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Papers by edi seger
Oecologia, 2005
Maternal provisioning of embryos in Gambusia (Poeciliidae) entails both production of large, yolk... more Maternal provisioning of embryos in Gambusia (Poeciliidae) entails both production of large, yolky eggs and mother-to-embryo transfer of nutrients, the latter of which is readily quantified using injection of radiolabeled nutrients. We assayed patterns of nutrient transfer in broods of 26 Gambusia geiseri and 23 Gambusia affinis females, using injection of tritiated leucine. We examined maternal and embryo characteristics affecting the instantaneous rate of transfer and characterized the pattern of transfer to individual embryos within broods. Maternal (female size and condition) and brood characteristics (mean embryo size, developmental stage, brood size) did not predict the mean level of nutrient transfer to embryos in a brood for either species. Within broods, individual provisioning of embryos was not related to developmental stage, but was related to embryo mass in G. affinis with nutrient transfer higher to larger embryos. In addition, overall within-brood variation in nutrient transfer, measured as coefficient of variation in embryo radioactivity, was higher in G. affinis than in G. geiseri.
International Journal of Bio-medical Computing, 1994
Assessment of the current medical edi (electronic data interchange) environment shows that &a... more Assessment of the current medical edi (electronic data interchange) environment shows that 'old' syntaxes are used to specify interchange formats of messages containing highly complex information of a quickly evolving nature. After translation of message requirements towards message interchange format specifications in accordance with underlying syntax rules, system developers use modern technologies to implement the sending and receiving of edi message instances towards the distorted view imposed by these message interchange formats. The coexistence of several syntaxes and the urgent need for more standardised message types, require a new type of techniques and tools. The new mechanism should support a non-distorted message type development and provide the framework for data-driven conversion of message instances, from one interchange format to another.
Oecologia, 2005
Maternal provisioning of embryos in Gambusia (Poeciliidae) entails both production of large, yolk... more Maternal provisioning of embryos in Gambusia (Poeciliidae) entails both production of large, yolky eggs and mother-to-embryo transfer of nutrients, the latter of which is readily quantified using injection of radiolabeled nutrients. We assayed patterns of nutrient transfer in broods of 26 Gambusia geiseri and 23 Gambusia affinis females, using injection of tritiated leucine. We examined maternal and embryo characteristics affecting the instantaneous rate of transfer and characterized the pattern of transfer to individual embryos within broods. Maternal (female size and condition) and brood characteristics (mean embryo size, developmental stage, brood size) did not predict the mean level of nutrient transfer to embryos in a brood for either species. Within broods, individual provisioning of embryos was not related to developmental stage, but was related to embryo mass in G. affinis with nutrient transfer higher to larger embryos. In addition, overall within-brood variation in nutrient transfer, measured as coefficient of variation in embryo radioactivity, was higher in G. affinis than in G. geiseri.
International Journal of Bio-medical Computing, 1994
Assessment of the current medical edi (electronic data interchange) environment shows that &a... more Assessment of the current medical edi (electronic data interchange) environment shows that 'old' syntaxes are used to specify interchange formats of messages containing highly complex information of a quickly evolving nature. After translation of message requirements towards message interchange format specifications in accordance with underlying syntax rules, system developers use modern technologies to implement the sending and receiving of edi message instances towards the distorted view imposed by these message interchange formats. The coexistence of several syntaxes and the urgent need for more standardised message types, require a new type of techniques and tools. The new mechanism should support a non-distorted message type development and provide the framework for data-driven conversion of message instances, from one interchange format to another.