Towards the Evaluation of the Ecological Effectiveness of the Principles, Criteria and Indicators (PCI) of the Forest Stewardship Council (FSC): Case study in the Arkhangelsk Region in the Russian Federation

The Forest Stewardship Council (FSC) is a voluntary sustainability standard with global reach that has been developed to encourage responsible and sustainable forest management. Despite its broad appeal, there is little scientific assessment to substantiate the effectiveness of FSC in the boreal zone. In this study, an ecosystem-based and participatory approach was applied to a case study in the Arkhangelsk Region of the Russia Federation to assess the potential influence of the principles, criteria and indicators of the Russian FSC standard. An ECOSEFFECT theoretical plausibility analysis was conducted to evaluate the potential effectiveness of FSC in safeguarding the ecological integrity of the ecosystem. Besides spatial analysis and a field visitation, core elements of the methodological procedure were workshops with experts and stakeholders who directly contributed to knowledge mapping and analysis. The results of the study suggest FSC can potentially influence and improve forest management including monitoring and evaluation, foster the institutional capacity, and enhance knowledge on the impacts of forest management. Theoretically, FSC has a certain potential to reduce a range of anthropogenic threats to the ecosystem, such as large-scale deforestation and forest degradation, logging of High Conservation Value Forests, large size of clear-cuts, excessive annual allowable cuts, damage to trees during forest operations, and hydrological changes. However, human-induced fire is the only ecological stress that was assumed to be effectively tackled through a strong and positive influence of FSC. The results of the theoretical analysis with a semi-quantitative evaluation revealed the potential for FSC to generate much more effective outcomes for biodiversity by prudently targeting key ecological problems. The biggest problem is the large-scale clear-cutting practice, especially within IFL. These devastating practices are not promoted by, but are compliant with the current Russian FSC standard. This feeds doubts about the consistency of FSC practice and its credibility

Towards the Evaluation of the Ecological Effectiveness of the Principles, Criteria and Indicators (PCI) of the Forest Stewardship Council (FSC): Case study in the Arkhangelsk Region in the Russian Federation

The Forest Stewardship Council (FSC) is a voluntary sustainability standard with global reach that has been developed to encourage responsible and sustainable forest management. Despite its broad appeal, there is little scientific assessment to substantiate the effectiveness of FSC in the boreal zone. In this study, an ecosystem-based and participatory approach was applied to a case study in the Arkhangelsk Region of the Russia Federation to assess the potential influence of the principles, criteria and indicators of the Russian FSC standard. An ECOSEFFECT theoretical plausibility analysis was conducted to evaluate the potential effectiveness of FSC in safeguarding the ecological integrity of the ecosystem. Besides spatial analysis and a field visitation, core elements of the methodological procedure were workshops with experts and stakeholders who directly contributed to knowledge mapping and analysis. The results of the study suggest FSC can potentially influence and improve forest management including monitoring and evaluation, foster the institutional capacity, and enhance knowledge on the impacts of forest management. Theoretically, FSC has a certain potential to reduce a range of anthropogenic threats to the ecosystem, such as large-scale deforestation and forest degradation, logging of High Conservation Value Forests, large size of clear-cuts, excessive annual allowable cuts, damage to trees during forest operations, and hydrological changes. However, human-induced fire is the only ecological stress that was assumed to be effectively tackled through a strong and positive influence of FSC. The results of the theoretical analysis with a semi-quantitative evaluation revealed the potential for FSC to generate much more effective outcomes for biodiversity by prudently targeting key ecological problems. The biggest problem is the large-scale clear-cutting practice, especially within IFL. These devastating practices are not promoted by, but are compliant with the current Russian FSC standard. This feeds doubts about the consistency of FSC practice and its credibility

Manipulation of host hepatocytes by the malaria parasite for delivery into liver sinusoids

