oalib

OALib Journal期刊

ISSN: 2333-9721

费用:99美元

投稿

时间不限

2019 ( 40 )

2018 ( 277 )

2017 ( 301 )

2016 ( 380 )

自定义范围…

匹配条件: “ K. Anani” ,找到相关结果约138555条。
列表显示的所有文章,均可免费获取
第1页/共138555条
每页显示
Fracture-Dislocations of Lisfranc Joint in Lomé (Togo)  [PDF]
Atchi Walla, Anani Abalo, Agbékponou Lagnéblé, Sényo Tsolenyanu, Tchaa Towoezim, N. K. Kombaté, Michel Assang Dossim
Open Journal of Orthopedics (OJO) , 2016, DOI: 10.4236/ojo.2016.61003
Abstract: Introduction: The purpose of this prospective study was to describe the clinic pathological varieties of fracture-dislocations of Lisfranc joint and outcome of treatment. Patients and Methods: This study was conducted on 21 cases of fracture-dislocations of the Lisfranc joint treated in our orthopedics trauma unit from 2010 to 2013. We selected middle foot pure dislocations or associated with Lisfranc joint bone fractures. Classification of Myerson was used to characterize the lesions. The results assessment criteria were clinical and radiological for foot and Massari score. Results: Fourteen (14) patients were male. The average age was 34.7 years. Five (5) clinic pathological forms were met by relying on the classification of Myerson; 4 cases of type A; 5 cases of type B1; B2, 6 cases; 4 cases of type C1 and 2 cases of type C2. There were eight cases of pure dislocation and 13 dislocations were associated with fractures (metatarsal in 11 patients, cuneiform in 5 patients, cuboid bone in 2 patients and enucleation fracture of the medial cuneiform in 2 patients). It was noted 10 cases of skin openings. Treatment consisted on open reduction in all patients and stabilization by pin complemented by a foot plaster for 6 weeks. Four (4) immediately arthrodeses were made. All patients were followed up 7 month to 4 years (mean, 30 month). According to the criteria of Massiri, treatment outcomes were excellent in 19% of cases, good in 28%, fair in 30% and poor in 23%. Conclusion: In our context, these lesions are often open and associated with fractures of Lisfranc joint skeleton and treated after a period more or less long and sometimes, we face lesions totally old. Immediately arthrodesis can be a lasting solution and should not be overlooked.
Elbow Dislocation with Ipsilateral Galeazzi Fracture: A Case Report  [PDF]
Anani Abalo, Koulima K. Akloa, Yaovi Yannick Dellanh
Open Journal of Orthopedics (OJO) , 2016, DOI: 10.4236/ojo.2016.69036
Abstract: Elbow dislocation associated with ipsilateral Galeazzi fracture is a rare pattern of injury. Only seven cases were reported in the literature. We reported another case in a 42 years old man. Closed reduction of the dislocated elbow joint was immediately performed under sedation. Because the patient did not want surgery for radius, it was decided to manage the fracture conservatively. The lack of clinical improvement motivated operative treatment for Galeazzi fracture 56 days after injury. We have discussed the treatment option and the result obtained. The prognosis of this associated injury is related to the DRUJ dislocation, which should not be misdiagnosed.
Assessment of Microbiological Qualities of Yam Chips Marketed in Togo
Karou D Simplice,B. Djeri; Y. Ameyapoh; K. Anani; K. Soncy; Y. Adjrah and C. Souza
Advance Journal of Food Science and Technology , 2010,
Abstract: Yam is one of the most staple foods in West African countries and provides an important part of the energetic for peoples. The fresh tuber contains a lot of water that makes it preservation very difficult. This study was undertaken to assess the health risk of yam chips obtained from the traditional draw-plate consisting of transforming the fresh yam tuber into dehydrated product (dried yam) known as “cossettes” which is less perishable and propose strategies to control risk points. The approach of HACCP (Hazard Analysis Critical Control Point) concept using the standardized routine methods adopted in the UEMOA (West African Economic and Monetary Union) countries allowed us to do microbiology’s assesses. The results of this study showed that the yam chips are contaminated to various degrees by Mesophilic germs (Bacillus sp), coliforms and molds (Aspergillus niger, Aspergillus flavus and Aspergillus glaucus). Salmonella was not found. This bacteria and moulds isolated in the yam chips contain some species involved in food borne illness. The practice of dry yam chips was don to overcome the loses of the yam fresh tuber. The bad conditions of this work affect the hygienic qualities of dry yam, which can present the health risk of consumers.
Wrist Septic Arthritis Due to Streptococcus pneumoniae Revealing a Selective Immunoglobulin G4 Subclass Deficiciency: A Case Report  [PDF]
Atchi Walla, Anani Abalo, Malewé Kolou
Open Journal of Orthopedics (OJO) , 2015, DOI: 10.4236/ojo.2015.511047
Abstract: The pneumococcal septic arthritis is uncommon in healthy adults. In most cases, it occurs in patients with immune deficiency. Its exceptional location at the wrist can maintain doubt with rheumatic causes which are more frequent. IgG4 deficiency found in this patient was the only cause that could be impugned. We report the case of a young woman of 46 years without any evident cause of immunodeficiency and any particular risk factor, managed for septic arthritis of the wrist due to Streptococcus pneumoniae. This case without any apparent risk factors demonstrates that pneumococcal infection in a more distant articulation of the ENT is still possible. Scan has been a very significant contribution in confirming the positive diagnosis that leads to surgical drainage. The approach of the systematic search for the gateway must be done. In the study of the patient’s immune status, the realization of the protein profile could be interesting and then guide the practitioner in the decision to vaccinate the patient against Streptococcus pneumoniae if he was not. We recommend looking always for a cause of immunodeficiency including primary Ig defiencies even among adult.
