1,143 research outputs found
Relevant Professional Development: Reflective of Adult Learning Styles
This action research project was instigated to determine the effects of professional development (PD) for practicing Montessori teachers using the Montessori Language materials. The specific targeted materials included: vocabulary cards, sound analysis, sandpaper letters, moveable alphabet, pencil use, and reading. The research took place during a four week period in a large west coast Montessori school that serves children between 18 months and 12 years old. The teachers who participated in the study all worked with children between the ages of 3 – 6 years old. The data was collected using a provider journal (notes taken by the researcher during the PD sessions), questionnaires and weekly teacher logs. The researcher used available PD literature to plan and execute the study, which highlighted the importance of teachers participating in PD that was designed around participant identified content. The literature also provided guidance as to the content methods to incorporate into the PD sessions. At the conclusion of the study, findings revealed that the teachers benefited from support in all the language categories listed. They also became aware of the content delivery methods that best met their individual needs. Future research is needed to determine the content and delivery needs of teachers in different stages of their careers. Keywords
Determinação do nitrogênio da biomassa microbiana do solo (BMS-N).
Materiais e equipamentos necessários; Para fumigação; Para extração; Para determinação do nitrogênio microbiano; Amsotra; Limitações do método; Procedimento; Preparação da amostra; Determinação da umidade na capacidade de campo do solo; Procedimento analítico; Determinação da umidade do solo; Fumigação; Extração; Determinação do nitrogênio microbiano; Cálculo da molaridade exata da solução de ácido sulfúrico (H2S04) 0,015M; Cálculo do teor de N nos extratos (Equação 4); Cálculo da BMS-N; Equação 5.bitstream/CNPAB-2010/34388/1/cot096.pdfParceria: UFRR
Genetic characterization of four native Italian shepherd dog breeds and analysis of their relationship to cosmopolitan dog breeds using microsatellite markers
Very little research into genetic diversity of Italian native dog breeds has been carried out so far. In this study we aimed to estimate and compare the genetic diversity of four native Italian shepherd dog breeds: the Maremma, Bergamasco, Lupino del Gigante and Oropa shepherds. Therefore, some cosmopolitan dog breeds, which have been widely raised in Italy for a long time past, have also been considered to check possible influence of these dog populations on the Italian autochthonous breeds considered here. A total of 212 individuals, belonging to 10 different dog breeds, were sampled and genotyped using 18 autosomal microsatellite loci. We analyzed the genetic diversity of these breeds, within breed diversity, breed relationship and population structure. The 10 breeds considered in this study were clearly genetically differentiated from each other, regardless of current population sizes and the onset of separate breeding history. The level of genetic diversity explained 20% of the total genetic variation. The level of H E found here is in agreement with that found by other studies. The native Italian breeds showed generally higher genetic diversity compared with the long established, well-defined cosmopolitan dog breeds. As the Border Collie seems closer to the Italian breeds than the other cosmopolitan shepherd dogs considered here, a possible utilization of this breed to improve working performance in Italian traditional working shepherd dogs cannot be ignored. The data and information found here can be utilized in the organization of conservation programs planned to reduce inbreeding and to minimize loss of genetic variability
Scanning Electron Microscope Cytochemistry of Blood Cells
The backscattered electron imaging (BEI) mode of scanning electron microscopy (SEM) has been applied to study various histo-cytochemical reactions in biological specimens since the early seventies. Due to numerous, recent technical improvements the BEI mode of SEM now belongs to the routine of many SEM laboratories.
For cytochemistry, BEI has been mainly used to: visualize intracellular structures and organelles; recognize the different cell types in heterogeneous populations or tissues; study the correlations between enzymatic activities and cell surface features.
We have evaluated the most relevant results obtained in the study of blood cells and the possible future applications of these techniques
Effects of Lactobacillus acidophilus D2/CSL (CECT 4529) supplementation on healthy cat performance
Background The present study aimed to evaluate the effects of the probiotic strain Lactobacillusacidophilus D2/CSL (CECT 4529) on nutritional condition and faecal quality in cats. Methods Ten healthy adult cats from the same cattery were included (aged >9 months; male:female sex ratio=3:7). The animals were randomly assigned to a control group (CTR; n=5; male:female=1:4; room 1: 16 m 2) and to a treated group (LACTO; n=5; male:female=2:3; room 2: 16 m 2) receiving the same commercial dry diet. The LACTO group diet was supplemented with the probiotic (5 x 10 9 cfu/kg feed at least). A five-week experimental period was applied, and nutritional status was monitored by bodyweight (BW) and body condition score (BCS). Faecal quality was evaluated using faecal score (FS) and faecal moisture (FM) parameters. Plate counts of some faecal bacteria species were carried out. The data obtained were analysed using MIXED, GLM and NPAR1WAY procedures (SAS V.9.4; P 640.05). Results The two groups did not show differences in BW and BCS data. A clear effect of the probiotic supplementation on FM was recorded (LACTO 44 per cent v CTR group 46 per cent; P=0.04). FS in the LACTO group (3.35) was close to ideal values (2-3) in comparison with the CTR group (3.75). Positive effects of Lacidophilus D2/CSL have been recorded in terms of increase in faecal lactobacilli counts and reduction in faecal coli counts. Conclusions This study's preliminary results describe how inclusion of Lacidophilus D2/CSL (CECT 4529) probiotic strain in cats' diets could effectively improve faecal quality parameters and consequently gut health in adult healthy cats
Effects of probiotic Lactobacillus acidophilus D2/CSL (CECT 4529) on the nutritional and health status of boxer dogs
Background The aim of the present study was to investigate the effects of Lactobacillus acidophilus D2/CSL
(CECT 4529) probiotic strain on nutritional status and faecal and microbiological parameters in a group of
purebred boxers.
Methods Forty healthy adult boxer dogs were randomly assigned to a treated (LACTO) group receiving a
commercial diet supplemented with L acidophilus D2/CSL (CECT 4529) to a final concentration of 5.0 x 109
colony-forming
unit/kg of food, and a control (CTR) group receiving the same diet but without the probiotic
(placebo). Nutritional status (body weight, skinfold thickness, body condition score) and faecal quality
parameters were analysed.
Results No differences in body weight and skin thickness were found during the whole experimental period.
Dogs in the LACTO group showed a significantly higher body condition score than those in the CTR group
(4.86\ub10.55 v 4.65\ub10.65), and no significant differences were recorded in body weight and skinfold thickness.
The LACTO group showed a significantly lower faecal moisture (in per cent) compared with the CTR group
(0.67\ub10.007 v 0.69\ub10.007). Faecal hardness (in kg) was higher in the LACTO group than in the CTR group
(0.86\ub10.047 v 0.70\ub10.051), and faecal score also improved in the LACTO group (3.78\ub10.95 v 4.25\ub10.91). A
significant difference in total Escherichia coli counts as well as in lactobacilli counts between the CTR and LACTO
groups was only detected at 28 days.
Conclusion Supplementation of L acidophilus D2/CSL (CECT 4529) significantly improved the nutritional status
and faecal parameters of dogs
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