Static and Dynamic Chain Structures in the Mean-Field Theory

We give a brief overview of recent work examining the presence of $\alpha$-clusters in light nuclei within the Skyrme-force Hartree-Fock model. Of special significance are investigations into $\alpha$-chain structures in carbon isotopes and $^{16}$O. Their stability and possible role in fusion reactions are examined in static and time-dependent Hartree-Fock calculations. We find a new type of shape transition in collisions and a centrifugal stabilization of the $4\alpha$ chain state in a limited range of angular momenta. No stabilization is found for the $3\alpha$ chain.Comment: Fusionn 11 Conference, St. Malo, France, 201

Quantum and thermal Casimir interaction between a sphere and a plate: Comparison of Drude and plasma models

We calculate the Casimir interaction between a sphere and a plate, both described by the plasma model, the Drude model, or generalizations of the two models. We compare the results at both zero and finite temperatures. At asymptotically large separations we obtain analytical results for the interaction that reveal a non-universal, i.e., material dependent interaction for the plasma model. The latter result contains the asymptotic interaction for Drude metals and perfect reflectors as different but universal limiting cases. This observation is related to the screening of a static magnetic field by a London superconductor. For small separations we find corrections to the proximity force approximation (PFA) that support correlations between geometry and material properties that are not captured by the Lifshitz theory. Our results at finite temperatures reveal for Drude metals a non-monotonic temperature dependence of the Casimir free energy and a negative entropy over a sizeable range of separations.Comment: 11 pages, 5 figure

Quantal description of nucleon exchange in stochastic mean-field approach

Nucleon exchange mechanism is investigated in central collisions of symmetric heavy-ions in the basis of the stochastic mean-field approach. Quantal diffusion coefficients for nucleon exchange are calculated by including non-Markovian effects and shell structure. Variances of fragment mass distributions are calculated in central collisions of ${}^{40}$Ca + ${}^{40}$Ca, ${}^{48}$Ca + ${}^{48}$Ca and ${}^{56}$Ni + ${}^{56}$Ni systems

Studi Komparatif terhadap Alternatif Teknologi yang Digunakan untuk Menjamin Keberlangsungan Jaringan Komputer di Perguruan Tinggi

Jaringan komputer dalam suatu Perusahaan merupakan aspek kritis yang mendukung berlangsungnya kegiatan operasional Perusahaan terutama dalam hal pertukaran data. Hal ini dianggap kritis karena saat ini data dan informasi merupakan faktor pendukung utama untuk pengembangan dan keberlangsungan bisnis suatu Perusahaan. Hal ini menyebabkan pertukaran data dan informasi dalam internal Perusahaan menjadi proses yang sangat mendukung kegiatan operasional Perusahaan dan dengan pemanfaatan jaringan pertukaran data dapat dilakukan dengan cepat dan aman. Oleh karena itu, keberlangsungan jaringan computer (network continuity) dianggap salah satu aspek penting dalam menjamin keberlangsungan bisnis pada suatu Perusahaan. Terdapat banyak teknologi yang dapat digunakan untuk network continuity. Dalam makalah ini, kami akan memberikan perbandingan antara beberapa teknologi tersebut. Perbandingan tersebut didapatkan dengan literatur pembelajaran terhadap beberapa sumber. Dengan adanya perbandingan untuk setiap teknologi, maka akan dapat diketahui teknologi mana yang cocok untuk diterapkan di perguruan tinggi. &nbsp

