Scopus İndeksli Yayınlar Koleksiyonu

Permanent URI for this collectionhttps://hdl.handle.net/20.500.12514/3596

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Citation - WoS: 6
Citation - Scopus: 6
1-6 Years Aged Childrens Mothers' First Aid for Burns Observation in Mardin City Center
(Derman Medical Publ, 2013) Inanc, Betul Battaloglu; Sahin, Deniz Say; Demir, Cemil
Aim: In this study, we aimed to determine the mothers knowledge levels about burns and first aid. When they encounter burns, what will they do in the first instance and emergency application. At the end of this research correct information given to mothers. Aimed to supply the deficiency information. Material and Method: 25-49 age group of mothers who have 1-6 years aged childrens in the study were choisen ramdomly. After being informed about the study, only volunteries for questionnaires were used. There were a thousand mothers. Results: Children 21.6 % have burns. 81.4% burns were in their house , 18.6 % burns were out of their house. Often burns case were 2-4 years aged group children. 89.6 % mothers found themselves have no true knowledge about first aid for burns. Discussion: Mothers knowledge more deficient about the first aid for the burns. In this regard mothers lack of knowledge must be correct with the training activities to be applied. Prime necessity of the mothers were informed about the right applications.
Citation - Scopus: 3
A Rare Cause of Dysphagia: A Giant Ganglioneuroma in Parapharyngeal Space
(Springer, 2022) Aslan, Mehmet; Dogukan, Fatih Mert
Parafarengeal ganglioneuroma is a very rare benign tumor originating from the sympathetic nervous system that produces mass and functional effects. Ganglioneuroma is most commonly caused by the posterior mediastinal, retroperitoneal area and adrenal glands. Generally, they do not present any additional signs or symptoms other than mass. Horner’s syndrome may sometimes occur due to the compression of the sympathetic chain. A 41-year-old male patient with a long-standing mass in the lateral compartment of the left neck was admitted to our clinic. The patient was operated, and the pathological result of the mass was reported as ganglioneuroma. We present a rare case of ganglioneuroma in paraphryngeal space by reviewing the current literature. © 2022 Elsevier B.V., All rights reserved.
Acute Cyanide Intoxication Due To Apricot Seed Ingestion
(Soc Argentina Pediatria, 2024) Talay, Mehmet N.; Gungor, Emre; Orhan, Ozhan
Introduction : Cyanide poisoning, whether it be accidental or intentional, remains a significant danger to adults and children, especially in societies where agriculture is a primary source of income. We examined the clinical follow-up, complications, and results of cyanide poisoning cases that occurred after eating the pits and seeds of plants containing cyanide glycosides, such as apricot kernels and almonds. Methods : Between 01/01/2017 and 01/08/2022, 14 children aged 1-18 years who were followed up with a prediagnosis of cyanide poisoning in our Paediatric Intensive Care Unit (PICU) were retrospectively analysed. Results : Eight of the patients followed with a preliminary diagnosis of cyanide poisoning were female and six were male. The most common admission month was July (42.8%) coinciding with the agricultural season. The most common symptoms at presentation were weakness and fatigue (n = 7). In the PICU, 4 patients presented lip cyanosis; 3, altered level of consciousness. Vomiting, seizure, headache, dizziness and palpitatons were less frequent. Four patients were treated with hydroxocobalamin (Cyanokit (R) ) as an antidote due to acidosis in their blood gases. All patients treated for cyanide poisoning were discharged. Conclusions : Cyanide poisoning should be considered in paediatric patients with suspicious findings, sudden loss of consciousness, increased anion gap acidosis and lactic acidosis. The history of eating the seeds of plants such as apricot and almonds should be investigated .
