With globalization, the discovery of new opportunities and their realization can only be successful if companies have an adequate field of vision, that is to say the ability to collect, store, distribute and analyze information especially relating to the status and trends of socio-economic environment. Hence the development of business intelligence structures within companies. Almost all developed countries have realized the importance of this activity and have developed intelligence. Africa in general and Cameroon in particular, knowledge and practice of strategic intelligence is very low both in terms of market and state level. The empirical study of 62 companies in Cameroon allows first to highlight the characteristics of the practice of business intelligence companies in Cameroon and in a second, to justify the lateness in Cameroon relative to developed countries.
Improvement of the agricultural production as well vegetable as animal remains the single solution to fight against malnutrition. This study was initiated in the objective to evaluate the performances of growth between Clarias gariepinus and Clarias ngamensis and their hybrids. The test was carried out during seven days to the zoological garden of Lubumbashi. The eggs of the females of each species were mixed then separate in 2 batches of which one is fertilized by the two males of the same species and the other by the two males of the other species. After fecundation, the eggs were incubated in 9 plastic basins in completely randomized device: 3 for C. gariepinus, 3 for C. ngamensis and 3 for the hybrids with 3 repetitions. At the resorption (three days post blossoming), the larvae were divided into 9 batches of the 120 larvae each one. The results obtained show that C. ngamensis presents a weaker performance on all the parameters evaluated except for the relationship between the weight of the laying and the live weight of parent. While C.. gariepinus and the hybrids presented performances very high this last specie would be advisable to the farmers of Lubumbashi to improve their production.
A significant number of ecological phenomena can be modeled using nonlinear reaction-diffusion partial differential equations. This paper considers a system of reaction-diffusion equations with nonlocal initial conditions. Such equations arise as steady-state equations in an age-structured predator-prey model with diffusion. We use the non-standard finite difference method developed by Mickens, which is a scheme that preserves the positivity of solutions. Furthermore, this scheme is explicit and functional relationship is obtained between the time, the space, and age step sizes.
The objective of this study is to evaluate the spatial and temporal impact of carbon monoxide-based poisoning on the Moroccan population. This will be fulfilled through the study of the evolution of the impact as morbidity indicator. This assessment will determine the regional populations at risk to better focus the strategic efforts of awareness carried by Poison Control Center and Pharmacovigilance and all health stakeholders in Morocco.
Methods: adoption of analytical and cartographic study of the effects of poisoning caused by carbon monoxide, listed by the CAPM, on the populations of Morocco's 16 regions over a period from 1999 to 2013.
Results: The trend over time shows a continuous growth of the impact at the national level from 0.025 in 1999 to 0.074 per 1000 inhabitants in 2013.
The study of the evolution of regional impacts shows that the people of the Meknes-Tafilalt region are the most exposed to risks of carbon monoxide poisoning in Morocco with an average incidence of 0.112 per 1000 inhabitants. Next come the regions of Tadla-Azilal, Fes-Boulmane, Tanger-Tetouan and the Oriental with an average impact ranging from 0.075 to 0.087 per 1000 inhabitants.
Conclusion: The study shows that carbon monoxide poisoning in Morocco is modulated by the weather. Indeed, the highest incidences are recorded in regions with cold temperatures. However, we should not overlook the accidental nature of poisoning linked to the behavior of people in their careless use of heating systems.
Water stress is the major environmental stresses that affect agricultural production worldwide, especially in arid and semi-arid regions. This research investigated the effect of water deficit on five wheat cultivars grown in the greenhouse until anthesis. Mild (60%) and severe (30%) water deficit regimes were used with a control of 100% soil field capacity. The effect of water stress on parameters was investigated including; Relative water content (RWC), pigment content (chl a, chl b, carotenoids, chl tot), proline, soluble sugars, rate of K+ and Na+ were determined.
The results indicated that the effect of water deficit on biochemical parameters depended on the combination of water stress regime and wheat cultivars. The analyses carried show that under water deficit stress RWC was sharply reduced due a combination of leaf growth reduction and abscission. Water deficits impose leaf chlorophyll content decrease. In addition, wheat genotypes a more significant accumulation of solubles sugars than of proline. It results from them also a rate high from Na+ and a low rate of K+ at the time of the stress. Finally, the contribution of the physio-biochimicals parameters in the adaptation of the durum wheat depends closely on the genotypes and intensity of the hydrous deficit.
