Journal articles: 'Gulf Region (Tex.)' – Grafiati (2024)

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The species composition and distribution patterns of Nereididae (Annelida: Polychaeta) from the north coast of Gulf of Oman were investigated. Specimens were collected from ten intertidal sites along the Iranian coast, including mangrove, muddy, boulder and rocky, coral and sandy-rocky shore habitats. Eight species of Nereididae were identified: Leonnates decipiens Fauvel, Nereis coutieri Gravier, Neanthes deplanata Mohammad, Perinereis nuntia (Savigny), Perinereis heterodonta Gravier, Perinereis cultrifera (Grube), Perinereis horsti Gravier and Pseudonereis trimaculata Horst. The eight species are redescribed and two Perinereis species, P. heterodonta and P. horsti, currently junior synonyms of P. nuntia and P. vancaurica (Ehlers) respectively, are raised from synonymy. All reported species are new records for the Gulf of Oman, bringing the known total number of species in the family to twelve; P. trimaculata is also a new record for the Arabian Sea–Arabian Gulf region. Nereidid diversity within the region is comparable to other Indo-Pacific coastal regions, and higher than other parts of the world.

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The purpose of this study was to estimate the economic impacts of outdoor recreation activity (specifically, sport fishing, hunting, picnicking, swimming, camping, pleasure boating and sightseeing) on the economies of the Texas Gulf Coast region and the state of Texas in the form of output, employment, income, and state and local tax revenues. The statewide Texas Gulf Coast economic impacts were estimated using the statewide expenditure data for the entire Texas Gulf Coast collected for this study and the 1986 Texas Input-Output Model developed for this study. The results of this analysis indicated that the total output impact during 1986 amounted to $1.19 billion for the Texas Gulf Coast and $1.91 billion for the state. The results also show that 59% of these impacts resulted from fishing-related travel to this area.

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This study is the first inventory of ascidians from shallow waters (0–25 m) of coastal and reef habitats in the southern Gulf of Mexico where ascidian diversity is poorly known. Sampled environments in 14 locations (38 sites) with 134 samples collected from 2015 to 2017 included coral reefs, coastal lagoons, mangroves, seagrass, ports, and artificial platforms. The 31 identified species comprise 19 genera and 13 families. Ten species are newly reported in the Gulf of Mexico:AscidiapanamensisBonnet & Rocha, 2011;Ecteinascidiastyeloides(Traustedt, 1882);CystodytesroseolusHartmeyer, 1912; Eudistomaaff.amanitum Paiva & Rocha, 2018;EudistomarecifenseMillar, 1977;EuherdmaniafasciculataMonniot, 1983; Euherdmaniaaff.vitrea Millar, 1961;Polycarpacartilaginea(Sluiter, 1885);Botrylloidesmagnicoecum(Hartmeyer, 1912) andDidemnumgranulatumTokioka, 1954. Two new species will be described separately (Clavelinasp. andPyurasp.). This study provides the first records for 26 species ascidians for the region as well as describes increased distributions of ten Atlantic species. Thus, our data provide a starting point for future ecological, experimental and taxonomic studies of ascidians of the Gulf of Mexico.

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AbstractA total of 299 fish belonging to ten teleost species were studied in Iranian waters at the north-eastern coast of the Persian Gulf for larval trypanorhynch cestode infection. The following trypanorhynch species were identified: Callitetrarhynchus gracilis Pintner, 1931, Pseudogilquinia thomasi (Palm, 2000), Pterobothrium lesteri Campbell and Beveridge, 1996 and Pseudolacistorhynchus shipleyi (Southwell, 1929). The most abundant parasite was C. gracilis which was isolated from seven teleost species. The highest prevalence (62.9%) and dominance (0.98) were demonstrated for P. thomasi with a maximum intensity of 22 in Indian halibut Psettodes erumei. Collections of P. lesteri and P. shipleyi from the Persian Gulf represent new locality records, thus extending the known range of distribution for both species. Four new host records are established. The recorded combination of trypanorhynch species and the established host range correspond to other regions, such as off the Brazilian coast. In terms of species distribution, the north-western part of the Indian Ocean, together with the Gulf of Bengal and the Indonesian archipelago, share the same species, resulting from connected water bodies. All trypanorhynch species were isolated from the body cavity, except for P. thomasi which was recorded from the musculature of P. erumei. Relatively high intensities of infection in P. erumei may be of public health concern in the region, necessitating the consumption of well-cooked fish products.

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Abstract Silva, A., Skagen, D. W., Uriarte, A., Massé, J., Santos, M. B., Marques, V., Carrera, P., Beillois, P., Pestana, G., Porteiro, C., and Stratoudakis, Y. 2009. Geographic variability of sardine dynamics in the Iberian Biscay region. – ICES Journal of Marine Science, 66: 495–508. The spatio-temporal variability in the distribution, demographic structure, recruitment, and mortality of sardine within the Iberian Biscay region is described using area-disaggregated data collected during acoustic surveys and at ports since the mid-1980s. Multiple regression models were used to describe log numbers-at-age obtained annually in ten areas covered by three surveys to test the existence of geographic differences in selectivity-at-age, recruitment strength, and mortality and to infer plausible migration routes. Within Iberian waters, sardine biomass was mainly concentrated off western Portugal and the Gulf of Cadiz. In the Bay of Biscay, biomass levels were comparable with those off western Portugal. Recruitment was localized in a few areas (northern Portugal and the Gulf of Cadiz and Bay of Biscay), intermingling with areas dominated by older fish. Recruitment was generally asynchronous among areas, although some recruitment peaks were noticeable across wider regions. Spatial patterns related to strong and weak year classes and year-class slopes were also noted. Clearly distinct dynamics were not evidenced within the Atlanto–Iberian sardine stock area, but the validity of the northern limit was questioned by the connection between sardine dynamics in the Bay of Biscay and the Cantabrian Sea. The results provided some evidence consistent with the hypothesis of sardine movement from recruiting grounds to areas farther along the coast as they grow.

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The littorinid genus Echinolittorina is of global distribution on rocky shores in topical latitudes, but in terms of the number of sympatric species and of phylogenetic diversity the genus reaches is greatest richness in the western Atlantic biogeographic region. The systematics of Echinolittorina in the western Atlantic have been controversial, owing to both intraspecific variability and convergence in traditional taxonomic characters of the shell and radula, and also to lack of anatomical descriptions. As a result of recent molecular studies the species can now be defined. Detailed morphological descriptions are provided here for the ten known living species, including details of shell, operculum, pigmentation of headfoot, reproductive anatomy, spermatozoa, egg capsules and radulae. Diagnoses include reference to mitochondrial gene sequences (COI). A key is based on shells, opercula, penial shapes and geographical distributions, and includes all other littorinid species (members of genera Littoraria, Cenchritis and Tectarius) found in the western Atlantic region, to avoid confusion. Based on molecular phylogenetic analysis, the ten species are assigned to four subgenera: Fossarilittorina, Lineolittorina n. subgen., Amerolittorina n. subgen. and Echinolittorina. One new species is described: E. placida n. sp. from the Gulf of Mexico. One name change is proposed: E. jamaicensis (C.B. Adams, 1850) replaces Nodilittorina riisei (Mörch, 1876), N. glaucocincta (Mörch, 1876) and N. mordax Bandel & Kadolsky, 1982. It is confirmed that the forms previously discriminated as Nodilittorina tuberculata (Menke, 1828) and N. dilatata (d’Orbigny, 1842) belong to a single species, E. tuberculata (Menke, 1828). These five ‘species’ of ‘Nodilittorina’ were diagnosed solely by striking differences in their radulae in a previous taxonomic study, but it is here shown that this variation is intraspecific, although the cause is unknown. New COI sequences are included in a phylogenetic analysis to support this conclusion. Full synonymies are given for all taxa, and the taxonomic, evolutionary and ecological literature reviewed. Distribution maps are based on examination of 1091 samples and on reliable literature records. The biogeography of the western Atlantic marine region is discussed, based on the ten distribution maps, emphasizing the mutual isolation of the Gulf of Mexico, Caribbean Sea, Brazilian mainland and Brazilian oceanic archipelagos, and the significance of the contrast between oceanic and continental distribution patterns. In E. mespillum there is a conspicuous polymorphism of shell colour with a geographical pattern, and mimicry is suggested. The natural distribution of E. placida n. sp. is on the sparse rocky outcrops of the southern Gulf of Mexico, but following the widespread construction of sea walls along the sedimentary coastline of the Gulf since the late nineteenth century, this species has spread for 4500 km around the Gulf, to Florida and as far as North Carolina in about 100 years. Occasional black shells are found within populations of normally variegated Echinolittorina species, which has not been recorded in congeners from other oceans.