Adölesan Annelerde Emzirme Destek İhtiyaçları Ölçeği Türkçe Formunun Geçerlilik ve Güvenirlik Çalışması
(Atatürk Univ, 2025) Turfan, Esın Ceber; Yeşil, Yeşim; Eksıoglu, Aysun; Buyrukoğlu, Rabia Ceren
Amaç: Bu çalışma “Adölesan Annelerde Emzirme Destek İhtiyaçları Ölçeği” nin Türkçe’ ye uyarlanması, geçerlik ve güvenirliğinin belirlenmesi amacıyla yapılmıştır. Yöntemler: Kesitsel ve metodolojik tasarımda yürütülen çalışmaya 15-20 yaş aralığında 140 adölesan anne dahil edilmiştir. Türkiye'nin Güneydoğu Anadolu bölgesindeki bir ikinci basamak sağlık kuruluşunda uygulanan çalışmada örneklem seçimi, gönüllülük esasına dayalı olarak gerçekleştirilmiştir. Veriler, Tanımlayıcı Bilgi Formu ve Adölesan Annelerde Emzirme Destek İhtiyaçları Ölçeği kullanılarak toplanmıştır. Ölçeğin dil geçerliliği uzman görüşleri ile sağlanmış ve kapsam geçerliliği değerlendirilmiştir. Verilerin değerlendirilmesinde faktör analizi, Cronbach alfa ve madde analizleri uygulanmıştır. Bulgular: Analizler sonucunda ölçek 17 madde ve üç alt boyuttan oluşmuştur. Alt boyutlar (1) Değerlendirme ve Bilgilendirme, (2) Emzirme Davranışına Destek ve (3) Bireysel Emzirme Desteği olarak isimlendirilmiştir. Doğrulayıcı faktör analizine göre, model uyum indeksleri x²⁄SD=2,579, GFI=0,805, CFI=0,865, NFI=0,800, RMSEA=0,076 olarak hesaplanmış ve modelin iyi uyum gösterdiği saptanmıştır. Maddelerin faktör yükleri 0,486-0,855 arasındadır. Ölçeğin Cronbach Alfa katsayısı 0,911 olarak bulunmuş olup, korelasyon katsayıları 0,326 ile 0,762 arasında değişmektedir. Sonuç: Analizler, ölçeğin Türkçe formunun geçerli ve güvenilir bir araç olduğunu göstermektedir. Bu ölçek, adölesan annelerin emzirme sürecindeki destek ihtiyaçlarını belirlemek ve sağlık çalışanlarının bu ihtiyaçları ne ölçüde karşıladığını değerlendirmek için uygun bir araç olabilir.
Citation - Scopus: 2
Allium calyanense (Amaryllidaceae), a New Species from Eastern Anatolia, Turkey
(Finnish Zoological and Botanical Publishing Board, 2023) Balos, Mehmet Maruf; Geçit, Musa
Allium calyanense Balos & Geçit (Amaryllidaceae) is described as a new species from Van Province, eastern Anatolia, Turkey. Diagnostic characteristics, a comprehensive description, photographs of the species and a distribution map are provided. Based on morphology, it belongs to Allium subgen. Polyprason sect. Scorodon. It resembles A. anacoleum, A. capitellatum and A. microspathum but morphologically differs from them by e.g. bulb size, stem length, leaf sheath, leaf shape, perigon colour, size and colour of outer and inner tepals, and different filaments. © 2023 Elsevier B.V., All rights reserved.
Citation - Scopus: 4
Allium farashinense (Amaryllidaceae), a New Species from Eastern Anatolia, Turkey
(Finnish Zoological and Botanical Publishing Board, 2023) Balos, Mehmet Maruf; Geçit, Musa
Allium farashinense Balos & Geçit (Amaryllidaceae) is described as a new species from Şırnak Province, eastern Turkey. Diagnostic characteristics, a comprehensive description, images of the species, and a distribution map are provided. Based on morphology, it belongs to Allium subgen. Polyprason sect. Scorodon. It resembles A. anacoleum, A. capitellatum, A. longivaginatum and A. microspathum, but morphologically differs from them by e.g. bulb size, stem length, leaf sheath, leaf shape, perigon colour, outer and inner tepals, and different filaments. © 2023 Elsevier B.V., All rights reserved.
