Menstrual hygiene among adolescent school girls in Kano

Background: Adolescent girls often lack knowledge regarding reproductive health including menstruation that could be due to sociocultural barriers in which they grow up.Materials and Methods: The study was a cross‑sectional survey conducted among adolescent girls in three secondary schools at Kano, from 1st January to 31st December, 2016. Ethical approval was obtained from Aminu Kano Teaching Hospital Ethics Committee and Kano State Ministry of Health. Consent/assent was obtained from all the participants/guardians. Data obtained were recorded on questionnaires and analyzed using SPSS version 18 Statistical Software. Fishers’ exact test was used in this study and P value of ≤0.05 was considered significant.Result: During the study period (from January to December, 2016), 219 adolescent secondary school girls participated in the survey. The mean age (±SD) was 16.1 ± 1.34 years. There was no statistically significant association between the mean age at menarche and the socioeconomic status of their parents (P [Fishers’] = 0.817). Up to 202 (92.2%) adolescent girls had premanarcheal counseling. Most of the information on premenarcheal counseling was provided by the parents/guardians 139 (62.9%) followed by the school teachers 42 (19.0%). Sanitary pads were the most used menstrual absorbent among the adolescents 202 (92.2%). Other menstrual absorbent used by the adolescents were toilet roll 11 (5.0%) and cloth 5 (2.3%). Among the methods of disposal of menstrual absorbent, dustbin 161 (73.9%) was the most used followed by disposal in the toilet 32 (14.7%), and burning 21 (9.6%). Other methods of disposal used by the adolescents were by washing it or road side/farm/over the fence disposal 4 (1.8%).Conclusion: There was good menstrual hygiene among the adolescent school girls. Sanitary pads were the most used menstrual absorbent.Keywords: Adolescents; Kano; menstrual hygien

Choice of delivery positions among multiparous women in Kano

Background: Confining women to hospital bed with limited power of movement and involvement of decision making during labor process and  restricting them to supine position in second stage of labor might contribute significantly to aversion to hospital delivery. Objective: To determine the different delivery positions women take during home delivery. Method: This was a cross sectional survey among 285 multiparous women who had vaginal delivery of life singleton babies. They were interviewed using questionnaire at Murtala Muhammad Specialist hospital Kano on choices of delivery position. Ethical approval was obtained from the ethical committee of the state. Data obtained were analyzed using SPSS Version 19. Qualitative data were summarized using frequencies and percentages. Chi (χ2) test was used for categorical data. A P value of ≤ 0.05 was considered statistically significant. Results: The mean age (±SD) of the respondents was 28.9 ± 7.12 years. Majority of the women that delivered at home assumed the squatting  position for delivery (60%) and were mainly assisted by traditional birth attendants (TBA) (41.3%). Over 50% of those that delivered at home were instructed to take the position they delivered in by their assistants at delivery while those that chose their position by themselves did that because they felt more comfortable in that position (85%). Over 80% of those that were instructed to take a position at delivery did not ask their assistant the reason for advising on that position. There was statistically significant association between educational level and right to decide in which positionto deliver the baby (χ²=28.517, P = 0.000). Conclusion: Squatting position was the most assumed position following home delivery. There was statistically significant association between educational level and right to decide in which position to deliver the baby. Key words: Choices; delivery position; multiparous women; Nigeria; vaginal birth

Classification of Normal and Crackles Respiratory Sounds into Healthy and Lung Cancer Groups

