Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

2012

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 17911 - 17940 of 22916

Full-Text Articles in Entire DC Network

The Effect Of Knk437, A Heat Shock Protein Inhibitor, On Angiogenesis Of Endothelial Cells, Emel Şahi̇n, Mehmet Şahi̇n, Saadet Gümüşlü Jan 2012

The Effect Of Knk437, A Heat Shock Protein Inhibitor, On Angiogenesis Of Endothelial Cells, Emel Şahi̇n, Mehmet Şahi̇n, Saadet Gümüşlü

Turkish Journal of Medical Sciences

Aim: Hyperthermia is an effective therapy for cancer and tumor angiogenesis. However, the development of thermotolerance is an important problem. We aimed to investigate the effects of KNK437 and quercetin on angiogenesis and thermotolerance in endothelial cells (ECs). Materials and methods: ECs were grown in EGM-2 medium. ECs were preincubated with KNK437 or quercetin and then treated with single and fractionated hyperthermia. Tube formation assay on Matrigel Matrix was performed in these cells to investigate angiogenesis. Results: Tube formation was suppressed in cells that were treated with KNK437 and quercetin at 37 °C. Single hyperthermia (45 °C for 1 h) …

Go to article

Biochemical And Structural Changes Of The Kidney In Mice Exposed To Phenol, Zahra Tootian, Ali Louei Monfared, Simin Fazelipour, Mohammad Taghi Shybani, Fatemeh Rouhollah, Farhang Sasani, Ebrahim Molaemi Jan 2012

Biochemical And Structural Changes Of The Kidney In Mice Exposed To Phenol, Zahra Tootian, Ali Louei Monfared, Simin Fazelipour, Mohammad Taghi Shybani, Fatemeh Rouhollah, Farhang Sasani, Ebrahim Molaemi

Turkish Journal of Medical Sciences

Aim: To investigate the histology and function of the kidney in mice exposed to different concentrations of phenol through the gavage method for 10 consecutive days. Materials and methods: Forty female BALB/c mice were selected and randomly divided into 1 control group and 3 experimental groups. The control group was administered distilled water through the gavage method, while the experimental groups received daily doses of 80, 180, and 320 mg/kg of phenol, respectively. After 10 days, blood samples were collected and the sera were analyzed biochemically. Renal tissue samples were also taken and histopathological changes of the kidneys were examined …

Go to article

Effects Of Depression And Life Factors On Social Network Score In Elderly People In Çankaya, Ankara, Meti̇n Canbal, İrfan Şencan, Ayfer Şahi̇n, Şeyda Kunt, Umut Yücel Çavuş, Oğuz Teki̇n Jan 2012

Effects Of Depression And Life Factors On Social Network Score In Elderly People In Çankaya, Ankara, Meti̇n Canbal, İrfan Şencan, Ayfer Şahi̇n, Şeyda Kunt, Umut Yücel Çavuş, Oğuz Teki̇n

Turkish Journal of Medical Sciences

Aim: Social interaction is an important factor in the physical and mental health of seniors. This study was performed in order to evaluate the effects of depression and life factors on the social networking scores of elderly people. Materials and methods: Tests for the Lubben Social Network Scale (LSNS) and Geriatric Depression Scale (GDS) were given to 116 elderly people (>=60 years) in the Çankaya area of Ankara between March and May of 2010. The effects of life factors and GDS scores on LSNS scores were explored. Results: Among the study group, 46.5% of the individuals were male and …

Go to article

Effect Of Prenatal Exposure To Cigarette Smoke On The Conduction Of Sensory Nerve Fibers In The Rat, Jumah Shakhanbeh Jan 2012

Effect Of Prenatal Exposure To Cigarette Smoke On The Conduction Of Sensory Nerve Fibers In The Rat, Jumah Shakhanbeh

Turkish Journal of Medical Sciences

Aim: To investigate the effect of prenatal exposure to cigarette smoke (CS) on the conduction of sensory nerve fibers in the adult rat offspring. Materials and methods: Pregnant rats were exposed to CS by inhalation during the gestation period. The saphenous nerve in the adult offspring was exposed in vivo, and the conduction parameters of the threshold, maximum strength of stimulation, conduction velocity, and amplitude of compound action potentials (CAPs) of A\alpha\beta-, A\delta-, and C-fibers were examined. Results: Prenatal exposure to CS induced significant reduction (P < 0.005) in the peak amplitude of CAPs of A\alpha\beta- and A\delta-fibers. The conduction velocity of A\alpha\beta-fibers and C-fibers was significantly (P < 0.025-0.05) increased after prenatal exposure to CS. Conclusion: Prenatal exposure to CS attenuates the conduction of sensory nerve fibers in the rat saphenous nerve.

