Yayınlar (Eski)

Permanent URI for this collectionhttps://hdl.handle.net/20.500.12597/3200

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A Comparative Investigation of Arcobacter cryaerophilus Infection among Albino Crosses and High- and Low-Body-Weight Rainbow Trout
(Journal of Aquatic Animal Health 14:39 39-44, 2002, 2002) Aydın, Seyit; Engin, Murat; Bircan, Recep
Arcobacter cryaerophilus was isolated from naturally infected rainbow trout Oncorhynchus mykiss, and its pathogenicity was tested by intramuscular injection into healthy I-year-old high-body-weight (HBW) and low-body-weight (LB W) normally pigmented rainbow trout and albino crosses. Experimental infections caused deaths with gross clinical abnormalities such as exophthalmia, liver damage, bloody hemorrhagic kidney and heart, and swollen intestines. No significant differences in deaths were observed among the three infected fish groups. Hematocrit levels in blood of the experimentally infected HBW rainbow trout were significantly less than in healthy fish. No significant decreases were observed in the serum total protein of both the experimentally infected albino crosses and the high weight groups. Albumin and creatinine concentrations in serum were not significantly different among the three treatments.
A thematic review of ‘energy’ teaching studies: focuses, needs, methods, general knowledge claims and implications
(Energy Education Science and Technology Part B: Social and Educational Studies 2009 Volume (issue) 1(1): 1-26, 2009-01-07) Kurnaz, Mehmet Altan; Çalık, Muammer
A review and synthesis of the studies of teaching the ‘energy’ concept are worthy for science education researchers, teachers, curriculum developers, and policy makers. Since teachers may have a busy schedule, they may lack of tracking related studies. Therefore, this thematic review will highlight them on the studies’ perspectives-focuses, needs, methods, general knowledge claims and implications- of ‘energy’ teaching studies. Finally, this paper intends to evaluate the ‘energy’ teaching studies to notice where we are. Using a thematic matrix, each study was described. General trends were also apparent. Further, the similarities and differences were obvious since the unique features of each study were clear. Briefly, an interpretive account of the ‘energy’ teaching studies was followed. In light of the general knowledge claims, it can be deduced that most of the studies has pointed out that their used alternative approaches are more effective in student’s conceptual learning or made a significant contribution to student’s learning experience/motivation/skills. However, the only two studies also pointed out some disadvantages of their used approaches. Most of the studies under investigation recommended audience to carry out their used alternative approaches in their teaching-learning processes.
A Thematic Review of Some Studies Investigating Students’ Alternative Conceptions About Energy
(Eurasian J. Phys. Chem. Educ. 3(1):51-74, 2011, 2011) Kurnaz, Mehmet Altan; Sağlam-Arslan, Ayşegül
Since science education researchers, teachers, curriculum developers, and policy makers elsewhere, who have, or plan to use energy concept in their studies may have a busy schedule to track related studies, a review and synthesis of the studies of alternative conceptions of students about the energy concept are valuable for them. Therefore, the present paper presents a detailed thematic review of students’ alternative conception studies about the energy concept to highlight relevant people on the studies’ needs, methods, general knowledge claims and implications. Hereby, we may compile and notice where we are on students’ alternative conceptions related with energy concept. To this end, each study was described by using a thematic matrix. The aim of alternative conception studies about energy concept generally have been to emerge students’ understanding, determine appropriate age to teach energy concept, and compare understanding based on age or culture. While the methods of studies on exploring students’ understanding consist of interviews, paper and pencil surveys, and free writing, their analysis consist of classification, comparison, statistical, description, interpretation and praxeological. In light of the general knowledge claims, it can be deduced that most of the studies has highlighted that students have alternative conceptions about energy concept. The studies under investigation generally recommended taking into account their findings in teaching processes.