Lung cancer is the most common cancer worldwide and the third most common cancer in Malaysia. Due to its high prevalence worldwide and in Malaysia, it is an utmost importance to have the disease detected at an early stage which would result in a higher chance of cure and possibly better survival. The current methods used for lung cancer screening might not be simple, inexpensive and safe and not readily accessible in outpatient clinics. In this paper, we present the classification of normal and crackles sounds acquired from 20 healthy and 23 lung cancer patients, respectively using Artificial Neural Network. Firstly, the sounds signals were decomposed into seven different frequency bands using Discrete Wavelet Transform (DWT) based on two different mother wavelets namely Daubechies 7 (db7) and Haar. Secondly, mean, standard deviation and maximum PSD of the detail coefficients for five frequency bands (D3, D4, D5, D6, and D7) were calculated as features. Fifteen features were used as input to the ANN classifier. The results of classification show that db7 based performed better than Haar with perfect 100% sensitivity, specificity and accuracy for testing and validation stages when using 15 nodes at the hidden layer. While for Haar, only testing stage shows the perfect 100% for sensitivity, specificity, and accuracy when using 10 nodes at the hidden layer

Mangrove species' association and distribution patterns in Tumpat, Kelantan Delta, east coast of peninsular Malaysia

We studied mangrove vegetation at Tumpat to estimate different tree structural parameters (e.g., stem density and basal area) at selected sites (PCQ-Method). There were 5 dominant taxa in the vegetation, i.e., Sonneratia caseolaris, Nypa fruticans, Avicennia alba, Rhizophora mucronata, and Bruguiera gymnorrhiza in order of importance. Total tree density varied between 79 and 132 stems 0.1ha-1, and basal area from 0.14 to 4.9m2 0.1ha-1. Based on species composition and stem density, the mangrove sites could be separated into two groups (Bray-Curtis similarity: 60%). While Group-1 (sites G9, J5, K4, N6 and O4), dominated by S. caseolaris and N. fruticans, was distributed throughout the forest, Group-2 (sites C6 and G6), represented largely by A. alba, is present close to the bay-mangrove boundary. Elevation measurements indicate that Group-1 species occupied lowlying to elevated grounds (0.87-2.23m above the mean sea level) with a (mean) salinity between 0.38 and 14.6psu, whereas Group-2 occurred preferentially at low to medium elevations (0.86-1.29m) and high salinity (14.6psu). Discrete mangrove associations (=groupings) were discerned, wherein the distribution of species is governed by factors such as proximity of land or sea, freshwater input and elevation

High Energy X-Ray Dosimetry Using (ZnO)0.2(TeO2)0.8 Thin Filmbased Real-time X-Ray Sensor

This study reports the dosimetric response of a (ZnO)0.2(TeO2)0.8 thin film sensor irradiated with high-energy X-ray radiation at various doses. The spray pyrolysis method was used for the film deposition on soda-lime glass substrate using zinc acetate dehydrate and tellurium dioxide powder as the starting precursors. The structural and morphological properties of the film were determined. The I-V characteristics measurements were performed during irradiation with a 6 MV X-ray beam from a Linac. The results revealed that the XRD pattern of the AS-deposited thin film is non-crystalline (amorphous) in nature. The FESEM image shows the non-uniform shape of nanoparticles agglomerated separately, and the EDX spectrum shows the presence of Te, Zn, and O in the film. The I-V characteristics measurements indicate that the current density increases linearly with X-ray doses (0-250 cGy) for all applied voltages (1-6 V). The sensitivity of the thin film sensor has been found to be in the range of 0.37-0.94 mA/cm2 /Gy. The current-voltage measurement test for fading normalised in percentage to day 0 was found in the order of day 0 > day 15 > day 30 > day 1 > day 2. These results are expected to be beneficial for fabricating cheap and practical X-ray sensors

Modification of Institute for Agricultural Research Multi-Crop Thresher for Improved Performances

