A decades-old mystery of why a naturally-occurring organic crystal fluoresces blue under ultra-violet light, yet when grown under laboratory conditions fluoresces with an intense green colour, has been solved by scientists …

Also on display are two tubes of Mummy Brown, made from the rendered gunk of the Egyptian dead, thought to be rich in the bituminous asphalt used in embalming and as protection against fungal decay. By the sixteenth century, Mummy was believed to cure illnesses as various as gastric pain and epileptic fits, and the flourishing trade in Mummy led to countless tombs being sacked and broken-up mummies sold to suppliers. Druggists and colormen—as preparers and venders of artists’ materials were known—often shared the same inventory and the same occult reputation for possessing exotic secrets. Bitumen, a cover-all term, was prized for its tawny glow, but the popularity of the pigment had much to do with the nineteenth-century taste for the Oriental macabre. History paintings of the kind fashionable in the eighteen-thirties and forties were gravy-brown, as if conferring period authenticity. There was cuttlefish sepia and burnt umber, but if Turner needed a loamy richness he reached for Mummy.

In a recent publication in Science, researchers at the University of Paderborn and the Fritz Haber Institute Berlin demonstrated their ability to observe electrons’ movements during a chemical reaction. Researchers have long …

5. Halle Berry was initially meant to star in the film. Before Netflix came along, the film was in development by Universal Pictures in 2003. Colombian director Patricia Cardoso was at the helm, and Berry was set to star as the protagonist Violet. However, in 2017, Netflix took the film on and Al Mansour directed a re-written script with Lathan in the lead. Al Mansour said it was ‘such a joy’ to direct Lathan, and called the seasoned actress ‘just exceptional’.

To further confirm the TDR results, we investigated the electronic structure of MGT using density functional theory (DFT) calculation by examining a new electronic state, which was constructed in the interface. As illustrated in fig. S4F, we calculated both CuPc and MGT as a system to obtain the CT process, instead of isolated molecules. We investigated the coupling of CuPc and MGT as well as the consequent CT at equilibrium using DFT calculations. The DFT results (Fig. 4I) showed that much more obvious electron transfer occurred from MGT to CuPc than from MG to CuPc, which gave theoretical evidence for the efficient CT between MGT and CuPc molecules. Moreover, to further elucidate the CT process, we determined the Fermi level, the conductive band (CB) and valence band (VB) of MGT, and the highest occupied molecular orbital (HOMO) and the lowest unoccupied molecular orbital (LUMO) levels of different organic molecules using DFT calculation, which are shown in Fig. 4J. The Fermi level of GO was −4.6 eV from the vacuum level, while the HOMO and the LUMO levels of organic molecules were −7.9 and −3.4 eV for CC, −6.8 and −4.7 eV for PTCDA, −6.0 and −4.1 eV for CV, and −5.2 and −3.07 eV for CuPc, respectively. In general, Raman enhancement effect is derived from a robust CT between the substrate and the molecules (6). In the CuPc-MG system, the energy barrier from the Fermi level of GO to LUMO of CuPc is 1.53 eV. With the introduction of TiO2 to the MG system, charge redistribution occurs around the interface between TiO2 and molecules, which leads to the alignment of the energy levels between TiO2 and GO. In this case, the narrow energy barrier is 0.9 eV from the Fermi level of GO to CB of TiO2 and 0.83 eV from CB of TiO2 to LUMO of CuPc, respectively, which are much smaller than that in the MG system. Thus, compared with the CuPc-MG system, CT occurs much easier, and more obvious CT selective enhancement was observed in the SERS spectra of the MGT-CuPc system. Different from CuPc, the LUMO levels of CV (−4.10 eV) and PTCDA (−4.70 eV) were lower than CB of TiO2 (−3.70 eV; Fig. 4J), which results in a rare contribution to CT between the molecules and MGT with the introduction of TiO2, preventing a further enhancement of Raman intensity. The results of theoretical calculation also showed that there was an efficient CT between the molecules and the substrate, leading to SERS enhancement with a high EF value, which agrees well with that proposed by TDR measurement above.

Everyone knows that shiraz makes the Hunter’s greatest red wines; the Brokenwood Graveyard’s, the Mount Pleasant Old Hill’s, the Tyrrell’s 4 Acres and Vat 9’s. Shiraz is the red wine hero of the Hunter. Not cabernet.

As his bio states, he "is also known for his photography which is included in the permanent collections of the Victoria and Albert Museum, London; the Bibliotheque National, Paris; the Musee’ d’art et d’histoire, Fribourg, Switzerland; the Addison Gallery of American Art, Andover, Massachusetts; and the Museum of Art, Rhode Island School of Design among others."

In all cases, your first step should be to pretreat the stain as quickly as possible. This means wiping up any excess spillage and then putting down something that will start to draw out the stain. For example, you could dab—never rub—at an untreated stain with a paper towel or other absorbent item, allowing capillary action to draw up the liquid. Then dampen the mark with cold water, which generally helps keep stains from setting.

Funeral services for Mr. Head were held on Tuesday, April 24, 2018 at 2 p.m. in the chapel of the Freeman Harris Funeral Home with Rev. Trey Jones and Rev. Billy Thomas officiating. A eulogy was given by Mr. Zac Head.

The HCC38 cell detection limit was calculated to be ~3 cells at 3σ. The overall intensity of Raman peaks at 1530 cm−e was determined by both the number of captured HCC38 cells and the number of PD-L1 on each cell. To quantify the PD-L1 expressed on cell surfaces, we used a binding competition method (36) to partially block the PD-L1 binding sites on the nanoprobe surfaces. Because the PD-L1–blocked Abs on nanoprobe surfaces could not conjugate to PD-L1 on cell surfaces, the peak intensities obtained from cytosensors incubated with PD-L1–blocked nanoprobes were lower than those of the cytosensors incubated with nonblocked nanoprobes. The decrease in intensity (ΔI) versus the amount of PD-L1 used to block the PD-L1 Abs on nanoprobe surfaces (m) showed a linear relationship ranging 0.1 to 1.0 fmol (R = 0.999, n = 5; Fig. 5D)

Over the years, more colors were permitted—the number grew to 15 by 1931. The term “coal tar colors” persisted, even as the use of coal tar faded. By the 1950s, petroleum was replacing coal tar as the source of vibrant food coloring.

Abstract: A through bolted connection hardware includes a bolt that has a partially threaded shaft and a head. At least one nut connector defines a shaft hole and a coaxial head hole. The shaft hole is sized to receive the shaft of the bolt and not to allow the head to fit through the shaft hole, and the head hole is sized to receive the head. The hardware also includes a tube that has an axially extending threaded bore that is configured to matingly receive the shaft at a first end of the threaded bore.