61 research outputs found
The Mediating Role of Emotion Lability and Emotion Regulation in The Relationship Between Social-Emotional Adaptation with Behavior Regulation and Social Skills Among Preschool Children
Self-regulation is defined as an individual's ability to control and regulate their own behavior; this skill, forming the foundation of social adjustment, influences one's ability to interact with their environment and manage relationships. Emotion regulation, on the other hand, involves the ability to manage emotional responses and is believed to establish a critical connection between social adjustment and self-regulation. In this study, the aim is to determine the mediating role of emotion regulation in the relationship between behavioral regulation, social skills, and social-emotional adjustment skills using two different models.The study included a total of 216 children aged 5 and 6. Data were collected using the Socio-Demographic Information Form, Emotion Regulation Scale (ERS), Child Behavior Rating Scale (CBRS), and Marmara Social-Emotional Adaptation Scale (MSEAS). When socio-demographic variables were evaluated in terms of social competence and social-emotional adjustment scores according to gender, significant differences were found in favor of girls. Significant differences were also found in favor of children with working mothers when evaluated based on the mother's employment status. There were moderate significant correlations found between emotion regulation, child behavior assessment, and social-emotional adjustment. According to the mediation analyses, there was a partial mediating effect of emotion variability/negativity and emotion regulation in the relationship between behavior regulation and social-emotional adjustment. Similarly, there was a partial mediating effect of emotion variability/negativity and emotion regulation in the relationship between social competence and social-emotional adjustment. It is thought that the finding that children's emotion regulation and emotion variability/negativity mediate the relationship between social-emotional adjustment, social competence, and behavior regulation will contribute to the literature
Caesarean Section with Spinal Anesthesia and Postspinal Headache
Purpose: To find out ‘what is the leading cause of postpartum headache in patients undergoing caesarean section with spinal anesthesia under elective conditions?’Methods: Our study was conducted with retrospective, controlled assessment of 304 patients who underwent caesarean section with spinal anesthesia under elective conditions at our institution between 1 June 2012 and 1 November 2012. The patients were assessed in terms of postpartum headache. They were divided into 2 groups: the group with headache versus the group without headache (the latter was the control group). Both groups were compared with respect to age, body mass index (BMI), number of previous pregnancies, indications for caesarean section, the spinal needle used during spinal anesthesia, preoperative and postoperative amount of fluid administration, and mobilization time.Results: None of the factors that are effective in development of headache, i.e. age, multiparity, the indication for caesarean section, BMI, and needle type, was statistically significant in logistic regression analysis. Only the needle type was significantly related to headache in Chi-Square test. All headache episodes were mild and improved with conservative therapy. We did not find any difference between groups with respect to age, BMI, number of previous pregnancies, indications for caesarean section, preoperative and postoperative amount of fluid administration, and mobilization time.Conclusion: In patients undergoing cesarean section with spinal anesthesia under elective conditions the main cause of headache is the type of the spinal needle used
Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography Imaging of a Patient with Squamous Cell Carcinoma of Prostate
Primary squamous cell carcinoma is an uncommon tumor of the prostate gland. We report a 77-year-old male patient with urinary frequency and constipation. Fine needle biopsy from prostate was suspicious of squamous cell carcinoma of the prostate. Whole body positron emission tomography/computed tomography scan revealed high fluorodeoxyglucose uptake
in prostate gland. Transurethral resection confirmed the diagnosis. In contrast to prostatic adenocarcinoma, high fluorodeoxyglucose accumulation was observed in the primary tumor of the prostate gland
Increased fat graft survival with mesenchymal stem cell recruiting effect of PRP: in vitro and in vivo study of application techniques
Aim: Adding platelet-rich plasm (PRP) or mesenchymal stem cells are the most accepted methods to increase fat graft’s permanence. However, there is no consensus on timing and whether the effect of stem cells or PRP is observed more in the recipient area or in the donor area.
It is aimed to present the application method and localization of PRP to be combined with fat graft to increase the survival.
Material and Methods: in vitro part: Fat grafts were kept in a medium containing PRP. Cell output from the fat graft to the Petri dishes was examined every day. The time to recruit the maximum number of stem cells to the medium was determined (day 10). in vivo part: Eight group of rats were received PRP in different concentrations either to recipient or donor areas of fat grafts. After ten days, fat grafts were transferred to the recipient area. Ninety days after the transfer, histopathological examination and immunohistochemical staining were performed.
