Firm-local community relationships in polluting industrial agglomerations: How firms' commitment determines residents' perceptions

This research contributes to the literature on the management of firm–local community relationships in polluting industrial agglomerations. Taking as reference a previous quantitative study on residents' perceptions of economic benefits and risk in the vicinity of two Spanish petrochemical complexes (Castellón and Tarragona), the aim of this paper is to analyse how companies in the two areas have built and manage, individually and collectively, their relations with the local community, while assessing the extent to which a more committed management has resulted in a more favourable perception by the public. For this purpose, we conducted in-depth interviews with managers of the main companies on the two sites. The results show different patterns of behaviour by firms in the two industrial agglomerations. Companies located in the area of Tarragona, where citizens' perceptions were more favourable, have historically been more committed to building stronger socio-economic links with the local community and encouraging a sense of community, and to making greater efforts to engage local residents through a process of dialogue. Moreover, the existence of a collective strategy in Tarragona, coordinated through a local industry association, has also played an important role in facilitating the industry's relationship with the local community. The findings of the study suggest the need to consider the industrial agglomeration and the firms' collective actions in research on relationships with the local community alongside actions by individual companies

Pemikiran Tan Malaka Tentang Islam dalam Buku Madilog

Sebagai latar belakang pembahasan ini adalah permasalahan yang terus melanda ilmu-ilmu sosial pada zaman perjuangan kemerdekaan Indonesia yang mungkin hingga saat ini adalah ketidakmampuan menjelaskan apa dan bagaimana seharusnya kerangka berfikir yang ideal pada tiap individu masyarakat. Hingga Madilog serta Pan Islamisme dianggap sebuah solusi untuk permasalahan tersebut. Tan Malaka seorang intlektual bangsa Indonesia (tokoh komunis) telah merumuskan konsep Madilog yang menurutnya ideal dalam kehidupan ini dalam karya-karyanya. Oleh karena itu penelitian ini bertujuan untuk mengetahui PEMIKIRAN TAN MALAKA TENTANG ISLAM DALAM BUKU MADILOG, pemahaman yang sampaikan oleh Tan Malaka dalam memandang Islam serta Pan Islamisme, dan juga keunggulan berikut kelemahan gagasan Tan Malaka. Penelitian ini termasuk jenis penelitian bibliografis dan kualitatif, karena itu sepenuhnya bersifat library research (penelitian kepustakaan) dengan menggunakan metode pendekatan sosiologi dan historis filosofis. Hasil penelitian ini adalah Tan Malaka tidak pernah mengkritik Karl Marx dan Engels, dan menegaskan kembali pendiriannya tentang agama dan keyakinan, yang menurutnya hanyalah ekspressi psikologis, sekaligus tanda keterasingan manusia. Meski tidak menggunakan bahasa yang sama dengan Marx, tetapi secara umum pandangannya sangat berkesesuaian. Tan Malaka meneguhkan cara berfikirnya dalam Madilog, yaitu Materialisme, Dialektika dan Logika. Dan apa yang dikatakan orang dengan „agama‟ hanya diakibatkan factor sosiologis dan psikologis semata. Dan apa yang dikatakan orang dengan malaikat hanya halusinasi, sedang yang ghaib hanya kepercayaan yang tak pantas diselidiki dengan alur Madilog. Karena „Madilog‟ bagi Tan Malaka, hanya berlaku pada materi nyata (benda dan masyarakat) tidak untuk mengkaji agama, karena keyakinan agama sama sekali tak dapat dibuktikan kebenarannya. Sesungguhnya Islam memerintahkan umatnya untuk memperhatikan kemaslahatan dasar yang suci atas individu dan yang berhubungan dengan Tuhan serta lingkungan. Serta hubungan kita dengan manusia – baik secara individu atau komunitas – adalah merupakan tonggak penting bagi lingkungan kita. Maka Islam adalah agama social yang tidak memisahkan keyakinan antara fisik dan metafisik. Sehingga Nampak pemahaman yang sesungguhnya berseberangan antara islam dengan penjelasan Tan Malaka dalam bukunya “Islam dalam tinjauan Madilog” yang menyatakan bahwa tiap-tiap manusia bebas menentukan kepercayaannya masing-masing dalam kalbu dan hati sanubarinya sendiri. Bahkan dalam hal ini Tan Malaka mengakui kebebasan berpikir orang lain sebagaimana ia menuntut pula orang lain menghargai kebebasannya untuk memilih paham yang diterapkan

Turbulence-induced vibrations prediction through use of an anisotropic pressure fluctuation model

In nuclear fuel rod bundles, turbulence-induced pressure fluctuations caused by an axial flow can create small but significant vibrations in the fuel rods, which in turn can cause structural effects such as material fatigue and fretting wear. Fluid-structure interaction simulations can be used to model these vibrations, but for affordable simulations based on the URANS approach, a model for the pressure fluctuations must be utilised. Driven by the goal to improve the current state-of-the-art pressure fluctuation model, AniPFM (Anisotropic Pressure Fluctuation Model) was developed. AniPFM can model velocity fluctuations based on anisotropic Reynolds stress tensors, with temporal correlation through the convection and decorrelation of turbulence. From these velocity fluctuations and the mean flow properties, the pressure fluctuations are calculated. The model was applied to several test cases and shows promising results in terms of reproducing qualitatively similar flow structures, as well as predicting the root-mean-squared pressure fluctuations. While further validation is being performed, the AniPFM has already demonstrated its potential for affordable simulations of turbulence-induced vibrations in industrial nuclear applications