Go to article

Evaluation Of The Antibacterial Activity Of Zataria Multiflora Boiss., Rhus Coriaria L. (Sumac), Mentha Piperita L., And Ocimum Basilicum L. Extracts On Brucella Strains Isolated From Brucellosis Patients, Yousef Motaharinia, Mohammad Ali Rezaee, Mohammad Saleh Hazhir, Farid Zandi, Reza Shapouri, Mohammad Saied Hakhamaneshi, Ahmad Rashidi, Mohammad Reza Rahmani Jan 2012

Evaluation Of The Antibacterial Activity Of Zataria Multiflora Boiss., Rhus Coriaria L. (Sumac), Mentha Piperita L., And Ocimum Basilicum L. Extracts On Brucella Strains Isolated From Brucellosis Patients, Yousef Motaharinia, Mohammad Ali Rezaee, Mohammad Saleh Hazhir, Farid Zandi, Reza Shapouri, Mohammad Saied Hakhamaneshi, Ahmad Rashidi, Mohammad Reza Rahmani

Turkish Journal of Medical Sciences

Since brucellosis has been called a chronic illness and treatment of patients infected with this bacterium has not been successful, the present study aim ed to evaluate the effects of several medicinal plant extracts on clinical Brucella strains. Materials and methods: First, Brucella strains were isolated from brucellosis patients. Then an antibiotic resistance assay was performed for these strains, while the antibacterial activity of the above-mentioned extracts was evaluated. Results: After performing accurate evaluations, the obtained results showed that all of the isolated Brucella strains were sensitive to tetracycline, doxycycline, and gentamicin, and the rates of antibiotic resistance to rifampin …

Go to article

Antinociceptive Activity Of Some Scorzonera L. Species, Özlem Bahadir Acikara, Hayri̇ye Gülçi̇n Saltan, Hanefi̇ Özbek Jan 2012

Antinociceptive Activity Of Some Scorzonera L. Species, Özlem Bahadir Acikara, Hayri̇ye Gülçi̇n Saltan, Hanefi̇ Özbek

Turkish Journal of Medical Sciences

Scorzonera species are mainly used to relieve pain in Turkish traditional medicine. The roots of Scorzonera latifolia (Fisch. & Mey) DC., S. tomentosa L., S. suberosa C.Koch subsp. suberosa, and S. mollis M.Bieb. subsp. szowitzii collected from different regions of Anatolia, and yakı sakızı, which is prepared by drying the latex obtained from the roots of Scorzonera latifolia, were evaluated for their antinociceptive activities. Materials and methods: For antinociceptive evaluation, Scorzonera latifolia (Fisch. & Mey) DC., S. tomentosa L., S. suberosa C.Koch subsp. suberosa, S. mollis M.Bieb. subsp. szowitzii, and yakı sakızı were tested on mice, and acetic acid-induced writhing …

Go to article

Development Of A High-Performance Liquid Chromatography Method For Warfarin Detection In Human Plasma, Yung An Chua, Wan Zaidah Abdullah, Siew Hua Gan Jan 2012

Development Of A High-Performance Liquid Chromatography Method For Warfarin Detection In Human Plasma, Yung An Chua, Wan Zaidah Abdullah, Siew Hua Gan

