scholarly journals Further Studies of the Effects of Smoke from Towns upon Vegetation in the Surrounding Areas

1914 ◽  
Vol 6 (4) ◽  
pp. 395-405 ◽  
Author(s):  
Charles Crowther ◽  
Dan. W. Steuart

In two previous communications a summary has been given of the results obtained in determinations of the relative degree of atmospheric pollution, firstly in various parts of the city of Leeds, and secondly in the surrounding semi-urban and rural areas, to a distance in some directions of seven miles from the centre of the city. The results obtained in the latter series indicated clearly the presence of extensive atmospheric pollution, showing the characteristics of coal smoke, in all parts of the area investigated. The degree of pollution was found to fall rapidly on passing in a northerly direction from the centre of the city into an area free from smoke-producing industries, but less rapidly on passing into similar areas to the north-east and east of the city, owing to the greater dispersion of the city smoke in these directions by the prevailing winds. On the opposite side of the city, from north-west round by south to south-east, smoke pollution was found to be very high in all quarters.

1989 ◽  
Vol 20 ◽  
pp. 251-258
Author(s):  
R. I. Lawless

Oil wealth has transformed Libya, a desertic and sparsely populated country, bringing dramatic demographic changes (Zoghlami 1979). El Mehdawi and Clarke (1982) and Lawless and Kezeiri (1983) describe and analyse the growing polarisation of the population in the north-west and north-east coastal regions which contain the two largest cities, Tripoli and Benghazi. They show that in recent years spatial duality has been sharply intensified by strong rural to urban migration and also by an increase in interregional migration. The concentration of new development programmes in certain urban centres has been the main cause of the development differential among the regions. As a result the regions which include the most important urban centres have become the most prosperous and the others have become less developed or even depressed. This has been the main cause of the rapid increase in both rural to urban migration and interregional migration. The inhabitants of the less developed regions have continued to move in increasing numbers to those which are more developed. The large majority of migrants who moved from these less developed regions are represented by rural people who have changed their place of residence and their occupation. They have left their work in the rural sector to seek employment in the industrial and service sector. As a result agricultural production has declined. The agrarian sector now employs less than a quarter of the Libyan workforce and the percentage of nomads and semi-nomads has declined to under 10% of the population. Albergani and Vignet-Zunz (1982) have shown that colonial invasion and occupation followed by the Second World War threatened the Bedouin of the Jebel Akhdar with extinction, not through sedentarisation but through the mass migration of a devastated rural population. The advent of oil and the high salary levels available in urban centres further encouraged this tendency. Gannous (1979) studied the movement of Bedouin from rural areas to the town of Al Abiyar and the erosion of Bedouin culture by urban values.


2021 ◽  
Author(s):  
Opeyemi Oluwatosin Babajide ◽  
Joshua Odunayo Akinyemi ◽  
Olusola Ayeni

Abstract BACKGROUND High Maternal Mortality (MM) in Nigeria is further complicated by the lack of reliable estimates for subnational levels such as states and geopolitical regions. Disaggregating maternal mortality estimates by subnational levels is crucial to ensuring policy decisions and program implementation are adapted to areas with a high burden of mortality. This study involves a novel adaptation of small area estimation techniques to derive plausible estimates of levels and trends in Maternal Mortality rates and ratios for states and geopolitical regions in Nigeria. METHODS. Survivorship history data of 293,769 female siblings were provided by 114,154 women in the Nigeria Demographic and Health Surveys of 2008, 2013 and 2018. MM Rates and Ratios were estimated using the Empirical Bayesian technique for small area demographic estimates. The James-Stein estimator was used to shrink the estimates closer to the population mean values with 95% Confidence Interval (CI). RESULTS Levels of MMRatio were highest in the rural areas, States and regions in Northern Nigeria. MMRatio was consistently lower in the South West (2008=281; 2013=367; 2018=392) and higher among the Northern regions of the country, particularly the North-East (2008=654; 2013=612; 2018=901) for three consecutive surveys. Over the three surveys, mortality trends declined about 18% in the North West and 54.2% in the South East region. However, there was a 4.8% increase in MMRatio for South West between 2008 to 2018. CONCLUSIONS Nigeria has geopolitical and sub-national disparities that pose a burden to the country’s maternal health. Since several states in the Northern geopolitical zone still show high maternal mortality, targeted intervention at state levels should be explored to ensure that mothers who need help get it to ensure the sustainable development goals are met.


