scholarly journals What is the world record of alpha-fetoprotein level?

2021 ◽  
Vol 30 (2) ◽  
pp. 212-212
Author(s):  
Dalina Diana Pop ◽  
Dan L Dumitrascu
Keyword(s):  
Alpha Fetoprotein ◽  
World Record ◽  
The World

scholarly journals Gargantuan Hail in Argentina

2020 ◽  
Vol 101 (8) ◽  
pp. E1241-E1258 ◽  
Author(s):  
Matthew R. Kumjian ◽  
Rachel Gutierrez ◽  
Joshua S. Soderholm ◽  
Stephen W. Nesbitt ◽  
Paula Maldonado ◽  
...  
Keyword(s):  
Social Media ◽  
Large Population ◽  
Laser Scanner ◽  
Meteorological Conditions ◽  
Dimension Stone ◽  
World Record ◽  
Maximum Dimension ◽  
Supercell Storm ◽  
The World ◽  
Local Residents

Abstract On 8 February 2018, a supercell storm produced gargantuan (>15 cm or >6 in. in maximum dimension) hail as it moved over the heavily populated city of Villa Carlos Paz in Córdoba Province, Argentina. Observations of gargantuan hail are quite rare, but the large population density here yielded numerous witnesses and social media pictures and videos from this event that document multiple large hailstones. The storm was also sampled by the newly installed operational polarimetric C-band radar in Córdoba. During the RELAMPAGO campaign, the authors interviewed local residents about their accounts of the storm and uncovered additional social media video and photographs revealing extremely large hail at multiple locations in town. This article documents the case, including the meteorological conditions supporting the storm (with the aid of a high-resolution WRF simulation), the storm’s observed radar signatures, and three noteworthy hailstones observed by residents. These hailstones include a freezer-preserved 4.48-in. (11.38 cm) maximum dimension stone that was scanned with a 3D infrared laser scanner, a 7.1-in. (18 cm) maximum dimension stone, and a hailstone photogrammetrically estimated to be between 7.4 and 9.3 in. (18.8–23.7 cm) in maximum dimension, which is close to or exceeds the world record for maximum dimension. Such a well-observed case is an important step forward in understanding environments and storms that produce gargantuan hail, and ultimately how to anticipate and detect such extreme events.

Engineering as a Prerequisite for Growth: New York and its Infrastructure

2019 ◽  
Author(s):  
Marie Ennis ◽  
Donald Friedman
Keyword(s):  
New York ◽  
Structural Engineering ◽  
Large City ◽  
Close Correlation ◽  
Structural Type ◽  
World City ◽  
Suspension Bridges ◽  
World Record ◽  
Physical Constraints ◽  
The World

<p>As a world city, New York is famous for many reasons; as a large city located primarily on islands at a complex of rivers, bays, and tidal straits, it has long depended on structural engineering for viability. Prominent structures include underwater vehicular and rail tunnels, bridges of every structural type, and aqueducts. Ten different buildings have held the world record for height, two arch bridges have held the world record for span, and four different suspension bridges have held the world record for their main span. With a multitude of successful businesses and the physical constraints of the geography, the motivation for technical innovation were present, and engineers were ready for the challenges.</p><p>These structures have generally not been built because they would break records, but rather because they served a purpose. For example, the Brooklyn Bridge, with a center span fiIy percent longer than the second- longest at the time of its construction, was built because ferries were the only transportation between New York and Brooklyn, then the first and third largest cities in the country. There is a close correlation, decade by decade and beginning in the 1880s, between what was feasible in terms of structural engineering and what has been built to enable the city to grow and prosper. This paper will examine that correlation and engineers’ role in the city’s evolution.</p>

scholarly journals Performance analysis of both sex marathon runners ranked by IAAF

2018 ◽  
Vol 20 (2) ◽  
pp. 182-189
Author(s):  
Anselmo José Perez ◽  
Adilson Marques ◽  
Kamilla Bolonha Gomes
Keyword(s):  
Performance Analysis ◽  
Black Community ◽  
International Association ◽  
Lower Percentage ◽  
Economic Independence ◽  
World Record ◽  
African Countries ◽  
Marathon Runners ◽  
The World ◽  
World Records

