Rubber seedling rootstock cultivation is the first step of rubber budding propagation. However, there is still a lack of systematic studies investigating leaf phenology effect on rubber seedling nursery. In this study, leaf phenology, stem diameter, plant height and the chlorophyll parameters were observed at six periods. The results showed that bronze stage was the rapid growth and regulation stage of plant height, bronze stageⅠwas the rapid growth and regulation stage of stem diameter, and light green leaf stage was sensitive to environmental temperature. Taken together, leaf phenology affects the growth of rubber seedlings, and understanding phenological effects helps to regulate the phenological process to raise rootstock seedlings.
This work is a proposal of methodology for the Development and implementation of web systems in an agile way, following the Build-Measure-Learn cycle. At each stage of the cycle, methods and tools are defined to create a Minimum Viable Product (MVP), in order to quickly deploy the system to begin a stage of functionality and usability tests, and thus obtain feedback for the creation of the next MVP, in this way the developed product will scale through the new needs that the client has, we integrated the tools and methods defined by the Extreme Programming (XP) methodology for the build phase and the ISO / IEC 29119 standard for the testing stage. The implementation of this proposal methodological it was made in the development of the File from Aspirants’s System to the Instituto Tecnológico de México /Campus Apizaco.
The prevalence of celiac disease in the general population is 1%, it is more common in patients with type 1 diabetes. Our objective is to determine the prevalence of anti-transglutaminase type IgA antibodies in children with type 1 diabetes. For this, we conducted a descriptive retrospective study, carried out within the laboratory of immunology-serology of the CHU Ibn Rochd of Casablanca. We included all requests for research of anti-transglutaminase type IgA antibodies in children with type 1 diabetes, over a period of 3 years. Our study identified 480 children with type 1 diabetes. The median age was 9 years with extremes of 1 to 14 years, 247 children were male or 51.5% versus 233 female or 48.5%, the sex ratio (M/F) calculated was 1.06. Anti-transglutaminase type IgA antibodies were positive in 70 patients, a prevalence of 14.6%. We compared the seropositive group (n=70) with the seronegative group (n=410). There was no difference between the two groups for age. However, female children were more affected in the seropositive group. This study confirms that celiac disease is common in diabetic patient’s type 1. Early diagnosis of celiac disease is very important to prevent long-term complications. These complications can be prevented by a simple gluten-free diet.
The present work aims to evaluate the efficiency of a biochar biofilter to purify the water of an aquaponic system according to the density of fish. For this, a unit has been set up at the Rural Engineering Department of the University of Dschang to conduct the tests. The biofilter made up of biochar based on corn cobs and pozzolan was set up as well as six columns of hydroponic system each connected to a biofilter and each containing three basil plants. The experimental device consisted of two densities DP6 and DP9 representing respectively the densities of 6 and 9 catfish per tank. Each density representing a treatment was mounted in triplicate. The fry were fed at 5% of their biomass at 2 frequencies (morning and evening). The physico-chemical parameters were measured once a day for the most part. Plant growth characteristics were measured on the 14th and 28th day after transplanting. Those relating to the growth of fish on the 28th and 46th day after loading. The results showed that the physico-chemical parameters of the water remained within the standard range required in aquaponics whatever the density, thus reflecting the positive effect of the biofilter. The DP6 fish recorded a higher weight gain of 15.26 g against 13.87 g for the DP9 after 46 days of rearing. As for the basil plants, those of the DP6 recorded the greatest average height of 30.88 cm. However, no significant difference was recorded between the treatments for either fish or plant growth. Subject to future work aimed at evaluating the functioning of the system over a relatively longer period, the installation of the biofilter makes it possible to increase the stocking density of the fish and, in turn, the yield.
