Environmental Sciences Commons^™

Geophysical And Hydrogeological Studies Of Al-Foah Area, North Al Ain, United Arab Emirates (Uae), Sameh Yahyia Ali Suleiman

Theses

No abstract provided.

Environmental Risk Assessment Of Groundwater Recharge In Liwa Aquifer, Entisar Salem Al-Katheeri

Theses

The Abu Dhabi Emirate has witnessed a remarkable development in the various aspects of life during the last three decades. Such rapid development imposes a tremendous pressure on natural resources including water. Conventional water resources in the Emirate are limited. The surface water is almost absent due to the scarcity and randomness of rainfall coupled with the prevailing arid conditions and high evaporation rates. In addition, groundwater is mostly brackish and non-renewable. Over-pumping practices have resulted into a severe decline in the groundwater levels and quality. A large portion of the freshwater demands in the Abu Dhabi Emirate is covered …

Pressure Utilization In Water Transmission Pipelines In Alain Region Considering Transient Conditions, Mohamed Sultan Al Maamari

Theses

The residual pressure energy available in water transmission pipelines can be easily utilized via direct connection to the distribution system and bypassing the storage reservoirs and booster pumping stations. This thesis investigates the feasibility of bypassing a number of reservoirs and pumping stations in a small transmission system in AlAin City of United Arab Emirates. The system has a major transmission pumping station (AlAin Reception Pumping Station, or 'AARS') that hosts four fixed-speed pumps, a main 1200mm line, storage reservoirs and boosting pumps at three zones (Dahma, Markhania and Maqam), besides few other connection pipes. The system also has three …

Air Monitoring Of Some Air Pollutants In Al-Ain City Using Passive Samplers, By Ismail Abdel Karim El Haty

Theses

Air pollution monitoring is highly valuable due to effects on economics and public health. Hence, concerned authorities in different countries as well as the World Health Organization (WHO) specified the permitted standard concentration of the main pollutants. Large number of countries also have built their air quality monitoring stations, and distributed them in several sites to monitor air pollutants over the whole year. Some developed countries established an awareness environmental program to educate the public and inform them of daily pollution level to take necessary precautions.

In this study, air pollution was monitored in AI-Ain City over twelve months, through …

Chemical Stidies On Nucleic Acids Interaction With Some Antiviral Drugs: Developing Of Some New Methods For Nucleic Aeids Determination And Their Application, Islam Kamal Ali Shams

Theses

No abstract provided.

The Potential For Biomass In Ireland., Sarah J. Corcoran

Theses

It is not an understatement to say that a global crisis is approaching and at an alarming pace. It is a widely accepted fact that within the next few years, a change is going to take place. The sources we currently rely on to power our economies are already in an alarmingly depleted state, there is a necessity to find a new source or sources of energy. In addition to this, the global consequences of our past actions on the environment are also coming to the front, with climate change and ozone depletion making international headlines on an almost daily …

Anaerobic Digestion: Decision Support Software, Marco Poliafico

Theses

Ireland has significant quantities of livestock; meat exportation is a vibrant sector of the economy. Environmental management of animal wastes has therefore become an important concern. On the other hand in the last decade, national and EU policy debate has highlighted the need to investigate alternative energy: in particular energy for transport.

This study investigates the quantities of animal wastes produced in Ireland and their potential treatment using Anaerobic Digestion technologies. In 2005 Ireland had over 8 millions animals (cattle and pigs) and the annual slaughter accounted for over 4.2 million of these creatures. These animals have been responsible for …

The Potential For Ch4-Enriched Biogas As A Transport Fuel In Ireland, Niamh Power

Theses

Ireland needs a biofuel industry- to aid compliance with the Kyoto Protocol, the Biofuels Directive and to secure its energ>' supply. The overall aim of this work is to assess the potential of CH4-enriched biogas as a transport fuel in Ireland. Biogas is produced during the anaerobic digestion of biomass. This work investigates biogas production from two different feedstocks; biodegradable municipal waste and agricultural crops. To assess the potential for biogas as a transport fuel the alternatives to biogas are investigated and compared. Thus digestion and composting of biodegradable municipal waste, and biogas and ethanol production from agricultural crops …

Characterization Of Stress Ulcer Model In Mice, Abeer Hamed Rubayea Hamed Aldhaheri

Theses

Stress ulcer is a common problem in critically ill patients. Recent statistics indicated that bleeding from stress ulcer is a common cause of death in patients admitted to intensive care units. Little is known about the cellular changes that occur in the gastric mucosa during stress ulcer formation. The aim of this study is to define the changes that occur in the mouse stomach during development of stress ulcer by using different microscopy techniques.

The cold-restraint mouse model of stress ulcer was used in this study. Mice of both sexes were restrained and maintained in a cold (4°C) room for …

The Effects Of Histone H1 And Benzo[A] Pyrene On Chromatin Modifying Complexes., Zeina Salim Al Natour

Theses

Packaging of DNA into the condensed structure of chromatin presents a barrier to many cellular processes that require DNA access such as transcription and replication. This problem is solved, in part, by the action of various complexes that modify the chromatin structure so that it becomes more accessible and, therefore, a more suitable platform for these processes. ATP-dependent chromatin remodeling complexes and histone acetyltransferases are examples of many chromatin modifying complexes that work to alleviate chromatin-mediated repression. Histone H1 is an important component of chromatin which serves in both stabilizing and folding of chromatin into a higher order structure. Many …

Analytical Studies On Some Antiviral Drugs And Their Derivatives Using Nuclear Magnetic Resonance And Uv-Vis Spectrophotometry, Habiba Saleh Saif Alawi Jahri Al Yafei

Theses

Cyclodextrin chemistry involves non-covalent molecular interactions between the interacting species. The majority of these interactions are of the host-guest type. In the present work, UV-Vis spectrophotometry and ¹H-NMR studies were used to study the interaction between amantadine hydrochloride, acyclovir and their derivatives with β­cyclodextrin. Additionally, quantification of amantadine hydrochloride and acyclovir by ¹H-NMR spectroscopy were carried out.

