OBJECTIVES Data on the prevalence of tuberculosis (TB) in healthcare workers (HCW) in Oman and the Arabian Gulf is scarce. The aim of this study was to estimate the prevalence of latent tuberculosis (LTB) among HCW exposed to active TB in one of the tertiary care hospitals in Muscat. METHODS Exposed HCW were screened for LTB from January to June 2012 using skin tuberculin and serum interferon...

Self-Healing Devices An innovative concept of a self-healed electrode-channel system employing ultrathin metallic copper monosulfide (CuS) and monolayered molybdenum disulfide (MoS2) is demonstrated by John Hong, SeungNam Cha, co-workers in article number 2102091 for the design defect-curable transistors phototransistors. Excess sulfur adatoms from CuS electrode spontaneously heal defect sites ...

Argon Plasma Treatment In article 2200397, Teresa Gatti, Francesco Lamberti, and co-workers show how a cuprous oxide surface activated by Ar plasma treatment can promote the hydrogen evolution under light in typical photelectrochemical experiment: is immersed water (sketch modules bottom) that transformed hydrogen. The effect of to keep unflawed, thus avoiding rapid reduction metallic copper as...

Rechargeable Magnesium Batteries In article number 2201608, Jianxin Zou, Richard M. Laine, and co-workers show that co-doped FeS2 cathodes coupled with the inexpensive phenolate-based magnesium complex electrolyte copper collectors for rechargeable batteries, exhibit considerable electrochemi cal performance. Characterization results indicate capacity is mainly contributed to reaction of Mg Cu-...

Quantum Dots In article number 2106387, Yang Yu, Efstratios Skafidas, and co-workers present transparent fully solution processed inorganic quantum dots LED (QLED). To improve upon the structures hole injection efficiency, a low-temperature sol-gel derived copper doped NiO interlayer is introduced. The QLED analytical models simulation results are in good concordance with experimental results, ...

The DNA-templated bioorthogonal synthesis of macrocyclic gene modulators is illustrated in the cover picture accompanying Research Article (e202215245) by Jyotirmayee Dash and co-workers. DNA secondary structures present telomere oncogene promoter proximally orient bifunctional alkyne azide fragments, enabling bond formation copper-free azide–alkyne cycloaddition live cells. high-affinity bindi...

Structural Current Collectors In article number 2202321, Jae Young Seok, Sanha Kim, and co-workers introduce a structurally hierarchical copper current collector for lithium metal battery anodes. The nanorods inside the micro-cavities concentrate local electrical field onto inner surfaces of microstructures, enabling inward nucleation lithium. subterraneously grown tends to agglomerate, resulti...

The combination of yellow-emissive CsCu2I3 and blue-emissive Cs3Cu2I5 for environmentally friendly white LEDs is demonstrated by Zhifeng Shi, Lijun Zhang, Chongxin Shan, co-workers in article number 2001367. Both copper halides are highly stable against heat, ultraviolet light, oxygen/moisture degradation, as demonstrated, they use this strategy to overcome photon self-absorption, color instabi...

Ångström-thin hexagonal boron nitride (hBN) is a highly promising barrier/liner dielectric material for passivating electrical interconnects in ultra-scaled integrated circuits (ICs). In article number 2100002, Michael Cai Wang and co-workers present novel approach to mitigating electromigration nanoscale copper interconnects. Significant improvements the breakdown current density operating lif...

Among social insects, individuals that grow or reproduce have different nutritional requirements than those that do not grow. Ants and termites have very different colony structure, and they should reveal differences in nutrient ßow. Here, we show that the micronutrients calcium (Ca), copper (Cu), iron (Fe), potassium (K), magnesium (Mg), manganese (Mn), sodium (Na), and zinc (Zn) levels are di...