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Upper arm length along with mid-upper arm circumference to enhance wasting prevalence estimation and diagnosis:sensitivity and specificity in 6-59-months old children

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Family Medicine and Community Health 2021年第2期9卷 24-30页

作者： Mouhamed Barro Mohamed Daouda Baro Djibril Cisse Noel Zagre Thierno Ba Shanti Neff Baro yacouba diagana Nutrition and development association NouakchottMauritania Nutrition UNICEFNouakchottMauritania UNICEF West and Central Africa Regional Office DakarSenegal Ministry of Health NouakchottMauritania Independent Consultant in Biostatistics ParisFrance University of Nouakchott NouakchottMauritania

Objective To evaluate the added value of the use of upper arm length(UAL)along with mid-upper arm circumference(MUAC)to diagnose and estimate the prevalence of wasting in comparison to current WHO standard and other MUAC-based *** UAL and usual anthropometric measurements were collected during a national cross-sectional nutritional *** were classified into three upper arm length groups(UALGs):UALG1,UALG2 and UALG3 according to the following UAL limits:≤150,151-180 and≥181 mm,*** operating characteristic curves were used to determine the best MUAC cut-off for each group using weight-for height Z-score(WHZ)as a reference *** prevalence,sensitivity and specificity of all diagnostic methods were *** This study was conducted in *** National representative sample of children from 6 to 59 months *** In total,12590 children were included in the *** prevalence was 16.1%,5.0%and 12.5%when diagnosed by WHZ<−2,MUAC<125 mm and MUAC-UALG methods,*** the MUAC-UALG method increased the sensitivity for wasting diagnosis from 17.98%with MUAC<125 mm to 39.43%with *** specificity decreased from 97.49%with MUAC<125 mm to 92.71%with *** MUAC-height Z score and MUAC<138 mm,sensitivity was 26.04%and 69.76%and specificity were 97.40%and 75.64%*** This alternative method using MUAC tape to measure UAL increases the wasting diagnosis accuracy and allows for a better estimation of wasting *** method could be used as a potential alternative method for quick surveys in emergency settings such as Corona virus disease 2019 context.

关键词： diagnosis estimation Upper

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Treatment of Prostatorectal Fistula by Transanorectal Route: About an Observation

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Open Journal of Urology 2024年第4期14卷 262-266页

作者： Mohamed Mahmoud Beya Ahmed Salem Terouzi Y. Tfeil diagana Mouhamadou Urology Department Cheikh Zayed Hospital Nouakchott Mauritania

This is a 54-year-old patient admitted for the management of urinary leakage through the anus that had been occurring for a month, in whom the diagnosis of a prostatorectal fistula was made. The fistula was successful... 详细信息

关键词： Fistula Prostate Rectum York Masson

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Adult Kidney Cancer in Mauritania: Clinical and Therapeutic Aspects

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Open Journal of Urology 2023年第6期13卷 178-184页

作者： Mohamed Mahmoud Beya Yahya Tfeil Aboubacar Traore Mouhamadou diagana Mohamed Bechir Essalem Sheikh Zayed Hospital Nouakchott Mauritania

Introduction: since its creation, our urology department has taken care of tumor pathologies in particular kidney cancer in adults;our goal is to study the clinical and therapeutic epidemiological profiles of adult kidney cancer in Mauritania. Materials and Methods: We carried out a retrospective study over a period of six years, from January 1, 2012 to December 31, 2017, including all cases of adult kidney cancer registered in the urology-andrology departments of the Cheikh Zayed Hospital and Pathological Anatomy of the National Hospital of Nouakchott (Mauritania). Results: we collected 50 cases of kidney cancer. The average annual incidence was 8.3 cases. The average age of the patients was 52.98 years with extremes of 18 and 84 years. There was a female predominance (52%) or 29 women for 21 men. Lumbar pain was the most frequent clinical expression, more than half of the patients had symptoms over a period of at least 12 months before the first consultation. The left kidney was the most frequently affected. The right localization was demonstrated in 23 patients, the extension assessment was made with thoraco-abdomino-pelvic CT in 40 patients. Twelve patients had a tumor localized in the kidney. The extension assessment had made it possible to objectify the existence of metastases in 17 of our patients (37%). The preferred locations of these metastases were pulmonary and hepatic. Surgical intervention was performed in 44 patients (88%), of whom 36 underwent radical nephrectomy (72%), and two patients underwent partial nephrectomy (4.5%). Surgical abstention was decided from the outset in 6 patients (13.6%). None of our patients had received treatment with anti-angiogenics. The histological type most observed in our patients was renal cell carcinoma, observed in 34 patients, or 77.72%. At the time of the study, more than a third of the patients had died. The mortality rate in our series had reached 24%. A specific survival rate could not be assessed due to lack of