Turkish Journal of Medical Sciences

Most of the high-performance liquid chromatography (HPLC) methods that have been developed to measure warfarin levels use the preextraction spiked internal standard method. We developed a new liquid-liquid extraction (LLE) and reversed-phase HPLC method that uses a postextraction spiked internal standard for the determination of plasma warfarin. Materials and methods: The effect of varying the 1) mobile phase pH, 2) type and composition of organic solvents, 3) type and concentration of buffer solutions, 4) column temperatures, 5) flow rates, 6) organic modifier, and 7) ultraviolet wavelengths were tested. Results: Optimum separation was achieved by using 30:70 (v/v) acetonitrile and potassium …

Go to article

Prevalence And Etiology Of Anemias In The Adult Turkish Population, Ramazan Memi̇şoğullari, Hayri̇ye Ak Yildirim, Taner Uçgun, Meli̇h Engi̇n Erkan, Cemaletti̇n Güneş, Mesut Erbaş, Adem Güngör, Mehmet Emi̇n Yanik Jan 2012

Prevalence And Etiology Of Anemias In The Adult Turkish Population, Ramazan Memi̇şoğullari, Hayri̇ye Ak Yildirim, Taner Uçgun, Meli̇h Engi̇n Erkan, Cemaletti̇n Güneş, Mesut Erbaş, Adem Güngör, Mehmet Emi̇n Yanik

Turkish Journal of Medical Sciences

Anemia is common in the general population and one of the most frequently observed nutritional deficiency diseases in the world today. The aim of this study was to investigate the prevalence and etiology of anemias in a large cohort representing the Turkish nation. Materials and methods: The study population comprised 2187 subjects. Serum iron, iron binding capacity, ferritin, vitamin B12, and folic acid analyses were conducted with autoanalyzers using commercial kits. Results: A total of 565 (25.8%) subjects (423 females and 142 males) were diagnosed as anemic. The prevalence of anemia was 30.0% in female and 18.2% in male participants. …

Go to article

Early Oxidative Status In Adult Patients With Isolated Traumatic Brain Injury, Özgür Söğüt, Hali̇l Kaya, Mehmet Tahi̇r Gökdemi̇r, Leyla Solduk, Mehmet Aki̇f Dokuzoğlu, Mustafa Burak Sayhan, Atilhan Kaya, Abdürrahi̇m Koçyi̇ği̇t Jan 2012

Early Oxidative Status In Adult Patients With Isolated Traumatic Brain Injury, Özgür Söğüt, Hali̇l Kaya, Mehmet Tahi̇r Gökdemi̇r, Leyla Solduk, Mehmet Aki̇f Dokuzoğlu, Mustafa Burak Sayhan, Atilhan Kaya, Abdürrahi̇m Koçyi̇ği̇t

Turkish Journal of Medical Sciences

To investigate oxidative and antioxidative status, as well as the Glasgow Coma Scale (GCS) and Revised Trauma Score (RTS), reflecting injury severity and neurological outcome during the early posttraumatic period in patients with isolated traumatic brain injury (TBI). Materials and methods: Fifty-one adult patients with TBI and 45 eligible healthy volunteers as control subjects were enrolled. Plasma total oxidant status (TOS), total antioxidant status (TAS), and the oxidative stress index (OSI) were calculated as biomarkers of early oxidative changes in serum using a novel automated method. Results: TOS levels and OSI values were significantly higher in nonsurvivors compared with those …

Go to article

Structural And Optical Studies On La Doped Cds Nanocrystalline Films, Kusumanjali Dehmukh, Mimi Mukherjee, Shashi Bhushan Jan 2012

Structural And Optical Studies On La Doped Cds Nanocrystalline Films, Kusumanjali Dehmukh, Mimi Mukherjee, Shashi Bhushan

Turkish Journal of Physics

This paper reports the synthesis of pure and lanthanum (La) doped nanocrystalline CdS semiconducting films on the glass substrate by means of chemical bath deposition (CBD), with Cd(CH_3COO)_2 as Cadmium (Cd) ion source, (NH_2)_2CS as sulphur (S) ion source and Thioglycerol as capping agent. Long, rod like structures is observed in SEM micrographs of the films. XRD studies show the existence of both hexagonal and cubic phases. Increase in FWHM is observed for smaller particle due to nanocrystalline effect. UV-VIS absorption studies show shift of absorption edge towards lower wavelength side. Corresponding change in band gap energy results in shift …

