Yb-fiber laser. The compact, all-periodically-poled source employs a 48-mm-long, multigrating MgO doped periodically poled lithium niobate (MgO:PPLN) crystal for the OPO and a 30-mm-long, fan-out grating MgO-doped stoichiometric periodically poled lithium tantalate (MgO:sPPLT) crystal for intracavity SHG, providing as much as 3.7 W of near-infrared power at 793 nm, together with 4 W of idler power at 3232 nm, at an overall extraction efficiency of 28%.

Transient and permanent hypoparathyroidism following thyroidectomy.

Aim: This study was designed to identify the risk factors of transient and permanent hypoparathyroidism in patients undergoing thyroidectomy. We also studied the duration of transient hypoparathyroidism following thyroid surgery.

Methods: A prospective study was conducted on 163 consecutive patients undergoing thyroidectomy.

Effects of adenosine A2a receptor agonist and antagonist on hippocampal nuclear factor-kB expression preceded by MDMA toxicity.

There is an abundance of evidence showing that repeated use of 3,4-methlylenedioxymethamphetamine (MDMA; ecstasy) is associated with brain dysfunction, memory disturbance, locomotor hyperactivity, and hyperthermia. MDMA is toxic to both the serotonergic neurons and dopaminergic system. Adenosine is an endogenous purine nucleoside with a neuromodulatory function in the central nervous system.

Pyridine-2,6-diamine-functionalized Fe₃O₄ nanoparticles as a novel sorbent for determination of lead and cadmium ions in cosmetic samples.

A novel sorbent based on pyridine-2,6-diamine-functionalized Fe(3)O(4) nanoparticles was developed and characterized by X-ray powder diffraction (XRD), elemental analysis, IR spectroscopy and scanning electron microscopy (SEM). The application of the sorbent was investigated for pre-concentration and determination of lead and cadmium ions in aqueous samples. Effects of various factors such as the sample pH, eluent parameters (type, concentration and volume) and time (adsorption and desorption) were appraised.

Assessment of ABCD² scale in patients with transient ischaemic attack or stroke.

Background And Purpose: Stroke risk prediction scores have been designed to stratify risk of recurrent cerebrovascular events in patients with transient ischaemic attack (TIA) or minor ischaemic stroke (MIS).

Material And Methods: Consecutive patients with TIA or MIS referring to Ghaem Hospital, Mashhad presenting within 24 hours from the onset of symptoms were recruited to the prospective cohort study between 2010 and 2011. MIS was defined as an ischaemic stroke with National Institutes of Health Stroke Scale (NIHSS) score < 4.

Cloning, and Molecular Characterization of Polymorphic Iranian Isolate Theileria annulata Surface Protein (Tasp).

Background: Because of the strong immunologic responses of surface protein TaSp in Theileria annulata infected host, we tried to characterize this protein in a T. annulata isolate from Iran.

Methods: The RNA prepared from T.

Mode-locked, continuous-wave, singly resonant optical parametric oscillator.

We report an actively mode-locked continuous-wave (cw) optical parametric oscillator in singly resonant oscillator (SRO) configuration, generating stable 230 ps pulses at 80 MHz repetition rate. The idler-resonant cw SRO, configured in standing-wave cavity, is based on MgO:sPPLT as the nonlinear gain material and pumped at 532 nm. Mode-locking is achieved by direct deployment of an intracavity phase modulator close to one of the SRO cavity end mirrors.

Antiresonant ring output-coupled continuous-wave optical parametric oscillator.

We demonstrate the successful deployment of an antiresonant ring (ARR) interferometer for the attainment of optimum output coupling in a continuous-wave (cw) optical parametric oscillator (OPO). The cw OPO, configured as a singly-resonant oscillator (SRO), is based on a 50-mm-long MgO:PPLN crystal and pumped by cw Ytterbium-fiber laser at 1064 nm, with the ARR interferometer integrated into one arm of the standing-wave cavity. By fine adjustment of the ARR transmission, a continuously variable signal output coupling from 0.

Synthesis and characterization of magnetic metal-organic framework (MOF) as a novel sorbent, and its optimization by experimental design methodology for determination of palladium in environmental samples.

This paper describes the synthesis and application of novel magnetic metal-organic framework (MOF) [(Fe(3)O(4)-Pyridine)/Cu(3)(BTC)(2)] for preconcentration of Pd(II) and its determination by flame atomic absorption spectrometry (FAAS). A Box-Behnken design was used to find the optimum conditions for the preconcentration procedure through response surface methodology. Three variables including amount of magnetic MOF, extraction time, and pH of extraction were selected as factors for adsorption step, and in desorption step, four parameters including type, volume, and concentration of eluent, and desorption time were selected in the optimization study.

Antioxidant and antihemolytic activities of flavonoid rich fractions of Artemisia tschernieviana Besser.

Objectives: Artemisia (Asteraceae) contains more than 400 species. Many of the plants belonging to this genus are known to possess biological properties. In this study, antioxidant and antihemolytic activities of flavonoid rich fractions of A.

Hepatoprotective activity of Allium paradoxum.

Objective: Recent studies show that free radicals are important mediators of hepatic injury induced by carbon tetrachloride. Allium (A.) paradoxum showed antioxidant and antihemolytic activities.

Antioxidant, antihemolytic and nephroprotective activity of aqueous extract of Diospyros lotus seeds.

This study was conducted to quantitatively evaluate the antioxidant, antihemolytic and nephroprotective effects of Diospyros lotus seeds extract in experimental in vitro and in vivo models. Antioxidant potential of Diospvyos lotus seeds extract was examined by employing seven in vito models i.e.