Faika Sanal Karahan, Erdal Hamarta and Ali Yavuz Karahan
The purpose of the present study is to translate and adapt the Geriatric Anxiety Scale (GAS), a 30-item self-report measure of anxiety among older adults, into Turkish and examine…
Abstract
The purpose of the present study is to translate and adapt the Geriatric Anxiety Scale (GAS), a 30-item self-report measure of anxiety among older adults, into Turkish and examine its basic psychometric properties. We tested the translated GAS in a sample of community-dwelling older adults in Konya, Turkey (N=100; Mage=71.4 years, SD=6.5; range=65-88) without a history of mental disorder and sufficient cognitive abilities. To assess the convergent validity, Turkish versions of the Beck Anxiety Inventory (BAI) and Geriatric Depression Scale (GDS) were administered. The mean GAS total score was 13.33 (SD=11.86). Due to low item-total correlations (<0.30), two items (items 2 and 3) were removed from the Turkish version of the GAS. The internal reliability (Cronbach's alpha) was excellent for the total score (0.91) and acceptable for the subscales (somatic = 0.71; cognitive = 0.85; affective = 0.84). Regarding the convergent validity, the GAS total score was significantly and positively correlated with the total scores of the BAI (r=0.87, P<0.05) and GDS (r=0.57, P<0.05), with large effect sizes. Implications: The newly translated Turkish version of the GAS has promising utility in an older adult Turkish sample. Future studies of this measure are warranted.
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Ömer Erturk, Sefine Kalın and Melek Çol Ayvaz
The purpose of this paper is to characterize monofloral and heterofloral honey samples (chestnut, lavandula, acacia and sunflower) from different regions of Turkey according to…
Abstract
Purpose
The purpose of this paper is to characterize monofloral and heterofloral honey samples (chestnut, lavandula, acacia and sunflower) from different regions of Turkey according to their physicochemical (moisture content, acidity, ash, sucrose, reducing sugar and hydroxymethylfurfural content) and biochemical properties to compare regional and species differences that are thought to contain different types of plant sources.
Design/methodology/approach
Physicochemical investigations were performed according to AOAC methods. Mineral analysis and volatile analysis were performed by using atomic absorption spectrometry and GC–MS, respectively. Antimicrobial activities of honey samples were evaluated based on disc diffusion method and minimum inhibition concentration (MIC) values. The assays followed to determine total phenolic content and antioxidative and activities are spectrophotometric methods.
Findings
The obtained values of physicochemical parameters are among the values that can be accepted according to legal regulations. The most abundant mineral was potassium, which made up 81 per cent of the total mineral content, ranging between 165.7 and 301.6 mg/kg. A total of 87 different volatile components, some of which are highlighted in the literature to have antimicrobial and antioxidant effects, were detected. The maximum phenolic content, antioxidant activity against DPPH radical and ferric reducing ability were detected in the chestnut honeys. All tested honeys showed antimicrobial activity with MIC values between 6.25 and 50 µg/mL.
Originality/value
The present study has the feature of being a large study in terms of the region from where honey samples were selected and choice of analysis. The values obtained from physicochemical parameters reveal that the honeys from related region can be consumed with confidence. The biological properties found in honeys make them products of high added value and excellent quality.
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Muhammad Azhar Khan, Nabeel Safdar and Saadia Irfan
Prior evidence that financial reporting quality (FRQ) of publicly listed firms improves investment efficiency in developed markets leaves unaddressed questions of whether this…
Abstract
Purpose
Prior evidence that financial reporting quality (FRQ) of publicly listed firms improves investment efficiency in developed markets leaves unaddressed questions of whether this relationship holds in emerging and frontier markets and what channels influence this relationship. This study aims to test the role of financial constraints faced by firms and managerial risk-taking on the association of FRQ and investment efficiency in 13,231 publicly listed firms in 24 emerging and frontier markets.
Design/methodology/approach
Available accounting data from 1998 to 2022 are collected for all listed firms across 41 industries in 24 countries. Causal relationships are tested using fixed-effect regression analysis, several additional tests and robustness checks are applied using alternative proxies and concerns for endogeneity are addressed using two-stage least square and system generalised method of moments analysis.
Findings
Findings show that FRQ of firms in emerging and frontier markets positively affects investment efficiency, the affirmative impact of FRQ on investment efficiency is higher when firms are facing more financial constraints and when managerial risk-taking is lower and financial constraints and risk-taking have a more pronounced impact on the link between FRQ and investment efficiency in the under-investment scenario.
Originality/value
These findings contribute to the growing body of evidence, shedding light on the meticulous interplay between FRQ and investment efficiency in frontier and emerging markets. Specifically, the increased financial constraints encountered by firms and a more conservative approach to managerial risk-taking emerge as crucial factors complementing this relationship.