Currently in the group we can define three sub groups: 1. Zeolites chemistry Group 3. The focus is put on i preparation, characterization and reactivity studies of bulk, nanostructured and porous oxide materials that are functionalized by mono- and polinuclear complexes of transition metal ions, for guiding surface reactions along specific pathways ii investigations into quantitative relationships between electronic and magnetic structure of solids and their reactivity, iii mechanistic studies of simple and cyclic surface reactions associated with catalytic chemistry of small molecules O 2 , NO x , CO x , H 2 O, VOC application of spectroscopic techniques, with emphasis on electron paramagnetic resonance, to examination of low symmetry functional and catalytic materials, interfacial spins processes and surface reactivity. The main objects of the investigations are various bulk, micro and mesoporous oxide materials, and nanocatalysts, carbonaceous materials and carbon replicas, as well as synthetic and natural polymers.
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Pittman received his B. Pittman is a former partner at Moring, he clerked for John A. Terry of the District of Columbia Court of Appeals. On November 9, , he was reported to the Senate floor by the committee. On January 25, , the Senate confirmed his nomination by voice vote, he was sworn in on April 4, Biography at District of Columbia Courts. A stiletto heel is a long, high heel found on some boots and shoes. It is named after the stiletto dagger, the phrase being recorded in the early s.
Stiletto heels may vary in length from 2. Stiletto-style heels 5 cm or shorter are called kitten heels. Not all high slim heels merit the description stiletto; the slender classic Italian-style stiletto heels of the late s and early s were no more than 5 mm in diameter for much of their length, although the heel sometimes flared out a little at the top-piece. After their demise in the mid-late s, such slender heels were hard to find until due to changes in the way heels were mass-produced.
Thin high heels were around in the late 19th century, as numerous fetish drawings attest. Firm photographic evidence exists in the form of photographs of Parisian singer Mistinguett from the s; these shoes were designed by Andre Perugia , who began designing shoes in It seems unlikely that he invented the stiletto, but he is the first firmly-documented designer of the high, slim heel.
The word stiletto applied to a heel is derived from a knife or dagger stiletto, a long, thin blade, to which the heel of the shoe is similar in profile, its usage in footwear first appeared in print in the New Statesman magazine in "She came High-heel shoes were worn by women courtiers; the stiletto heel came with the advent of technology using a supporting metal shaft or stem embedded into the heel, instead of wood or other, weaker materials that required a wide heel.
This revival of the opulent heel style can be attributed to the designer Roger Vivier and such designs became popular in the s; as time went on, stiletto heels would become known more for their erotic nature than for their ability to make height. Stiletto heels are a common fetish item; as a fashion item, their popularity has changed over time. After an initial wave of popularity in the s, they reached their most refined shape in the early s, when the toes of the shoes which bore them became as slender and elongated as the stiletto heels themselves.
As a result of the overall sharpness of outline, it was customary for women to refer to the whole shoe as a "stiletto", not just the heel, via synecdoche. Although they faded from the scene after the Beatle era began, their popularity continued at street level, women stubbornly refused to give them up after they could no longer find them in the mainstream shops. A version of the stiletto heel was reintroduced in by Manolo Blahnik , who dubbed his "new" heel the "Needle". Old, unsold stocks of pointed-toe stilettos and contemporary efforts to replicate them were sold in street fashion markets and became popular with punks and with other fashion "tribes" of the late s until supplies of the inspirational original styles dwindled in the early s.
Subsequently, round-toe shoes with thicker semi-stiletto heels very high in an attempt to convey slenderness were worn at the office with wide-shouldered power suits. The style survived through much of the s but completely disappeared during the s, when professional and college-age women took to wearing shoes with thick, block heels; the slender stiletto heel staged a major comeback after when young women adopted the style for dressing up office wear or adding a feminine touch to casual wear, like jeans.
Stiletto heels are associated with the image of the femme fatale, they are considered to be a seductive item of clothing, feature in popular culture in this context. Stilettos, like all similar high-heeled shoes, give the optical illusion of a longer, slimmer leg, a smaller foot, overall greater height, they alter the wearer's posture and gait, flexing the calf muscles and making the bust and buttocks more prominent.
All high heels counter the natural functionality of the foot, sometimes causing skeletal and muscular problems if users wear them excessively. Despite their impracticality and fluctuating demand, they persist as a fashion option. Stiletto heels concentrate a large amount of force into a small area; the great pressure under such a heel can cause damage to floors.
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Podstawy Chemii Nieorganicznej Tom 1 - Adam Bielanski.pdf
Pittman received his B. Pittman is a former partner at Moring, he clerked for John A. Terry of the District of Columbia Court of Appeals. On November 9, , he was reported to the Senate floor by the committee. On January 25, , the Senate confirmed his nomination by voice vote, he was sworn in on April 4, Biography at District of Columbia Courts.
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