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Purpose The purpose of this paper is to develop and present a working model for consortia of academic libraries in Saudi Arabia. It is based on the American model of consortia operating at all levels, including local, state and region. The American consortia are highly developed, functional and have a large membership of small-, medium- and large-size libraries and are good models to be followed by other countries. Design/methodology/approach An email survey questionnaire (with seven closed-ended and four open-ended questions) was distributed to ten selected US academic library consortia to obtain relevant information on various operational facets and policies they have adopted. Findings The survey results will provide useful information to help develop a workable consortia model for Saudi Arabia. If implemented successfully, the Saudi model is expected to motivate other library groups at provincial and national levels in Saudi Arabia and regional level in the Arabian Gulf Region. Research limitations/implications The survey is aimed at gathering relevant information about the experiences of ten selected US academic libraries as members of various consortia. Originality/value While the project will start with academic libraries only, it may open membership for other libraries not only in Saudi Arabia but also for libraries of the Gulf Cooperation Council countries. The other scenario could be that instead of joining Saudi consortia, the libraries may decide to develop their own consortia.

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Maritime piracy is an ancient crime which have still not disappeared and, since the mid 90s, we have been living a new golden age of piracy. According to the 2017 annual report of the International Maritime Bureau, 180 piratical incidents happened in that year. Although, piracy arised almost three decades ago, the international community only started dealing with it ten years ago on a dayto-day basis. That is why we can state that it became a ‘real’ international crime in this century. Piracy has always been linked with the Carribean – and it has turned up there again – but there are new hotspots, as well. In the past decade the region of the Gulf of Aden (and mainly the coast of Somalia) was the infamous one, despite the fact that the most reported attacks have been happening in Southeast Asia since the 90s. The Gulf of Guinea is also dangerous and the most violent piratical attacks happen there. Pirates endanger the most important sea trade line all over the world. Last year, according to the Oceans Beyond Piracy foundation, they caused more than $10 billion total cost for the economy in all endangered regions. And, of course, it threatens the lives of the seafarers, as well: according to this report, 19 of them were killed during the attacks. It is clear that the international community has to fight piracy. There are several joint patrols in all of the regions mentioned above, but as effective they can be, they are only symptomatic treatment of the problem. The states have to deal with the criminal accountability of pirates to create a real restraining force to prevent them from committing the crime again.

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The study investigates the hierarchical uncertainty of multi-ensemble hydroclimate projections for the Southern Hills-Gulf region, USA, considering emission pathways and a global climate model (GCM) as two main sources of uncertainty. Forty projections of downscaled daily air temperature and precipitation from 2010 to 2099 under four emission pathways and ten CMIP5 GCMs are adopted for hydroclimate modeling via the HELP3 hydrologic model. This study focuses on evapotranspiration (ET), surface runoff, and groundwater recharge projections in this century. Climate projection uncertainty is characterized by the hierarchical Bayesian model averaging (HBMA) method, which segregates emission pathway uncertainty and climate model uncertainty. HBMA is able to derive ensemble means and standard deviations, arising from individual uncertainty sources, for ET, runoff, and recharge. The model results show that future recharge in the Southern Hills-Gulf region is more sensitive to different climate projections and exhibits higher variability than ET and runoff. Overall, ET is likely to increase and runoff is likely to decrease in this century given the current emission path scenarios. Runoff are predicted to have an 18% to 20% decrease and ET is predicted to have around a 3% increase throughout the century. Groundwater recharge is likely to increase in this century with a decreasing trend. Recharge would increase about 13% in the early century and will have only a 3% increase in the late century. All hydrological projections have increasing uncertainty towards the end of the century. The HBMA result suggests that the GCM uncertainty dominates the overall hydrological projection uncertainty in the early century and the mid-century. The emission pathway uncertainty becomes important in the late century.

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Purpose The purpose of this paper is to gain insight into how well past reforms have performed against revenue, equity and efficiency benchmarks of tax policymaking, so that the direction of future reform of tax system might be determined. It also presents a comparative analysis of taxation and revenue trends in the Middle East and North Africa (MENA) region over the data set period 1990-2012. Design/methodology/approach By overviewing the development and relative significance of resource revenues, allocating non-resource taxes and examining the tax policies of constituent countries, this paper presents a comparative review of taxation and revenue trends in the MENA region. Findings Findings showed, on average, a slight decline in non-resource revenues against the significant rise in income from resources. The analysis of government revenues and current taxation structures provide insight into how prior reforms have performed against the standard measures of tax policy-making (i.e. revenue, equity and efficiency) and directions for change leading to the establishment of simple tax systems. The study observes regional differences, such as the higher tax and revenues of the Maghreb sub-region over the Mashreq, except for value-added tax, where low rates were associated with equal or greater revenue. Similarities were also found, including the partial compensation by income taxes (not indirect taxes) for revenue lost through trade liberalization. The challenges of tax reform are found to vary across countries and opportunities for improving equity and reducing the complexity of tax systems across the region are identified. Research limitations/implications Reforms in all tax systems could have major implications for the country, employment, earnings and tax revenues; but recommendations would require political value judgments and government decisions. The study suggests eliminating the current tax system, thereby replacing one of the more distortionary taxes in the current system with a neutral and efficient tax. Originality/value The paper signals the need, even of the oil-rich states of the Gulf Cooperation Council, for governments to build tax systems capable of capturing and spending revenues effectively into the future.

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One in six people worldwide do not have access to safe freshwater. The world has been divided into 3 areas: Scarce, Stressed and Sufficiently available potable water by World Health Organization (WHO). The countries around Persian Gulf in the Middle East are in Scarcity area. Desalination solution has been proved as the primary response to water scarcity. This region ranks among the world’s top ten desalinating countries, namely, in descending order: Saudi Arabia, United Arab Emirates, Kuwait and Qatar. There are some key parameters in selecting different technologies for desalination, including temperature. The temperature can be quite low in some countries such as Australia, while it is rather high in Persian Gulf. Total dissolved Solid (TDS) which is representative of salinity is a critical factor, similar to temperature, in selecting the desalination technology. The value encountered in Persian Gulf is extremely high as compared to the normal range of sea water salinity. The three principal desalination technologies used all over the world are multi-stage flash (MSF), reverse osmosis (RO), and multi-effect distillation (MED). This study looks at the different aspects of development such as costs, capabilities and state-of-the-art technologies. A comparative analysis of these technologies is presented and the best technology from financial and technical point of view is introduced and discussed.

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Improved access to field survey infrastructure throughout South-East Asia has allowed for a greater intensity of biodiversity surveys than ever before. The rocky bottoms and coral reef habitats across the region have been shown to support some of the highest sea slug biodiversity on the planet, with ever increasing records. During the past ten years, intensive SCUBA surveys have been carried out at Koh Tao, in the Gulf of Thailand, which have yielded remarkable findings in sea slug biology and ecology. In this work a brief history of sea slug biodiversity research from Thailand is covered and a complete inventory of sea slugs from Koh Tao, Gulf of Thailand is provided. This inventory is based on surveys from 2012 to 2020, with previously unreported findings since 2016. Habitat specificity and species-specific ecology are reported where available with a focused comparison of coral reef habitats and deeper soft-sediment habitats. The findings contribute 90 new species records for Thai waters (92 for the Gulf of Thailand) and report a remarkable consistency in the proportional diversity found to be exclusive to one habitat type or another. Additionally, taxonomic remarks are provided for species documented from Koh Tao that have not been discussed in past literature from Thailand, and a summary of previous records in the Indo-West Pacific is given.

