Results 101 to 110 of about 15,086 (272)

The influence of season, photoperiod, and pineal melatonin on immune function. [PDF]

open access: yes, 1995
In addition to the well-documented seasonal cycles of mating and birth, there are also significant seasonal cycles of illness and death among many animal populations.
Demas, G   +3 more
core   +1 more source

Effects of metabolic rate and sperm competition on the fatty-acid composition of mammalian sperm [PDF]

open access: yes, 2016
The sperm membrane is a key structure affecting sperm function and thus reproductive success. Spermatozoa are highly specialized and differentiated cells that undergo a long series of processes in the male and female reproductive tracts until they reach ...
Delbarco-Trillo, Javier   +1 more
core   +1 more source

Effect of deuterium on the circadian period and metabolism in wild-type and tau mutant Syrian hamsters [PDF]

open access: yes, 2000
Homozygous tau mutant Syrian hamsters (tau-/-) have a free-running circadian period (τ) around 20 h and a proportionally higher metabolic rate compared with wild-type hamsters (tau+/+) with a period of circa 24 h.
Daan, Serge,   +2 more
core   +1 more source

Effects of consumption of galactooligosaccharides obtained through whey enzymatically modified on the faecal flora and nutritional parameters of hamsters [PDF]

open access: yes, 2017
The aim of this research was to evaluate the influence of wheyenzymatically modified rich in galactooligosaccharides in thenutritional characteristics and effects in the microflora of cecumcontents by the study with Golden Syrian hamsters ...
Burkert, Carlos André V.   +7 more
core  

Control of the skin scarring response [PDF]

open access: yes, 2009
There comes a time when the understanding of the cutaneous healing process becomes essential due to the need for a precocious tissue repair to reduce the physical, social, and psychological morbidity.
Ferreira, Lydia Masako   +3 more
core   +3 more sources

Rudimentary Coronary Artery in Syrian Hamsters (Mesocricetus auratus)

open access: yesAnatomia, Histologia, Embryologia, 2009
SummaryCongenital underdevelopment of one or more main branches of the coronary arteries has been reported in man, but not in non‐human mammals. In man, this defective coronary artery arrangement may cause myocardial ischaemia and even sudden death.The main goal of this study was to describe the coronary artery distribution patterns associated with the
Durán Boyero, Ana Carmen   +6 more
openaire   +4 more sources

Quantification of fecal estradiol and progesterone metabolites in Syrian hamsters (Mesocricetus auratus)

open access: yesBrazilian Journal of Medical and Biological Research, 2005
Alternative methods to the utilization of laboratory animal blood and its by-products are particularly attractive, especially regarding hamsters due to their small size and difficulties in obtaining serial blood samples.
M.O.M. Chelini   +4 more
doaj   +1 more source

Detección de virus Chikungunya y Zika en animales: Revisión sistemática y meta-análisis [PDF]

open access: yes, 2019
La primera descripción de muchas enfermedades arbovirales se produjo en primer lugar en animales, incluidos múltiples alfavirus y flavivirus, como el Chikungunya (CHIKV) y el Zika (ZIKV), respectivamente.
Jiménez Cruz, Stephania
core  

Arrhythmic perch hopping and rhythmic feeding of starlings in constant light: Separate circadian oscillators? [PDF]

open access: yes, 1984
Perch hopping activity and food intake were recorded in starlings in different intensities of continuous illumination (LL), varying from 0.1 to 1000 lux. Circadian rhythmicity in perch hopping disappeared in 10 lux and all higher intensities. In contrast,
Daan, S.,   +2 more
core   +2 more sources

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