Acetylation ofWood with Various Catalysts
(ournal of Wood Chemistry and Technology, 31: 2, 142 — 153, 2011) Çetin, Nihat Sami; Özmen, Nilgün; Birinci, Emre
The purpose of this study was to compare two different acetylation mechanisms using acetic anhydride (AA) or vinyl acetate (VA) modification with using various catalysts. Acetylation of Scots pine wood flour with acetic anhydride could be significantly improved in the presence of potassium acetate, potassium carbonate, and sodium carbonate at 100◦C. Sodium carbonate had low effect on VA acetylation, potassium acetate was found to be more effective, and potassium carbonate was better for vinyl acetate modification of wood flour. The two modification methods and the effect of different catalysts on AA or VA modification were characterized by infrared and NMR spectra and analyzed in detail. The acetylation of Scots pine flour with VA and AA showed almost the same WPG values for catalysts when based on long reaction times.
Acrobacter Cryaerophilus Infection İn Cross Albino Rainbow Trout and Rainbow Trout (Oncorhynus mykiss Walbaum) Bacteriology , Groyy Pathology and Clinial Pathology
(Journal of Animal and Veterinary Advances 3 (6): 378-383, 2004, 2004) Bulut, Musa
Active Usage of ICT in Jewellery Art Design Courses
(Procedia Information Technology & Computer Science 00 (2013) 000-000, 2012) Coşkun, Metin; Karabulut Coşkun, Burcu
The aim of this study is to determine the effects of Information and Communication Technologies usage in the area of jewellery design which is the rising sort of arts. The research is a qualitative research. By using “content analysis” methods, datas from scientific studies will be examined and results will be shared. It is thought that the study will be useful for illuminating the usage of information technologies in jewellery arts design area.
Active Usage of ICT in Jewellery Art Design Courses
(Procedia Information Technology & Computer Science, 2012) Coşkun, Metin; Coşkun Karabulut, Burcu
The aim of this study is to determine the effects of Information and Communication Technologies usage in the area of jewellery design which is the rising sort of arts. The research is a qualitative research. By using “content analysis” methods, datas from scientific studies will be examined and results will be shared. It is thought that the study will be useful for illuminating the usage of information technologies in jewellery arts design area.
Alterations of Growth Performance and Blood Chemistry in Nile Tilapia (Oreochromis Nuoticus) Affected by Copper Sulfate in Long-Term Exposure
(Turkish Journal of Fisheries and Aquatic Sciences 15: 487-493 (2015), 2015) Mutlu, Ekrem; Aydın, Seyit; Kutlu, Banu
The objective of this study was to evaluate the effects of copper sulfate (CuSO4.(5 H2O)) on the Nile tilapia (Oreochromis niloticus). Median (LC50) and minimum (LC1O) lethal concentrations of copper sulfate on Nile tilapia were determined via acute tests. LC50 values of copper sulfate for the 48th, 72nd and 96th hours were 13.15, 12.95 and 12.85 mg/L, respectively. LC10 values of 12, 11 and 9.5 mg/L were obtained for similar exposure periods (48th, 72nd and 96th hours), respectively. The effects of 1.5 mg/L dose of copper sulfate on growth rate, gross clinical observations and blood biochemical parameters of Nile tilapia were evaluated after 35, 65 and 95 days of exposure periods. The differences of growth rates between control and copper sulfate-exposed groups were not significant (P>0.05) at the end of 35, 65 and 95 days. Continuous exposure of Nile tilapia to 1.5 mg/L concentration of copper sulfate in water solution for three periods (35, 65 and 95 days) decreased the total protein, albumin, aspartate aminotransferase (AST), alanine aminotransferase (ALT), glucose (except the elevation in the exposed group at the end of 95 days period), magnesium (Mg+²), calcium (Ca+²), iron (Fe+²), potassium (K+), sodium (Na+1), chloride (CI-) and phosphate values in serum. The cholesterol, low density lipid (LDL), triglyceride, globulin, creatinine, alkaline phosphatase (ALP), total bilirubin, direct bilirubin, uric acid and blood urea nitrogen (BUN) concentrations in the serum increased in copper sulfate-exposed fish.
