Preconcentration of bismuth using nickel hydroxide nanoflower from water samples and determination by FAAS.

In this study, a preconcentration strategy based on Ni(OH) nanoflowers (NFs) was developed for the extraction/separation of bismuth ions from environmental water samples before the determination by flame atomic absorption spectrometry (FAAS). The homogeneous coprecipitation method was employed for the synthesis of the flower-shaped Ni(OH) and used as an adsorbent for the preconcentration of bismuth. The extraction variables were determined by a univariate optimization strategy to obtain maximum extraction performance.

Ionic Liquid-Solidified Floating Organic Drop Microextraction for the Preconcentration of Lead in Environmental Water Samples Prior to Its Determination with Electrothermal Atomic Absorption Spectrometry.

This research investigates the utilization of an ionic liquid combination of solidified floating organic drop micro-extraction (IL-SFODME) to augment the concentration of trace amounts of lead, working as a preliminary stage before electrothermal atomic absorption spectrometry (ETAAS) analysis without the use of chelating agents. Key parameters impacting the microextraction efficiency-including pH, the volume of the ionic liquid (1-Hexyl-3-methylimidazolium hexafluorophosphate, HMIMPF6), temperature, extraction time, and stirring speed-were methodically examined to determine optimal conditions. Under detected optimized conditions, an enhancement factor of 71.

Staphylococcus aureus Bacteriophage 52 Endolysin Exhibits Anti-Biofilm and Broad Antibacterial Activity Against Gram-Positive Bacteria.

Bacteriophage endolysins have been shown to hold great promise as new antibacterial agents for animal and human health in food preservation. In the present study, endolysin from Staphylococcus aureus subsp. aureus ATCC 27692-B1 bacteriophage 52 (LysSA52) was cloned, expressed, and characterized for its antimicrobial properties.

Prevalence, comorbidities and mediators of childhood anxiety disorders in urban Turkey: a national representative epidemiological study.

Purpose: The aim of this study is to evaluate the prevalence of anxiety disorders, its correlation with sociodemographic characteristics, its comorbidities with other psychiatric disorders and its predictors in school-aged children.

Methods: This study is part of a representative, multi-centered national study that is planned by the Turkish Association of Child and Adolescent Mental Health to evaluate the prevalence of psychopathology among elementary school students in Turkey between the years 2014-2015. Children are screened via Kiddie Schedule for Affective Disorders and Schizophrenia for School Age Children Present and Lifetime Version.

Isolation and Characterization of Lytic Bacteriophages from Wastewater with Phage Therapy Potentials Against Gram-Negative Bacteria.

Objective: The increase of multidrug resistance in bacteria has increased the efforts in search of alternative methods. The aim of the present study was to isolate and characterize the lytic phages and assess their lytic activity against a number of gram-negative bacteria.

Materials And Methods: The phages and their respective hosts were isolated from wastewater collected from the municipal sewer system of Trabzon, Turkey.

Impact of Parental Impulsivity on Attention Deficit Hyperactivity Disorder and Oppositional Defiant Disorder: Do Mothers' Attitudes Predict Symptom Severity in Children?

Attention deficit hyperactivity disorder (ADHD) is a chronic neurodevelopmental disorder that occurs early in school-aged children, and it is highly comorbid with oppositional defiant disorder (ODD). Parents of children with ADHD frequently show mental problems related to impulsivity. The aim of this study was to examine the relationship between impulsivity of the mothers and the symptom patterns and severity of children.

Effect of Impairment on the Prevalence and Comorbidities of Attention Deficit Hyperactivity Disorder in a National Survey: Nation-Wide Prevalence and Comorbidities of ADHD.

Objective: This study aimed to determine the prevalence and comorbidities of attention-deficit hyperactivity disorder (ADHD) by evaluating a large-scale nation-wide sample of children.

Method: The inclusion criterion was being enrolled as a 2nd, 3rd, or 4th-grade student. A semi-structured diagnostic interview (K-SADS-PL), DSM-IV-Based Screening Scale for Disruptive Behavior Disorders, and assessment of impairment (by both parents and teachers) were applied to 5,842 participants.