The labyrinth seals are the devices used in rotating machinery, they serve to restrict the leakage flow crossing a carter by a rotating shaft and to avoid the important friction at high rotating speeds. These devices can modify the dynamic characteristics of the line of the shaft in which they are integrated. The present work allows determining the effect of physical parameters on the dynamic coefficients. The object of this work consists to better control the flows within labyrinth seals and to be a better the stability of machinery.
In order to assess the degree of pollution of wastewater from the city of M'rirt, we conducted during 2014; a study of physical and chemical characteristics of the waters of reference collector L6-Sp. it collects almost all wastewater from the city and is located right on the road to Meknes. The results showed that liquid waste is loaded into mineral matter in terms of electrical conductivity (Avg. = 3055,25?S / cm
Aspergillus and Fusarium species are the major seed-borne fungi occurring on onion in Burkina Faso according to a previous study. In order to work out effective, available and healthy method of seed treatment against these fungi, this study aimed to evaluate the antifungal activity of three local botanical species. Mycelial growth of Aspergillus niger, Fusarium moniliforme, Fusarium oxysporum and Fusarium solani was evaluated in vitro on media prepared with aqueous extracts of Cymbopogon citratus, Eclipta alba and Portulaca oleracea. The health and germination quality of seeds previously treated with the best aqueous extracts were then evaluated. The aqueous extract of C. citratus significantly inhibited the mycelial growth of all Fusarium species at rates ranged from 42,8 to 92,0% but stimulated the growth of A. niger. Those of P. oleracea inhibited the mycelial growth of all tested fungi at rates ranged from 3,2 to 42,4% while those of E. alba stimulated the mycelial growth of all tested fungi. Seed treatment with the extracts of C. citratus and P. oleracea allowed reducing their infection rates by fungi of over 50%. However, the emergence and growth of seedlings were respectively reduced by P. oleracea and C. citratus compared to those of untreated seeds. Our study concludes that both aqueous extracts have proven antifungal properties. The appropriated shape and dose of use, that does not affect the seedling emergence and growth, should be sought.
Safflower (Carthamus tinctorius L.) is a member of the family Compositae (Asteraceae), cultivated mainly for its seeds, which is used as a source of edible oil and as birdseed. Traditionally, the crop was grown for its flowers, used for coloring, flavoring foods, making dyes (carthamidin and carthamin), and in medicine. Since Safflower is a drought tolerant crop, the objective of this research was the investigation of the seed yield and oil content of safflower under semi-arid conditions in eastern Algeria.
The results showed that
The arterial hypertension (HTA) of endocrine origin, account for over half of secondary hypertension causes. This etiological entity comprises several distinct disorders, the most common being primary aldosteronism (PAHs). Its symptoms are very unspecific, but the association of hypertension with hypokalemia, should guide the investigations to confirm PAH.
We report the case of a woman of 40 years old, who has a resistant hypertension to triple therapy, the systolic blood pressure is 170 mmHg and diastolic blood pressure is 120 mmHg, with hypokalemia 1.9 mEq /L, and a high urinary potassium at 87 mEq /24h. The report Aldosterone / Renin was very high. The scan showed an adrenal mass of 23.3 mm, without abnormality of the renal arteries. A treatment based on Spironolactone has been established, and adrenalectomy thereafter. The evolution was marked by normalization of blood pressure, of serum potassium, and the rate of aldosterone.
Primary aldosteronism by Conn adenoma, now covers 10% of hypertensive patients, and should be suspected when hypokalemia is present in untreated hypertensive, or resistant to antihypertensive drugs. The diagnostics have refined: they are now more sensitive, specific and indications are more accurate, allowing better management of patients.