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Extensive comparative characterization was performed to explore halophytes native to the Persian (Arabian) Gulf. Ten species collected from the Western region of Abu Dhabi, United Arab Emirates (UAE) were analyzed for their lignocellulosic components as well as for ash and extractives content. It was found that the species significantly differ in the content of carbohydrates, lignin, total ash-free extractives and total ash. The total ash content was found to negatively influence the content of carbohydrates. Based on the characteristics, it is concluded that Cornulaca aucheri is the most attractive as a source of carbohydrates, and Tetraena (Zygophyllum) qatarensis has the potential to produce the highest yield of the extractives fraction.

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A comparative analysis of geodetic versus seismic moment-rate estimations makes it possible to distinguish between seismic and aseismic deformation, define the style of deformation, and also to reveal potential seismic gaps. This analysis has been performed for Egypt where the present-day tectonics and seismicity result from the long-lasting interaction between the Nubian, Eurasian, and Arabian plates. The data used comprises all available geological and tectonic information, an updated Poissonian earthquake catalog (2200 B.C.–2020 A.D.) including historical and instrumental datasets, a focal-mechanism solutions catalog (1951–2019), and crustal geodetic strains from Global Navigation Satellite System (GNSS) data. The studied region was divided into ten (EG-01 to EG-10) crustal seismic sources based mainly on seismicity, focal mechanisms, and geodetic strain characteristics. The delimited seismic sources cover the Gulf of Aqaba–Dead Sea Transform Fault system, the Gulf of Suez–Red Sea Rift, besides some potential seismic active regions along the Nile River and its delta. For each seismic source, the estimation of seismic and geodetic moment-rates has been performed. Although the obtained results cannot be considered to be definitive, among the delimited sources, four of them (EG-05, EG-06, EG-08, and EG-10) are characterized by low seismic-geodetic moment-rate ratios (<20%), reflecting a prevailing aseismic behavior. Intermediate moment-rate ratios (from 20% to 60%) have been obtained in four additional zones (EG-01, EG-04, EG-07, and EG-09), evidencing how the seismicity accounts for a minor to a moderate fraction of the total deformational budget. In the other two sources (EG-02 and EG-03), high seismic-geodetic moment-rates ratios (>60%) have been observed, reflecting a fully seismic deformation.

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Abstract The relationship between parody and copyright law has not been discussed in the copyright laws of the Gulf Cooperation Council (GCC) or in Arab states in general. Nevertheless, in the past ten years, there has been a remarkable increase in parody shows and programmes in the region, triggering the question of copyright infringement. This article therefore examines the position of parody in the copyright laws of GCC states. It considers protection of parody − as an expressive tool − under the principle of freedom of speech. As no explicit statutory or judicial guidance in relation to parody in the current national copyright laws of GCC states is found, this article argues that parody should be explicitly recognized in the copyright laws of GCC states.

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Abstract In order to raise global profiles of universities, governments around the world have pushed universities to offer English medium instruction (EMI) courses. While research examining the attitudes toward EMI has been conducted in various countries, these studies generally look at a single university and rarely examine attitudes between countries or regions. In order to investigate attitudes from a macro perspective, this study used a systematic literature review method to synthesize findings on attitudes toward EMI in East Asia and the Gulf. The review was guided by the following research questions: (1) What are the attitudes toward EMI in countries in the Gulf and East Asia? and (2) What are the similarities/differences between countries and what factors can be attributed to these? Attitude scores were calculated for twenty studies from ten countries, and the studies were coded by common themes affecting EMI attitudes. Results show that factors affecting attitudes include language and content issues, choice of medium of instruction, instructor quality, motivation to learn English, and deficit views of the L1. As a result of the findings, it is suggested that governments and universities review their EMI policies in order to ensure education quality and maintain the status of local languages.

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This study analyzes and compares the competitive advantage of taxation for six members of the Gulf Co-operation Council (GCC): Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, and the United Arab Emirates. The GCC countries enjoy one of the least demanding tax systems in the world. The average total tax rate for the entire Middle East region is 23.6%, which is much less than the global average of 44.7%. Thus, the taxation structure and system of the GCC nations is uncomplicated when compared to rest of the world. Moreover, the GCC nations depend heavily on indirect taxes and revenue from energy exports, rather than internally generated funds. Though this system has its advantages, it may become a cause of concern for authorities in the future as taxation can influence the overall growth in different dimensions. Thus, this study further explores the need for an effective taxation policy to support future performance of the GCC member nations.

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We describe the baseline characteristics, management, and outcomes of acute coronary syndrome (ACS) in patients of age ≤40 in the Gulf region of the Middle East. We studied 8176 hospitalized patients (≤40 years) with ACS. Ten percent (805) of the recruited patients were ≤40 years. The mean age was 37 years and 89% were males. The prevalence of smoking and diabetes in the young patients was high (58% and 21%, respectively). The most common ACS was ST elevation myocardial infarction. Younger patients were more aggressively treated with more frequent use of glycoprotein inhibitors, thrombolytics, and primary percutaneous coronary intervention. They had less in-hospital heart failure, left ventricular dysfunction, shock, stroke, and low rate of in-hospital mortality (1%). Measures to combat the rising prevalence of diabetes and smoking are needed.

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Sandy coasts are specific habitats of high ecological significance for many species of shorebirds. The Gulf of Catania, in the Eastern coast of Sicily, is considered one of the most important sandy coastal areas of the region for the wintering of different species of Charadriidae and Scolopacidae, also due to the presence of River Simeto’s mouth and other freshwater streams. Since the area has been subject to many changes in the last few decades and recent data were not available, a ten-year monitoring of the wintering shorebird community has been carried out, from January 2011 to January 2020, to understand its current ecological role and to update the knowledge about numbers and trends of Sicilian wintering shorebirds along the coast. A total of 3,171 individuals and 16 different species were observed, including a considerable amount of individuals of Calidris alba and Charadrius alexandrinus, despite the latter showed an 80% decrease in number in the last 20 years in the area. For each species, maximum numbers observed per winter and related five-year averages, estimates, IKA (Index of Abundance per Kilometre) and percentages in relation to the national wintering population have been reported. Furthermore, data about species associations were collected and analysed. This survey shows how the ecological value of River Simeto’s mouth has decreased considerably in the last decades in favour of other locations, such as the mouth of Canale Arci, where almost 50% of the birds were observed.

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Common bottlenose dolphins ( Tursiops truncatus ) inhabit bays, sounds and estuaries across the Gulf of Mexico. Following the Deepwater Horizon oil spill, studies were initiated to assess potential effects on these ecologically important apex predators. A previous study reported disease conditions, including lung disease and impaired stress response, for 32 dolphins that were temporarily captured and given health assessments in Barataria Bay, Louisiana, USA. Ten of the sampled dolphins were determined to be pregnant, with expected due dates the following spring or summer. Here, we report findings after 47 months of follow-up monitoring of those sampled dolphins. Only 20% (95% CI: 2.50–55.6%) of the pregnant dolphins produced viable calves, as compared with a previously reported pregnancy success rate of 83% in a reference population. Fifty-seven per cent of pregnant females that did not successfully produce a calf had been previously diagnosed with moderate–severe lung disease. In addition, the estimated annual survival rate of the sampled cohort was low (86.8%, 95% CI: 80.0–92.7%) as compared with survival rates of 95.1% and 96.2% from two other previously studied bottlenose dolphin populations. Our findings confirm low reproductive success and high mortality in dolphins from a heavily oiled estuary when compared with other populations. Follow-up studies are needed to better understand the potential recovery of dolphins in Barataria Bay and, by extension, other Gulf coastal regions impacted by the spill.