Ameloriate Effect of Glucose Monohydrate on Nicotine Sulfate-Induced Toxicity and Teratogenicity in Xenopus Embryos: an Experimental Study
(Middle Pomeranian Sci Soc Env Prot, 2023) Emre, Mustafa; Tunc, Erdal; Sertdemir, Yasar; Pekmezekmek, Ayper Boga
It is well documented that nicotine causes low birth weight, preterm birth, pregnancy difficulties, lower fertility, inhibition of spermatogenesis, and decreased steroidogenesis and potassium channels conductance of Xenopus oocytes. Lung cancer is the most well-known adverse impact of nicotine. This work used a 96-hour FETAX test to examine how concurrent administration of glucose monohydrate modifies the effects of exposure to nicotine, nicotine sulfate, and/or glucose on ion channels and membrane potential in Xenopus leavis embryos at an early stage of development. In-vitro fertilised embryos were treated with nicotine and glucose alone or in combination for this aim, and the effects of those treatments were then assessed for potential teratogenic effects. At the conclusion of the FETAX technique, the ratios of healthy, abnormal, and dead embryos were calculated, and the length of embryos in each treatment group was assessed. The ratios of abnormal and dead embryos were considerably higher with nicotine treatment alone compared to controls. Compared to the results of the nicotine-alone treatment group, the ratio of aberrant embryos was marginally reduced by concurrent glucose and nicotine therapy. In contrast, the ratio of normal embryos was raised. Additionally, treatments with glucose, nicotine, and Nic+Glu significantly altered the resting membrane potentials of fertilised oocytes (p < 0.001). Our findings indicated that the simultaneous treatment groups that also received glucose had a protective impact on embryos. Such structured, more sophisticated research is required to confirm these findings.
Citation - WoS: 23
Citation - Scopus: 31
Analysis of Promising Barley (Hordeum Vulgare L.) Lines Performance by AMMI and GGE Biplot in Multiple Traits and Environment
(Aloki Applied Ecological Research and Forensic Inst Ltd, 2019) Tekdal, S.; Dogan, S.; Kendal, E.; Karaman, M.
The development of stable and adaptable new cultivars are based only on positive results obtained from the interaction between the genotype and the environment. Therefore, the study aimed to test the stability and general adaptability of promising barley lines in terms of grain yield and traits in multi -environments. For this purpose, twelve barley genotypes were used in the study. The trials were carried out with four replications in a random design at seven environments in years 2012-13 and 2013-14. The superior and stable genotypes were identified with GGE biplot and AMMI (Additive main effects and multiplicative interaction) models. The AMMI analysis showed that the major treatment sum of squares was affected by environments (80.6%), GE (14.0%) and genotypes (5.4%), respectively. On the other hand, the first two principal component axes (PCA 1 and PCA 2) contributed to the complete interaction with 88.1%, whereas, PCA 3 and PCA 4 axes only with 12.0%. The GGE biplot indicated that G4 is adaptable for all environments, while Altikat, G2 and G3 showed specific adaptation to El, E3 and E5, G6, G7 and G8 to E6, respectively. According to both techniques, G2, G3, G6, G7, G8 and Altikat were the best genotypes with high yield, whereas G4 was the best with high yield, and stable and general adaptation. The results of biplot indicated that G4 (ARUPO /K8755//MORA/3/CERISE/SHYRIHALEL I/4/CANELA/5/HART-BAR) was recommended for release and it was released as HEVSEL in 2017. On the other hand; G7 and G6 were protected as genetic material to use as parent in breeding programs for yield stability and quality respectively.
Analysis of Pyrolysis Liquid From Green Walnut Shells (Juglans Regia L.) and Its Antifungal Activity Against Pathogenic Fungi in Ornamental Plants
(Corvinus University of Budapest, 2025) Koç, İ.
Pathogenic fungi damage ornamental plant production in both quality and quantity. Organic fungicides are significantly needed for the control of these pathogens. This study was carried out to analyze the content of pyrolysis liquid (PL) obtained from green walnut shells (Juglans regia L.) and to evaluate its antifungal activity against Fusarium oxysporum and Verticillium dahliae. This research was carried out under in vitro conditions with 5%, 10%, 15%, 20% and 25% (v/v) PL solution applications in a Randomized Plot Design with four replications. The Poisoned Food Method was used to determine the antifungal activity of PL. As a result of chemical content analysis of PL, 53 components were detected by GC-MC, and the major components were propanoic acid, 2-hydroxy-(CAS) (21.69%), e-2-undecenal (7.11%), and nonanal (5.76%). Twelve components were detected by LC-MS/MS, with vanillic acid (393.28 µg/L), vanillin (334.34 µg/L), and syringic acid (222.80 µg/L) identified as the major components. Total phenolic content (201.76 ± 12.50 mg GAE/mL) and total flavonoid content (114.74 ± 4.50 mg QE/mL) were determined. Therefore, the effect of concentration on colony size varied depending on the species. It was determined that PL showed stronger antifungal activity at higher concentrations, with the highest activity observed at the 25% (v/v) solution. © 2025, ALÖKI Kft., Budapest, Hungary.
