Transaction processing systems (SPT) are the union of software, network equipment, servers, among others, that are used to work with large volumes of data. The inadecuated design of an SPT in one of its processes or the malfunction in one of its components or elements, it can directly impact the performance of an application and the company operation environment or product depending on the system objective, it could cause waste of time in process responses, it could have an impact on the total failure of the service. Failure to provide this service properly could cause economic losses in a company or organization.

The effect of mixed bacterial biofertilizers containing nitrogen fixers, phosphate solubilizers and potassium solubilizers was investigated against individual applications. One strain each of Rhizobium, Azotobacter and two strains each of phosphate and potassium solubilizers were isolated, prepared and applied individually while a consortium of the inoculum was prepared by mixing each strain with the carrier. Each preparation was applied as seed treatment to study their effects on beans and corn plants. The shoot length, pod size, flowering, stalk formation, yield and other growth parameters were monitored. The mixture of bacterial preparations enhanced the plants’ health, growth parameters and yield of beans and maize plants significantly at a significant value of p<0.05, when compared to the single bacterial applications and control. The results proved that the mixed biofertilizers increased the growth, and yield in addition to shorter crop cycle compared to the control and individual bacterial biofertilizers.

To address the problems related to the teaching of life and earth sciences and to develop effective educational activities, the Moroccan Ministry of National Education has selected and trained competent teachers: aggregates in life and earth sciences with both high-level general scientific knowledge and pedagogical and didactic skills evaluated respectively by written and oral tests. The candidates for the Aggregation competition are double: - Official candidates with initial training in the preparation cycle for Aggregation; - Free candidates from universities (Master, DEA, DES, Doctorate), who enter the competition directly without specific prior training. However, this competition is increasingly posing problems for candidates: the overall success rate in this competition is 16.8% among official candidates, but no free candidate was able to succeed even in writing test of this competition. This work aims to clarify the problems and difficulties faced by candidates in the written competition. To do this, we proceeded to a rigorous analysis of the results of the written competition to highlight the jury's recommendations, also to a critical analysis of the preparation programs for this competition to measure their alignments with the specificity of the written subjects of the competition. Thus, we were able to demonstrate, that the consequences of university teaching are palpable on the results of the candidates to the competition of the Aggregation of Life and Earth Sciences.

The Ovarian Carcinosarcoma also known as malignant mixed Müllerian tumor is a rare malignant neoplasm that histologically contain both epithelial and stromal components. This aggressive tumor is found not only in the ovary but also in other organs of the genito-urinary tract, including uterus. It is usually diagnosed at older age and advanced stage. The Ovarian Carcinosarcoma patients have very poor prognosis. Surgical treatment is a determining factor for the survival of patients. The response rate to chemotherapy is about 20 %. We illustrate the article with a clinical case reporting the positive diagnosis of ovarian carcinosarcoma.

The Kahoot is a Web 3.0 App that provides quizzes and jumbles in a “game-show” type format. Scores are granted for correct responses and participants instantly get the results of their responses. This study scrutinizes the role of using Kahoot in the enhancement of English Vocabulary of Moroccan EFL University Students. Ninety-seven third-semester Moroccan students of English at Sidi Mohamed Ben Abdellah University in Meknes were targeted. The aim of this quasi-experimental study is to analyze the importance of incorporating Kahoot as a Web 3.0 App inside classroom to enrich university students’ vocabulary, which contributes to honing language skills mainly writing and speaking. The project thus introduces the extent to which Kahoot paves the way for students to understand vocabulary in context. The participants were taught with the help of Kahoot activities, and the project lasted eight weeks. Analyses of the questionnaires’ responses prior to and after the exposure to Kahoot, which were administered to a convenient sampling, reveals it significantly contributes to students’ vocabulary richness. Indeed, the research seeks an alternate teaching approach that would assist students in widening English vocabulary via online gamification. Faculty members may hopefully generate novel pedagogies from this paper’s outcome. The ultimate results imply that Kahoot contributes to enriching EFL students’ lexicon.

New expressions of back surface recombination of excess minority carriers in the base of silicon solar are expressed dependent of both, the thickness and the diffusion coefficient which is in relationship with the doping rate.

