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Activity Patterns And Habitat Preference Of Eastern Hermann's Tortoise (Testudo Hermanni Boettgeri) In Serbia, Dragana Stojadinovic, Djuradj Milosevic, Katarina Sretic, Milica Cvetkovic, Tatjana Jovanovic, Bogdan Jovanovic, Jelka Crnobrnja Isailovic
Activity Patterns And Habitat Preference Of Eastern Hermann's Tortoise (Testudo Hermanni Boettgeri) In Serbia, Dragana Stojadinovic, Djuradj Milosevic, Katarina Sretic, Milica Cvetkovic, Tatjana Jovanovic, Bogdan Jovanovic, Jelka Crnobrnja Isailovic
Turkish Journal of Zoology
We analyzed variation in the distribution of eastern Hermann's tortoise (Testudo hermanni boettgeri) in a complex landscape consisting of both natural and human-altered habitats in a temperate climate region in Serbia. Our results indicated nonrandom distribution of tortoises within different habitat types with large and medium effect size for year and activity pattern, respectively. Additionally, the tortoises expressed relatively weak preference for habitats modified by human activity (e.g., vineyards, orchards, or gardens). The results suggested that these tortoises preferred some particular habitats more than others when performing specific activities. They also did not exhibit the same distribution pattern among habitats …
Human Activity Mediates Reciprocal Distribution And Niche Separationof Two Sympatric Mongoose Species On The Pothwar Plateau, Pakistan, Riaz Hussain, Tariq Mahmood, Faraz Akrim, Hira Fatima, Muhammad Sajid Nadeem
Human Activity Mediates Reciprocal Distribution And Niche Separationof Two Sympatric Mongoose Species On The Pothwar Plateau, Pakistan, Riaz Hussain, Tariq Mahmood, Faraz Akrim, Hira Fatima, Muhammad Sajid Nadeem
Turkish Journal of Zoology
Ecologically and morphologically similar species living in sympatry are predicted to partition their resources, although the resources themselves may vary in time and space and in relation to extrinsic factors. We studied two sympatric species of carnivores that vary in their distribution along a gradient of human activity, and one species exploits a wider range of food sources. We recorded the distribution of the small Indian mongoose (Herpestes javanicus) and the gray mongoose (Herpestes edwardsii) through reconnaissance surveys within high, medium, and low human activity areas of the Pothwar Plateau from November 2011 to June 2013. We found that the …
Unusual Winter Zooplankton Bloom In The Open Southern Adriatic Sea, Davor Lucic, Zrinka Ljubesic, Ivana Babic, Suncica Bosak, Ivona Cetinic, Ivica Vilibic, Hrvoje Mihanovic, Marijana Hure, Jakica Njire, Petra Lucic, Petar Kruzic
Unusual Winter Zooplankton Bloom In The Open Southern Adriatic Sea, Davor Lucic, Zrinka Ljubesic, Ivana Babic, Suncica Bosak, Ivona Cetinic, Ivica Vilibic, Hrvoje Mihanovic, Marijana Hure, Jakica Njire, Petra Lucic, Petar Kruzic
Turkish Journal of Zoology
The paper reports an unusual response of the microzooplankton community to oceanographic conditions observed during the winter of 2015 in the open southern Adriatic. Record-breaking nauplii abundance of 13,734 ind. m-3 was sampled for the open southern Adriatic by 50-\mum net sampling. This could be explained by (i) warmer-than-usual surface and intermediate ocean temperatures, (ii) higher precipitation that freshened and widened the surface layer, pushing saline Levantine Intermediate Water below a 400-m depth, and (iii) strong wind episodes that transported nutrients from the coastal zone to the open ocean and induced limited vertical mixing. Neritic tintinnids and viable photoautotrophs well …
