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Now showing items 4571-4580 of 4588
On approximation properties of generalized Lupas type operators based on Polya distribution with Pochhammer k-symbol
(Hacettepe University, 2022)
The purpose of this paper is to introduce a Kantorovich variant of Lupas-Stancu operators based on Polya distribution with Pochhammer k-symbol. We obtain rates of convergence for these operators by means of the classical ...
The development of pre-service teachers' argumentation self-efficacy through argumentation-based chemistry instruction
(Royal Soc. Chemistry, 2024)
This research aimed to examine the impact of argumentation-based chemistry instruction on the argumentation self-efficacy of pre-service teachers' (PSTs') and their perceptions regarding the effectiveness of this instruction ...
Folate receptor alpha expression and significance in endometrioid endometrium carcinoma and endometrial hyperplasia
(E-Century Publishing Corp, 2015)
Endometrioid-type endometrial carcinoma (EEC) developing on the ground of endometrial hyperplasia (EH) is amongst the most commonly observed type of cancer in the world. Folate receptor alpha (FR alpha) is a vitamin molecule ...
Experimental models to study immune dysfunction in the pathogenesis of Parkinson’s disease
(MDPI, 2024)
Parkinson’s disease (PD) is a chronic, age-related, progressive multisystem disease associated with neuroinflammation and immune dysfunction. This review discusses the methodological approaches used to study the changes ...
An experimental study on microstructural, mechanical and machinability properties of as-cast and heat-treated al-7Si-mg alloy
(Springer, 2024)
The automotive industry is constantly striving for targets for the development of lightweight materials for less fuel consumption and carbon emissions. For this purpose, lighter and higher-performance Al-Si alloys with ...
Reinforcing effects of polypropylene on energy absorption and fracturing of cement-based tailings backfill under impact loading
(Springer, 2024)
Polypropylene (PP) fiber-reinforced cement-based tailings backfill (FRCTB) is a green compound material with superior crack resistance and has good prospects for application in underground mining. However, FRCTB exhibits ...
Structure and giant inverse magnetocaloric effect of epitaxial Ni-Co-Mn-Al films
(Institute of Electrical and Electronics Engineers Inc., 2015)
In the ongoing search for magnetocaloric materials, Heusler compound based ferromagnetic shape memory alloys (FSMA) of the system Ni-Mn-Z (Z=Sb, Ga, In, Sn) turned out to be very promising due to low cost of the containing ...
Carotid doppler ultrasound evaluation in patients with pulsatile tinnitus
(Springer India, 2015)
A wide range of conditions, including atherosclerosis, may lead to pulsatile tinnitus. the objective of this study was to evaluate the patients with pulsatile tinnitus by means of carotid Doppler ultrasound parameters. ...
Preparation and characterization of "green" hybrid clay-dye nanopigments
(Pergamon-Elsevier Science Ltd, 2015)
We obtained a low cost and abundant nanopigment material composed of Rhodamine B (Rh-B) organic dye compound and Unye bentonite (UB) clay from Turkey. the characterization of the nanopigment was investigated using scanning ...