This study is based on preparing amantadine hydrochloride and acyclovir derivatives. Anthraquinone-2-carboxylic acid and benzoyl chloride were used as derivatizing agents for amantadine hydrochloride and acyclovir, respectively. Derivatization procedure was based on nucleophilic displacement by an amino group (amantadine or acyclovir) …

Comparison Of Efficiency Of An Advanced Oxidation Process For Degrading Major Classes Of Dyes, Fatima Hasan Abdullah Ai-Hamedi

Theses

Synthetic dyes are a major part of our life. Products ranging from clothes to leather

Accessories to furniture all depend on extensive use of organic dyes.

There are numerous classes of these dyes. However, azo, anthraquinonoid,

Triarylmethane, diarylmethane, acridine, quinine, xanthane and nitro represent the major

Classes and are most commonly used dyes.

An unfortunate side effect of their widespread use is the fact that up to 12% of these dyes are

Wasted during the dyeing process, and that approximately 20% of this waste enters the environment (mostly in water supply). The effluents from these industries cause the water bodies …

Modeling Of Invasive Exotic Plants Dynamics In Arid Region Using Remote Sensing And Gis: A Case Study Of Prosopis Juliflora In The Uae, Bassam Saeed Dohai

Theses

High resolution digital aerial photographs were used to rate the change and to evaluate the woody Prosopis juliflora dynamics in northern UAE, Filayah (untreated) and Khut (treated). A time series of three different dates: 1986, 1996, and 2005 were chosen. Onscreen digitizing of plant communities was conducted using interpretative elements such as shape, tone texture, shadow and final maps were produced with acceptable accuracy. A geodatabase was built for both sites containing layers representing different dates. Statistical analysis was performed to rate the changes of the following four spatial attributes: percent cover, patch density, patch size, and mean patch shape …

Epidemiology Of Hepatitis A In Al Ain: With Emphasis On Age-Related Seroprevalence, Salwa Saeed Al Shamisi

Theses

Hepatitis A (HAV) is common worldwide, but with falling sero-prevalence in residents of developed countries is an indication of improved food and water hygiene. It is well known that the sero-prevalence of hepatitis A are highly correlated with socioeconomic status. The main objective of this study was to have base line data on the age-related sero-prevalence of HAV in Al Ain district and the possible risk factors.

Blood and a questionnaire data were obtained from 280 UAE citizens' outpatients of Tawam Hospital and 333 expatriates' inhabitants of Al Ain city. The expatriate subjects were heterogeneous coming from 24 different countries. …

Effects Of Soil Solarization On Seed Viability Of Serious Weeds Of Crops In The Uae, Fatema Khalil Al-Hammadi

Theses

The efficacy of solarization in weed control under field conditions of the united Arabs Emirates (UAE} was evaluated by conducting field experiments in a farm near Al-Ain. The soil of the farm was artificially infested with seeds of the following weeds: Amaranthus viridus, A. hybridus, Cenchrus ciliaris, Chenopodium murale, Launea mucronata, Malva parviflora, Capsella bursa-pastoris, Echinochloa colona, Portulaca oleracea, and Melilotus indica. The soil was plowed, rotovated to provide a smooth surface and divided into 12 raised plots, 10 x 1 m each: seven were solarized and five non-solarized. Soils …

Assessment Of Marine And Coastal Pollution A Long The Eastern Coast, United Arab Emirates (Uae), Shaheera Ali Juma Ali Bahwan

Theses

The present study aims to quantifying and assessing the orgasmic and

Inorganic pollutants extents along eastern side of the United Arab

Emirates UAE offshore on the Gulf of Oman, which consist of Fujairah,

Khor Fakkan and Kalba. Rapid development and the highly usage of the

coastal region for industrial activities, sewage disposal and marine

transportation has led to obvious changes in sediments quality of the

marine environment. Twelve coastal sampling stations were selected to

cover the maximum area of the eastern side, three sampling stations were

selected from marine sediments and six sampling collected from spilled

oil near investigated area. …

Assessment Of Natural And Anthropogenic Environmental Effects In The Costal Areas Between Abu Dhabi And Dubai – Application Of Remote Sensing, Sultan Mohamed A. Karrani

Theses

The present work represents an attempt to detect changes induced by both natural and anthropogenic activities to the coastal area extending between the cities of Abu Dhabi and Dubai, United Arab Emirates. This area is dominated by islands, bars, tidal channels and embayment regimes and flanked by coastal sabkhas that give way to the great sand dunes, which represent an extension of the Empty Quarter desert.

The area is also characterized by the existence of many aquatic systems such as coral reefs and the oolitic shoals around Abu Dhabi city. It was the site of many human activities in the …