High dimensional Sparse Gaussian Graphical Mixture Model
Anani Lotsi,Ernst Wit
Computer Science , 2013,
Abstract: This paper considers the problem of networks reconstruction from heterogeneous data using a Gaussian Graphical Mixture Model (GGMM). It is well known that parameter estimation in this context is challenging due to large numbers of variables coupled with the degeneracy of the likelihood. We propose as a solution a penalized maximum likelihood technique by imposing an $l_{1}$ penalty on the precision matrix. Our approach shrinks the parameters thereby resulting in better identifiability and variable selection. We use the Expectation Maximization (EM) algorithm which involves the graphical LASSO to estimate the mixing coefficients and the precision matrices. We show that under certain regularity conditions the Penalized Maximum Likelihood (PML) estimates are consistent. We demonstrate the performance of the PML estimator through simulations and we show the utility of our method for high dimensional data analysis in a genomic application.
State-space modeling of dynamic genetic networks
Anani Lotsi,Ernst Wit
Statistics , 2013,
Abstract: The genomic reality is a highly complex and dynamic system. The recent development of high-throughput technologies has enabled researchers to measure the abundance of many genes (in the order of thousands) simultaneously. The challenge is to unravel from such measurements, gene/protein or gene/gene or protein/ protein interactions and key biological features of cellular systems. Our goal is to devise a method for inferring transcriptional or gene regulatory networks from high-throughput data sources such as gene expression microarrays with potentially hidden states, such as unmeasured transcription factors (TFs), which satisfies certain Markov properties. We propose a dynamic state space representation. Our method is based on an EM algorithm with an incorporated Kalman smoothing algorithm in the E-step, a bootstrap for confidence intervals to infer the networks and the AIC for model selection. The state space model is an approach with proven effectiveness to reverse engineer transcriptional networks. The proposed method is applied to time course microarray data obtained from well established T-cell. When we applied the method to the T-cell data, we obtained 4, as the optimum number of hidden states. Our results support interesting biological properties in the family of Jun genes. The following genes were mostly seen as regulatory genes. These genes includes FYB, CCNA2, AKT1, TRAF5, CASP4, and CTNNB1. We found interaction between Jun-B and SMN1, and CDC2 activates Jun-D. We found few significant interactions or one-to-one correspondence among the 4 putative transcription factors. Among the important key genes in terms of outward-directed edges, we found genes such as CCNA2, JUNB, CDC2, CASP4, JUND to have a high degree of connectivity. R Computer source code is made available at our website at http://www.math.rug.nl/stat/Main/Software.
Network estimation in State Space Model with L1-regularization constraint
Anani Lotsi,Ernst Wit
Statistics , 2013,
Abstract: Biological networks have arisen as an attractive paradigm of genomic science ever since the introduction of large scale genomic technologies which carried the promise of elucidating the relationship in functional genomics. Microarray technologies coupled with appropriate mathematical or statistical models have made it possible to identify dynamic regulatory networks or to measure time course of the expression level of many genes simultaneously. However one of the few limitations fall on the high-dimensional nature of such data coupled with the fact that these gene expression data are known to include some hidden process. In that regards, we are concerned with deriving a method for inferring a sparse dynamic network in a high dimensional data setting. We assume that the observations are noisy measurements of gene expression in the form of mRNAs, whose dynamics can be described by some unknown or hidden process. We build an input-dependent linear state space model from these hidden states and demonstrate how an incorporated $L_{1}$ regularization constraint in an Expectation-Maximization (EM) algorithm can be used to reverse engineer transcriptional networks from gene expression profiling data. This corresponds to estimating the model interaction parameters. The proposed method is illustrated on time-course microarray data obtained from a well established T-cell data. At the optimum tuning parameters we found genes TRAF5, JUND, CDK4, CASP4, CD69, and C3X1 to have higher number of inwards directed connections and FYB, CCNA2, AKT1 and CASP8 to be genes with higher number of outwards directed connections. We recommend these genes to be object for further investigation. Caspase 4 is also found to activate the expression of JunD which in turn represses the cell cycle regulator CDC2.
Antimicrobial Activities of Syzygium aromaticum (L.) Merr. and L.M. Perry (Myrtaceae) Fruit Extracts on Six Standard Microorganisms and Their Clinical Counterpart  [PDF]
Y.-G. Afanyibo, K. Anani, K. Esseh, Y. Sadji, K. Idoh, K. Koudouvo, A. Agbonon, Y. Améyapoh, K. Tozo, M. Gbeassor
Open Access Library Journal (OALib Journal) , 2018, DOI: 10.4236/oalib.1104951
Abstract:
