Синтез моделей діалогового інтерфейсу управління процесами навчання в інтелектуальних тренажерах

Розглянуто підстави синтезу мультимедійних діалогових комплексів в АІС призначених для відображення динамічних ситуацій з використанням СППР для управління інтелектуальними тренажерами

Hubungan Ukuran Testis terhadap Motilitas dan Viabilitas Spermatozoa Babi Landrace dan Babi Duroc

Pertumbuhan populasi babi di Indonesia disetiap daerah dari tahun ke tahun mengalami peningkatan. Testis berfungsi menghasilkan spermatozoa dan hormon testosteron. Penelitian ini bertujuan untuk mengetahui pengaruh ukuran testis terhadap kualitas spermatozoa babi Landrace dan babi Duroc dengan umur berkisar 2-4 tahun. Penelitian yang digunakan adalah penelitian eksperimental meliputi pengukuran testis dan evaluasi semen secara makroskopis dan mikroskopis. Data mikroskopis yang diperoleh dianalisis secara deskriptif. Hasil penelitian rerata evaluasi semen babi Landrace secara mikroskopis menunjukkan motilitas 82.5±0.00 % dan viabilitas 88.7±0.00 %, sedangkan evaluasi makroskopis semen babi Duroc menunjukka motilitas 82.5±0.00 % dan viabilitas 88.6±0.00 %. Hasil rerata ukuran panjang testis babi Landrace bagian kiri 12.66 ± 3.0 cm, bagian kanan 14.00 ± 1.0 cm, lebar testis bagian kiri 7.66 ± 2.081 cm, bagian kanan 8.00±0.00 cm. Babi Duroc memiliki panjang testis kiri 16.66 ± 5.507 cm, panjang testis kanan 13.66 ± 3.21cm , lebar testis bagian kiri 8.3 ± 2.020 cm dan lebar testis bagian kanan 8.5 ± 1.5 cm. Dapat disimpulkan bahwa tidak terdapat perbedaan ukuran testis ternak babi  Landrace dan Duroc nyata terhadap motilitas dan viabilitas spermatozoa (p>0.05) kedua jenis babi tersebut

Daya Tahan Spermatozoa Dalam Semen Cair Babi Landrace Pada Metode Penyimpanan Berbeda

Tujuan dilaksanakan penelitian ini untuk melihat pengaruh metode penyimpanan preservasi yang berbeda terhadap viabilitas spermatozoa semen babi landrace dalam pengencer alami air buah lontar (AL) dengan penambahan kuning telur ayam kampung (KT).  Semen diambil dari 5 ekor pejantan landrace yang telah dewasa kelamin. Setelah itu dilakukan pemeriksaan makros-mikros dari semen segar, semen dengan kriteria  motilitas , konsentrasi dan abnormalitas spermatozoa berturt-turut: >70%, >200 juta spermatozoa/ml, <20% yang layak untuk dijadikan semen cair. Perlakuan dalam penelitian:, P1(AL 95%+5% KT), P2(AL 85%+15% KT), P3(AL 75%+25% KT) yang simpan pada metode water jacket (WJ) dan P4(AL 95%+5% KT), P5(AL 85%+15% KT), P6(AL 75%+25% KT) yang disimpan dengan metode non water jacket (NWJ),  semen dikemas dalam mikrotube 1 ml dan disimpan pada suhu preservasi. Pada penelitian ini menunjukkan bahwa viabilitas spermatozooa dalam pengencer alami air buah lontar yang ditambahkan dengan kuning telur ayam kampung memperlihatkan hasil yang baik pada kombinasi AL 85% dan KT25% pada penyimpanan water jacket.  Semen cair pada pengencer kombinasi tersebut diatas mampu bertahan hingga 28 jam penyimpanan

Exploring the String Axiverse with Precision Black Hole Physics

It has recently been suggested that the presence of a plenitude of light axions, an Axiverse, is evidence for the extra dimensions of string theory. We discuss the observational consequences of these axions on astrophysical black holes through the Penrose superradiance process. When an axion Compton wavelength is comparable to the size of a black hole, the axion binds to the black hole "nucleus" forming a gravitational atom in the sky. The occupation number of superradiant atomic levels, fed by the energy and angular momentum of the black hole, grows exponentially. The black hole spins down and an axion Bose-Einstein condensate cloud forms around it. When the attractive axion self-interactions become stronger than the gravitational binding energy, the axion cloud collapses, a phenomenon known in condensed matter physics as "Bosenova". The existence of axions is first diagnosed by gaps in the mass vs spin plot of astrophysical black holes. For young black holes the allowed values of spin are quantized, giving rise to "Regge trajectories" inside the gap region. The axion cloud can also be observed directly either through precision mapping of the near horizon geometry or through gravitational waves coming from the Bosenova explosion, as well as axion transitions and annihilations in the gravitational atom. Our estimates suggest that these signals are detectable in upcoming experiments, such as Advanced LIGO, AGIS, and LISA. Current black hole spin measurements imply an upper bound on the QCD axion decay constant of 2 x 10^17 GeV, while Advanced LIGO can detect signals from a QCD axion cloud with a decay constant as low as the GUT scale. We finally discuss the possibility of observing the gamma-rays associated with the Bosenova explosion and, perhaps, the radio waves from axion-to-photon conversion for the QCD axion.Comment: 54 pages, 15 figures; v2: PRD version, small correction in eq. 48 and 53 as well as fig. 10, conclusions unchange

Bound states of the Dirac equation on Kerr spacetime

We formulate the Dirac equation for a massive neutral spin-half particle on a rotating black hole spacetime, and we consider its (quasi)bound states: gravitationally-trapped modes which are regular across the future event horizon. These bound states decay with time, due to the absence of superradiance in the (single-particle) Dirac field. We introduce a practical method for computing the spectrum of energy levels and decay rates, and we compare our numerical results with known asymptotic results in the small-Mμ and large-Mμ regimes. By applying perturbation theory in a horizon-penetrating coordinate system, we compute the 'fine structure' of the energy spectrum and find good agreement with numerical results. We obtain data for a hyperfine splitting due to black hole rotation. We evolve generic initial data in the time domain, and show how Dirac bound states appear as spectral lines in the power spectra. In the rapidly-rotating regime, we find that the decay of low-frequency co-rotating modes is suppressed in the (bosonic) superradiant regime. We conclude with a discussion of physical implications and avenues for further work

Karakteristik Morfologi dan Distribusi Karbohidrat Netral pada Uterus Kelelawar Buah (Pteropus Vampyrus) Asal Pulau Timor

Timorese fruit bat(Pteropusvampyrus)is the only fly mammalian with its unique behavior which hanging upside down inspite of its pregnancy. This research is aimed to reveal the morphology of the Timorese fruit bats and the distribution of neutral carbohydrate within this organ. Three uterus samples derived from three different Timorese fruit bats were used in the research.Both macroscopical and microscopical examinations using H&E and PAS methods were applied. Macroscopically, Timorese fruit bats showedsoft reddish white duplex uterus. Meanwhile microscopically, endometrium consisted of epithelial layer and lamina propria and was the place where simple tubular glands located. The epithelial layer comprised of simple cylindric secretory cells and ciliated cells. Neutral carbohydrate distribution was seen within this epithelial layer. Myometrium was a thick circular smooth muscle layer which consisted of smooth muscle separated by collagen and elastic fibre. Perimetrium was a visceral layer and consisted of mesothelial cells