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Teacher Shortages: What Are We Short Of?
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| Pengarang | : | - |
| Nama Majalah/Jurnal | : | Journal of Teacher Education |
| Volume / Edisi | : | 74 (No. 3) |
| Halaman | : | 209-213 |
| Abstrak | : | Abstrak tidak tersedia. |
Experimental verification of the adiabatic transfer in Wilberforce pendulum normal modes
| Pengarang | : | - |
| Nama Majalah/Jurnal | : | American Journal of Physics |
| Volume / Edisi | : | 86 (No. 11) |
| Halaman | : | 818–824 |
| Abstrak | : | A pendulum bob has been constructed to experimentally probe the adiabatic transfer in the normal modes of a Wilberforce pendulum. The rotational inertia of the pendulum bob can be changed during its motion in order to follow the gradual transition from a pure translational to a pure rotational oscillation. The reported extension of the conventional use of the Wilberforce pendulum helps understand and demonstrate the concept of normal modes, coupled oscillators, beating, and avoided crossing in undergraduate university classes. |
Resource Letter PB-1: The Physics of the Brain
| Pengarang | : | - |
| Nama Majalah/Jurnal | : | American Journal of Physics |
| Volume / Edisi | : | 86 (No. 11) |
| Halaman | : | 805–817 |
| Abstrak | : | This Resource Letter provides an overview of the literature relating physicists' past, present, and future contributions to our understanding of the brain. It is intended as a starting point for upper-level physics students and physicists who are interested in learning about and/or investigating the brain. Topics include the biophysics of individual neurons, models of learning and memory, structure and dynamics of brain networks, brain-inspired computing hardware, and the possible role that quantum mechanics may play in brain function. |
PRINSIP STRUKTUR SENJA KALA YAHYA YANG MEMBINGUNGKAN: SUATU TANGGAPAN
| Pengarang | : | Djoko Utomo |
| Nama Majalah/Jurnal | : | Berita Arsip Nasional RI |
| Volume / Edisi | : | -/25, MARET (No. 25) |
| Halaman | : | 5-8 |
| Abstrak | : | - |
MENCARI BENTUK SKEMA INVENTARIS ARSIP (STATIS) INDONESIA
| Pengarang | : | - |
| Nama Majalah/Jurnal | : | Berita Arsip Nasional RI |
| Volume / Edisi | : | -/25, MARET (No. 25) |
| Halaman | : | 1-4 |
| Abstrak | : | - |
An apparatus for measuring a material's photomechanical response
| Pengarang | : | - |
| Nama Majalah/Jurnal | : | American Journal of Physics |
| Volume / Edisi | : | 86 (No. 12) |
| Halaman | : | 943–952 |
| Abstrak | : | This paper describes a simple and inexpensive apparatus for measuring the light-induced shape change of a material, which can be implemented in a high school or undergraduate laboratory. The key components of the apparatus are a laser pointer to actuate the material, a force sensor from an inexpensive jeweler's balance to measure the response, an Arduino for data acquisition, and a means for mechanically mounting the setup. The apparatus described here was used by high school students and teachers in a summer program to characterize liquid crystal elastomer samples. The theory of photomechanical response is used to interpret the gathered data, from which material parameters related to this theory are determined. |
Learning to notice science concepts in engineering activities and transfer situations
| Pengarang | : | Catherine C. Chase, Laura Malkiewich, Aakash S. Kumar |
| Nama Majalah/Jurnal | : | Science Education |
| Volume / Edisi | : | 103 (No. 2) |
| Halaman | : | 440-471 |
| Abstrak | : | A persistent problem in engineering-focused science instruction is the “design–science gap,” whereby learners focus on building successful engineering products, instead of focusing on the relevant scientific principles. This research explores (a) whether integrating contrasting cases into engineering activities can impact how deeply learners notice scientific structures both within the engineering task and in novel transfer contexts, and (b) whether the perceptual process of noticing is related to task performance and transfer. In Study 1, 41 adults designed and built a Lego cantilever, which relates to the physics concept center-of-mass. Learners who analyzed contrasting cases that highlighted the underlying structure of center-of-mass noticed that structure more deeply, compared with a no cases condition. Although both conditions performed similarly on the engineering task, learners who noticed on a deeper level performed better, regardless of condition. In a second study with 63 adults, the same two conditions were compared with a single cases condition. The contrasting cases condition demonstrated superior transfer to near but novel contexts. Moreover, noticing predicted performance and far transfer, regardless of condition. Results imply that (a) contrasting cases enhance near transfer from engineering activities and (b) noticing plays a key role in performance in and transfer from engineering activities. |
How do middle school girls of color develop STEM identities Middle school girls participation in science activities and identification with STEM careers
| Pengarang | : | Hosun Kang, Angela Calabrese Barton, Edna Tan, Sandra D. Simpkins, Hyang-yon Rhee, Chandler Turner |
| Nama Majalah/Jurnal | : | Science Education |
| Volume / Edisi | : | 103 (No. 2) |
| Halaman | : | 418-439 |
| Abstrak | : | This study explores ways to support girls of color in forming their senses of selves in science, technology, engineering, and math (STEM) during the middle school years. Guided by social practice theory, we analyzed a large data set of survey responses (n = 1,821) collected at five middle schools in low-income communities across four states in the United States. Analyses focus on the extent to which key constructs that inform girls’ development of senses of self and relations among those indicators of STEM identities varied by their race/ethnicity. Though the means of indicators sometimes varied across racial/ethnic groups, multigroup structural equation modeling analyses indicate no significant racial/ethnic differences in the relations of STEM identities, suggesting that similar supports would be equally effective for all girls during the middle school years. Girls’ self-perception in relation to science was the strongest predictor of their identification with STEM-related careers, and this self-perception was positively and distinctively associated with their experiences with science at home, outside of school, and in school science classes. This study argues for strategically expanding girls’ experiences with science across multiple settings during middle school in a way that increases their positive self-perception in and with STEM. |
No Shadow of a Doubt: The 1919 Eclipse that Confirmed Einstein's Theory of Relativity
| Pengarang | : | Alexei Kojevnikov |
| Nama Majalah/Jurnal | : | American Journal of Physics |
| Volume / Edisi | : | 87 (No. 10) |
| Halaman | : | 851–852 |
| Abstrak | : | A heroic myth ingrained in popular memory describes the British astronomer Arthur Eddington leading an expedition to observe the total solar eclipse of May 1919. The photos he took on the African island of Principe definitively confirmed the fundamental prediction of Einstein's general theory of relativity that the Sun's massive body gravitationally deflects the light coming from distant stars. His colleagues who travelled to Sobral in Brazil were not as lucky with their photographs. Back in London, Eddington's announcement of his results in November 1919 provided the experimentum crucis, which convinced astronomers to accept Einstein's revolutionary theory of gravitation. The German theory proven correct by the British astronomer healed the wounds of WWI that had damaged international cooperation in science. Newspapers made Einstein a rock star both among the scientists and the general public. Since the 1970s, various parts of this myth (except the very last sentence) were challenged... |
PEMELIHARAAN DAN PERAWATAN KERTAS SEBAGAI BAHAN ARSIP
| Pengarang | : | - |
| Nama Majalah/Jurnal | : | Berita Arsip Nasional RI |
| Volume / Edisi | : | -/26, JUNI (No. 26) |
| Halaman | : | 23-30 |
| Abstrak | : | - |