Mohammed sani Adam - Academia.edu (original) (raw)

Papers by Mohammed sani Adam

Journal of Environmental Chemistry and Ecotoxicology, Sep 30, 2010

The assessment of organic pollution Indicator levels of River Benue in Adamawa State was carried ... more The assessment of organic pollution Indicator levels of River Benue in Adamawa State was carried in ten sampling stations. The sampling was done in the months of February, March, and April 2007, representing dry season, while the months of August, September, and October 2007, represent the wet season. The water and sediment samples collected were analysed using standard procedures. The pollution indicators determined includes: Dissolve oxygen (DO), biochemical oxygen demand (BOD 5), chemical oxygen demand (COD), and total organic carbon (TOC). The results for River Benue showed the following concentrations of the parameters assessed: The BOD 5 values ranged between 1.55 ± 0.68 and 3.72 ± 0.51 mg/l for dry season and 0.89 ± 0.11 and 1.70 ± 0.72 mg/l for wet season indicating that values were higher during dry season than wet season. Likewise the COD values were between 2.97 ± 0.47 and 3.57 ± 0.97 mg/l for dry season and 2.49 ± 0.47 and 2.90±0.31 mg/l for wet season. This shows high COD values during dry season than wet season. The TOC values ranged between 1.01 ± 0.06 and 1.52 ± 0.16% for dry season and 0.35 ± 0.06 and 0.56 ± 0.08% for wet season, while the DO values were between 5.27 and 6.41 mg/l for dry season and 6.32 and 8.32 mg/l for wet season. This showed that the DO was high during wet season than dry season. The BOD 5 , COD and TOC were high during dry season, while the DO was low and vice versa. The correlation between BOD 5 versus COD gave a positive correlation of 0.652 and that of COD against TOC gave a positive correlation of 0.743 because all of them are products of oxidation. The correlation of DO against BOD 5 gave a negative correlation of 0.693. The values of the organic indicators studied were within the allowable limits of WHO and NAFDAC.

Sensors, 2021

The most effective methods of preventing COVID-19 infection include maintaining physical distanci... more The most effective methods of preventing COVID-19 infection include maintaining physical distancing and wearing a face mask while in close contact with people in public places. However, densely populated areas have a greater incidence of COVID-19 dissemination, which is caused by people who do not comply with standard operating procedures (SOPs). This paper presents a prototype called PADDIE-C19 (Physical Distancing Device with Edge Computing for COVID-19) to implement the physical distancing monitoring based on a low-cost edge computing device. The PADDIE-C19 provides real-time results and responses, as well as notifications and warnings to anyone who violates the 1-m physical distance rule. In addition, PADDIE-C19 includes temperature screening using an MLX90614 thermometer and ultrasonic sensors to restrict the number of people on specified premises. The Neural Network Processor (KPU) in Grove Artificial Intelligence Hardware Attached on Top (AI HAT), an edge computing unit, is u...

Although serialization improves the transmission of data through utilization of bandwidth, but it... more Although serialization improves the transmission of data through utilization of bandwidth, but its impact at the communication systems is not fully accounted. This research used Simple Object Access Protocol (SOAP) Web services to exchange serialized and normal messages via Hypertext Transfer Protocol (HTTP) and Java Messaging System (JMS). We implemented two web services as server and client endpoints and transmitted SOAP messages as payload. We analyzed the effect of unserialized and serialized messages on the computing resources based on the response time and overhead at both server and client endpoints. The analysis identified the reasons for high response time and causes for overhead. We provided some insights on the resources utilization and trade-offs when choosing messaging format or transmission protocol. This study is vital in resource management in edge computing and data centers.

Advances in Psychological Science, 2020

To close the nutrient-related yield gaps in maize, balanced nutrition using primary and secondary... more To close the nutrient-related yield gaps in maize, balanced nutrition using primary and secondary macronutrients as well as micronutrients is recommended. Multi-nutrient diagnostic field trials were conducted in Guinea Savanna of Nigeria to assess the interactive effects of macronutrients and micronutrients on maize grain yields, nutrient uptake as well as N, P and K use efficiencies. The treatments consisted of a control (zero fertilizer applied), an NPK treatment and 10 other treatments in which macronutrient (Mg, S) and/or micronutrients (B, and Zn) were added to the NPK. The experiment was laid out in Randomized Complete Block Design with 3 replications. Data collected were subjected to mixed model with nutrient management strategy as fixed effects while replication nested in location and interaction between location and nutrient management strategy as random effects. The results revealed significant effects (P < 0.05) of nutrient management strategy on maize yield, nutrient ...