In this paper, we propose a new communication strategy for transmitting high speed information over an electric propagation channel, type vehicle, based on the OFDM waveform (Orthogonal Frequency Division Multiplexing)
The main objective is to highlight the effectiveness of the OFDM waveform for embedded PLC (Power Line Communication). Simulations are performed to validate the model transmission via the electric vehicle network. Two approaches face, one operator optimizing the channel coding and the other the number of used subcarriers. Results of the study of the bit error rates are presented, as well as the important parameters of the transmission chain to adjust depending on the channel and data to be transmitted. Suites to different simulation results, we can say that the OFDM waveform has certain robustness in the HomePlug standard for transmissions in the automotive network type direct channel. Thus, the optimization work on the duration of OFDM symbols and the size of the FFT is needed to counter the frame losses related to the use of an indirect channel and impulsive noise your abstract.
Fibroadenoma is one of benign lesions which occurs in the breast. It is especially frequent in young women. The juvenile giant fibroadenoma is a rare type of fibroadenoma which is characterized by fast and massive growth. In general, it is a huge, firm, mobile and painless tumor with breast shape deformity. The diagnosis is made by Breast ultrasound and mammography. The differential diagnosis is phyllode tumors but they are rare before 20 years old. The treatment is surgical and consists on wide lumpectomy which must be esthetic to prevent recurrences. Here we present a 14 years old female patient to whom fibroadenoma was diagnosed and the wide lumpectomy was done with good improvements.
This paper discusses CSR as a dimension of perceived quality to predict customer satisfaction. Based on the methodological paradigm of Churchill and the Larcker and Fornell procedure, this research led to propose a model of social determinants of perceived quality, empirically identified. On the conceptual side, this article is an extension and an enrichment of researches on CSR and its influence on the company's image. On the managerial side, the proposed model will help utilities managers, organizer or operator, to develop appropriate quality approaches.
For better management of the use of insecticide in public health against Culex quinquefasciatus, an arboviral and filarial vector, a study was conducted at Natitingou, a town located in northern Benin, from October 2015 to March 2016, to evaluate the susceptible of this mosquito to insecticides and the mechanisms of resistance developed.
The protocol was based on mosquito collection during both dry and rainy seasons across the four areas selected in northern Benin. Bioassays were performed on adult mosquitoes collected from the field to assess the susceptibility of filarial vectors to insecticide-impregnated papers (permethrin 0.75%, delthamethrin 0.05%, DDT 4%, and bendiocarb 0.1%) following WHOPES guidelines.
Moreover, mosquitoes from the susceptible tests were used to search for the presence of the knock down resistance (Kdr) and the Acethylcholinesterase (Ace-1R) mutations.
Finally, F1 generation of the wild population of Cx. quinquefasciatus were used for biochemical analysis to target Mixed Function Oxidase (MFO), non-speci?c esterase (NSE) and glutathione-S-transferases (GST) enzymes.
This research showed:
1)-A wide spread of resistance to permethrin, delthamethrin and DDT was found in samples of Cx. quinquefasciatus despite the collection areas with 4%; 7% ; 19% and 60% as average of mortality respectively with DDT, permethrin, deltamethrin and bendiocarb;
2)- The kdr mutation was detected in all areas at various frequencies (0.8 to 0.88) whereas the Ace-1 mutation was found at a very low frequency (? 5%);
3) - Enzymes activities (oxidase, esterase and glutathion-S-transferases) were detected in all mosquito populations despite the areas of collection.
This work has highlighted the high resistance of Cx. quinquefascitus to the 3 classes of insecticides used in public health. Moreover, the high frequency of kdr and the presence of enzyme activity in Cx. quinquefasciatus will augment the existing data on the insecticide resistance of filariasis vectors and will be useful for making decision to control this mosquito.
The negligence of network administrators haves let intruders affect computer systems, generating significant losses in business. The most common security threats to computer crimes are aimed at obtaining privileged access to the system through dictionary-based attacks or brute force. The research analyzes the growth curve that has experienced in the last 5 years this technique and explains why its growth and popularity, detailing its performance, implementation process and to the extent that could compromise an organization if successful. Traditional methodologies considered essential to install multiple software tools to mitigate this threat managing to control, adjust and monitor internal security policies reducing network vulnerabilities. This document is intended to reduce the chances of success and the impact caused by attacks based on dictionary, for this a test scenario was created with virtualization tools, and additionally social engineering is explained as a primary factor in the development of this attack finally necessary security stockings were implemented to mitigate this crime.
