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From:Canadian Journal of Chemistry (Vol. 87, Issue 10) Peer-ReviewedDensity functional theory and the polarized continuum model are used to derive the electronic structures of some open-shell, bis(bipyridine)ruthenium complexes bound to noninnocent quinonoid or thiolosulfinato ligands...
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From:Plastics Engineering (Vol. 63, Issue 11) Peer-ReviewedHeadquartered in northeast Ohio, USA, PolyOne has introduced a custom patent-pending formulation of its Stat-Tech electrically conductive compounds used in conductive pipette tips. The tips are used with robotic...
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From:The Science Teacher (Vol. 83, Issue 2) Peer-ReviewedStudents best learn science through a combination of science inquiry and language learning (Stoddart et al. 2002). This article presents a series of chemistry lessons on the naming of compounds. The weeklong unit...
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From:Review of Optometry (Vol. 143, Issue 4) Peer-ReviewedNothing makes your heart race faster than a patient who presents with the words, "Doc, I splashed something in my eyes!" Depending on the substance, a chemical ocular injury can represent a sight-threatening emergency....
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From:Indian Journal of Anaesthesia (Vol. 61, Issue 6) Peer-ReviewedByline: Priyanka. Karnik, Nandini. Dave, Gita. Nataraj, Rajarshi. Gupta, Madhu. Garasia Background and Aims: The laryngoscope is a potential source of cross-infection as it involves contact with the mucous membrane,...
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From:Nature Biotechnology (Vol. 38, Issue 9) Peer-Reviewed
Extending the small-molecule similarity principle to all levels of biology with the Chemical Checker
Small molecules are usually compared by their chemical structure, but there is no unified analytic framework for representing and comparing their biological activity. We present the Chemical Checker (CC), which provides... -
From:Construction and Building Materials (Vol. 208) Peer-ReviewedABSTRACT Calcium leaching is an important durability problem for cement asphalt (CA) mortar used in ballastless slab track. In this paper, calcium leaching in CA mortar was accelerated by immersing in 6 mol/L...
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From:Construction and Building Materials (Vol. 141) Peer-ReviewedABSTRACT The present study investigates the working principle upon the accelerating-retarding effect of triethanolamine dosage on the initial setting time of hydrated cement. We have conducted atomistic simulation to...
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From:LC-GC North America (Vol. 29, Issue 6) Peer-ReviewedOctadecyl bonded silica gel (C18), available from many manufacturers, is one of the most widely used phases in solid-phase extraction (SPE) applications. But all C18 is not equivalent. Variations can include particle...
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From:Nature (Vol. 458, Issue 7236) Peer-ReviewedThe tetravalency of carbon and its ability to form covalent bonds with itself and other elements enables large organic molecules with complex structures, functions and dynamics to be constructed. The varied electronic...
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From:Journal of the Chemical Society of Pakistan (Vol. 40, Issue 1) Peer-ReviewedByline: Naeem Abbas, Imtiaz Khan, Sadaf Batool, Majid Ali, Umar Farooq, Ajmal Khan, Shahid Hameed, Jonathan M. White and Aliya Ibrar Summary: 2-Nitrobenzohydrazide was efficiently synthesized in two steps by the...
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From:Proceedings of the North Dakota Academy of Science (Vol. 69) Peer-ReviewedChlorite dismutases (Cld) are bacterial and archaeal enzymes that catalyze the decomposition of chlorite (Cl[O.sub.2.sup.-)] into chloride ([Cl.sup.-]) and molecular oxygen ([O.sub.2]) (1). This enzymatic decomposition...
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From:Chemical Engineering (Vol. 116, Issue 4) Peer-ReviewedCerealus Holdings, LLC (Waterville, Maine; www.cerealus. com) has developed a nontoxic, bio-based chemical replacement for fluorinated compounds, such as perfluorooctcanoic acid (PFOA), used in food packaging and...
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From:Environmental Health Perspectives (Vol. 117, Issue 8) Peer-ReviewedWhen the holding pond at the Tennessee Valley Authority's (TVA) Kingston coal-burning power plant broke on the morning of 22 December 2008, it released more than 5.4 million [yd.sup.3]--some 50 years' worth of...
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From:Canadian Journal of Chemistry (Vol. 96, Issue 12) Peer-ReviewedA novel fluorescent rhodamine-based probe L for selective responding to Cl[O.sup.-] has been synthesized and characterized. The spectroscopy showed that probe L can detect Cl[O.sup.-] in aqueous solution without...
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From:Science (Vol. 299, Issue 5605) Peer-ReviewedDefects such as oxygen vacancies play a crucial role in the surface properties of transition metal oxides. By means of time-resolved, high-resolution scanning tunneling microscopy, we unraveled an adsorbate-mediated...
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From:Science (Vol. 298, Issue 5598) Peer-ReviewedAlthough synthetically challenging to construct, high-diversity libraries of chemical compounds are becoming an important resource for large-scale drug screening trials. One problem is that current synthesis methods...
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From:Nature (Vol. 496, Issue 7444) Peer-ReviewedCompounds that inhibit mutated metabolic enzymes may shift cancer cells into a more benign state. Mutations in two metabolic genes--IDH1 and IDH2--drive the growth of some tumours. Katharine Yen at Agios...
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From:Chemical Engineering (Vol. 121, Issue 4) Peer-ReviewedUsing gravity to initiate flow in the discharge of solid materials from bins and hoppers is the simplest, and often best, approach to solving solids-handling challenges. However, not all solid materials flow well by...
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From:LC-GC North America (Vol. 29, Issue 6) Peer-ReviewedHydrophilic interaction chromatography (HILIC) has become a popularly used separation mode for carbohydrate HPLC method. There are wide variations in HILIC stationary phase. The base material can be silica or polymer,...