International orthopaedics, Jan 7, 2018

The ideal treatment of acute anterior shoulder dislocation remains one of the topics that spark d... more The ideal treatment of acute anterior shoulder dislocation remains one of the topics that spark debate over the value of primary repair for the first-time anterior shoulder dislocation. The high rate of complications especially in young adults, such as recurrent instability, residual pain, and inability to return to sports, has led to the quest for an ideal management of such injuries. In this meta-analysis, we compare between the immediate arthroscopic repair and conservative treatment of primary anterior shoulder dislocation as well as arthroscopic reconstruction of recurrent anterior shoulder dislocation. Outcome measures were failure rate (dislocation, subluxation, and instability) and revision rates. Following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, we searched several database including PubMed, MEDLINE, EMBASE, Web of Science, Cochrane Library, and ClinicalTrials.gov through August 2017 to identify observational and experimen...

Biochemical Journal, 1987

We have investigated the phosphorylation of transferrin receptors both in intact sheep reticulocy... more We have investigated the phosphorylation of transferrin receptors both in intact sheep reticulocytes and in isolated plasma membranes. Phosphorylation of the receptor in intact cells or isolated plasma membranes is stimulated by phorbol diesters, suggesting that protein kinase C may be involved. Identical [32P] phosphopeptide tryptic maps are formed in the presence and absence of phorbol diesters. Using heat-treated membranes (which are devoid of endogenous kinase activity) exogenous protein kinase C phosphorylates the same peptides as the endogenous kinase(s). During maturation of reticulocytes to erythrocytes, the transferrin receptor is released to the medium in vesicular form. In cells labelled with [32P]Pi, the released receptor is not labelled with 32P and the exocytosed vesicles do not phosphorylate receptor with [gamma-32P]ATP. The absence of 32P in the released receptor appears to be due to a change in the receptor, since, even in the presence of exogenous protein kinase C,...

Revue Scientifique et Technique de l'OIE, 2013

Bovine brucellosis, an important bacterial zoonosis, is usually associated with intensive systems... more Bovine brucellosis, an important bacterial zoonosis, is usually associated with intensive systems of production. A cross-sectional study was conducted in western Ethiopia to determine the seroprevalence of bovine brucellosis in cattle under traditional extensive husbandry. Sera collected from 1,152 cattle originating from 164 herds were screened, using the Rose Bengal test, and all positive sera were then examined, using complement fixation as a confirmatory test. Based on the results of two-step testing, the apparent seroprevalences were 1% (95% confidence interval [CI]: 0.5%, 1.7%) at the animal level and 4.9% (95% CI: 1.6%, 8.2%) at the herd level. A random-effects binary logistic regression model was used to examine potential risk factors, using 'herd' as a random effect. Herd size (p = 0.009) and abortion (p = 0.015) were significant risk factors for animal-level seropositivity, after controlling for other factors. Although bovine brucellosis was found at a low prevalence in the indigenous cattle population, the disease should be considered in any future expansion of dairy cattle production involving improved breeds.

Veterinary Medicine and Science, 2016

Dermatophilus congolensis, the aetiological agent of dermatophilosis, is a pleomorphic, Gram-posi... more Dermatophilus congolensis, the aetiological agent of dermatophilosis, is a pleomorphic, Gram-positive actinomycete, which infects animals and humans. Often, there is a wrong diagnosis of the infection in animals because of the close resemblance of the organism with other members of the family Actinomycetaceae. In this study, molecular tools were applied to suspected isolates of D. congolensis obtained from naturally infected cattle in Nigeria for confirmation of dermatophilosis. DNA extraction from 54 suspected pure colonies of D. congolensis was carried out using the QIAamp â DNA Mini extraction kit. PCR targeted at the 16S rRNA gene was employed for the confirmation of D. congolensis using 5 0-ACATGCAAGTCGAACGATGA-3 0 and 5 0-ACGCTCGCACCCTACGTATT-3 0 as forward and reverse primers, respectively. Positive amplicons were then sequenced directly using Big Dye Terminator Cycle Sequencing Kit with the forward primers and Ampli-Taq-FS DNA Polymerase. Nucleotide sequences were aligned using BIOEDIT (Ibis Biosciences Carlsbad, CA USA) and the phylogenetic analysis was carried out using MEGA 5.

Abstract Economic development thrives on the availability and reliability of power supply. This i... more Abstract Economic development thrives on the availability and reliability of power supply. This is because energy is a vital input to every economic activity. In this study, we trace the electricity reforms of Ghana, examine the challenges and provide recommendations to improve power supply and supply in Ghana. Key literature and policy papers on the power reform in Ghana are evaluated. Further, the role of the private sector in electricity supply is examined. The study recommends that policies such as net metering, flexible, independent and investor friendly regulatory framework, reliable off-taker and investment in LNG facilities to ensure availability of natural gas for thermal power generation. Key words: Power Sector Reform, Electricity Demand, Electricity Supply, Intermittent power supply

