Eurasian Journal of Biological and Chemical Sciences最新文献_第2页

Longevity toxicity after chronic α -endosulfan exposure in wild population of Drosophila melanogaster Oregon-R (Diptera: Drosophilidae) 慢性α -硫丹暴露对黑腹果蝇俄勒冈- r野生种群的长寿毒性(双翅目:果蝇科)

Eurasian Journal of Biological and Chemical Sciences Pub Date : 2023-06-27 DOI: 10.46239/ejbcs.1271311

H. Uysal

{"title":"Longevity toxicity after chronic α -endosulfan exposure in wild population of Drosophila melanogaster Oregon-R (Diptera: Drosophilidae)","authors":"H. Uysal","doi":"10.46239/ejbcs.1271311","DOIUrl":"https://doi.org/10.46239/ejbcs.1271311","url":null,"abstract":"The rapid increase in the world population causes different problems such as nutrition and shelter. In this case, people brutally destroy arable land to shelter, and concretization is rapidly spreading. In addition, it is necessary to increase the amount of products to be taken from the limited agricultural areas for the food needs of the increasing population. The decrease in agricultural areas appears as a factor that reduces the amount of product taken from the unit area. In addition, weeds and especially insects reduce the yield, storage, and marketing quality of products obtained from restricted areas. This type of plant products can also be considered a disease carrier vector in the food chain. To increase the yield, various insecticides have been developed against target organisms such as insects and one of these insecticides is α-endosulfan. However, non-target organisms living in the same ecosystem can also be affected by all these insecticides. \u0000In the present study, it was researched whether the chronic α-endosulfan application has an effect on longevity in non-target organisms. According to the data obtained, α-endosulfan shortened the maximum and mean lifespan in both male and female populations of the Oregon-R wild strain of Drosophila melanogaster based on dose-time interaction. The shortening observed in life span for both populations was statistically significant (p","PeriodicalId":338101,"journal":{"name":"Eurasian Journal of Biological and Chemical Sciences","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123525293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Molecular modeling and thermodynamics of the interaction between DNA base pairs and radon originated ionizing alpha radiation DNA碱基对与氡电离辐射相互作用的分子模型和热力学

Eurasian Journal of Biological and Chemical Sciences Pub Date : 2023-06-27 DOI: 10.46239/ejbcs.1225044

Ç. Bayar

{"title":"Molecular modeling and thermodynamics of the interaction between DNA base pairs and radon originated ionizing alpha radiation","authors":"Ç. Bayar","doi":"10.46239/ejbcs.1225044","DOIUrl":"https://doi.org/10.46239/ejbcs.1225044","url":null,"abstract":"Ionizing alpha radiation (He2+) is known to adversely affect human DNA, but the biochemical reasoning is not clear yet. Relatedly, the present computational study was conducted investigating the effects of ionizing alpha radiation onto the Watson-Crick type DNA base pairs (nucleotides) Adenine-Thymine (AT’) and Guanine-Cytosine (GC’). The long-range cation (He2+)−π interactions were modeled for this purpose. A hybrid DFT functional of M06-2X was used with 6-31G(d,p) and 6-311G(d) basis sets at unrestricted level. The results showed that alpha radiation severely changed the considered base pairs’ hydrogen bond lengths and their interaction enthalpies and Gibbs free energies, however, the more drastic changes were observed in GC’ rather than AT’. This observation was also supported by frontier molecular orbital analyses performed. GC’ was more favored to form He2+ complexes (oxidize) than AT’ and consequently these complexes had more exothermic interaction energies (formed more spontaneously) than that of AT’. It could be highlighted that the molecular modeling proposed in this study would contribute to the elucidation of the uncertainty in this field.","PeriodicalId":338101,"journal":{"name":"Eurasian Journal of Biological and Chemical Sciences","volume":"277 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134316562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Contributions to the Knowledge of Aquatic Insect (Coleoptera) Fauna in Malatya Province 马拉提亚省水生昆虫(鞘翅目)区系知识的贡献

Eurasian Journal of Biological and Chemical Sciences Pub Date : 2023-06-27 DOI: 10.46239/ejbcs.1215756

G. Tasar

引用次数: 0

Purification of methylal/methanol mixtures by pervaporation process using ZIF-8 doped PEI membrane ZIF-8掺杂PEI膜渗透汽化纯化甲醛/甲醇混合物