Alterations of Growth Performance and Blood Chemistry in Nile Tilapia (Oreochromis Nuoticus) Affected by Copper Sulfate in Long-Term Exposure
(Turkish Journal of Fisheries and Aquatic Sciences 15: 487-493 (2015), 2015) Mutlu, Ekrem; Aydın, Seyit; Kutlu, Banu
The objective of this study was to evaluate the effects of copper sulfate (CuSO4.(5 H2O)) on the Nile tilapia (Oreochromis niloticus). Median (LC50) and minimum (LC1O) lethal concentrations of copper sulfate on Nile tilapia were determined via acute tests. LC50 values of copper sulfate for the 48th, 72nd and 96th hours were 13.15, 12.95 and 12.85 mg/L, respectively. LC10 values of 12, 11 and 9.5 mg/L were obtained for similar exposure periods (48th, 72nd and 96th hours), respectively. The effects of 1.5 mg/L dose of copper sulfate on growth rate, gross clinical observations and blood biochemical parameters of Nile tilapia were evaluated after 35, 65 and 95 days of exposure periods. The differences of growth rates between control and copper sulfate-exposed groups were not significant (P>0.05) at the end of 35, 65 and 95 days. Continuous exposure of Nile tilapia to 1.5 mg/L concentration of copper sulfate in water solution for three periods (35, 65 and 95 days) decreased the total protein, albumin, aspartate aminotransferase (AST), alanine aminotransferase (ALT), glucose (except the elevation in the exposed group at the end of 95 days period), magnesium (Mg+²), calcium (Ca+²), iron (Fe+²), potassium (K+), sodium (Na+1), chloride (CI-) and phosphate values in serum. The cholesterol, low density lipid (LDL), triglyceride, globulin, creatinine, alkaline phosphatase (ALP), total bilirubin, direct bilirubin, uric acid and blood urea nitrogen (BUN) concentrations in the serum increased in copper sulfate-exposed fish.
AN ANALYSIS OF TURKISH HIGH SCHOOL STUDENTS’ PERFORMANCE ON CONCEPTUAL, ALGORITHMIC AND GRAPHICAL PHYSICS PROBLEMS
(Journal of Asian Scientific Research, 2013, 3(7):698-714, 2013) Kurnaz, Mehmet Altan
The aim of this study was to investigate performances of high school students regarding the conceptual, algorithmic and graphical physics questions by comparatively. The study was carried out with participant of 68 students. Data of the study was gathered with 15 open-ended questions. The results of the study showed that students performed better on the algorithmic and conceptual questions than the graphical questions. It was concluded that students’ competence in each question types may be affected from ratio of question types asked in university entrance examinations.
An Evaluation of Changes to the Turkish High School Physics Curriculum
(International Education Studies; Vol. 5, No. 5; 2012, 2012) Kurnaz, Mehmet Altan; Çepni, Salih
A New Turkish Physics Curriculum has been constructed between the years 2006-2009. It is to the gaining of new perspectives. The purpose of this paper, therefore, is to reflect on the nature of the New Turkish Physics Curriculum (NTPC). To this end, the authors focus on the five themes of the NTPC using a document analysis method: basic reasons and needs of the NTPC, fundamental approaches of the NTPC, learning areas of the NTPC, characteristics of teaching activities in terms of the NTPC, needs of the NTPC. This paper highlights thus focusses on the fundamentals of the NTPC and considerations of its easy adaptation into practice.
