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Lau, T.F.S.,Ohba, N.,Arikawa, K.,Meyer-Rochow, V.B. Korean Society of Applied Entomology 2007 Journal of Asia-Pacific Entomology Vol.10 No.1
The eyes of male and female Rhagophthalmus ohbai are of very different sizes and possess approximately 3000 and 35 facets, respectively. In the male eye one can distinguish a smaller dorsal region with 500 facets and a larger ventral one with ca. 1800. Ultrastructural differences between them have been described earlier in this journal (Lau and Meyer-Rochow, 2006). Electrophysiological recordings from the two eye areas have now revealed that the ventral region is maximally sensitive to light of 600 nm wavelength, while the dorsal eye region responds maximally to light of 540-560 nm wavelengths. In the dorsal eye region sensitivity to UV-radiation at around 360 nm wavelength, being twice as high as that of the ventral eye region, amounted to ca. one quarter of peak wavelength sensitivity. The regional differences in spectral sensitivity seem to be a reflection of the different tasks of the two eye regions: looking downward to see the yellow light emitted by a female, sensitivity towards longer wavelengths would be advantageous, but looking upward into the twilight sky, sensitivity to shorter wavelength would be a more appropriate adaptation.
T.F.S. Lau,N. Ohba,K. Arikawa,V.B. Meyer-Rochow 한국응용곤충학회 2007 Journal of Asia-Pacific Entomology Vol.10 No.1
The eyes of male and female Rhagophthalmus ohbai are of very different sizes and possess approximately 3000 and 35 facets, respectively. In the male eye one can distinguish a smaller dorsal region with 500 facets and a larger ventral one with ca. 1800. Ultrastructural differences between them have been described earlier in this journal (Lau and Meyer- Rochow, 2006). Electrophysiological recordings from the two eye areas have now revealed that the ventral region is maximally sensitive to light of 600 nm wavelength, while the dorsal eye region responds maximally to light of 540-560 nm wavelengths. In the dorsal eye region sensitivity to UV-radiation at around 360 nm wavelength, being twice as high as that of the ventral eye region, amounted to ca. one quarter of peak wavelength sensitivity. The regional differences in spectral sensitivity seem to be a reflection of the different tasks of the two eye regions: looking downward to see the yellow light emitted by a female, sensitivity towards longer wavelengths would be advantageous, but looking upward into the twilight sky, sensitivity to shorter wavelength would be a more appropriate adaptation.
Managing Within a Creative Environment
Sarah A. Meyer 사단법인 한국브랜드디자인학회 2007 브랜드디자인학연구 Vol.5 No.1
Managing a complex system, such as a design group, is not a matter of facilitating a sequence of discrete steps. It involves the interaction of self-management, cooperative behavior, feedback, and flexibility in processes that orchestrate these elements to the benefit of organizational strategy and the development of specific projects. Sarah Meyer defines this approach and illustrates the significance of these issues with "in-the-trenches" commentary from design managers.
Meyer, Peter B.,Yi, Yang Soo 한국국제지역사회개발학회 1999 地域社會開發學術誌 Vol.9 No.2
오늘날 "지속 가능한 개발(Sustainable Development)" 이라는 화두는 지역과 국가의 경제활동에 있어서 중요한 의제의 하나로 대두되고 있다. 그러나 "지속가능(Sustainability)"의 개념에 대한 정의와 측정에 대해서는 많은 논쟁이 오래 전부터 계속 되어왔다. 좁게는 지속가능의 범위를 경제적 활동영역에 국한 할 수도 있지만 지속 가능한 개발의 이념은 우리 인류의 경제적 활동 뿐만 아니라 자연자원을 포함한 인류전체의 복지를 포함한 모든 생태계의 조화로운 발전이 포함 되어야 한다. 본 논문은 기존의 국민총생산(GNP) 지표가 지속가능을 측정 하는 지표로 미흡하다는 점과 또 지속가능발전의 궁극적 목표인 국민복지를 제대로 반영하지 못한다는 것을 지적함과 동시에 "지속가능 (Sustainability)" 과 "국민복지 (Human-welfare)"의 측정에 있어서 4가지 중요한 구성요소로서 다양성(Diversity), 비 화폐적 경제활동(Non-monetized economic activity), 비 지속가능 활동의 수출(Export non-sustainability), 그리고 존재가치(Existence value; Non-use value,)를 제시하고자 하였다.