Determination of prohibited lead and cadmium traces in hair dyes and henna samples using ultrasound assisted-deep eutectic solvent-based liquid phase microextraction followed by microsampling-flame atomic absorption spectrometry.

In this study ultrasound assisted-deep eutectic solvent-based liquid phase microextraction followed by microsampling-flame atomic absorption spectrometry was developed to determine prohibited lead and cadmium traces in hair dye and henna samples. For this purpose, deep eutectic solvent, prepared from choline chloride and phenol, was used as an extraction solvent, dithizone was used as a complexing agent, and THF was used as an aprotic solvent. All parameters that affect extraction efficiency, such as pH, the DES volume and composition, the extraction time, the amount of dithizone, were optimized.

Corneal endothelial changes in type 2 diabetes mellitus relative to diabetic retinopathy.

Background: To evaluate the morphological features of corneal endothelial cells and their relationship with the stage of retinopathy in diabetes mellitus (DM).

Methods: Patients with type 2 DM and age-matched controls were included in this prospective, cross-sectional study. Patients with diabetic retinopathy (DR) were divided into no-DR, non-proliferative DR and proliferative DR based on the fundus findings.

The association between genetic polymorphism of glutathione peroxidase 1 (rs1050450) and keratoconus in a Turkish population.

Purpose: To investigate the potential associations between keratoconus and catalase rs1001179, superoxide dismutase 2 rs4880, and glutathione peroxidase 1 rs1050450 gene polymorphisms in a Turkish population.

Methods: The study group included 121 unrelated keratoconus patients and 94 unrelated healthy controls. Blood samples (200 ml) were collected from all patients and controls to isolate genomic DNA.

The prevalence of childhood psychopathology in Turkey: a cross-sectional multicenter nationwide study (EPICPAT-T).

Aim: The aim of this study was to determine the prevalence of childhood psychopathologies in Turkey.

Method: A nation-wide, randomly selected, representative population of 5830 children (6-13 years-old) enrolled as a 2nd,3rd or 4th grade student in 30 cities were evaluated for presence of a psychiatric or mental disorder by a Sociodemographic Form, Kiddie Schedule for Affective Disorders and Schizophrenia for School Age Children-Present and Lifetime Version (K-SADS-PL), and DSM-IV-Based Screening Scale for Disruptive Behavior Disorders in Children and Adolescents scales. Impairment criterion was assessed via a 3 point-Likert scale by the parent and the teacher independently.

Evaluation of corneal and lens clarity in unilateral pseudoexfoliation syndrome: a densitometric analysis.

Background: Although ageing is the main reason for cataract progression, pseudoexfoliation syndrome (PES) represents an independent additional hazard for the development of nuclear sclerosis and cataract progression. PES can also affect corneal properties. From this perspective, this study aimed to perform a comparison of the corneal and lens densitometry measurements in eyes with PES and age-matched healthy eyes.

Anterior Segment Changes during Accommodation in Accommodative Esotropia.

Purpose: To evaluate the anterior segment biometric parameters of non-accommodative and accommodative refractive accommodative esotropia (RAE).

Methods: Eighty-one eyes of 81 patients were included in this prospective, case-control study. The patients were divided into three groups as follows: the RAE group (n = 31), the hypermetropia group (n = 25), and the emmetropia group (n = 25).

Alexithymia, depression and anxiety in parents of children with neurodevelopmental disorder: Comparative study of autistic disorder, pervasive developmental disorder not otherwise specified and attention deficit-hyperactivity disorder.

Background: Recent studies have shown that individuals with neurodevelopmental disorders and their relatives have problems expressing and recognizing emotions, but there is a lack of studies on alexithymia, and the relationship between parental alexithymia and depression-anxiety symptoms in these groups. The aim of this study was therefore to measure alexithymia, depression, and anxiety levels in parents of children with pervasive developmental disorders and attention deficit-hyperactivity disorder (ADHD), and determine whether there is a positive correlation between the child's neurodevelopmental problem severity and parent scores.

