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A gel pen uses ink in which pigment is suspended in a water -based gel. [1] Because the ink is thick and opaque, it shows up more clearly on slick surfaces than the typical inks used in ballpoint or felt tip pens. Gel pens can be used for many types of writing and illustration. The general design of a gel pen is similar to that of a regular ink ...
Kypros Nicolaides. Kyprianos "Kypros" Nicolaides FRCOG (born 9 April 1953) is a Greek Cypriot physician of British citizenship, Professor of Fetal Medicine at King's College Hospital, London. He is one of the pioneers of fetal medicine and his discoveries have revolutionised the field. [ 1 ] He was elected to the US National Academy of Medicine ...
The broad nib, also called broad-edge or chisel-edge, is the older of the two nib types. It is rigid and has a flat edge. The pen is usually held at a constant angle to the horizontal; different scripts require different nib angles. Thick and thin strokes are created by varying the direction of the stroke.
N. National Association of Neonatal Nurses. Necrotizing enterocolitis. Neonatal acne. Neonatal adrenoleukodystrophy. Neonatal alloimmune thrombocytopenia. Neonatal Behavioral Assessment Scale. Neonatal bowel obstruction. Neonatal cholestasis.
The world's largest functioning ballpoint pen was made by Acharya Makunuri Srinivasa in India. The pen measures 5.5 metres (18 ft 0.53 in) long and weighs 37.23 kilograms (82.08 lb). [62] The world's most popular pen is the Bic Cristal, with the 100 billionth model sold in September, 2006. The Bic Cristal was launched in December 1950 and ...
Fetal viability is the ability of a human fetus to survive outside the uterus. Viability depends upon factors such as birth weight, gestational age, and the availability of advanced medical care. In low-income countries, more than 90% of extremely preterm newborns (less than 28 weeks gestational age) die due to a lack of said medical care; in ...
A dip pen is a writing instrument used to apply ink to paper. It usually consists of a metal nib with a central slit that acts as a capillary channel like those of fountain pen nibs, mounted in a handle or holder, often made of wood. Other materials can be used for the holder, including bone, metal and plastic; some pens are made entirely of glass.
A luxury pen. A pen is a common writing instrument that applies ink to a surface, usually paper, for writing or drawing. [1] Early pens such as reed pens, quill pens, dip pens and ruling pens held a small amount of ink on a nib or in a small void or cavity that had to be periodically recharged by dipping the tip of the pen into an inkwell.