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ABSTRACT Eleven Bacillus isolates from the surface and subsurface waters of the Gulf of Mexico were examined for their capacity to sporulate and harbor prophages. Occurrence of sporulation in each isolate was assessed through decoyinine induction, and putative lysogens were identified by prophage induction by mitomycin C treatment. No obvious correlation between ability to sporulate and prophage induction was found. Four strains that contained inducible virus-like particles (VLPs) were shown to sporulate. Four strains did not produce spores upon induction by decoyinine but contained inducible VLPs. Two of the strains did not produce virus-like particles or sporulate significantly upon induction. Isolate B14905 had a high level of virus-like particle production and a high occurrence of sporulation and was further examined by genomic sequencing in an attempt to shed light on the relationship between sporulation and lysogeny. In silico analysis of the B14905 genome revealed four prophage-like regions, one of which was independently sequenced from a mitomycin C-induced lysate. Based on PCR and transmission electron microscopy (TEM) analysis of an induced phage lysate, one is a noninducible phage remnant, one may be a defective phage-like bacteriocin, and two were inducible prophages. One of the inducible phages contained four putative transcriptional regulators, one of which was a SinR-like regulator that may be involved in the regulation of host sporulation. Isolates that both possess the capacity to sporulate and contain temperate phage may be well adapted for survival in the oligotrophic ocean.

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An analysis of a three-member ensemble of initialized coupled simulations with the MPI-ESM-LR covering the period 1901–2010 shows that Atlantic northward ocean heat transport (OHT) at 50°N influences surface temperature variability in the North Atlantic region for several years. Three to ten years after strong OHT phases at 50°N, a characteristic pattern of sea surface temperature (SST) anomalies emerges: warm anomalies are found in the North Atlantic and cold anomalies emerge in the Gulf Stream region. This pattern originates from persistent upper-ocean heat content anomalies that originate from southward-propagating OHT anomalies in the North Atlantic. Interannual-to-decadal SST predictability of yearly initialized hindcasts is linked to this SST pattern: when ocean heat transport at 50°N is strong at the initialization of a hindcast, SST anomaly correlation coefficients in the northeast Atlantic at lead years 2–9 are significantly higher than when the ocean heat transport at 50°N is weak at initialization. Surface heat fluxes that mask the predictable low-frequency oceanic variability that influences SSTs in the northwest Atlantic after strong OHT phases, and in the northwest and northeast Atlantic after weak OHT phases at 50°N lead to zonally asymmetrically predictable SSTs 7–9 years ahead. This study shows that the interannual-to-decadal predictability of North Atlantic SSTs depends strongly on the strength of subpolar ocean heat transport at the start of a prediction, indicating that physical mechanisms need to be taken into account for actual temperature predictions.

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Gulf War Illness (GWI) is a debilitating condition characterized by dysfunction of cognition, pain, fatigue, sleep, and diverse somatic symptoms with no known underlying pathology. As such, uncovering objective biomarkers such as differential regions of activity within a Functional Magnetic Resonance Imaging (fMRI) scan is important to enhance validity of the criteria for diagnosis. Symptoms are exacerbated by mild activity, and exertional exhaustion is a key complaint amongst sufferers. We modeled this exertional exhaustion by having GWI (n = 80) and sedentary control (n = 31) subjects perform submaximal exercise stress tests on two consecutive days. Cognitive differences were assessed by comparing fMRI scans performed during 2-Back working memory tasks before and after the exercise. Machine learning algorithms were used to identify differences in brain activation patterns between the two groups on Day 1 (before exercise) and Day 2 (after exercise). The numbers of voxels with t > 3.17 (corresponding to p < 0.001 uncorrected) were determined for brain regions defined by the Automated Anatomical Labeling (AAL) atlas. Data were divided 70:30 into training and test sets. Recursive feature selection identified twenty-nine regions of interest (ROIs) that significantly distinguished GWI from control on Day 1 and 28 ROIs on Day 2. Ten regions were present in both models between the two days, including right anterior insula, orbital frontal cortex, thalamus, bilateral temporal poles, and left supramarginal gyrus and cerebellar Crus 1. The models had 70% accuracy before exercise on Day 1 and 85% accuracy after exercise on Day 2, indicating the logistic regression model significantly differentiated subjects with GWI from the sedentary control group. Exercise caused changes in these patterns that may indicate the cognitive differences caused by exertional exhaustion. A second set of predictive models was able to classify previously identified GWI exercise subgroups START, STOPP, and POTS for both Days 1 and Days 2 with 67% and 69% accuracy respectively. This study was the first of its kind to differentiate GWI and the three sub-phenotypes START, STOPP, and POTS from a sedentary control using a logistic regression estimation method.

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Sub-superficial sediments have been collected from the Thermaikos Gulf, located in the NW Aegean Sea, in order to determine sedimentation rates using vertical distributions of 137Cs and 210Pb. In addition measurements of the characteristic radionuclides of the 238U and 232Th natural series has also been performed to better understand the transport and the sedimentation process in a marine environment, which is strongly influenced by the main North Greece rivers. The sedimentation rates of the five selected cores using the two methods were consistent and varied from 0.20 ± 0.01 till 0.30 ± 0.02 cm y-1. The mean sedimentation rates derived with both methods are enhanced during the last ten years compared to previous values at the studied region by one order of magnitude, due to human implications. The activity concentration of the 238U decay products does not exhibit variation along the depth. The activities of 226Ra are enhanced (~30 %) compared to the activities of radon daughters (214Pb, 214Bi) especially at the surface layer. The results of the correlation between 232Th decay products and 40K indicate that there is positive correlation between their averaged activities. The good proportionality between 232Th and 40K concentrations may be attributed to the fact that thorium is a particularly insoluble element in water.

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The last ten years have shown that Climate Change (CC) is a major global issue to attend to. The integration of its effects into coastal impact assessments and adaptation plans has gained great attention and interest, focused on avoiding or minimizing human lives and asset losses. Future scenarios of mean sea level rises and wave energy increase rates have then been computed, but downscaling still remains necessary to assess the possible local effects in small areas. In this context, the effects of CC on the wave climate in the Gulf of California (GC), Mexico, have received little attention, and no previous studies have tackled the long-term trend of wave climate at a regional scale. In this paper, the long-term trends of the wave height, wave period and wave energy in the GC were thus investigated, using the fifth-generation climate reanalysis dataset (ERA5). The long-term shoreline evolution was also examined from historical Landsat images, so as to identify erosional hotspots where intervention can be prioritized. The results indicate that both the mean and extreme wave regimes in the GC are getting more energetic and that two-thirds of the coast is suffering chronic erosion. A discrepancy between the trends of the wave period and wave height in some regions of the Gulf was also found. Finally, the importance of natural processes, human activity and CC in the shoreline change is highlighted, while addressing the need for future permanent field observations and studies in the GC.

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PurposeThis paper aims to investigate the influence of company-specific attributes on capital structure decisions of Islamic banks (IBs) in Gulf Cooperation council (GCC) countries during the period 2009-2011.Design/methodology/approachTo improve the econometric estimates’ efficiency, the paper uses the generalized least square (GLS) regression model to increase the levels of freedom and reduce collinearity.FindingsThe empirical results indicate that bank size, liquidity and corporate age are positively associated with the leverage ratio of GCC IBs, supporting the trade-off theory. Inconsistent with theoretical predictions, it is found that the profitability, tangibility and growth have positive insignificant relationship with the level of leverage, suggesting these determinants are not important in capital structure decisions. Furthermore, gross domestic product (GDP) and non-debt tax shield have negative effects on the leverage ratio and significant for GDP.Research limitations/implicationsOverall, the evidence provided in the study highlights the significance of company-specific characteristics in determining and affecting the capital structure decisions of IBs in GCC countries. It is useful to use these variables in the analysis of IBs’ capital structure in the GCC region before the financial crisis in 2007. One limitation for this study is that the sample is restricted to only the Islamic banking sector. Future research could include all Islamic financial institutions (IFIs) operating within the Gulf region. Second, the study only concentrates on GCC countries to the neglect of other countries. Finally, the study controls for the country level only and does not account for firm factors. Future research could consider all these limitations. Another possible avenue is by examining other variables, such as corporate governance mechanisms.Originality/valueDespite that most previous studies investigated the determinants of the capital structure of financial conventional industries, research on Islamic banking is almost non-existent. Moreover, the extant literature on Islamic finance has been theoretically explored, and the empirical research regarding capital structure is still in the infancy stage. Accordingly, it is evident that based on the Islamic trade-off perspective, theoretical hypotheses and empirical findings provide a novel addition to the capital structure theory for IFIs.