Eurasian Journal of Biological and Chemical Sciences Pub Date : 2023-06-27 DOI: 10.46239/ejbcs.1226164

D. Ünlü

引用次数: 0

CT Imaging, Macroanatomical and Morphometric Analysis of Os penis in Brown Bear (Ursus arctos) 棕熊Os型阴茎的CT成像、宏观解剖及形态计量学分析

Eurasian Journal of Biological and Chemical Sciences Pub Date : 2023-06-27 DOI: 10.46239/ejbcs.1082216

S. Dalga, G. Kirbaş Doğan, Y. Akbulut, T. Çeti̇n, V. Kızılgöz

{"title":"CT Imaging, Macroanatomical and Morphometric Analysis of Os penis in Brown Bear (Ursus arctos)","authors":"S. Dalga, G. Kirbaş Doğan, Y. Akbulut, T. Çeti̇n, V. Kızılgöz","doi":"10.46239/ejbcs.1082216","DOIUrl":"https://doi.org/10.46239/ejbcs.1082216","url":null,"abstract":"The aim of this study is to reveal the macroscopic features of the brown bear (Ursus arctos) os penis (baculum), as well as its morphometric measurements with the help of computerized tomography and digital electronic caliper. The study material was obtained from an adult male brown bear weighing approximately 400 kg, which was brought to the Wildlife Protection and Rehabilitation Unit of Kafkas University and died as a result of a traffic accident in the Sarıkamış district of Kars. After the skin and soft tissues around the baculum were removed, they were kept in hydrogen peroxide for 2-3 hours. In the macroscopic examination, it was determined that the baculum was straight, close to the pen, except for a slight curve in the distal part, and ended with a small tubercle at the distal end. A small notch was found in the proximal part. In addition to the prominent sulcus urethralis in the ventral of the baculum, a short groove was also detected in its lateral. In addition to the prominent sulcus urethralis in the ventral of the baculum, a short groove was also detected in its lateral. A cartilage tissue of 11.08 mm in length and 4.67 mm in thickness was determined in the distal of the bone. In the morphometric measurements made with a digital electronic caliper, the length of the baculum was 148.95 mm, while the diameters were measured as 4.58 mm in the distal and 13.72 mm in the proximal, respectively. In computed tomography, baculum length was 148.84 mm, distal diameter length was 5.63 mm, and proximal diameter length was 13.12 mm. In addition, computed tomography measured the length of the cortex as 0.76 mm, the length of the medulla as 5.74 mm in the distal, and the cortex length of 0.77 mm and the medulla length of 5.32 mm in the proximal region. As a result, in this study, the macroanatomical and morphometric features of the brown bear baculum, which live in high altitude and cold climate conditions, were revealed.","PeriodicalId":338101,"journal":{"name":"Eurasian Journal of Biological and Chemical Sciences","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122252638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Morphological and molecular identification of fungi isolated from various habitat in Kirkuk city – Iraq 伊拉克基尔库克市不同生境真菌的形态和分子鉴定

Eurasian Journal of Biological and Chemical Sciences Pub Date : 2023-06-27 DOI: 10.46239/ejbcs.1276554

Yavuz Mahmut, Abdul-hameed M. HAMOODY, R. Abdulqader

引用次数: 0

Electrosprayed WPC/PEO Mats Coated to Fresh Figs 静电喷涂WPC/PEO垫涂新鲜无花果

Eurasian Journal of Biological and Chemical Sciences Pub Date : 2023-06-27 DOI: 10.46239/ejbcs.1214572