Go to article

Histopathological Effects Of S. Xylosus Peptidoglycan In Comparison To E. Coli Lipopolysaccharide In The Urinary Tract Of Mice, Harith Jabbar Fahad Al-Mathkhury, May Talib Flaih, Hiba Khalil Tawfiq Jan 2012

Histopathological Effects Of S. Xylosus Peptidoglycan In Comparison To E. Coli Lipopolysaccharide In The Urinary Tract Of Mice, Harith Jabbar Fahad Al-Mathkhury, May Talib Flaih, Hiba Khalil Tawfiq

Turkish Journal of Medical Sciences

The present work, among other previous studies done in our lab, aimed to highlight the histopathological effect of S. xylosus peptidoglycan in comparison to LPS of E. coli. Materials and methods: One hundred and fifty urine specimens were collected from urinary tract infection patients visiting Baghdad hospitals. The histopathological effects of S. xylosus S24 peptidoglycan was studied in the urinary tract of female mice by injecting 5 animal groups at the following concentrations: 1000, 2000, 3000, 4000, and 5000 µg/mL. Another 5 groups were injected with 10, 25, 50, 75, and 100 ng/mL of E. coli (serotype 0128:B12) LPS. Results: …

Go to article

Effects Of Androgen On Expression Of Omgp Of The Hibd Neonatal Rat Brain, Manling Liu, Zhankui Li Jan 2012

Effects Of Androgen On Expression Of Omgp Of The Hibd Neonatal Rat Brain, Manling Liu, Zhankui Li

Turkish Journal of Medical Sciences

To investigate the protective effects of testosterone propionate (TP) on hypoxic-ischemic brain damage (HIBD) neonatal rat brain by observing oligodendrocyte myelin glycoprotein (OMgp) expression in the cortex and hippocampus after HIBD. Materials and methods: Rats were randomly divided into 3 groups: TP pretreatment, HIBD control, and a sham treatment group. Rats 7 days old from the TP group and HIBD control group were subjected to HIBD, and OMgp expression in the hippocampus and cerebral cortex of the different doses and groups was observed after hypoxic-ischemic induction at 24 h, 48 h, 72 h, 7 days, and 14 days. Results: The …

Go to article

New Records Of Semiaquatic Species Marionina (Clitellata, Enchytraeidae) From Japan, With A Description Of Marionina Biwaensis Sp. Nov., Takaaki Torii Jan 2012

New Records Of Semiaquatic Species Marionina (Clitellata, Enchytraeidae) From Japan, With A Description Of Marionina Biwaensis Sp. Nov., Takaaki Torii

Turkish Journal of Zoology

Marionina biwaensis sp. nov. is described from Lake Biwa. This new species differs from all other Marionina species: lacking lateral chaetae completely and ventral chaetae in II, segment number 38-43, origin of dorsal blood vessel XV or XVI, spermathecal ampullae with irregular protuberances and chaetal distribution 1 per postclitellar bundles. In addition, the descriptions of M. coatesae, M. nevisensis, and M. riparia are augmented and recorded here for the first time in Japan.

Go to article

A Long-Term Eutrophication Process Observed From The Changes In The Horizontal Distribution Of Profundal Oligochaete Fauna In Mesotrophic-Eutrophic Lake Kawaguchi, Japan, Kimio Hirabayashi, Keiko Oga, Kazuya Yoshizawa, Norihiko Yoshida, Futaba Kazama Jan 2012

A Long-Term Eutrophication Process Observed From The Changes In The Horizontal Distribution Of Profundal Oligochaete Fauna In Mesotrophic-Eutrophic Lake Kawaguchi, Japan, Kimio Hirabayashi, Keiko Oga, Kazuya Yoshizawa, Norihiko Yoshida, Futaba Kazama

Turkish Journal of Zoology

The purpose of this study was to record the oligochaete fauna in Lake Kawaguchi and clarify their horizontal distribution. In addition, annual changes in the lake were recorded. Samples were collected between 5 March 1993 and 7 March 2006 by using a standard Ekman-Birge sampler at 22 stations, and multipoint sampling surveys were carried out. As a result of the study, a total of 8 species belonging to 6 genera and 3 subfamilies were identified. The average density of oligochaetes for the entire lake was 5247 ± 3873 ind m^{-2} and the average wet weight of oligochaetes was 25.5 ± …

