نتایج جستجو برای: fish scales
تعداد نتایج: 218451 فیلتر نتایج به سال:
There is also a growing consensus that evidence of teachers’ contributions to student learning should be a component of teacher evaluation systems, along with evidence about the quality of teachers’ practice. “Value Added Models” (VAMs) for looking at gains in student test scores from one year to the next are promoted as tools to accomplish this goal. Policy makers can benefit from research abo...
Dogs with cutaneous wound were selected and randomly divided into two groups, to study the efficacy of fish scales extracted collagen biocasings on cutaneous wound healing. The wounds in both groups of dogs were protected with sterile external bandage after cleaning with normal saline to prevent infection. The efficacy of biocasings on wound healing was studied based on gross, physiological, he...
1. Introduction A small-sized grass carp (43 cm long) was caught in Lake Whangape, lower Waikato River basin, in May 1997. This fish was too small to be a recapture from the escapement from trial sites in 1984 (fish which are now mostly longer than 70 cm), so could have been either a recent escapee, or the result of natural reproduction in the river. Either way, the finding of this fish indicat...
Fish faced with stressful stimuli launch an endocrine stress response through activation of the hypothalamic-pituitary-interrenal (HPI-) axis to release cortisol into the blood. Scientifically validated biomarkers to capture systemic cortisol exposure over longer periods of time are of utmost importance to assess chronic stress in governmental, wildlife, aquaculture and scientific settings. Her...
Scale-eating cichlid fish, Perissodus microlepis, from Lake Tanganyika display handed (lateralized) foraging behavior, where an asymmetric 'left' mouth morph preferentially feeds on the scales of the right side of its victim fish and a 'right' morph bites the scales of the left side. This species has therefore become a textbook example of the astonishing degree of ecological specialization and ...
In 1999, Medicare implemented a resource-based relative value unit (RVU) system for physician practice expense payments, and increased the number of services for which practice expense payments differ by site. Using 1998-2004 data, we examined RVU growth and decomposed that growth into resource-based RVUs, site of service, and service quantity and mix. We found that the number services with sit...
Increasing development of nanotechnology and the production of nanostructured materials have led to many nanoparticles enter into the environment. Iron oxide nanoparticles are one of the most widely used nanomaterial that their widespread application has been accompanied with concern. The purpose of this study was to evaluate the iron bioaccumulation and histopathology in the muscle, skin and s...
OBJECTIVE To identify attitudinal determinants of fish consumption in Spain and Poland, and to discuss the potential impact of local healthy eating policies in the observed reported frequency of fish consumption. DESIGN Repeated survey analysis , multivariate linear regression analysis. Data collected through a questionnaire that included socio-demographics, self-reported anthropometrics, as ...
the normal and lateral line cycloid scales of a cyprinid fish; alburnoides bipunctatus (blotch, 1782) have been subjected to sem to study their detailed structure. it shows the general architectural pattern of a cycloid cyprinid scale. the focus of the scale is clear and sharp located in the anterior field. circuli are observed in all fields. primary radii which originate from very near the foc...
Abstract Extrapolating patterns from individuals to populations informs climate vulnerability models, yet biological responses warming are uncertain at both levels. Here we contrast data on the heating tolerances of fishes laboratory experiments with abundance wild populations. We find that in terms individual physiologies lab and decline increasing temperature same rate. However, a given accli...
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