The water of the river N’djili is used for several facts. Indeed, due to a lack of the servicing in drinking water in several districts of the city of Kinshasa, several residents use the water of this river as water of bathing, of cooking, of washing of linens, of drink, of watering of the gardens and washing of the gardening products (vegetables and tubers), etc. There is place to underline that biggest user of the water of the river N’djili is the REGIDESO that extracts every day a nominal volume equivalent to ±550.000 m3 of raw water in order to purify it to go against at least ¾ of the population of Kinshasa in drinking water. Yet several human activities susceptible to damage the quality of the water of this river are identified in its perimeters very brought closer. The danger is that in case of pollution of the river N’djili, several score of thousands of Kinshasa’s population should be exposed directly to water illnesses with risk of the epidemiological propagation, while the REGIDESO will be obliging to use big quantities of reagents to succeed in purifying this water polluted without forgetting the risk of resistance of some badly known pollutants. It will be able to be obliged however to resort to a lot of more refined techniques and expensive. A resource of as big importance had to absolutely be protected while the activities capable to harm to its good working should be regulated restricted either.

Through this article, the authors point out the factors shaving caused the accelerated erosion which destroys the ecology of Lumbi quarter in the surroundings of Kikwit town. Besides, they evaluate the level of damages caused by the erosion phenomenon on physical and human environment, and suggest some solutions to the situation.

In order to identify the factors of pregnant women malnourished in Kinshasa a study was conducted among 2,349 pregnant women. The results show that the malnourished pregnant woman in Kinshasa is illiterate (p <0.05), with food stress in her household (p <0.05), has at least one disease for which she is not supplemented with iron ([OR] 1.21), not using insecticide-treated mosquito nets [OR] 1.18), not dewormed (p <0.05), but sometimes receives preventive and intermittent malaria treatment (p <0.05) or health and nutrition education (p <0.05)".The pregnant woman malnutrition is amplified by the unfavorable cultural factors (lack of access to nutrition and health education, illiteracy), by the household's nutritional stress as well as by the non-use of ITN within Household. Malnutrition is even higher when the level of education of pregnant women is low (p = 0.01). The determinants model challenges more than one actor and the target itself. The responsibilities of decision-makers at central level are also challenged to organize an effective response. Pregnant women themselves should continually cooperate and adhere to strategies. The evidence generated remains necessary to help in the improvement, readjustment of interventions for pregnant women.

Based on a dynamic frequency study, the thermal behavior of a wall consisting of a concrete slab contiguous to a panel of compressed rice straw is presented. The thermal behavior at the interface of the two materials is modeled by a thermal contact resistance. The insulating nature wall thus made is studied according the order magnitude of contact resistance: the perfect contact (Rc=0) extreme contact defects (Rc very high). The analysis of temperature and heat flow density curves show that the insulation effects are all the greater as the defects are important.

A cross-sectional descriptive study was conducted at University Clinics in Kinshasa to describe socio-demographic factors favoring obstructed labor. The survey data included deliveries during the period from January 1 to December 31, 2012. The results of our analyzes included 346 deliveries. Three most significant variables are associated with dystocia at the error threshold of 5%: the low level of education (X2: 29,12), the low attendance at prenatal consultation is less than 3 CPN (X2: 4, 95), and admission to maternity in indirect mode (X2: 5.82). This study shows that socio-demographic factors are particularly important for obstructed labor and increase the risk of maternal death.

In the context of funding the economic activities of the population in sub-Saharan Africa, microfinance institutions play a major role in providing credit, as well as in the fight against poverty. It is in this sense that our study focuses on the granting of credit from the Nyawera savings and credit cooperative in the fight against rural poverty in the Irhambi-Katana grouping. Analysis of the data and interpretation of the results showed us that the credit granted by the institution has not really succeeded in reducing poverty in this report. At the end of the presentation, analysis and interpretation of the data, we found: - Most loan recipients affect it in small business, especially agriculture, livestock and social needs. This proves that the following hypothesis: "The activities financed by the credit granted by Nyawera savings and credit cooperative would be small trade" is confirmed, the results show us that all economic activities are financed, but especially small trade. - The majority of our respondents feel the need for a loan because the capital invested in the activities is not sufficient. This result leads us to find that the following hypothesis: "is confirmed, because according to the surveys, the economic agents of the Irhambi-Katana grouping are not financially sufficient and that is why they do not have access to credit because the condition to have it they should open an account and have enough money within it. That is why our surveys show that the establishment of the Nyawera Savings and Credits Cooperative has not fought enough against poverty in the Irhambi/Katana grouping.

