A novel methodology for the determination of Hg(II) ions was developed based on optical fiber chemical sensing in a microfluidic device containing a selective tripodal chromoionophore (i.e. tris[2-(4-phenyldiazenyl)pheny ...

Problem posing semi-structured type of learning is a form of physical activity that can activate students 'skills, develop students' thinking to solve problems and lead to a positive attitude towards physics. Familiarize ...

Problem Posing is one of the models of learning that can enable learners, develop critical and creative thinking skills. It is expected to build a positive attitude, and improving the quality of human resources to face ...

The purpose of this research were: to analyze significant differences ability of multirepresentation in verbal, mathematics, graphics, and image representation between class using free inquiry model with the control ...

Purposes of this study were: (1) to examine differences in learning outcomes using cooperative learning model type of snowball throwing base on discussions with the conventional learning in teaching physics in the junior ...

A novel chemosensor, based on tris[2-(4-phenyldiazenyl)phenylaminoethoxy]cyclotriveratrylene (TPPECTV) as chromophore, has been developed for the colorimetric determination and visual detection of Hg(II) ions. TPPECTV ...

A selective tripodal chemosensor based on 1,1,1-tris[(7-nitrobenzofurazan-4-yl)-n-1-aza-5-oxahexanyl] propane (1, TNFHP) has been developed for the detection of Hg(II) ions. This receptor exhibits a pronounced chromogenic ...

The objectives of this study were (1) to describe an increase in activity of a class VIII student B SMPN 7 Jember during the learning of physics through the implementation of cooperative learning model type Think Pair Share ...