oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

4 ( 1 )

3 ( 1 )

2019 ( 82 )

2018 ( 156 )

Custom range...

Search Results: 1 - 10 of 71261 matches for " Faye Maria "
All listed articles are free for downloading (OA Articles)
Page 1 /71261
Display every page Item
Multivariate Geostatistical Model for Groundwater Constituents in Texas  [PDF]
Faye Anderson
International Journal of Geosciences (IJG) , 2014, DOI: 10.4236/ijg.2014.513132
Abstract: Although many studies have explored the quality of Texas groundwater, very few have investigated the concurrent distributions of more than one pollutant, which provides insight on the temporal and spatial behavior of constituents within and between aquifers. The purpose of this research is to study the multivariate spatial patterns of seven health-related Texas groundwater constituents, which are calcium (Ca), chloride (Cl), nitrate (NO3), sodium (Na), magnesium (Mg), sulfate (SO4), and potassium (K). Data is extracted from Texas Water Development Board’s database including nine years: 2000 through 2008. A multivariate geostatistical model was developed to examine the interactions between the constituents. The model had seven dependent variables—one for each of the constituents, and five independent variables: altitude, latitude, longitude, major aquifer and water level. Exploratory analyses show that the data has no temporal patterns, but hold spatial patterns as well as intrinsic correlation. The intrinsic correlation allowed for the use of a Kronecker form for the covariance matrix. The model was validated with a split-sample. Estimates of iteratively re-weighted generalized least squares converged after four iterations. Matern covariance function estimates are zero nugget, practical range is 44 miles, 0.8340 variance and kappa was fixed at 2. To show that our assumptions are reasonable and the choice of the model is appropriate, we perform residual validation and universal kriging. Moreover, prediction maps for the seven constituents are estimated from new locations data. The results point to an alarmingly increasing levels of these constituents’ concentrations, which calls for more intensive monitoring and groundwater management.
The Development of Rural Sustainability Using Participatory Action Research: A Case Study from Guatemala  [PDF]
Faye Anderson
Journal of Human Resource and Sustainability Studies (JHRSS) , 2015, DOI: 10.4236/jhrss.2015.31004
Abstract: Rural sustainability, although ambiguous at times, is an evolving science on the right way to higher shared value. Despite the rising demand for sustainability, its parameterization is still underdevelopment and differs spatiotemporally. This is a case study of developing rural sustainability using participatory action research (PAR) in small farms in the southern tropical Pacific coast of the Departments of Retalhuleu and Suchitepequez in Guatemala. This study covers five years (2010-2014) of communities’ involvement in open dialogue, field research and project leadership. The data were collected through multi-dimensional approach including hands-on training, surveys with farmers and their families, and public conferences. Exploratory statistical analyses showed that the differences in the responses collected were statistically significant. In addition, the responses on average reflect gratification from the local communities. This validates the positive change of these intervention programs that are both relevant and science-based. The application of PAR in these communities has proved to successfully allow for a two-way learning process between locals and field experts, improve the livelihood and thus sustainability of their lives, and empower them to take initiative with problem-solving actions.
Assessing the Association between Heart Attack, High Blood Pressure, and Heart Disease Mortality Rates and Particulate Matter and Socioeconomic Status Using Multivariate Geostatistical Model  [PDF]
Faye Anderson
Occupational Diseases and Environmental Medicine (ODEM) , 2016, DOI: 10.4236/odem.2016.41002
Abstract: This study addresses the public concerns of potential adverse health effects from ambient fine particulate matter as well as socioeconomic factors. Heart attack, high blood pressure, and heart disease mortality rates were investigated against fine particulate matter and socioeconomic status, for all counties in the United States in 2013. Multivariate multiple regressions as well as multivariate geostatistical predictions show that these are significant factors towards assessing the causal inferences between exposure to air pollution and socioeconomic status and the three mortality rates.