The sedimentological and palynological study of 232 samples of cuttings from two servey drilled in the eastern ivorian coastline allowed us to characterize the aquifers of early Miocene. It falls within the context of the national drinking water supply from aquifers of the sedimentary basin in the said areas. Sedimentation consists of two facies (the quartz sands and clays). The predominance of subrounded to shiny and rounded grains reflect an aquatic transport of a relatively more or less long journey. Quartz subrounded grains, yellow orange and foxed show the presence of an oxidation and the mats grains reflect a transport by the wind. The granulometry study shows a dominance of sigmoidal facies
The DRASTIC methodology have been aplicated to determine the vulnerability to contamination of groundwater in the unconfined aquifer of R'mel (Larache, Morocco). The variables considered by this method have been mapped using the ARCGIS 9.3 software by mean the scan tool Spatial Analyst. The results were that 70,5% of the aquifer has a very low level of vulnerability; 17,9% low degree of vulnerability; 6,7% a moderate vulnerability, while the remaining 4,8% have no vulnerability. The application of this method was performed for the first time in this area by mean of this study and the results provide a basis for environmental management, land planning and its suitability for different uses and a starting point for future research aimed at protecting the aquifer contamination.
The vinegar is obtained by a double fermentation of two measures of juice of mango with a measure of water in the presence of the yeast Saccharomyces Cerevisiae for the first fermentation and for the second fermentation, the wine obtained in the first fermentation is added to 10 % of its volume by a mother of vinegar containing the bacterium Acetobacter Aceti. The fermentation lasted 47 days. From the microbiological point of view, the elaborate vinegar is exempt from any pathogenic germ. In spite of its relatively low acidity pH approximately 3, its rate of soluble solids brought up approximately 5,4
The main objective of this work is to determine the trend of the vegetative activity of the forests of eastern Algeria from the processing of a series of MODIS satellite images type of medium resolution (250m) over 10 years (2002-2011). These allow us to track the status of forest vegetation of eastern Algeria through the vegetation index which is defined as the normalized difference spectral reflectance measurements acquired in the wavelength areas Near Infra -Red and red. The Maps from this contribution we have to identify 19418 pixels that tend toward regression with 3282 pixels are displayed at the wilaya of El Tarf, representing 17% of all degraded forest massifs and 1.2 % of the total forest cover of eastern Algeria. Among the studied forest ecosystems, cork oak seems the essence most threatened by degradation with a significant area of 64425ha, more than half (53.08%) regressed the surface are occupied by the species. It is followed by the Aleppo pine with 29287,5ha or 24.13% of total regressed surfaces. In conclusion, the maps from this study are alarming regional picture of the evolution of forest vegetation in eastern Algeria during the decade (2002-2011), which requires a comprehensive and multidisciplinary study of these ecosystems foresters to better determine the environmental factors (biotic or abiotic) responsible for this notable degradation.
This study aims to improve the productivity of rice crop in the Mandailing Natal (Madina) district from 4.7 tons / ha to 10 tons / ha. This experiment uses bio compostable material and urine of goat manure, which is widely available in the district of Madina. Increasing rice production management system using integrated crop management (ICM) of lowland rice irrigation was recommended by the Agriculture Ministry Research and Development Board of Republic Indonesia. In rice plants using compost noted that the plant height reached 127 cm, 28 cm panicle length, number of tillers per hill 19, and BWD scale of 3.5 after 60 days after transplanting (DAT). While the rice plants without the use of compost plant height of 116 cm recorded on, panicle length 26 cm dap, the number of 10 tillers per hill, and BWD scale 4 after 60 days after transplanting (DAT). Applications addition of compost and bio urine on rice crops planted with Inpari-13 is able to produce rice as much as 10.4 tons / ha. Rice paddy untreated bio compost and urine obtained rice yield as much as 6 tons / ha. On the other hand the average production of rice paddy crop in the district of Madina 4.7 tons / ha. The high yields in rice paddies without compost treatment in this study due to the mud of a rice field with composting flowing into the fields of the untreated compost so that nutrients are absorbed by rice paddy fields. The use of compost and bio urine rice crop in this study, increased rice crop amounted to 121%.
