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| International Journal of Applied Science and Computations | | | Ongoing since 2007 |
| | Abualrub, M.S., Frisbie, S.H., Mitchell, E.J., and Sarkar, B
Abstract:
Method detection limit (MDL) is perhaps the most important statistic used for the reporting of toxic chemicals in air, drinking water, wastewater, food, hazardous wastes, and other environmental samples. A toxic chemical measured at a concentration that is less than its MDL is reported as “not detected” and is generally considered to be absent from the sample and the environment. In contrast, a toxic chemical measured at a concentration that is greater than or equal to its MDL is reported at its measured concentration. Furthermore, many chemicals are so toxic that they cannot be measured to safe levels and the allowable limits must be set at the lowest reportable concentrations. We will demonstrate that the equation promulgated by 40 Code of Federal Regulations (CFR) to calculate MDL and used since 1981 to protect public health and the environment is incorrect. As a result, toxic chemicals in a large number of environmental samples may in fact be present at measurable concentrations even though they are currently being reported as “not detected”. In addition, the allowable limits for some extremely toxic chemicals may be incorrectly set too high. Therefore, the consequences of this error pose a risk to public health and the environment. The sources of this error will be explained and an improved equation is presented.
| | | | on going research |
| | Abualrub, M.S. & Abu Ghalyoun, O. | Journal of Applied Functional Analysis (JAFA) | Vol.6, No.4, pp 308-313 | | 2011 |
| | Abualrub M.S. and Qudah M.A. | International Mathematical Forum (IMF) Journal | To appear | | 2011 |
| | Abualrub M.S. and Qudah M.A.
Abstarct:
A model for insect dispersal has been considered, existence and uniqeness of solutions to the long range diffusion involving flux for such model has been shown in L(p,q) spaces. | Journal of Applied Functional Analysis (JAFA) | VOL.5, NO.4, 370-376 | | 2010 |
| | | Journal of Applied Functional Analysis (JAFA) | Vol.4, No.1, pp.107-111. | | 2009 |
| | Abualrub, Marwan Saeed
Abstract:
A quick and simple formula has been introduced to solve a special case of non-linear nth Order Euler-Cauchy ODE.
| NOTE:
This Formula is very useful for students taking Ordinary Differential Equations course. Please COPY & PASTE the following website address:
| Vol.4 , No.40 , pp.1997-2000, 2009 | | 2009 |
| | Abualrub, M.S. & Sulaiman, W.T.
Abstract:
In this Note an easy method has been introduced to prove Holder’s Inequality.
| International Mathematical Forum (IMF) Journal. You may get the full Article by clicking on:
| Vol.4 , No.40 , pp.1993-1995 | | 2009 |
| | Abualrub, Marwan Saeed
Abstract:
A model for predator-prey has been considered, existence and uniqueness to long range diffusion of such model has been shown.
| International Mathematical Forum (IMF) Journal.
You may get the full Article by clicking on:
| Vol.4 , No.40 , pp.1981-1991 | | 2009 |
| | Abualrub, M.S., Kanaan, Al-Shalabi, Nahar, and Al-Modallal
Abstract:
Our main application program walks through the implementation of the N-Gram technique for Question Answering Systems. The goal of this program is to try to find a paragraph in an Arabic document that can serve as an answer to a question. The implementation uses the Prolog Language. The overall idea is coupling an information retrieval system with a shallow approach to natural language processing. The essential first step in accomplishing this task is the categorization of texts. We mean that for search purposes the search must be guided toward only the related categories: say science, medicine, social problems? Society? history, and other vital categories. Our paper proceeds to attack this vital step, which must be handled as a separate task. We know that this task is already completed in a typical English corpus, such as, for example, the TREC-8 context. We describe the categorization of documents in detail and we also give an overview of advanced topics in this domain... The user asks a question in unstructured language but with a careful choice of words, since document categorization is based on word occurrence information. To process the user’s question we use mainly the N-gram, but to enhance the process for high occurrences success we remove some known suffixes, numbers, English words, and others, which are called Stop-Words. This process of removing words is called normalization. For simplicity we assumed that the collection of targeted documents is identified ahead of time r and stored as a text file. The rest of the words forming the question are farther processed by the body of our program, which sues N-Grams to compute the similarity between a word and other words from a paragraph of a selected document. Based on the similarity results, we may assign a value. Depending on the values for each word, a selected paragraph may be returned as an answer.
| International Journal of Applied Science and Computations | Vol.12, No.2, pp.113-127 | | 2005 |
| | | Accepted for publication in the Journal of Franklin Institute | | | 2005 |
| | | Accepted for publication in the Journal of Franklin Institute | | | 2005 |
| | | International Journal of Applied science and computations | ,Vol.12, No.3,pp.148-151 | | 2005 |
| | Abualrub, M.S., Kanaan, Al-Shalabi, and Rawashdeh
Abstract:
Information retrieval is one of the most active research areas nowadays, motivated by the need for an effective system that can satisfy the user information needs. In the heart of an information retrieval system is the ranking algorithm that orders the answer set according to a similarity measure hoping to achieve satisfactory results. Unfortunately, a powerful system is needed to achieve a satisfactory answer set for the user. Here relevance feedback strategies can aid in enhancing the results. These strategies have been tested thoroughly on English text and proved effective. In this work we implement a simple system that enables us to deal with Arabic text and we examine some of the common relevance feedback strategies that have been shown to be effective in other languages.
| Accepted for publication in the International Journal of Applied science and computations | | | 2004 |
| | Abualrub, Marwan Saeed
Abstract:
Ibn Rushd was well known in the fields of astronomy, philosophy, mathematics, etc. This article sheds the light on one of his contibutions to medicine.
| IBN RUSHD FORUM for freedom of thought Journal | 6th issue | | 2004 |
| | | Zayed University | | | 2000 |
| | Abualrub, Marwan Saeed
Abstract:
A model, which describes an epidemic, has been considered. The logistic growth and vaccination have been included in the model. An equilibrium and stability analysis has been done to the model. Then a spatial Spread has been added to the model and a traveling wave solution has been obtained.
| The International Journal of Mathematics and Mathematical Sciences (IJMMS).
You may get the full Article by clicking on:
| Vol.23, No.6, pp.425-429 | | 2000 |
| | | Qatar University | | | 1999 |
| | Abualrub, Marwan Saeed
Abstract:
A model for long range diffusion-reaction on population dynamics has been created, then conditions for the existence and uniqueness of solutions of the model have been found in L(p,q) norms.
| Documenta Mathematica (J. of German Mathematician Union).
You may get the full Article by clicking on:
| Vol. 3,pp.331-340 | German Mathematician Union | 1998 |
| | Abualrub, Marwan Saeed
Abstract:
An SIR model of an eptdemic with spatial spread is considered; an equilibrium and stability analysis has been done, and then the behavior to the traveling wave solution of the model is obtained.
| Tamkang Journal of Mathematics.
| Vol. 29, No.1,pp.65-68 | | 1998 |
| | | College of Engineering, University of Illinois at Chicago, USA | | | 1992 |
| | | | | | 1989 |
| | | University of Illinois at Chicago, USA | | | 1987-1992 |
| | | Yarmouk University | | | 1986 |
| | | Published before being promoted to the rank of Associate Professor in 1998 | | | <=1997 |