Running a marathon has become the motivation to achieve success and economic independence for athletes, mainly from African countries. This feeling is more evident among the black community, considering that they have been presenting better results than white athletes. The objective of the study was to analyse the ranking of marathon runners around the world, in the last 15 years considering: 1) nationality; 2) best average time of the 100 best classified runners from the Top 100, Top 50, Top 25, Top 10 and Top 3. An analysis was made to the ranking available on the International Association of Athletics Federations (IAAF) website, for the 100 best world results for both sexes, focusing on records from 2000 to 2014. The analysis was subdivided into ranking groups (Top 3, 10, 25, 50 and 100), resulting in 3000 records. African runners, Kenyan and Ethiopian, dominate the male ranking representing 70% of the total of runners in Top 100, keeping this proportion up to Top 3. African runners, Kenyan and Ethiopian, dominate the male ranking representing 70% of the total of runners in Top 100, keeping this proportion up to Top 3. The same is observed for females, however with a significantly lower percentage (34%), with Japanese, Ethiopian and Kenyan (17%) and an English athlete as the world record. The average time of a marathon has been decreasing in males more than in female competitions, both in Top 3 and Top 10, however still presenting a large gap from world records. 

scholarly journals Análisis biomecánico de la competición de 3000 m obstáculos (Biomechanical analysis of the 3000 m steeplechase competition)

Retos ◽  
2015 ◽  
pp. 157-162
Author(s):  
Ana Ogueta-Alday ◽  
Fernando Muñoz Molleda ◽  
Juan García-López
Keyword(s):  
Velocity Ratio ◽  
El Paso ◽  
Step Length ◽  
Flight Time ◽  
Biomechanical Analysis ◽  
World Record ◽  
Male And Female ◽  
London 2012 ◽  
The World ◽  
And Gender

El objetivo es analizar el comportamiento de las variables cinemáticas del paso del obstáculo y la ría, su relación con el rendimiento y la influencia del género y la fatiga en la prueba de 3000 m obstáculos. Durante el XVII Mitin Ciudad de Mataró (clasificatorio para los JJOO de Londres-2012) se analizaron dos pruebas donde participaron 35 atletas (19 hombres y 16 mujeres) que fueron divididos en 3 grupos de nivel en función de su rendimiento comparado con el Récord del Mundo. Las grabaciones fueron digitalizadas mediante un análisis cinemático en 2D (Kinescan-IBV). Algunas variables en el paso del obstáculo (velocidad, distancia de batida y porcentaje tiempo de vuelo) y de la ría (velocidad y pérdida de velocidad en las últimas vueltas) fueron sensibles al nivel, y otras al género (obstáculo: velocidad y distancia de batida relativas a la velocidad de la prueba; ría: velocidad relativa a la velocidad de la prueba). Las variables que no fueron sensibles al nivel, género y fatiga permiten establecer valores de referencia para el entrenamiento (ej. distancia de ataque ~53-55% en el obstáculo y ~35-39% en la ría). En conclusión, este es el primer estudio que analiza conjuntamente la biomecánica del paso del obstáculo y la ría en una prueba de 3000 m obstáculos, relacionando variables biomecánicas con el rendimiento y el género. Se observó que existe una falta de amplitud en el paso del obstáculo en mujeres, y que tanto hombres como mujeres deberían mejorar su técnica de paso de la ría.Palabras clave: Biomecánica, carrera, obstáculos, rendimiento.Abstract: The purpose of this study was to analyze the kinematic variables of both steeplechase and steeplechase water jumps, their relationship with performance, and the influence of some factors such as gender and fatigue during a 3000 m steeplechase competition. Two races of the XVII Athletics Meeting Ciudad de Mataró (National Trials for London-2012 Olympic Games) were recorded. Thirty-five athletes were analyzed (19 male and 16 female) and classified into 3 groups according to their competition performance level compared to the World Record. Images were digitalized by a 2D kinematic analysis (Kinescan-IBV). The results showed that some biomechanical variables of the steeplechase jump (steeplechase velocity, step length and percentage of flight time) and steeplechase water jump (steeplechase velocity and its decrease over the laps) were related to performance. Other variables were sensitive to the gender (steeplechase jump: steeplechase/competition velocity ratio and step length/steeplechase velocity ratio; steeplechase water jump: steeplechase/competition velocity ratio). The variables which were not related to performance, gender or fatigue allowed establishing reference values for training (e.g. takeoff distance of ~53-55% in the steeplechase jump and ~35-39% in the steeplechase water jump). In conclusion, this is the first study that simultaneously analyzed the biomechanics of both steeplechase and steeplechase water jumps during a 3000 m steeplechase competition, relating biomechanical variables to performance and gender. The comparisons with respect to previous studies indicated that the females had a short step length in the steeplechase, and that both male and female should improve their steeplechase water jump technique.Keywords: biomechanics, running, steeplechase, performance.