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Purpose While some work on how employee perceptions of corporate social responsibility (CSR) affect behavioral outcomes has been examined, less work simultaneously investigates whether employee perceptions of internal and external CSR influence the behavioral outcomes of incumbent employees working in organizations. The purpose of this paper is to draw on social exchange theory arguments to investigate the direct and indirect effects of internal and external CSR practices on employee organizational citizenship behavior (OCB) and intention to quit. Design/methodology/approach An empirical study was conducted among 664 employees working in the banking sector in Kuwait. Structural equation modeling techniques were used to test the suggested hypotheses. Findings The results reveal that both internal and external CSR activities are positively related to OCB and OCB is negatively associated with intention to quit. Results also show that distributive justice moderates the relationship between OCB and intention to quit. Practical implications These findings extend the literature on CSR and demonstrate that organizations engaged in CSR activities (internal and external) can enhance citizenship behaviors among employees and thereby increase retention rates. Originality/value This research demonstrates the importance of CSR activities in tax-free countries, particularly, in the Gulf Cooperation Council (GCC) region. Since employees in GCC countries are increasingly concerned about the CSR behaviors of organizations, CSR activities can allow local organizations to signal that they are good corporate citizens. Hence, CSR could be considered as a particularly critical source of competitive advantage for businesses in the region.

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Since the oil price downturn of 2015, the United Arab Emirates and fellow Gulf Cooperation Council countries have worked hard to expand digital payments in the interest of improved tax and revenue collection, transparency, and security. Yet despite a deep transformation and diversification of their payment eco-systems and the formalization of plans to become “cashless economies” modelled on South Korea and Sweden, cash continues to dominate payments in both countries. While industry players typically attribute the prevalence of cash in the region to questions of infrastructure readiness, transaction costs, and cyber-security, this paper finds that plans to expand digital payments at the expense of cash may not be well-adapted to countries with high levels of socio-economic inequality. It proposes a link between socio-economic inequality and use of cash in emerging economies, and concludes that it may be better to not view the relationship between cash and digital payments in binary zero-sum terms, until there is a better understanding of the socio-economic, technological, and policy context in which countries like South Korea and Sweden have managed to reduce their reliance on cash in favor of a diversified digital payments eco-system.

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Background: Prevalence of overweight and obesity is high in the Eastern Mediterranean Region, and there are higher rates in Gulf Cooperation Council (GCC) countries. This had led GCC countries to impose policies that aim to decrease obesity, overweight, and diabetes rates. The objective of this research is to measure the impact of such implemented policy to reduce obesity, namely taxes applied to sugar-sweetened beverages (SSB) in GCC. Methods: The impact of SSB taxes has been measured using a panel data set that covers sales volumes of soft drinks in GCC countries from 2010 to 2020. Results: annual growth in soft drink sales volumes decreased; from 5.44% to 1.33% in Saudi Arabia, 7.37% to 5.93% in United Arab Emirates, and 5.25% to 5.09% in Bahrain from 2016 to 2017. In Qatar, a tax was implemented in 2019, and a reduction in sales volume growth was observed between 2019 and 2020 (3.78% to 2.45%), and in Oman a reduction was observed between 2018 and 2019 (3.60% to 2.99%). Kuwait was the last GCC country to implement taxes in 2020, and the growth in sales volumes decreased from 6.31% to 5.47% from 2019 to 2020. Conclusions: The introduction of health-related taxes on soft drinks has been followed by a drop in the growth rates of sales in GCC countries. This, in turn, can be expected to contribute to a reduction in the prevalence of overweight and obesity, especially when combined with complementary public health policies and interventions. Hence, awareness campaigns should promote the reduction of the consumption sales of SSB and substitute with more consumption of fresh juices. These recommendations align with the recommended priority actions by the World Health Organization Strategy on nutrition for the Eastern Mediterranean Region 2020-2030 adopted by the countries of the Region in October 2019.

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In the past two decades, Arab countries have had their fair share of political instability and economic dislocations. They have also experienced relatively low national savings – at close to 24%, more than 10% less than the Asian economies. This paper looks at how private savings can be invigorated so as to finance more investment and growth, especially in the presence of persistent budget deficits. It develops a simple macroeconomic equation for the determinants of private savings, and uses a novel econometric approach – Robust Least Squares – to estimate that equation for a sample of ten Arab countries across the three sub-regions of the Gulf, West Asia, and North Africa, for the annual 1994-2015 period. The paper finds that Arab private savings compensate for government dis-savings and help ameliorate pressures on the current account and exchange rates. It also finds that Arab private savings are closely related to long-run Arab GDP growth ala the life cycle hypothesis, and proposes policies to enhance the mutual growth of Arab private savings and GDP.

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This paper reports the results of a ten-year monitoring program of an Atlantic Canadian population of green crabs, Carcinus maenas, in the Minas Basin of the Bay of Fundy. Intertidal densities, sex and reproductive ratios, juvenile recruitment, subtidal catch-per-unit-effort (CPUE), and sizes of crabs in this population were recorded from 2008 to 2017. In 2013 intertidal densities, mean crab sizes, subtidal CPUE, and proportions of crabs mature and reproducing all dramatically decreased to all-time lows, and large crabs virtually disappeared from the population. From 2014 to 2017 the population partially recovered but remained in an altered state. Potential causes of interannual changes to this population were investigated by correlating intertidal densities to 257 monthly environmental variables and performing stepwise multiple regression analyses. Crab densities in a given year were best explained by potential settlement during the summer and the maximum sea-surface temperature during March of the same year. However, potential roles of other factors (e.g., autumn winds, summer temperatures, North Atlantic Oscillation index) could not be ruled out. Changes in abundances of other species in the area, particularly predators and prey of green crabs, have also been observed and present possible alternative causative agents that should be investigated. Populations of other marine species in the Gulf of Maine-Bay of Fundy region within which the Minas Basin is situated have also been reported to have undergone dramatic changes in and after 2013, suggesting the occurrence of some oceanographic event or regime shift in the region. Declines to the monitored crab population in this study may have resulted from this same 2013 event. These observations have implications for recruitment to marine populations in this region.

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Here is the contribution of K. N. Kostur in the development of national military naval medicine based on documentary data. K. N. Kostur was born on May 6, 1921 in the village of Kuzmin, Gorodok district of the Khmelnitsky region of the Ukrainian SSR. After graduating secondary school with ten years of study, he entered the Naval Medical School (NMS). He passed the first practice in August 1940 on the cruiser «Aurora», which was in Kronstadt. In late October 1941, after an early release from NMS, he was sent to the «Road of Life». The convoy of the Red Banner Baltic Fleet (RBBF), where he served, took the wounded, women and children out of besieged Leningrad. Konstantin Nikolaevich Kostur, being a senior medical assistant, was part of the Railway Artillery Battery of the 263rd Division of Railway Artillery of the 1st Guards Brigade of the Red Banner Baltic Fleet. He participated in combat operations to break the blockade of Leningrad, liberate the islands in the Vyborg gulf, and also liberate the Baltic states and East Prussia. Several post-war years participated in the combat demining of the Finland gulf. Then — 5 years of study at the Naval Medical Academy (NMS), service on the cruiser «Maxim Gorky» as the head of the medical service, and also — 22 years of hard work in the 1st order of Lenin Naval Hospital of the Leningrad Naval Base. Here K. N. Kostur went from the young attending doctor to the head of the gastroenterological department and the lead therapist of the hospital. After the release to the reserve, Konstantin Nikolayevich until the last day was actively working as a therapist at the 285th Polyclinic of 1st order of Lenin Naval Hospital of the Leningrad Naval Base, assisting military personnel, members of their families, military retirees and civilians. Despite high positions and great administrative and medical work, K. N. Kostur conducted deep research studies on topical issues of naval therapy and gastroenterology, was actively engaged in inventive and rationalization activities.

