Wyniki wyszukiwania - Biblioteka Nauki

1

Conodont-based graphic correlation of upper Givetian-Frasnian sections of the Eastern Anti-Atlas (Morocco)

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Gouwy S. , Haydukiewicz J. , Bultynck P.

Geological Quarterly

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2007

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tom Vol. 51, No 4

375-392

EN

A high-resolution correlation of ten upper Givetian-Frasnian sections spread over the differ ent facies environments of the Eastern Anti-Atlas (Morocco) is established using graphic correlation. The mea sured strati graphic ranges of eighty-five cono dont taxa have been as sem bled into a chronostratigraphic framework. The developed regional composite subdivides the Frasnian into 501 composite standard units (CSU) based on the original thickness of the reference section (Bou Tchrafine). This is a higher resolution than obtained by the classic biozone correlation. Based on the conodont data available for this correlation project, the jamieae and Lower rhenana zones could not be recognised in the sections.

2

Estimation of Seismic Kappa Parameter and Near-Surface Attenuation in Morocco

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Boulanouar A. , Mittal H. , Rahmouni A. , Zian A. , Chourak M. , Géraud Y. , Harnafi M. , Sebbani J.

Ecological Engineering & Environmental Technology

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2022

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tom Vol. 23, iss. 6

128--139

EN

The goal of this study is to estimate the kappa (κ) parameter for a group of 12 broadband stations, located in different geological structures in Morocco, a country with moderate seismic activity. In this study, the kappa, κ has been obtained from the spectral analysis of the shear waves of 42 earthquakes, recorded in Morocco. Using 321 seismograms recorded in the period between 2009 and 2012 by the Picasso Project, the average κ-values have been computed from the horizontal components. For each station, the relationship between κ values and the hypocentral distance was determined. We separately investigated and studied the distance dependence of the stations located on soft soil and hard rock sites. The estimated average factor of the κ value ranges from 0.0682 for the hard sites to 0.0763 for the soft sites, with 0.072 as an average value. The lack of a significant correlation found between κ and magnitude at all stations considered in this study suggests that kappa is mainly dependent on local site characteristics. To the best of our knowledge, no studies related to kappa parameter estimation have been published for this region. The results generated in this study can be used for the seismic hazard evaluation of Morocco.

3

Dzieciństwo w Maroku

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Johnsson E.

Studia Edukacyjne

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2021

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nr 60

177-197

EN

This paper is devoted to outlining the child’s situation in the Moroccan socio-cultural reality through the prism of its marginalization. Various factors such as cultural and religious conditions, the family – its structure and economic status, legislative solutions – Family Code Mudawwana, marriage institution, lack of official status, migration, employment, health care and access to education combine to create a map of influences causing specific consequences in the family, in biographies of mothers and finally their children. The purpose of this paper is to produce this map of the problems of today’s Morocco and to make the reader aware of the tragedy and enormity of powerlessness experienced by marginalized, excluded and invisible children. The analysis was based on studies, the latest thematic reports as well as press reports, excerpts of literary texts reflecting the reality of Morocco, or online publications of non-governmental organizations.

4

Synsedimentary distensive heritage and thrusting structuration: geometric modeling of the Jebel Fert El Bir (South Rifian Ridges, Northern Morocco)

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Habibou H. , El Ouardi H. , Habibi M. , Mercier E.

Geologia Sudetica

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2014

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tom Vol. 42

23--24

5

Problemy na granicy afrykańsko-europejskiej - hiszpańskie enklawy w Maroku

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Kotowicz W.

Forum Politologiczne

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2010

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tom 10 - Przestrzeń i granice we współczesnej Afryce

373-390

EN

Ceuta and Melilla, are the last European territories which are left on the African mainland. They are largely unknown to Europeans, other than to Spaniards for whom they present a legacy from the country's military past. Once of the strategic significance owing to their close location to the Strait of Gibraltar, the two towns have gained new importance over the last 10 years as major migration gateways to Europe from the Maghreb and Sub-Saharan Africa, as well as centres for contraband. Ceuta and Melilla (unvaryingly twinned as diplomatic issues) together with a series of rocks and small islands, are claimed by Morocco despite being Spanish possessions for centuries. In the article is described Morocco-Spanish border, the conflict on the island of Leila/Perejil, Morocco-Spanish relations on the background details of the king of Spain Jose Carlos in Ceuta and Melilla, and the problem of immigration from African countries.

