A Review on the Characterization of Signals and Systems by Power Law Distributions

Power laws, also known as Pareto-like laws or Zipf-like laws, are commonly used to explain a variety of real world distinct phenomena, often described merely by the produced signals. In this paper, we study twelve cases, namely worldwide technological accidents, the annual revenue of America׳s largest private companies, the number of inhabitants in America׳s largest cities, the magnitude of earthquakes with minimum moment magnitude equal to 4, the total burned area in forest fires occurred in Portugal, the net worth of the richer people in America, the frequency of occurrence of words in the novel Ulysses, by James Joyce, the total number of deaths in worldwide terrorist attacks, the number of linking root domains of the top internet domains, the number of linking root domains of the top internet pages, the total number of human victims of tornadoes occurred in the U.S., and the number of inhabitants in the 60 most populated countries. The results demonstrate the emergence of statistical characteristics, very close to a power law behavior. Furthermore, the parametric characterization reveals complex relationships present at higher level of description.

Mutilations Due to Medical Disorders in Children

Soft-tissue and bone necrosis, although rare in childhood, occasionally occur in the course of infectious diseases, either viral or bacterial, and seem to be the result of hypoperfusion on a background of disseminated intravascular coagulation. Treatment consists in correction of septic shock and control of necrosis. Necrosis, once started, shows extraordinarily rapid evolution, leading to soft-tissue and bone destruction and resulting in anatomic, functional, psychological, and social handicaps. Ten mutilated children were treated from January 1986 to January 1999 in Hospital de Dona Estefaˆ nia, Lisbon, Portugal. One was recovering from hemolytic-uremic syndrome with a severe combined immunodeficiency, another malnourished, anemic child had malaria, and three had chicken pox (in one case complicated by meningococcal septicemia). There were three cases of meningococcal and two of pyocyanic septicemia (one in a burned child and one in a patient with infectious mononucleosis). The lower limbs (knee,leg, foot) were involved in five cases, the face (ear, nose, lip) in four, the perineum in three, the pelvis (inguinal region, iliac crest) in two, the axilla in one, and the upper limb (radius, hand) in two. Primary prevention is based on early recognition of risk factors and timely correction. Secondary prevention consists of immediate etiologic and thrombolytic treatment to restrict the area of necrosis. Tertiary prevention relies on adequate rehabilitation with physiotherapy and secondary operations to obtain the best possible functional and esthetic result.

Targeting burn prevention in the paediatric population : a prospective study of children's burns in the Lausanne area.

QUESTION UNDER STUDY: Domestic accidents are an important problem in paediatric medicine. This study was designed to gain a better understanding of burn mechanisms and target prevention. METHODS: Children treated for burn lesions in the Department of Paediatric Surgery between August 2004 and August 2005 were included in this prospective study. The burn mechanisms, the children's ages and the circumstances in which children were burned as well as their home environment variables were analyzed. RESULTS: The current study included eighty-nine patients, aged between 2 months and 15 years. Seventy-eight percent were less than 5 years old. More than half were boys. Hot liquid scalding was the most frequent mechanism. There does not seem to be an increased risk in the immigrant population or in low economic status families. In most cases, an adult person was present at time of injury. CONCLUSIONS: If we were to describe the highest "at risk" candidate for a burn in our region, it would be a boy aged 15 months to 5 years who is burned by a cup of hot liquid on his hand, at home, around mealtime, in the presence of one or both parents. Reduced attention in the safe domestic setting is probably responsible.

Hugh Alexander Papers, 1811-1816 [photocopy]

Hugh Alexander, b. 1780 arrived in Niagara shortly after his birth. He attended school and later apprenticed as a clerk. In 1797 he was granted 200 acres of land in Bertie township and became a merchant and trader in Fort Erie. He was the owner of a sailing vessel, the Chippawa, which he used to transport goods in the area. The ship was lost and/or confiscated as a result of War of 1812 skirmishes on Lake Erie. By 1812 Hugh Alexander was in business together with his brother Ephraim. The Alexander’s storehouse, store and house were burned by the British military when they abandoned Fort Erie ahead of the invading American military in late May 1813. At the time of the burning, Hugh Alexander was engaged as a Lieutenant with the 3rd Lincoln Militia. Prior to this Hugh Alexander had established a second mercantile in Stamford, opposite the green. Misfortune was to strike at this location as well when the British military abandoned the whole of the Niagara area to the invading American forces and the Stamford location was looted. After the end of the hostilities Alexander went on to rebuild his storehouse in Fort Erie and to re-establish his store in Stamford. Hugh Alexander died on November 2, 1817 and is buried in the Stamford Presbyterian Cemetery. Source: George A. Seibel, The Niagara Portage Road: 200 Years 1790-1990. Niagara Falls: City of Niagara Falls, 1990, p. 259-262.