The purpose of this study was to determine the hypoglycaemic effects in leaf and bark of Sclerocarya birrea, used in traditional medicine for diabetes. In addition, two extracts were prepared from this plant: hydromethanolic and hydro-acetonic. The experiments were carried out on normoglycemic and diabetic guinea pigs by injection of a single dose of glucose (4 g/kg of body weight). Phytochemical screening are carried out according to standard analytical methods. Polyphenols, tannins and flavonoids were the main phytochemical constituents of the extracts. The results showed that the oral administration of the different extracts of Sclerocarya birrea at doses of 500, 700 and 1000 mg/kg of body weight led to a significant reduction in blood sugar (p < 0.05), similarly to antidiabetic action of glibenclamide (10 mg/kg of body weight). Whatever the organ and the extraction solvent, the doses of 500 and 700 mg/kg of body weight induced dose-dependent hypoglycemia, just like glibenclamide, the glycemia of normoglycemic and hyperglycemic guinea pigs. These results show that the metabolites revealed in the extracts could be responsible for its hypoglycemic effects in glucose metabolism. Thus, supported by a complete chemical study with a view to isolating the active substances responsible for the antidiabetic effect in perspective, is possible to formulate from this plant a phytomedicine with potential for diabetes which make possible their uses by populations for treatment of diabetes.
Investigations have been carried out with the aim of producing secondary metabolites in vitro by cell cultures of Zanthoxylum zanthoxyloides. Cell dedifferentiation from explants was induced in the presence of 2,4-dichlorophenoxyacetic acid or 1-naphthaleneacetic acid in combination with benzyladenine. HPLC analyzes revealed the uneven accumulation, in diversity and quantity, of a number of secondary metabolites in these cell cultures. These secondary metabolites are not synthesized by all cell strains with the exception of hesperidin which is present everywhere. Quantification of hesperidin and chelerythrine showed that 2,4-dichlorophenoxyacetic acid inhibits their synthesis unlike 1-naphthaleneacetic acid and light which seem to stimulate it. This study shows that it is possible to produce secondary compounds in vitro by cell cultures of Zanthoxylum zanthoxyloides.
In Ivory Coast, the decade of politico-military crisis has led to the degradation of national parks, After this crisis, knowledge of the wildlife diversity of these forests is needed to propose appropriate conservation measures. For this purpose, this study was conducted in the Mount Péko National Park (MPNP), located in western Ivory Coast. It aims to inventory the means and large mammals, to establish their spatial distributions and to determine their conservation status as well as the threats of human activities that weigh on them. The methodology used consisted first of all in surveys with the managers of the park and the local populations in order to have data on the fauna of the region. Pedestrian surveys inside the park were organized. At the end of this study, ten (10) species belonging to four (4) orders and six (6) species from (2) orders respectively of large and medium mammals were confirmed from direct and indirect observations. Most of these species occur in the surveyed areas except Cercopithecus campbelli, Civettictis civetta, Procavia capensis found only in the north and Syncerus caffer nanus observed only south of the park. Among the large mammal species, in addition to Loxodonta africana (VU), Pan troglodytes verus (EN) and Cephalophus sylvicultor (NT), all other species are listed in the category of Least Concerned (LC), according to IUCN. Similarly, apart from Phataginus tricuspis classified as Vulnerable (VU), all species of mammalian means are included in the LC category. However, the sustainable conservation of these mammals is threatened by various anthropogenic activities within the MPNP. In order to safeguard the biodiversity of the park, it is necessary to implement the management and management plan of the park, to involve all the stakeholders in the actions of monitoring, communication for a change of behavior and in real management MPNP. Scientific studies and ecological monitoring activities will need to be carried out to collect more comprehensive data as a tool to guide the sustainable management of MPNP.
This article analyzes the effects of the real exchange rate on the DRC's trade openness in COMESA. The concrete question is how the equilibrium real exchange rate (RRC) induces the DRC's trade openness within the COMESA zone and the fundamentals of the economy which determine its level in the long term. The study is carried out on the basis of the Behavioral Equilibrium Exchange Rate (BEER) approach, because of its delicate adaptation to empirical assessments is more practical for developing countries, following the gravity model of Aristotelous. The results obtained show that there is a direct effect between the real equilibrium exchange rate and the level of trade between the DRC and its partners. Also, the paper establishes that the equilibrium real exchange rate improves the level of exports but deteriorates that of imports. These results confirm the research hypothesis.
