The sun is the primary energy source of our planet and potentially can supply all societies with more than just their basic energy needs. Demand of electric energy can be satisfied with photovoltaics, however the global demand for fuels is even higher. The direct way to produce the solar fuel hydrogen is by water splitting in photoelectrochemical (PEC) cells, an artificial mimic of photosynthes...

Polyelectrolyte complex (PEC) nanoparticles for delivering model protein drug ovalbumin were prepared from two polysaccharide polymers, alginate and chitosan. The parameters influencing the complex formation were characterised using colloid titration in combination with dynamic light scattering. The polyelectrolyte interactions and morphology of the formed complexes were verified by differentia...

Ultraviolet-visible (UV-vis) and fluorescence spectroscopy have been used to characterize the polyelectrolyte complexes (PECs) formed when potassium indigo tetrasulfonate (ITS) interacts with poly diallydimethylammonium chloride (PDADMAC) through columbic attraction in the presence of the reducing agent sodium bisulfite, NaHSO3. The PDADMAC facilitates both the reduction of the ITS and the stab...

Low vitamin D (VD) status may increase prostate cancer risk but experimental evidence for this relationship is modest. We tested whether low VD status or VD receptor (VDR) deletion influences prostate epithelial cell (PEC) biology using intact mice, castrated mice, or castrated mice treated with testosterone propionate (TP, 2.5 mg/kg BW). PEC proliferation (Ki-67 staining) and apoptosis (TUNEL ...

BACKGROUND Out-of-hospital emergency care is at an early stage of development in Armenia, with the current emergency medical services (EMS) system having emergency physicians (EPs) work on ambulances along with nurses. While efforts are underway by the Ministry of Health and other organizations to reform the EMS system, little data exists on the status of pediatric emergency care (PEC) in the c...

STUDY OBJECTIVE To study the effectiveness of an anesthesiologist-directed preadmission evaluation center (PEC) in our institution. DESIGN I: Preoperative test costs were measured on two sets of patients undergoing same-day surgery. II: Rate of cancellation was measured on all patients undergoing same-day surgery in a subsequent one-year time period. SETTING The PEC, short procedure unit, a...

Tantalum nitride (Ta3N5) is a promising material for photoelectrochemical (PEC) water oxidation with a narrow band gap (2.1 eV) that can effectively utilize visible light in the solar spectrum. Ta3N5 nanotube (NT) arrays were synthesized on a Ta foil by electrochemical anodization followed by an ammonia treatment at 800 °C. The photocurrent of nanostructured Ta3N5 was over 3 times higher than t...

Abstract Photoelectrochemical (PEC) water splitting can be an efficient and economically feasible alternative for hydrogen production if easily processed photoelectrodes made of inexpensive abundant materials are employed. Here, we present the preparation porous Cu 2 O photocathodes with good PEC performance using solely electrodeposition methods. Firstly, structures delicate pore networks were...

A PEC is a Pattern Enforcing Compiler, which is like a conventional compiler only extended to include the extra checks needed to enforce design patterns. PECs are currently a research project and the PEC written is targeted at the Java programming language. This paper:

Three building blocks of the antenna complexes of the cyanobacterium Westiellopsis prolifica were studied: PEC(X), which is similar to the ot-subunit of phycoerythrocyanin (PEC), trimers of PEC and monomers derived from these by deaggregation with KSCN. The fit of the fluorescence decay curve of PEC(X) requires at least four exponentials, although it supposedly contains only one chromophore. Th...