No.

Titles / Authors /Abstracts

Full Text

No.

1

Morphological Characterization and Soil Quality Assessment along a Toposequence in Obubra Cross Rivers State, Nigeria.

Onyinyechi Jas Kamalu, Henry Ifeanyi Anozie* and Nelson Ovat.

Department of Soil and Crop Science, Faculty of Agriculture, University of Port Harcourt, P.M.B. 5323 Port Harcourt, Nigeria.
• henifez@yahoo.com (corresponding author)

Abstract: This study evaluated soil quality and landscape relationship in Obubra area, Cross River State using morphological, physical and land use characteristics. Soil Quality Morphological Index (SQMI) was used to assess soil health of arable farms on soils of the area. A total of fifty soil samples from three representative soil profiles and nine minipedons evenly distributed along a 10km toposequence from Apiapum to Obubra communities was studied. Three physiographic positions representing the crest, middleslope and toeslope were delineated and sampled. Samples were taken from genetic horizons in the three profiles while in the 9 minipedons sampling was at predetermined depths of 0-20, 20-40, 40-60 and 60-80cm. The colours of the soils vary between Reddish brown (5YR, 5/4) to Pale Yellow (5YR 6/4), while the texture ranged between Loamy sand to Sandy clay loam. The Crest and toeslope were classified as Fine, Kaolinitic, Thermic, Typic Kandiudult respectively while the middleslope was classified as coarse-loamy, isotic, frigid typic dystrudept. The soils are slightly acidic (5.10 – 6.80) while base saturation ranged between 16% – 88%. Bulk density ranged between 0.96-1.77g/cm3 with low Coefficient of Variability (0-17.3%) while Hydraulic conductivity (Ksat) ranged between 3.78-103.44cm/hr with low Coefficient of Variability (10.9-102.1%) The Toeslope had the best quality (SQMI = 3.42), followed by Middleslope (SQMI = 2.78) and least in the Crest (SQMI = 2.75). Soil quality had a good relationship with organic matter (r = 0.87; r2 = 0.76; 1-r2 = 0.24; p = 0.05). This information may help in developing guidelines for agricultural soil management that are based on Topographic sequence of the soil and soil morphological properties.
[Onyinyechi Jas Kamalu, Henry Ifeanyi Anozie and Nelson Ovat. Morphological Characterization and Soil Quality Assessment along a Toposequence in Obubra Cross Rivers State, Nigeria. N Y Sci J 2018;11(6):1-12]. ISSN 1554-0200 (print); ISSN 2375-723X (online). http://www.sciencepub.net/newyork. 1. doi:10.7537/marsnys110618.01.

Keywords: Soil quality, Soil morphology, Toposequence, Profile distribution, Minipeds

Full Text

1

2

Assessment of Knowledge, Attitude & Practice of Healthcare Workers Regarding Infection Control Measures during caring Hepatitis B & C Patients in El-Mahalla El-Kubra Hepatology Teaching Center

Osama A Fakher, Omar O Zidan, Ateia Saleh Elhamaki

Department of Public Health and Community Medicine, Faculty of Medicine, Al-Azhar University, Egypt

ateia.hamaki77@gmail.com

Abstract: Background: Hospital-acquired infection (HAI) is defined as an infection occurring in a patient during the process of care in a hospital or other healthcare facility that was not manifest or incubating at the time of admission. These infections may appear even after discharge. HAI also includes occupational infections among facility staff. Occupational blood-borne infections (BBI) are associated with significant morbidity and mortality. Healthcare workers are exposed to hazardous BBI such as infection with hepatitis B virus (HBV), hepatitis C virus (HCV) and human immune deficiency virus (HIV). HBV and HCV infections are serious public health problems that can have consequences in terms of psychological and occupational diseases. Aim of the Work: To assure protection of healthcare workers, patients and community from hepatitis B & C virus infection. Methodology: A cross sectional study was conducted to assess knowledge, Attitude & Practice of HCWs Regarding Infection Control Measures during Caring Hepatitis B & C Patients in El-Mahalla El-Kubra Herpetology Teaching Center from 1st of November 2016 until end of May 2018. Results: The mean age of the studied HCWs was 28.93±4.88 years, 75.5 % of them were females. The majority (73.6%) of them was nurses, 51.4% of the staff was employed in the internal medicine department, and 8.2% of the staff was specialists. There is statistical significant difference was observed between various hospital staff regarding knowledge about standard precaution related to hand washing and attitude towards hand hygiene between any direct contact with patients. Concerning; application of standard precaution of infection control in the different departments, the best department in total score of application was ICU (87.5%). On the other hand, the worst one was lab (42.5%). Conclusion: There were overall high levels of knowledge and positive attitudes among the hospital staff regarding the principles of standard precautions of the national guidelines for infection control and the majority of the studied staff were adherent to most items of standard precautions of infection control measures Recommendations: Continuous improving and updating the awareness and practice of the hospitals staff about the standard precautions of infection control measures through repeated training courses through the availability of educational material (e.g. manual of IC guidelines, handouts, posters, movies & slides) to be a reference for the hospital staff.