6

Maroko - lokalny charakter architektury

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Górski K.

Kwartalnik Architektury i Urbanistyki

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2002

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tom T. 47, z. 2

147-161

EN

Projects by the Warsaw-based architect kazimierz Górski, executed in 1979-1990 for Morocco, Tunis and Saudi Arabia. Alongside his own projects the author presents in a highly captivating manner his notes on the culture and natural environment of Morocco.

7

Meteorological Drought Assessment in the Ziz Watershed (South East of Morocco)

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Dafouf S. , Lahrach A. , Tabyaoui H. , El Hafyani M. , Benaabidate L.

Ecological Engineering & Environmental Technology

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2022

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tom Vol. 23, iss. 6

243--263

EN

In the face of climate change, drought monitoring and characterisation is indispensable in arid and semi-arid areas. This paper represents a metrological drought assessment in the Ziz watershed located in south-eastern Morocco, through the application of four meteorological indices: rainfall anomaly index (RAI), percentage of normal index (PNI), standardized precipitation index (SPI), z-score index (ZSI). Based on rainfall data series from four stations over a time scale of 37 years (from 1983), also taking into account the relationship between these indices. The analysis of the rainfall series indicates a variability in its spatio-temporal distribution. However, the calculated drought indices indicate that the Ziz basin has experienced drought periods with their different classifications between 1983–2019, noting that the years 1986 and 2001 were dry to extremely dry in all stations of the basin. Thus, the results highlight a strong correlation between the four indices (r ≥ 0.967).

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Gospodarowanie wodą w Maroku

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Gromiec M. J.

Gospodarka Wodna

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2006

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tom Nr 11

431-433

PL

Przedstawiono gospodarowanie wodą w Królestwie Maroka - państwie feżącym nad Morzem Śródziemnym i Oceanem Atlantyckim w północno-zachodniej Afryce.

EN

The paper presents the management of water in the Kingdom of Morocco-the state situated on the sea-shore of the Mediterranean Sea and the Atlantic Ocean in the North-Western Africa.

9

Upper Silurian to Middle Devonian conodont faunas from the Rabat-Tiflet area (northwestern Moroccan Meseta)

88%

Benfrika E. M. , Bultynck P. , El Hassani A.

Geological Quarterly

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2007

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tom Vol. 51, No 4

393-406

EN

Conodont faunas are generally sparse in Pridolito middle Givetian deposits from the Rabat-Tiflet area in the north western Moroccan Meseta. The Pridoli and Lochkovian rocks consist of dark platy limestones alternating with dark shales containing graptolites in some levels. In the over lying part of the succession carbonate rocks predominate with the development of reefoid limestones in the lower Givetian. The eosteinhornensis, sulcatus, dehiscens vel kitabicus, laticostatus/inversus, partitus, ensensis, hemiansatus, timorensis and rhenanus/varcus zones have been recognized by occurrence of the conodont in dexspecies.The first appearance of Belodella devonica, occurring together with the graptolite Monograptus uniformis is used as a regional index species for the base of the Devonian. The age of some levels in the succession were previously dated by graptolites, dacryoconarids and rare goniatites.

10

Great Britain and France on the Way to the Entente Cordiale

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Šubrtová M.

Prague Papers on the History of International Relations

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2014

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nr 1

79-97

EN

The Entente Cordiale, which ended tension between France and England in extra‑European territories, became a milestone towards the birth of the Triple Alliance and Triple Entente, two blocks which later clashed in the First World War. Based on the study of published and non‑published documents, this contribution tries to analyze the motives that permitted the Anglo‑French rapprochement from 1898–1904. Attention is paid especially to the Egyptian and Moroccan points of contention between France and Great Britain, which were of crucial and strategic importance for the development of Anglo‑French relations. When France abandoned the policy of pinprick agitation in Egypt in exchange for the policy of a free hand in Morocco, a new era in the Anglo‑French relations was opened.

11

Seasonal Bacterial Contamination of Groundwater in the Zagora Area, Morocco

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Maliki A. , El Moustaine R. , Chahlaoui A. , Boudellah A. , Sadki M. , Belkhiri A. , Taouraout A.

