Pelaksanaan Pendekatan Scientific pada Pembelajaran Fisika di SMA Negeri di Kabupaten Pidie

This study examines the problem of how the implementation of the scientific approach has been carried out in Physics learning in SMA Negeri Pidie district. The purpose of this research is to know how far the implementation of scientific approach in Physics subject in SMA Negeri in Pidie district. Subjects in this study were all physics teachers of SMAN applying Curriculum 2013 that is SMAN 1 Sigli, SMAN 2 Sigli, SMAN Unggul Sigli, SMAN 1 Mutiara, and SMAN 1 Sakti. While the Object is the plan of implementation of learning in the teacher and questionnaire implementation of scientific approach. The type of this research is qualitative research. Data collection in this research is done by method (1) questionnaire, and (2) documentation. The data were analyzed descriptive qualitative using percentage equation. The results showed that the implementation of the scientific approach in Physics learning in SMA Negeri in Pidie district has been running well. The average percentage of the implementation of the scientific approach of 77.85% means that teachers always take a scientific approach in the learning process

Protection of Galvanized steel from corrosion in salt media using sulfur nanoparticles

تم دراسة خصائص الكبريت النانوي بوساطة  جهاز مجهر القوة الذري. أظهرت قياسات مجهر القوة الذرية الحجم الكلي للكبريت النانوي المحضر بوساطة مزج ثايوسلفات الصوديوم مع مستخلص نبات  اليقطين مساويا 93.62نانومتر .تم دراسة حماية التاكل لمعدن الكلفانك ستيل  في الوسط الملحي وبمختلف درجات الحرارة بوساطة الكبريت النانوي وتم الحصول على افضل نتائج ثرموديناميكية  للمعدن بوجود الكبريت النانوي حيث كفاءة التثبيط ومقاومة لتاكل للمعدن تعطي اعلى قيمة عند اعلى درجة حرارية بوجود المثبط بلمقارنة بغيابة .كذلك سرعة التاكل تقل عند زيادة درجة الحرارة بوجود الكبريت النانوي, القيم الموجة للدالة الحرارية بوجود وبعدم وجود الكبريت النانوي تدل على انه التفاعل ماص للحرارة . لذا يقترح ان الكبريت النانوي مثبط جيد لمعدن الكالفانك ستيل في الوسط الملحي                The characteristics of sulfur nanoparticles were studied by using atomic force microscope (AFM) analysis. The atomic force microscope (AFM) measurements showed that the average size of sulfur nanoparticles synthesized using thiosulfate sodium solution through the extract of cucurbita pepo extra was 93.62 nm. Protecting galvanized steel from corrosion in salt media was achieved by using sulfur nanoparticles in different temperatures. The obtained data of thermodynamic in the presence of sulfur nanoparticles referred to high value as compares to counterpart in the absence of sulfur nanoparticles, the high inhibition efficiency (%IE) and corrosion resistance were at high temperature, the corrosion rate or weight loss decreased with increasing temperature in the presence of sulfur nanoparticles. The positive value of enthalpy ∆H* for galvanized steel with and without sulfur nanoparticles indicates that the reaction was endothermic. Therefore, the sulfur nanoparticles can be suggested as good inhibitor for galvanization in salt media

Effect of Pregnancy on Selenium, Cupper ,Zinc and Others Biochemical Feacture

Pregnancy is a stressful condition in which many physiological and metabolic functions are altered to a considerable extent . Pregnancy is a physiological state accompanied by a high-energy demand and an increased oxygen requirement. The present study aim to study selenium ,zinc cupper in the first trimester of pregnancy. The study group comprised of Fourty five pregnant women and twenty six non pregnant women as control . The samples were taken from pregnant women who come to several heath center in Baghdad city to cheak up. Laboratory investigations including Cupper, Ceruloplasmin, Total Antioxidant (TAA), malondialdehyde (MDA), glutathione (GSH), Zinc, Uric acid, and Selenium had been measured in pregnant women and control . There were significant difference in Cupper, Selenium, Ceruloplasmin, TAA, Zinc, GSH, and MDA, in the pregnant women whene compared to control group. In this study, a significantly positive association was observed between zinc [mg/dl] with ceruloplasmin [mg/dl] (R = 0.47 p< 0.01 ) and TAA [mmol/l] (R= 0.42 p< 0.05) , and negative association was observed between zinc [mg/dl]and cupper [mg/dl] (R = 0.602, p< 0.01) , a significantly negative association between ceruloplasmin [mg/dl] with cupper [mg/dl] (R = 0.754, p< 0.01) ,and positive with TAA [mmol/l]( R = 0.562

The Effect of Self-regulation and Motivation to Outcomes Learning Using Blended Learning Approach

This research aims to determined the effect of self-regulation and motivation to learning outcomes in basic physics courses after using the blended learning approach. This research is a quantitative study with a sample size of 67 people. Samples were taken using random sampling technique from all 1st semester students taking basic physics courses. Data collection was used a self-regulation questionnaire, a learning motivation questionnaire, and student learning outcomes obtained from the accumulation of cognitive, affective, and psychomotor score ​​during the lecture process using a blended learning approach. Data were analyzed using multiple linear regression which was previously tested for linearity and homogeneity. The results of the analysis show that the value of R2 = 0.749 and the equation Y = 0.113X1 + 0.134X2 + 49.37. Based on these results it can be concluded that there is a positive influence between self-regulation and motivation on student learning outcomes in basic physics courses using a blended learning approach. This approach can continue to be developed for students are more motivated and independent in learning so that student learning outcomes can continue to increase even though they cannot learn in real classes during covid-19 pandemic era