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Al Jazeera (AJ) has been a defining feature in developing news media in the Middle East and beyond. The satellite-broadcasting network has played a leading role in bringing stories and perspectives that other international media do not always cover, if at all. More importantly, it has been a champion for democracy and human rights in the Middle East, thereby provoking the ire of Arab autocratic rulers, which went to great length to silence the Qatar-based television news network. The latest Gulf Crisis, in which four countries (Saudi Arabia, the United Arab Emirates, Bahrain, and Egypt) blockaded Qatar in July 2017, is another attempt to silence this media institution and peg back the region to the pre-Arab Spring era. The anti-Qatar quartet issued an ultimatum of 13 demands to be fulfilled within ten days. The list included paying reparations, shutting down Al Jazeera, curbing bilateral relations with Iran, closing a Turkish military base, and submitting to monthly external compliance checks. However, the crisis could be a blessing in disguise for Qatar and the network in its campaign for greater freedom of expression in the Middle East. This article analyses the crisis from a media political economy perspective.

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Abstract This study focuses on a pidgin predominantly used by Asian immigrants in the city of Abha in the southwestern region of Saudi Arabia, examining multifunctionality as it appears in three grammatical categories, definiteness, predication, and pronouns. Whereas previous studies on Gulf Arabic Pidgin have described the variety in terms of multifunctionality (e.g. Avram 2004; Bakir 2014, and Potsdam and Alanazi 2014), the current study focuses on the different pathways that bring it about. Three types of multifunctionality are described in terms of refunctionalization, generalization and neutralization. hada (< *haaða ‘this’) is refunctionalized to mark definiteness and as a deictic marker fills the function of the demonstrative. fī, (< *fi ‘at, exist’) has multiple functions being used as a preposition, an existential marker in the meaning of ‘there is/are’, a generalized predicate marker when occurring before adjectival, nominal and verbal predicates. The pronominal system shows simplification from ten to five pronouns only. The study is based on data collected in interviews with a random sample of twenty-four Asian participants of both sexes. Their ages ranged from 26 to 45 years old and their length of stay in Saudi Arabia ranged from four to nine years. They occupied different jobs. A total of twenty nine hours of audio-visual interview data were analysed.

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Abstract The white marlin, Kajikia albida, is a highly migratory, prized sport fish of conservation concern. Improved understanding of white marlin ecology, including habitat use, will inform management measures. To improve white marlin movement knowledge in a region with limited information, we tagged 18 individuals off the eastern Yucatan Peninsula, Mexico with pop-up satellite archival transmitters. Tracks lasting 9–328 d, yielded data across 1277 d, and covered distances of 891–10 579 km. Horizontal movements varied greatly with ten individuals remaining in the Gulf of Mexico/northwestern Caribbean and eight individuals entering the western North Atlantic. Although white marlin experienced a temperature range of 10.0–33.6 °C, the majority of time was spent in waters &gt;24 °C. Marlin displayed diel diving patterns with deeper dives occurring more frequently during the daytime. As water columns warmed, dive duration, maximum daily depth, and dive depth all increased. As a result, 18% of the time was spent at depths &gt;100 m in the warmest water columns compared with &lt;1% in the coldest water columns. Although the thermal characteristics of the water column greatly influence white marlin diving behaviour, the generally shallow distributions provide a way of separating white marlin from important fishery species.

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A new sweep-search algorithm (SSA) is developed and tested to identify the channel geometry transitions responsible for numerical convergence failure in a Saint-Venant equation (SVE) simulation of a large-scale open-channel network. Numerical instabilities are known to occur at “sharp” transitions in discrete geometry, but the identification of problem locations has been a matter of modeler’s art and a roadblock to implementing large-scale SVE simulations. The new method implements techniques from graph theory applied to a steady-state 1D shallow-water equation solver to recursively examine the numerical stability of each flowpath through the channel network. The SSA is validated with a short river reach and tested by the simulation of ten complete river systems of the Texas–Gulf Coast region by using the extreme hydrological conditions recorded during hurricane Harvey. The SSA successfully identified the problematic channel sections in all tested river systems. Subsequent modification of the problem sections allowed stable solution by an unsteady SVE numerical solver. The new SSA approach permits automated and consistent identification of problem channel geometry in large open-channel network data sets, which is necessary to effectively apply the fully dynamic Saint-Venant equations to large-scale river networks or for city-wide stormwater networks.

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The disposal of solid waste in a conventional landfill is inevitably associated with potential adverse environmental impacts, resulting in the migration of landfill gas and offensive odors on the surrounding areas. In addition to the obnoxious fumes and hazardous leachate, heat generation is continuously observed within the landfill during the aerobic and anaerobic phases. Despite the negative impacts, such “heat generation” phenomenon can turn into valuable information to aid in detecting unauthorized landfill activities and tracing unrecorded dumping regions. The spatial distribution of waste buried under the ground can be approximated and revealed through measuring the ground surface heat flux. In this study, we demonstrate how to utilize thermal remote sensing techniques to measure the land surface temperature (LST), which can aid in outlining the waste dumping regions within a landfill. The Jeleeb Al-Shuyoukh landfill, located in Kuwait, was used to demonstrate the proposed method, where the record of the exact dumping location was missing during the Gulf war. Ten-year Landsat Thematic Mapper(TM)/Enhanced Thematic Mapper Plus (ETM+) images (1985–1994) were acquired and processed in order to compute the LST within the landfill. Through combining the multi-temporal LST contours and overlay analysis, the most probable dumping regions within the landfill were outlined. A probability map was created to indicate the possible location of waste dumping within the studied landfill. With reference to the 50 boreholes drilled by the Environmental Protection Authority of Kuwait, our results derived during the summer and winter seasons both yielded an overall accuracy of 72%.

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Abstract. Long-term precipitation forecasts can help to reduce drought risk through proper management of water resources. This study took the saline Maharloo Lake, which is located in the south of Iran and is continuously suffering from drought disaster, as a case to investigated the relationships between climatic indices and precipitation. Cross correlation in combination with stepwise regression technique were used to determine the best variables among 40 indices and identify the proper time-lag between dependent and independent variables for each month. The monthly precipitation was predicted using Artificial Neural Network (ANN) and multi- regression stepwise methods, and results were compared with observed rainfall data. According to R2, root mean square error (RMSE) and Nash–Sutcliffe factors, the ANN model performed better than the multi-regression model, which was also confirmed by classification results. Prediction accuracy was higher in the dry season (June to October) than in the other seasons. The highest and lowest accuracy of the ANN model were in September and March, respectively. Based on this research, the monthly precipitation anomalies in the Maharloo Basin in north of Persian Gulf can be forecast about ten months earlier using NOAA (National Oceanic and Atmospheric Administration) climate indices such as NAO (North Atlantic Oscillation), PNA (Pacific North America) and Nino, which will support drought-risk alleviation in the region.

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El Ain El Sukhna area was selected in the last ten years to initiate many governmental and investmental programs. The different activities in that area depend mainly on the groundwater of the Quaternary aquifer, which forms the main water bearing strata. In the present work, twenty one geoelctrical soundings using the Schlumberger configuration are carried out at selected sites especially in missing parts from wells to delineate the groundwater setting in such sites. Eight of them are conducted in the close vicinity of water wells, where lithologs and pumping test data of these wells are available to relate hydrologic and geoelctric measurements. The pumping tests data are analyzed by using AQTESOLV program and the geolectrical sounding data were interpreted by partial curve matching technique to obtain the initial parameters. The results indicated that, the transmissivity is found to be closely related with transverse resistance and the hydraulic conductivity with average transverse resistivity, while the salinity is inversely related with resistivity. Finally, priority map for drilling water wells is constructed to make the results more illustrative and useful for decision maker. The promising area for drilling is located at the western portion of the study region.

