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Results 251 - 300 of 304
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Foley, J.I. - - 2012
AIM: To assess the preferences amongst European postgraduates (PG) in Paediatric Dentistry for the treatment of a child with differing caries severity in a primary molar tooth. STUDY DESIGN: An on-line structured questionnaire. METHODS: All European Paediatric Dentistry PGs were contacted by e-mail and asked to participate in an on-line ...
Tedesco T.K. - - 2012
AIM: To evaluate in vitro the erosive effects of beverages in the presence or absence of caries simulation (acidogenic challenge) on the microhardness of primary enamel. METHODS: Forty human primary teeth were submitted to the erosive effects: 3x20-min-long daily immersion in fresh orange juice (orange group), strawberry yogurt drink (yog ...
Saritha, S. - - 2012
AIM: To evaluate the accuracy of Root ZX II electronic apex locator (EAL) for root canal working length determination in primary teeth. METHODS: Forty primary maxillary incisor teeth were included in the study. Root ZX II EAL was used to determine the electronic working length (EL). The working length obtained ...
Kuin, D. - - 2012
AIM: This case control study was to assess whether paediatric dentists perform significantly more diagnostic, preventive and curative care in a clinical setting then do general dental practitioners. METHODS: 16 paediatric dentists were approached and a matching control group of 16 general dental practitioners drawn from an insurance random list ...
Parikh, D.R. - - 2012
Most prevalence studies on Molar Incisor Hypomineralisation (MIH) have been carried out in European countries and data from Asia especially south Asian populations are lacking. AIM: To investigate the prevalence and clinical characteristics of MIH in children residing in a western region of India. METHOD: A cross-sectional survey including 1,366 ...
Vadiakas, G. - - 2012
AIM: To investigate oral hygiene and periodontal status of 12- and 15-year old Greek adolescents, in relation to sociodemographic and behavioural parameters. METHODS: A stratified cluster sample of 1,224 12-year old and 1,257 15-year old adolescents of Greek nationality were selected and examined by calibrated examiners. Periodontal and oral hygiene ...
Curzon, M.E.J. - - 2012
BACKGROUND: The publication of basic science and clinical research findings, as well as new clinical diagnosis and treatment techniques, is widely disseminated. These days there is considerable competition to publish so the selection process is even more competitive. Aim: To present advice as to how to enhance the chances of ...
Toumba, Jack - - 2012
Walsh, Joseph - - 2012
Students, using information gained since 1859, write letters to Charles Darwin critiquing passages from the first edition of On the Origin of Species.
Price, Rebecca - - 2012
This activity uses inquiry to investigate how large changes in shape can evolve from small changes in the timing of development. Students measure skull shape in fetal, infant, juvenile, and adult chimpanzees and compare them to adult skulls of Homo sapiens, Homo erectus, and Australopithecus afarensis. They conclude by re-interpreting ...
Poli, Dorothybelle - - 2012
The video game SPORE was found to hold characteristics that stimulate higher-order thinking even though it rated poorly for accurate science. Interested in evaluating whether a scientifically inaccurate video game could be used effectively, we exposed students to SPORE during an evolution course. Students that played the game reported that ...
Nehm, Ross - - 2012
Studies of students' thinking about natural selection have revealed that the scenarios in which students reason evoke different types, magnitudes, and arrangements of knowledge elements and misconceptions. Diagnostic tests are needed that probe students' thinking across a representative array of evolutionary contexts. The ACORNS is a diagnostic test that treats ...
McComas, William - - 2012
This article recounts the story of the development of pangenesis, a principle proposed by Charles Darwin to describe the rules of inheritance and the source of new variation, two concepts vital to his proposal of evolution by natural selection. Historical accounts such as this are infrequently included in texts and ...
Stansfield, William - - 2012
A creationist has called Dobzhansky's dictum a myth. Discussion of this debate could be used as an object lesson for critical thinking.
Johnson, Norman - - 2012
Teachers may be posed with such questions as, "If we evolved from chimps, why are there still chimps?" We provide teachers with answers to this and related questions in the context of the latest genetic, fossil, and behavioral evidence. We also provide references they can use to further students' understanding ...
Pobiner, Briana - - 2012
Allchin, Douglas - - 2012
Batorsky, Roberta - - 2012
Hibbitt, Cate - - 2012
Schrenk, Christopher - - 2012
Flannery, Maura - - 2012
Johnson, Nichole - - 2012
We describe an activity that uses cards to simulate evolution. The mechanism of the evolutionary pressure in the simulation is clearly indicated for the students. This simulation is useful for allowing student experimentation by varying conditions.
Lauro, Brook - - 2012
Students discover the factors contributing to species losses worldwide by conducting a project about endangered species as a component of a larger classroom theme of biodiversity. Groups conduct research using online endangered-species databases and present results to the class using PowerPoint. Students will improve computer research abilities as well as ...
Verma, Arun - - 2012
While attempting to develop low salt, low fat and high fibre chicken nuggets, the effect of partial (40%) common salt substitution and incorporation of chickpea hull flour (CHF) at three different levels viz., 5, 7.5 and 10% (Treatments) in pre-standardized low fat chicken nuggets (Control) were observed. Common salt replacement ...