关键词： Adult Kidney Cancer Mauritania Clinical and Therapeutic Epidemiological Profiles

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Modeling and Simulation of CDMA Codes in Scilab

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International Journal of Communications, Network and System Sciences 2015年第7期8卷 274-281页

作者： Mouhamed Fadel diagana Serigne Bira Gueye Department of Physics Faculty of Sciences and Techniques Cheikh Anta Diop University Dakar-Fann Senegal

Prior to hardware implementation, simulation is an important step in the study of systems such as Direct Sequence Code Division Multiple Access (DS-CDMA). A useful technique is presented, allowing to model and simulate Linear Feedback Shift Register (LFSR) for CDMA. It uses the Scilab package and its modeling tool for dynamical systems Xcos. PN-Generators are designed for the quadrature-phase modulation and the Gold Code Generator for Global Positioning System (GPS). This study gives a great flexibility in the conception of LFSR and the analysis of Maximum Length Sequences (MLS) used by spread spectrum systems. Interesting results have been obtained, which allow the verification of generated sequences and their exploitation by signal processing tools.

关键词： Code Division Multiple Access (CDMA) Linear Feedback Shift Register (LFSR) Maximum Length Sequence (MLS) Spread-Spectrum Scilab Xcos Direct Sequence Spread Spectrum (DSSS)

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Analysis, Design, and Test of CDMA LFSR with Offset Mask Using Standard ICs

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Engineering（科研） 2016年第4期8卷 226-231页

作者： Mouhamed Fadel diagana Serigne Bira Gueye Engineering Institute of Computer Science and Telecommunications (I3T) Dakar Senegal Department of Physics Faculty of Sciences and Techniques Cheikh Anta Diop University Dakar Senegal

Hardware implementation of Linear Feedback Shift Register (LFSR) plays a great and very important role in communication systems, and in many security devices. In this paper, a design of LFSR with offset mask has been presented, for Direct Sequence Code Division Multiple Access (DS-CDMA) applications. Integrated electronic components have been used. An accessible model facilitating the synthesis on Printed Circuit Boards (PCB) and implementation on Field Programmable Gate Array (FPGA) is offered. In addition, a temporal and spectral analysis of the circuit is performed in order to validate the design. This latter facilitates the generation of pseudo-random codes based on LFSR and their integration into electronic systems.

关键词： LFSR CDMA DS-CDMA PCB FPGA Integrated Circuit (IC) Spread Spectrum (SS) Modular Shift Register (MSRG)

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Transurethral Resection of the Prostate (TURP): About 146 Cases at Sheikh Zayed Hospital in Nouakchott Mauritania

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Open Journal of Urology 2021年第12期11卷 518-524页

作者： Mouhamadou diagana Yahya Tfeil Mohamed Mahmoud Boya Mohamed Bechir Essalem Faculty of Medicine Al Asyria University Sheikh Zayed Hospital Nouakchott Mauritania

