17 research outputs found
A Role for the Vacuolating Cytotoxin, VacA, in Colonization and Helicobacter pylori-Induced Metaplasia in the Stomach
No full textCarriage of Helicobacter pylori strains producing more active (s1/i1) forms of VacA is strongly associated with gas-tric adenocarcinoma. To our knowledge, we are the
first to determine effects of different polymorphic forms of VacA on inflammation and metaplasia in the mouse stomach. Bacteria producing the less active s2/i2 form of VacA colonized mice more efficiently than mutants null for VacA or producing more active forms of it, providing the
first evidence of a positive role for the minimally active s2/i2 toxin. Strains producing more active toxin forms induced more severe and extensive metaplasia and in flammation in the mouse stomach than strains producing weakly active (s2/i2) toxin. We also examined the association in humans, controlling for cag PAI status. In human gastric biopsy specimens, the vacA i1 allele was strongly associated with precancerous intestinal metaplasia, with almost complete absence of intestinal metaplasia in subjects infected with i2-type strains, even in a vacA s1, cagA+ background
Working towards an international ANPR Standard — An initial investigation into the UK standard
No full textThis paper examines the use of the UK National ACPO ANPR Standard (NAAS) as the “de facto” technical standard applied in many international countries. It considers the requirement for a standard and examines the effectiveness of the current NAAS and questions its fitness for purpose. The need for accuracy is discussed in terms of both tackling terrorism, serious crime and other law enforcement investigations alongside the need to protect citizens from unwarranted infringement of their privacy as a result of ANPR misreads. The causes of inaccurate ANPR read data are examined in more detail and recommendations made as to how improvements could be introduced to minimise the risk of misreads and “missed” reads. This paper recommends future parameters of measurement and provides examples of gaps between the current standards and existing legislation. Laboratory and field testing was carried out to gain a better understanding of the factors that affect the performance of ANPR systems. These tests were carried out under a variety of weather and lighting conditions. The results of this work have led to further testing to better understand the optimum conditions for number plate capture by a variety of ANPR systems. Additional testing has been carried out using "hard to read" number plates with a number of differing characteristics such as illegally spaced characters, illegal fonts, screw caps that interfere with infrared imaging and defects in the construction of the number plate itself (whether created inadvertently at the point of manufacture or subsequently caused by damage / wear and tear / weather conditions). The first author is a UK police officer and, like his senior analyst colleague who is the second author, has wide experience in testing and developing ANPR systems. The authors have been commissioned by the UK Home Office to carry out post graduate ANPR research at the University of Hertfordshire
Accuracy of automatic number plate recognition (ANPR) and real world UK number plate problems
No full textAbstract — This paper considers real world UK number plates and relates these to ANPR. It considers aspects of the relevant legislation and standards when applying them to real world number plates. The varied manufacturing techniques and varied specifications of component parts are also noted. The varied fixing methodologies and fixing locations are discussed as well as the impact on image capture. Key words—ANPR, number plates, optical characte
Tune in. Student's book
No full textLa Serie Tune in es resultado de un proyecto de investigación para el aprendizaje de una lengua extranjera donde se conjuga la estimulación y la formación lingüística con un enfoque novedoso, ya que ambos se complementan obteniendo un aprendizaje más eficaz, con énfasis en las destrezas de comprensión y expresión oral. Se presenta pues un modelo didáctico diferente, donde las unidades didácticas se desarrollan a partir de la introducción de sonidos que van adquiriendo contenido a medida que avanza la sesión
Este libro forma parte de los materiales utilizados en un curso impartido por el Centro de Lenguas de la Universitat Politècnica de València de modo que no están disponibles los audios que en él se incluyen ya que deben ser escuchados a través de un oído electrónico, mediante unos auriculares especialesCerna Vergara, H.; Capitán Soriano, Á.; Pérez Guillot, MC.; McLucas Yvonne; Martínez Miquel, M.; Rhead, D.; Bennett, M.... (2018). Tune in. Student's book. Editorial Universitat Politècnica de València. https://riunet.upv.es/handle/10251/113121EDITORIA
Tune in. Teacher's book