The World Record Saab Turbo Long Run Project

1987 ◽  
Author(s):  
Olle Granlund ◽  
Torsten Aman ◽  
Brage Sundstrom ◽  
Kenth Johansson ◽  
Steven Rossi
Keyword(s):  
World Record ◽  
Long Run ◽  
The World

Why has Macao attracted the world-record gaming revenue?

2019 ◽  
Author(s):  
Carlos Siu Lam
Keyword(s):  
Cultural Revolution ◽  
Open Door ◽  
Open Door Policy ◽  
World Record ◽  
High Stakes ◽  
Mainland Chinese ◽  
The World ◽  
Chinese Psychology ◽  
Major Factors ◽  
To Receive

Macao, located on the southeast coast of China, is perfectly situated to receive patrons from China about thirty years after its open-door policy in 1978 when they have accumulated significant amounts of wealth. With its gaming liberalization and the supply of such mainland Chinese patrons, Macao has become the world’s gambling capital since 2007. This article aims to analyze the major factors leading to this dominant economic performance.   The experience of the mainland Chinese in the Cultural Revolution and the Era of the Gang of Four has motivated them to get rich quick to enjoy the material comforts that they have been deprived. Given that baccarat has a low house edge and is easy to play, many mainland Chinese like to play baccarat in Macao. Moreover, the interaction with the card afforded by baccarat, makes patrons feel that that they can control over the gambling outcome, and this fits the mainland Chinese psychology in their attempt to win much and quick with their high stakes.     On the other hand, casinos have trained croupiers to make their patrons stay longer, including being polite, identifying the emotional status of patrons, managing patrons’ emotions and regulating the croupiers’ own emotions. In this way, casinos in Macao not only can make patrons experience sovereignty while in control of the staff-client interactions, but also help Macao attract the world-record gaming revenue.

Some Criteria for Evaluating the “Fairness” of Swimming Classification

1999 ◽  
Vol 16 (3) ◽  
pp. 271-289 ◽  
Author(s):  
Daniel J. Daly ◽  
Yves Vanlandewijck
Keyword(s):  
Swimming Speed ◽  
Classification System ◽  
Statistical Difference ◽  
Functional Class ◽  
Complex Nature ◽  
Functional Classification ◽  
World Record ◽  
The World ◽  
Race Performance

In disability swimming, a functional classification system is used in which swimmers with varying impairments compete against each other in one of 10 classes. In classification research, the criterion most often used to judge validity (fairness) is statistical difference in race performance between adjacent classes. Additional criteria are proposed here. First, the world-record swimming speed should decrease in a predictable manner with decreasing functional class. Second, classes should be clearly discriminated by race performances. To aid in evaluating these criteria, a comparison of the competitiveness (depth of the field) of the classes is made. The criteria were not strictly met in all classes. However, the sprint freestyle events approached fairness, especially for men. The exceptions were more due to a lack of maturity of the sport than to fundamental unfairness. Because of the more complex nature of breaststroke, more problems were observed related to classification fairness in this event.

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