Methods: Parents of 29 autistic disorder (AD), 28 pervasive developmental disorder not otherwise specified (PDD-NOS) and 29 ADHD children were recruited into the study, and completed a demographic information form, as well as the Toronto Alexithymia Scale (TAS-20), Beck Depression Inventory, and State-Trait Anxiety Inventory.

Effect of corneal biomechanical properties on surgically-induced astigmatism and higher-order aberrations after cataract surgery.

Purpose:: To investigate the relationship between biomechanical properties of the cornea and postoperative refractive changes in patients with low-level astigmatism after cataract surgery.

Methods:: This prospective study recruited patients undergoing cataract surgery involving 2.8-mm superior incisions.

Effect of selective laser trabeculoplasty on macular thickness.

Background: To investigate the effects of selective laser trabeculoplasty (SLT) on macular thickness change.

Methods: Forty eyes of 40 consecutive patients with uncontrolled primary open-angle glaucoma with medical treatment were included in this prospective study. SLT was performed to the inferior 180°, and macular thickness was measured.

Comparison of Results of Accelerated Corneal Cross-Linking With Hypo-Osmolar Riboflavin Solution Performed on Corneas Thicker and Thinner Than 400 μm.

Purpose: To evaluate the effect of accelerated corneal cross-linking (CXL) according to corneal thickness in keratoconus.

Methods: Patients undergoing corneal CXL (9 mW/cm(2)) with hypo-osmolar riboflavin solution were included in this study. The patients were divided into 2 groups.

Neuropsychological Evaluation of Children and Adolescents With Acute Carbon Monoxide Poisoning.

Objectives: Carbon monoxide (CO) poisoning is a worldwide health problem. We have limited information regarding psychological adversities of CO poisoning in children and adolescents. The aim of this study was (1) to investigate the effects of severe CO poisoning on cognitive functions, mood, and behaviors in children and adolescents and (2) to identify factors related to occurrence of neuropsychological symptoms.

Arsenic removal in a sulfidogenic fixed-bed column bioreactor.

In the present study, the bioremoval of arsenic from synthetic acidic wastewater containing arsenate (As(5+)) (0.5-20mg/L), ferrous iron (Fe(2+)) (100-200mg/L) and sulfate (2,000 mg/L) was investigated in an ethanol fed (780-1,560 mg/L chemical oxygen demand (COD)) anaerobic up-flow fixed bed column bioreactor at constant hydraulic retention time (HRT) of 9.6h.

Use of Complementary and Alternative Medicine in Children with Autism Spectrum Disorders: A Multicenter Study.

Introduction: This study examined the prevalence of the use of different complementary and alternative medicine (CAM) strategies, families' attitudes and belief systems about the use of these strategies, and the economic burden of these strategies placed on family income in families of children with autism spectrum disorders (ASD).

Method: A questionnaire survey concerning the use of CAM in children with ASD was administered to parents in the five different geographic locations in Turkey.

Result: Of the 172 respondents, 56% had used at least one CAM therapy.

Indoor aerosol determination with respect to a soiling phenomenon in private residences.

Indoor aerosol exposure has become of major interest since health hazards arising from fine and ultrafine dust particles have become more evident. The study presented here is dedicated to fine and ultrafine dust characterization and determination in more than 150 private residences with special respect to a phenomenon of enhanced soiling. In the scientific community committed to ecological housing and building it is referred to as "black magic dust" though the staining is often film-like in nature.

Plasma protein oxidation is correlated positively with plasma iron levels and negatively with hemolysate zinc levels in sickle-cell anemia patients.

Introduction: Sickle-cell anemia (SCA) is a disease of high oxidative stress. The oxidative medium of SCA was evaluated by protein oxidation parameters and their correlation with lipids and ions were investigated both in the plasma and in the erythrocyte.

Methods: Blood samples were obtained from 15 steady-state patients with SCA, 10 carriers, and 10 controls.