The merozoite stage of the malaria parasite that infects erythrocytes and causes the symptoms of the disease is initially formed inside host hepatocytes. However, the mechanism by which hepatic merozoites reach blood vessels (sinusoids) in the liver and escape the host immune system before invading erythrocytes remains unknown. Here, we show that parasites induce the death and the detachment of their host hepatocytes, followed by the budding of parasite-filled vesicles (merosomes) into the sinusoid lumen. Parasites simultaneously inhibit the exposure of phosphatidylserine on the outer leaflet of host plasma membranes, which act as eat me'' signals to phagocytes. Thus, the hepatocyte-derived merosomes appear to ensure both the migration of parasites into the bloodstream and their protection from host immunity.Bernhard Nocht Inst Trop Med, D-20359 Hamburg, GermanyInst Pasteur, Dept Parasitol, F-75724 Paris 15, FranceUniversidade Federal de São Paulo, Dept Biochem, BR-04044020 São Paulo, BrazilUniv Hamburg, Hosp Eppendorf, Dept Hepatobiliary Surg, D-20246 Hamburg, GermanyUniversidade Federal de São Paulo, Dept Biochem, BR-04044020 São Paulo, BrazilWeb of Scienc

Organische Chemie 2008

Braese S, Wuerthner F, Tschierske C, et al. Organische Chemie 2008. Nachrichten aus der Chemie. 2009;57(3):252-277

Diffractive Dijet Production with a Leading Proton in ep Collisions at HERA

The cross section of the diffractive process e^+p -> e^+Xp is measured at a centre-of-mass energy of 318 GeV, where the system X contains at least two jets and the leading final state proton p is detected in the H1 Very Forward Proton Spectrometer. The measurement is performed in photoproduction with photon virtualities Q^2 <2 GeV^2 and in deep-inelastic scattering with 4 GeV^2<Q^2<80 GeV^2. The results are compared to next-to-leading order QCD calculations based on diffractive parton distribution functions as extracted from measurements of inclusive cross sections in diffractive deep-inelastic scattering

Measurement of Jet Production Cross Sections in Deep-inelastic ep Scattering at HERA

A precision measurement of jet cross sections in neutral current deep-inelastic scattering for photon virtualities $5.5<Q^2<80\,{\rm GeV}^2$ and inelasticities $0.2<y<0.6$ is presented, using data taken with the H1 detector at HERA, corresponding to an integrated luminosity of $290\,{\rm pb}^{-1}$. Double-differential inclusive jet, dijet and trijet cross sections are measured simultaneously and are presented as a function of jet transverse momentum observables and as a function of $Q^2$. Jet cross sections normalised to the inclusive neutral current DIS cross section in the respective $Q^2$-interval are also determined. Previous results of inclusive jet cross sections in the range $150<Q^2<15\,000\,{\rm GeV}^2$ are extended to low transverse jet momenta $5<P_{T}^{\rm jet}<7\,{\rm GeV}$. The data are compared to predictions from perturbative QCD in next-to-leading order in the strong coupling, in approximate next-to-next-to-leading order and in full next-to-next-to-leading order. Using also the recently published H1 jet data at high values of $Q^2$, the strong coupling constant $\alpha_s(M_Z)$ is determined in next-to-leading order.A precision measurement of jet cross sections in neutral current deep-inelastic scattering for photon virtualities $5.5<Q^2<80\,{\rm GeV}^2$ and inelasticities $0.2<y<0.6$ is presented, using data taken with the H1 detector at HERA, corresponding to an integrated luminosity of $290\,{\rm pb}^{-1}$. Double-differential inclusive jet, dijet and trijet cross sections are measured simultaneously and are presented as a function of jet transverse momentum observables and as a function of $Q^2$. Jet cross sections normalised to the inclusive neutral current DIS cross section in the respective $Q^2$-interval are also determined. Previous results of inclusive jet cross sections in the range $150<Q^2<15\,000\,{\rm GeV}^2$ are extended to low transverse jet momenta $5<P_{T}^{\rm jet}<7\,{\rm GeV}$. The data are compared to predictions from perturbative QCD in next-to-leading order in the strong coupling, in approximate next-to-next-to-leading order and in full next-to-next-to-leading order. Using also the recently published H1 jet data at high values of $Q^2$, the strong coupling constant $\alpha_s(M_Z)$ is determined in next-to-leading order.A precision measurement of jet cross sections in neutral current deep-inelastic scattering for photon virtualities $5.5<Q^2 <80\,\mathrm {GeV}^2$ and inelasticities $0.2<y<0.6$ is presented, using data taken with the H1 detector at HERA, corresponding to an integrated luminosity of $290\,\mathrm {pb}^{-1}$ . Double-differential inclusive jet, dijet and trijet cross sections are measured simultaneously and are presented as a function of jet transverse momentum observables and as a function of $Q^2$ . Jet cross sections normalised to the inclusive neutral current DIS cross section in the respective $Q^2$ -interval are also determined. Previous results of inclusive jet cross sections in the range $150<Q^2 <15{,}000\,\mathrm {GeV}^2$ are extended to low transverse jet momenta $5<P_\mathrm{T}^\mathrm{jet} <7\,\mathrm {GeV}$ . The data are compared to predictions from perturbative QCD in next-to-leading order in the strong coupling, in approximate next-to-next-to-leading order and in full next-to-next-to-leading order. Using also the recently published H1 jet data at high values of $Q^2$ , the strong coupling constant $\alpha _s(M_Z)$ is determined in next-to-leading order