Go to article

Distribution Of Aquatic Oligochaetes (Annelida, Clitellata) Of High-Elevation Lakes In The Eastern Black Sea Range Of Turkey, Seray Yildiz, Murat Özbek, Mustafa Ruşen Ustaoğlu, Haşi̇m Sömek Jan 2012

Distribution Of Aquatic Oligochaetes (Annelida, Clitellata) Of High-Elevation Lakes In The Eastern Black Sea Range Of Turkey, Seray Yildiz, Murat Özbek, Mustafa Ruşen Ustaoğlu, Haşi̇m Sömek

Turkish Journal of Zoology

Many large and small lakes of varying depths are present in the Eastern Black Sea Range of Turkey, the nation's third most important glacial region following the Ağrı and Cilo-Sat mountain ranges. During the present study, 6 expeditions to collect aquatic oligochaetes from these lakes were conducted in July and August of 2005, 2006, and 2007; qualitative and quantitative samples were collected from 59 glacial lakes. We present and analyze the dominancy and distribution of aquatic oligochaete assemblages and their relation to environmental factors (temperature, dissolved oxygen, pH, electrical conductivity, salinity, turbidity, PO_4^{-3}-P, HCO_3^{-}, organic carbon, hardness, Ca^{2+}, Mg^{2+}, Si, …

Go to article

Phylogeny Of Basal Descendants Of Cocoon-Forming Annelids (Clitellata), Martin Lindsey Christoffersen Jan 2012

Phylogeny Of Basal Descendants Of Cocoon-Forming Annelids (Clitellata), Martin Lindsey Christoffersen

Turkish Journal of Zoology

Molecular analyses have been unsuccessful in placing the clitellates among annelids. Available morphological characters are ordered into congruent transformation series according to Hennigian principles. Orbiniidae is chosen as the outgroup. I propose the following phylogeny [number of apomorphies within brackets]: (Clitellata sensu lato [6] (Questidae [6] + Apodadrilida, new [2] (Parergodrilidae [3] (Stygocapitella [3] + Parergodrilus [4]) + Oligochaeta [7] (Aphanoneura [2] (Aeolosomatidae [2] + Potamodrilidae [3]) + Dorsopharyngea, new [7] (Hrabeiellidae, new [6] + Euclitellata [5])))). Worms with ring-like clitella surrounding the body almost completely are herein renamed Euclitellata. Clitellata is expanded to include all annelids that, in addition …

Go to article

Profundal Oligochaete Assemblages In Palaearctic Lakes, Tarmo Timm Jan 2012

Profundal Oligochaete Assemblages In Palaearctic Lakes, Tarmo Timm

Turkish Journal of Zoology

The profundal oligochaete fauna is mostly formed of species present also in shallower waters. Endemic taxa have developed only in ancient rift lakes like Lake Baikal. "Common" lakes, mostly of glacial or volcanic origin, are too ephemeral for speciation. In the profundal of larger European oligotrophic lakes, there can occur about 10 tubificid and lumbriculid species. With a decline in dissolved oxygen in water, only 1-2 of them will remain, Tubifex tubifex often being the last survivor. In eutrophic lakes, Potamothrix hammoniensis is the climax species. In the Far East, the profundal is also inhabited by a small assortment of …

Go to article

Fecal Ciliate Composition Of Cypriot Domestic Horses (Equus Caballus Linnaeus, 1758), Bayram Göçmen, Gözde Gürelli̇, Burk A. Dehority Jan 2012

Fecal Ciliate Composition Of Cypriot Domestic Horses (Equus Caballus Linnaeus, 1758), Bayram Göçmen, Gözde Gürelli̇, Burk A. Dehority

Turkish Journal of Zoology

The species composition and distribution of large intestinal ciliates was investigated in feces from 5 Cypriot domestic horses living in Northern Cyprus. We identified 9 ciliate genera and 11 species. This is the first report on intestinal ciliates in Cypriot domestic horses, and no endemic species were observed. The genera Cycloposthium, Spirodinium, and Paraisotricha occurred in all animals. The mean number of ciliates was (5.5 ± 4.4) × 10^4 cells mL^-^1 of feces and the mean number of ciliate species per host was 7.2 ± 1.5. The characteristics of the domestic horse ciliates were almost identical to those reported in …

