Heavy Metal Music and Adolescent Suicidal Risk

This study probes the differentiating characteristics (family relationships, social–psychological attitudes, drug use, and suicidal risk) of youth who prefer heavy metal (HM) music, worship music, and use music for vicarious release. Data analysis was based on a sample of 275 secondary school students between the ages of 14 and 18. Logistic regressions revealed that HM music preference and worshipping is not significantly related to suicidal risk when controlling for other risk factors. These findings were found for both boys and girls. Surprisingly, the use of music for vicarious release was inversely related to suicidal risk for girls. These findings are discussed within the framework of Arnett's alienation theory (Arnett, J. (1991). J. Youth Adolesc. 20(6): 573–592) and Roe's uses-gratification theory (Roe, K. (1995). J. Youth Adolesc. 24(5): 617–631) regarding adolescent socialization and media purposes.     

The changing face of culture: gauging the impact of a free media

This paper empirically assesses the relationship between culture and a free press. The results reveal that a privatized or ‘free media’ strongly influences informal institutions of a country or what is commonly known as culture. By providing unbiased and a wide variety information to the masses, the media sector not only reduces information asymmetry and transaction costs but also helps generate higher levels of social capital. It acts as an effective liaison between the masses and the government and also among various religious, ethnic and other fractionalized groups in a society. We use the proxy of informal institutions identified by Tabellini (Journal of the European Economic Association 8(4):677–716, 2010) which consists of four traits. The results are robust to alternate specifications and inclusion of controls.     

Aspects of local government and politics in china: 1955–58

This study, based on work in six villages, seeks insights into the likely effect of the introduction of prospective land‐, water‐, and crop‐management technologies, being researched at the International Crops Research Institute for the Semi‐Arid Tropics, on the existing village labour‐use patterns in one major relevant region: peninsular India. Explicit attention is given to the similarities and differences between small and large farms and their relevance to the adoption of the prospective new technologies.

Regional variation in labour utilisation reveals a tremendous employment‐creating potential in the existing tank and well irrigation systems in the Alfisols of peninsular India. The prospective technologies should increase employment, compared with existing technologies, by at least 100 per cent in the Alfisols and by over 300per cent in the deep Vertisols— but with some increase in the seasonal variability of labour demand. Given the existing availability of labour, there will be, with the improved watershed technologies, major farm labour bottlenecks. These should eventually generate increased wage rates and employment potentials. However, even temporary adverse effects on the timelessness of operations could be critical to the success of a double‐cropping and/or intercropping technology aiming at greatly increased yields. This would create demands for selective mechanisation, for example, of threshing.     

The Russian case for military intervention in Georgia: international law,norms and political calculation

Abstract

The Russian military intervention in Georgia in August 2008 has raised significant questions about Russian thinking and practice on the legitimate use of military force abroad, especially in relation to neighbour states. The arguments advanced by Russia to justify this campaign show how Russian interpretations of customary international law as well as norms related to the use of force have served as an instrument of state policy, rather than being rooted in any broader international consensus. The Russian discourse in this context about sovereignty, self-determination and the legitimacy of recognising South Ossetia and Abkhazia as states appears similarly to be strongly influenced by political self-interest and Russian views about its entitlement within the Commonwealth of Independent States (CIS) region. Among Russian claims, Moscow's commitment to support its ‘citizens’ abroad has been particularly controversial. This article examines these issues and also the possibility that, through its justifications for waging war against Georgia, Russia is more broadly contesting the interpretation of certain international norms, that it regards as essentially constructed by Western states. Some potential implications of these legal and normative arguments for future Russian policy in the CIS region, including Ukraine, are also examined.     

The role of venture capital firms in Silicon Valley's complex innovation network

Abstract

We still poorly understand why Silicon Valley has originated so many breakthrough innovations and large companies. The durability of Silicon Valley's innovative competence over the last seventy years also needs more explanation. The failure of several policy-makers around the world to reproduce the Silicon Valley cluster reveals the misunderstanding of the innovative dynamic in Silicon Valley. This study uses complex network theory – CNT (Barabási, Newman & Watts, 2006; Jen, 2006; Thompson, 2004a) to analyse the complex innovative capability of Silicon Valley and to understand the heterogeneity of agents and the multiplexity of ties that support creation and development of high-tech start-ups. As proposed by Barabási (2002, p. 200), we view the economy as a complex network, whose nodes are companies and whose links represent the various economic and financial ties connecting them. Innovation and entrepreneurship are understood as resulting from the interactions of numerous economic agents.

