Pengaruh Penggunaan Balon sebagai Alat Peraga pada Pembelajaran Materi Bentuk Molekul Terhadap Hasil Belajar dan Aktivitas Siswa Kelas X MIPA 1 di SMA Negeri 3 Kotabumi Tahun Pelajaran 2018--2019

The purpose of this study was to improve the learning outcomes of students in X MIPA 1 SMAN 3 Kotabumi for the 2018-2019 academic year by using balloons as a medium for learning material in molecular form.This research was designed in the form of classroom action research and was carried out in class x mipa 1 students of SMAN 3 Kotabumi in the 2018-2019 academic year. The research consisted of 2 cycles in the first cycle about VSEPR theory and the second cycle about hybridization theory. In the implementation of the research, the use of balloon media was tested in studying the molecular shape material, then analyzed whether there was an effect on student learning outcomes. Data collection techniques using cognitive tests and student attitude questionnaires obtained from each cycle, the results were analyzed whether there was an increase in each cycle. Based on the results of this study, it shows that the use of balloons as teaching aids in learning material in molecular form can help improve learning outcomes of chemistry and student activities in class X MIPA 1. There is an increase in learning outcomes by 33% from cycle I to cycle II, while student activities based on questionnaires have increased in cycle II where students, easier to remember, easier to understand, happy with learning chemistry and active in learning. The conclusion of this study is that the use of balloons as teaching aids in learning material in molecular form can help improve learning outcomes of class X MIPA 1 students at SMAN 3 Kotabumi in the 2018-2019 academic year.

Pemaknaan Profesi Perempuan Dalam Video Musik Lokal Di Nusa Tenggara Timur

The appearance of women in music videos is a site that shows various ideologies which influence the thinking of a society about the construction of women, including the construction of the profession of women. The appearance of women is inseparable from values and is not solely in the interests of women but there are certain interests. This study wants to see whether the representation of the women's profession in the local music video shows strength in women or leads to a new repression for local women in East Nusa Tenggara. The aims of this study are to provide an overview of the meaning of the women's profession through local music videos of East Nusa Tenggara and to provide a description of the hybridity discourse in the depiction of the women's profession through the NTT Local music video. The type of this research is descriptive qualitative research uses the approach of feminism, the women's profession, public space and cultural hybridization theory to see how the meaning of the women's profession in local music videos in East Nusa Tenggara. This study uses the analysis of semiotics of Carol Vernalis. The data in this study were analyzed in 3 stages, namely: (1) structural analysis created in the music video, (2) reading the video chronology and analysis of two specific parts, and (3) understanding the women's profession in terms of cultural hybridity. The results of this study indicate that women who are teachers are not professionally interpreted as attached to the teaching profession but emphasize the symbols of modern women through space and fashion. Hybridity between the appearance of modern women but still bound by local patriarchal culture. Women who are midwives are interpreted by the domestication of women. Women are shown with an ideal picture of women. The meaning of the women's profession experienced repression, where the women's profession featured in this local music videos is the result of a tug-of-war on various discourses in which the appearance is more concerned with modernity that leads to industrial interests. Hybridity is not only related to the fusion of culture but the consequences of domination that arise when there is fusion of culture. In the end, this music videos do not fully show the female profession but the interests of modernity, global, patriarchy are prioritized.

A Study of Hybridization Understanding from Algorithmic to Conceptual – Is Algorithmic an End Point for Students?

<p>This paper details the results of a qualitative study examining the reasoning students use to solve common hybridization theory assessment questions and their mental images of hybrid and atomic orbitals. The data were collected through think-aloud interviews as students worked through a five-question questionnaire. Prior to recruitment, the study was deemed to be exempt from IRB review by Sterling IRB. Prior to start of interviews participants provided verbal consent. The resulting transcripts and answers were analyzed following the practices of grounded theory and constant comparative analysis. Coding schemes can be found in the Supplementary Information section. Results, conclusions, and implications for teaching are presented in the manuscript.</p>

A Study of Hybridization Understanding from Algorithmic to Conceptual – Is Algorithmic an End Point for Students?