Mating Behaviour And Its Relationship With Morphological Features In The Millipede Pachyiulus Hungaricus (Karsch, 1881) (Myriapoda, Diplopoda, Julida), Zvezdana Jovanovic, Sofija Pavkovic-Lucic, Bojan Ilic, Vukica Vujic, Boris Dudic, Slobodan Makarov, Luka Lucic, Vladimir Tomic
Mating Behaviour And Its Relationship With Morphological Features In The Millipede Pachyiulus Hungaricus (Karsch, 1881) (Myriapoda, Diplopoda, Julida), Zvezdana Jovanovic, Sofija Pavkovic-Lucic, Bojan Ilic, Vukica Vujic, Boris Dudic, Slobodan Makarov, Luka Lucic, Vladimir Tomic
Turkish Journal of Zoology
Although millipedes (Diplopoda) represent one of the most diverse classes of arthropods, data concerning details of their mating behaviour are very scarce. In this work, we explored mating behaviour of the European millipede Pachyiulus hungaricus under laboratory conditions, and its relationship with the size and shape of certain morphological traits. We conducted 3 types of behavioural tests: a mating arena test, a female choice test, and a male choice test. Premating behaviour was "sequenced" in 5 behavioural steps and, together with the duration of copulation, scored in all mating assays. Males were the more active sex in searching for mates, …
Macroinvertebrate Composition In The Metarhithral Zones Of The Munzur And Pülümür Rivers: A Preliminary Study, Zuhal Gülteki̇n, Rahmi̇ Aydin, Carola Winkelmann
Macroinvertebrate Composition In The Metarhithral Zones Of The Munzur And Pülümür Rivers: A Preliminary Study, Zuhal Gülteki̇n, Rahmi̇ Aydin, Carola Winkelmann
Turkish Journal of Zoology
The aim of this work was the determination of the macroinvertebrate community in the metarhithral zones of the Munzur and Pülümür rivers. This is the first documented research on macroinvertebrates in the metarhithral zone of the Munzur and Pülümür rivers in the region of the city of Tunceli. In total, 30 taxa of 9 orders of benthic invertebrates were recorded at the four sampling sites. Larvae of Taeniopteryx caucasica (Plecoptera), Oligoneuriella baskale, and Ecdyonurus dispar (Ephemeroptera) were recorded for the first time in the province of Tunceli.
Distribution And Conservation Of Acomys Cilicicus (Mammalia: Rodentia) In Turkey, Ortaç Çeti̇ntaş, Ferhat Matur, Mustafa Sözen
Distribution And Conservation Of Acomys Cilicicus (Mammalia: Rodentia) In Turkey, Ortaç Çeti̇ntaş, Ferhat Matur, Mustafa Sözen
Turkish Journal of Zoology
Acomys cilicicus is endemic to Turkey and known from a very restricted area. The exact distribution of the species was not known up to now and the IUCN status of the species was Data Deficient (DD). To determine the exact distribution area of the species, 39 localities within the historical distribution were surveyed by using 3243 Sherman traps between 2013 and 2016. Turkish spiny mouse samples were obtained from 14 of these 39 localities and the current distribution of the species was determined. We found that the Turkish spiny mouse has two isolated populations in the area between Silifke and …
A Case Of Limb Regeneration In A Wild Adult Podarcis Lilfordi Lizard, Alex Cortada, Antigoni Kaliontzopoulou, Joana Mendes, Miguel A. Carretero
A Case Of Limb Regeneration In A Wild Adult Podarcis Lilfordi Lizard, Alex Cortada, Antigoni Kaliontzopoulou, Joana Mendes, Miguel A. Carretero
Turkish Journal of Zoology
We report here a case of spontaneous limb regeneration in a wild Podarcis lilfordi lizard from the Balearic Islands. The animal had lost a hind limb, which regenerated posteriorly into a tail-like appendage. Despite not representing a functional regeneration, the growth of this structure after limb amputation suggests that survival of the individual may have been favored by the less restrictive conditions prevailing in insular environments. Nevertheless, such cases are extremely rare in lizards, with no reported cases over the last 60 years.
