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Fulltext A profile of noise sensitivity on the health-related quality of life among young motorcyclists

Ali A, Hussain RM, Dom NC, Md Rashid RI

Noise Health, 2018 4 21;20(93):53-59.
PMID: 29676296 DOI: 10.4103/nah.NAH_14_17

Introduction: Motorcycle riders with noise sensitivity (NS) may suffer from degraded health-related quality of life (HRQOL) because they are exposed to acute noise levels on a daily basis.
Materials and Methods: This study was aimed to identify the relationship between NS and HRQOL among young motorcycle riders (undergraduate university students) aged between 19 and 25 years (n = 301) through a cross-sectional questionnaire-based study, that is, Weinstein noise sensitivity scale and the World Health Organization Quality of Life. The effects of NS on HRQOL were assessed based on gender, the years of motorcycle driving experience, and noise sensitive among groups using one-way analysis of variances with an alpha value of 0.05.
Results: The results showed no significant difference in NS between males and females. On the other hand, motorcycle driving experience for <4 years displayed a higher tendency toward NS. Moreover, a significantly (P = 0.004) decreasing trend among low, moderate, and high NS with their respective HRQOL was observed, while a high NS showed significantly (P = 0.015) lower scores on the social domain of the quality of life.
Conclusion: The overall premise of the study has statistical significance and shows that individuals with high NS tend to have degraded HRQOL compared to individuals with low NS. Furthermore, in-depth studies are required from the other demographical background of participants to investigate the motorcyclist's NS and HRQOL as an integral requirement for the rider's safety and health.

Matched MeSH terms: Noise, Transportation/adverse effects*
Biodiversity conservation should be a core value of China's Belt and Road Initiative

Lechner AM, Chan FKS, Campos-Arceiz A

Nat Ecol Evol, 2018 03;2(3):408-409.
PMID: 29335571 DOI: 10.1038/s41559-017-0452-8
Matched MeSH terms: Transportation*
Isolation, characterization, and identification of potential Diuron-degrading bacteria from surface sediments of Port Klang, Malaysia

Hanapiah M, Zulkifli SZ, Mustafa M, Mohamat-Yusuff F, Ismail A

Mar Pollut Bull, 2018 Feb;127:453-457.
PMID: 29475685 DOI: 10.1016/j.marpolbul.2017.12.015

Diuron is an alternative biocide suggested to replace organotin in formulating antifouling paints to be applied on water-going vessels hull. However, it is potentially harmful to various non-targeted marine organisms due to its toxic properties. Present study aimed to isolate, screen and identify the potential of Diuron-degrading bacteria collected from the marine sediments of Port Klang, Malaysia. Preliminary screening was conducted by exposing isolated bacteria to 430ng/L (background level), followed by 600ng/L and 1000ng/L of Diuron concentrations. Nine bacteria colonies survived the exposure of the above concentrations. However, only two strains can tolerate to survive up to 1000μg/L, which were then characterised and identified using phenotypic tests and the standard 16S rRNA molecular identification. The strains were identified as Comamonas jiangduensis SZZ 10 and Bacillus aerius SZZ 19 (GenBank accession numbers: KU942479 and KU942480, respectively). Both strains have the potential of Diuron biodegradation for future use.

Matched MeSH terms: Transportation Facilities
Fulltext The Behavioural-Based Safety System for Commuting Accident in Syarikat Bekalan Air Selangor Sdn. Bhd.

Mohamad Mahathir bin Mohamed Younos

Journal of Occupational Safety and Health, 2018;15(1):43-47.
MyJurnal

frequency of motorcycle accidents increases every year. In Syarikat Bekalan Air Selangor (SYABAS), a substantial number of motorcycle accidents occurred between the year 2009 and 2013. The increased number of accidents serves as a wake-up call to the company to come up with a behavioural-based safety system for commuting accident. The objective of this paper is to look into the effectiveness of behavioural-based system in a company. A total of one hundred and thirty (130) respondents participated in the data-collection session for this study. From this data-collection, along with accident data from the company, a number of criteria that contributes to commuting accidents in the company is obtained. At the end of this study, the behavioural-based safety system is applied, thus showing how its implementation assists in curbing the issue of commuting accidents in the company.