Ecological Engineering & Environmental Technology

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2023

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tom Vol. 24, iss. 6

230--238

EN

The assessment of the bacterial quality of groundwater is a critical step in ensuring safe drinking water. A total of nine (9) water samples were obtained from wells located within the study area, during the wet and dry seasons between December 2020 and December 2021. The parameters measured in this study include total germs at 22 °C (TG-22 °C) and 37 °C (TG-37 °C), total coliforms (TC), fecal coliforms (FC), fecal streptococci (FS), and the sulfito-reductor clostruim (SRC). The results show that the contamination levels vary widely between the different wells and between seasons. The highest levels of contamination were found in W6, with the highest values of all parameters measured except for TC. W1 and W7 were the only wells that were protected, and they had lower levels of contamination compared to unprotected wells. The sources of pollution were mainly related to agricultural activities, such as animal waste and metal waste. The findings of this study suggest the need for improved management practices to reduce contamination and protect the groundwater resources in the study area.

12

Meteors and meteorite falls in Morocco

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Ibhi A.

International Letters of Chemistry, Physics and Astronomy

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2013

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tom Vol. 12

28--35

EN

During the last eighty years, thirteen meteorite falls were recorded in Morocco, which ten are well documented and named Douar Mghila, Oued el Hadjar, Itqiy, Zag, Bensour, Oum Dreyga, Benguerir, Tamdakht, Tissint and Aoussred. It represent only 0.011 % of the Moroccan declared meteorites.The authenticated observed falls represent three types of different meteorites, eight ordinary chondrites (Four of type LL, three of type H and one of type EH), one carbonaceous chondrite and one Shergottite basaltic achondrites. The Morocco meteorite fall recovery rate, during the past eighty years, is low 0.11 falls per year on average per 2.11 km2 (or approximately one fall recovery per 10 year time interval).

13

Physico-Chemical Characterization and Quality of Agricultural Soils in the Zaër Region (Morocco)

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El Omari M. , Aziane N. , Zerdeb M. A. , Naoui B. , El Mekkaoui A. , Akhlidej N. , Oubbih J. , Chakiri S. , Amahmid O. , Zouahri A.

Ecological Engineering & Environmental Technology

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2023

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tom Vol. 24, iss. 8

155--171

EN

This qualitative study of the soils of the Zaër region is part of a context of good development, preservation and sustainability of agricultural soils. Its aim is to establish a reference framework for the physico-chemical characteristics of the region’s agricultural soils. It was based on a spring sampling campaign carried out in 2021. Composite samples taken from thirteen sites with diverse soils were analysed in the laboratory. The soil analysis results were compared with reference values. The soils examined were moderately acidic to moderately alkaline, with low levels of organic matter. Nevertheless, concentrations of exchangeable calcium and magnesium were found to be sufficient, while sodium levels were very low. Furthermore, cation exchange capacity was low in spring, reflecting the soil’s high and low nutrient retention capacity respectively. Phosphorus and potassium levels appear to be low. In the light of these results, the use of organic and mineral fertilisers and calcium amendments is strongly recommended to improve agricultural quality and productivity in the region studied.

14

ASSESSMENT OF THE QUALITY AND IRRIGATION PURPOSE SUITABILITY OF ALLUVIAL WATER IN ERFOUD, MOROCCO

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Latos B. , Szczucińska A. , Kozłowski R.

Quaestiones Geographicae

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2019

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tom 38

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nr 3

EN

Dry areas are especially exposed to the risk of water shortages and elevated mineralization. High water salinity, caused by low precipitation, high evaporation and human impact, usually strongly limits the use of the water for irrigation. The aim of the study was to assess the quality and irrigation purpose suitability of alluvial water in the Erfoud oasis, Morocco. The samples of water were collected from 20 wells in June 2017. We observed excessive concentrations of many parameters i.a.: NO3, Cd, Ni, Na, NH4, Cl, SO4, Fe, Cr. To determine the possibility to use the water for irrigation purposes, the Sodium Adsorption Ratio (SAR), sodium percentage (%Na), permeability index (PI), Kelly’s ratio (KR), magnesium hazards (MH) and electrical conductivity (EC) were assessed. The values of KR and MH qualified the waters as unsuitable for irrigation purposes. The observed %Na indicates that the groundwater is permissible for irrigation purposes, and permeability index, that it is of moderate quality. However, water classification using the SAR vs EC diagram confirms its high and very high alkali and salinity hazard. The mean EC value of the water was 9.5 mS cm−1.

