Results 71 to 80 of about 78,011 (319)
The Anatomical Record, EarlyView.Abstract Stages of embryonic development for reptiles have been presented in tables that may include all or part of embryonic development. When oviposition occurs in some lizards, embryos are already in the later stages of development; likewise, the size of the eggs increases as incubation time progresses.
Nivia Rocio Antonio‐Rubio +3 more
wiley +1 more source
A rare case of primary mediastinal yolk sac tumor
Archives of Medicine and Health Sciences, 2014 Yolk sac tumor (endodermal sinus tumor) is a subtype of germ cell tumor and a highly malignant neoplasm. In addition to presenting in ovaries and testes, the tumor has been detected at several extragonadal sites, including the presacral area, the ...
Vinay Mahishale +4 more
doaj +1 more source
Cardiovascular ephrinB2 function is essential for embryonic angiogenesis [PDF]
, 2002 EphrinB2, a transmembrane ligand of EphB receptor tyrosine kinases, is specifically expressed in arteries. In ephrinB2 mutant embryos, there is a complete arrest of angiogenesis.
Anderson, David J., Gerety, Sebastian S.
core
Application of Metal‐Organic Framework Composites
ChemistryEurope, EarlyView.This review summarizes the applications of MOF composites in adsorption, energy storage, catalysis, biomedicine, and sensing. It also discusses the functionality of MOF composites from a dimensional perspective. Environmental issues have intensified, and demand for energy continues to grow, making it challenging for conventional materials to meet the ...
Yihao Chen +5 more
wiley +1 more source
Yolk sac utilization in ostrich (Struthio camelus) chicks : research communication
Onderstepoort Journal of Veterinary Research, 2004 The mass of residual yolk sac expressed as a percentage of initial mass of the egg from which the chick hatched decreased sharply in the first 2 days post-hatching.
E.Z. Mushi, M.G. Binta, R.G. Chabo
doaj +1 more source
Incubation of penguin eggs [PDF]
, 2003 The preservation of rare and endangered species of birds requires finding efficient, and above all successful, methods of breeding them in captivity. One strategy adopted is to remove eggs from the mother, making her lay more eggs, and then incubating ...
Edwards, Carina +2 more
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Recent Advances in Tailoring Active Site Microenvironments of Fe–N–C Catalysts for Oxygen Reduction
ChemistryEurope, EarlyView.This review summarizes the main factors affecting Fe–N–C catalysts for ORR: activity depends on active site structure, electronic configuration, and porosity, while stability is limited by metal leaching, carbon degradation, and inactive phase formation.
Mudassar Maqsood +6 more
wiley +1 more source
Mixed Germ Cell Tumor with Extensive Yolk Sac Tumor Elements in the Frontal Lobe of an Adult
Case Reports in Surgery, 2012 Intracranial nongerminomatous germ cell tumors (NGGCTs) in unusual locations are extremely rare. Here, we report a case of a yolk sac tumor in the frontal lobe in a middle-aged patient.
Toshihide Takahashi +6 more
doaj +1 more source
Determination of copper in embryos and very young specimens of Sepia officinalis [PDF]
, 1970 The total amount of copper in embryos and newly hatched young individuals of Sepia officinalis L. has been determined by microtechnique, using bathocuproine-sulfonate as complexing reagent.
Decleir, W., Lemaire, J., Richard, A.
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Mahi-mahi (Coryphaena hippurus) life development: morphological, physiological, behavioral and molecular phenotypes. [PDF]
, 2019 BackgroundMahi-mahi (Coryphaena hippurus) is a commercially and ecologically important fish species that is widely distributed in tropical and subtropical waters.
Benetti, Daniel D +11 more
core +2 more sources