Ara
Toplam kayıt 4522, listelenen: 31-40
Synthesis and antimicrobial activities of some new 1,2,4-triazole derivatives
(MDPI, 2010)
Some novel 4,5-disubstituted-2,4-dihydro-3H-1,2,4-triazol-3-one (3, 6, 8, 9) derivatives and or 3-(4-methylphenyl)[1,2,4]triazolo[3,4-b][1,3]benzoxazole (5) were synthesized from the reaction of various ester ethoxycarbo ...
Effect of transport current on the pinning induced magnetostriction of type-II superconductors
(Polish Academy of Sciences, 2008)
We investigated theoretically the influence of the transport current and applied magnetic field on the magnetostriction of type-II superconductors. In order to study the magnetostrictive response of a superconducting slab ...
Suborbital graphs for the group ?2
(Hacettepe University, 2015)
In this paper, we investigate suborbital graphs formed by the action of ?2 which is the group generated by the second powers of the elements of the modular group ? on Q. Firstly, conditions for being an edge, self-paired ...
Mapping the increasing sophistication of students’ understandings of plate tectonics: A learning progressions approach
(Taylor and Francis Inc., 2019)
Plate tectonics is the organizing paradigm of geosciences, but it is also conceptually complex, and students often struggle with developing a system level understanding of the earth. This article reports on research designed ...
The effect of ethnobotanic activities on learning performance of pre-service teachers about plants’ classification
(SciencePark Science, Organization and Counseling, 2019)
This study analyses the effectiveness of ethnobotanic activities on learning performance of pre-service teachers about plants’ classification. The research design was a quasi-experimental model. The results of the study ...
Diversity of citrus germplasm in the Black Sea Region in Turkey
(International Society for Horticultural Science, 2019)
The Black Sea Agricultural region represents 12.59% of Turkey’s fruit production and particularly the East Black Sea region ranks as 3rd in citrus fruit production after the Mediterranean and Aegean regions. Due to climate, ...
Integration of engineering design in early education: How to achieve it
(Birlesik Dunya Yenilik Arastirma ve Yayıncilik Merkezi, 2019)
Young boys and girls make houses and beds from cloths and cartons for their dolls, erect shelters and fences for toy animals, build ramps and garages from blocks for toy cars, and lift objects using a rope and reel for ...
Investigation of 9th grade students’ geometrical figure apprehension
(Eurasian Society of Educational Research, 2019)
In the present study, the aim was to investigate 9th grade students’ geometrical figure apprehension. To this end, the Figure Apprehension Cognitive Processes Test (FACPT), constructed by the researchers of the study, was ...
Coexistence of papillary thyroid cancer and Hashimoto's thyroiditis developing within an ovarian mature cystic teratoma
(Wolters Kluwer Medknow Publications, 2019)
A wide variety of tissues derived from the three germ layers are seen in ovarian teratomas. Microscopically, the most commonly seen tissues are epidermis, skin adnexa, and neural tissues. Thyroid tissue is present in 10% ...
Melatonin attenuates ovarian ischemia reperfusion injury in rats by decreasing oxidative stress index and peroxynitrite
(Turkiye Klinikleri, 2020)
Background/aim: To evaluate the protective effect of melatonin on ovarian ischemia reperfusion injury in a rat model. Materials and methods: Forty-eight rats were separated equally into 6 groups. Group 1: sham; Group 2: ...