Letter - E.C. Schmon to Arthur A. Schmon, 25 November 1919

The letter begins with discussion about possible improper handling of "the books". She then describes "new plans" for their home. The second letter discusses her mother having five teeth extracted and two abscesses burned off. Her sister also had a wisdom tooth removed. The first letter is labelled number 56 and the second 57.

Statement signed by Hume Blake who has read the will of Joseph Clement and the will of Mary M. Clement

Statement signed by Hume Blake of Toronto (2 ½ pages) who has read the will of Joseph Clement dated May 14, 1810 and has also read the will of Mary M. Clement dated Sept. 10, 1842. He states that the devise to James D. Clement and Joseph Clement is void. “The executor therefore take the personal estate … and the lands devised to James and Joseph Clement descend unencumbered to the heir of the testator Joseph Clement.” This document is slightly burned on the edges but text is not affected. The outer page says “Mr. Hume Blake for Brock Woodruff, May 9, 1845.

Letter to Mr. Lee from Samuel D. Woodruff

Letter to Mr. Lee from Samuel D. Woodruff which states that in July the affidavits were sent for the purpose of getting the patent for Lot no.30, Concession 2 in Enniskillen. Mr. Woodruff requests a receipt of that information and he would like to know about the progress on the patent. The left hand of the letter is completely burned away although most of the text is still intact, Feb. 21, 1848.

Description of Edward Dell’s property in Willoughby

Description of Edward Dell’s property in Willoughby which consists of part of Lot no.9. This includes a hand-drawn map and 1 ½ page handwritten description. The edges of this document are slightly burned. This does not affect the text, n.d.

Letter to S.D. Woodruff regarding parts of Lots 9 and 10 in Willoughby and signed by Calvin Cudney and Ezekiel Cudney

Letter to S.D. Woodruff regarding parts of Lots 9 and 10 in Willoughby and signed by Calvin Cudney and Ezekiel Cudney (2 copies). Both of these copies are slightly burned on the edges. This does not affect the text, Dec. 20, 1884.

University of Toronto exams

University of Toronto exams. These are in and envelope which is marked “Arts 1st year”. Included in this package are some text book pages [Latin] with the name Ham K. Woodruff written on them. The exams include: Anatomy, Arithmetic and Algebra, Medicine Chemistry, English, Euclid, French, Greek, Latin, Latin Grammar, Latin Prose (2 copies), Materia Medica and Therapeutics and Physiology for 1879. The exams for 1880 include Arithmetic and Algebra, Greek and Trigonometry. The 1881 Greek exam is also included. There is writing on some of the exams and some are worn and stained. The envelope is torn and stained and the textbook pages are slightly burned. This does not affect the text, 1879-1881.

Indenture of memorandum of an agreement between S.D. Woodruff and James L. Burton and M. Burton

Indenture of memorandum of an agreement between S.D. Woodruff of St. Catharines and James L. Burton and M. Burton, both of Barrie, trading under the name of Burton and Bro. that Burton and Bro. would buy all the pine timber located in berths 192 and 198. Burton and Bro. agrees to have all timber cut. The agreement is signed by S.D. Woodruff and Burton and Bro. This document is badly burned along the left hand side. This does not affect the text, July 11, 1877.

Approximate estimate of the cost of completing the Port Dalhousie Railway to the Grand Central Railway Station at Lock 12

Approximate estimate of the cost of completing the Port Dalhousie Railway to the Grand Central Railway Station at Lock 12. This document is badly torn and burned but most of the text is legible, July 14, 1854.

An estimate of work done by Messrs. Brown and McDonell, contractors on sections 1, 2 and 3 ending at St. Catharines for the months of April and May 1855

Scrap of paper that has been burned almost completely. Only the header of the document is intact. It is an estimate of work done by Messrs. Brown and McDonell, contractors on sections 1, 2 and 3 ending at St. Catharines for the months of April and May 1855.

Chart of estimate for work done on the Port Dalhousie and Thorold Railway

Chart of estimate for work done on the Port Dalhousie and Thorold Railway by John Brown, contractor regarding the section between Geneva Street and the Thorold Station for the month of Dec. 1855. This document is burned on the right hand side. This affects the text slightly. It is signed by S.D. Woodruff, Jan. 1856.

Chart of estimate for work done on the Port Dalhousie and Thorold Railway by John Brown

Chart of estimate for work done on the Port Dalhousie and Thorold Railway by John Brown, contractor regarding the section between Geneva Street and the Thorold Station up to the 30th of June 1856. This document is burned on the edges. This does not affect the text, 1856