243 research outputs found
Energising the TTIP: Political economy of the trade policy rationale. Paper No. 9 in the CEPS-CTR project âTTIP in the Balanceââand CEPS Special Report No. 113/July 2015
Despite accounting for a significant share of global trade and the resulting interdependencies from it, energy governance remains largely fragmented and there is no global framework or agreement defining the rules of energy trade. This paper, after presenting the main global and regional energy market developments, discusses the opportunities to âenergise the TTIPâ, i.e. to include a chapter dedicated to trade and cooperation in the sphere of energy. The shale revolution in the US, the ever-rising interconnectedness of energy markets (recently proven by the disappearance of the âAsian gas premiumâ) and the EUâs quest to diversify its energy supplies generally sets favourable conditions to reinforce energy relations between the EU and the US. The question, as is often the case, is whether there is sufficient political will to tighten relations in a strategic sphere with connotations for national security and sovereignty
Plasma membrane: Negative attraction
The electrostatic charge at the inner surface of the plasma membrane is strongly negative in higher organisms. A new study shows that phosphatidylinositol-4-phosphate plays a critical role in establishing plasma membrane surface charge in Arabidopsis, which regulates the correct localization of signalling components
Europe's LNG Strategy in the Wider EU Gas Market. CEPS Policy Brief No. 333, October 2015
In its Communication on an Energy Union published in February 2015, the European Commission committed itself to âexplore the full potential of liquefied natural gas (LNG), including as a back-up in crisis situations when insufficient gas is coming into Europe through the existing pipeline systemâ and to address the potential of gas storage in Europe by developing a comprehensive LNG and storage strategy by the end of 2015 or early in 2016.
This is a comprehensible move in the current context. Geopolitical tensions between the EU and Russia explain the EUâs willingness to further diversify its supply sources of natural gas to reinforce its long-term energy security on the one hand, and to strengthen its ability to solve future crises on the other hand. Moreover, the current market dynamics could support diversification towards LNG. Increasing the flexibility of LNG trade, decreasing LNG prices and LNG charter rates and an apparent price convergence between the European and the Asia-Pacific LNG imports would all reinforce the economic viability of such a strategy.
This Policy Brief makes three main points:
âą For the LNG and gas storage strategy to work, it needs to be embedded in the realities of the natural gas market.
âą The key to a successful LNG strategy is to develop sufficient infrastructure.
âą The LNG strategy needs an innovation component
Modeling and Simulating a Novel Biohydrogen Production Technology as an Integrated Part of a Municipal Wastewater Treatment Plant
A series of mathematical models and simulations was developed and performed using BioWin software suit in order to determine the suitability of implementing a biohydrogen production technology in an existing wastewater treatment plant. The evaluation of the performance of these approach was based on biohydrogen yield and effluent quality. The simulations show high biohydrogen production rates, with picks during the summer months, while most of the effluent environmental parameters remain at the same or even lower levels compared with the currently used technology
Mechanical response of sodium silicate glass
We propose a new method using coarse-graining and molecular dynamics to calculate structural and mechanical properties for sodium silicate glasses at different scales. Using this method we were able to describe the mechanical behavior of the material, this way a new constitutive model was developed which could be used in continuum calculations
Salicylic acid targets protein phosphatase 2A to attenuate growth in plants
Plants, like other multicellular organisms, survive through a delicate balance between growth and defense against pathogens. Salicylic acid (SA) is a major defense signal in plants, and the perception mechanism as well as downstream signaling activating the immune response are known. Here, we identify a parallel SA signaling that mediates growth attenuation. SA directly binds to A subunits of protein phosphatase 2A (PP2A), inhibiting activity of this complex. Among PP2A targets, the PIN2 auxin transporter is hyperphosphorylated in response to SA, leading to changed activity of this important growth regulator. Accordingly, auxin transport and auxin-mediated root development, including growth, gravitropic response, and lateral root organogenesis, are inhibited. This study reveals how SA, besides activating immunity, concomitantly attenuates growth through crosstalk with the auxin distribution network. Further analysis of this dual role of SA and characterization of additional SA-regulated PP2A targets will provide further insights into mechanisms maintaining a balance between growth and defense
Preparation and characterization of lapatinib-loaded PVP nanofiber amorphous solid dispersion by electrospinning
Lapatinib-loaded polyvinylpyrrolidone-based nanofibrous solid dispersions were prepared by electrospinning in order to enhance the aqueous solubility and dissolution rate of the anticancer drug. The prepared nanofibers were characterized by smooth-surfaced, homogenous filaments with average diameters of 462±160 nm determined by scanning electron microscopy. The crystalline to amorphous transition of the active ingredient was confirmed by differential scanning calorimetry, while Raman spectroscopy showed that amorphous lapatinib was uniformly distributed in the fibrous structures. Gas chromatographic analyses revealed that residual solvents in the nanofiber mats were below the ICH Guideline Q3C recommended limits, namely ethanol 10.9±2.3 ppm (recommended limit 5000 ppm) and dimethyl formamide 780±56 ppm (recommended limit 880 ppm). Determination of drug content and in vitro dissolution studies were performed in order to observe the influence of electrospinning on the drug release characteristics of the product obtained. The lapatinib content in the nanofibers were measured to be 16.76±0.11 w/w%, whereas the dissolution study at pH 6.8 indicated a rapid disintegration of the nanofibrous mats, releasing ~70% of the drug loading under 5 minutes compared to the ~0.05% dissolution of the neat lapatinib ditosylate. The results confirm the applicability of electrospinning for the improvement of physicochemical characteristics of the poorly bioavailable anticancer agent
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