15

Analysis of the Diversity of Spontaneous Urban Flora – The Case of Temara City, Morocco

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Boukita H. , Ziri R. , Brhadda N. , Chemchaoui A. , Ghazi S. , Elwahab F. , Benchahid B. , El Ammari M.

Ecological Engineering & Environmental Technology

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2024

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tom Vol. 25, iss. 1

300--306

EN

Spontaneous flora offers many functions and potentialities in the urban ecosystem. However, few studies have been carried out on this subject in Morocco. The present study aimed to analyze the diversity of spontaneous flora in the urban area of Temara, to contribute to interpreting the structure and dynamics of Moroccan spontaneous flora. During the study, 90 floristic surveys were carried out along four transects, marked A, B, C, and D so that each transect started from the city center and went in one of the four directions of the study area. Transect A ran northwards from the city center, transect B westwards, transect C southwards, and transect D eastwards from the city center. To carry out the floristic surveys, several survey areas were chosen, given the heterogeneity of the urban environment. These areas ranged from a few cm2 for rock fissure plants, through 10 to 25 m2 for grasslands, to 25 to 100 m2 for forest cuttings. The results revealed a total of 137 taxa grouped in 116 genera and belong to 33 floristic families. The Asteraceae family came out on top, with 30 species (21.90%) and 24 genera, and the Poaceae family was in second place with 21 species (15.33%) divided into 20 genera. Analysis of this floristic list indicates a predominance of the therophyte life form (48.90%), then hemicryptophytes (26.28%) followed by geophytes (10.22%) in terms of biological type, and a predominance of the Mediterranean element (31.19%) in terms of chorological type. Of the 137 taxa inventoried, 10 are very rare, 1 is rare, 1 has a doubtful presence, and 2 are endemics. This study showed that even in a disturbed and fragmented environment, such as the urban environment, certain spontaneous plant species adapt to the conditions prevailing in this habitat and show considerable diversity, thus contributing to a better interpretation of the composition and dynamics of the country’s flora.

16

Discovery of thermophilic corals in an ancient hydrothermal vent community, Devonian, Morocco

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Bełka Z. , Berkowski B.

Acta Geologica Polonica

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2005

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tom Vol. 55, no. 1

1-7

EN

Living corals are remarkably broad in their thermal and bathymetric ranges. But corals that could tolerate abnormally high temperatures (higher than 40 C) are unknown both in the living communities and in the fossil record. Here we report the discovery of small thermophilic rugose corals in the Devonian vent community of southeastern Morocco. These organisms were adapted to conditions prevailing within chimney conduits of a hydrothermal system that developed on the roof of a submarine volcanic high. The coral larvae followed a calice-in-calice settlement and growth strategy to survive the contact with thermal fluids. This adaptation was not related to taxonomy and characteristic of all coral taxa present in the vents. Monospecific coral population was identified in several Emsian vents whereas the coral fauna of the single Givetian vent was more diverse and included four species.The entry of different rugose coral species into the hot vents resulted from a trophic relation to ostracods flourishing in the chimneys.

17

Impacts of Anthropogenic Factors on the Groundwater Ecosystem of Fezouata in South-East of Morocco

88%

Boudellah A. , El Moustaine R. , Maliki A. , Moutaouakil S. , El Gharmali A. , Boulanouar M. , El Hachimi Y. , Ghamizi M.

Journal of Ecological Engineering

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2022

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tom Vol. 23, nr 5

30--43

EN

The depletion of aquifer systems in arid and semiarid regions worldwide is causing acute water scarcity and quality degradation, and leading to extensive ecosystem damages. Groundwater is exposed to a variety of anthropogenic water pollution, such as raw wastewater disposal in the Draa Wadi and the use of septic tanks. In this respect, a study performed in some wells of Fezouata (South-east of Morocco) aimed at both discovering the main components of the aquatic subterranean fauna unknown up to now in this area, and the potential relationships between this fauna and the water quality The principal physico-chemical characteristics of water were measured between November 2019 to March 2021 for 15 wells, which were selected considering their position with respect to the pollution sources known in surface. The Fezouata groundwater is distinguished by its high salinity with an increasing gradient from upstream to downstream. The aquatic fauna in the 15 wells showed 12 stygofauna species. In the protected wells which are situated far from the pollution sources, the fauna is dominated by Cirolanidae, Hydrobiidae, Metacrangonctydae, Stenasellidae, and Thermosbaenacea. On the other hand, in the less protected well, close to the pollution sources, the fauna is made of epigean species, such as insect’s larva, mainly Culicidae and Chironomidae. The analysis of the water quality and the subterranean biodiversity shows that the latter decreases with increasing groundwater pollution. It seems that the impact of the acute pollution affected the stygocenose even by reducing drastically the biodiversity.