Prolonged Association Between A Pair And A Related Male In Breeding Whooper Swans (Cygnus Cygnus), Krzysztof Dudzik, Michal Polakowski, Michal Ciach
Prolonged Association Between A Pair And A Related Male In Breeding Whooper Swans (Cygnus Cygnus), Krzysztof Dudzik, Michal Polakowski, Michal Ciach
Turkish Journal of Zoology
Waterfowl (Anatidae) are a group of birds in which parental care is performed by both parents (a pair) or, less often, by females only. Alternative social systems in this group have been recorded only occasionally. This paper describes three unusual cases of prolonged association between a pair and an additional male (the offspring or sibling of the primary pair) in breeding Whooper Swans (Cygnus cygnus). In all instances the three birds displayed no antagonistic behaviour towards family members, participated in territorial defence, and bred successfully. These cases are unusual in light of what is currently known about the social system …
Description Of A New Species Of Lysiteles Simon From Guizhou Province,China (Araneae: Thomisidae), Hao Yu, Fengming Li, Zhenyu Jin
Description Of A New Species Of Lysiteles Simon From Guizhou Province,China (Araneae: Thomisidae), Hao Yu, Fengming Li, Zhenyu Jin
Turkish Journal of Zoology
A new species of the genus Lysiteles Simon, 1895, L. bicuspidatus sp. nov., is described from Guizhou Province, China. Detailed morphological characters, a distribution map, photos, and illustrations of the habitus and genital organs are given.
Dysderocrates Tanatmisi Sp. N., A New Spider Species From Turkey (Araneae, Dysderidae), Gi̇zem Kiliç, Recep Sulhi̇ Özkütük
Dysderocrates Tanatmisi Sp. N., A New Spider Species From Turkey (Araneae, Dysderidae), Gi̇zem Kiliç, Recep Sulhi̇ Özkütük
Turkish Journal of Zoology
A new species, Dysderocrates tanatmisi sp. n., is described on the basis of both sexes from the Mediterranean region of Turkey. Herein, we present the morphological and diagnostic characters and illustrations of the genitalia of both the male and female members of this species.
First Results Of A Faunistic Survey On The Orthoptera Of Jadovnik Mountain, Southwestern Serbia, With Data On The Calling Songs Of Some Bush Cricket Species, Slobodan Ivkovic
First Results Of A Faunistic Survey On The Orthoptera Of Jadovnik Mountain, Southwestern Serbia, With Data On The Calling Songs Of Some Bush Cricket Species, Slobodan Ivkovic
Turkish Journal of Zoology
During field trips conducted in 2015 and 2016 at 22 different localities on Jadovnik Mountain, 68 species were recorded. The calling songs of 4 species were studied in detail, and a new song type of Isophya clara was described. Metrioptera brachyptera and Locusta migratoria are rerecorded for the first time in 40 years for the Serbian fauna.
Three New Truncatelloidean Gastropod Species From Turkey(Caenogastropoda: Littorinimorpha), Mustafa Emre Gürlek
Three New Truncatelloidean Gastropod Species From Turkey(Caenogastropoda: Littorinimorpha), Mustafa Emre Gürlek
Turkish Journal of Zoology
New species of Bithyniidae (Pseudobithynia adiyamanensis sp. nov.), Hydrobiidae (Pseudorientalia ceriti sp. nov.), and Bythinellidae (Bythinella yerlii sp. nov.) are described from three different locations in Turkey. Samples were collected in 2013 and 2016 and the shell and male genital tract morphology of the new species were studied. All of these new taxa were compared to congeners that live in Turkey and adjacent countries.