Erratum to: Measurement of jet production cross sections in deep-inelastic ep scattering at HERA

The measurement of the jet cross sections by the H1 collaboration had been compared to various predictions including the next-to-next-to-leading order (NNLO) QCD calculations which are corrected in this erratum for an implementation error in one of the components of the NNLO calculations. The jet data and the other predictions remain unchanged. Eight figures, one table and conclusions are adapted accordingly, exhibiting even better agreement between the corrected NNLO predictions and the jet data

Colombeau generalized functions on manifolds

Eduard NigschZsfassung in dt. SpracheWien, Techn. Univ. u. Univ., Dipl.-Arb., 2006OeBB(VLID)161012

Exclusive ρ0\rho^0 Meson Photoproduction with a Leading Neutron at HERA

A first measurement is presented of exclusive photoproduction of $\rho^0$ mesons associated with leading neutrons at HERA. The data were taken with the H1 detector in the years $2006$ and $2007$ at a centre-of-mass energy of $\sqrt{s}=319$ GeV and correspond to an integrated luminosity of $1.16$ pb$^{-1}$. The $\rho^0$ mesons with transverse momenta $p_T0.35$, are detected in the Forward Neutron Calorimeter. The phase space of the measurement is defined by the photon virtuality $Q^2 < 2$ GeV$^2$, the total energy of the photon-proton system $20 < W_{\gamma p} < 100$ GeV and the polar angle of the leading neutron $\theta_n < 0.75$ mrad. The cross section of the reaction $\gamma p \to \rho^0 n \pi^+$ is measured as a function of several variables. The data are interpreted in terms of a double peripheral process, involving pion exchange at the proton vertex followed by elastic photoproduction of a $\rho^0$ meson on the virtual pion. In the framework of one-pion-exchange dominance the elastic cross section of photon-pion scattering, $\sigma^{\rm el}(\gamma\pi^+ \to \rho^0\pi^+)$, is extracted. The value of this cross section indicates significant absorptive corrections for the exclusive reaction $\gamma p\to\rho^0 n \pi^+$

Measurement of Dijet Production in Diffractive Deep-Inelastic ep Scattering at HERA

A measurement is presented of single- and double-differential dijet cross sections in diffractive deep-inelastic $ep$ scattering at HERA using data collected by the H1 experiment corresponding to an integrated luminosity of 290 pb^{-1}. The investigated phase space is spanned by the photon virtuality in the range of 4<Q^{2}<100 GeV^{2} and by the fractional proton longitudinal momentum loss x_pom<0.03. The resulting cross sections are compared with next-to-leading order QCD predictions based on diffractive parton distribution functions and the value of the strong coupling constant is extracted