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"The study on characterization of red snapper (Latjunas malabaricus LUTJANIDAE) population based on mtDNA polymorphism in north coast of Java has been done...."

"The biological diversity of the planet is being rapidly depleted due to the direct and indirect consequences of human activity. As the size of animal and plant populations decrease and fragmentation increases, loss of genetic diversity reduces their ability to adapt to changes in the environment, with inbreeding and reduced fitness inevitable consequences for many species. Many small isolated populations are going extinct unnecessarily. In many cases, such populations can be genetically rescued by gene flow into them from another population within the species, but this is very rarely done. This novel and authoritative book addresses the issues involved in genetic management of fragmented animal and plant populations, including inbreeding depression, loss of genetic diversity and elevated extinction risk in small isolated populations, augmentation of gene flow, genetic rescue, causes of outbreeding depression and predicting its occurrence, desirability and implementation of genetic translocations to cope with climate change, and defining and diagnosing species for conservation purposes."

"This book draws together some mathematical ideas that are useful in population genetics, concentrating on a few aspects which are both biologically relevant and mathematically interesting."

"Mathematical theories of populations have appeared both implicitly and explicitly in many important studies of populations, human populations as well as populations of animals, cells and viruses. They provide a systematic way for studying a population's underlying structure. A basic model in population age structure is studied and then applied, extended and modified, to several population phenomena such as stable age distributions, self-limiting effects, and two-sex populations. Population genetics are studied with special attention to derivation and analysis of a model for a one-locus, two-allele trait in a large randomly mating population. The dynamics of contagious phenomena in a population are studied in the context of epidemic diseases."

"Rumor merupakan bentuk interaksi sosial yang penting dalam bermasyarakat dan penye- barannya berdampak besar bagi kehidupan manusia. Dalam skripsi ini, penulis mengem- bangkan model matematika berdasarkan model dengan kompartemen Susceptible- Infective-Counter-Refractory (SICR) untuk memahami bagaimana suatu rumor menyebar dalam suatu populasi. Model dibentuk dengan menambahkan laju kelahiran, laju kema- tian, dan intervensi dari pemerintah untuk mengurangi penyebaran rumor. Dilakukan analisis mengenai keberadaan dan stabilitas lokal dari setiap titik ekuilibrium model, baik secara analitik maupun numerik. Selanjutnya, ditunjukkan bagaimana nilai basic repro- duction number dari model memegang peran penting dalam perilaku kualitatif model. Ditemukan bahwa kebijakan dari pemerintah untuk menekan penyebaran rumor sangat penting dalam dinamika penyebaran rumor di masyarakat. Beberapa simulasi numerik dilakukan mengenai analisis sensitivitas dan simulasi autonomus untuk melihat peruba- han setiap kompartemen pada model terhadap waktu. Dari simulasi yang dilakukan dida- patkan bahwa, terdapat nilai kritis untuk masing-masing parameter yang menggambarkan laju intervensi pemerintah dan laju intensitas kontak sosial antara individu rentan dengan individu yang menyebarkan rumor, dimana nilai kritis tersebut menjadi ambang batas, se- hingga jika nilai parameter melewati ambang batasnya rumor akan tersebar di populasi.

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Rumor is an important form of social interaction in society and its spread has a major impact on human life. In this thesis, we will develop a mathematical model based on Susceptible-Infective-Counter-Refractory (SICR) compartment model. We modify the model by including the birth rate, mortality rate, an intervention from the government to reduce the spread of rumors. We conduct a dynamic analysis regarding the existence and local stability of each equilibrium point of the model. Furthermore, we show how the corresponding basic reproduction number holds an important role in these qualitative behaviors. We find that a massive policy from the government suppressing the spread of rumors is crucial in the dynamic of the rumor among the population. Some numerical simulations were conducted regarding the sensitivity analysis and autonomous simulation to see the evolution of each compartment on our model with respect to time. The sim- ulation shows that there is a critical value for each of the parameters that describe the government intervention and the intensity of social contact between Susceptible individ- uals and Infective individuals that become the threshold, where if it passes the threshold, the rumor will spread in the population."

"Penelitian migrasi dan penghunian manusia kuno di Indonesia masih memunculkan perdebatan sampai kini, baik dari perspektif antropologi biologis, genetika manusia atau erkeologis. Perdebatan itu selalu membuka ruang lagi untuk melakukan penelitian perihal itu. Kali ini konsentrasi penelitian terhadap sampel Bali kuno yakni temuan sisa-sia manusia dari Gilimanuk dan Semawang. Bali merupakan pulau yang terletak di tengah gugusan kepulauan Indonesia dimana mewakili jalur besar migrasi dan persebaran manusia seturt rute pulau-pulau busur luarnya. Penelitian ini bertujuan untuk mendeskripsikan variasi genetik manusia kuno dari dua situs arkeologis Bali itu. Hasil penelitian ini dengan merujuk semua kemungkinan aspek arkeologis dan antropologi biologisnya makin memperkaya khazanah pengetahuan tentang migrasi manusia di Indonesia sekitar masa Neolitik, yang menjadi awal makin masifnya migrasi mongoloid ke kawasan nusantara. Hasil penelitian ini juga makin menguatkan hasil penelitian genetika populasi Bali sebelumnya bahwa populasi disana sejak neolitik sampai akhir masa yang lebih resen diturunkan oleh banyak leluhur atau banyak sumber gen. Penduduk Bali telah mengalami percampuran genetik dari berbagai populasi pendatang sejak neolitik atau awal masehi."