Hasil OSN SMA 2012

Berikut ini adalah daftar nama peserta OSN SMA 2012 tingkat Nasional.
Selamat bagi siswa siswa SMAN Sragen Bilingual Boarding School. Go Get Gold!!!
Daftar Peserta OSN SMA 2012 dan Undangan

source : http://siswapsma.org/

Jawa Tengah Berjaya di OSN SMP

Prof. Suyanto, Ph.D berpose bersama para peraih medali emas, Selasa (3/7/2012). 

Pontianak (Dikdas): Provinsi Jawa Tengah kembali menunjukkan kedigdayaannya di ajang Olimpiade Sains Nasional jenjang Sekolah Menengah Pertama. Para delegasi provinsi di tengah Pulau Jawa ini membuktikan kepiawaiannya di empat lomba bidang sains; matematika, IPS, biologi, dan fisika. 

Jawa Tengah berhasil mengoleksi lima medali emas, 16 perak, dan 15 perunggu. Jawa Timur mengantongi lima emas, 11 perak, dan sembilan perunggu. Menyusul DKI Jakarta diurutan ketiga dengan lima emas, tiga perak, dan 11 perunggu. Jawa Barat dan Banten berturut-turut duduk di posisi keempat dan kelima. Dengan perolehan medali tersebut, Jawa Tengah berhak menyandang predikat juara umum jenjang SMP.

Perolehan Medali OSN 2012 jenjang SMP

Provinsi	Emas	Perak	Perunggu
Jawa Tengah	5	16	15
Jawa Timur	5	11	9
DKI Jakarta	5	3	11
Jawa Barat	2	2	10
Banten	2	-	2

Pada penyelenggaran OSN 2011 yang digelar di Manado, Sulawesi Utara, perolehan medali keseluruhan menunjukkan Jawa Tengah sebagai juara umum. Mereka mengantongi 21 emas, 29 perak, dam 29 perunggu. Disusul posisi berikutnya secara berturut-turut DKI Jakarta, Jawa Timur, Jawa Barat, dan Banten.

Perolehan Medali OSN 2011

Provinsi	Emas	Perak	Perunggu
Jawa Tengah	21	29	29
DKI Jakarta	20	32	34
Jawa Timur	11	22	30
Jawa Barat	6	13	17
Banten	4	12	15

Dengan keleksi medali sebanyak itu, Jawa Tengah berpeluang besar untuk kembali menjadi juara umum OSN 2012 dan memboyong piala bergilir Menteri Pendidikan dan Kebudayaan. Disusul empat provinsi lainnya yang kesemuanya berada di Pulau Jawa.* (Billy Antoro) 

http://dikdas.kemdiknas.go.id

Hasil OSN SMP 2012

Alhamdulillah SMPN Sragen Bilingual Boarding School berhasil meraih 2 medali pada ajang OSN 2012. Berikut adalah daftar perolehan medali SMPN SBBS.
Matematika, Medali Perak, diraih oleh Aji Luhur Bhakti Imanudin Firdaus
Fisika, Medali Perunggu, diraih oleh Tohari Catur Pamungkas

Semoga ditahun 2013, SMPN SBBS dapat menorehkan prestasi yang lebih baik lagi. Amin...

Doa untuk Siswa SBBS yang akan berjuang di OSN SMP....

Alhamdulillah...
3 Siswa SMPN SBBS sampai di Pontianak kemarin malam (28 Juni 2012)
Esok dan Lusa mereka akan mengikuti Ujian OSN SMP...
Kami mengharap DOA dari semuanya 
Semoga ALLAH SWT memberikan mereka Kemudahan dan Hasil yang terbaik dalam OSN 2012... Amin...