Results: The group which had received the full-dose PRP to the recipient area showed the highest cellular integrity and vascularity (p< 0.05). Vascularity was superior in the half-dose PRP group compared to the control group (p< 0.05); cellular integrity did not increase. Donor site groups did not show increase in cellular integrity.
Conclusion: Although PRP starts to increase fat graft permanence by increasing vascularity, it acts by preserving the cellular integrity of the fat cells as the concentrations increase. The PRP injection to the recipient area 10 days before fat grafting may provide higher survival rates
A novel colorimetric sensor for measuring hydroperoxide content and peroxyl radical scavenging activity using starch-stabilized gold nanoparticles
A novel colorimetric nanosensor was developed for evaluating peroxyl radical scavenging activity of phenolic antioxidants and for the detection of hydroperoxides formed during AAPH-induced oxidation of linoleic acid emulsions. Starch was used as a green reduction/stabilization agent for gold nanoparticles (AuNPs) synthesis in alkaline medium. When tert-butyl hydroperoxide (ten-BHP) was incubated with an excess of iodide ions in a 37 degrees C water bath for 90 min, triodide (I-3(-)) was formed in an amount equivalent to tert-BHP concentration. Upon the addition of starch-stabilized gold nanoparticles (ss-AuNPs) solution to the incubation mixture, triiodide ions were rapidly adsorbed on the surface of AuNPs and caused their aggregation. A concomitant red shift (from 525 nm to 563 nm) of surface plasmon resonance (SPR) absorption of the nanoparticles was observed, absorbance linearly increasing with aqueous tert-BHP concentration. The method provided an LOD of 39 mu M for tert-BHP, and was validated through linearity, precision and accuracy. The concentration of hydroperoxides estimated in linoleic acid peroxidation correlated well with those found by the reference ferric thiocyanate assay. Peroxyl radical scavenger antioxidants decreased the red-shifted SPR absorption of aggregated ss-AuNPs, thereby enabling an indirect estimation of antioxidant activity. This AuNPs-based colorimetric sensor is the first of its kind to directly determine peroxyl radical scavenging activity of polyphenols. The half-maximal inhibitive concentrations (IC50) of selected antioxidant compounds were calculated by utilizing the decrease in absorbance with increasing concentration of scavengers, and compared to those of classical oxygen radical absorbance capacity (ORAC) assay. The proposed nanosensor was superior over FL-based ORAC in determining the peroxyl radical scavenging activity of the lipophilic antioxidant alpha-tocopherol. The percentage scavenging of real samples such as green tea infusion and synthetic serum were determined. The proposed assay can be used for estimating the peroxyl scavenging of various food and biological samples in terms of its low cost, ease of use and compatibility
Evaluation of Irrigation Systems and some Pitch Properties of Selected Football Fields in Istanbul
Football fields composed of natural grass must maintain a playable state throughout the season. Substructure problems such as inadequacies in drainage and irrigation systems may adversely affect a player's health and game quality in rainy and/or dry seasons. The scope of the study encompasses eight football fields, which have natural turf combined with semi- or fully automatic sprinkler systems, with permission given for study in Istanbul. Irrigation systems, infiltration rate, surface hardness, turf coverage and root penetration parameters were investigated on these playing fields. The results were evaluated according to FIFA, UEFA, TFF and other national and international standards. Our findings showed that none of the sprinkler systems of these football fields could meet the minimum Christiansen's coefficient of uniformity ratio (84%). Only one of the sprinkler systems of the stadiums had a fair rating according to a distribution uniformity ratio. All fields, except for one, had low (<100 mm h(-1)) infiltration rates for first-class grounds. Cover percentages of the lawns were at desirable levels except for one stadium, which had excessive weed problems. Generally, root depths (<15 cm) and plant densities (5-15) were poor in the fields. Surface hardness was high (107 G-max) in one stadium, normal in another stadium (72 G-max) and low (< 70 G-max) in the rest. (c) 2019 John Wiley & Sons, Ltd
Incidentally Detected Kaposi Sarcoma of Adrenal Gland with Anaplastic Features in an HIV Negative Patient