Herschel*-ATLAS: correlations between dust and gas in local submm-selected galaxies

We present an analysis of CO molecular gas tracers in a sample of 500 μ m-selected Herschel -ATLAS galaxies at z < 0 . 05 ( cz < 14990 km s − 1 ). Using 22 − 500 μ m photom- etry from WISE , IRAS and Herschel , with H i data from the literature, we investigate correlations between warm and cold dust, and tracers of the gas in different phases. The correlation between global CO(3–2) line fluxes and FIR–submm fl uxes weakens with increasing IR wavelength ( λ & 60 μ m), as a result of colder dust being less strongly associated with dense gas. Conversely, CO(2–1) and H i line fluxes both ap- pear to be better correlated with longer wavelengths, suggesting that cold dust is more strongly associated with diffuse atomic and molecular gas phases, co nsistent with it being at least partially heated by radiation from old stellar populations . The increased scatter at long wavelengths implies that sub-millimetre fluxes are a po orer tracer of SFR. Fluxes at 22 and 60 μ m are also better correlated with diffuse gas tracers than dense CO(3–2), probably due to very-small-grain emission in the diffu se interstellar medium, which is not correlated with SFR. The FIR/CO luminosity ratio a nd the dust mass/CO luminosity ratio both decrease with increasing luminosit y, as a result of either correlations between mass and metallicity (changing CO/H 2 ) or between CO luminosity and excitation [changing CO(3–2)/CO(1–0)].Web of Scienc

Search for Tensor, Vector, and Scalar Polarizations in the Stochastic Gravitational-Wave Background

The detection of gravitational waves with Advanced LIGO and Advanced Virgo has enabled novel tests of general relativity, including direct study of the polarization of gravitational waves. While general relativity allows for only two tensor gravitational-wave polarizations, general metric theories can additionally predict two vector and two scalar polarizations. The polarization of gravitational waves is encoded in the spectral shape of the stochastic gravitational-wave background, formed by the superposition of cosmological and individually unresolved astrophysical sources. Using data recorded by Advanced LIGO during its first observing run, we search for a stochastic background of generically polarized gravitational waves. We find no evidence for a background of any polarization, and place the first direct bounds on the contributions of vector and scalar polarizations to the stochastic background. Under log-uniform priors for the energy in each polarization, we limit the energy densities of tensor, vector, and scalar modes at 95% credibility to Ω0T<5.58×10-8, Ω0V<6.35×10-8, and Ω0S<1.08×10-7 at a reference frequency f0=25 Hz. © 2018 American Physical Society

Search for gravitational waves from Scorpius X-1 in the second Advanced LIGO observing run with an improved hidden Markov model

We present results from a semicoherent search for continuous gravitational waves from the low-mass x-ray binary Scorpius X-1, using a hidden Markov model (HMM) to track spin wandering. This search improves on previous HMM-based searches of LIGO data by using an improved frequency domain matched filter, the J-statistic, and by analyzing data from Advanced LIGO's second observing run. In the frequency range searched, from 60 to 650 Hz, we find no evidence of gravitational radiation. At 194.6 Hz, the most sensitive search frequency, we report an upper limit on gravitational wave strain (at 95% confidence) of h095%=3.47×10-25 when marginalizing over source inclination angle. This is the most sensitive search for Scorpius X-1, to date, that is specifically designed to be robust in the presence of spin wandering. © 2019 American Physical Society

Erratum: "A Gravitational-wave Measurement of the Hubble Constant Following the Second Observing Run of Advanced LIGO and Virgo" (2021, ApJ, 909, 218)

[no abstract available

All-sky search for long-duration gravitational wave transients with initial LIGO

We present the results of a search for long-duration gravitational wave transients in two sets of data collected by the LIGO Hanford and LIGO Livingston detectors between November 5, 2005 and September 30, 2007, and July 7, 2009 and October 20, 2010, with a total observational time of 283.0 days and 132.9 days, respectively. The search targets gravitational wave transients of duration 10-500 s in a frequency band of 40-1000 Hz, with minimal assumptions about the signal waveform, polarization, source direction, or time of occurrence. All candidate triggers were consistent with the expected background; as a result we set 90% confidence upper limits on the rate of long-duration gravitational wave transients for different types of gravitational wave signals. For signals from black hole accretion disk instabilities, we set upper limits on the source rate density between 3.4×10-5 and 9.4×10-4 Mpc-3 yr-1 at 90% confidence. These are the first results from an all-sky search for unmodeled long-duration transient gravitational waves. © 2016 American Physical Society

All-sky search for long-duration gravitational wave transients with initial LIGO

We present the results of a search for long-duration gravitational wave transients in two sets of data collected by the LIGO Hanford and LIGO Livingston detectors between November 5, 2005 and September 30, 2007, and July 7, 2009 and October 20, 2010, with a total observational time of 283.0 days and 132.9 days, respectively. The search targets gravitational wave transients of duration 10-500 s in a frequency band of 40-1000 Hz, with minimal assumptions about the signal waveform, polarization, source direction, or time of occurrence. All candidate triggers were consistent with the expected background; as a result we set 90% confidence upper limits on the rate of long-duration gravitational wave transients for different types of gravitational wave signals. For signals from black hole accretion disk instabilities, we set upper limits on the source rate density between 3.4×10-5 and 9.4×10-4 Mpc-3 yr-1 at 90% confidence. These are the first results from an all-sky search for unmodeled long-duration transient gravitational waves. © 2016 American Physical Society