Large Population with Low Marker Density Verse Small Population with High Marker Density for QTL Mapping: A Case Study for Mapping QTL Controlling Barley Net Blotch Resistance

2012 ◽  
pp. 301-315 ◽  
Author(s):  
Jian Yang ◽  
Chengdao Li ◽  
Xue Gong ◽  
Sanjiv Gupta ◽  
Reg Lance ◽  
...  
Author(s):  
Donald DeVito ◽  
Gertrude Bien-Aime ◽  
Hannah Ehrli ◽  
Jamie Schumacher

Haiti has experienced a series of catastrophic natural disasters in recent decades, resulting in significant loss of life and long-term damage to infrastructure. One critical outcome of these disasters is that there are approximately 400,000 orphans in the small population of just over 10 million. Throughout Haiti, children with disabilities are often considered cursed, and thus are rejected by the community in which they live. Haitian children with disabilities need creative and educational activities that will help them grow, develop, enjoy their lives, and become accepted members of the community. This chapter on the Haitian Center for Inclusive Education presents a case study of social media engagement and music learning, with an emphasis on social justice that has contributed to sustainable efforts.


2014 ◽  
Author(s):  
C.J.. J. Segnini ◽  
M.. Rashwan ◽  
M.J.. J. Hernandez ◽  
J. A. Rojas ◽  
M.A.. A. Infante

Abstract This paper presents a methodology for the probabilistic analysis of an infill or step-out opportunity using numerical simulation. Sensitivity and uncertainty analyses for all involved parameters were evaluated through different experimental design techniques. Subsequently, a proxy model was established to reproduce the numerical model performance. Finally, three appropriate solutions were selected from a large population of realizations corresponding to probabilistic percentiles (90%, 50%, and 10% certainty that the specified volume will be recovered). This proposed methodology helped the asset team to evaluate the well candidates more precisely, confidently, and in less time than the current standard methodology. More knowledge about the variables and their effects on overall outcomes was also gained, which helped the team make more-informed decisions. The workflow used the same numerical modeling software, incorporating and facilitating the changes of both static and dynamic properties simultaneously. A case study from Teak field, on the east coast of Trinidad, illustrates the applicability of the methodology and compares its results to those obtained using the standard workflow for the asset. The methodology is one of the latest developments in reservoir simulation, and it has not yet been incorporated into the operator's common practices and procedures for exploitation of the TSP fields.


2019 ◽  
Vol 1 (2) ◽  
pp. 522
Author(s):  
Galih Husain Fauzi ◽  
Ermanto Fahamsyah

Indonesia is one of the countries that has large population. Development of public housing is tended in order that every family can occupy a public housing that is proper in healthful, secure, harmonious, and uniformed environment. The proper public house is a house construction that is fulfill safety regulation in its construction, suffice the minimum construction area, and give health for public house occupant. Realize of the statements, is needed for developing a construction public housing that can be occupied together in a public house building,that is devided in some parts separately, on vertical ar horizontal for every occupation. There is a lot of participants that is involved in developing a public house building, that is the developer as a participant for developing a public house building, owner, and the occupant as an organizer. The public house building certificate will be proven with a freehold public house building certificate for every occupant that is already fulfill the regulations as an owner in the public house building. Researcher has taken one of the case studies about the restraining of a freehold of public house building, with purpose of the case study is knowing a consumer protection legally toward the participant developer that is restraing a freehold public house building. Researcher solved this case study using the normative method that is supported an interview with related parties. Based on the research will be knowing that the regulation of a freehold public house building certificate does not applied clearly on the sanction of participant developer that is restraining a freehold public house building certificate on the time that is determined.


Information ◽  
2019 ◽  
Vol 10 (12) ◽  
pp. 390 ◽  
Author(s):  
Ahmad Hassanat ◽  
Khalid Almohammadi ◽  
Esra’a Alkafaween ◽  
Eman Abunawas ◽  
Awni Hammouri ◽  
...  