Application of Multivariate Geostatistics in Environmental Epidemiology: Case Study from Houston, Texas  [PDF]
Faye Anderson
Journal of Geoscience and Environment Protection (GEP) , 2016, DOI: 10.4236/gep.2016.44014
Abstract: This study represents an example of investigating the associations between the joint exposure to ozone (O3) and particulate matter of sizes less than or equal to 2.5 micrometers in aerodynamic diameter (PM2.5) and cardiovascular disease (CVD) emergency room (ER) visits and chronic obstructive pulmonary disease (COPD) ER visits using multivariate geostatistics in Houston, Texas, from 2004 to 2009. Analyses showed lack of strong pair-wise association among the predictors of O3, PM2.5, wind speed, relative humidity, and temperature. Whereas CVD and COPD ER visits exhibited a strong positive correlation. Both outcomes drastically increased from 2006 possibly due to immigration from neighboring locations. Parametric testing showed that the data differed significantly between the years. Multivariate multiple regression results on the 2009 data showed that PM2.5, relative humidity, and temperature were significant to both CVD and COPD ER visits. Codispersion coefficients were constant which justified the assumption of intrinsic correlation. That is, our predictors had strong influence on the spatial variability of CVD and COPD ER visits. This multivariate geostatistics approach predicted an increase of 34% in CVD ER visits and 24% increase in COPD ER visits, which calls for more attention from policy makers. The use of multivariate geostatistics analyses enabled us to successfully detect the effects of risk factors on both outcomes.
Connecting the Place of Woman and Education in the Millennium Development Goals and the Sustainable Development Goals to the Political Thought of Elizabeth Cady Stanton (1815-1902)  [PDF]
Diome Faye
Open Journal of Social Sciences (JSS) , 2018, DOI: 10.4236/jss.2018.64006
Abstract:
In the American Nineteenth Century, Elizabeth Cady Stanton, through the women’s rights movement, raised the issues of women’s access to quality education and gender equality in a male-dominated society where women’s lives were controlled by deep-seated beliefs, customs and laws. Stanton’s concerns were pointed out in 2000 in the Millennium Development Goals Summit and in 2015 in the Sustainable Development Goals Summit. The purpose of this article is to show that Stanton and the leaders of these two summits share the view that the world will not reach a harmonious, a more equitable and sustainable development if the challenges of women’s access to quality education and gender equality are not met.
Renal Disease among HIV Positive Patients in Senegal  [PDF]
Khodia Fall, Mouhamadou Moustapha Cissé, Ahmed Tall Lemrabott, Maria Faye, Mouhamed Cherif Dial, Atoumane Faye, Seynabou Fall, Moustapha Faye, Alex Keita, Mansour Mbengue, Seynabou Diagne, Niakhaleen Keita, Bacary Ba, Abdou Niang, Boucar Diouf, El Hadji Fary Ka
Open Journal of Nephrology (OJNeph) , 2017, DOI: 10.4236/ojneph.2017.74012
Abstract: Introduction: Renal disease (RD) in human immunodeficiency virus (HIV) infection is a decisive turning point in the development and prognosis of this disease. In Africa, the prevalence varies between 2.5% and 48.6%. In Senegal, little data are available in the literature. The objective of our study was to describe the epidemiological, clinical, paraclinical, therapeutic and progressional aspects in patients living with HIV (PLWHIV). Patients and methods: This was a retrospective, descriptive and analytical study carried out over a 10-year period in the Department of Internal Medicine and Nephrology at the Aristide Le Dantec Hospital in Dakar, Senegal. We included all 15-year old and above PLHIV with available CD4 count and viral load. Results: Out of 248 PLHIV, 32 had kidney disease (KD), which means a hospital prevalence of 12.9%. The mean age was 51.22 ± 10 years (extremes of 36 and 77 years) with a sex ratio (male/female) of 1.28. Renal signs were dominated by glomerular nephropathy syndrome. It was present at 80%. Tubulo-interstitial nephropathy syndrome and chronic uremic syndrome accounted for 6.25% and 3.1% of cases, respectively. Renal function Impairment was present in 21 patients with 18 cases of acute kidney injury (85.7%) and 3 cases of chronic renal failure (14.3%), including 2 in stage 5 of chronic kidney disease. Renal biopsy (RB) was indicated and performed in 20 (62.5%) patients with glomerular signs in 12 patients (60%). Glomerular lesions were dominated by focal and segmental glomerulosclerosis (FSGS) in 6 cases, membraneous nephropathy (MN) in 4 cases and minimal change disease (MCD) in 2 cases. Tubulo-interstitial and vascular lesions were present in 45% and 12.5% of cases, respectively. In highly active antiretroviral therapy (HAART), 12 (37.5%) patients had total remission, 9 (28.12%) had partial remission. One (3.12%) death from severe metabolic acidosis on chronic renal failure was deplored. Conclusion: This study illustrates the high prevalence of RD in PLHIV in our exercise context.