2021 ◽  
Vol 8 (1) ◽  
pp. 26-44
Author(s):  
Vladimir Pokalyuk ◽  
Igor Lomakin ◽  
Valentyn Verkhovtsev ◽  
Vladimir Kochelab

Modern high-precision global digital 3-d models of the relief of the continents and the ocean floor (SRTM, GEBCO) are the objective basis to clarify the structure and features of the organization of the planetary fault network of of the Black Sea region and adjacent areas of the Mediterranean mobile belt and surrounding platform areas, to find out the location of the main transregional supermegalineaments forming the deep structural-tectonic framework of the territory. A complete consistency of the structural plan of faults and fault zones within the sea areas and continental surroundings is established. The structural position of the Black Sea basin as a whole is determined by its location at the intersection area (superposition, interference) of the diagonal (subdiagonal) transcontinental tectonolinament belts: the north-west – Elba-Zagros, Caucasus-Kopetdag, and the north-east – Atlas- Black Sea. The absence of large-scale lateral displacements at the intersection nodes of differently oriented supermegalineament systems indicates the relative autonomous stationarity and inheritance of the formation of the lyneament framework during the entire Mezozoic-Cenozoic and relatively low-shear nature of its implementation. This feature of the Black Sea region structural pattern significantly limits the possibility of using neomobilistic geodynamic models to explain the history of the geological development of the region. The strict consistency and orderliness of the lineament framework can be ensured only by global planetary factors associated with the influence of the rotational regime of the Earth's shells on the stress distribution in the lithosphere.


1992 ◽  
Vol 2 (1) ◽  
pp. 21-35 ◽  
Author(s):  
A. K. S. Lambton

The city of Yazd is situated on the edge of the Dasht-i Kavīr in the Ardistān-Yazd basin, which stretches some 250 miles from near Kāshān to south of Bāfq. It lies at a height of 4,000 ft. West of Yazd, the Shīr Kūh massif rises to 13,370 ft. It receives considerable moisture including heavy snow but the rainfall of Yazd itself is less than 5 in. per annum. Near Yazd groundwater which originates in the Shīr Kūh mountains follows a northward slope from Mihrīz towards Ardakān. Before the sinking of semi-deep power-operated wells from about 1950 onwards, Yazd obtained its water from long qanāts originating in the mountains west of Taft and Mihrīz. The qanāts of the villages to the north-west of Yazd tap water in the highest elevations of the basins to the north-east. Some of these qanāts flow underneath Yazd, while a few originate in Yazd itself.


1913 ◽  
Vol 5 (4) ◽  
pp. 391-408 ◽  
Author(s):  
Charles Crowther ◽  
Dan W. Steuart

The rain analyses summarised in this paper bring out very clearly the marked difference in the purity of the atmosphere between the industrial-rural area to the west and south and the purely agricultural area to the north and north-east of Leeds.They show that the sulphur-content of the rain falling at a given station affords a fairly reliable diagnosis of the degree of pollution of the atmosphere by smoke, provided the observations be prolonged over several months. Further, evidence has been obtained in confirmation of that adduced by earlier observers, that the sulphur-content of the leaves of trees may afford useful assistance in the diagnosis of smoke-pollution. In preliminary tests the proportion of sulphur present in the leaf as sulphate gave a sharper grading of the pollution in different districts than the total sulphur.The rain analyses show further that appreciable smoke-pollution still remains throughout the agricultural area at distances of seven miles from the city, the rate of improvement of the atmosphere on passing away from the city into the purely agricultural areas being appreciably slower in the direction of the prevailing winds than in other directions.In a general way the analyses tend to show that the smoke, though in greater quantity, is in a higher state of oxidation in the dirtier or more industrial districts—due to more efficient combustion of the coal.Throughout the industrial-rural area abundant evidence of damage to leaves was found, and there can be no doubt of the consequent check to growth.


Antiquity ◽  
1976 ◽  
Vol 50 (200) ◽  
pp. 216-222
Author(s):  
Beatrice De Cardi

Ras a1 Khaimah is the most northerly of the seven states comprising the United Arab Emirates and its Ruler, H. H. Sheikh Saqr bin Mohammad al-Qasimi, is keenly interested in the history of the state and its people. Survey carried out there jointly with Dr D. B. Doe in 1968 had focused attention on the site of JuIfar which lies just north of the present town of Ras a1 Khaimah (de Cardi, 1971, 230-2). Julfar was in existence in Abbasid times and its importance as an entrep6t during the sixteenth and seventeenth centuries-the Portuguese Period-is reflected by the quantity and variety of imported wares to be found among the ruins of the city. Most of the sites discovered during the survey dated from that period but a group of cairns near Ghalilah and some long gabled graves in the Shimal area to the north-east of the date-groves behind Ras a1 Khaimah (map, FIG. I) clearly represented a more distant past.