Go to article

A New Species Of Piaroa Villarreal, Giupponi & Tourinho, 2008 (Schizomida: Hubbardiidae) From Colombia, Osvaldo Villarreal Manzanilla, Luis Fernando García Jan 2012

A New Species Of Piaroa Villarreal, Giupponi & Tourinho, 2008 (Schizomida: Hubbardiidae) From Colombia, Osvaldo Villarreal Manzanilla, Luis Fernando García

Turkish Journal of Zoology

Piaroa guipongai sp. nov. is described based on specimens found in a secondary forest in the department of Tolima, Colombia, representing the third species of Piaroa Villarreal, Giupponi & Tourinho, 2008, and the first from this country. It shares with P. virichaj Villarreal, Giupponi & Tourinho, 2008 the shape and size of the male flagellum and the presence of a conspicuous ventral tubercle in the femur; however, like P. bijagua Armas & Víquez, 2009, it has a larger guard tooth on the chelicerae. When captured, the male holotype emitted an acetic acid secretion, as was previously observed with only 2 …

Go to article

Diet Composition Of Myotis Myotis (Chiroptera, Vespertilionidae) In Western Poland: Results Of Fecal Analyses, Agnieszka Graclik, Oskar Wasielewski Jan 2012

Diet Composition Of Myotis Myotis (Chiroptera, Vespertilionidae) In Western Poland: Results Of Fecal Analyses, Agnieszka Graclik, Oskar Wasielewski

Turkish Journal of Zoology

The diet of greater mouse-eared bats (Myotis myotis) was investigated by analysis of 900 droppings taken from 8 different bat colonies in western Poland. Three taxonomic orders (Coleoptera, Lepidoptera, and Diptera) and representatives of 2 other groups of arthropods (Chilopoda: Lithobiidae and Arachnida: Araneae) were identified in the droppings. Coleoptera was the most abundant prey found in fecal samples in all seasons. Study sites differed significantly in the composition of prey, which probably reflects the local foraging conditions for M. myotis.

Go to article

Aspects Of Biology Of The Deep-Water Pandalid Shrimp Plesionika Martia (A. Milne-Edwards, 1883) From Sığacık Bay (Eastern Mediterranean), Cengi̇z Koçak, Murat Özbek, Zafer Tosunoğlu Jan 2012

Aspects Of Biology Of The Deep-Water Pandalid Shrimp Plesionika Martia (A. Milne-Edwards, 1883) From Sığacık Bay (Eastern Mediterranean), Cengi̇z Koçak, Murat Özbek, Zafer Tosunoğlu

Turkish Journal of Zoology

Some aspects concerning the reproduction, growth, and population dynamics of Plesionika martia were studied. Individuals were collected monthly between May 2008 and April 2009 during surveys conducted using a commercial trawl vessel. Samples were collected from Sığacık Bay (Aegean Sea, eastern Mediterranean) at depths ranging from 494 to 550 m. A total of 2110 individuals (766 males and 1344 females) were caught during these monthly surveys. The carapace length (CL) of the males ranged from 12.4 to 22.1 mm, and in females the CL ranged between 11.5 and 24.9 mm. The values of both CL and weight in females consistently …

Go to article

Morphological And Histological Effects Of Copper Sulfate On The Larval Development Of Green Toad, Bufo Viridis, Mert Gürkan, Si̇bel Hayretdağ Jan 2012

Morphological And Histological Effects Of Copper Sulfate On The Larval Development Of Green Toad, Bufo Viridis, Mert Gürkan, Si̇bel Hayretdağ