A simple high performance liquid chromatographic (HPLC) method for the simultaneous determination... more A simple high performance liquid chromatographic (HPLC) method for the simultaneous determination of dorzolamide hydrochloride and timolol maleate in eye drops formulation is presented. The HPLC separation was undertaken on a Eurospher 100 C-18 25*4.6 (5µm) column using a mobile phase of acetonitrile, tetrahydrofuran (THF) and 1% phosphoric acid aqueous solution,(15:3:82 v/v). System suitability was assessed through measurement of factors affecting column efficiency i.e. peak symmetry, capacity factor and resolution. Analytes concentrations were calculated utilizing peak area and peak height. The linearity range (r value > 0.99) was 120-480 µg/ml and 360-1440 µg/ml for timolol maleate and dorzolamide hydrochloride respectively. The limit of detection and limit of quantification for timolol maleate were 5.95µg/ml and 18.03µg/ml. The corresponding values for dorzolamide hydrochloride were 25.18µg/ml and 76.31µg/ml.

Technologies for Development, 2015

Three billion people rely on combustion of biomass to cook their food, and the resulting air poll... more Three billion people rely on combustion of biomass to cook their food, and the resulting air pollution kills 4 million people annually. Replacing inefficient traditional stoves with "improved cookstoves" may help reduce the dangers of cooking. Therefore analysts, policy makers, and practitioners are eager to quantify adoption of improved cookstoves. In this study, we use 170 instrumented cookstoves as well as cellphone-based surveys to measure the adoption of free-of-charge Berkeley-Darfur Stoves (BDSs) in Darfur, Sudan where roughly 34,000 BDS have been disseminated. We estimate that at least 71 % of participants use the stove more than 10 % of days that the sensor was installed on the cookstove. Compared to sensor-measured data, surveyed participants overestimate adoption both in terms of daily hours of cooking and daily cooking events (p < 0.001). Average participants overreport daily cooking hours by 1.2 h and daily cooking events by 1.3 events. These overestimations are roughly double sensor-measured values. Data reported by participants may be erroneous due to difficulty in recollection, courtesy bias, or the desire to keep personal information obscure. A significant portion of sensors was lost during this study, presumably due to thermal damage from the unexpected commonality of charcoal fires in the BDS; thus pointing to a potential need to redesign the stove to accommodate users' desire to cook using multiple fuel types. The cooking event detection algorithm seems to perform well in terms of face validity, but a database of cooking logs or witnessed accounts of cooking is absent;

International journal of biomedical science : IJBS, 2013

The degradation behavior of cefquinome sulphate in alkaline medium at different temperatures was ... more The degradation behavior of cefquinome sulphate in alkaline medium at different temperatures was investigated using both first derivative spectrophotometric and HPLC methods. The drug degradation was found to be pH and temperature dependant. The pH-rate profile indicated a first order dependence of Kobs on [OH(-)] at pHs ranging between 9 and 11. Arrhenius plot obtained at pH 10 was linear between 65° and 100°C. The estimated activation energy of the hydrolysis was found to be 21.1 kcal mol(-1). Stability-indicating thin-layer chromatographic method for the separation of the drug and its alkaline hydrolysis product has been developed.

Sudan Journal of Medical Sciences, 2009

To audit the management of diabetic septic foot [DSF] lesions in Omdurman Teaching Hospital, usin... more To audit the management of diabetic septic foot [DSF] lesions in Omdurman Teaching Hospital, using Wagner classification. Patients and methods: This is a retrospective study on 208 patients with DSF admitted to Omdurman Teaching Hospital, Sudan between June 2006 and May 2007. Data were analyzed manually Results: The male to female ratio was 2:1. The mean age± SD was 56 ± 12.35 year. 16.8% patients were grade 1. 33 (15.9%) patients were grade 2. grades 3, 4, 5 patients were 66 (37 %), 38 (18.3%) and 36 (17.3%) respectively. Major lower limb amputation and mortality were 19.2%, and 6.7% respectively. Conclusion: Preventive measures for patients at risk are highly needed as well early presentation is encouraged when ulcer develops in diabetic foot to avoid subsequent complications.

The Journal of Cell Biology, 1985

Using ferritin-labeled protein A and colloidal gold-labeled anti-rabbit IgG, the fate of the shee... more Using ferritin-labeled protein A and colloidal gold-labeled anti-rabbit IgG, the fate of the sheep transferrin receptor has been followed microscopically during reticulocyte maturation in vitro. After a few minutes of incubation at 37 degrees C, the receptor is found on the cell surface or in simple vesicles of 100-200 nm, in which the receptor appears to line the limiting membrane of the vesicles. With time (60 min or longer), large multivesicular elements (MVEs) appear whose diameter may reach 1-1.5 micron. Inside these large MVEs are round bodies of approximately 50-nm diam that bear the receptor at their external surfaces. The limiting membrane of the large MVEs is relatively free from receptor. When the large MVEs fuse with the plasma membrane, their contents, the 50-nm bodies, are released into the medium. The 50-nm bodies appear to arise by budding from the limiting membrane of the intracellular vesicles. Removal of surface receptor with pronase does not prevent exocytosis of...