Results 311 to 320 of about 323,067 (356)
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Microbes and Infection, 2000
Microsporidia are small, single-celled, obligately intracellular parasites that have caused significant agricultural losses and interference with biomedical research. Interest in the microsporidia is growing, as these organisms are recognized as agents of opportunistic infections in persons with AIDS and in organ transplant recipients. Microsporidiosis
E S, Didier +3 more
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Microsporidia are small, single-celled, obligately intracellular parasites that have caused significant agricultural losses and interference with biomedical research. Interest in the microsporidia is growing, as these organisms are recognized as agents of opportunistic infections in persons with AIDS and in organ transplant recipients. Microsporidiosis
E S, Didier +3 more
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2020
In comparison to birds, magnetoreception in mammals has been understudied. This negligence has historical and methodological causes. Paradigms that have been applied in the study of magnetoreception in mammals (particularly, and among others, spontaneous or conditioned nest-building assay, magnetic alignment, maze studies and direction choice tests ...
Burda, H. +5 more
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In comparison to birds, magnetoreception in mammals has been understudied. This negligence has historical and methodological causes. Paradigms that have been applied in the study of magnetoreception in mammals (particularly, and among others, spontaneous or conditioned nest-building assay, magnetic alignment, maze studies and direction choice tests ...
Burda, H. +5 more
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Russian Journal of Developmental Biology, 2001
A review of the development of the method of nuclear transplantation and cloning of animals with the use of nuclei of embryonic and adult cells is presented. We also present the results of studies of nuclear remodeling and reprogramming in the reconstructed oocyte and of cytoplasmic factors that control these processes.
I S, Lagutina, V V, Galat
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A review of the development of the method of nuclear transplantation and cloning of animals with the use of nuclei of embryonic and adult cells is presented. We also present the results of studies of nuclear remodeling and reprogramming in the reconstructed oocyte and of cytoplasmic factors that control these processes.
I S, Lagutina, V V, Galat
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Mammals and mammal-like robots
2018Mammals are warm-blooded tetrapod vertebrates that evolved from reptilian ancestors during the late Triassic period around 225 million years ago. This chapter focuses on some of the most distinctive mammalian characteristics and on integrated robotic systems that seek to capture these capabilities in biomimetic artifacts.
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The Quarterly Review of Biology, 1960
Melanocytes may be regarded as unicellular, pigment-secreting glands, largely though not entirely confined to the epidermis, of which they are a constant though often un-recognized cellular component. Their numerical incidence, and their branching form, with numerous dichotomizing processes, are such as to form a reticular system within the epidermis ...
Billingham, R E, Silvers, W K
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Melanocytes may be regarded as unicellular, pigment-secreting glands, largely though not entirely confined to the epidermis, of which they are a constant though often un-recognized cellular component. Their numerical incidence, and their branching form, with numerous dichotomizing processes, are such as to form a reticular system within the epidermis ...
Billingham, R E, Silvers, W K
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Comprehensive Physiology, 2011
AbstractThe ability of diving mammals to forage at depth on a breath hold of air is dependent on gas exchange, both in the lung and in peripheral tissues. Anatomical and physiological adaptations in the respiratory system, cardiovascular system, blood and peripheral tissues contribute to the remarkable breath‐hold capacities of these animals.
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AbstractThe ability of diving mammals to forage at depth on a breath hold of air is dependent on gas exchange, both in the lung and in peripheral tissues. Anatomical and physiological adaptations in the respiratory system, cardiovascular system, blood and peripheral tissues contribute to the remarkable breath‐hold capacities of these animals.
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The Quarterly Review of Biology, 1977
This review considers the behavioral, ecological, and reproductive characteristics of mammals exhibiting monogamy, i.e., mating exclusivity. From a discussion of the life histories of selected species of monogamous primates, carnivores, rodents and ungulates, several trends emerge. Two forms of monogamy occur, Type I, facultative, and Type II, obligate.
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This review considers the behavioral, ecological, and reproductive characteristics of mammals exhibiting monogamy, i.e., mating exclusivity. From a discussion of the life histories of selected species of monogamous primates, carnivores, rodents and ungulates, several trends emerge. Two forms of monogamy occur, Type I, facultative, and Type II, obligate.
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Genetica, 1959
Eighteen new cases of colour mosaics are described. Previous reports of mosaics are collocated and briefly discussed. Various mechanisms are described which may engender three types of mosaicism. These are the (1) somatic, (2) the soma-gonadic and (3) the gonadic.
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Eighteen new cases of colour mosaics are described. Previous reports of mosaics are collocated and briefly discussed. Various mechanisms are described which may engender three types of mosaicism. These are the (1) somatic, (2) the soma-gonadic and (3) the gonadic.
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Mammals, big mammals and statistics
LutraThe title of this editorial may look oddly familiar. That’s because it riffs on the famous phrase “lies, damned lies and statistics,” a quote of slightly uncertain origin (Mark Twain is one of the options, as seems frequently the case). It’s often used to describe the persuasive power of statistics to bolster a weak argument.
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The Bulletin of Mathematical Biophysics, 1948
By considering the general energy balance between the energy of muscular contraction in the extremities, kinetic energy imparted to the animal and the energy lost in the lifting of the center of gravity and in the possible muscular viscosity, an expression is derived for the speed of an animal in terms of the constant which determine its shape and ...
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By considering the general energy balance between the energy of muscular contraction in the extremities, kinetic energy imparted to the animal and the energy lost in the lifting of the center of gravity and in the possible muscular viscosity, an expression is derived for the speed of an animal in terms of the constant which determine its shape and ...
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