Citation - WoS: 11
Citation - Scopus: 11
Anoxybacillus sp. SO B1-Immobilized Amberlite XAD-16 for Solid-Phase Preconcentration of Cu(II) and Pb(II) and Their Determinations by Flame Atomic Absorption Spectrometry
(TAYLOR & FRANCIS INC, 2015) Oral, Elif Varhan; Ozdemir, Sadin; Dolak, Ibrahim; Okumus, Veysi; Dundar, Abdurrahman; Ziyadanogullari, Berrin; Aksoy, Zehra; Onat, Ruken
A new method for the determination of Cu(II) and Pb(II) by flame atomic absorption spectrometry (FAAS) after preconcentrating on a column containing Anoxybacillus sp. SO B1-immobilized Amberlite XAD-16 was developed. The functional groups of Anoxybacillus sp. SO B1 immobilized on Amberlite XAD-16 were characterized in KBr tablets by Fourier transform infrared (FT-IR) spectrometry. Various parameters such as pH, amount of the adsorbent, eluent type and volume, and flow rate of the sample solution were studied. The optimum pH values of quantitative sorption for Cu(II) and Pb(II) were found to be pH 7.0 and 5.0 and Cu(II) and Pb(II) ions could be quantitatively eluted with 5.0ml of 1.0mol L-1 HCI and 10.0ml of 0.25mol L-1 HNO3, respectively. Recoveries of Cu(II) and Pb(II) were found to be 100.9 +/- 1.57% and 100.3 +/- 0.49% (N = 5), the limits of detection of Cu(II) and Pb(II) in the determination by FAAS (3s, N = 10) were found to be 0.8 and 1.6 mu g L-1, respectively. The proposed enrichment method was applied for metal ion determination from water samples such as two parts of Tigris River water in Diyarbakir and Elazig, Lake of Hazar in Elazig, and tap water in Diyarbakir. Furthermore, the accuracy of the proposed method was verified by studying the analytical recovery and by analyzing certified reference material (NCS-DC 73350 leaves of poplar).
Citation - WoS: 7
Citation - Scopus: 10
Antecedents of Gastronomy Destination Brand Equity: an Examination of Gastronomy Experience, Motivation, and Destination Satisfaction
(Akdeniz Univ, Tourism Fac, 2023) Kodas, Davut; Ozel, cagil Hale
This paper aims to test the relationships among gastronomic experience, motivation, destination satisfaction, and gastronomy destination brand equity. Data (n:600) was gathered from domestic visitors visiting Gaziantep in March, April to May 2018. Scale development to measure gastronomy experiences and scale adaptation process of destination brand equity were carried out. The relationships among the variables were examined with structural equation modeling. According to the findings, except H5 and H8, all hypotheses are significant in the research model. At the end of the study, significant theoretical and managerial implications were provided for the tourism providers and destination marketers, and managers.
Citation - WoS: 10
Citation - Scopus: 10
APPLICATION OF EXERGOECONOMIC ANALYSIS FOR POWER PLANTS
(VINCA INST NUCLEAR SCI, 2018) Unal, Fatih; Ozkan, Derya Burcu
Currently, energy resources are rapidly consumed. Therefore, scientists and engineers study the effective use of energy. In the present study, a thermodynamic and exergoeconomic analysis was performed in a thermal power plant in Turkey. The study involved determining the thermodynamic properties of 27 node points in a thermal power plant unit, and this was followed by calculating energy and exergy values of every node. Mean exergy costs were calculated by establishing energy and exergy balances of the equipment with respect to the calculated results. Subsequently, lost and damaged energies and exergies were calculated, and exergoeconomic factors were determined. The equipments were compared with each other on a graph based on the obtained results. The maximum rate of exergy loss and cost of exergy destruction corresponded to 79.5% and 886,66 $/h, respectively. The maximum exergy losses in a thermal power plant occurred in the boiler, turbine groups, condenser, heating group, pumps, and auxiliary groups. The highest and second highest law efficiencies of the studied thermal power plant corresponded to 32.3% and 28.5%, respectively. The study also involved presenting suggestions for improvement. Additionally, exergoeconomic analyses were conducted while considering the power plants' investment and equipment maintenance costs. It is expected that the calculation method and the obtained results can be applied to other thermal power plants.