Turkish Journal of Zoology

Declines in populations of amphibians have been occurring more dramatically over the past 25 years. The declines have various causes. One of the possible causes of amphibian declines is pesticides. Copper sulfate is commonly used as a fungicide in vineyards and gardens in Turkey. In this study, our purpose was to explain the morphologically and histologically acute toxic effects of copper sulfate on Bufo viridis tadpoles. B. viridis tadpoles at Gosner stage 21 were exposed to different concentrations (0.01, 0.05, and 0.1 mg/L) of copper sulfate for 120 h. The LC_5_0 value of copper sulfate was calculated as 0.058 mg/L. …

Go to article

Investigation Of The Histological Development Of The Frontal Ganglion In Locusta Migratoria L. 1758 (Orthoptera, Acrididae), Meltem Kumaş, Hati̇ce Karaki̇şi̇ Jan 2012

Investigation Of The Histological Development Of The Frontal Ganglion In Locusta Migratoria L. 1758 (Orthoptera, Acrididae), Meltem Kumaş, Hati̇ce Karaki̇şi̇

Turkish Journal of Zoology

The frontal ganglion plays a critical role in insect feeding and molting-related behaviors. It is present in all insect orders at all developmental stages. In this study, the histological development of the frontal ganglion of Locusta migratoria, the African migratory locust, was investigated. Ganglia were dissected at 3 distinct developmental stages and their histological structure was evaluated at the light microscope level. The development of the cells generating the ganglion in the first and fifth nymphal stages and in adults was determined using the variance analysis method. Total width and length of the ganglion cells as well as width and …

Go to article

The Combined Effects Of Salinity And Temperature On The Egg Hatching Rate, Incubation Time, And Survival Until Protozoal Stages Of Metapenaeus Monoceros (Fabricius) (Decapoda: Penaeidae), Mevlüt Aktaş, Nuran Çavdar Jan 2012

The Combined Effects Of Salinity And Temperature On The Egg Hatching Rate, Incubation Time, And Survival Until Protozoal Stages Of Metapenaeus Monoceros (Fabricius) (Decapoda: Penaeidae), Mevlüt Aktaş, Nuran Çavdar

Turkish Journal of Zoology

The combined effects of 3 different temperatures (24, 28, and 32 °C) and salinity levels (35, 40, and 45 g L^{-1}) on the egg hatching rate, incubation time, larval activity, and survival rate until protozoal (PZ1) stage of Metapenaeus monoceros (Fabricius) were investigated under controlled laboratory conditions. The average fertilization rate was 97.25% following spawning. The eggs were stocked in 2-L glass larval culture flasks and received 1 of 9 salinity and temperature combinations in 3 replicates. The eggs hatched in all treatments. Temperature, salinity, and their interaction had significant influences on the hatching rate of the eggs (P < 0.05). The hatching rate decreased as salinity increased and was lowest in all temperature levels at a salinity of 45 g L^{-1}. With regard to the hatching rate, the best combinations were obtained at 35 g L^{-1} and 32 °C (91.67%) and at 35 g L^{-1} and 28 °C (89.17%). The incubation time was shorter at 32 °C (11.2 h) than at 28 °C (14 h) or 24 °C (17.2 h). The development rate from the naupliar stage to the protozoal stage was best at a salinity level of 35 g L^{-1} combined with temperatures of 28 °C and 32 °C. Larval activity was also found to be best at 28 °C and 32 °C at 35 g L^{-1} and 40 g L^{-1}, as compared to that at 24 °C in all salinity levels.

Go to article

Nucleolar Organizer Regions In Mesocricetus Brandti (Nehring, 1898) (Mammalia: Rodentia) From The Yozgat And Tokat Provinces Of Turkey, Nursel Baydemi̇r Jan 2012

Nucleolar Organizer Regions In Mesocricetus Brandti (Nehring, 1898) (Mammalia: Rodentia) From The Yozgat And Tokat Provinces Of Turkey, Nursel Baydemi̇r

Turkish Journal of Zoology

Mesocricetus brandti possesses a diploid chromosome number of 2n = 42, a fundamental number of NF = 82, and a fundamental number of autosomal arms of NFa = 78. The chromosome set consists of 17 meta-submetacentric pairs, 2 subtelocentric pairs, and 1 acrocentric pair. The X chromosome is large and metacentric while the Y is medium-sized and metacentric. The nucleolar organizer regions were located at the telomeric region of 7 biarmed autosomes and at the centromeric region of 1 acrocentric autosome.