Matched MeSH terms: Transportation
Microbial biodiversity of Tang and Pirgal mud volcanoes and evaluation of bio-emulsifier and bio-demulsifier activities of Capnophile bacteria

Parsia Y, Sorooshian S

Data Brief, 2017 Dec;15:262-271.
PMID: 29034291 DOI: 10.1016/j.dib.2017.08.041

The data presented in this article is related to the Master thesis; entitled "Survey Aerobic Microbial Diversity Mud Volcanoes in Chabahar and Khash Ports in Southern Iran" by the first author of this article, year 2011, Islamic Azad University, Iran (reference number (Parsia, 2011) [1] of this article). This article shows microbial biodiversity and evaluates bio-emulsifier and bio-demulsifier abilities of capnophile isolates, in order to introduce a superior isolate for the Microbial Enhanced Oil Recovery (MEOR) process in the petrochemical industry.

Matched MeSH terms: Transportation Facilities
Tapered US carbon emissions during good times: what's old, what's new?

Eng YK, Wong CY

Environ Sci Pollut Res Int, 2017 Nov;24(32):25047-25060.
PMID: 28920161 DOI: 10.1007/s11356-017-0144-6

In light of a slow buildup in CO2 emissions since the recovery, this paper revisits the relationship between CO2 emissions and the US economy using a nonlinear autoregressive distributed lag model, in which the determinants are identified through an expanded real business cycle model. We find convincing evidence that CO2 emissions decline more rapidly during recessions than increase during expansions over the long run. Of all determinants considered, long-run asymmetry is fostered once vehicle miles traveled is controlled. This calls for a greater attention to public transportation development and vehicle miles traveled tax for slowing down stock buildup of CO2 emissions during good times.

Matched MeSH terms: Transportation/economics; Transportation/legislation & jurisprudence
Fulltext Validation of the dose distributions with Monte Carlo simulation for carbon ion cancer therapy

Ying, C.K., W.A. Kamil, Matsufuji, Naruhiro

Journal of Biomedical and Clinical Sciences, 2017;2(2):1-7.
MyJurnal

Charged particle therapy with carbon ions has advantages over conventional radiotherapy using x-ray beams. The application of charged particle therapy has rapidly increased over the last decades. This is due to its characteristic Bragg peak which has relatively low entrance doses and favourable doses distribution. In this research work, Geant4 based Monte Carlo simulation (MC) method has been used to calculate the radiation transportation and dose distributions in tissue-like media. The main objective of the work was to compare the Geant4 simulated depth dose distributions with experimental measurements and verify the capability of the geant4 simulation toolkit. The carbon ion beams for the therapeutic energy of 350 MeV/u and 400 MeV/u respectively were simulated, with the same settings as the experimental work carried out at the treatment room at Heavy Ion Medical Accelerator (HIMAC), National Institute of Radiological Sciences (NIRS), Chiba, Japan. The simulation results were verified with measurements data. The work was to measure the accuracy and quality of the dose distributions by Geant4 MC methods. The results show that the Bragg peak and spread out Bragg peak (SOBP) distributions in simulation has fairly good agreement with measurements.

Matched MeSH terms: Transportation
Fulltext A Thermostabilized, One-Step PCR Assay for Simultaneous Detection of Klebsiella pneumoniae and Haemophilus influenzae

Khazani NA, Noor NZ, Yean Yean C, Hasan H, Suraiya S, Mohamad S

J Trop Med, 2017;2017:7210849.
PMID: 28386286 DOI: 10.1155/2017/7210849

Klebsiella pneumoniae and Haemophilus influenzae are two common pathogens associated with respiratory tract infections. The identification of these pathogens using conventional molecular diagnostic tests requires trained personnel, cold-chain transportation, and storage-dependance, which does not render them user-friendly. The aim of this study was to develop a thermostabilized, cold-chain-free, one-step multiplex PCR for simultaneous detection of K. pneumoniae and H. influenzae. The multiplex PCR assay was designed to amplify the php gene of K. pneumoniae (202 bp) and p6 gene of H. influenzae (582 bp). In addition, the specific primer to amplify glm gene of Helicobacter pylori (105 bp) was included as an internal amplification control. Subsequently, the designed primers and all PCR reagents were thermostabilized by lyophilization. The stability of the thermostabilized PCR was evaluated using the Q(10) method. The sensitivity and specificity of performances for thermostabilized PCR were evaluated using 127 clinical isolates and were found to be 100% sensitive and specific. The thermostabilized PCR mix was found to be stable for 30 days and the Q10 accelerated stability was found to be 3.02 months. A cold-chain-free, PCR assay for easy, rapid, and simultaneous detection of K. pneumoniae and H. influenzae was successfully developed in this study.