<p>This paper details the results of a qualitative study examining the reasoning students use to solve common hybridization theory assessment questions and their mental images of hybrid and atomic orbitals. The data were collected through think-aloud interviews as students worked through a five-question questionnaire. Prior to recruitment, the study was deemed to be exempt from IRB review by Sterling IRB. Prior to start of interviews participants provided verbal consent. The resulting transcripts and answers were analyzed following the practices of grounded theory and constant comparative analysis. Coding schemes can be found in the Supplementary Information section. Results, conclusions, and implications for teaching are presented in the manuscript.</p>

Full-wave electromagnetic modes and hybridization in nanoparticle dimers

The plasmon hybridization theory is based on a quasi-electrostatic approximation of the Maxwell’s equations. It does not take into account magnetic interactions, retardation effects, and radiation losses. Magnetic interactions play a dominant role in the scattering from dielectric nanoparticles. The retardation effects play a fundamental role in the coupling of the modes with the incident radiation and in determining their radiative strength; their exclusion may lead to erroneous predictions of the excited modes and of the scattered power spectra. Radiation losses may lead to a significant broadening of the scattering resonances. We propose a hybridization theory for non-Hermitian composite systems based on the full-Maxwell equations that, overcoming all the limitations of the plasmon hybridization theory, unlocks the description of dielectric dimers. As an example, we decompose the scattered field from silicon and silver dimers, under different excitation conditions and gap-sizes, in terms of dimer modes, pinpointing the hybridizing isolated-sphere modes behind them.

Hybridization of singular plasmons via transformation optics

Surface plasmon resonances of metallic nanostructures offer great opportunities to guide and manipulate light on the nanoscale. In the design of novel plasmonic devices, a central topic is to clarify the intricate relationship between the resonance spectrum and the geometry of the nanostructure. Despite many advances, the design becomes quite challenging when the desired spectrum is highly complex. Here we develop a theoretical model for surface plasmons of interacting nanoparticles to reduce the complexity of the design process significantly. Our model is developed by combining plasmon hybridization theory with transformation optics, which yields an efficient way of simultaneously controlling both global and local features of the resonance spectrum. As an application, we propose a design of metasurface whose absorption spectrum can be controlled over a large class of complex patterns through only a few geometric parameters in an intuitive way. Our approach provides fundamental tools for the effective design of plasmonic metamaterials with on-demand functionality.

EFEKTIVITAS STRATEGI PEMBELAJARAN INDEX CARD MATCH TERHADAP HASIL BELAJAR SISWA PADA SUB MATERI TEORI HIBRIDISASI KELAS XI IPA SMA NEGERI 1 SUNGAI RAYA

The research was based on low learning outcome of XI IPA class student of SMAN 1 Sungai Raya in chemistry especially sub material of hybridization theory. This research aimed to determine difference in learning outcome between student taught by using index card match learning strategies with students taught without using index card match learning in the sub material of hybridization theory class XI IPA of SMAN 1 Sungai Raya. This research used Control Group Pretest-Posttest Design with the research subject was 29 control class students and 28 experiment class student XI IPA class SMAN 1 Sungai Raya. Techniques and data collection tools used learning result test, observation, and interview. The result of data analysis showed that the average value of pretest control class was 38,45 and the average value of posttest class was 52,60 while the average value of pretest experiment class was 21,25 and posttest average value is 75,13. Statistic analysis result U Mann-Whitney test showed the significance value of 0,000 that was smaller than α (0,000 < 0,05) which mean that there are differences in student learning outcome taught by using index card match learning strategy. The amount of increase in learning outcome was known from the calculations effect size value as big as 0,94 in high category as big as 82,64%. Therefore, index card match learning strategy can be applied to sub material hybridization theory to improve student learning outcome