Sexual Dimorphism in the Compound Eye of Rhagophthalmus ohbai (Coleoptera: Rhagophthalmidae): II. Physiology and Function of the Eye of the Male

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.

Sexual Dimorphism in the Compound Eye of Rhagophthalmus ohbai (Coleoptera: Rhagophthalmidae): II. Physiology and Function of the Eye of the Male

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.

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.

Plant Collecting and Its Importance in the Development of New Types of Flowers

Meyer,Fred 서울여자대학교 대학원 1996 論文集 Vol.- No.4

All horticultural crops currently under cultivations were derived plant brought from wild sources. Some of these crops like roses, chrysanthemums, gladiolus have undergone a great deal of improvement over the years, while other crops have basically been included into horticulture without any real improvement. My presentation will focus my plant collection trips to various countries and how they were used directly into cultivation. Further, many species of new flowers will be introduced and breeding program to improve horticultural characteristics and to create new types of flowers will be described.

Togetherness as a Condition for Life and Health -Holistic Environments from the Cell to the Universe

Meyer-Abich, Klaus Michael 한국환경철학회 2006 환경철학 Vol.0 No.5

Togetherness not only with fellow human beings but also with trees or with the connatural world in general is relevant for human identity and health, as statistical studies show. Western individualism tends to ignore these commons. The same is true for nature in general since species and individuals emerge from togetherness as well. In every being the universe has become that being. Eating and being eaten is part of this connaturality but does not exclude peace because it allows for common security and generally results in some enhancement or grading-up of the world. While anthropocentrism takes the world as a bag of resources to serve our needs, in physiocentrism like all the other beings we serve others in serving ourselves, enriching the world by cultivation instead of consumption. Identity, health, and disease are holistic phenomena in nature. This is also found on the level of society as people can become sick from social relations and on the personal level, i.e. with respect to the togetherness of organs. Indeed the holistic conditioning of any part by togetherness with its environment, or of the part with respect to the whole, begins already in the female egg which is not controlled by the genome but develops itself by means of it. Peace with nature prevails when every individual lives by virtue of the part's good company with the whole, immediately felt as the environment on different levels.

Utilization of Grawfish Pigment and Other Fishery Processing By-Products

Meyers, S.P.,No, H.K. 대구효성가톨릭대학교 식품과학연구소 1995 식품과학지 Vol.7 No.-

Concepts in fishery processing increasingly involve utilization of various by-products, traditionally identified as waste with minimal economic value. Among these are fish frames, whole crustacean meals for use in crustacean aquaculture, and the biopolymers, chitin and chitosan. More recent studies have focused on a variety of value-added uses for such processing by-products. Other investigations have included recovery of protein hydrolysates, soluble proteins and amino acids, and seafood flavor compounds. Extraction of the carotenoid astaxanthin from Louisiana crawfish processing wastes, and food-grade crabmeat and flavorants from blue crab processing, are discussed as examples of integrated approaches toward total by-product recovery.

ILEORECTAL ANASTOMASIS: AN ANIMAL MODEL FOR STUDYING PROTEIN DIGESTION IN THE SMALL INTESTINE OF RUMINANTS

Meyer, J.H.F.,van Nickerk, A.C.M.,van der Walt, J.G. Asian Australasian Association of Animal Productio 1989 Animal Bioscience Vol.2 No.3

Toward Accounting for Sustainable Economic Develpment : Measurement Problems at Different Levels of Aggregation

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.

Kann die deutsche Vereinigung ein Beispiel fu¨r Korea sein ?

Meyer, Hans 中央大學校 民族發展硏究院 2004 民族發展硏究 Vol.- No.9-10

Ich mo¨chte Ihnen anhand einiger konkreter Beispiele aufzeigen, welche Probleme sich bei der deutschen Einigung stellten und wie versucht worden ist, sie zu lo¨sen. Bei der Behandlung der Arbeitsverha¨ltnisse, der Auflo¨sung von Institutionen, dem Aufbau einer modernen Wirtschaftsstruktur, dem notwendigen Personaltransfer und bei der Behandlung der Eliten kann man einen Erkenntnisgewinn fu¨r Korea nur gewinnen ko¨nnen, wenn man als Szenario den Zusammenbruch des kommunistischen Nordkorea voraussetzt. Fu¨r andere Probleme, wie die von mi?? nicht behandelten Finanzierungsprobleme, ist die Art, wie es zu einer Einigung kommen wird, dagegen eher zweitrangig.

Behavioural and phylogeographic observations on Epipomponia nawai (Dyer, 1904): An East Asian moth (Lepidoptera; Epipyropidae) whose larvae are ectoparasitic on cicadas (Hemiptera; Cicadidae; Sonatini)

Meyer‑Rochow Victor Benno,Mohamadzade Namin Saeed,Jung Chuleui 한국응용곤충학회 2023 Journal of Asia-Pacific Entomology Vol.26 No.1

The lepidopteran family of the Epipyropidae contains currently 32 known species of moths with larvae that are parasitic on plant and leafhoppers as well as cicadas. This paper focuses on behavioural aspects of the final instar of the cicada parasite Epipomponia nawai (Dyer 1904) on the cicada Hyalessa maculaticollis (de Motschulsky 1866) and represents only the second report of the species from South Korea. This species is a new host for E. nawai in Korea, since in the past it had only been reported once from Meimuna opalifera and Oncotympana fuscata in Korea. Molecular relationships between specimens of E. nawai collected in China, Japan, and Korea were analysed. The Chinese haplotypes fell into two groups: one clearly related to the Korean haplotype, but the other tightly affiliated with the Japanese haplotype. The findings suggest two routes for the occurrence of E. nawai in mainland China. Once the host cicada was dead or too weak to move, the caterpillar crawled away from it, seeking a place to pupate. Very little is known about parasitic Lepidoptera and therefore any information on host species or behavioural aspects is of importance.