Pengaruh Faktor Keuangan dan Non Keuangan terhadap Peringkat Obligasi di Bursa Efek Indonesia

Penelitian ini bertujuan untuk mengetahui pengaruh Current Ratio(CR), Return On Asset(ROA),Debt to Equity Ratio (DER) dan Maturity terhadap peringkat obligasi di Bursa Efek Indonesia. Data yang digunakan adalah data obligasi Perusahaan manufaktur yang terdaftar diBursa Efek Indonesia (BEI) serta dinilai oleh agen pemeringkat PEFINDO pada tahun 2007-2011.Variable yang digunakan adalah Current Ratio(CR), Return On Asset (ROA),Debt to Equity Ratio (DER) dan Maturity. Dengan menggunakan analisis aplikasi SPSS 21, penelitian ini mencoba untuk menguji rasio keuangan yang dapat membentuk model prediksi peringkat obligasi yang dapat menilai secara tepat. Hasil penelitian adalah (1) terdapat pengaruh yang signifikan pada Current Ratio dan Return on Asset,(2 )tidak terdapat pengaruh yang signifikan pada Debt to Equity Ratio dan Maturity. Katakunci:Current Ratio(CR),Return On Asset(ROA),Debt to Equity Ratio (DER), Maturity, dan Peringkat Obligas

The CAESAR project for the ASI space weather infrastructure

This paper presents the project Comprehensive spAce wEather Studies for the ASPIS prototype Realization (CAESAR), which aims to tackle the relevant aspects of Space Weather (SWE) science and develop a prototype of the scientific data centre for Space Weather of the Italian Space Agency (ASI) called ASPIS (ASI SPace Weather InfraStructure). To this end, CAESAR involves the majority of the SWE Italian community, bringing together 10 Italian institutions as partners, and a total of 92 researchers. The CAESAR approach encompasses the whole chain of phenomena from the Sun to Earth up to planetary environments in a multidisciplinary, comprehensive, and unprecedented way. Detailed and integrated studies are being performed on a number of well-observed “target SWE events”, which exhibit noticeable SWE characteristics from several SWE perspectives. CAESAR investigations synergistically exploit a great variety of different products (datasets, codes, models), both long-standing and novel, that will be made available in the ASPIS prototype: this will consist of a relational database (DB), an interface, and a wiki-like documentation structure. The DB will be accessed through both a Web graphical interface and the ASPIS.py module, i.e., a library of functions in Python, which will be available for download and installation. The ASPIS prototype will unify multiple SWE resources through a flexible and adaptable architecture, and will integrate currently available international SWE assets to foster scientific studies and advance forecasting capabilities

Real time monitoring of the radiation environment on the ISS with AMS-02

The International Space Station (ISS) is the most frequented place by human activity in space. The atmosphere is thin and the geomagnetic field offers a partial protection from radiation. Since the energetic spectrum of cosmic rays follows a decreasing power law, even though the highest energy portion is the most dangerous, it is scarcely populated: one of the most dangerous sources of radiation damage is represented by hadrons in the low end of the energetic spectrum, mainly constituted by Solar Energetic Particles (SEPs). The Alpha Magnetic Spectrometer (AMS-02) is an experiment operating on the ISS since 2011, performing precision measurements of cosmic ray composition and flux. We report on a study to verify if the low latency trigger information of AMS-02 could be used to perform a nowcast and monitoring service of the radiation environment and solar activity outside the ISS. A data-driven confirmation of the capability for real-time identification of SEP events outside of the ISS has been achieved, using an algorithm capable of determining abrupt excesses in the AMS-02 trigger rate with respect to that expected in quiet conditions, simulating real time access to low-latency data directly from AMS-02

Challenges of water and sanitation service co-production in the global South

Co-production of water and sanitation services, especially in the global South, implies that recipients of a service play a fundamental role in managing water resources. In the context of citizen–government synergies, service recipients are more than consumers, and (co)-production alters their involvement in the service production process, with respect to their relationships with both the natural resources and the delivery process. Our hypothesis is that a meaningful understanding of co-production for water and sanitation services is only possible through an interdisciplinary approach that takes into account natural and social dimensions. The objective is to develop a possible new conceptualization of service co-production that can foster a renewed citizenship while taking into account the risks of urban fragmentation