Gambaran Gula Darah Darah Pada Remaja Obes Di Minahasa

Obesity is an accumulation of excessive fat that can induce insulin resistance. If that happen, the blood sugar inside body will increase (hyperglycemia). Adolesence is impressionable to globalization of the high – fat and low – fiber diets such fast food or junk food. This reason of increasing prevalence of obesity and risk of diabetes mellitus. Blood sugar examination important to prevent the risk of obesity. Population in this research is all adolescence between 13 to 18 years old at Minahasa. Total of sample quantity are 54 students, which consist of 11 boys and 43 girls. Results that 4 girls (7,4%) are hyperglycemia. 11 boys and 39 girls with normal blood sugar. Mean and standar deviation of blood sugar is 82,2+21. This number can be effected by genetics, diets and physical activity of adolescence. Keywords: blood sugar, obesity, adolescence. Obesitas merupakan akumulasi lemak berlebihan yang dapat menyebabkan terjadinya resistensi insulin. Bila hal ini terjadi, maka gula darah di dalam tubuh meningkat (hiperglikemia). Remaja gampang terpengaruh oleh globalisasi pada pola makan tinggi lemak dan rendah serat seperti fast food atau junk food. Sehingga meningkatkan prevalensi obesitas dan resiko terhadap diabetes mellitus. Populasi dalam penelitian ini adalah remaja obes usia 13 sampai 18 tahun yang berada di Minahasa. Jumlah sampel dalam penelitian ini sebanyak 54 orang, yang terdiri dari 11 laki-laki dan 43 perempuan. Penelitian ini didapatkan 4 siswa perempuan (7,4%) mengalami hiperglikemia. Sebanyak 11 siswa laki-laki dan 39 siswa perempuan mempunyai kadar gula darah dalam batas normal. Nilai rerata dan standar deviasi gula darah puasa adalah 82,2+21. Hasil penelitian dapat disebabkan faktor genetik, pola makan, dan aktivitas fisik remaja yang mudah terpengaruh dengan globalisasi

Analysis of particles size distribution on the agglomeration and shrinkage of alumina-zirconia compacts

The combination of Alumina and Zirconia has emerged as a promising ceramic structure for advance machine tool application. However, the particles of Alumina and Zirconia tend to agglomerate during mixture which affected shrinkage and dimension accuracy of the end product. This study focused on the analysis of the particle size of Alumina-Zirconia compacts and their relationship with the shrinkage and agglomerates. The particles size of single Alumina, Zirconia and ball-milled Alumina-Zirconia with 90-10 wt% ratio were examined by mastersizer. These powders then were compacted and sintered at 1400°C to examine their shrinkage. The results show that Alumina possesses larger particles size of 109.65 μm, which is 10 folds larger than Zirconia at 6.10 μm. When blended by ball mill, the Alumina�Zirconia particles were changed into 9.77 μm, showing that the ball mill to refine powder particles while reducing the risk of agglomeration. After sintering, the Alumina-Zirconia compacts were shrunk to maximum 9.56% when 75-25 wt% of Alumina-Zirconia. The combination of porosity, agglomerate and infiltration of zirconia between alumina grains were responsible for the shrinkage of Alumina-Zirconia compacts

The Effect of Energy Level of Feeding on Daily Gain, Blood Glucose and Urea on Madura Cattle

This study was aimed to evaluate the effect of dietary energy level on daily gain of Madura cattle and their blood metabolites (glucose and blood urea). Twelve (12) male Madura cattle aged at 2 years old, 156.27+6.92 kg (CV 4.43%) of body weight were used in this study which was assigned to completely randomized design for three feeding treatments (low, middle and high energy contents) and four replications. The daily gain was measured for 90 days, while the blood metabolites were measured at the middle of experiment. Results showed that dietary energy levels did not affect (P>0.05) average daily gain, dry matter intake, dry matter digestibility, energy intake and feed conversion ratio. Blood glucose and blood urea concentration were ranged at 67-75 and 35-50 mg/dL, respectively, while feed energy efficiency reached 0.145 MJ/g ADG. In conclusion, high-level energy could not provide better performance in Madura cattle because of a limitation factor on the DMI

Media Sosial dan Revolusi Politik: Memahami Kembali Fenomena Arab Spring dalam Perspektif Ruang Publik Transnasional

This paper aims to analyze some linkages between revolution, public sphere, and transnational activism through social media in the Middle East. A revolution in Tunisia in 2011 became an international issue after the revolution spreaded to other states in the region. After Tunisia, protest movements began to ignite in Egypt, Libya, Yemen, and Jordania. This wave of revolution comes into a public discourse: what causes this movement? How could a revolution in one country inspire another revolution in another country? To answer these questions, we analyze the role of social media as a bridge to connect activists in the Middle East to make a revolution. We conclude that transnational activism was formed by routine and massive reports from media which explained what hadhappened in the Middle East during the revolution. The reports were followed by a spread of the idea of democracy and civil rights through social media. As a consequence, revolution took place in several other countries whose socio-cultural tradition are similar to that of Tunisia