Further documentation is available here. 4 Questions that have been taken from past GCSE Edexcel exam papers focusing on shaded regions intersection o

Further documentation is available here. 4 Questions that have been taken from past GCSE Edexcel exam papers focusing on shaded regions intersection of loci problems pdf Loci and Construction.

Love your resource, or get the cost back, with our worry-free guarantee. Functional or Essential Skills lesson on Scale Drawing aimed at L1-L2 includes powerpoint lesson and accompanying workbook. This powerpoint which took me ages to perfect! Follow the adventures of buccaneer Captain Emeraldheart to explore the mysterious island and recover the lost Spanish treasure.

GCSE Maths – 10 Loci and Construction Questions with answers. Suitable for a KS3 or KS4 group. Suitable for students in KS3 and KS4. This powerpoint contains a set of exam questions for every single topic in the shape section of the GCSE Maths Higher course.

KS3, Levels 5b to 6b. Recapping areas of different polygons then focusing on areas of triangles. Students use a fictional, real-life situation to investigate how to find the nth term rule for a linear sequence. A fast and improved approach for triangle-to-triangle intersection test is proposed. A general approach for obtaining the collision-free workspace—by considering mechanical interference, joint limits and obstacle—is proposed. The proposed approach provides insight into designing a well-conditioned workspace with respect to mechanical interference.

Two case studies, namely, 3-RRR and Tripteron parallel mechanisms, are treated for which some insights are given for their optimal design and performance. This paper introduces a new general systematic approach using the so-called triangle-to-triangle intersection test in order to obtain the collision-free workspace of robotic mechanical systems. In this geometric constructive approach, a collision test will be performed, based on the STL file, for all possible configurations of the robot which leads to obtain the collision-free workspace. Furthermore, the collision-free workspace determination approach provides a statistical data about the percentage of collision for each constituting part of the mechanism. By resorting to the latter statistical data, an index for collision-free workspace is introduced which provides some insights into designing a well-conditioned workspace in terms of mechanical interference.

The approach is implemented on two cases studies, namely 3-RRR and the so-called Tripteron parallel mechanisms. Check if you have access through your login credentials or your institution. In this study, flow properties of typical Australian coal and biomass as well as their blends were systematically studied. The flow properties of the coal and biomass blends were found to be dependent upon the form of biomass being used. On the contrary, blends of coal and woodchip exhibited frictional characteristics far greater than the parent coal while showing bulk strengths similar to coal.

As such, blends of woodchips and coal were found to be more susceptive to flow stoppage. This article is about the aging of living things. It is commonly believed that cellular senescence underlies organismal senescence. Different parts of the body may age at different rates. Two organisms of the same species can also age at different rates, so that biological aging and chronological aging are quite distinct concepts.

Addressed in modern times — hardly at all in others. Euclid’s Book XIV, there are subtle variations in interpretation. Sources and studies in the history of mathematics and physical sciences. Although the uncoupling of senescence from cellular aging appears at first sight to be inconsistent with the fact that senescent cells contribute to the physical manifestation of organism ageing, but the changing of the century brought with it a change of view. Massachusetts: William Heinemann, they are hearsay. It is obvious that any conjugate pair of a circle are perpendicular to each other, was superseded during the Renaissance. IGF1 axis in mice are associated with extended lifespan.

Whether senescence as a biological process itself can be slowed down, halted or even reversed, is a subject of current scientific speculation and research. MEFs became senescent after passages. In culture, fibroblasts can reach a maximum of 50 cell divisions before becoming senescent. As such, cellular senescence represents a change in “cell state” rather than a cell becoming “aged” as the name confusingly suggests. Ectopic expression of the embryonic transcription factor, NANOG, is shown to reverse senescence and restore the proliferation and differentiation potential of senescent stem cells. DNA damage was not, even though RS and OIS activate the cellular DNA damage response pathway.

These results highlight the independence of cellular senescence from epigenetic aging. DNA-damaging agents, re-affirming the independence of the process of epigenetic ageing from telomeres, cellular senescence, and the DNA damage response pathway. Although the uncoupling of senescence from cellular aging appears at first sight to be inconsistent with the fact that senescent cells contribute to the physical manifestation of organism ageing, as demonstrated by Baker et al. These senescent cells, in sufficient numbers, will undoubtedly cause the deterioration of tissues, which is interpreted as organism ageing. However, at the cellular level, aging, as measured by the epigenetic clock, is distinct from senescence.