Matched MeSH terms: Transportation
Fulltext Development of E-ACTIVETRANS for young professional planners/engineers

Bibie Sara Salleh, Jasni Md Noor, Riza Atiq O.K Rahmat, Amiruddin Ismail

Pertanika Journal of Science & Technology, 2017;25(105):211-216.
MyJurnal

This paper presents a development of an expert system to be used as an advisory in finding the solution to problems which are normally solved by human experts. The E-ACTIVETRANS is developed to help young engineers/planners in designing a new cycle lane in urban areas and also to help in reallocation of an existing roadway space for cycle lanes. This system has three sub-systems: Planning on Strategies to Shift from Passive Transportation to Active Transportation, Design on Bicycle Facilities and Examples of Successful Implementation. This paper focuses on the design of bicycle facilities whereby the prototype was developed based on data acquired from the domain experts who are involved in bicycle facility module design, as well as the initial text analysis obtained during the domain familiarisation stage. The validation of the system was performed through a comparison of knowledge content in E-ACTIVETRANS based on expert opinion. The average level of acceptance is 91 percent which validates the system and knowledge of the experts.

Matched MeSH terms: Transportation
Fulltext Transformer incipient fault identification using depolarisation current ratio index analysis technique

Mohd Aizam Talib, Nor Asiah Muhamad, Zulkurnain Abdul Malek

Pertanika Journal of Science & Technology, 2017;25(102):267-274.
MyJurnal

Preventive tests and diagnosis of in-service power transformer are important for early fault prediction and increased reliability of electricity supply. However, some existing diagnostic techniques require transformer outage before the measurement can be performed and need expert knowledge and experiences to interpret the measurement results. Other measurement techniques such as chemical analyses of insulating oil may cause significant variance to measurement results due to different practices in oil sampling, storage, handling and transportation of oil. A cost-effective measuring technique, which is simple, providing fast and an accurate measurement results, is therefore highly required. The extended application of Polarisation and Depolarisation (PDC) measurement for characterisation of different faults conditions in-service power transformer has been presented in this paper. Earlier studies on polarisation and depolarisation current of oil samples from in-service power transformer shows that depolarisation has provided significant information about the change of material properties due to faults in power transformer. In this paper, a new approach based on Depolarisation Current Ratio Index (DRI) was developed for identifying and classifying different transformer fault conditions. The DRI at time interval of 4s to 100s was analysed and the results show that DRI of depolarisation current between 5/100s and 10/100s provides higher correlation on the incipient faults in power transformer.

Matched MeSH terms: Transportation
Fulltext Assessing the cost burden of dengue infection to households in Seremban, Malaysia

Mia MS, Begum RA, Er AC, Pereira JJ

Southeast Asian J. Trop. Med. Public Health, 2016 Nov;47(6):1167-76.
PMID: 29634177

Dengue is endemic in all parts of Malaysia. However, there is limited data regarding the cost burden of this disease at household level. We aimed to
examine the cost of dengue infection at the household level in Seremban District,
Malaysia. This cost assessment can provide an insight to policy-makers about
economic impact of dengue infection in order to guide and prioritize control strategies.
The data were collected via interview. We evaluated120 previous dengue
infection patients registered at the Tuanku Ja’afar Hospital, Seremban District,
Malaysia. The average duration of dengue illness was 9.69 days. The average
household days lost was 18.7; students lost an average of 6.3 days of school and
patients and caregivers lost an average of 12.5 days of work. The mean total cost
per case of dengue infection was estimated to be USD365.16 with the indirect
cost being USD327.90 (89.8% of the total cost) and the direct cost being USD37.26
(10.2% of the total cost). Our findings suggest each episode of dengue infection
imposes a significant financial burden at the household level in Seremban District,
Malaysia; most of the burden being indirect cost. This cost needs to be factored
into the overall cost to society of dengue infection. This data can inform policy
makers when allocating resources to manage public health problems in Malaysia.