In order to have the Kahuzi-Biega National Park considered a World Heritage Site, it is essential to have the indigenous population (the pygmies) to be evicted. They were not happy with the way they were kept out of their natural environment, because they live from hunting and gathering that can only be done in the forest, unfortunately for them being a reserve. Indeed, the pygmies found themselves outside the park but they still have the courage to allow the Congolese Institute of Nature Conservation (ICCN) to protect the ecosystem in Kahuzi-Biega Park. They are also major guides and collaborators for scientific research. They contribute very significantly to the work by providing accurate information on the species of the park: identification, distribution, eco-ethology, use of the environment, traditional use of species by pygmy communities. It is often that they deserve to be co-authors of the scientific work on the Kahuzi Biega National Park (PNKB). In the fight against poaching, pygmies are essential by the watching they provide and the information they provide about the movements of poachers.

The article aims to highlight body development through weight monitoring and other morphometric parameters of Clarias gariepinus reared in concrete tanks and floating cages for 150 days. Then, 6400 individuals with average body weight (103.91 ± 32.74 g) and initial total length (24.08 ± 2.31 cm) were distributed in two floating cages (5 x 5 x 2.5 m3) on Lake Toho in Benin and two concrete tanks (3.8 x 3.8 x 1.5 m3) at densities of 2000 individuals / cage and 1200 individuals / tank respectively. The fish were hand-fed three times a day until apparent satiety with a pelleted commercial feed containing 45% crude protein. The results obtained showed better performance in floating cages than in tanks and were respectively as follows: total length (53.37 ± 6.31 vs 43.47 ± 4.56 cm), standard length (48.10 ± 5.58 vs 38.86 ± 4.32 cm), pre-dorsal length (15.20 ± 2.16 vs 12.46 ± 1.62 cm), length of the head (9.74 ± 1.92 vs 7.48 ± 1.13 cm), dorsal fin base length (30.19 ± 4.46 vs 24.46 ± 2.97 cm), interorbital width (5.78 ± 1.89 vs 4.50 ± 0.61 cm), body height (6.45 ± 1.14 vs 5.20 ± 0.80 cm), height of the caudal peduncle (4.12 ± 0.66 vs 3.32 ± 0, 49 cm), body weight (1245.43 ± 479.33 vs 661.91 ± 230.51 g). This confirms that when conditions permit, the use of floating cages is to be promoted.

The ability of certain vegetable crops has been proven in the accumulation of heavy metals. Among these species is lettuce (Lactuca sativa L.). In Burkina Faso, the ability of some local species to accumulate heavy metals has also been demonstrated. Among these species we have lemongrass (Cymbopogon citratus). To promote their introduction into cropping systems, a study was initiated to evaluate the effects of lettuce-citronella associations on the transfer of heavy metals in lettuce organs and soil chemical parameters. The experimental setup was in completely randomized factorial blocks comprising three treatments and three replicates. Treatments compared pure lettuce (T0) culture with alternating lettuce-lemongrass combinations on the same line (T1) and citronella lettuce where lemongrass plants are placed in interline lettuce (T2). The effects of these associations on the transfer of heavy metals in lettuce were evaluated. Their effects on soil chemical parameters were also evaluated. The results obtained show a significant reduction (p> 0.05) of the amount of lead accumulated in the leaves of lettuce compared to that of lemongrass for treatments T1 and T2. As for the chemical parameters of the soil; cation exchange capacity, organic matter, assimilable phosphorus and total potassium were significantly affected by the associated culture compared to the pure culture of lettuce. The promotion of lettuce-citronella associations can be considered for the reduction of lead accumulation by lettuce.