In millet producing areas of Nigeria, the predominant method of threshing is traditional. It involves beating the millet panicle with a stick, over a log of wood or by pounding using mortar and pestle. This method is inefficient, time-consuming, labor intensive, prone to drudgery, uneconomical, low output and gives product contaminate with extraneous material such as stones and sand. Though imported threshers are effective in millet threshing; they are expensive, complexed in design and required skillful personnel for operation. An Institute for Agricultural Research  (IAR) multi-crop thresher for sorghum, millet, and wheat was modified for improved performances. The performance of the modified thresher was evaluated using Ex-borno variety of pearl millet. Two levels of moisture content; 9.21% and 10.81%, four feed rates levels; 3, 4, 5 and 6 kg/min, four levels of drum speed; 700, 800, 900 and 1000 rpm were considered during the experiment. The test results indicated as high as 98.78% threshing efficiency, a minimum of 1.02% grain damage, maximum cleaning efficiency of 97.19%, and 2.50% scatter loss and maximum throughput capacity of 194.02 kg/hr. In comparison to the previous thresher, threshing efficiency, mechanical grain damage, cleaning efficiency, scatter losses, and throughput capacity have improved by 2.01%, 330.56%, 9.79%, 10.78%, and 69.86% respectively. The developed thresher is anticipated to increase the farmer’s productivity due to improved performances.Keywords: Millet, Threshing Efficiency, Cleaning Efficiency, Feed Rate, cylinder Spee

Survey dataset on professional's perception on site supervision and project performance

Effective site supervision plays an important role in construction project delivery. This situates site supervisors in taking the responsibilities of coordinating and controlling all physical aspects of the day-to-day task in construction projects. A cross-sectional design approach was adopted by administering a well-structured questionnaire to selected built environment professionals. Descriptive statistics was performed on the data obtained and are presented on figures and tables. The data was also subjected to inferential statistics using Kruskal Wallis test to analyze the perceptions of respondents on effects of site supervision of construction works on completion time and quality respectively. The significance of the analyzed data is on identifying the effects of site supervision on project completion time and quality delivery. The analyzed data will also guide project stakeholders in selecting competent personnel in executing construction projects

Flexural strength properties of porous concrete pavement incorporating nano black rice husk ash

Rice husk ash (RHA) as replacement material in the conventional concrete mixture has widely investigated around the world. However, there is a lack of study on nanoparticle produced from black rice husk ash (BRHA) used as a replacement material in porous concrete pavement mixture. Therefore, this study aims to evaluate the flexural strength properties of porous concrete pavement containing nano black rice husk ash. A nano BRHA dosage of 0, 10, 20, 30 and 40% by weight of binder used throughout the experiments. The total cementitious content used was 450 kg/m3 with a water/binder ratio of 0.34. It found that there appears to be an optimum replacement of approximately 10% nano BRHA, during which time the flexural strength and flexural activity index increase significantly

Characteristics of COVID-19 cases and factors associated with their mortality in Katsina State, Nigeria, April-July 2020

Introduction: COVID-19 was first detected in Daura, Katsina State, Nigeria on 4 April 2020. We characterized the cases and outlined factors associated with mortality. Methods: We analysed the COVID-19 data downloaded from Surveillance Outbreak Response, Management and Analysis System between 4 April and 31 July 2020. We defined a case as any person with a positive SARS-CoV-2 test within that period. We described the cases in time, person, and place; calculated the crude and adjusted odds ratios and 95% confidence intervals for factors associated with mortality. Results: We analysed 744 confirmed cases (median age 35, range 1-90), 73% males and 24 deaths (Case fatality rate 3.2%, Attack rate 8.5/100,000). The outbreak affected 31 districts, started in week 14, peaked in week 26, and is ongoing. Highest proportion of cases in the age groups were 26.7% (184) in 30-39, 21.7% (153) in 20-29 years, and 18.3% (129) in 40-49 years. While the highest case fatality rates in the age groups were 35.7% in 70-79, 33.3% in 80-89 years, and 19.4% in 60-69 years. Factors associated with death were cough (AOR: 9.88, 95% CI: 1.29-75.79), age ≥60 years (AOR: 18.42, 95% CI: 7.48-45.38), and male sex (AOR: 4.4, 95% CI: 0.98-20.12). Conclusion: Male contacts below 40 years carried the burden of COVID-19. Also, persons 60 years and above, with cough have an increased risk of dying from COVID-19. Risk communication should advocate for use of preventive measures, protection of persons 60 years and above, and consideration of cough as a red-flag sign