Contribution To The Knowledge Of The Molluscan Fauna Of Kuşadası Bay (Aegean Sea), Banu Bi̇tli̇s, Bi̇lal Öztürk, Alper Doğan
Contribution To The Knowledge Of The Molluscan Fauna Of Kuşadası Bay (Aegean Sea), Banu Bi̇tli̇s, Bi̇lal Öztürk, Alper Doğan
Turkish Journal of Zoology
The present study was carried out in order to determine the molluscan species distributed in Kuşadası Bay. The investigated material was collected from different biotopes at 11 stations at varying depths between 0 and 180 m; it was sampled in the years 2000 and 2005 by using a van Veen grab and a dredge, and randomly by snorkeling. The study resulted in 134 molluscan species determined in Kuşadası Bay. Among them, Septifer cumingii Recluz, 1849 and Mytilaster solidus Monterosato, 1883 are new records for the Aegean coast of Turkey. Of the identified species, Bittium latreillii (Payraudeau, 1826) (1401 ind.), Musculus …
Antioxidant Defenses In Three Vesper Bats(Chiroptera: Vespertilionidae) During Hibernation, Ekaterina Antonova, Viktor Ilyukha, Svetlana Sergina, Evgeniy Khizhkin, Vladimir Belkin, Alina Yakimova, Artem Morozov
Antioxidant Defenses In Three Vesper Bats(Chiroptera: Vespertilionidae) During Hibernation, Ekaterina Antonova, Viktor Ilyukha, Svetlana Sergina, Evgeniy Khizhkin, Vladimir Belkin, Alina Yakimova, Artem Morozov
Turkish Journal of Zoology
Hibernation of bats is characterized by considerable changes in the oxygen supply during the torpor-arousal cycles. The purpose of this study was to examine the antioxidant defenses in tissues of the hibernating bats ( Eptesicus nilssonii , Myotis brandtii , and Plecotus auritus ), attempting to relate the tissue antioxidant protection with the ecophysiological characteristics of the studied species. We found that the superoxide dismutase (SOD) activity in the heart and the catalase activity in the skeletal muscle were higher in E. nilssonii than in P. auritus and in M. brandtii. In comparison with studied hibernating bats, P. auritus had …
Cytogenetic Characteristic Of The Caucasian Pygmy Shrew (Sorex Volnuchini) And Levant Mole (Talpa Levantis) (Mammalia: Eulipotyphla) In Northern Anatolia, Turkey, Ahmet Yesari̇ Selçuk, Haluk Kefeli̇oğlu
Cytogenetic Characteristic Of The Caucasian Pygmy Shrew (Sorex Volnuchini) And Levant Mole (Talpa Levantis) (Mammalia: Eulipotyphla) In Northern Anatolia, Turkey, Ahmet Yesari̇ Selçuk, Haluk Kefeli̇oğlu
Turkish Journal of Zoology
The karyotype of the Caucasian pygmy shrew (Sorex volnuchini) consists of 2n = 40 NFa = 54. The X chromosome is metacentric and the Y chromosome is large acrocentric. In the chromosome set, there are six metacentric/submetacentric, one large subtelocentric, one small metacentric, and 11 acrocentric autosomal chromosome pairs. C-negative and C-positive heterochromatin band regions are determined in the karyotype. NORs were localized in the secondary constriction in autosomal pair no. 17 of Sorex volnuchini. The diploid number of the Levant mole (Talpa levantis) is 2n = 34, NFa = 64. The X chromosome is medium size and metacentric. The …
A New Species Of The Genus Camponotus (Mayr) (Hymenoptera, Formicidae) From Turkey, Celal Karaman, Kadri̇ Kiran, Volkan Aksoy, Yilmaz Çamlitepe
A New Species Of The Genus Camponotus (Mayr) (Hymenoptera, Formicidae) From Turkey, Celal Karaman, Kadri̇ Kiran, Volkan Aksoy, Yilmaz Çamlitepe
Turkish Journal of Zoology
A new species, Camponotus praegracilis Karaman et Kiran sp. nov. is described; it is a member of the subgenus Tanaemyrmex, from the most species-rich ant genus in Turkey. Some biological notes for the new species are also given. Diagnostic characters of the new species, distinguishing the new species from the most similar species, are also described.
