cement plant jstor

Othonna ciliata in Global Plants on JSTOR

JSTOR is part of ITHAKA, a not-for-profit organization helping the academic community use digital technologies to preserve the scholarly record and to advance research and teaching in sustainable ways.

Plastics recycling: challenges and opportunities

2021/7/27Plastics are inexpensive, lightweight and durable materials, which can readily be moulded into a variety of products that find use in a wide range of applications. As a consequence, the production of plastics has increased markedly over the last 60 years. However, current levels of their usage and

The impact of the 2021 Tohoku earthquake tsunami disaster and

2021/8/1The significant feature of the 2021 tsunami was the wide extent of inundation zone. In fact, on the Sendai plain, the tsunami inundated more than 5 km inland to have caused total devastation and the tsunami inundation on the Sendai plain remained for several days because of the wide-area subsidence (Imakiire and Koarai, 2021).

ACME Coke Plant, Chicago, IL

ACME Coke Plant. "Here a pall of heavy smoke darkens the sky by day, while by night the lurid glare from the furnaces tells of unceasing toil". so reads South Chicago at the Gates of the Steel Mills, a study of housing conditions near the steel mills lining Illinois' Calumet River in 1911. Condemned Houses of Black Families, April 1941

The value of concrete manipulatives in maths

2021/11/23The Concrete, Pictorial and Abstract approach has its foundations in Bruner's modes of representation. Previous understanding was that children move from Concrete to Pictorial and then to Abstract. However, recent thinking is that the three should be interlinked and presented together so that the child can see connections between the abstract and the concrete or pictorial.

FitzSimons, Vivian Frederick Maynard (1901

His first major book, The Lizards of South Africa, earned him a DSc from Witwatersrand University in 1942 and cemented his reputation as a leading authority on South African reptiles. After the Second World War, he was promoted to Director of the museum, a position he held until his retirement in 1966, and began his study of South African snakes, which would occupy the

Free Databases and Collections

Free Databases and Collections. General. Art, History, and Culture. Science. This list includes databases, collections and search tools, selected by Smithsonian Libraries staff, that are freely available via the Internet. Smithsonian staff and other affiliated persons can access the Libraries' subscription databases, e-books, and e-journals via

HIGH

In conventional concrete, the percentage of sand in the aggregate is 30% to 40%. However, the foamed cement of this process/invention is preferably mixed with an aggregate having a higher ratio of sand. Preferably in the range of 40% to 50%. This reduces or

(PDF) The use of concrete material in teaching and learning mathematics

The measures used are based on the value of percentage and mean. The result shows that mathematics teachers have been using concrete materials as the main ingredient in starting a new methodology

Wind energy and the environment

2021/12/9Wind is an emissions-free source of energy. Wind is a renewable energy source. Overall, using wind to produce energy has fewer effects on the environment than many other energy sources. Wind turbines do not release emissions that can pollute the air or water (with rare exceptions), and they do not require water for cooling.

life

Life comprises individuals, living beings, assignable to groups (taxa). Each individual is composed of one or more minimal living units, called cells, and is capable of transformation of carbon -based and other compounds (metabolism), growth, and participation in reproductive acts. Life-forms present on Earth today have evolved from ancient

Extraterrestrial construction materials

2021/8/1Metal foams have been applied in prosthetics, automotive and energy application, and while their application in civil construction is relatively immature, the potential of using metal foams in extraterrestrial construction seems promising, especially as exterior walls and shielding domes. 3.5. Composites.

1632 questions with answers in PLANT EXTRACTS

2021/11/29Now I want to dissolve the extracts in a suitable solvent to test them against whiteflies. (a) Will my test insect affect if I dissolve the extract in

PNAS

Plant Biology Population Biology Psychological and Cognitive Sciences Sustainability Science Systems Biology PNAS commits to immediately and freely sharing research data and findings relevant to the novel coronavirus (COVID-19) outbreak. See the free and

(NSSD) . . . Kuke . . NoteExpress . NoteFirst () . - . —— .