Matched MeSH terms: Transportation/economics
Fulltext A New Compact Double-Negative Miniaturized Metamaterial for Wideband Operation

Hasan MM, Faruque MRI, Islam SS, Islam MT

Materials (Basel), 2016 Oct 13;9(10).
PMID: 28773951 DOI: 10.3390/ma9100830

The aim of this paper is to introduce a compact double-negative (DNG) metamaterial that exhibits a negative refractive index (NRI) bandwidth of more than 3.6 GHz considering the frequency from 2 to 14 GHz. In this framework, two arms of the designed unit cell are split in a way that forms a Modified-Z-shape structure of the FR-4 substrate material. The finite integration technique (FIT)-based Computer Simulation Technology (CST) Microwave Studio is applied for computation, and the experimental setup for measuring the performance is performed inside two waveguide ports. Therefore, the measured data complies well with the simulated data of the unit cell at 0-degree and 90-degree rotation angles. The designed unit cell shows a negative refractive index from 3.482 to 7.096 GHz (bandwidth of 3.61 GHz), 7.876 to 10.047 GHz (bandwidth of 2.171 GHz), and 11.594 to 14 GHz (bandwidth of 2.406 GHz) in the microwave spectra. The design also exhibits almost the same wide negative refractive index bandwidth in the major region of the C-band and X-band if it is rotated 90 degrees. However, the novelty of the proposed structure lies in its effective medium ratio of more than 4, wide bandwidth, and compact size.

Matched MeSH terms: Transportation Facilities
Fulltext Geographic Information System (GIS) modeling approach to determine the fastest delivery routes

Abousaeidi M, Fauzi R, Muhamad R

Saudi J Biol Sci, 2016 Sep;23(5):555-64.
PMID: 27579003 DOI: 10.1016/j.sjbs.2015.06.004

This study involves the adoption of the Geographic Information System (GIS) modeling approach to determine the quickest routes for fresh vegetable delivery. During transport, fresh vegetables mainly deteriorate on account of temperature and delivery time. Nonetheless, little attention has been directed to transportation issues in most areas within Kuala Lumpur. In addition, perishable food normally has a short shelf life, thus timely delivery significantly affects delivery costs. Therefore, selecting efficient routes would consequently reduce the total transportation costs. The regression model is applied in this study to determine the parameters that affect route selection with respect to the fastest delivery of fresh vegetables. For the purpose of this research, ArcGIS software with network analyst extension is adopted to solve the problem of complex networks. The final output of this research is a map of quickest routes with the best delivery times based on all variables. The variables tested from regression analysis are the most effective parameters to make the flow of road networks slower. The objective is to improve the delivery services by achieving the least drive time. The main findings of this research are that Land use such as residential area and population as variables are the effective parameters on drive time.

Matched MeSH terms: Transportation
Determining efficient delivery routes in specific time-frames using Geographic Information System

Abousaeidi M, Fauzi R, Muhamad R

J Environ Biol, 2016 09;37(5 Spec No):1167-1176.
PMID: 29989749

Perishable products must be transported quickly from its production area to the markets due to the climatic conditions of Malaysia. Deterioration of fresh produce is affected by temperature and delivery time. The cost to achieve such timely delivery of perishable food can affect the revenue of suppliers and retailers. Choosing an efficient delivery route at right time can reduce the total transportation cost. However, insufficient attention has been given to transportation issues with regards to fresh food delivery of greater Kuala Lumpur. The present study involves adoption of the Geographic Information System (GIS) modelling approach to determine the fastest delivery routes for fresh products to several hypermarkets. For this purpose, ArcGIS software was adopted for solving the problem of a complex road networks. With a goal of realizing the shortest time for delivery route planning, impedance function would be integrated by taking into account the time emphasized in the study. The main findings of this study include determination of efficient routes for delivery of fresh vegetables based on minimal drive time. It has been proposed that the fastest route model for delivery of fresh products is based on comparing two time frames within a day. The final output of this research was a map of quickest routes with best delivery time based on two time frames.

