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Hematological Values in Hermann`s Tortoise (Testudo hermanni) and Spur-thigted Tortoise (Testudo greaca) from Thrace Region (Turkey)
Murat Tosunoglu,C. Varol Tok,Cigdem Gul
International Journal of Zoological Research , 2005,
Abstract: Fifteen adult Testudo specimens (T. hermanni and T. graeca) of Thrace Region (Turkey) were examined for 10 hematological parameters; Red Blood Cell count (RBC), hematocrit value (PCV), Mean Corpuscular Volume (MCV), Hemoglobin Concentration (HbC), Mean Corpuscular Hemoglobin (MCH), Mean Corpuscular Hemoglobin Concentration (MCHC), blood cell (erythrocyte-leukocyte-thrombocyte) measurements and leukocyte formules. Of the investigation species, the widest and largest sized erythrocytes belong to T. hermanni, while the smallest sized erythrocytes is found T. graeca. Erythrocytes count and hemoglobin of T. graeca are found in more than T. hermanni. These hematological values were compared to those obtained from other Chelonia species.
Data on Hatchlings of Caucasian Rock Lizard, Darevskia valentini (Boettger, 1892) in Northeastern Anatolia
Yahya Tayhan,Kerim ?i?ek,Din?er Ayaz,C. Varol Tok
Ecologia Balkanica , 2011,
Abstract: During our field work in the Tepeler Village (Ardahan, Turkey) on 27th of August, 2010, we observed hatchlings of Darevsika valentini. The mean body length of was found as 28.06±1.14 (25.3 30.4) and the total length as 70.81±3.92 (61.9 81.0). Juveniles were generally observed under stones and those portions of the roots of annual herbaceous plants which remain under stone are also used as shelters for juveniles. Neonates on the southern slopes of the hills could be individually seen and mostly, individuals aggregated [median number of individuals, 6 (115)] and lived in groups.
Data on food composition of Phrynocephalus horvathi Méhely, 1894 (Reptilia: Agamidae) in Mount Ararat (Northeastern Anatolia, Turkey)
Kerim ?i?ek,Din?er Ayaz,C. Varol Tok,Yahya Tayhan
Ecologia Balkanica , 2011,
Abstract: The study presents data on the food composition of Horváth’s toadheaded agama, Phrynocephalus horvathi, in northern slopes of Mount Ararat (Aral k, I d r). A total of 294 prey items were determined in the digestive systems of 36 (8 males, 11 females, and 16 juveniles) individuals examined in the study. Prey groups in the food composition are included in Aranea (1.4%), Orthoptera (1.0%), Hymenoptera (73.5%), Coleoptera (23.1%) and Diptera (1.0%). No significant difference was observed between sexes regarding food composition. Consequently, Phrynocephalus horvathi is partially myrmecophagous (73.5%) and an active predator.
Preliminary Data on Age Estimation and Body Size of the Dwarf Lizard, Parvilacerta parva (Boulenger, 1887) (Reptilia: Lacertilia) from Ak ehir, Konya (Turkey)
Batuhan Yaman Yakin,Mert Gürkan,Sibel Hayretda?,Cemal Varol Tok
Ecologia Balkanica , 2012,
Abstract: In this study, age determination was done by using the skeletochronology method on Ak ehir, Konya (Turkey), 14 (5♂♂; 9♀♀) Parvilacerta parva specimens. Cross-sections of femurs were examined in total 14 individuals, the lowest number of LAGs was seen in one female and one male individuals as 4, the highest number of LAGs were seen in two female individuals as 8. Average SVL was found 50.8 mm (SD=2.27) in male individuals, and 53.1 mm (SD = 3.27) in females. For all the samples, the age-length equation was calculated as SVL (mm) = 37.82 + (2.47 * age). As a result of Pearson correlation analysis, a significant positive correlation (r=0.93, P 0.01) between age and SVL. Pileus length does not increase constantly with age (r=0.007, P=0.98), while pileus width increases normally together with age (r=0.212, P=0.46).