Author(s):  
Sergey B. Kuklev ◽  
Vladimir A. Silkin ◽  
Valeriy K. Chasovnikov ◽  
Andrey G. Zatsepin ◽  
Larisa A. Pautova ◽  
...  

On June 7, 2018, a sub-mesoscale anticyclonic eddy induced by the wind (north-east) was registered on the shelf in the area of the city of Gelendzhik. With the help of field multidisciplinary expedition ship surveys, it was shown that this eddy exists in the layer above the seasonal thermocline. At the periphery of the eddy weak variability of hydrochemical parameters and quantitative indicators of phytoplankton were recorded. The result of the formation of such eddy structure was a shift in the structure of phytoplankton – the annual observed coccolithophores bloom was not registered.


2020 ◽  
Vol 8 (2) ◽  
pp. 13
Author(s):  
Ankita Pandey

Guwahati derives its name from the Assamese word “Guwa” means areca nut and “Haat” means market. However, the modern Guwahati had been known as the ancient Pragjyotishpura and was the capital of Assam under the Kamrupa kingdom. A beautiful city Guwahati is situated on the south bank of the river Bramhaputra. Moreover, It is known as the largest city in the Indian state of Assam and also the largest metropolis in North East India. It has also its importance as the gateway to the North- East India. Assamese and English are the spoken languages in Guwahati.  In 1667, the Mogul forces were defeated in the battle by the Ahom forces commanded by Lachut Barphukan. Thus, in a sense Guwahati became the bone of contention among the Ahoms, Kochas and the Moguls during the medieval period.  Guwahati the administrative headquarters of Lower Assam with a viceroy or Barbhukan was made by the Ahom king.  Since 1972 it has been the capital of Assam. The present paper will discuss the changes happened in Guwahati over the period of late 1970s till the present time. It will focus on the behavior of people, transformed temples, Panbazar of the city, river bank of Bramhaputra, old Fancy Bazaar, chaotic ways, festivals and seasons including a fifth man made season etc. It will also deal how over the years a city endowed with nature’s gifts and scenic views, has been changing as “a dirty city”. Furthermore, it will also present the insurgencies that have barged into the city. The occurrence of changes will be discussed through the perspective and point of view of Srutimala Duara as presented in her book Mindprints of Guwahati.


Author(s):  
Peter R. Dawes ◽  
Bjørn Thomassen ◽  
T.I. Hauge Andersson

NOTE: This article was published in a former series of GEUS Bulletin. Please use the original series name when citing this article, for example: Dawes, P. R., Thomassen, B., & Andersson, T. H. (2000). A new volcanic province: evidence from glacial erratics in western North Greenland. Geology of Greenland Survey Bulletin, 186, 35-41. https://doi.org/10.34194/ggub.v186.5213 _______________ Mapping and regional geological studies in northern Greenland were carried out during the project Kane Basin 1999 (see Dawes et al. 2000, this volume). During ore geological studies in Washington Land by one of us (B.T.), finds of erratics of banded iron formation (BIF) directed special attention to the till, glaciofluvial and fluvial sediments. This led to the discovery that in certain parts of Daugaard-Jensen Land and Washington Land volcanic rocks form a common component of the surficial deposits, with particularly colourful, red porphyries catching the eye. The presence of BIF is interesting but not altogether unexpected since BIF erratics have been reported from southern Hall Land just to the north-east (Kelly & Bennike 1992) and such rocks crop out in the Precambrian shield of North-West Greenland to the south (Fig. 1; Dawes 1991). On the other hand, the presence of volcanic erratics was unexpected and stimulated the work reported on here.


1964 ◽  
Vol 44 (1) ◽  
pp. 1-8

Early in 1963 much of the land occupied by the Roman building at Fishbourne was purchased by Mr. I. D. Margary, M.A., F.S.A., and was given to the Sussex Archaeological Trust. The Fishbourne Committee of the trust was set up to administer the future of the site. The third season's excavation, carried out at the desire of this committee, was again organized by the Chichester Civic Society.1 About fifty volunteers a day were employed from 24th July to 3rd September. Excavation concentrated upon three main areas; the orchard south of the east wing excavated in 1962, the west end of the north wing, and the west wing. In addition, trial trenches were dug at the north-east and north-west extremities of the building and in the area to the north of the north wing. The work of supervision was carried out by Miss F. Pierce, M.A., Mr. B. Morley, Mr. A. B. Norton, B.A., and Mr. J. P. Wild, B.A. Photography was organized by Mr. D. B. Baker and Mrs. F. A. Cunliffe took charge of the pottery and finds.


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