نتایج جستجو برای: color change
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Author Affiliations: Full Text Word Count: ISSN: Accession Number: Database: Record: 1 BOUNDARIES FOR A HEALTHY PLANET. Foley, Jonathan Scientific American; Apr2010, Vol. 302 Issue 4, p54-57, 4p Article *ENVIRONMENTAL degradation -Prevention *NATURE -Effect of human beings on *OCEAN acidification *CLIMATIC changes -Environmental aspects *WEALTH *ENVIRONMENTAL aspects *GREEN Revolution *INDUSTRI...
background: there have been numerous researches on ozone application in dentistry; yet the data regarding its whitening effect is very limited. the present study compares the bleaching effect of ozone with offi ce bleaching. materials and methods: in this experimental study, 15 maxillary premolar teeth were selected and sectioned mesio-distally and bucco-lingually. the sections were then placed...
mycoplasmosis is one of the most important diseases in the poultry industry. its causative agent, mycoplasma has various species, which two of them, mycoplasma gallisepticum (mg) and mycoplasma synoviae (ms) are the most important species. due to the enormous losses in the production farms of industrial poultry, achieving a rapid, accurate and definite diagnosis of mycoplasma is of great import...
Martin Stevens is Associate Professor of Sensory and Evolutionary Ecology at the University of Exeter. He did his PhD at Bristol University on bird vision and animal camouflage, and then undertook several fellowships at Cambridge University before moving to Exeter in 2013. His work has focussed on animal coloration, vision, and methods to quantify visual signals, especially image analyses. This...
Harlequin phenomenon is a rare event that consists of sudden and transient episodes of demarcated erythema forming on the dependent half of the body of newborns, with pallor of the uppermost half. The infant appears as if a line was drawn on the midline dividing two hemibodies. It occurs preferentially in lateral position. It is most common in term newborns, rare cases were reported in preterm....
Recently widely circulated publications, the World Development Report 2009 of the World Bank (WB) and Human Development Report 2007/2008 of the United Nations Development Programmes (UNDP), have strongly emphasized the geographical space of the world. The World Development Report 2009 has a sub-title ‘reshaping the economic geography’, whereas the Human Development Report has dealt on ‘fighting...
1 Governments dispose of two instruments – resources and activities to increase their impact in international negotiations. Apart from exogenous negotiation resources such as economic weight, states try to increase their endogenous resources by staffing their diplomatic delegations, by including various representatives of NGOs, research or the business community or by choosing experienced deleg...
In terms of policy, the Ministry of Construction has prepared and issued a Guidelines for Green Ecological Residential Area Construction Elements and Technical, China Ecological Residential Technology Evaluation Manual, Environmental Impact Evaluation Law of the Peoples Republic of China and other documents; in practice, economically developed areas combined with their own characteristics have...
During the "Green Sahara" period (11,000 to 5000 years before the present), the Sahara desert received high amounts of rainfall, supporting diverse vegetation, permanent lakes, and human populations. Our knowledge of rainfall rates and the spatiotemporal extent of wet conditions has suffered from a lack of continuous sedimentary records. We present a quantitative reconstruction of western Sahar...
In event-related brain potential (ERP) studies of brain activity using a visual S1-S2 matching task, change stimuli elicit a posterior positive component with a latency of 100-200 ms. To elucidate the hierarchical organization of the processing of a visual stimulus change based on multiple stimulus features, ERPs were recorded in 12 participants performing an S1-S2 matching task with stimuli de...
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