Idiopathic Adult Nephrotic Syndrome: A Clinicopathological Study and Response to Steroid in a Sub-Saharan African Country  [PDF]
Maria Faye, Ahmed Tall Lemrabott, Mouhamadou Moustapha Cisse, Jean De Dieu Nzambaza, Cherif Mouhamed Dia, Sidy Mohamed Seck, Khodia Fall, Moustapha Faye, Elhadji Fary Ka, Abdou Niang, Boucar Diouf
Open Journal of Nephrology (OJNeph) , 2016, DOI: 10.4236/ojneph.2016.62008
Abstract: Introduction: Idiopathic nephrotic syndrome represents 25% to 30% of glomerulonephritis in adults. These glomerulonephritides are responsible of about the half of chronic kidney failure examined as well in United States as in Europe or Africa. The aim of this study was to determine the anatomoclinic, therapeutic and progression patterns of idiopathic nephritic syndrome in Dakar. Patients and Methods: It is a retrospective ten-year study in the nephrology department of Aristide Le Dantec Hospital. Patients with idiopathic nephrotic syndrome were included. We analyzed anatomoclinic, therapeutic and progression data of idiopathic nephrotic syndrome. Results: On 202 patients with nephrotic syndrome, 156 (77%) were primitive. The mean age was 29.7 ± 12 years with a sex ratio of 2.4. Edema was found in 98 patients (62.8%) and hypertension in 63 patients (40%). The mean proteinuria was 6.8 ± 4.8 g/24h. Histologic lesions found at renal biopsy were focal segmental glomerulosclerosis in 71 patients (45.5%), minimal change disease in 68 patients (43.5%) and membranous nephropathy in 8 patients (5%). 134 patients (85.8%) received steroids alone, 12 patients (7.6%) received cyclophosphamide and 4 patients (2.5%) azathioprine in association with steroids. 44 patients (28.2%) reached remission. The factors of poor prognosis were: age, above 40 years, proteinuria above 10 g/24h, existence of renal failure at admission, absence of use of steroids therapy. Conclusion: This study shows that idiopathic nephrotic syndrome is frequent in our country with a prevalence of 77%. The most common lesion found at the renal biopsy is the focal segmental glomerulosclerosis. Remission is found only in 28% which is very low. 33% of patients progress towards chronic kidney disease due to the lack of early diagnosis and the use of traditional medicine.
Intradialytic Hypertension: Prevalence and Associated Factors in Chronic Hemodialysis Patients in Senegal  [PDF]
Faye Moustapha, Lemrabott Ahmed Tall, Kane Yaya, Cisse Mouhamadou Moustapha, Seck Sidy Mohamed, Faye Maria, Daher Abdoul Karim Omar, Fall Khodia, Sakho Binta, Keita Rick Alex Ismael, Mbengue Mansour, Niang Abdou, Diouf Boucar, Ka Elhadji Fary
Open Journal of Nephrology (OJNeph) , 2018, DOI: 10.4236/ojneph.2018.82004
Abstract: Introduction: Intradialytic hypertension is defined as elevation of blood pressure to more than 10 mmHg in the post-dialysis period as compared to the pre-dialysis one. It is an important factor of morbidity and mortality in hemodialysis patients. The aim of our study is to assess the prevalence and associated factors of intradialytic hypertension. Patients and methods: This is a descriptive and analytical cross-sectional study that was conducted over a period of 3 weeks in the hemodialysis units of Aristide Le Dantec Hospital in Dakar and Regional Hospital Center in Ziguinchor. Chronic he-modialysis patients who are at least 18 years old and agreed to participate in study have been included. Patients who did not have 4 measures or those who decided to withdraw from the study were excluded. Intradialytic hypertension was restrained by an increase in systolic blood pressure immediately after the hemodialysis session > 10 mmHg compared to that recorded before session, with a repetition of this phenomenon for at least 4 hemodialysis sessions. Results: Our study included 539 hemodialysis sessions for 93 hemodialysis patients with a mean age of 48.72 ± 14.06 years and a sex ratio (M/F) of 1.21. The mean duration of dialysis was 64.22 ± 45.63 months. Hypertensive nephropathy was significantly common, noted in 38.7% (36 patients). Mean inter dialytic weight gain was 2.04 ± 1.06 kg, and the average dry weight was 62.71 ± 13.69 kg. The average hemoglobin level was 9.27 ± 1.91 g/dl. The mean albumin level was 35.4 ± 7.48 g/l. Nineteen (19) patients were administered