Kalender Pendidikan Tahun Pelajaran 2012/2013

Berikut adalah Kalender Pendidikan tahun Pelajaran 2012/2013
Semoga dapat bermanfaat...
Kalender Pendidikan 2012/2013

Discovery of Material With Amazing Properties

ScienceDaily (June 24, 2012) — Normally a material can be either magnetically or electrically polarized, but not both. Now researchers at the Niels Bohr Institute at the University of Copenhagen have studied a material that is simultaneously magnetically and electrically polarizable. This opens up new possibilities, for example, for sensors in technology of the future. The results have been published in the scientific journal, Nature Materials.

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The "8-armed candlestick" in this unusual image of the measurements is proof that the "walls" of the domains in TbFeO3 repel each other at certain temperatures and therefore lie at a fixed distance from each other. The signal from the "ordinary" chaotic domain walls would more resemble a fly swatter. (Credit: Niels Bohr Institute)

 

Materials that can be both magnetically and electrically polarized and also have additional properties are called multiferroics and were previously discovered by Russian researchers in the 1960s. But the technology to examine the materials did not exist at that time. It is only now, in recent years, that researchers have once again focused on analyzing the properties of such materials. Now you have research facilities that can analyze the materials down to the atomic level.
Surprising test results
"We have studied the rare, naturally occurring iron compound, TbFeO3, using powerful neutron radiation in a magnetic field. The temperature was cooled down to near absolute zero, minus 271 C. We were able to identify that the atoms in the material are arranged in a congruent lattice structure consisting of rows of the heavy metal terbium separated by iron and oxygen atoms. Such lattices are well known, but their magnetic domains are new. Normally, the magnetic domains lie a bit helter-skelter, but here we observed that they lay straight as an arrow with the same distance between them. We were completely stunned when we saw it," explains Kim Lefmann, Associate Professor at the Nano-Science Center, University of Copenhagen.
They were very strange and very beautiful measurements and it is just such a discovery that can awaken the researchers' intense interest. Why does it look like this?
Explaining physics
The experiments were conducted at the neutron research facility Helmholtz-Zentrum in Berlin in collaboration with researchers in Holland, Germany, at ESS in Lund and at Risø/DTU. They would like to get a general understanding of the material and with the help of calculations; and have now arrived at a more precise image of the relationship between the structure of the material and its physical properties.
"What the models are describing is that the terbium walls interact by exchanging waves of spin (magnetism), which is transferred through the magnetic iron lattice. The result is a Yukawa-like force, which is known from nuclear and particle physics. The material exhibits in a sense the same interacting forces that hold the particles together in atomic nuclei," explains Heloisa Bordallo, Associate Professor at the Niels Bohr Institute.
It is precisely this interaction between the transition metal, iron, and the rare element, terbium, that plays an important role in this magneto-electrical material. The terbium's waves of spin cause a significant increase in the electric polarization and the interaction between the ions of the elements creates one of the strongest magneto-electrical effects observed in materials.
"Through these results we found a new pathway to discover and develop new multiferroics," emphasize the researchers in the group. Now it is up to further research to determine whether this new effect could lead to new applications of these materials with the amazing physical properties.

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Story Source:

The above story is reprinted from materials provided by University of Copenhagen, via EurekAlert!, a service of AAAS.
Note: Materials may be edited for content and length. For further information, please contact the source cited above.

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Journal Reference:

1. Sergey Artyukhin, Maxim Mostovoy, Niels Paduraru Jensen, Duc Le, Karel Prokes, Vinícius G. de Paula, Heloisa N. Bordallo, Andrey Maljuk, Sven Landsgesell, Hanjo Ryll, Bastian Klemke, Sebastian Paeckel, Klaus Kiefer, Kim Lefmann, Luise Theil Kuhn, Dimitri N. Argyriou. Solitonic lattice and Yukawa forces in the rare-earth orthoferrite TbFeO3. Nature Materials, 2012; DOI: 10.1038/nmat3358

Jawa Tengah Juara Umum Festival dan Lomba Seni Siswa Nasional (FLS2N) Tahun 2012

Untuk melihat dokumentasi Festival dan Lomba Seni Siswa Nasional (FLS2N) Tahun 2012 silahkan klik gambar di bawah ini.

 
http://pdkjateng.go.id/