Determinació d'anions inorgànics epr cromatografia líquida de bescanvi iònic

Some Methods of analysis for the anions chloride, nitrite, nitrate and sulphate by means of the ion-exchange liquid chromatography technique are optimized. These methods use a single column and refractive index and ultraviolet detectors. A new method for the analysis of these inorganic anions is presented. We have applied it to river water analysis with a very high sensitivity (less than 1 ppb for nitrite and few ppb for nitrate and chloride)

Profil Demografi Dan Faktor-Faktor Yang Mendorong Mahasiswa Universitas Kristen Petra Surabaya Dalam Melakukan Kuliner Tengah Malam.

Berkembangnya kuliner tengah malam perlahan menjadi gaya hidup masyarakat Surabaya. Sehingga profil demografi dan faktor-faktor lain seseorang dalam melakukan kuliner tengah malam merupakan sesuatu yang patut diketahui oleh para pengusaha di bidang kuliner.Teknik analisa yang digunakan adalah kuantitatif eksploratif. Profil demografi terbanyak adalah mahasiswa Universitas Kristen Petra angkatan 2011, 20 tahun, wanita, kota asal Surabaya, tidak bekerja, uang saku per bulan Rp 750.000 - Rp 1.000.000, frekuensi konsumsi 1-5 kali per bulan, dan waktu keluar pk 22.00 - pk 00.00. Faktor-faktor lainnnya adalah faktor behavior, time & stress level, unplanned situation, dan need & actualization dimana faktor behavior merupakan faktor dominan yang mempengaruhi mahasiswa dalam melakukan kuliner tengah malam

The ANTARES Collaboration: Contributions to ICRC 2017 Part III: Searches for dark matter and exotics, neutrino oscillations and detector calibration

Papers on the searches for dark matter and exotics, neutrino oscillations and detector calibration, prepared for the 35th International Cosmic Ray Conference (ICRC 2017, Busan, South Korea) by the ANTARES Collaboratio

The ANTARES Collaboration: Contributions to ICRC 2017 Part II: The multi-messenger program

Papers on the ANTARES multi-messenger program, prepared for the 35th International Cosmic Ray Conference (ICRC 2017, Busan, South Korea) by the ANTARES Collaboratio

The Antares Collaboration : Contributions to the 34th International Cosmic Ray Conference (ICRC 2015, The Hague)

The ANTARES detector, completed in 2008, is the largest neutrino telescope in the Northern hemisphere. Located at a depth of 2.5 km in the Mediterranean Sea, 40 km off the Toulon shore, its main goal is the search for astrophysical high energy neutrinos. In this paper we collect the 21 contributions of the ANTARES collaboration to the 34th International Cosmic Ray Conference (ICRC 2015). The scientific output is very rich and the contributions included in these proceedings cover the main physics results, ranging from steady point sources, diffuse searches, multi-messenger analyses to exotic physics

Search for muon-neutrino emission from GeV and TeV gamma-ray flaring blazars using five years of data of the ANTARES telescope

The ANTARES telescope is well-suited for detecting astrophysical transient neutrino sources as it can observe a full hemisphere of the sky at all times with a high duty cycle. The background due to atmospheric particles can be drastically reduced, and the point-source sensitivity improved, by selecting a narrow time window around possible neutrino production periods. Blazars, being radio-loud active galactic nuclei with their jets pointing almost directly towards the observer, are particularly attractive potential neutrino point sources, since they are among the most likely sources of the very high-energy cosmic rays. Neutrinos and gamma rays may be produced in hadronic interactions with the surrounding medium. Moreover, blazars generally show high time variability in their light curves at different wavelengths and on various time scales. This paper presents a time-dependent analysis applied to a selection of flaring gamma-ray blazars observed by the FERMI/LAT experiment and by TeV Cherenkov telescopes using five years of ANTARES data taken from 2008 to 2012. The results are compatible with fluctuations of the background. Upper limits on the neutrino fluence have been produced and compared to the measured gamma-ray spectral energy distribution.Comment: 27 pages, 16 figure

The ANTARES Collaboration: Contributions to ICRC 2017 Part I: Neutrino astronomy (diffuse fluxes and point sources)

Papers on neutrino astronomy (diffuse fluxes and point sources, prepared for the 35th International Cosmic Ray Conference (ICRC 2017, Busan, South Korea) by the ANTARES Collaboratio