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American shad (Alosa sapidissima) concentrate each summer in the basins of the inner Bay of Fundy during their coastal migration. Tag returns from 6124 marked shad indicated that these fish return to every important shad spawning stream on the Atlantic coast. Ten meristic and 16 morphometric characters of shad collected from 14 rivers (range: Florida to Quebec) were used to develop linear discriminant functions (LDF). Variables which differed significantly (p < 0.05) between the sexes, year of sampling, and the time of collection during the spawning run were removed prior to LDF classification. The highest mean percent correct classification was achieved by the allocation of fish into regional groups, after classification into individual rivers, using pooled meristic and morphometric variables: 87.2% for males and 82.4% for females. The functions were then used to assign shad from a mixed populations (Cumberland Basin) to individual rivers and regions. Of these, 10.9% were assigned to rivers south of Cape Lookout, North Carolina, 38.1% to rivers between Cape Lookout and Cape Cod, 32.5% into rivers of the Bay of Fundy, and 18.5% into rivers in the Gulf of St. Lawrence. In-river tag returns were compared with LDF classification and were found to be similar.

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The Marginellidae Fleming and the Cystiscidae Stimpson, herein collectively referred to as marginelliform gastropods, are convergent families of thermophilic marine gastropods. Shallow-water marginelliform gastropods are found in the Ibero-Moroccan Gulf and Mediterranean, diversity rapidly increasing towards tropical West Africa. Surprisingly, in the tropical and subtropical European Miocene fossil record, marginelliform genera of tropical affinity such asPersiculaSchumacher andPrunumHerrmannsen, occurring today in West Africa, are altogether missing. Others, such asMarginellaLamarck, are present only in the southwestern Iberian and Mediterranean Neogene record. This work describes the marginelliform gastropods from the Atlantic Iberian Neogene. Ten species are recorded, of which three are new,Persicula mikhailovaen. sp.,Gibberula costaen. sp., andGibberula brebionin. sp. This study shows thatGibberulaSwainson andVolvarinaHinds have been present in Europe since the Eocene.Marginellamay have originated in southern Africa and migrated north to Europe in the Miocene, never extending further north than west central Portugal.PersiculaandPrunumprobably originated in the Caribbean and migrated east during the Pliocene, following closure of the Central American Seaway. The colonization of the Pliocene European Atlantic coast by gastropods of these genera was selective, only where high sea-water temperature and high productivity were combined. These findings suggest that post-Messinian recolonization of the Mediterranean during the Pliocene was a complex process, involving colonization by groups originating in various regions of the Atlantic, including Europe, Africa and the Americas.

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In less than a decade, the Islamic Banking (IB) industry has become an essential part of the global financial system. During the last ten years, the IB industry has witnessed changes in economic conditions and proved to be resilient during the periods of financial crisis. This paper aims to examine the important issues related to credit risk in selected Islamic banks in nine countries from Association of South East Asian Nations (ASEAN) and Gulf Cooperation Council (GCC) regions. It employs the generalized least squares panel data regression, to estimate the ratio of non-performance financing to total financing as dependent variables and bank specific variables (BSV) to determine the credit risk. It uses 12 years of unbalanced panel data from 40 different Islamic banks. The overall findings show that financing quality has a significant positive effect on credit risk. It is observed that the larger IBs owned more assets with lower credit risk compared to smaller banks. The bank’s age is also an important factor influencing the credit risk level. Moreover, regulatory capital significantly reduces the credit risk exposure adherence to the minimum regulatory capital requirements which help IBs to manage their credit risk exposures. It was also observed that IBs were not affected by the global financial crisis due to less credit risk compared to the conventional banks.

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Numerous hepatitis A outbreaks were linked to the consumption of raw molluscan shellfish in the United States between 1960 and 1989. However, there had been no major molluscan shellfish–associated hepatitis A outbreaks reported in the United States for more than a decade (1989 to 2004). Beginning in late August 2005, at least 10 clusters of hepatitis A illnesses, totaling 39 persons, occurred in four states among restaurant patrons who ate oysters. Epidemiologic data indicated that oysters were the source of the outbreak. Traceback information showed that the implicated oysters were harvested from specific Gulf Coast areas. A voluntary recall of oysters was initiated in September. Hepatitis A virus (HAV) was detected in multiple 25-g portions in one of two recalled samples, indicating that as many as 1 of every 15 oysters from this source was contaminated. Comparing 315 nucleotides within the HAV VP1-2B region, 100% hom*ology was found among four amplicons recovered from a total of six independent experiments of the implicated oysters, and an identical HAV sequence was detected in sera from all 28 patient serum specimens tested. Ten percent heterogeneity over 315 nucleotides (31 variants) was observed between the outbreak strain (subgenotype 1A) and an HM-175 strain (subgenotype 1B) used in the laboratory where the oysters were processed. To our knowledge, this investigation is the first in the United States to identify an HAV-identical strain in persons with hepatitis A as well as in the food that was implicated as the source of their infections.

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Petroleos de Venezuela, S.A. (PDVSA) is an international energy corporation wholly owned by the Republic of Venezuela, whose principal areas of activity are petroleum, bitumen, natural gas, coal and petrochemicals. The steady expansion of PDVSA's NATURAL GAS INFRASTRUCTURE IN Venezuela and the strong performance of its subsidiaries, has contributed to increase its operational and marketing flexibility, thus allowing it to evolve from a simple exporter of crude oil and refined products to an important supplier of Natural Gas Liquids (NGL) to the world's major energy markets. In this respect Corpoven one of PDVSA's affiliated Companies has made considerable progress with the expansion of its Eastern Venezuela Cryogenic Complex. In 1994 it will produce an incremental volume of 45 thousand barrels per day of natural gas liquids from gas pipe in from northern Monagas region. Also, it has programmed the installation of two other Criogenic Plants in the next ten years, and as a result NGL exports are expected to increase from 175 thousand barrels day in 1994 to 232 thousand barrels day in 1998. Plans are also well underway for Venezuela to become a major exporter of LNG towards the turn of the century. More specifically, at the end of 1992, another PDVSA subsidiary, Lagoven, reached an agreement with Exxon, Shall and Mitsubishi to develop the Cristobal Colon LNG project, which calls for the exploitation of vast reserves of natural gas located in the Gulf of Paria, in northeastern Venezuela. The projected LNG production is in the order of 6 million tons per year.

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Background: Over the past decade, the global caffeine consumption rate has increased dramatically. Coffee and tea are among the common sources, but energy drinks are becoming an important contributor to total caffeine consumption. Recommendations for daily caffeine intake is not being followed due to the perceived benefits of caffeine which include mood improvement, concentration, social factors, and energy boosting. This study was important to add to the limited data about caffeine consumption in the Gulf region and mainly in the UAE.Objectives: The objectives were to determine the prevalence of caffeinated beverage consumption among university students and perceived benefits in addition to the estimation of daily caffeine consumption (mg/day).Design: Data was collected through a self-reported questionnaire from a total of 175 participants (129 females and 46 males) who were conveniently selected from different settings at Zayed University - Dubai. Usual Caffeine intake was calculated from all caffeine containing beverages. Results: Eighty-six percent of the 175 participants, both males and females, at Zayed University-Dubai consumed caffeinated beverages with an average intake of 249.7±235.9 mg. The intake among the 150 caffeine consumers varied from 4.2 mg/day to 932.2 mg/day. Average intake of caffeine was not significantly different between genders (P=0.125). Thirty-five percent of the population consumed more than 400 mg/day of caffeine, with no statistical difference between males and females (P=0.202). Coffee was the most commonly consumed drink among both genders, followed by tea. Most perceived benefits of caffeine consumption were not significantly different except for the relationship between caffeine and improved exercise performance (P=0.018) and caffeine in relation to weight loss (P=0.001) among males.Conclusion: The prevalence of caffeine consumption at Zayed University was high among both males and females. Further research is necessary to estimate the total caffeine intake from all dietary sources, mainly the cultural foods and beverages, and to determine the relationship between accessibility to caffeine containing beverages and caffeine consumption among University student.