Mitochondrial Evidence Indicates A Shallow Phylogeographic Structurefor Jaculus Blanfordi (Murray, 1884) Populations (Rodentia: Dipodidae), Ekaterina Melnikova, Morteza Naderi
Mitochondrial Evidence Indicates A Shallow Phylogeographic Structurefor Jaculus Blanfordi (Murray, 1884) Populations (Rodentia: Dipodidae), Ekaterina Melnikova, Morteza Naderi
Turkish Journal of Zoology
Our study was performed on the phylogeographic structure of Blanford's jerboa (Jaculus blanfordi (Murray, 1884)) collected from nine localities in Iran, Turkmenistan, and Uzbekistan and was based on mitochondrial evidence indicating a slight phylogeographic divergence among the populations. We aimed to amplify two frequently used mitochondrial markers, cytochrome b (cyt b) and cytochrome c oxidase subunit I (COI) fragments, from 33 specimens obtained from the abovementioned countries. Our phylogeographic analyses uncovered two distinct groups, thus supporting the presence of two subspecies: J. b. blanfordi in Iran and J. b. turcmenicus in northern Turkmenistan and Uzbekistan. Finally, we discuss the intraspecies …
Adsorption Isotherm Modeling Of Carbendazim And Flumetsulam Onto Homoionic-Montmorillonite Clays: Comparison Of Linear And Nonlinear Models, Yassine El Maataoui̇, Mohamadine El M'Rabet, Abdelkrim Maaroufi, Hassan Oudda, Abdelmalek Dahchour
Adsorption Isotherm Modeling Of Carbendazim And Flumetsulam Onto Homoionic-Montmorillonite Clays: Comparison Of Linear And Nonlinear Models, Yassine El Maataoui̇, Mohamadine El M'Rabet, Abdelkrim Maaroufi, Hassan Oudda, Abdelmalek Dahchour
Turkish Journal of Chemistry
This study deals with the adsorption of two pesticides, carbendazim and flumetsulam, from aqueous solutions onto four homoionic-montmorillonite clays (Ag$^{+}$, Zn$^{2+}$, Cu$^{2+}$, and H$^{+})$. Equilibrium adsorption isotherm data were analyzed using Freundlich, Dubinin-Radushkevich, and Temkin isotherms. Linear and nonlinear fitting methods were compared to determine the best-fitting isotherms for the experimental data. Three error analysis methods were used to evaluate the data for each method: the coefficient of determination (R$^{2})$, sum of squared errors (SSE), and chi-square test ($\chi^{2})$. Equilibrium adsorption isotherms exhibited that the carbendazim adsorption mainly involved cation exchange with homoionic-montmorillonite adsorbents. However, for flumetsulam, the main mechanisms …
A Simple And Effective Method For Determination Of The Antithyroid Drug Carbimazole Using Ruthenium Trichloride, Mukul Sharma, Afraim Koty, Abdul Jabbar Al Rajab
A Simple And Effective Method For Determination Of The Antithyroid Drug Carbimazole Using Ruthenium Trichloride, Mukul Sharma, Afraim Koty, Abdul Jabbar Al Rajab
Turkish Journal of Chemistry
An accurate, precise, and simple spectrophotometric method is proposed for the determination of the antithyroid drug carbimazole using ruthenium(III) chloride. This method is based on the formation at room temperature of a stable yellow-colored complex with λ$_{max}$ 370 nm. The method has a Beer's law range of 7.81 to 1.95 $\times $ 10$^{2}$ $\mu $g mL$^{-1}$, molar absorptivity coefficient $\varepsilon =$ 1.519 $\times $ 10$^{3}$ L mol$^{-1}$ cm$^{-1}$, and correlation coefficient of 0.997. The metal:ligand (M:L) ratio of the complex was confirmed by the mole ratio and Job's method of continuous variation, suggesting a 1:2 stoichiometry. The formed carbimazole:Ru(III) complex …
Ultrasound-Assisted Surfactant/Ionic Liquid Aqueous Two-Phase System Extraction Prior To High Performance Liquid Chromatography For The Determination Of Tetracyclines In Milk And Honey Samples, Hayri̇ye Mi̇ne Antep, Taşkin Mumcu, Kami̇l Bostanci, Serap Seyhan Bozkurt, Melek Merdi̇van