Genetic algorithm (GA) is an artificial intelligence search method that uses the process of evolution and natural selection theory and is under the umbrella of evolutionary computing algorithm. It is an efficient tool for solving optimization problems. Integration among (GA) parameters is vital for successful (GA) search. Such parameters include mutation and crossover rates in addition to population that are important issues in (GA). However, each operator of GA has a special and different influence. The impact of these factors is influenced by their probabilities; it is difficult to predefine specific ratios for each parameter, particularly, mutation and crossover operators. This paper reviews various methods for choosing mutation and crossover ratios in GAs. Next, we define new deterministic control approaches for crossover and mutation rates, namely Dynamic Decreasing of high mutation ratio/dynamic increasing of low crossover ratio (DHM/ILC), and Dynamic Increasing of Low Mutation/Dynamic Decreasing of High Crossover (ILM/DHC). The dynamic nature of the proposed methods allows the ratios of both crossover and mutation operators to be changed linearly during the search progress, where (DHM/ILC) starts with 100% ratio for mutations, and 0% for crossovers. Both mutation and crossover ratios start to decrease and increase, respectively. By the end of the search process, the ratios will be 0% for mutations and 100% for crossovers. (ILM/DHC) worked the same but the other way around. The proposed approach was compared with two parameters tuning methods (predefined), namely fifty-fifty crossover/mutation ratios, and the most common approach that uses static ratios such as (0.03) mutation rates and (0.9) crossover rates. The experiments were conducted on ten Traveling Salesman Problems (TSP). The experiments showed the effectiveness of the proposed (DHM/ILC) when dealing with small population size, while the proposed (ILM/DHC) was found to be more effective when using large population size. In fact, both proposed dynamic methods outperformed the predefined methods compared in most cases tested.


2010 ◽  
Vol 39 (6) ◽  
pp. 499 ◽  
Author(s):  
Damien J. Lightfoot ◽  
Amanda J. Able
Keyword(s):  

1979 ◽  
Vol 42 (5) ◽  
pp. 380-384 ◽  
Author(s):  
BETTY JUNE MYERS

Two thousand and seventy four fresh fish representing 24 genera and 43 species were purchased from commercial marine fisheries in Washington, Oregon and California. They were examined for anisakine nematodes by dissection, candling or digestion of the muscle and elution of the viscera. Thirty thousand and thirty-two anisakine nematodes were recovered from the fish examined; however, no anisakine nematodes were recovered from the shellfish examined. Both Anisakis sp. and Phocanema sp., which are considered pathogens for human consumers of raw or semiraw fish, were encountered. Of the anisakines. Anisakis sp. larvae were found in a greater number of the fish hosts examined than Phocanema sp. larvae, which were found in fewer fish hosts and at lower incidence. The higher incidence of Anisakis sp. larvae was probably due to the large population of whales, the host in which this species reaches maturity. The lower incidence of Phocanema sp. larvae is a reflection of the small population of seals, the definitive host for this species.


2013 ◽  
pp. 9-28 ◽  
Author(s):  
Nicholas Adam Perdue

Populations in contemporary cities are being measured, analyzed, or represented in less than optimal ways. Conventional methods of measuring density of populations in cities rely on calculating the number of people living within a bounded surface space. This approach fails to account for the multiple floor residential patterns of the contemporary urban landscape and exposes the vertical space problem in population analytics. To create an accurate representation of people in contemporary urban spaces, a move beyond the conventional conception of density is needed. This research aims to find a more appropriate solution to mapping humans in cities by employing a dasymetric method to represent the distribution of people in a city of vertical residential structures. The methodology creates an index to classify the amount of floor space for each person across the extent of the city, a metric called the personal space measure. The personal space measure is juxtaposed with the conventional population density measurements to provide a unique perspective on how population is concentrated across the urban space. The personal space metric demonstrates how improved metrics can be employed to better understand the social and structural landscape of cities. Chicago, with a large population and a high vertical extent, makes an ideal case study to develop a methodology to capture the phenomena of urban living in the 21st century and to explain alternative approaches to accurately and intelligently analyze the contemporary urban space.


1967 ◽  
Vol 13 (2) ◽  
pp. 167-172
Author(s):  
Jack Konowalchuk ◽  
Joan I. Speirs

Propagation of coxsackievirus B5 on cell lines revealed two variants, one that yields small plaques and is stable and another that is large but variable in size. Multiple-burst studies on the large-plaque pool showed the existence of two different population sections. Analysis of a sample from a plaque belonging to the small population section showed a progeny of small plaques while a similar analysis from a plaque in the large population section produced plaques of varying size but whose mean plaque diameter resembled that of the parent culture. Repeated selection for smallness from plaques in the large population section resulted in small plaques and a shift from the large to the small population section. Analysis of the small pool virus on monkey kidney monolayers revealed the presence of a few typical monkey kidney plaques which differed from normal monkey kidney plaques by producing only small plaques on HEp-2 monolayers.


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