23 research outputs found
Monospecific helminth and arthropod infections in an urban population of brown rats from Doha, Qatar
Parasitic infections were studied for the first time in an urban population of brown rats (Rattus norvegicus) from Doha. Only one species of helminth was found, the cestode Hymenolepis diminuta, and one ectoparasite, the flea Xenopsylla astia, from a sample size of 136 rats (52 males and 84 females). The prevalence of H. diminuta was 17.6%, increasing with host age but not in relation to host sex nor season of capture. Host age was a key factor in influencing abundance of infection, although there was a significant three-way interaction with season and host sex arising through heavy infections in juvenile male rats in the summer. The prevalence of X. astia was 45.6%, although both prevalence and abundance of infestations were season and host age dependent. In the winter prevalence and abundance were similar in both host age and sex groups, but in the summer both parameters of infestation were markedly higher among juveniles compared with adults. We found evidence for some association between these two species: H. diminuta was more prevalent among rats with fleas than among those without, although this association was season-, and independently sex- and age-dependent. There were no quantitative interactions and reasons for this are discussed in relation to the foraging and breeding behaviour of the brown rat in Qatar
Monospecific helminth and arthropod infections in an urban population of brown rats from Doha, Qatar
Parasitic infections were studied for the first time in an urban population of brown rats (Rattus norvegicus) from Doha. Only one species of helminth was found, the cestode Hymenolepis diminuta, and one ectoparasite, the flea Xenopsylla astia, from a sample size of 136 rats (52 males and 84 females). The prevalence of H. diminuta was 17.6%, increasing with host age but not in relation to host sex nor season of capture. Host age was a key factor in influencing abundance of infection, although there was a significant three-way interaction with season and host sex arising through heavy infections in juvenile male rats in the summer. The prevalence of X. astia was 45.6%, although both prevalence and abundance of infestations were season and host age dependent. In the winter prevalence and abundance were similar in both host age and sex groups, but in the summer both parameters of infestation were markedly higher among juveniles compared with adults. We found evidence for some association between these two species: H. diminuta was more prevalent among rats with fleas than among those without, although this association was season-, and independently sex- and age-dependent. There were no quantitative interactions and reasons for this are discussed in relation to the foraging and breeding behaviour of the brown rat in Qatar
Outcome of Abdominal Massage Before Gavage Feeding on Tolerated Feeding for Low Birth Weight Infants
Aim: To assess the effect of abdominal massage pre-gavage feeding on tolerated feeding for low birth weight (LBW) infants. Methods: An experimental research design at a government hospital at Egypt. Purposive sample composed of LBW infants was randomly divided into study and control groups each with 60 LBW infants. Results: A total of 55% of the participants in the study group grew sleepy, whereas only 15% of the studied participants in the control group grew sleepy. The abdominal circumference after feeding in the study group was 23.18 ± 2.99 cm, whereas that in the control group was 24.79 ± 2.99 cm. The gastric residual volume in the study group was 0.8 ± 0.10 ml, whereas that in the control group was 3.86 ± 1.03 ml. Conclusion: Finally, abdominal massage had a positive impact on the postfeeding state of alertness and feeding tolerance. © 2021 The Authors. Nursing Open published by John Wiley & Sons Ltd.This study was self-funded, without any external sources I would like to express my sincere thanks for parents of neonates who included at the study
Udfordring eller mulighed for økologien
During one intensive week in October 2005, the authors were gathered to discuss the impact that globalisation has on the Organic Food Systems and the opportunities that globalisation opens up for developing these systems. The meeting took place as a Ph.D. course under the auspices of the Research School of Organic Farming and Food Systems (SOAR; www.soar.dk). All participants research within Organic Agriculture and Food Production in one way or another
Synthesis and biological activity of some new aminoacylcarbazole derivatives. Part I
The syntheses of different 9-(N-phthalyl- or N-tosyl- or free aminoacyl)carbazoles and the corresponding derivatives of 3,6-dinitrocarbazoles and some derivatives of 3,6-diamino-9-(N-phthalylaminoacyl)carbazoles (II-XXXII) are described. Compounds VIII, XIII-XVII and XXIII-XXVII were found to be active against a number of microorganisms.Wiley Online Librar