Matched MeSH terms: Transportation/economics*
Analyzing the relationships between travel mode indicators and the number of passenger transport fatalities at the city level

Asadi-Shekari Z, Moeinaddini M, Sultan Z, Shah MZ, Hamzah A

Traffic Inj Prev, 2016 08 17;17(6):650-5.
PMID: 26890058 DOI: 10.1080/15389588.2015.1136739

OBJECTIVE: A number of efforts have been conducted on travel behavior and transport fatalities at the neighborhood or street level, and they have identified different factors such as roadway characteristics, personal indicators, and design indicators related to transport safety. However, only a limited number of studies have considered the relationship between travel behavior indicators and the number of transport fatalities at the city level. Therefore, this study explores this relationship and how to fill the mentioned gap in current knowledge.
METHOD: A generalized linear model (GLM) estimates the relationships between different travel mode indicators (e.g., length of motorway per inhabitants, number of motorcycles per inhabitant, percentage of daily trips on foot and by bicycle, percentage of daily trips by public transport) and the number of passenger transport fatalities. Because this city-level model is developed using data sets from different cities all over the world, the impacts of gross domestic product (GDP) are also included in the model.
CONCLUSIONS: Overall, the results imply that the percentage of daily trips by public transport, the percentage of daily trips on foot and by bicycle, and the GDP per inhabitant have negative relationships with the number of passenger transport fatalities, whereas motorway length and the number of motorcycles have positive relationships with the number of passenger transport fatalities.

Matched MeSH terms: Transportation/methods*; Transportation/statistics & numerical data*
Fulltext Virtual Planning, Control, and Machining for a Modular-Based Automated Factory Operation in an Augmented Reality Environment

Pai YS, Yap HJ, Md Dawal SZ, Ramesh S, Phoon SY

Sci Rep, 2016 06 07;6:27380.
PMID: 27271840 DOI: 10.1038/srep27380

This study presents a modular-based implementation of augmented reality to provide an immersive experience in learning or teaching the planning phase, control system, and machining parameters of a fully automated work cell. The architecture of the system consists of three code modules that can operate independently or combined to create a complete system that is able to guide engineers from the layout planning phase to the prototyping of the final product. The layout planning module determines the best possible arrangement in a layout for the placement of various machines, in this case a conveyor belt for transportation, a robot arm for pick-and-place operations, and a computer numerical control milling machine to generate the final prototype. The robotic arm module simulates the pick-and-place operation offline from the conveyor belt to a computer numerical control (CNC) machine utilising collision detection and inverse kinematics. Finally, the CNC module performs virtual machining based on the Uniform Space Decomposition method and axis aligned bounding box collision detection. The conducted case study revealed that given the situation, a semi-circle shaped arrangement is desirable, whereas the pick-and-place system and the final generated G-code produced the highest deviation of 3.83 mm and 5.8 mm respectively.

Matched MeSH terms: Transportation
Pediatric cardiothoracic program in Malaysia: a study based on the outcome of the program

Piros Kulandasamy Pillai C, Yoshida Y, Justin Lawrence P, Yamamoto E, Reyer JA, Hamajima1 N

Nagoya J Med Sci, 2016 02;78(1):9-17.
PMID: 27019524

Vulnerable communities in Malaysia have been facing issues of accessibility and availability for pediatric cardiac services for years due to long waiting times, high costs and a lack of pediatric cardiothoracic surgeons. To ease this situation, the government has allocated a certain amount of funds, introduced through the Pediatric Cardiothoracic Program (PCP), in which the patients are transported to the Narayana Health Institute of Cardiac Science (NH) in India to receive a heart operation following an eligibility check at MediAssist4U Sdn Bhd in Selangor, Malaysia, a facility appointed by the NH. This study aimed to determine the demographic incidence of congenital heart diseases of patients in this program and to evaluate the outcome of the program in association with post-operative mortality rate and the beneficial factors of the program. In this study, 241 patients who participated in this program from August 2008 to September 2012 were reviewed. Fisher's exact tests were applied to calculate p-values of categorical data. Out of 241, 11 patients were rejected because of their poor health condition for flight transportation to India, leaving 230 patients for analysis. The majority of patients were 1 to 4 years of age (57.8%), Malays (61.7%), from families of monthly household income less than RM 1,500 (86.5%) and with primary school-educated parents (86.5%). Patients could apply from any government hospital in Malaysia, but 34.8% of the patients were from the state of Johor. The region (Peninsular Malaysia and East Malaysia) of patients seeking pediatric cardiac services was significantly associated with race (p<0.001), low household income (p<0.001) and low education background of parents (p=0.004). The associations between the age group and diagnosis group (p=0.010) and between duration of hospitalization and outcome of medical management (p=0.013) were significant. Post-operative mortality rate was 1.7% (95% confidence interval, 0.5-4.4). In conclusion, the patients and the government were considered to have benefited from the PCP.