Kaposi sarcoma (KS), a vascular tumor caused by infection with human herpesvirus 8 (HHV8), is a systemic disease that can present with cutaneous lesions with or without visceral involvement. Very few cases of KS, most of which were associated with AIDS, have been reported in the adrenal gland. Anaplastic transformation of KS is a rare clinical presentation known as an aggressive disease with local recurrence and metastatic potential. We report here a 47-year-old HIV negative male presented with extra-adrenal symptoms and had an incidentally detected anaplastic adrenal KS exhibited aggressive clinical course. To the best of our knowledge, this is the first case of anaplastic primary adrenal KS without mucocutaneous involvement but subsequently developed other side adrenal metastases in an HIV negative patient
Differences in responsivity of original cupric reducing antioxidant capacity and cupric-bathocuproine sulfonate assays to antioxidant compounds
The cupric reducing antioxidant capacity (CUPRAC) method using bathocuproine sulfonate (BCS) as cuprous-chelating ligand claims to be an efficient substitute for the conventional CUPRAC assay using neocuproine; however, differences in their physical chemistry give rise to significantly varying responsivities to antioxidant compounds. The antioxidant capacity due to beta-carotene (in acetone or dichloromethane) was fully measurable by conventional CUPRAC but not at all by cupric-BCS assay. Furthermore, CUPRAC exhibits distinctly stronger responses than cupric-BCS to naringenin, alpha-tocopherol, and bilirubin. (C) 2012 Elsevier Inc. All rights reserved
Determination of antioxidants by a novel on-line HPLC-cupric reducing antioxidant capacity (CUPRAC) assay with post-column detection
A novel on-line HPLC-cupric reducing antioxidant capacity (CUPRAC) method was developed for the selective determination of polyphenols (flavonoids, simple phenolic and hydroxycinnamic acids) in complex plant matrices. The method combines chromatographic separation, constituent analysis, and post-column identification of antioxidants in plant extracts. The separation of polyphenols was performed on a C18 column using gradient elution with two different mobile phase solutions, i.e., MeOH and 0.2% o-phosphoric acid. The HPLC-separated antioxidant polyphenols in the extracts react with copper(II)-neocuproine (Cu(II)-Nc) reagent in a post-column reaction coil to form a derivative. The reagent is reduced by antioxidants to the copper(I)-neocuproine (Cu(I)-Nc) chelate having maximum absorption at 450 nm. The negative peaks of antioxidant constituents were monitored by measuring the increase in absorbance due to Cu(I)-Nc. The detection limits of polyphenols at 450 nm (in the range of 0.17-3.46 mu M) after post-column clerivatization were comparable to those at 280 nm UV detection without clerivatization. The developed method was successfully applied to the identification of antioxidant compounds in crude extracts of Camellia sinensis, Orignnum marjorana and Mentha. The method is rapid, inexpensive, versatile, non-laborious, uses stable reagents, and enables the on-line qualitative and quantitative estimation of antioxidant constituents of complex plant samples. (C) 2010 Elsevier B.V. All rights reserved
Antioxidant capacity of quercetin and its glycosides in the presence of beta-cyclodextrins: influence of glycosylation on inclusion complexation
In this study, we aimed to investigate the inclusion complexes of the poorly water soluble flavonol, quercetin (QR) and its glycosides quercitrin (QRC) and rutin (RT), formed with beta-cyclodextrin (beta-CD), 2-hydroxyethyl-beta-cyclodextrin (HE-beta-CD), 2-hydroxypropyl-beta-cyclodextrin (HP-beta-CD), and methyl-beta-cyclodextrin (M-beta-CD) by using UV-Vis spectrophotometric and spectrofluorometric techniques. The formation constants (K (f) ) of 1:1 stoichiometric inclusion complexes were calculated from Benesi-Hildebrand equation using fluorescence spectroscopic data. Maximum inclusion ability was measured in the case of M-beta-CD for rutin and quercitrin. Among CDs, HP-beta-CD was most effective for complexing quercetin. The glycosylation of flavonoids considerably affects the binding process. The formation constants of flavonoid-CD complexes decrease after glycosylation. The influence of complexation of quercetin, rutin and quercitrin with native and modified beta-CDs on their trolox equivalent antioxidant capacity (TEAC) was studied by the Cupric Ion Reducing Antioxidant Capacity method. It was found that the complexed polyphenols with CDs were much stronger antioxidants than free forms. Antioxidant capacity of HP-beta-CD-complexed QR (compared to that of pure QR) was increased by 7.18 % in methanolic solution. Increase in TEAC for M-beta-CD-complexed RT and M-beta-CD-complexed QRC were measured as 4.30 and 14.8 %, respectively
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