An Investigation of Mathematics and Science Questions in Entrance Examinations for Secondary Education Institutions in Turke
(Journal of Baltic Science, 12(3),352-364, 2013) Incikabi, Lutfi
This study aimed to investigate LDE mathematics and science questions in terms of cognitive requirements (knowing, applying and reasoning) and structural properties (conceptual, algorithmic and graphical). The methodology adopted in the current study was document analysis. The results of this study indicated that LDE science assessments emphasized conceptual questions, while mathematics questions were more algorithmic in structure. In addition, both mathematics and science items de-emphasized graphical representations. In terms of their cognitive requirements, both science and mathematics LDE items neglected the cognitive domain of reasoning. Moreover, science questions mostly met in the intersection of knowing and conceptual, while mathematics questions often required students to apply knowledge on algorithmic questions. This study also concluded that the distribution of question requirements differed from year to year. Some implications regarding the results included that implementing a nation-wide assessment that neglects graphical representations contradicts the target goal of the mathematics and science programs in Turkey. The fact that the LDE was designed to determine the level of students’ learning yet neglects reasoning questions also presents a contradiction to the curricular aims
Analysis of Terrain Usage in Kastamonu-Ilgaz Mountain Natural Park
(International Symposium on Environmental Protection and Planning, 2011) Aydınözü, Duran; İbret, Ünal; Aydın, Mirac
Ilgaz Mountain National Park, the Black Sea region is located within the Department of Western Black Sea. Properties in order to protect its flora and fauna of this region was declared a national park, in recent years with growing winter tourism in our country has become one of the important winter tourism resorts. For this reason, Ilgaz Mountain National Park is to expose the status of land use, are likely to be done here will have an important role in planning. Geographic Information Systems (GIS) of Ilgaz Mountain National Park in the evaluation using the natural structure of the forest cover in terms of land use that have been identified. Ilgaz Mountain National Park have been identified natural structure of forest cover in terms of land use that using Geographic Information Systems (GIS) of Ilgaz Mountain National Park in the evaluation. There have been especially with pure fir and pine forest stands with forest soil (FS) areas. The land use maps and tables were obtained by examining the spatial data base. The research area in terms of slope and aspect by analyzing the use of national park status was evaluated. There are existing facilities which pose a risk to the sustainability of the national park area. Also used in the areas of winter tourism in the area have been determined. This study was made with the Ilgaz Mountain, spatial analysis, so in the future are likely to be redirected to the data base is formed with human intervention
ANALYZING PERCEPTIONS OF SOCIAL STUDIES TEACHERS ON PROJECT STUDIES IN THE 6th AND 7th GRADE SOCIAL STUDIES LESSONS OF PRIMARY SCHOOLS
(The İnternational Journal of Social Sciences vol 6 no 1, 2012) İBRET, B. Ünal; RECEPOĞLU, Ergün; KARASU, Emine
The aim of this study is to evaluate social studies teachers' perceptions on project studies in primary schools in terms of some variables (gender, graduated faculty, years in profession, and participation to in-service training). For this purpose, a questionnaire is prepared in order to elicit opinions of 25 social studies teachers from 22 primary schools of Ministry of National Education in the province of Kastamonu about their project studies on social studies lessons. Reliability coefficient of the questionnaire was 0.90. As a result of the survey conducted with teachers of social studies teachers, opinions of the teachers about the project studies being implemented in social studies classes do not show a statistically significant difference in terms of gender, years in profession, and participation to in-service training that they have received, but it was observed that the teachers who graduated from faculty of education have more positive views on the project studies than other social studies teachers.
ANALYZING PERCEPTIONS OF SOCIAL STUDIES TEACHERS ON PROJECT STUDIES IN THE 6th AND 7th GRADE SOCIAL STUDIES LESSONS OF PRIMARY SCHOOLS
(The İnternational Journal of Social Sciences vol 6 no 1, 2012) İbret, Ünal; Recepoğlu, Ergun; Karasu, Emine
The aim of this study is to evaluate social studies teachers' perceptions on project studies in primary schools in terms of some variables (gender, graduated faculty, years in profession, and participation to in-service training). For this purpose, a questionnaire is prepared in order to elicit opinions of 25 social studies teachers from 22 primary schools of Ministry of National Education in the province of Kastamonu about their project studies on social studies lessons. Reliability coefficient of the questionnaire was 0.90. As a result of the survey conducted with teachers of social studies teachers, opinions of the teachers about the project studies being implemented in social studies classes do not show a statistically significant difference in terms of gender, years in profession, and participation to in-service training that they have received, but it was observed that the teachers who graduated from faculty of education have more positive views on the project studies than other social studies teachers.