Ultrasound-Assisted Surfactant/Ionic Liquid Aqueous Two-Phase System Extraction Prior To High Performance Liquid Chromatography For The Determination Of Tetracyclines In Milk And Honey Samples, Hayri̇ye Mi̇ne Antep, Taşkin Mumcu, Kami̇l Bostanci, Serap Seyhan Bozkurt, Melek Merdi̇van
Turkish Journal of Chemistry
In this work, an ultrasonic-assisted surfactant/ionic liquid aqueous two-phase system (ATPS) extraction method was developed to extract six tetracycline antibiotics from food samples before their chromatographic determination using high performance liquid chromatography. The ATPS was formed with 1-allyl-3-methyl-imidazolium bromide, Triton X-100, and dipotassium hydrogen phosphate. The parameters including type and amount of surfactant, ionic liquid and salt, pH of sample solution, and sonication time were optimized. Under the optimized conditions, linear calibration curves of the six tetracyclines were obtained in the range of 10--500 $\mu $g L$^{-1}$ with $>$ r$^{2} =$ 0.990 (n $=$ 9). The proposed green analytical …
A Promising Materials Approach To Combatting Renal Hyperphosphatemia: Fe(Ii)-Montmorillonites, Xiaotong Yuan, Dawei Qin, Min Qiao, Gang Liu, Hongxin Li, Xia Niu
A Promising Materials Approach To Combatting Renal Hyperphosphatemia: Fe(Ii)-Montmorillonites, Xiaotong Yuan, Dawei Qin, Min Qiao, Gang Liu, Hongxin Li, Xia Niu
Turkish Journal of Chemistry
The objective of the current effort was to determine the efficacy of Fe(II)-montmorillonite (Fe(II)-MMT) as an adjuvant for specific targeted adsorption of phosphate. Specifically, Fe(II)-MMT was studied to combat hyperphosphatemia and anemia arising from chronic renal failure. The adsorption of phosphate over time, pH, and initial concentration was studied. The systems were characterized by X-ray diffraction (XRD), Raman, and zeta potential. The experimental results demonstrated the adsorption time was set to 140 min to achieve maximum adsorption efficiency. It was thus found that the maximum adsorption was at pH 3.0. In addition, it reached equilibrium when the initial phosphate concentration …
Investigation Of The Effects Of Purification And Characterization Of Turkey (Meleagris Gallopavo) Liver Mitochondrial Thioredoxin Reductase Enzyme And Some Metal Ions On Enzyme Activity, Yusuf Temel, Ö. İrfan Küfrevi̇oğlu, Mehmet Çi̇ftci̇
Investigation Of The Effects Of Purification And Characterization Of Turkey (Meleagris Gallopavo) Liver Mitochondrial Thioredoxin Reductase Enzyme And Some Metal Ions On Enzyme Activity, Yusuf Temel, Ö. İrfan Küfrevi̇oğlu, Mehmet Çi̇ftci̇
Turkish Journal of Chemistry
The thioredoxin system, found in all living creatures, consists of thioredoxin protein (Trx), thioredoxin reductase enzyme (TrxR), and NADPH. In this study, turkey liver mitochondrial TrxR enzyme with 3.07 EU $\times $ mg$^{-1}$ specific activity was purified 990-fold in a yield of 2.05{\%} using 2',5'-ADP Sepharose 4B affinity chromatography. The purity of the enzyme was measured and the molecular weight of its subunits was determined to be 45.5 kDa by SDS-PAGE. The molecular mass of the enzyme's natural state was found to be 88 kDa using Sephadex-G 150 gel filtration chromatography. In addition, characteristic and kinetic properties of the enzyme …
Isocoumarins And 3,4-Dihydroisocoumarins, Amazing Natural Products: A Review, Aisha Saddiqa, Osman Çakmak, Muhammad Usman
Isocoumarins And 3,4-Dihydroisocoumarins, Amazing Natural Products: A Review, Aisha Saddiqa, Osman Çakmak, Muhammad Usman
Turkish Journal of Chemistry
The isocoumarins are naturally occurring lactones that constitute an important class of natural products exhibiting an array of biological activities. A wide variety of these lactones have been isolated from natural sources and, due to their remarkable bioactivities and structural diversity, great attention has been focused on their synthesis. This review article focuses on their structural diversity, biological applications, and commonly used synthetic modes.