Lee, Sunghak - - 2012
The majority of laboratory animals were transported from commercial breeders to a research facility by ground transportation. During the transportation, many biological functions and systems can be affected by stress. In this experiment, the change of body weight during the transportation was measured and the recovery periods from the transportation ...
Luan, D.Q. - - 2012
Poultry products are an important source of Salmonella enterica. An effective way to reduce food poisoning due to Salmonella would be to breed chickens more resistant to infection. Unfortunately host responses to Salmonella are complex with many factors involved. To learn more about responses to Salmonella in young chickens of ...
Cho, S.H. - - 2012
Compensatory growth of grower olive flounder (Paralichthys olivaceus) was determined at suboptimal temperature (13.0[+ or -]1.9[degrees]C). Fifteen fish averaging 201.1 g per tank were distributed into 18 of 300 L flow-through tanks. Six treatments were prepared in triplicate: fish were hand-fed with an extruded pellet to apparent satiation once a ...
Han, J.C. - - 2012
An experiment was conducted to evaluate the effects of one alpha-hydroxycholecalciferol (1[alpha]-OH [D.sub.3]) on growth performance, tibia quality, and skin and meat color in broilers fed calcium (Ca)- and phosphorus (P)-deficient corn-soybean meal diets. A total of 288 male Ross broilers, at 21 days of age, were randomly assigned to ...
Zheng, L. - - 2012
Fermented Chlorella vulgaris CBT[R] was evaluated for its effects on egg production, egg quality, liver lipids and intestinal microflora in laying hens. One hundred and eight Hy-line Brown layers (n = 108), 80 wk of age, were fed a basal diet supplemented with CBT[R] at the level of 0, 1,000 ...
Ebrahimzadeh, S.K. - - 2012
The objectives of this study were to investigate the immune responses of broiler chickens fed diets supplemented with different level of chromium methionine (CrMet) in heat stress (HS) condition. Two hundred and eighty eight male broiler chickens (Ross 308) were allocated to four treatment groups (supplementation with 0, 200, 400 ...
Bozkurt, Mehmet - - 2012
Three levels of boron (0, 30, 60 ppm) were supplemented in practical corn-soybean based starter and grower diets, containing either adequate or inadequate Ca or P. A total of 1,800, 1-day-old sexed broiler chicks were assigned to six dietary treatments and fed with the experimental diets for 42 days. Boron ...
Bo, Y.K. - - 2012
Dietary supplementation with conventional linted cottonseed hulls (LCSH) is a common practice in livestock production all over the world. However, supplementation with mechanically delinted cottonseed hulls (DCSH) and cottonseed linter residue (CLR) is uncommon. Cottonseed by-products, including LCSH, DCSH and CLR, were assessed by chemical analysis, an in situ nylon ...
Gudla, P. - - 2012
The objective of this study was to evaluate the effects of forage level and oil supplement on selected strains of rumen bacteria believed to be involved in biohydrogenation (BH). A continuous culture system consisting of four fermenters was used in a 4x4 Latin square design with a factorial arrangement of ...
Wang, Jianhong - - 2012
The limiting sequence and relative ratio of lysine (Lys), methionine (Met), and threonine (Thr) for calves about 2 mo of age fed milk replacers (MR) containing soy protein are not clearly defined. The objective of the study was to investigate the effect of supplementing MR containing 22% CP, half from ...
Kim, S.H. - - 2012
In this study, two experiments were conducted to evaluate the total mixed ration with fermented feed (TMRF) and total mixed ration (TMR) by rumen in vitro fermentation and their effects on the growth performance and blood characteristics of Hanwoo steers. In experiment 1, three Hanwoo steers (600[+ or -]47 kg), ...
Jiang, Yuanyuan - - 2012
The effects of sheep urine and dung patches on methane (CH4) and carbon dioxide (C[O.sub.2]) fluxes were investigated during the summer-autumn in 2010, to evaluate their contribution to climate change in a desert grassland in Inner Mongolia, China. Results indicate that the cumulative C[H.sub.4] emissions for dung patches, urine patches ...
Kang, Ok-Deuk - - 2012
The changes in physiologic parameters by swim exercise duration were examined in five female well-trained Jeju crossbred riding horses that had riding experience of more than three years without swim training experience. The horses were performed with swim exercise for 10 min (60.0 m/min) once a day for 14 days. ...
Han, Hyungchul - - 2012
Liver and pulmonary artery tissue from 5 Angus cross bred steers, 6 goats, and 6 pigs were collected at a commercial abattoir to examine the relationship of pulmonary artery copper (Cu) concentrations and genes involved in copper homeostasis. Liver and pulmonary artery samples were collected at the time of harvest ...
Farshad, A. - - 2012
This experiment was conducted to study variations of serum testosterone and seminal characteristics of Markhoz male goats. Blood samples were obtained via jugular vein, and semen was collected by using an artificial vagina from 14 fertile male goats (23 years of age), at 15-day intervals starting on 15 July and ...
Do, C.H. - - 2012
To investigate the influence of the prolactin receptor 3 (PRLR3) gene and the retinol-binding protein 4 (RBP4) gene on the production traits of swine, genotyping was performed on 156 and 141 Berkshire pigs, respectively, that were carefully selected for economic traits. The frequencies of allele A in the PRLR3 locus ...
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