Results 31 to 40 of about 38,044 (309)

Morphological types and seasonal variation in eggs of zooplankton species from bottom sediments in Bahia Blanca Estuary, Argentina [PDF]

open access: yes, 2006
Resting egg production is a survival mechanism in zooplankton species against adverse environmental conditions. Egg accumulation in the upper layer of the bottom sediments is fundamental to the resurgence of the populations of these species when ...
Berasategui, Anabela Anhi   +2 more
core   +3 more sources

Placental markers of miscarriage

open access: yesPatologìâ, 2021
Successful implantation involves a high degree of development of spiral arteries, combined with high proliferative activity, which ensures the formation of a healthy placenta, full uterine-placental circulation, and the birth of a healthy child.
A. A. Zhyvetska-Denysova   +5 more
doaj   +1 more source

Localized ultraviolet laser microbeam irradiation of early Drosophila embryos: Fate maps based on location and frequency of adult defects [PDF]

open access: yes, 1979
Drosophila embryos were locally irradiated with a 257-nm laser microbeam during blastoderm and germ band stages. Depending on stage and beam diameter (10–30 μm), from 0 to 45 nuclei were exposed to the uv radiation.
Cremer, Christoph   +4 more
core   +1 more source

SLC20a1/PiT-1 is required for chorioallantoic placental morphogenesis

open access: yesVascular Biology, 2023
The placenta mediates the transport of nutrients, such as inorganic phosphate (Pi), between the maternal and fetal circulatory systems. The placenta itself also requires high levels of nutrient uptake as it develops to provide critical support for fetal ...
Ana Correia-Branco   +10 more
doaj   +1 more source

Influence of chorionicity on healthy twin pregnancy outcome [PDF]

open access: yesVojnosanitetski Pregled, 2020
Background/Aim. It is still under debate in what sense and extent can chorionicity impact the pregnancy outcome of twins without gestational complications specific for monochorionicity.
Akšam Slavica   +4 more
doaj   +1 more source

El sistema reproductor femenino de Zearaja chilensis (Guichenot, 1848) (Chondrichthyes, Rajidae): Gametogénesis y validación microscópica de los criterios de madurez [PDF]

open access: yes, 2015
Los condrictios son extremadamente susceptibles a la explotación pesquera debido, entre otras cosas, a sus adaptaciones reproductivas. Los conocimientos básicos de sus parámetros reproductivos son esenciales, ya sea desde el punto de vista ecológico como
Di Giacomo, Edgardo Ernesto   +2 more
core   +1 more source

Fetal Membrane Epigenetics

open access: yesFrontiers in Physiology, 2020
The characteristics of fetal membrane cells and their phenotypic adaptations to support pregnancy or promote parturition are defined by global patterns of gene expression controlled by chromatin structure.
Tamas Zakar   +6 more
doaj   +1 more source

Insecticide effect of zeolites on the tomato leafminer Tuta absoluta (Lepidoptera: Gelechiidae) [PDF]

open access: yes, 2016
(1) Background: The tomato leafminer Tuta absoluta (Lepidoptera: Gelechiidae) is a key tomato insect pest. At present, it is considered to be a serious threat in various countries in Europe, North Africa, and Middle East.
De Clercq, Patrick   +3 more
core   +3 more sources

Standardized reporting of amnion and amnion/chorion allograft data for wound care

open access: yesHealth Science Reports, 2022
Background The favorable biological and mechanical properties of the most common components of the placenta, the amnion and chorion, have been explored for regenerative medical indications. The use of the combination of amnion and chorion has also become
Taylor J. Sabol   +3 more
doaj   +1 more source

Macrophage migration inhibitory factor (MIF) family in arthropods : Cloning and expression analysis of two MIF and one D-dopachrome tautomerase (DDT) homologues in Mud crabs, Scylla paramamosain [PDF]

open access: yes, 2016
Acknowledgements This research was supported by grants from the National Natural Science Foundation of China (Nos. 31172438 and U1205123), the Natural Science Foundation of Fujian Province (No.
Duan, Li-Peng   +7 more
core   +1 more source

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