Pengaruh Kegiatan Wisata terhadap Perubahan Penggunaan Lahan di Kecamatan Tawangmangu, Kabupaten Karanganyar

Karanganyar is one of regency in Central Java province which it's potential tourist destinations are quite diverse. Nature destinations is one of the tourism assets which commonly found in Karanganyar, facts shown that the existing landscape conditions vary widely from highland terrain to the landscape of coastal lowland forest. Tourism sector contributes in a significance economic scale towards local incomes of Karanganyar Regency. One district which became the center of tourism activities development is Tawangmangu. Tawangmangu district has an integrated tourism destination named Kawasan Wisata Tawangmangu, which consist of several tourism place option like Grojogan Sewu Waterfall, Sapta Tirta, Campgrounds Sekipan, and Taman Ria Balekambang. Because it is the main area of tourism destination in Karanganyar, adequate infrastructure is available and regularly upgraded in the annual basis, because those improvements is needed to support massive tourism activities which might occurred. With the tourism activities development such as newly constructed infrastructure or addition of a few supporting facilities will certainly give effect to the land use transformation of those aforementioned surroundings. This study aimed to analyze the effects of tourism activities towards land use transformation and analyze the causes of changes regarding land use in the Tawangmangu District. In the process of answering these objectives, this study used descriptive qualitative approach. Research on the effects of tourism activities is based on four main analysis, which is tourism characteristic activities, land use transformation, effects of tourism activities towards land use transformation, and the causes of effect of land use transformation. From those four baseline analysis, result shows that tourism activities which has been occurred so far only affects certain areas of Kalisoro, Tawangmangu, and Blumbang. As for the case of land use transformation, in other villages they are not affected by the existence of tourism activities. Besides tourism, land use transformation in the Tawangmangu District also caused by environmental quality, land values, accessibility, also availability of basic decent facilities and infrastructure

Pericentromeric heterochromatin is hierarchically organized and spatially contacts H3K9me2 islands in euchromatin.

Membraneless pericentromeric heterochromatin (PCH) domains play vital roles in chromosome dynamics and genome stability. However, our current understanding of 3D genome organization does not include PCH domains because of technical challenges associated with repetitive sequences enriched in PCH genomic regions. We investigated the 3D architecture of Drosophila melanogaster PCH domains and their spatial associations with the euchromatic genome by developing a novel analysis method that incorporates genome-wide Hi-C reads originating from PCH DNA. Combined with cytogenetic analysis, we reveal a hierarchical organization of the PCH domains into distinct territories. Strikingly, H3K9me2-enriched regions embedded in the euchromatic genome show prevalent 3D interactions with the PCH domain. These spatial contacts require H3K9me2 enrichment, are likely mediated by liquid-liquid phase separation, and may influence organismal fitness. Our findings have important implications for how PCH architecture influences the function and evolution of both repetitive heterochromatin and the gene-rich euchromatin

"Colliding beam" enhancement mechanism of deuteron-deuteron fusion reactions in matter

We suggest a ``ping-pong'' mechanism of enhancement for fusion reactions between a low energy external deuteron beam and the deuterons in a condensed matter or molecular target. The mechanism is based on the possibility of acceleration of a target deuteron by the Coulomb field of a projectile deuteron with its subsequent rebound from a heavy atom in matter and the following fusion of the two deuterons moving towards each other. This effectively converts the fixed target process into a colliding beam reaction. In a simple limiting case this reduces the negative penetrability exponent by a factor of $\sqrt{2}$. We also discuss a contribution given by ``zero oscillations'' of a bound target deuteron. The proposed mechanism is expected to be efficient in compounds with target deuterons localized in the vicinity of heavy atoms.Comment: 4 page

Quantum tunneling of a complex systems: effects of finite size and intrinsic structure

A simple model is considered to study the effects of finite size and internal structure in the tunneling of bound two-body systems through a potential barrier. It is demonstrated that these effects are able to increase the tunneling probability. Applications may include nuclear fusion,hydrogen atom and Cooper pair tunneling.Comment: 9 page

Ruggedized Color Measurement for Beer, Wort, and Malt

The standard instrument for measuring malt, wort, and beer color is the spectrophotometer. Spectrophotometers are not rugged; they have critically aligned collimators, monochromators, lenses, slits, and mirrors that make them difficult to use and maintain in a production environment. Our research shows that wort and beer color can be measured accurately with rugged equipment based on light emitting diodes (LEDs) with results in agreement with those of a spectrophotometer. Two or more colored diodes were used. LED-based apparatus does not require critical alignment, is not highly sensitive to environmental conditions such as temperature, moisture, dust, and vibration, and can be rapid, inexpensive, compact, rugged, and easy to use. Statistical comparison in the range of 1–9 °SRM shows an insignificant bias for (SRM–LED) of −0.06 ± 0.4 °SRM. The intraclass correlation coefficient for the differences was 0.9952

Monotonicity for Multiobjective Accelerated Proximal Gradient Methods

Accelerated proximal gradient methods, which are also called fast iterative shrinkage-thresholding algorithms (FISTA) are known to be efficient for many applications. Recently, Tanabe et al. proposed an extension of FISTA for multiobjective optimization problems. However, similarly to the single-objective minimization case, the objective functions values may increase in some iterations, and inexact computations of subproblems can also lead to divergence. Motivated by this, here we propose a variant of the FISTA for multiobjective optimization, that imposes some monotonicity of the objective functions values. In the single-objective case, we retrieve the so-called MFISTA, proposed by Beck and Teboulle. We also prove that our method has global convergence with rate $O(1/k^2)$, where $k$ is the number of iterations, and show some numerical advantages in requiring monotonicity.Comment: - Added new numerical experiment

Kasagi et al. Reply:

Bremsstrahlung in α Decay of 210Po: Do α Particles Emit Photons in Tunneling?(http://hdl.handle.net/10097/35812)(Comment