The introduction of Corporate Social Responsibility (CSR) in India in a statute is projected as a path-breaking initiative in the process of inclusive growth. As authentic data is likely to be available only during October-December, 2015, we have a quick look on the trends and volumes of Government expenditure in similar social sectors, and the size of the resources that might be available for such efforts under CSR, by a conservative estimation using published figures, in an effort to de-mystify the concept, its reach and the real purpose it could serve.
Daily rainfalls as they reach a certain threshold, induce severe flooding in some township of Abidjan district during the largest rainy season. This paper focuses on defining and identifying of heavy daily rainfall threshold linked in flooding over the Abidjan district.
The heavy rainfall maximum and critical occurrence period ascertainment has been possible thanks to the likelihood occurrence (from 0 to 100%). Identifying heavy rainfall threshold related to flooding-causing started with classification and definition of precipitation recorded from 2012 to 2014 over all stations of Abidjan district with the percentile. Then, using the rainfall total sliding window technic helped finding a threshold amount inducing severe flooding.
The critical period rainfall and flooding occurrence (likelihood occurrence of 75%) start from May 27th to June 22th. Rainfall total sliding and past flooding analysis revealed a threshold amount precipitation around 100 mm. Henceforth, this threshold could helped forecaster offices by issuing advisories and warnings for flooding when precipitation expected, at any location of Abidjan district, is near or exceeds the amount of 100 mm.
The container making a stopover at Tangier Med or during the trip is likely to suffer a damage due to shock, drop or rough handling which rises prevention and attention. Hence, the need for a good management of container terminals.
Following a case study carried out within a world-class company, a subsidiary of Maersk line, APM Terminals Tangier, is an essential link in the international transport chain whose containers ensure, in principle, an optimal routing security involving a successful completion of the process. In light of these elements, the issue of damaged containers is of an outstanding importance.
This paper proposes a general assessment of container damages in order to restrict the scope of these and determine the safest way to handle and stack the different types of containers.
Exchange rate in Moroccan economy has been considered a critical push-forward force for domestic inflation which leads to the depreciation of currency value. Exchange rate is the price for which the currency of a country can be exchanged for another country's currency in the foreign exchange market. This article seeks to adopt two stochastic models for estimation of exchange rate EURO/MAD. Firstly, it aims at the investigation of stochastic models (two models) to show the variation of exchange rate, and, secondly, try to draw a comparison between these models in terms of error estimation performances and, as a result, to recommend a stochastic model for exchange rate EURO/MAD.
In this paper, the geometric Brownian motion (stochastic process without mean reversion propriety) and Vasicek process (stochastic process with mean reversion speed), are used to model the exchange rate EURO / MAD, then they are compared in terms of average estimation error.
In order to calculate models parameters daily close price of the Euro/MAD from 01/12/2008 to 01/03/2016 (2242 values) can be taken from Casablanca stock exchange and ,hence, two stochastic models for exchange rate is to be derived, and compared. According to simulation results, we can finally recommend one of the two models.
The paratubaires cysts are usually benign disease entities, frequently encountered in clinical practice, but rarely complicated twist; hence the importance of this work and we report the case of an adnexal torsion on paratubal 8cm cyst in a patient of 24 years.
Myasthenia gravis is a neurological disease that affects favorite with the young woman of childbearing age. The study of reciprocal interactions between gravis and pregnancy is essential to know for proper management of these patients whose follow-up should be done in close collaboration between obstetrician, neurologist, anesthesiologist and pediatrician.
We study a set of particles of spin 1 subjected to an oscillating field. We calculate the steady states of this system using the Floquet theorem and the method of resonant medium developed to the third order with respect to the oscillating field intensity.
The calculation of the magnetization of the overall system allows one to show the saturation of absorption, and gives, to order three, asymptotic terms of both the dispersion and the absorption where nonlinear effects appear.