99 research outputs found

    Aplikasi Pembelajaran Tentang Ular Di Indonesia Berbasis Android

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    Indonesia is the largest archipelago country in the world. Every island in Indonesia has a variety of different biological. Variety of biological diversity in Indonesia is also one of the largest in the world. Various types of flora and fauna which adorn every island in Indonesia into a separate icon for each island. One of the existing biodiversity in Indonesia is the type of snake. Indonesia has approximately 20% of the snakes scattered in every island. Such varieties include size, color, and the level of spreading in Indonesia. For all sorts of information about the snakes that exist today is still fairly quite minimal. Books that discuss the types of snakes are still relatively minimal. As the smartphone now has become part of every society, the book was gradually being abandoned. Therefore, the objective of this research is to create an application that can help provide information about snakes in Indonesia with more ease.In this research, the creation of applications of learning about snakes in Indonesia based on Android, which is one smartphone operating system that is used in many circles. This app has a feature that can help users, especially information about snakes, handling and handle snake bites, as well as a variety of other additional information.Based on the results of the implementation and testing is done, the application can provide information about snakes accompanied by photographs and spreading displayed with a map, a brief description and video handling snake bites and how to handle, question and answer forum for sharing information, as well as the provision of other additional information. With this application users can use the information to increase knowledge

    Expression of the SST receptor 2 in uveal melanoma is not a prognostic marker

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    Introduction: Uveal melanoma (UM) cells and neurohormone-producing cells both originate from the neural crest. Somatostatin receptors subtype 2 (SSTR2) are over-expressed in several tumors, often from neuroendocrine origin, and synthetic antagonists like octreotide and octreotate are being used as diagnostic or therapeutic agents. We investigated the SSTR2 expression in UM, and determined whether this expression was related to prognosis of the disease. Materials and methods: UM cell lines and fresh primary UM samples were tested for SSTR2 expression by autoradiography (AR) using 125I-Tyr3-octreotate. Furthermore, UM cell lines were analyzed for SSTR2 mRNA expression with quantitative real-time RT-PCR. Results: Using AR, cell-surface SSTR2 expression was demonstrated in two UM metastatic cell lines, but no expression was detected in three cell lines derived from primary UM. However, all primary and metastatic UM cell lines showed mRNA expression levels for SSTR2 using quantitative real-time RT-PCR. Only three of 14 primary UM demonstrated moderate SSTR2 expression, and this expression was not significantly associated with tumor-free survival or any tested prognostic factor. Conclusions: Based on the rare and low expression of SSTR2 found in primary UM specimens and in UM cell lines, we conclude that SSTR2 is not widely expressed in UM. Furthermore, SSTR2 expression was not associated with tumor-free survival and prognostic factors. Therefore SSTR2 is not suited as prognostic marker or therapeutic target in UM

    Local-Scale Patterns of Genetic Variability, Outcrossing, and Spatial Structure in Natural Stands of Arabidopsis thaliana

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    As Arabidopsis thaliana is increasingly employed in evolutionary and ecological studies, it is essential to understand patterns of natural genetic variation and the forces that shape them. Previous work focusing mostly on global and regional scales has demonstrated the importance of historical events such as long-distance migration and colonization. Far less is known about the role of contemporary factors or environmental heterogeneity in generating diversity patterns at local scales. We sampled 1,005 individuals from 77 closely spaced stands in diverse settings around Tübingen, Germany. A set of 436 SNP markers was used to characterize genome-wide patterns of relatedness and recombination. Neighboring genotypes often shared mosaic blocks of alternating marker identity and divergence. We detected recent outcrossing as well as stretches of residual heterozygosity in largely homozygous recombinants. As has been observed for several other selfing species, there was considerable heterogeneity among sites in diversity and outcrossing, with rural stands exhibiting greater diversity and heterozygosity than urban stands. Fine-scale spatial structure was evident as well. Within stands, spatial structure correlated negatively with observed heterozygosity, suggesting that the high homozygosity of natural A. thaliana may be partially attributable to nearest-neighbor mating of related individuals. The large number of markers and extensive local sampling employed here afforded unusual power to characterize local genetic patterns. Contemporary processes such as ongoing outcrossing play an important role in determining distribution of genetic diversity at this scale. Local “outcrossing hotspots” appear to reshuffle genetic information at surprising rates, while other stands contribute comparatively little. Our findings have important implications for sampling and interpreting diversity among A. thaliana accessions

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