Go to article

A New Genus And Species For Turkish Fauna: Zeiraphera Isertana (Fabricius, 1794) (Lep.: Tortricidae), Mustafa Özdemi̇r, Ayşe Özdem Jan 2012

A New Genus And Species For Turkish Fauna: Zeiraphera Isertana (Fabricius, 1794) (Lep.: Tortricidae), Mustafa Özdemi̇r, Ayşe Özdem

Turkish Journal of Zoology

In this study, Zeiraphera isertana (Fabricius, 1794) is newly recorded among Turkish Tortricidae fauna. This is the first record of the genus Zeiraphera Treirschke, 1829 from Turkey. The specimens were collected from cherry trees in Afyonkarahisar Province during 2008. Collection was done via bait traps used for the control of Tortricidae pest moths. Both male genitalia and imago were depicted.

Go to article

Cover And Contents Jan 2012

Cover And Contents

Turkish Journal of Zoology

No abstract provided.

Go to article

The Conservation Genetics Of Three Cave-Dwelling Bat Species In Southeastern Europe And Anatolia, İbrahi̇m Raşi̇t Bi̇lgi̇n Jan 2012

The Conservation Genetics Of Three Cave-Dwelling Bat Species In Southeastern Europe And Anatolia, İbrahi̇m Raşi̇t Bi̇lgi̇n

Turkish Journal of Zoology

Genetic data from populations are currently being used in order to assess the conservation status of various species. In this study, the conservation implications of the genetic structure of 3 cave-dwelling bat species in southeastern Europe and Anatolia are discussed. These species are the greater horseshoe bat (Rhinolophus ferrumequinum), the bent-winged bat (Miniopterus schreibersii), and the long-fingered bat (Myotis capaccinii). The conservation status of the species is evaluated using 3 conservation unit approaches, specifically evolutionarily significant unit and management unit definitions and population aggregation analysis. These approaches are implemented simultaneously for the first time for any species in Turkey, through …

Go to article

Skull Features Of The Common Vole (Microtus Arvalis Sensu Lato) From Hungary: Craniometrical Evidence For Its Taxonomic Detachment, Georgi Markov, Gabor Csorba, Maria Kocheva, Milena Gospodinova Jan 2012

Skull Features Of The Common Vole (Microtus Arvalis Sensu Lato) From Hungary: Craniometrical Evidence For Its Taxonomic Detachment, Georgi Markov, Gabor Csorba, Maria Kocheva, Milena Gospodinova

Turkish Journal of Zoology

A revision was carried out on 245 adult skull specimens of the common vole (Microtus arvalis sensu lato) kept in the mammal collection of the Hungarian Natural History Museum in Budapest. A highly effective craniometric classification function was used to reveal whether they belonged to the common vole (M. arvalis Pallas, 1778 sensu stricto) or to the East European vole (Microtus levis Miller, 1908). It was found that M. levis specimens were present in the Hungarian mammal fauna; the boundaries of that animal's European range were thus expanded in the west. The distribution of the East European vole and the …

Go to article

Spatial And Temporal Variations In The Species Composition And Abundance Of Benthic Molluscs Along 4 Rocky Shores Of Karachi, Solaha Rahman, Sohail Barkati Jan 2012

Spatial And Temporal Variations In The Species Composition And Abundance Of Benthic Molluscs Along 4 Rocky Shores Of Karachi, Solaha Rahman, Sohail Barkati

Turkish Journal of Zoology

A total of 97 species of macromolluscs were collected from 4 rocky beaches (Manora, Buleji, Nathiagali, and Cape Monze) along the Karachi coast from December 1993 to December 1995. More species were recorded from Buleji (68) and Manora (63) than from Nathiagali (55) and Cape Monze (57). Gastropods dominated at all 4 of the sites studied. Four species were commonly abundant at all 4 sites: Turbo coronatus, Nerita albicilla, Morula granulata, and Cerithium rubus. The average number of species decreased with an increase in the tidal heights at Manora, Buleji, and Nathiagali, whereas this was greater in the high tidal …

Go to article

First Prev Next Last