Citation - WoS: 4
Citation - Scopus: 4
Application of Half-Sandwich Metal-Phosphinite Compounds to Biological Activities: Determine the energies of the HOMO and LUMO levels
(Wiley Online Library, 2022) Meriç, Nermin; Rafikova, Khadichakhan; Zazybin, Alexey; Güzel, Remziye; Kayan, Cezmi; Karakaş, Duygu Elma; Dündar, Abdurrahman; ISLAM, Sholpan; Okumuş, Veysi; Aydemir, Murat
Mononuclear transition metal complexes 1-(furan-2-yl)ethyldiphenyl[dichloro(η6-p-cymene)ruthenium(II)]phosphinite, (2), 1-(furan-2-yl)ethyldiphenyl[dichloro(η6-benzene) ruthenium(II)] phosphinite (3), 1-(furan-2-yl)ethyldipheny[chloro(η4-1,5-cyclooctadiene)rhodium(I)]phosphinite (4), 1-(furan-2-yl)ethyldiphenyl[dichloro (η5pentamethylcyclopentadienyl)iridium (III)] phosphinite (5) were synthesized and characterized by microanalysis, infrared, MS, and NMR spectroscopy. The biological activities of the complexes were also tested. Compounds 2 and 5 were the best complexes at DPPH radical scavenging and reducing power activity at 73.27 % and 0.41 at 200 μg/mL, respectively. The highest antimicrobial activity exhibited by complex 3 as 14 mm inhibition zone against S. aureus. All of the complexes have cleaved the DNA from the double-strand and exhibited three bands on gel electrophoresis. Moreover, cyclic voltammetry studies of the phosphinite complexes were carried out to determine the energies of the HOMO and LUMO levels as well as to estimate their electrochemical and some electronic properties.
Citation - WoS: 7
Citation - Scopus: 9
Applications of He's Semi-Inverse Variational Method and Item To the Nonlinear Long-Short Wave Interaction System
(inst Advanced Science Extension, 2019) Tekiyeh, Ramin Mehdizad; Manafian, Jalil; Baskonus, Haci Mehmet; Dusunceli, Faruk
This work deals with exact soliton solutions of the nonlinear long-short wave interaction system, utilizing two analytical methods. The system of coupled long-short wave interaction equations is studied by two analytical methods, namely, the generalized tan (phi/2)-expansion method and He's semi-inverse variational method, based upon the integration tools. Moreover, in this paper, we generalize two aforementioned methods which give new soliton wave solutions. Abundant exact traveling wave solutions including solitons, kink, periodic and rational solutions have been found. These solutions might play an important role in engineering and physics fields. By using these methods, exact solutions including the hyperbolic function solution, traveling wave solution, soliton solution, rational function solution, and periodic wave solution of this equation have been obtained. In addition, by using Matlab, some graphical simulations were done to see the behavior of these solutions. (C) 2019 The Authors. Published by IASE.
Citation - WoS: 2
Citation - Scopus: 2
Assessing the Prognostic Value of Halp Score in Peripheral Artery Disease: Correlation With Lesion Severity and Long-Term Mortality
(Sage Publications Ltd, 2025) Evsen, Ali; Aktan, Adem; Kilic, Raif; Yalcin, Abdulaziz; Ozbek, Mehmet
Introduction Peripheral artery disease (PAD) poses a growing clinical challenge due to an aging population, despite advances in treatment methods. Various scoring systems have emerged to predict high-risk patients, including the HALP (hemoglobin, albumin, lymphocyte, and platelet) score, known for predicting prognosis in cancers and stroke. This study assesses the HALP score's relation to lesion severity and long-term mortality in PAD patients. Methods We retrospectively analyzed 305 symptomatic PAD patients undergoing endovascular intervention. The following formula was used to calculate the HALP score: hemoglobin (g/L) x albumin (g/L) x lymphocyte count (/L) / platelet count (/L). Lesion severity was classified by TASC-II: TASC AB and TASC CD. Mortality data were obtained from hospital and social security records. Results The study involved 305 patients (mean age 64.4 +/- 11.8 years; 72.1% male), divided into survivors (208) and non-survivors (97). ROC analysis identified HALP score as the strongest predictor of long-term mortality (AUC: 0.736; 95% CI: 0.679-0.793; p < .001). HALP score (HR, 0.087; 95% CI, 0.025-1.300; p < .001), age (p < .001), DM (p = .007), and CRP (p = .013) independently predicted mortality. Kaplan-Meier analysis showed higher HALP scores linked to lower long-term mortality (Log-rank: 20.102, p < .001), with an average follow-up of 48 +/- 18 months. Conclusion The HALP score emerged as a robust predictor of PAD prognosis, surpassing individual components and other parameters. Lower HALP scores correlated with more severe lesions and reduced life expectancy.