Armenians in the Ottoman Society
(Erciyes Üniversitesi, 2008) Öğreten, Ahmet
Assessment of Conditions Influencing Agrobacteriummediated Transient Expression of uidA Gene in Leaf Disks of Sugarbeet (Beta vulgaris)
(Assessment of Conditions Influencing Agrobacteriummediated Transient Expression of uidA Gene in Leaf Disks of Sugarbeet (Beta vulgaris) Journal of Genetics and Molecular Biology, 2007) Öktem, Hüseyin Avni; Yücel, Meral
Optimum Agrobacterium-mediated transformation condition on sugarbeet (ELK345) leaf disks were examined in this study. Parameters are “vacuum infiltration, different bacterial growth medium, inoculation time with bacteria, treatment bacterial strains (EHA105, LBA4404 and GV2260) and L-cysteine in co-cultivation medium” that were studied for optimization. After 3 days, effect of these parameters on transformation was evaluated by histochemical GUS assays. Leaf disks on blue spots were quantitatively analyzed by Zeiss® KS300 image analysis platform. Transient gene expression was enhanced upto 3 fold both by vacuum infiltration at 400 mmHg and Agrobacterium strain GV2260. Selection schemes using phosphinotricin or kanamycin as selective agents were also assessed. Medium containing 150 mg/l kanamycin or 3 mg/L phosphinotricin (PPT) totally inhibited the shoot regeneration. These transformation and selection procedure may be amenable to genetic transformation and may provide a valuable tool in sugarbeet improvement programs.
Çanakkale Boğazı Plajlarındaki Deniz Suyunda Aerob ve Mikroaerofilik Bakteriyel Floranın Araştırılması
(Atatürk Üniversitesi Ziraat Fakültesi Su Ürünleri Bölümü - IV Su Ürünleri Sempozyumu, 2000-06-28) Gültepe, Nejdet; Çolakoğlu, Serhat; Mutlu, Ekrem; Demirci, Aydın; Engin, Murat
Aerob and microerophilik bacterial flora in sea-water of five beaches of The Dardanel Bosphorus was investigated during Jully 1999..
Clinical, haematological and pathological investigations of Escherichia vulneris in rainbow trout (Oncorhynchus mykiss)
(Fish Pathology, 32 (1), 29-34,1997.3, 1997) Aydın, Seyit; Çelebi, Selahattin
Escherichia vulneris was isolated from naturally infected rainbow trout Oncorhynchus mykiss, balloon moly Poecilia sp., silver moly Poecilia sp., and Caucasian carp Carassius carassius, and its pathogenicity was tested by intramuscular injection using healthy I.S-year-old rainbow trout. The experimental infection caused mortalities with gross clinical and histopathological abnormalities in tissues of epidermis, gills, liver, kidney, spleen and intestine of the fish. Leucocytes, lymphocytes and granulocytes in blood of the infected fish were significantly increased as compared to healthy fish and/or recovered fish. Other blood parameters such as haemoglobin content haematocrit value, thrombocyte and erythrocyte numbers were not significantly different between the experimentally infected and healthy. In a therapeutic experiment injection with oxytetracycline controlled the infection.
Clinical, Pathological and Haematological Effects of Micrococcus Infections in Rainbow Trout (Oncorhynchus mykiss Walbaum
(Journal of Animal and Veterinary Advances 4 (2) : 167 - 174, 2005) Aydın, Seyit; Çiltaş, Abdülkadir; Yetim, Hasan; Akyurt, İhsan
This study investigates chronic and sporadic Micrococcus luteus infections of 3 and 4 -year-old broodstock and 2-year- old juvenile cultured rainbow trout (Oncorhynchus VValbaum) during February through April 1 993-1996. Infection had not been observed from 1 997 to 2003. Bacterial isolates vvere identified each year and were tested to determine sensitivity to chemotherapeutants. Infections caused lesions on the skin and caudal fin, and internal organs such as muscle, liver and spleen. In 1 995, naturally infected 2-year-old fish were examined for haematological variables and compared to healthy fish. Leucocytosis and thrombocytosis occurred as well as a reduction in haemoglobin and haematocrit values of infected fish. In 1 996, histopathological examination demonstrated pathological changes in heart, liver, spleen, gill, muscle, kidney and intestinal tissues of juvenile rainbow trout. The minimum bactericidal concentrations (MBCs) of formalin (90 0/0) ethyl alcohol (1 0 0/0) mixture and enrofloxacin against pathogenic bacterium isolated in 1 996 were 3 ug/ml and 0.025 og/ml, respectively. Formalin + ethyl alcohol mixture baths and oral applications of enrofloxacin vvere successfully used for the treatment of naturally infected fish in 1996. Pathogenicity of the M. luteus isolated from crucian carp (Carassius carassjus L.) was tested by intramuscular injection using healthy rainbow trout.

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