No full textLa Serie Tune in es resultado de un proyecto de investigación para el aprendizaje de una lengua extranjera donde se conjuga la estimulación y la formación lingüística con un enfoque novedoso, ya que ambos se complementan obteniendo un aprendizaje más eficaz, con énfasis en las destrezas de comprensión y expresión oral.Se presenta pues un modelo didáctico diferente, donde las unidades didácticas se desarrollan a partir de la introducción de sonidos que van adquiriendo contenido a medida que avanza la sesión.Este libro servirá como guía didáctica al profesor dando claves para orientar la formación
Este libro forma parte de los materiales utilizados en un curso impartido por el Centro de Lenguas de la Universitat Politècnica de València de modo que no están disponibles los audios que en él se incluyen ya que deben ser escuchados a través de un oído electrónico, mediante unos auriculares especialesCerna Vergara, H.; Capitán Soriano, Á.; Pérez Guillot, MC.; McLucas Yvonne; Martínez Miquel, M.; Rhead, D.; Bennett, M.... (2018). Tune in. Teacher's book. Editorial Universitat Politècnica de València. https://riunet.upv.es/handle/10251/112818EDITORIA
American trout-stream insects; a guide to angling flies and other aquatic insects alluring to trout, selected and painted for each month of the trout season from nearly one hundred living specimens native to the rivers and lakes of the temperate zone of North America, with notes on and reproductions of artificial imitation flies tied by the author, and a chapter on the mode of tying artificial flies, with assisting charts and illustrations in the text, together with descriptions and illustrations of a complete set of new artificial nature-lures copied exactly from carefully colored life-pictures of all creatures that bass and other game fishes consume as food
No full textImpact of UK Number Plates on the Accuracy of Automatic Number Plate Recognition (ANPR)
No full textThis paper considers real world number plates and relates these to ANPR. It considers aspects of the relevant legislation and standards when applying them to real world number plates. The varied manufacturing techniques and varied specifications of component parts are also noted. The varied fixing methodologies and fixing locations are discussed as well as the impact on image capture
The effect of ANPR Camera Settings on System Performance
No full textLaw Enforcement agencies in the UK have utilised Automatic Number Plate Recognition (ANPR) technology for several decades with a number of high profile crime detection successes. In an effort to ensure that end users are provided with the very best investigative opportunities, data accuracy and system performance must be constantly reviewed. This primary research has been conducted with the aim of better understanding the effect of ANPR camera settings on the performance of imaging systems used by the Police and other Law Enforcement Agencies for crime prevention and detection purposes. This preliminary research examines key performance factors and outlines empirical real world field assessment of the infra-red set up of a poorly performing fixed ANPR system. The outcomes of this work are intended to support the formulation of international guidance around camera set up published alongside the latest National ANPR Standards for Policing
The Effect of Retro-reflectivity and Reflectance of UK Number Plates on ANPR Performance
No full textThe UK police service is one of the biggest users of ANPR technology in the world and over a number of years Police Forces have reported variances in ANPR performance based upon the retro-reflectivity properties of UK number plates. Laboratory and field-based research has been conducted with the aim of better understanding the effect of number plate component differences upon imaging systems used by law enforcement agencies for crime prevention and detection purposes. The retro reflective properties of number plates in the Infra-Red can depart significantly from visible light performance. The outcome of this work has implications for both the British Standard and for practical ANPR system design
My Dear Horace Kephart: Letters from George Mac Reynolds and Louise Rhead
No full textHorace Kephart was a renaissance man of his day. A librarian, author, and impassioned outdoorsman, he maintained a career at the St. Louis Mercantile Library before moving to North Carolina in 1904. Kephart wrote extensively on camping, woodcraft, and wildlife. He also worked to establish the smoky mountain national park. To offer a sense of his personality and appreciation for both the human-made and the natural world, he wrote the following in a letter dated Oct. 2, 1888 to friend Harry Koopman: “Imagine Boston or Florence set in the midst of the Yellowstone Park with no suburbs or even a farm within 200 miles – that’s my idea of paradise! When a fellow wanted to he could go to the public library or the opera, when he wanted to, he could walk right out into the primeval truth of things and cuss the universe of shams – be Samuel Jonson and Daniel Boone by turns!”(26). The ensuing letters from 1916 reflect Kephart’s foothold in both the professional and natural worlds