Syzygium aromaticum is used in combination with other plants as an al-coholic infusion by traditional practitioners to treat infections. It has been selected for evaluation for its antimicrobial properties to justify its use in traditional pharmacopoeia. The fruits were used as plant material while the microbial germs consisted of six reference strains: Escherichia coli ATCC 25922, Staphylococcus aureus ATCC 29213, Salmonella typhimurium ATCC 14028, Pseudomonas aeruginosa ATCC 27853, Shigella flexneri ATCC 12022, Candida albicans ATCC 35659 and their clinical counterparts. The extracts were obtained by aqueous decoction, hydroethanolic and ethanolic macerations. The phytochemical screening was performed by chemical staining tests. The antibiotic susceptibility test was performed using the well diffusion method and the MIC and MBC or MFC were determined using the 96-well microplate dilution method. The results showed that 66.67% of the strains tested were sensitive to the aqueous extract with inhibition diameters ranging from 15 to 21 mm and MIC and MCB or MFC between 0.0976 - 0.3906 mg/mL and 0.1953 - 07812 mg/mL respectively, thus determining bacteriostatic activity. 100% of the germs tested were sensitive to hydroethanolic and ethanolic extracts. The inhibition diameters range from 12 - 28 mm for hydroethanolic extract with MIC and MBC or MFC ranging from 0.0488 - 0.3906 mm and 0.0488 - 0.7812 mm respectively. The ethanolic extract gave inhibition diameters of 12 - 26 mm; MIC and MBC or MFC ranging from 0.0976 - 0.7812 mm. Hydroethanolic extract gave three (3) bactericidal/fungicidal activities compared to four (4) as for ethanolic extract. These results prove the use of S. aromaticum among traditional recipes for treating infections in the pharmacopoeia but further studies remain important to produce traditionally improved drugs.
Complex Object Shapes Recognition. Automatic Aid Photointerpretation in a Satellite Image  [PDF]
Macho Anani, Kada Mouedden, Youcef Amar, Sara Lebid, Mohammed Benyahia
International Journal of Geosciences (IJG) , 2012, DOI: 10.4236/ijg.2012.31003
Abstract: The interpretation of geological structures on earth observation images involves like many other domains to both visual observation as well as specialized knowledge. To help this process and make it more objective, we propose a method to extract the components of complex shapes with a geological significance. Thus, remote sensing allows the production of digital recordings reflecting the objects’ brightness measures on the soil. These recordings are often presented as images and ready to be computer automatically processed. The numerical techniques used exploit the morphology ma- thematical transformations properties. Presentation shows the operations’ sequences with tailored properties. The example shown is a portion of an anticline fraction in which the organization shows clearly oriented entities. The results are obtained by a procedure with an interest in the geological reasoning: it is the extraction of entities involved in the observed structure and the exploration of the main direction of a set of objects striking the structure. Extraction of elementary entities is made by their physical and physiognomic characteristics recognition such as reflectance, the shadow effect, size, shape or orientation. The resulting image must then be stripped frequently of many artifacts. Another sequence has been developed to minimize the noise due to the direct identification of physical measures contained in the image. Data from different spectral bands are first filtered by an operator of grayscale morphology to remove high frequency spatial components. The image then obtained in the treatment that follows is therefore more compact and closer to the needs of the geologist. The search for significant overall direction comes from interception measures sampling a rotation from 0 to 180 degrees. The results obtained show a clear geological significance of the organization of the extracted objects.
Nutrient-Induced Growth of Coliform and HPC Bacteria in Drinking-Water Pipes  [PDF]
Patrick Asamoah Sakyi, Roland Asare, Chris Anani, Samuel Boakye Dampare
Journal of Environmental Protection (JEP) , 2012, DOI: 10.4236/jep.2012.36061
Abstract: We conducted a study on a model drinking water distribution system to evaluate the impact of nutrient in the form of sodium acetate on the growth and survival of coliform and heterotrophic plate count (HPC) bacteria for a maximum of 21 days residence time of water in pipes. Our results show that, besides the nutrient added and the absence of any additional source of contamination and additional supply of nutrient, there was significant growth of the above mentioned bacteria in the pipes and bottles for a couple of days, after which the bacterial population began to decrease. The results indicate that the bacteria used the nutrient to grow and multiply until the nutrient was totally consumed and became depleted in the bulk water phase, after which the bacterial population reached a near stationary level and subsequently declined. This suggests the death of some of the bacteria and their dead cells were used by other bacteria for growth and survival. Using a detection limit of 3.3 CFU/100 mL for the coliforms, the study shows that after sometime, no bacteria were found in the water phase of the pipe, however, the biofilm in the pipes still harbored some of the bacteria. The results have revealed that the bacteria also have the tendency to move from the water phase to the biofilm since the latter provides a more suitable environment for bacteria to thrive on and grow, thus prolonging their survival in the system.
第1页/共138555条
每页显示


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.