Zeolite-supported single-atom catalysts (SACs) have emerged as a novel class of cheap and tuneable that can exhibit high activity, selectivity stability. In this work, we conduct an extensive screening by means density functional theory calculations to determine the usefulness 3d, 4d 5d transition metal (TM) SACs-supported in MFI-type Silicalite-1 zeolite for CO2 conversion. Two reaction mechan...

Abstract Single‐atom catalysts (SACs) often show exceptionally high performance per metal loading. Besides benefiting from a better atom utilisation, the metal‐support interaction is more pronounced in SACs compared to traditional nanoparticle catalysts. Thus, using photochemical conversions of great advantage where rapid reactions depend on synergistic active site with photoactive support. Her...

This paper reports on the insights gained during 5th Japan Association for Self-Access Learning (JASAL) conference students and similarities shared by self-access centers (SACs) worldwide. A group of from 13 universities their experiences, ideas, current issues faced SACs with aim of, collaboratively, finding a solution to make them available more language learners. The outcome this exchange gi...

ZmEA1 (Zea mays egg apparatus 1) is expressed only in the egg and synergid cells. Embryo sacs with presumed reduced expression of ZmEA1 fail to attract pollen tubes. Together with data from Arabidopsis mutants and from elegant laser ablation experiments in Torenia fournieri, these results indicate that embryo sacs send signals to the incoming pollen tubes. We need to decipher how such signals a...

A solar air collector (SAC) is a main device of solar-thermal system, which can absorb radiation and transfer the absorbed thermal energy to air. This paper presents systematic review three basic types SAC, namely, flat-plate SAC (FPSAC), evacuated tube (EVTSAC), concentrated SAC. High efficiency, low heat loss simple structure have always been goals SACs development research. Enhancement metho...

Biosensors featuring single molecule detection present huge opportunities as well challenges in food safety inspection, disease diagnosis, and environmental monitoring. Single-molecule is largely lacking of high enough activity, precision selectivity, understanding the exact operating mechanism. Single-atom catalysts (SACs), especially those metals-nitrogen-carbon that mimic natural metalloenzy...

We simulate species-area curves (SACs) using a spatially explicit neutral model. These display three distinct phases with the central phase being well approximated by a "power law" where species richness (S) is related to area (A) by S = cA(z). If seeds are normally distributed in space about their parent, the power law phase of the SAC is unrealistically narrow, and implausibly large speciatio...

Purified preparations of Coxiella burnetii were examined for enzymes of the glycolytic pathway. Glucose-phosphate isomerase, fructose-1,6-diphosphatase, aldolase, glyceraldehyde-3-phosphate dehydrogenase, and pyruvate kinase were shown to be present in C. burnetii extracts. Heat-killed C. burnetii purified with normal yolk sacs demonstrated no activity after disruption. Aldolase was shown to be...

Introduction On a public communication channel there is a risk that an intruder can deliberately observe and even cause a disturbance in the communication. An authentication code provides a method for insuring the integrity of the information to be sent through this channel. These codes, first introduced by Gilbert, MacWilliams and Sloane, have since received attention by several authors and ma...

Gum Arabic (GA) is known for its proabsorbent activity in normal intestine as well as in animal models of diarrhea. The aim of the study was to find the effect of GA on intestinal transport of water and possible route of absorption in frog everted gut sacs. D-Mannitol was used as a marker of paracellular transport to find the route of absorption. Everted gut sacs (n = 4,5) were placed in Ringer...