purpose: to design and manufacture iodine 125 radioactive plaques which can be used in patients with ocular melanoma, and to evaluate the efficacy of plaques in an animal model. methods: this prospective basic study was performed in collaboration with farabi hospital and tehran atomic energy agency. the iodide 125 plaques were designed and manufactured based on the collaborative ocular melanoma...

ABSTRACT Methanol is a ubiquitous complex organic molecule (COM) in the interstellar medium, thought to be precursor of larger COMs when it submitted different energetic processes, that can trigger chemical reactions solid and gas phases. Using laboratory experiments, we report characterization evolution photoproducts generated by UV irradiation methanol ice at doses temperatures (20 80 K). We ...

+ errPn(hn)− errPn(h) + errPn(h ∗)− errP (h∗). The second part is less than or equals to 0. We can disregard it when we aim at deriving an upper bound of the regret. Since the target function h∗ is independent of the sample pairs, the third part can be bounded easily by analyzing the binomial distribution with success probability errP (h∗) and n trials. To analyze the remaining first part, we b...

Abstract The origin of complex organic molecules (COMs) in young Class 0 protostars has been one the major questions astrochemistry and star formation. While COMs are thought to form on icy dust grains via gas-grain chemistry, observational constraints their formation pathways have limited gas-phase detection. Sensitive mid-infrared spectroscopy with JWST enables unprecedented investigation COM...

Interstellar chemistry in low metallicity environments is crucial to understand chemical processes the past metal-poor universe. Recent studies of interstellar molecules nearby low-metallicity galaxies have suggested that has a significant effect on star-forming cores. Here we report first detection hot molecular core extreme outer Galaxy, which an excellent laboratory study star formation and ...

Recent observations of the pre-stellar core L1544 and younger starless L1498 have revealed that complex organic molecules (COMs) are enhanced in gas phase toward their outer intermediate-density shells. Our goal is to determine level chemical complexity L1517B, which seems than L1498, compare it with other two previously studied cores see if there a evolution within cores. We carried out 3 mm h...