Citation - WoS: 9
Citation - Scopus: 10
Assessment of renal function in obese and overweight children with ngal and kim-1 biomarkers
(Nutricion Hospitalaria, 2020) Unsal, Velid; Gül, Ali; Yılmaz, Resul; Özmen, Zeliha Cansel; Demir, Osman; Gümüşer, Rüveyda
Aim and background:the incidence of obesity has increased among children, and obesity has been considered an independent risk factor for chronic kidney disease. We aimed to determine the degree of kidney function impairment by evaluating urine neutrophil gelatinase-associated lipocalin (NGAL) and kidney injury molecule-1 (KIM-1) levels. Materials and methods: in total, 15 obese, 26 overweight, and 26 control adolescents aged 10 to 16 years were enrolled into the study. Urine samples were evaluated for NGAL and KIM-1 levels using enzyme-linked immunosorbent assay kits. We investigated the association between obesity and related comorbidities with urinary NGAL and KIM-1 excretion. Results: no significant differences were noted between the obese, overweight, and control groups in urinary NGAL and KIM-1 excretion (p = 0.327 and p = 0.917, respectively). In the obese and overweight groups urinary NGAL levels were 50.39 [30.88-74.22] in females and 26.67 [23.24-45.59] in males (p = 0.013). Also, urinary NGAL levels were increased in obese and overweight adolescents with LDL dyslipidemia at 64.12 [30.98-114.32] as compared to those without LDL dyslipidemia: 39.51 [25.59.56.37] (p = 0.024). Furthermore, a correlation was observed between insulin and homeostasis model assessment of insulin resistance levels with the NGAL/creatinine ratio in the overweight group (r = 0.515; p = 0.008, and r = 0.483; p = 0.014, respectively). Such correlation was not found in the obese group. Conclusion: the effect of obesity on renal function could not be determined in children. A longer exposure may be required for obesity-induced disruption of renal function in children. Renal function may be disrupted by dyslipidemia in obese adolescents. Furthermore, obesity impaired renal function in female adolescents. The normalization of these urinary markers as related to urine creatinine should be discussed.
Attitudes of Health Sciences Students in Turkey Towards Individuals With Different Sexual Orientations
(Womens Health & Action Research Centre, 2025) Deger, Vasfiye B.; Kacan, Havva
Study was planned in a descriptive design to examine how the empathic tendencies of students in the Faculty of Health Sciences affect their attitudes toward individuals who have different sexual orientations and was conducted with seven hundred and six students. The data collected online using the Student Information Form, Empathic Tendency Scale (ETS) and Attitudes Toward Lesbian and Gay Men Scale (ATLGS). Participants' mean scores were 62.98 +/- 18.79 on the ESS and 29.02 +/- 10.75 on the ATLGS. When the correlation between ETS and ATLGS scores was analyzed, a positive and moderate (p<0.05) correlation (r = 0.62) was found between ETS and ATLGS scores. These scores were moderate and the correlation between ETS and ATLGS scores was significant (F=438.585; p<0.05). Empathic disposition explained 38.3% of the total change in ATLGS level (R2=0.383) and increased ATLGS level (B=0.620). It was found that as students' empathic skills improved, their homophobic attitudes decreased.
Citation - WoS: 1
Citation - Scopus: 3
Beef and milk price links in Turkey
(2013) Saghaian Sayed; Özertan Gökhan; Tekgüç Hasan
This article addresses the recent beef price spikes in Turkey, using contemporary time-series analysis. The arguments point to the impact of low milk prices that led to liquidation of dairy herds and decline of beef prices initially due to the liquidation and increased meat supply, and subsequent price increases in the next year due to decreased supply. The results revealed that dairy herd liquidation had a delayed impact of a year to 18 months on farm, wholesale, and retail beef prices, Those effects wore off over a two-year time period.
