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"The winner of UCL's annual HEP thesis prize, this work describes an analysis of the data from the second flight of the Antarctica Impulsive Transient Antenna (ANITA). ANITA is a balloon-borne experiment that searches for radio signals originating from ultra-high energy neutrinos and cosmic rays interacting with the Antarctic ice or air. The search for ultrahigh energy neutrinos of astrophysical origin is one of the outstanding experimental challenges of the 21st century. The ANITA experiment was designed to be the most sensitive instrument to ultra-high energy neutrinos that originate from the interactions of cosmic rays with the cosmic microwave background. The methodology and results of the neutrino and cosmic ray searches are presented in the thesis."

"Penyebab penurunan intensitas sinar kosmik dapat dianalisis dari polapenurunan intensitasnya. Dengan menggunakan data intensitas sinar kosmik dariCalgary, data awan magnet dari Magnetic Field Investigation (MFI), dan data SuddenStorm Commencement (SSC) dari National Geophysical Data Center, diperoleh bahwapenurunan dapat disebabkan oleh interplanetary shock, awan magnet, gabungan shockdan awan magnet, serta penurunan yang bukan karena shock atau awan magnet.Analisis dilakukan dengan membandingkan waktu mulainya penurunan intensitassinar kosmik dengan waktu tibanya awan magnet dan waktu terjadinya SSC. "

"Jaringan cosmic string, dan terkait dengannya, interaksi cosmic string dapat berperan di dalam sejarah alam semesta kita. Menanggapi itu, berbagai macam simulasi interaksi string-string sudah dihasilkan. Sebagian besar simulasi interaksi string yang dihasilkan sejauh ini berdasarkan interaksi string-string kanonik — simulasi yang melibatkan string non-kanonik lebih jarang dihasilkan. Sejumlah tumbukan string n=1 pada 90° dengan v/c = 0.1, 0.5, 0.75, 0.85, dan 0.9; serta tumbukan string n=1 pada 45° dan 135° dengan v/c = 0.75 telah dilakukan untuk satu kasus menggunakan model kanonik Maxwell-Higgs standar dengan V (φ) = (|φ|^2 − 1)^2 dan untuk kasus lain menggunakan model non-kanonik Maxwell-Higgs tergeneralisasi dengan w(|φ|) = 2(|φ|^2 + 1) dan V (φ) = |φ|^2 (|φ|^2 − 1)^2 serupa dengan yang sudah dilakukan untuk string kanonik oleh Shellard dan Matzner. Interkomutasi tetap terjadi untuk semua kasus yang diuji. Perbedaan kecil antara bagaimana string non-kanonik dan string kanonik berinteraksi juga telah terobservasi.

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String networks, and by extension string interactions might play a role in the history of our universe. Responding to that, numerous string interaction simulations have been made. The bulk of string interaction simulations made so far are based on canonical string-string interactions — simulations involving non-canonical strings are much rarer. A limited number of n=1 string collisions at 90° with v/c = 0.1, 0.5, 0.75, 0.85, and 0.9; and n=1 string collisions at 45° and 135° with v/c = 0.75 have been done for one case using the canonical standard Maxwell-Higgs model with V(φ)=(|φ|^2 − 1)^2 and for another using a non-canonical generalized Maxwell Higgs model with w(|φ|) = 2(|φ|^2 + 1) and V (φ) = |φ|^2 (|φ|^2−1)^2 in the vein of those done for canonical string by Shellard and Matzner. Intercommutation still occurs for all tested cases. Slight differences between how non-canonical strings and canonical string interact have also been observed."

"Telah diperoleh peningkatan akurasi prediksi curah hujan bulanan di wilayah Jakarta yang ditandai dengan peningkatan nilai koefisien korelasi data Tropical Rainfall Measuring Mission (TRMM) hasil simulasi jaringan syaraf tiruan. Dengan melibatkan faktor sinar kosmik sebagai masukan jaringan, diperoleh peningkatan akurasi sampai dengan 7,2% yang dicapai saat prediksi lima bulan ke depan. Untuk prediksi tiga dan empat bulan ke depan peningkatan akurasi yang diperoleh sebesar 4,8%. Hasil ini melengkapi bukti adanya kontribusi sinar kosmik dalam mempengaruhi curah hujan di wilayah Jakarta."

"Covers in a comprehensive fashion all aspects of cosmic hazards and possible strategies for contending with these threats through a comprehensive planetary defense strategy. This handbook brings together in a single reference work a rich blend of information about the various types of cosmic threats that are posed to human civilization by asteroids, comets, bolides, meteors, solar flares and coronal mass ejections, cosmic radiation and other types of threats that are only recently beginning to be understood and studied, such as investigation of the “cracks” in the protective shield provided by the Van Allen belts and the geomagnetosphere, of matter-antimatter collisions, orbital debris and radiological or biological contamination. Some areas that are addressed involve areas about which there is a good deal of information that has been collected for many decades by multiple space missions run by many different space agencies, observatories and scientific researchers. Other areas involving research and studies that have only recently gotten underway are discussed by some of the world’s foremost experts in each of these areas, who provide up-to-date and scientifically verifiable information. Although much of the work in these various areas have been conducted by space agencies, an expanding range of work is also being carried out by observatories, by universities and other research centers, and even by private foundations and professional organizations. The purpose of this work is thus several-fold: to include the latest information and most systematic research from around the world in a single reference work; to note where there are significant gaps in knowledge where new research, spacecraft, observatories, or other initiatives are needed to fill in critical missing information; and to give the best possible information about preventative actions that might be taken against cosmic threats and identify various alternative strategies that are now under way or planned to cope with these various threats."

"In this book how cosmogenic radionuclides can be used to trace and to reconstruct the history of a large variety of processes. They discuss the way in which cosmogenic radionuclides can assist in the quantification of complex processes in the present-day environment. "