Introduction: Transurethral resection of the prostate (TURP), entered our service in October 2015, since then it became a part of the service daily activity. The aim of our study is to assess the acceptance of the technic by our patients and by the nursing staff and to analyze the results of our initial experience. Materials and Methods: Retrospective study over 14-month (October 2015 to December 2016);bringing together all the patients who received TURP. The inclusion criteria are to have benefited from a TURP in our service. The exclusion criteria all patients operated by other techniques. It was a monopolar resection of the prostate using a glycocolle loop, the size limit of the prostate was 65 cc or less. A questionnaire on the knowledge of the technique and its acceptance is made. The parameters studied the age of the patient;surgical indications;the course of the operation, the complications and the course. The frequency of TURP compared to other techniques and the demand for this technique by patients. The urinary catheter was left in place for 4 days, the patients were seen again on day 7 after the catheter was removed to assess the urine flow, a question regarding the opinion of the nursing staff was included and analyzed separately. Results: The total number of patients was 146;the mean age was 68.2 years. The main cause of consultation was urine retention 65%. The average duration of the intervention was 56 minutes. The average length of hospital stay was 28 hours. The urinary catheter was removed on day 4. Complications were bleeding in 7% of cases requiring blood transfusions. Failure to remove the indwelling catheter leads to revision via the transurethral route. The TURP syndrome was observed in 2 patients in our early patients but quickly resolved. The outcome was favorable in 75% of cases. Post operating management give satisfaction for nurse and acceptance was a success. Conclusion:

关键词： Prostate Resection Endoscopy Mauritania

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Efficient BTCS + CTCS Finite Difference Scheme for General Linear Second Order PDE

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Journal of Electromagnetic Analysis and Applications 2021年第10期13卷 135-143页

作者： Gueye Serigne Bira Mbow Cheikh diagana Mouhamed Fadel Département de Physique Faculté des Sciences et Techniques Université Cheikh Anta Diop Dakar-Fann Sénégal

This work deals with a second order linear general equation with partial derivatives for a two-variable function. It covers a wide range of applications. This equation is solved with a finite difference hybrid method:... 详细信息

关键词： Finite Difference BCTS + CTCS Usmani’s Algorithm Tridiagonal Matrix Telegraph Equation

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Urinary Lithiases: Epidemiological, Clinical and Therapeutic Aspects of 164 Cases at Sheikh Zayed Hospital in Nouakchott—Mauritania

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Open Journal of Urology 2020年第7期10卷 217-224页

作者： Mouhamedou diagana Yahya Tfeil Mohamed Mahmoud Boya Mohamed Essalem Béchir Faculty of Medicine Sheikh Zayed Hospital Al Assriya University Nouakchott Mauritania

Urinary lithiases occupy an important position with respect to urological activities in our department. In our Sahel region, lithiasic pathology represents 40% in urology in Senegal [1]. In Mauritania, we did not find a study evaluating the prevalence of this pathology. The frequency and gravity are variable. The objective of the study was to report the clinical profile and the results of management of urinary lithiasis in our environment. Materials and Methods: We conducted a retrospective, descriptive study spanning over two years (April 2015 to March 2017) in the urology department of Sheikh Zayed Hospital in Nouakchott. All patients operated for urinary lithiasis during this period were included in the study. The operative techniques used were semi rigid ureteroscopy, extra corporeal lithotrity, open surgery. Our center did not have flexible ureteroscopy and percutaneous nephrolithotomy. The indications were lithotrity for calculations lower than 20 mm of low density. Biger than 20 mm were by open surgery. Semi rigid ureteroscopy for distal ureteral calculi. Medical treatment or monitoring for non-obstructive calculi is less than 7 mm. Urine drainage by jj probe or nephrostomy are performed. We excluded all patients with lithiasis for the medical treatment. The result was good when absence of lithiasis residues was less than 7 mm and removal of the obstruction. Results: A total of 164 patients were found. The average age was 41 years, and F/M ratio was 1/10. Considering geographical origin, 82% of patients came from rural areas. The presenting complaint was mainly Lower Urinary Tract Symptoms (56%) and Renal Colicky Pain (31%). The bladder and kidneys were the most common (respective 45% and 35%) sites of stone location. Bilateral stones were 18%. Staghorn stones constituted 6% of the cases. Non steroidal anti-inflammatory treatment was administered in 82% of cases, while antibiotic therapy was administered in 32% of cases. Comp

关键词： Lithiasis Urinary

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