The Yellow Wall

The color is repellant, almost revolt ing ; a smouldering unclean yellow, strangely faded by the slow-turning sun light. It is a dull yet lurid orange in some places, a sickly sulphur tint in others. No wonder the children hated it! I should hate it myself if

The University of Chicago Press: Journals

Read a collection of free research in policing, civil rights, and racial justice. The University of Chicago Press stands in solidarity with protests against racial injustice. Visit our virtual exhibits for subscription discounts, free articles, and journal news:

Hypoxis setosa in Global Plants on JSTOR

Information. corm oblong, 1–1 1/2 in. diam., crowned with a dense ring of strong bristles 1 1/2–2 in. long; leaves 6–8, lanceolate, rigidly coriaceous, strongly ribbed, 4–6 in. long, 1/2–1 in. broad at the middle, quite glabrous on both surfaces, obscurely bristly on the margin; peduncle shorter than the leaves, hairy upwards; flowers

Featured Books – Biodiversity Heritage Library

2021/9/23Plant species worldwide face an increasing barrage of threats to their survival. The deliberate collection of rare plants poses a far greater threat to wild plant species. In Wild Plants in Trade (1992), the reasons and effects of wild collection on plants for cultivation and

THE SKILL CONTENT OF RECENT TECHNOLOGICAL CHANGE: AN

Hitt [2021] provide evidence on " rm and plant level shifts. Katz and Autor [1999] summarize this literature. Card and DiNardo [2021] offer a critique. 2021 by the President and Fellows of Harvard College and the Massachusetts Institute of Technology. 1279

Hypoxis setosa in Global Plants on JSTOR

corm oblong, 1–1 1/2 in. diam., crowned with a dense ring of strong bristles 1 1/2–2 in. long; leaves 6–8, lanceolate, rigidly coriaceous, strongly ribbed, 4–6 in. long, 1/2–1 in. broad at the middle, quite glabrous on both surfaces, obscurely bristly on the margin

Introducing the Plant Humanities Lab

2021/4/2We are thrilled to announce the release of Plant Humanities Lab, a new resource aiming to explore the cultural histories of plants and their influence on human societies. (Much of this blog post was originally published as a Twitter thread.)Dumbarton Oaks and JSTOR Labs are thrilled to announce the release of Plant Humanities Lab (lab.plant-humanities), a new resource aiming to explore the

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Journal of Ecology

Joseph Moughan, Kevin J. McGinn, Laura Jones, Tim C. G. Rich, Elliot Waters, Natasha de Vere, Version of Record Online: 22 November 2021. Abstract. Salvia pratensis L. (Meadow Clary) is rare in the British Isles, confined largely to fragmented unimproved pasture, hay meadows and grassy verges over calcareous soils.

Databases A

plant pathology, forestry, aquaculture and fisheries, farming and farming systems, rural and community development, agricultural economics, extension and education, food and human nutrition, food science, agricultural engineering, and earth and State

ResearchGate

Connect with your scientific community. Share your research, collaborate with your peers, and get the support you need to advance your career.

Sigma Xi, The Scientific Research Society

JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms .

Journal of the History of Medicine and Allied Sciences

The editor of the Journal of the History of Medicine and Allied Sciences is pleased to announce the winner of the annual Stanley Jackson award for the best paper in the journal appearing in the preceding three years. The prize committee chose: Karissa Haugeberg, Nursing and Hospital Abortions in the United States, 1967–1973 (73:4, October

Biblioteca Digital

Prol. Canal de Miramontes 3855 Ex Hacienda San Juan de Dios, Tlalpan, C.P. 14387 Ciudad de Mxico, Mxico Contacto: Lic. Julio Ibarra Jefe del Departamento de Biblioteca Digital Email: jibarramcorreo.uam.mx

Databases

JSTOR journals --- COVID-19 free access This link opens in a new window Trial This opens a pop-up window to share the URL for this database (expires on 2021-06-30) JSTOR: 19th Century British Pamphlets --- COVID-19 free access This link opens in a new