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Purpose Young children, often called as teenagers (13-14 years) and tweenaged (8-12 years), are the new potential game changers for the big corporate. This paper aims to analyze Arab children’s influence for various products and services and across different buying process stages. The primary survey was conducted to capture a child’s role in family decision-making by analyzing their consumer socialization, influencing strategies and their influence across various products and buying stages. Design/methodology/approach Based on the review and the research gap, a bilingual questionnaire in English and Arabic language was developed. The research study was organized in three stages. It commenced with a pilot study conducted with ten school students in the age group of 8-10 years. The second stage involved contact with the schools by telephone to brief them on the purpose of the study and to request the participation of their students. The last stage was based on the survey conducted in the time period of September-November 2016-17. Findings Almost 25 per cent of the children surveyed prefer to buy stationary and books after discussing with their parents. On the other hand, food/beverage is one particular item where children go ahead and buy theses item themselves even without discussing with their parents (42.50 per cent of the total respondents). As per children’s perception, they are most influential in the final decision stage (mean = 1.84 and SD = 0.499), followed by search and evaluation stage (mean = 1.80 and SD = 0.441) and start stage (mean = 1.79 and SD = 0.488). Research limitations/implications Further research is needed in Arab countries, especially with parents of different social status, as their shopping behaviour is expected to differ. Also, as this analysis is based on child’s perception, parents’ views must also be analyzed for better results. Practical implications The is the first-of-its-kind research in the Gulf region. This empirical research highlights the need for global marketers to understand the distinct features and identity of a young Arab consumer. Despite Oman being a very traditional culture which emphasizes on conformity to group norms and social acceptance and hence confirms to collectivistic culture, where kids are supposed to be obedient, there is this new wave of super energetic, more informed young kids who take their own consumer decisions. Originality/value After going through the extensive literature review of different countries/cultures, there has been very clear understanding that despite being an important family member, almost no research has been focussed on kids in gulf nations.

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Five new species of small grass cicadas belonging to the genus Graminitigrina Ewart and Marques are described, together with detailed analyses of their calling songs. Four species occur in Queensland, G. aurora n. sp. from eastern central Queensland near Fairbairn Dam; G. flindensis n. sp. from central Queensland between Hughenden northwards for at least 108 km; G. einasleighi n. sp. from near The Lynd, Einasleigh River, northeastern Queensland; G. selwynensis n. sp. from the Selwyn Range, northwestern Queensland, at locations about 40 km east of Mount Isa and 25 km southwest of Cloncurry, this latter here transferred from G. bowensis Ewart and Marques; G. uluruensis n. sp. from Uluru and the Olgas in southwestern Northern Territory, extending northwards through Tennant Creek and apparently further north to near Larrimah, a linear distance of approximately 1190 km. These new species bring the known Graminitigrina species to ten, all superficially similar in colour and morphology. A key to male specimens is provided for the 10 species. Additional distribution records and additional aural song recordings are presented for G. bowensis, these requiring the transfer of populations previously identified as G. bowensis from Croydon and Georgetown, northern Gulf region, to G. karumbae Ewart and Marques. Detailed comparative analyses, including NMDS analyses, of the songs of all 10 species are provided, which show that the song parameters are appropriate to distinguish the species, although some partial overlap is noted in the waveform plots between the songs of G. uluruensis n. sp. and G. flindensis n. sp. Regional variations of song parameters are noted in the calling songs of most of the species described.

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Sustainable building construction in the Eastern Province of Saudi Arabia is fraught with issues, ranging from groundwater table fluctuation to inappropriate earthwork techniques, particularly in areas that were previously reclaimed. This paper analyzes the geotechnical factors that affect the safety and serviceability of infrastructure construction on reclaimed land. The data were collected mainly from expert-based surveys and semi-structured interviews with geotechnical experts across the Eastern Province of Saudi Arabia. Ten critical factors were identified, and an integrated assessment was conducted using the Interpretive Structural Modelling (ISM) technique to examine the hierarchical structure of the relations between the factors. In addition, the Cross-impact Matrix Multiplication Applied to Classification (MICMAC) technique was used to classify the factors from a driving to driven perspective. Findings of the study reveal the driving factors, which have the propensity to affect other factors and are the most crucial factors hindering the safety and serviceability of sustainable building construction. These factors are the presence of low-bearing sabkha soil, shallow and fluctuating depth of the groundwater table, and the lack of soil improvement applications. It is expected that concerned authorities may find the outcomes of this study useful in formulating effective policies, standards, and regulations that will protect infrastructure construction from safety and serviceability problems. While the evidence on which the results of this study are based is from experiences related to coastal areas of Saudi Arabia, the outcomes of this paper could be adopted in other coastal areas in the Gulf region. This paper adds to the current knowledge on safety and serviceability management of infrastructure constructed on reclaimed lands.

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Abstract:

Mapping of groundwater potential in remote arid and semi-arid regions underneath sand sheets over a very regional scale is a challenge and requires an accurate classifier. The Classification and Regression Trees (CART) model is a robust machine learning classifier used in groundwater potential mapping over a very regional scale. Ten essential groundwater conditioning factors (GWCFs) were constructed using remote sensing data. The spatial relationship between these conditioning factors and the observed groundwater wells locations was optimized and identified by using the chi-square method. A total of 185 groundwater well locations were randomly divided into 129 (70%) for training the model and 56 (30%) for validation. The model was applied for groundwater potential mapping by using optimal parameters values for additive trees were 186, the value for the learning rate was 0.1, and the maximum size of the tree was five. The validation result demonstrated that the area under the curve (AUC) of the CART was 0.920, which represents a predictive accuracy of 92%. The resulting map demonstrated that the depressions of Mondafan, Khujaymah and Wajid Mutaridah depression and the southern gulf salt basin (SGSB) near Saudi Arabia, Oman and the United Arab Emirates (UAE) borders reserve fresh fossil groundwater as indicated from the observed lakes and recovered paleolakes. The proposed model and the new maps are effective at enhancing the mapping of groundwater potential over a very regional scale obtained using machine learning algorithms, which are used rarely in the literature and can be applied to the Sahara and the Kalahari Desert.

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Abstract:

The native range of the blue crab Callinectes sapidus spans Nova Scotia to northern Argentina. In the US, it constitutes a keystone species in estuarine habitats of the Atlantic coast and Gulf of Mexico (GOM), serving as both predator and prey to other species, and also has historically represented a multi-billion dollar fishery. Knowledge relevant to effective management and monitoring of this ecologically and economically important species, such as levels of population genetic differentiation and genetic diversity, is necessary. Although several population genetics studies have attempted to address these questions in one or more parts of its distribution, conflicting results and potential problems with the markers used, as well as other issues, have obscured our understanding on them. In this study, we examined large-scale genetic connectivity of the blue crab in the US, using 16 microsatellites, and genotyped individuals from Chesapeake Bay, in the US Atlantic, and from nine localities along the US GOM coast. Consistent with the high long-distance dispersal potential of this species, very low levels of genetic differentiation were detected for the blue crab among the ten US localities examined, suggesting it constitutes a large panmictic population within this region. Estimations of genetic diversity for the blue crab appear to be high in the US, and provide a baseline for monitoring temporal changes in this species. Demographic analyses indicate a recent range expansion of the US population, probably during the Holocene. In addition, capitalizing on published microsatellite data from southern Brazil, our analyses detected high genetic differentiation between localities in the US and Brazil. These results point to the need for examination of genetic diversity and differentiation along the area spanning the US to southern Brazil.