112 research outputs found

    Effect of Temperature and Relative Humidity on Market Egg Quality.

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    6 p

    Electrified Fences for Bull Pens.

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    4 p

    Make Sure that Your Portable Equipment is Properly Grounded!

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    4 p

    Identifying key research objectives to make European forests greener for bats

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    Bats are a biodiverse mammal order providing key ecosystem services such as pest suppression, pollination and seed dispersal. Bats are also very sensitive to human actions, and significant declines in many bat populations have been recorded consequently. Many bat species find crucial roosting and foraging opportunities in European forests. Such forests have historically been exploited by humans and are still influenced by harvesting. One of the consequences of this pressure is the loss of key habitat resources, often making forests inhospitable to bats. Despite the legal protection granted to bats across Europe, the impacts of forestry on bats are still often neglected. Because forest exploitation influences forest structure at several spatial scales, economically viable forestry could become more sustainable and even favour bats. We highlight that a positive future for bat conservation that simultaneously benefits forestry is foreseeable, although more applied research is needed to develop sound management. Key future research topics include the detection of factors influencing the carrying capacity of forests, and determining the impacts of forest management and the economic importance of bats in forests. Predictive tools to inform forest managers are much needed, together with greater synergies between forest managers and bat conservationists

    The role of neutral Rh(PONOP)H, free NMe2H, boronium and ammonium salts in the dehydrocoupling of dimethylamine-borane using the cationic pincer [Rh(PONOP)(η2-H2)]+ catalyst

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    The σ-amine-borane pincer complex [Rh(PONOP)(η1-H3B·NMe3)][BArF4] [2, PONOP = κ3-NC5H3-2,6-(OPtBu2)2] is prepared by addition of H3B·NMe3 to the dihydrogen precursor [Rh(PONOP)(η2-H2)][BArF4], 1. In a similar way the related H3B·NMe2H complex [Rh(PONOP)(η1-H3B·NMe2H)][BArF4], 3, can be made in situ, but this undergoes dehydrocoupling to reform 1 and give the aminoborane dimer [H2BNMe2]2. NMR studies on this system reveal an intermediate neutral hydride forms, Rh(PONOP)H, 4, that has been prepared independently. 1 is a competent catalyst (2 mol%, ∼30 min) for the dehydrocoupling of H3B·Me2H. Kinetic, mechanistic and computational studies point to the role of NMe2H in both forming the neutral hydride, via deprotonation of a σ-amine-borane complex and formation of aminoborane, and closing the catalytic cycle by reprotonation of the hydride by the thus-formed dimethyl ammonium [NMe2H2]+. Competitive processes involving the generation of boronium [H2B(NMe2H)2]+ are also discussed, but shown to be higher in energy. Off-cycle adducts between [NMe2H2]+ or [H2B(NMe2H)2]+ and amine-boranes are also discussed that act to modify the kinetics of dehydrocoupling

    Świadomość ekologiczna społeczeństwa a rozwój zrównoważony

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    The ecological awareness of the society is an indispensable social factor contributing to sustainable development. This paper presents the typology of ecological awareness according to basic types of cognition and the state of ecological awareness of Polish society as diagnosed in the research study carried out by the Public Opinion Research Centre (CBOS) ordered by the Institute for sustainable development. Furthermore this paper explores how the ecological awareness of the society becomes an instrument of social support and along with the economic instruments contributes to the sustainable economic development based on knowledge and what is the role of environmental management system within the framework of Integrated Product Policy (IPP) in this process. Finally the paper discusses study findings illustrating the state of the ecological awareness of Polish entrepreneurs.Świadomość ekologiczną społeczeństwa należy uznać za niezbędny społeczny czynnik zrównoważonego rozwoju. Zaprezentowano typologię świadomości ekologicznej wg podstawowych typów poznania oraz stan świadomości ekologicznej polskiego społeczeństwa na podstawie wyników badań prowadzonych przez CBOS na zlecenie Instytutu na rzecz Ekorozwoju. Podjęto również próbę wskazania, jak .wiadomość ekologiczna społeczeństwa jest istotnym społecznym instrumentem wsparcia, obok instrumentów ekonomicznych, we wdrażaniu zrównoważonego rozwoju gospodarczego opartego na wiedzy, a jednym z elementów tego procesu jest system zarządzania środowiskowego w ramach zintegrowanej polityki produktowej. Przywołano także wyniki badań ilustrujące stan świadomości ekologicznej samych przedsiębiorców
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