erythropoietin stimulating agents (20.4%), and 59 patients were given antihypertensive drugs (63.4%). An elevation of more than 10 mmHg of post-dialysis BP compared to pre-dialysis was noted in 179 sessions, which is 33.2 per 100 hemodialysis sessions. IDH was noted in 21 patients, which represents 22.6%. The factors associated with IDH were as follows: high post-dialysis pulse pressure (PP) (p = 0.0008), pre-dialysis systolic-diastolic hypertension (p = 0.004), pre-dialysis pure systolic hypertension (p = 0.01), post-dialysis hypertension (p = 0.02), and hypoalbuminemia (p = 0.049). Conclusion: Although recognized for many years, the intradialytic hypertension is often neglected. However, it is common in our cohort of chronic hemodialysis with several associated factors. Its management is essential and will necessarily pass through adequate management of the blood volume.
Accidental Migration of a Guide Wire during Femoral Venous Catheterization for Hemodialysis: A Case Report  [PDF]
Faye Moustapha, Cisse Mouhamadou Moustapha, Faye Maria, Daher Abdoul Karim Omar, Lemrabott Ahmed Tall, Fall Khodia, Sakho Binta, Keita Alex, Mbengue Mansour, Niang Abdou, Diouf Boucar, Ka Elhadji Fary
Open Journal of Nephrology (OJNeph) , 2018, DOI: 10.4236/ojneph.2018.82005
Abstract: Femoral venous catheterization is the most used technic in emergency he-modialysis. Some uncommon mechanical complications can occur during a catheterization. We report the case of an accidental migration of a guide wire during the placement of a hemodialysis femoral catheter. The case of a patient admitted in the nephrology department at Aristide Le Dantec University Hospital for malignant hypertension was investigated. Emergency hemodialysis was indicated. Surgical extraction of the metal guide has been performed and the outcome was favorable.
Prognostic Aspects of Lupus Nephritis at Aristide Le Dantec University Hospital in Dakar  [PDF]
Mbengue Mansour, Faye Maria, Cissé Mouhamadou Moustapha, Lemrabott Tall Ahmed, Fall Khodia, Keita Alex, Faye Moustapha, Ba Bakary, Diagne Seynabou, Keita Niakhaleen, Ba Mamadou Aw, Dieng Ameth, Motula Latou Lot, Niang Abdou, Diouf Boucar, Ka El Hadji Fary
Open Journal of Nephrology (OJNeph) , 2018, DOI: 10.4236/ojneph.2018.84014
Abstract: Introduction: Kidney injury is common in the course of lupus and affects the functional and vital prognosis. The risk of progression to end-stage renal failure can reach 40% to 60%. Thus we carried out this work for the purpose of an evaluation of the renal and vital prognosis and to deduce the factors of poor prognosis. Patients and method: This was a retrospective, descriptive and analytical study conducted over a period of 10 years from January 1, 2007 to December 31, 2016, performed in the Nephrology Department of Aristide Le Dantec Hospital in Dakar. Patients with lupus nephritis were included. The studied parameters were epidemiological, clinical, paraclinical and progression. We had done a crossover of the patients to look for the factors of poor renal and vital prognosis. Results: Out of 93 cases of lupus patients, 64 were included, a prevalence of 69%. The mean age of the patients was 31.97 ± 10.44 years old. There were 81% women and 19% men, a sex ratio of 0.23. Class III was found in 24 cases (37.5%), Class IV in 20 cases (31.25%), Class V in 15 cases (23.4%), Class II in 4 cases (6.25%) and Class I in 1 case (1.6%). The combination of corticosteroids and immunosuppressants was used in 56.25% of cases. After a follow-up of six months, 19 patients were in complete remission, 21 had resistance and 9 had partial remission. Of the 21 patients who had resistance, 8 were in chronic renal failure. Death was observed in 5 patients and the causes were in 3 patients: pulmonary embolism, bacterial meningitis and pulmonary tuberculosis. The cause of death was unknown in 2 patients. The factors of poor renal prognosis were lymphopenia, the presence of anti-native DNA antibodies, nephrotic syndrome, microscopic hematuria, tubular atrophy and interstitial fibrosis. Risk factors affecting renal survival were the presence of native anti-DNA antibodies, microscopic hematuria, leukocyturia and the presence of a proliferative class. The factors of poor prognosis were renal failure, lymphopenia, nephrotic syndrome, glomerular sclerosis, arteriosclerosis, interstitial infiltration and tubular atrophy. Conclusion: The risk conferred by nephropathy is greater for proliferative glomerulonephritis; it is also correlated with the presence of persistent nephrotic syndrome or severe renal failure.
Page 1 /71261
Display every page Item


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