Murad Guli̇yev, E. Şen, Borane Çalışkan, G. Tetik, E. Tarhan, Ö. Tarhan

{"title":"Electrosprayed WPC/PEO Mats Coated to Fresh Figs","authors":"Murad Guli̇yev, E. Şen, Borane Çalışkan, G. Tetik, E. Tarhan, Ö. Tarhan","doi":"10.46239/ejbcs.1214572","DOIUrl":"https://doi.org/10.46239/ejbcs.1214572","url":null,"abstract":"Electrohydrodynamic atomization that is also defined as electrospraying is a method of producing mats that are composed of nano- or micro-scaled droplets. Unlike nanofibers that are obtained by electrospinning, the droplets are in spherical forms, and this is the result of the struggle between the applied electrostatic forces and the surface tension of the liquid (meaning polymer solution). This study aims to prepare and characterize electrosprayed biopolymer mats. The 1:2 blend of HWPC (hydrolyzed whey protein concentrate): PEO (poly (ethylene oxide)) is the polymer solution prepared in 2.5% aqueous acetic acid solvent. Physicochemical, morphological and structural analysis are applied to both solution and the electrosprayed mat. Increased viscosity in the protein solution by the addition of PEO enhanced the formation of regular beads observed through SEM images. Image J Visualization and Measurement Software was occupied to determine the diameter distributions of the droplets forming the mat. The mean diameter was found as 1.02±0.55 µm. ATR-FTIR spectroscopy analyses revealed remarkable structural changes in protein and interaction between protein and PEO in the electrosprayed mats. The HWPC/ PEO electrosprayed mat coating revealed one log decrease in the microbial load of fresh figs at the end of fourteen-day storage (4ºC). The findings of the presented research are promising for the application of this electrosprayed biopolymer mat for food coating purposes.","PeriodicalId":338101,"journal":{"name":"Eurasian Journal of Biological and Chemical Sciences","volume":"880 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122876576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multiresidue chromatographic method for the determination of antibiotic residues in honey by high-performance liquid chromatography with DAD detection 采用高效液相色谱- DAD检测法测定蜂蜜中抗生素残留

Eurasian Journal of Biological and Chemical Sciences Pub Date : 2022-10-23 DOI: 10.46239/ejbcs.1104606

Bouchra Rachi̇d, A. Jaber, Edmond Cheble

{"title":"Multiresidue chromatographic method for the determination of antibiotic residues in honey by high-performance liquid chromatography with DAD detection","authors":"Bouchra Rachi̇d, A. Jaber, Edmond Cheble","doi":"10.46239/ejbcs.1104606","DOIUrl":"https://doi.org/10.46239/ejbcs.1104606","url":null,"abstract":"Clandestinely, consumers may be exposed to antibiotic (ATB) residues in honey, which could pose a health concern. For the first time, the simultaneous determination of Florfenicol (FF), Penicillin G (PG), and Tetracycline is described in this paper. The multiresidual method was developed and optimized using high-performance liquid chromatography (HPLC) coupled to a diode array detector (DAD). These ATBs were separated on a C18 analytical column after a cleanup process followed by solid-phase extraction (SPE). For the first time, the chromatographic conditions were perfected. After the method validation process, the method was used to assess ATB residues in four Lebanese honey samples. ATBs were separated in less than 15 min with an isocratic elution using a mixture of 80 % potassium dihydrogen phosphate aqueous solution, and 20 % acetonitrile. The UV detection was performed at 350 nm for TC, 224 nm for FF, and 230 nm for PG. The proposed method was linear (R2 ≥ 0.996) within the concentration ranges of 0.7-17.5 mg.Kg 1 for the three compounds. Both intra- and inter-day precision, expressed as RSD, were ≤15 %. The method was subsequently successfully applied to analyze examined ATB residues in honey samples collected from Lebanese beekeeping. The method described could be a valuable tool to conduct a comprehensive survey of honey samples produced in Lebanon, especially in the lack of serious national oversight.","PeriodicalId":338101,"journal":{"name":"Eurasian Journal of Biological and Chemical Sciences","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122827242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Azol fonksiyonel gözenekli ve içi boş silika nanokompozitlerin karakterizasyonu ve antifungal uygulamaları

Eurasian Journal of Biological and Chemical Sciences Pub Date : 2022-10-23 DOI: 10.46239/ejbcs.1033670

Sedef KAPTAN USUL, Ayşe Aslan, Didem Özçimen

引用次数: 0

Phenolic compounds that modulate Multi Drug Resistance through inhibiting of P-glycoprotein encoded by gene ABCB1 通过抑制ABCB1基因编码的p糖蛋白调控多重耐药的酚类化合物

Eurasian Journal of Biological and Chemical Sciences Pub Date : 2022-10-16 DOI: 10.46239/ejbcs.1130645

Önder Yumrutaş, Pınar Yumrutaş

引用次数: 0