Synthesis, Characterization, And Antimicrobial Activities Of Novel Monosaccharide-Containing Schiff Base Ligands, Fatma Telli̇, Stephen Thomas Astley, Azi̇ze Yeşi̇m Salman
Synthesis, Characterization, And Antimicrobial Activities Of Novel Monosaccharide-Containing Schiff Base Ligands, Fatma Telli̇, Stephen Thomas Astley, Azi̇ze Yeşi̇m Salman
Turkish Journal of Chemistry
Four new chiral Schiff base ligands (3a-4a, 3b-4b) have been prepared using aminoisopropylidene derivatives of glucose and aminochloralose derivatives of mannose. The synthesized compounds 1 and 2 were characterized by nuclear magnetic resonance ($^{1}$H and $^{13}$C NMR), Fourier transform infrared spectroscopy (FTIR), UV/visible spectroscopy, and elemental analysis. A total of eight Schiff base compounds (3a-6a, 3b-6b) were tested for antimicrobial activity against Escherichia coli ATCC 12228, Staphylococcus aureus ATCC 6538, Klebsiella pneumoniae CCM 2318, Pseudomonas aeruginosa ATCC 27853, Salmonella typhimurium CCM 5445, Enterococcus faecalis ATCC 29212, Bacillus subtilis ATCC 6633, and Candida albicans ATCC 10239 and exhibited a range of …
Development Of A Sample Preparation Strategy For The Determination Of Tungsten In Soil Samples By Inductively Coupled Plasma Mass Spectrometry Using A Response Surface Methodology, Ümran Seven Erdemi̇r
Development Of A Sample Preparation Strategy For The Determination Of Tungsten In Soil Samples By Inductively Coupled Plasma Mass Spectrometry Using A Response Surface Methodology, Ümran Seven Erdemi̇r
Turkish Journal of Chemistry
An alternative rapid digestion method has been developed for the determination of tungsten (W) in soil samples using fractionation studies and response surface methodology. The digestion method using the Kjeldahl instrument was applied to samples, and soluble tungsten was determined via inductively coupled plasma mass spectrometry. Digestion parameters were selected depending on the results of fractionation studies and optimized using a four-factor and five-level central composite design. The contributions of the phosphoric acid concentration (X$_{1})$, digestion temperature (X$_{2})$, digestion time (X$_{3})$, and hydrochloric acid concentration (X$_{4})$ were evaluated for the determination of W from samples in which its levels were …
Synthesis And Antinociceptive Activities Of Some Novel Benzimidazole-Piperidine Derivatives, Ümi̇de Demi̇r Özkay, Özgür Devri̇m Can, Nazli Turan, Betül Kaya Çavuşoğlu
Synthesis And Antinociceptive Activities Of Some Novel Benzimidazole-Piperidine Derivatives, Ümi̇de Demi̇r Özkay, Özgür Devri̇m Can, Nazli Turan, Betül Kaya Çavuşoğlu
Turkish Journal of Chemistry
In this study, a series of benzimidazole-piperidine derivatives were synthesized with the objective of developing potent antinociceptive agents. Some 2-(4-substituted-phenyl)-1-[2-(piperidin-1-yl)ethyl]-1$H$-benzimidazole derivatives were obtained by microwave-supported reaction of an appropriate 2-(4-substituted-phenyl)-1$H$-benzimidazole with 2-(piperidine-1-yl)ethyl chloride. The chemical structures of the compounds were elucidated by FT-IR, $^{1}$H NMR, $^{13}$C NMR, and HRMS spectral data. Antinociceptive activity was assessed by conducting hot-plate, paw-pressure, and formalin tests. Morphine (5 mg/kg, i.p) was used as a reference drug. Among the tested compounds 2a-2d and 2f-2h (10 mg/kg) increased the maximum possible effect (MPE) % values calculated for the hot-plate and paw-pressure tests and decreased the paw …
A New Method For Simultaneous Determination Of Trace Amounts Of Cu(Ii) And Ni(Ii) Ions By Preconcentration And Spectrophotometric Analysis, Berri̇n Topuz, Şennur Merve Adanur, Arda Yalçuk
A New Method For Simultaneous Determination Of Trace Amounts Of Cu(Ii) And Ni(Ii) Ions By Preconcentration And Spectrophotometric Analysis, Berri̇n Topuz, Şennur Merve Adanur, Arda Yalçuk
Turkish Journal of Chemistry