Matched MeSH terms: Transportation
Travel itinerary uncertainty and the pre-travel consultation--a pilot study

Flaherty G, Md Nor MN

J Travel Med, 2016 Jan;23(1).
PMID: 26782127 DOI: 10.1093/jtm/tav010

Risk assessment relies on the accuracy of the information provided by the traveller. A questionnaire was administered to 83 consecutive travellers attending a travel medicine clinic. The majority of travellers was uncertain about destinations within countries, transportation or type of accommodation. Most travellers were uncertain if they would be visiting malaria regions. The degree of uncertainty about itinerary potentially impacts on the ability of the travel medicine specialist to perform an adequate risk assessment, select appropriate vaccinations and prescribe malaria prophylaxis. This study reveals high levels of traveller uncertainty about their itinerary which may potentially reduce the effectiveness of their pre-travel consultation.

Matched MeSH terms: Transportation
Fulltext Yen Loan to KLIA project: socio economic impact on the Sepang and Bandar Enstek area

Asmadi Hassan

International Journal of East Asian Studies, 2016;5(1):1-13.
MyJurnal

In 1994, the Government of Malaysia received 61.518 million yen to commence Kuala Lumpur
International Airport (KLIA) project. The airport is located in the district of Sepang, Selangor, which
was originally oil palm plantations and small villages. The construction project completed and began in
used in the 1998. This paper is to evaluate the impact of Japan's ODA for Malaysia, particularly yen
loan to socioeconomic. In term of socioeconomic impact, many new cities were established such as
Bandar Baru Salak Tinggi, Bandar Baru Nilai, Banting, Bandar Enstek and Cyber Jaya. Similarly, new
housing, schools, shopping malls and other facilities such as the Sepang International Circuit and
Universiti Sains Islam Malaysia (USIM) were built. New roads connecting to the airport also completed
the development of these places. In terms of employment, previously many who depended on agriculture,
now turned to business, hospitality, services, transportation and others. In fact the huge investment
significantly affected the surrounding population, particularly the creation of modern towns, businesses
and educational centers which gave rise to various types of employment.

Matched MeSH terms: Transportation
Origin of formation water salinity variation and its geological significance in Chang 9 Stratum, Jiyuan Oilfield

Hua Yang, Jinhua Fu, Yujiang Shi, Yumei Cheng, Haitao Zhang, Zhiqiang Mao, et al.

Sains Malaysiana, 2016;45:9-18.

The origin of formation water salinity variation in Chang 9 stratum, Jiyuan oilfield, Ordos basin is studied here. 91 formation water samples show that water salinity is characterized by a wide range and a complex plane distribution. In order to find out the main cause of such distribution complexity and reveal the relationship between formation water and evolution of reservoir traps, core data, chemical analysis result of formation water and log data are analyzed from perspectives of diagenesis and tectonism. And then, their characteristics are presented as the followings. In high salinity area, tuffaceous mudstone interlayer is found growing. Besides, the condition of Na++K+ is opposite to that of Ca2+, for its rate of concentration increase slows down with total salinity accumulating. In low salinity area, while, with fracture and faults developing, some formation water of CaCl2 type turns into MgCl2, NaHCO3 or Na2SO4 type. The cause is thus proposed to be composed of two aspects. One covers tuff alteration and later diagenesis for the high salinity. To be specific, montmorillonite, developed from tuff alteration, absorbs cation selectively and then ions migrate, during which more Na++K+ get lost, while more Ca2+ reserved. Afterwards, those reserved Ca2+ get released with montmorillonite transforming to illite, which results in a loss of Na++K+ and accumulation of Ca2+. Lots of ions are released into formation water during that process and later diagenetic process, which leads to the high water salinity. The other aspect is the development of faults and fractures, through which, the upper low salinity formation water gets connected. And that is the main cause of low salinity. At last, geological significance is discussed from two angles. Firstly, tuff alteration and later diagenesis are pivotal to reservoir reconstruction; and secondly, faults and fractures play an important role in oil transportation and storage.

Matched MeSH terms: Transportation

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