This paper focuses on the need for standardised calibration procedures for automated non-invasive measurement of blood pressure. A critical overview of the existing standards and protocols dealing with the calibration of these devices is provided highlighting the need for a

The paper presents research results of the thermal structure of the near-ground atmospheric layer (100 m) carried out in the years 1993-2005 in Sosnowiec. It is a city located in the central part of the most urbanised and industrialised Katowice

Particulate Matter (PM) is still a problem in urban areas. The concentration of PM in Berlin and its variability is the subject of this study based on data of six official PM10 monitoring stations and a measuring program carried out

The aim of this study was to develop a technique based on reflectance spectroscopy that is capable of evaluating small amounts of sediment dust. Laboratory simulations and two field experiments conducted in the same office environment were carried out to

Tracer gas was released upwind of a cubical model building in the field, under neutral atmospheric conditions, in order to investigate the dependence of mean wake concentrations on averaging time. Two different experimental settings were examined, with the obstacle isolated

A pair of before-and-after images shows how the June 2009 eruption of Sarychev Peak Volcano transformed Matua Island.

Researchers have reconstructed atmospheric carbon dioxide levels over the past 2.1 million years in the sharpest detail yet, shedding new light on its role in the Earth's cycles of cooling and warming. (The Earth Institute at Columbia University press release)

Some of the substances that are helping to avert the destruction of the ozone layer could increasingly contribute to climate warming, according to a new study. (NOAA Headquarters press release)

One hundred million years of rock formation are visible in exposed layers at Waterpocket Fold in Capital Reef National Park. This astronaut photo from June 14, 2009, shows the layered, multi-colored rock formations.

Modern glaciers, such as those making up the Greenland and Antarctic ice sheets, are capable of undergoing periods of rapid shrinkage or retreat, according to new findings by paleoclimatologists at the University at Buffalo. (University at Buffalo press release)

The large-scale production of clean energy is one of the major challenges society is currently facing. Molecular hydrogen is envisaged...

The self-assembled heterocapsule 1·2, which is formed by the hydrogen bonds of tetra(4-pyridyl)-cavitand 1 and tetrakis(4-hydroxyphenyl)-cavitand 2, encapsulates 1 molecule...

A multipoint recognition system based on a calix[6]arene is described. The calixarene core is decorated on alternating aromatic subunits by...

Cyclic amines can be encapsulated in a water-soluble self-assembled supramolecular host upon protonation. The hydrogen-bonding ability of the cyclic amines,...

Calix[4]pyrroles having extended aromatic cavities have been functionalized with 4 ureas in the para position of their meso phenyl substituents....

affray: a tumultuous assault or quarrel; a brawl.

A new repayment option is available for Americans with heavy federal student loan burdens: the Income-Based Repayment (IBR) plan.

Secretary Duncan announced that $13 billion will be available for schools and millions of dollars for better student loans and financial aid.

Education is the civil rights issue of our generation," Secretary Duncan said in a statement on the 45th anniversary of Title VI of the Civil Rights Act of 1964.