Knowledge of the petrophysical parameters of potentially reservoir levels remains a major concern in the study of sedimentry basins. In addition, numerous studies carried out in the offshore basin of Côte d'Ivoire have revealed reservoirs of the Cretaceous age. The present study is part of a perspective of petrophysical characterization of sandstone and sandy intervals of the Cretaceous of the Abidjan margin. To do this, two holes KN1 and KN2 located in the eastern part of the Abidjan margin were analyzed. Lithology reveals clay, sandstone, sand, limestone, marls and silts containing carbonaceous debris, glauconite and pyrite. The analysis of the petrophysical parameters made it possible to detect potential reservoirs of good quality with an average to good permeability at sandstones and sandy layers. These reservoirs contain fluids (water, oil and gas) in Campanian, Cenomanian and Albian.
The study aimed to clarify the role of the roaming administration in achieving job satisfaction for human resources management in institutions in the United Arab Emirates, as a case study on the Roads and Transport Authority.
We relied on presenting a theoretical framework consisting of four chapters. The first chapter dealt with human resource management in institutions, explaining through it the concept of human resources in institutions and the reality of human resources in the UAE, while the second chapter, which dealt with job satisfaction in institutions, is based on a statement of concepts related to it and the influencing factors. It and the most important general characteristics of job satisfaction, while the third chapter, which dealt with management by roaming being the subject of the study, through which we dealt with the related concepts and the most important administrative processes related to management by roaming. We used a sample consisting of all human resources working in the Roads and Transport Authority, and I used the questionnaire as a tool for all study data.
The study summarized a number of results, the most important of which is that the sample confirms the importance of roaming management in detecting problems before they occur, applying accounting, identifying strengths and weaknesses, and making sure that oversight is comprehensive for all areas of work, which achieves job satisfaction for employees, and also the importance represented by roaming management as one of the supervisory methods at work and directing employees, which achieves job satisfaction if it is applied. The importance of the administrative tours carried out by managers develops and increases the human relations between the leadership and the workers through the continuous presence at the work site, overcoming obstacles and working to solve the problems facing the workers.
The study suggested the necessity of activating management by roaming in institutions as one of the modern administrative methods in management and spreading the culture of management by roaming among managers and workers and creating an appropriate atmosphere to strengthen human relations, creating an encouraging atmosphere for work and that gives confidence to workers, which leads to raising the morale of workers and thus achieving goals.
This study was conducted in the CCLK health area, Goma health zone, North Kivu province in the DRC. It aimed to identify the factors associated with the abandonment of reversible modern contraceptive methods among users, their recourse after abandonment as well as the consequences that follow in the period from January 01 to December 31, 2022. After collection, tabulation, analysis and processing of data by SPSS software, we arrived at the following results:.
- 24.4% of dropouts are due to giving in to rumours; 17.1% of dropouts result from the occurrence of side effects; 9.8 ≈10% abandoned their methods for not having received sufficient information during the first contact; 4.9 ≈5% of users were influenced by their religion to abandon their methods and 2.4% abandoned their methods following the opposition of the partner. It should be noted that apart from the apparent prevalence, no statistically significant association was revealed for each of these variables.
- 18.37% of users do not use any method after giving up; 11.23% use condoms; 10.20% abstain from sex, 7.14% withdraw (coitus interruptus) and 3.6% use emergency contraception.
- 75.6% of users claim to have had consequences after abandonment compared to 24.4% who did not. Among these consequences, we cite: unfree sex with 46.34%, regular fear of pregnancy with 24.39% and so 7.31% had an unwanted or unplanned pregnancy after abandonment.