In a systemic perspective, by definition, the presence of a specific agent in a network induces specific interactions with other agents that could not take place if this agent were not there. Thus, the diversity of agents influences the dynamics of the system. The presence of venture capital (hereafter VC) firms in an innovative cluster opens potential specific interactions with other agents in the network (universities, large companies, laboratories) that determine a particular dynamic of innovation. In this perspective, what is distinctive about Silicon Valley is its complete and robust complex system of innovation supported by social networks of interdependent economic agents in which the VC firms have a specific function. Our perspective examines five different contributions of VC firms to Silicon Valley: financing, selection, collective learning, embedding and signalling. These five functions are different ways for the VC firms to interact with the other members of the complex network of innovation and to support the robustness of the system.     

Medieval modernity: On citizenship and urbanism in a global era

This paper examines forms of citizenship associated with contemporary urbanism. Focusing on three paradigmatic spaces: the gated enclave, the regulated squatter settlement and the camp, the authors argue that the landscape of urban citizenship is increasingly fragmented and divided. These geographies are constituted through multiple and competing sovereignties which, when territorially exercised, produce fiefdoms of regulation or zones of ‘no-law’. In order to understand these practices, the authors employ the conceptual framework of the ‘medieval city’. This use of history as theory sheds light on particular types of urban citizenship, such as the ‘free town’ or the ‘ethnic quarter’, that were present at different moments of medievalism and that are congruent with current processes. The ‘medieval’ is invoked not as an historical period, but rather as a transhistorical analytical category that interrogates the modern at this moment of liberal empire.     

How Serious is the Global Warming Threat?

Despite the media’s and politicians’ insistence that the science of global warming is “settled”, there are good reasons to distrust climate model projections of future global warming. While the supposed scientific consensus is that mankind is very likely to blame for recent global warmth, this is mostly a statement of faith made from a position of relative ignorance about natural variability in the climate system. Since we do not understand what causes decadal- to century-scale natural climate variability, it has simply been assumed to either not exist, or to be relatively small. But even if predictions of catastrophic warming are accurate, the worldwide demand for energy is so large that there is little mankind can do without radically new energy technologies. Since it is only the wealthy countries of the world that can afford the R&D efforts to develop those technologies, punishing the use of fossil fuels, and the resulting negative impact on economies, might well delay the development of cost effective carbon-free energy sources that so many people are now calling for.

An original cause of drowning in an industrial environment

We describe an original case of drowning in a wax tank in an industrial setting. The causes of death were multiple, with the association of drowning, mechanical asphyxia, and extensive superficial burns. To our knowledge, it is the first report of drowning in wax, and only 7 previous related observations of drowning in industrial environments were reported in the international literature. These accidents are more often fatal, with multiple associated causes of death due to the incriminated media. Although exceptional, these serious accidents must be prevented in potentially risky industries.     

Simultaneous analysis of six amphetamines and analogues in hair, blood and urine by LC-ESI-MS/MS. Application to the determination of MDMA after low ecstasy intake

A rapid and sensitive method using LC-MS/MS triple stage quadrupole for the determination of traces of amphetamine (AP), methamphetamine (MA), 3,4-methylenedioxyamphetamine (MDA), 3,4-methylenedioxymethamphetamine (MDMA, "ecstasy"), 3,4-methylenedioxyethamphetamine (MDEA), and N-methyl-1-(3,4-methylenedioxyphenyl)-2-butanamine (MBDB) in hair, blood and urine has been developed and validated. Chromatography was carried out on an Uptisphere ODB C(18) 5 microm, 2.1 mm x 150 mm column (Interchim, France) with a gradient of acetonitrile and formate 2 mM pH 3.0 buffer. Urine and blood were extracted with Toxitube A (Varian, France). Segmented scalp hair was treated by incubation 15 min at 80 degrees C in NaOH 1M before liquid-liquid extraction with hexane/ethyl acetate (2/1, v/v). The limits of quantification (LOQ) in blood and urine were at 0.1 ng/mL for all analytes. In hair, LOQ was <5 pg/mg for MA, MDMA, MDEA and MBDB, at 14.7 pg/mg for AP and 15.7 pg/mg for MDA. Calibration curves were linear in the range 0.1-50 ng/mL in blood and urine; in the range 5-500 pg/mg for MA, MDMA, MDEA and MBDB, and 20-500 pg/mg for AP and MDA. Inter-day precisions were <13% for all analytes in all matrices. Accuracy was <20% in blood and urine at 1 and 50 ng/mL and <10% in hair at 20 and 250 pg/mg. This method was applied to the determination of MDMA in a forensic case of single administration of ecstasy to a 16-year-old female without her knowledge during a party. She suffered from hyperactivity, sweating and agitation. A first sample of urine was collected a few hours after (T+12h) and tested positive to amphetamines by immunoassay by a clinical laboratory. Blood and urine were sampled for forensic purposes at day 8 (D+8) and scalp hair at day 60 (D+60). No MDMA was detected in blood, but urine and hair were tested positive, respectively at 0.42 ng/mL and at 22 pg/mg in hair only in the segment corresponding to the period of the offence, while no MDA was detectable. This method allows the detection of MDMA up to 8 days in urine after single intake.