The biochemical contents and antioxidant activities of four tanacetum L. taxa
(Progress in Nutrition, 2021) Emre, İrfan; Kürşat, Murat; Emre, Mustafa Yunus; Okkes, Yilmaz
The goal of the present study is to determine some of the biochemical compositions and antioxidant capacities of plant extracts in two endemic taxa for Turkey including T. cadmeum (Boiss.) Heywood subsp. orientale Grierson and T. nitens (Boiss. & Noë) Grierson together with T. polycephalum (L.) Sch.Bip subsp. argyrophyllum (K. Koch) Podlech, and T. parthenium (L.) Sch.Bip. The fatty acids were determined by using gas chromatography, while phenolics, lipid soluble vitamins and sterols were determined by using HPLC and radical scavenging activities, total phenolics, and FRAP were determined spectrophotometrically. It was found that Tanacetum taxa have palmitic acid (C16:0), and stearic acid (C18:0) as major saturated fatty acids and linoleic acid (C18:2 n6), α-linolenic acid (C18:3 n3) and oleic acid (C18:1 n9) as principal unsaturated fatty acids. It was found that Tanacetum taxa had more total unsaturated fatty acid contents (60.24±0.3%- 70.54±0.29%) than saturated fatty acids and it was found that T. parthenium had the highest total essential fatty acid composition (58.65%±0.59%). It was also reported that the omega6/omega3 ratio of T. cadmium subsp. orientale (8.22) differed from other taxa in this study. Also, the present study showed that Tanacetum had the lowest amount of lipid soluble vitamins. On the other hand, catechin was found to be the main polyphenolic compound in this study and it was determined that T. parthenium had the highest catechin (4479.1±5.71 µg/mg) and total phenolic contents (324.91±2.01 µgGAE/mg) in this study. Rutin was only determined in two endemic taxa T. cadmeum subsp. orientale (23±0.91 µg/mg), and T. nitens (5.7±0.27 µg/mg). Also, the naringenin, vanillic acid and caffeic acid amounts of the endemic T. cadmeum subsp. orientale and T. nitens were higher than other taxa in the study. In addition, it was determined that Tanacetum taxa had a high stigmasterol content. However, T. parthenium had a higher ergosterol content (271±2.36 µg/mg). It was also found that T. parthenium has highest D2, α-tocopherol, retinol acetate, ergosterol, and stigmasterol contents among the studied taxa. In addition, the study showed that Tanacetum taxa have strong DPPH and ABTS radical scavenging activities. It was concluded that Tanacetum taxa have potent antioxidant capacity.
Citation - WoS: 22
Citation - Scopus: 25
Biosorption of chlorophenoxy acid herbicides from aqueous solution by using low-cost agricultural wastes
(TAYLOR & FRANCIS INC, 2015) Okumus, Veysi; Celik, K. Serdar; Ozdemir, Sadin; Dundar, Abdurrahman; Kilinc, Ersin
The potential biosorption abilities of apple shell (AS), orange peel (OP), banana peel (BP), and millet waste (MW) as a bio-waste material to remove 2,4-dichlorophenoxy acetic acid (2,4-D), 2,4-dichlorophenoxy propanoic acid (2,4-DP), and 2,4-dichlorophenoxy butyric acid (2,4-DB) from aqueous solution were investigated in batch condition. Optimum biosorption conditions were determined as a function of contact time, pH of the solution, amount of biomass, and initial pesticide concentrations. The concentrations of the pesticides in the remaining solutions were simultaneously determined by high performance thin layer chromatography. Langmuir and Freundlich models were applied to describe the biosorption isotherm of the pesticides by agricultural wastes. The experimental adsorption data were fitted to Langmuir adsorption models (r(2)>0.99). It was found that adsorption of 2,4-DP was higher for all biosorbent. The highest maximum adsorption capacities of 2,4-DP were found as 40.08, 22.71, 33.26, and 45.45mg/g, respectively, for AS, OP, BP, and MW. Maximum adsorption capacity was obtained for 2,4-D as OP>MW>BP>AS, 2,4-DP as MW>AS>BP>OP, and 2,4-DB as OP>AS>BP>MW. From the results, it can be said that MW was an effective biosorbent for removal of 2,4-DP and OP was an effective biosorbent for removal of 2,4-D and 2,4-DB through the studied pesticides. Optimum biosorption conditions were determined as 60min of contact time, 100mg of biomass, AS at pH 6.0, OP at pH 6.0, MW at pH 7.0, and BP at pH 7.0. FT-IR was employed to understand the surface properties of biosorbents. According to the results, agricultural wastes have high adsorption capacity.

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