Wireless sensor networks for long-term structural health monitoring
Meyer, Jonas,Bischoff, Reinhard,Feltrin, Glauco,Motavalli, Masoud Techno-Press 2010 Smart Structures and Systems, An International Jou Vol.6 No.3
In the last decade, wireless sensor networks have emerged as a promising technology that could accelerate progress in the field of structural monitoring. The main advantages of wireless sensor networks compared to conventional monitoring technologies are fast deployment, small interference with the surroundings, self-organization, flexibility and scalability. These features could enable mass application of monitoring systems, even on smaller structures. However, since wireless sensor network nodes are battery powered and data communication is the most energy consuming task, transferring all the acquired raw data through the network would dramatically limit system lifetime. Hence, data reduction has to be achieved at the node level in order to meet the system lifetime requirements of real life applications. The objective of this paper is to discuss some general aspects of data processing and management in monitoring systems based on wireless sensor networks, to present a prototype monitoring system for civil engineering structures, and to illustrate long-term field test results.
Meyer, Sven W.,Mordhorst, Thorsten F.,Lee, Choonghwan,Jensen, Paul R.,Fenical, William,Kö,ck, Matthias Royal Society of Chemistry 2010 Organic & biomolecular chemistry Vol.8 No.9
<P>A novel lumazine peptide, penilumamide (1), was isolated from the fermentation broth of a marine-derived fungal strain, identified as <I>Penicillium</I> sp. (strain CNL-338) and the structure of the new metabolite was determined by analysis of ESI-TOF MS data combined with 1D and 2D NMR experiments.</P> <P>Graphic Abstract</P><P>Penilumamide was isolated from the fungal strain <I>Penicillium</I> sp. and its structure was determined by analysis of ESI-TOF MS data combined with 1D and 2D NMR experiments. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=b910629d'> </P>
Meyer, Roland,Zhang, Xiangyang,Nau, Werner M. Korean Society of Photoscience 2009 Photochemical & photobiological sciences Vol.8 No.12
Azoalkanes of the 2,3-diazabicyclo[2.2.2]-oct-2-ene type have been introduced as probes for antioxidants in homogeneous solution as well as in liposomes and micelles. The bimolecular fluorescence quenching of the bridgehead dichloro-substituted 1,4-dichloro-2,3-diazabicyclo[2.2.2]-oct-2-ene (3) was compared with that of the parent compound 2,3-diazabicyclo[2.2.2]-oct-2-ene (1) and the bridgehead-dialkylated compound 4-methyl-1-isopropyl-2,3-diazabicyclo[2.2.2]-oct-2-ene (2). Compound 3 showed a more efficient fluorescence quenching in C-H containing solvents (e.g., in n-hexane: 30 ns for 3 versus 340 ns for 1 and 770 ns for 2), but a less efficient quenching in aqueous solution (e.g., in deaerated $H_2O$: 485 ns for 3 versus 420 ns for 1 and 340 ns for 2), and also by molecular oxygen ($k_q/10^9M^{-1}s^{-1}$ = 0.32 for 3 versus 2.5 for 1 and 1.9 for 2). Towards low-molecular weight antioxidants, compound 3 showed a significantly higher reactivity (e.g., for reduced glutathione: $k_q/10^9M^{-1}s^{-1}$ = 1.8 for 3 versus 0.82 for 1 and 0.39 for 2), at the expense of a lower differentiation between the investigated antioxidants (lower selectivity). The increased reactivity of 3 and lower, as well as qualitatively different, selectivity is attributed to a combination of factors, most importantly the slightly increased excitation energy of 3 and its lower excited-state nucleophilicity. The latter was independently corroborated, besides its longer fluorescence lifetime in aqueous solution, through the trends in quenching rate constants of the azoalkanes 1.3 towards electron-deficient versus electron-rich lactone antioxidants of the benzofuranone type. While common inorganic buffer constituents caused no fluorescence quenching, significant quenching was observed, as a curiosity, for hydrogencarbonate ($k_q/10^6M^{-1}s^{-1}$ = 1.7 for 3 versus 2.4 for 1 and 0.45 for 2), with a fully manifested kinetic deuterium isotope effect ($k_q(H_2O)/k_q(D_2O)$ = 12) for 3.