Immediate preconcentration and spectrophotometric methods have been developed for the determination of trace amounts of cupric ion (Cu(II)) and nickel ion (Ni(II)) through a solid phase extraction with XAD-4-N,N'-bis-(salicylidene) cyclohexanediamine (XAD-4-SCHD) resin and a complex color reaction of the ions with 2,6-dimethyl-morpholine dithiocarbamate (DMMDTC) in Triton X-100 media. A high preconcentration factor of 125 was achieved. The spectrophotometric method was based on the measurements of the absorption of colored chelates of ions complexing with DMMDTC, and the adsorptions of the complex solutions were measured at their maximum absorption peaks at 460 and 328 nm for Cu(II) and Ni(II) ions, respectively. …
Removal Of Pb(Ii) And Cd(Ii) From Aqueous Solution Using Alkaline-Modified Pumice Stone Powder (Psp): Equilibrium, Kinetic, And Thermodynamic Studies, Vivian Jonasi, Kaina Matina, Upenyu Guyo
Removal Of Pb(Ii) And Cd(Ii) From Aqueous Solution Using Alkaline-Modified Pumice Stone Powder (Psp): Equilibrium, Kinetic, And Thermodynamic Studies, Vivian Jonasi, Kaina Matina, Upenyu Guyo
Turkish Journal of Chemistry
Adsorption processes of Cd(II) and Pb(II) from aqueous solutions onto pumice stone powder (PSP) were investigated in batch mode. The influences of solution pH, contact time, adsorbent dosage, initial metal (M) concentration, and temperature on adsorption process were investigated. The kinetic and isotherm data were analysed using different model equations. The adsorption process was consistent with the Langmuir model for both metal ions with high R$^{2}$ and low $\chi^{2}$ values for both Pb(II) and Cd(II). The maximum monolayer adsorption capacities were 28.09 and 27.17 mg g$^{-1}$ for Pb(II) and for Cd(II), respectively. The pseudo-second order kinetic model explained the kinetic …
Adsorption Of Cu(Ii) On Three Adsorbents, Fe$_{3}$O$_{4}$/Ni/Ni$_{X}$B Nanocomposite, Carob (\Textit{Ceratonia Siliqua}), And Grape Seeds: A Comparative Study, Tüli̇n Deni̇z Çi̇ftçi̇
Adsorption Of Cu(Ii) On Three Adsorbents, Fe$_{3}$O$_{4}$/Ni/Ni$_{X}$B Nanocomposite, Carob (\Textit{Ceratonia Siliqua}), And Grape Seeds: A Comparative Study, Tüli̇n Deni̇z Çi̇ftçi̇
Turkish Journal of Chemistry
A novel adsorbent Fe$_{3}$O$_{4}$/Ni/Ni$_{x}$B nanocomposite was synthesized and used for the adsorption of copper. Moreover, natural adsorbents carob and grape seeds were used for this purpose. The surfaces and the elemental compositions of the adsorbents were characterized by SEM-EDX. The zero point charges of pH of Fe$_{3}$O$_{4}$/Ni/Ni$_{x}$B nanocomposite, carob, and grape seeds were found as 8.4, 6.0, and 5.6, respectively. The Langmuir, Freundlich, and Dubinin--Radushkevich isotherm models were used for the identification of the mechanism of the adsorption. The adsorptions of Cu(II) on the three adsorbents were well fitted to the Langmuir isotherm. The maximum adsorption capacities obtained from the …
Downregulation Of Cystathionine γ Lyase And Endothelial Nitric Oxide Synthase And Reduced Responsiveness Of α1a Adrenergic Receptors In The Kidneys Of Left Ventricular Hypertrophied Wistar Kyoto Rats, Ashfaq Ahmad, Munavvar Abdul Sattar, Hassaan Anwer Rathore, Safia Akhtar Khan, Nor Azizan Abdullah, Edward James Johns
Downregulation Of Cystathionine γ Lyase And Endothelial Nitric Oxide Synthase And Reduced Responsiveness Of α1a Adrenergic Receptors In The Kidneys Of Left Ventricular Hypertrophied Wistar Kyoto Rats, Ashfaq Ahmad, Munavvar Abdul Sattar, Hassaan Anwer Rathore, Safia Akhtar Khan, Nor Azizan Abdullah, Edward James Johns
Turkish Journal of Biology
This article explores the relationship between the renal expression of cystathionine gamma lyase (CSE) and endothelial nitric oxide synthase (eNOS) and the responsiveness of α1A adrenergic receptors in the renal vasculature following left ventricular hypertrophy (LVH) in rats. LVH was established by administering isoprenaline (5 mg/kg, 5 injections subcutaneously, 72 h apart) with 62 mg/L caffeine in drinking water for 2 weeks. Renal vasoconstrictor responses were measured using local administration of adrenergic agonists noradrenaline (NA), phenylephrine (PE), and methoxamine (ME) and the selective α1A adrenergic antagonist 5-methylurapidil (5-MeU). Mean arterial blood pressure was higher (144 ± 9 vs. 116 ± …