SU(N)-Gauge Theories in Polyakov Gauge on the Torus
C. Ford,T. Tok,A. Wipf
Physics , 1998, DOI: 10.1016/S0370-2693(99)00464-5
Abstract: We investigate the Abelian projection with respect to the Polyakov loop operator for SU(N) gauge theories on the four torus. The gauge fixed $A_0$ is time-independent and diagonal. We construct fundamental domains for $A_0$. In sectors with non-vanishing instanton number such gauge fixings are always singular. The singularities define the positions of magnetically charged monopoles, strings or walls. These magnetic defects sit on the Gribov horizon and have quantized magnetic charges. We relate their magnetic charges to the instanton number.
Abelian Projection on the Torus for general Gauge Groups
C. Ford,T. Tok,A. Wipf
Physics , 1998, DOI: 10.1016/S0550-3213(99)00146-7
Abstract: We consider Yang-Mills theories with general gauge groups $G$ and twists on the four torus. We find consistent boundary conditions for gauge fields in all instanton sectors. An extended Abelian projection with respect to the Polyakov loop operator is presented, where $A_0$ is independent of time and in the Cartan subalgebra. Fundamental domains for the gauge fixed $A_0$ are constructed for arbitrary gauge groups. In the sectors with non-vanishing instanton number such gauge fixings are necessarily singular. The singularities can be restricted to Dirac strings joining magnetically charged defects. The magnetic charges of these monopoles take their values in the co-root lattice of the gauge group. We relate the magnetic charges of the defects and the windings of suitable Higgs fields about these defects to the instanton number.
Fluorosis as an Environmental Disease and its Effect on Human Health
Ercan Varol,Simge Varol
TAF Preventive Medicine Bulletin , 2010,
Abstract: Fluoride is a halogene found in earth, water, rocks, air, plants and animal tissue in various amounts. In normal conditions, people daily take fluoride compounds in amounts without any harmful effects this cause fewer dental caries and the formation of stronger bones. However, if the amount of fluoride taken daily exceeds the safety threshold, chronic fluoride intoxication, known as fluorosis, arises. As a result of fluorosis, pathological changes appear in tooths, skeletal system, liver, kidney, heart, gastrointestinal system and endocrin system. [TAF Prev Med Bull 2010; 9(3): 233-238]
ADHM Construction of Instantons on the Torus
C. Ford,J. M. Pawlowski,T. Tok,A. Wipf
Physics , 2000, DOI: 10.1016/S0550-3213(00)00704-5
Abstract: We apply the ADHM instanton construction to SU(2) gauge theory on T^n x R^(4-n)for n=1,2,3,4. To do this we regard instantons on T^n x R^(4-n) as periodic (modulo gauge transformations) instantons on R^4. Since the R^4 topological charge of such instantons is infinite the ADHM algebra takes place on an infinite dimensional linear space. The ADHM matrix M is related to a Weyl operator (with a self-dual background) on the dual torus tilde T^n. We construct the Weyl operator corresponding to the one-instantons on T^n x R^(4-n). In order to derive the self-dual potential on T^n x R^(4-n) it is necessary to solve a specific Weyl equation. This is a variant of the Nahm transformation. In the case n=2 (i.e. T^2 x R^2) we essentially have an Aharonov Bohm problem on tilde T^2. In the one-instanton sector we find that the scale parameter, lambda, is bounded above, (lambda)^2 tv<4 pi, tv being the volume of the dual torus tilde T^2.
Dynamic Job Scheduling in Multilayer Grid Networks
Cihan Varol
Lecture Notes in Engineering and Computer Science , 2012,
Abstract:
Staj Uygulamalar üzerine Ki isel G zlemler
Dilek Varol
Türk Kütüphanecili?i , 2003,
Abstract:
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