18

Trends in the Use of Symbiotics in Morocco

88%

Mouri M. , El Ghouddany S. , Ettair S. , Mehdioui S. , Abdellatif B.

Ecological Engineering & Environmental Technology

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2023

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tom Vol. 24, iss. 2

180--185

EN

The symbiotic have been shown to be effective in prophylaxis and treatment of various diseases. Indeed, one of the main functions of probiotics is to improve microbial homeostasis in the body and to decrease the invasion of pathogens and their colonization. The objective of our study is to assess and then compare the rate of sales and the use of symbiotics by the Moroccan population in order to describe the status of sale of this type of Medicine. The collection of belly data was carried out using a questionnaire which contains information on all Moroccan market products and this study includes fifteen of the most widespread symbiotics products (probiotics and prebiotics). The study suggests that the sale of symbiotic products increased in some strains such as bacterial strain Bifidobacterium infantis which reached 96,300 units and Bifidobacterium lactis with a sale which reached 35,000 units and also there was also a decrease in sales of other symbiotic products such as Lactobacillus casei in 2019 compared to the sale in 2018 and according to the student test there is no significant difference between the average sales during the two successive years of 2018 and 2019 (p = 0.496). The results show that the consumption and use of symbiotic in Morocco has undergone significant fluctuations trending towards a regression.

19

COVID-19 impact on moroccan small and medium-sized enterprises: can lean practices be an effective solution for getting out of crisis?

88%

Farissi A. , Driouach L. , Zarbane K. , El-Oumami M. , Beidouri Z.

Management Systems in Production Engineering

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2021

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tom nr 2 (29)

83--90

EN

The COVID-19 crisis hit the economy hard, it is a global situation of declining activity due to a highly contagious disease which has pushed the world to the brink of a deeper recession than ever. Small and medium-sized enter-prises constitute 92% of the Moroccan economic fabric, they are among the organizations most seriously affected by the current pandemic. This paper examines the problems that exist before and during this crisis, in order to raise major challenges and choose the ideal approach that will strengthen the competitiveness of these compa-nies. the analysis is based on secondary data and the literature to demonstrate the different constraints of these companies and to show the importance of lean manufacturing as the guarantor of industrial performance. the main question is how the alignment of Lean principals goes well with the desired improvement and with the constraints posed by this crisis, the primary objective of Lean is to provide the means to succeed and accelerate competitiveness. Finally, these circumstances can be a real opportunity to assist Small and Medium Moroccan companies to integrate the methods they need, and “Lean approach” is one of the best performance solutions to adopt in a post COVID-19.

20

Remote sensing monitoring of irrigated areas from 1972 to 2018 in the Guigou Plain, Middle Atlas, Morocco

88%

El-Bouhali A. , Cotonnec A. , Lebaut S. , Amyay M. , Thomas A. , El Ouazani Ech-Chahdi K. , Laouanne M. , Gille E.

Journal of Water and Land Development

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2023

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tom no. 56

249--261

EN

The cartography and quantification of irrigated fields in the context of decreasing rainfall constitute a key element for water resources management. Therefore, in this context, the use of remote sensing methods applied to Landsat-type images with a high spatial resolution for monitoring the changes in land use in general and irrigated crops, in particular, is highly relevant. This paper aims to present a method for mapping spatial and temporal changes in irrigated parcels in the Guigou Plain, located in the central Middle Atlas, based on Landsat images and fieldwork. For the years 1985, 1998, 2010 and 2018, the use of a supervised classification method based on the principle of machine learning, fed by precise field surveys, has made it possible to highlight a significant extension of irrigated areas to the expense of pastureland and rainfed crops. Over the entire period under consideration, the results obtained with good precision (98.5% overall accuracy) showed that the area under irrigated crops has increased from approximately 699 ha to 3988 ha, i.e. an increase of 570%. The corollary of this increase is strong pressure on the water resource, especially groundwater. This information on the total extension of irrigated plots can be taken as a reference in the perspective of reasoned management of water resources in the sector.