[Osama A Fakher, Omar O Zidan, Ateia Saleh Elhamaki. Assessment of Knowledge, Attitude & Practice of Healthcare Workers Regarding Infection Control Measures during caring Hepatitis B & C Patients in El-Mahalla El-Kubra Hepatology Teaching Center. N Y Sci J 2018;11(6):13-23]. ISSN 1554-0200 (print); ISSN 2375-723X (online). http://www.sciencepub.net/newyork. 2. doi:10.7537/marsnys110618.02.

Key words: KAP, HCWs, IC & Hepatitis B & C

Full Text

2

3

Growth and Vine Nutritional Status of Red Globe Grapevines As Affected With Some Silicon and Summer Pruning Treatments

Faissal F. Ahmed¹, Mohamed A.M. Abada² and Wael B.M.M. Farrag³

¹Hort. Dept. Fac. of Agric. Minia Univ. Egypt

²Viticulture Res. Dept. Hort. Res. Instit. A.R.C. Giza, Egypt

³Egyptian Plant Quarantine, Egypt

faissalfadel@yahoo.com

Abstract: This study was carried out during 2016 and 2017 seasons to test the effect of spraying silicon and summer pruning practices on growth and vine nutritional status of Red Globe grapevines grown under Minia region conditions. The study consisted from nine treatments namely application of silicon in the form of K-Silicate at 0.1 % with or without three summer pruning treatments (pinching the main shoots, removing all leaves under clusters and removing all laterals on the main shoots). Summer pruning was carried out once just after berry setting. Potassium silicate was sprayed thrice at growth start, just after berry setting and one month later. Treating the vines with K-Silicate at 0.1 % either alone or with any summer pruning treatment (pinching the main shoots, removing all leaves under clusters and removing all laterals on the main shoots) considerably stimulated the five growth traits namely number of leaves/shoot, leaf area, wood ripening coefficient, cane thickness and pruning wood weight, chlorophylls a & b, total chlorophylls, total carotenoids, N, P, K, Mg, Ca, Zn, Fe and Mn in the leaves relative to the control treatment. The promotion on these parameters was associated with removing laterals on the main shoots, removing all leaves under clusters and pinching the main shoots, in descending order. Using silicon besides any summer pruning treatments was measurably superior than using silicon alone in enhancing these parameters. Using more summer pruning treatments was obviously superior than using one summer pruning practice. The maximum values were recorded on the vines subjected to silicon and all summer pruning treatments. Carrying out three sprays of K-Silicate at 0.1 % besides pinching the main shoots, removing all leaves under clusters and removing all laterals on the main shoots gave an acceptable yield and good berries quality of Red Globe grapevines.

[Faissal F. Ahmed, Mohamed A.M. Abada and Wael B.M.M. Farrag. Growth and Vine Nutritional Status of Red Globe Grapevines As Affected With Some Silicon and Summer Pruning Treatments. N Y Sci J 2018;11(6):24-29]. ISSN 1554-0200 (print); ISSN 2375-723X (online). http://www.sciencepub.net/newyork. 3. doi:10.7537/marsnys110618.03.

Keywords: Silicon, Red Globe grapevines, summer pruning practice, growth, vine nutritional status

Full Text

3

4

Berries Colouration, Yield and Fruit Quality Parameters As Influenced With Some Silicon and Summer Pruning Treatments

Faissal F. Ahmed1, Mohamed A.M. Abada2 and Wael B.M.M. Farrag3

1Hort. Dept. Fac. of Agric. Minia Univ. Egypt
2Viticulture Res. Dept. Hort. Res. Instit. A.R.C. Giza, Egypt
3Egyptian Plant Quarantine, Egypt
faissalfadel@yahoo.com

Abstract: Berries colouration %, yield as well as physical and chemical characteristics of Red Globe grapes in response to spraying the vines with K-Silicate at 0.1 % and/or three summer pruning practices (pinching the main shoots, removing all leaves under clusters and removing all laterals on the main shoots) were investigated during 2016 and 2017 seasons. Summer pruning was carried out once just after berry setting. Potassium silicate was sprayed thrice at growth start, just after berry setting and one month later. Treating the vines with K-Silicate at 0.1 % either alone or with any summer pruning treatments (pinching the main shoots, removing all leaves under clusters and removing all laterals on the main shoots) considerably stimulated number of clusters per vine and yield expressed in weight (kg.), weight, length and shoulder of cluster, percentage of berries colouration, berry weight and dimensions, T.S.S. %, reducing sugars %, total anthocyanins (mg/g F.W) and decreased total acidity % in the berries relative to the control treatment. The promotion on these parameters was associated with removing laterals on the main shoots, removing all leaves under clusters and pinching the main shoots, in descending order. Using silicon besides any summer pruning treatments was measurably superior than using silicon alone in enhancing these parameters. Using more summer pruning treatments was obviously superior than using one summer pruning practice in this respect. The maximum values were obtained on the vines treated with silicon and subjected to all summer pruning treatments. Carrying out three sprays of K-Silicate at 0.1 % besides (pinching the main shoots, removing all leaves under clusters and removing all laterals on the main shoots) gave on acceptable yield and good berries quality of Red Globe grapevines.
[Faissal F. Ahmed, Mohamed A.M. Abada and Wael B.M.M. Farrag. Berries Colouration, Yield and Fruit Quality Parameters As Influenced With Some Silicon and Summer Pruning Treatments. N Y Sci J 2018;11(6):30-35]. ISSN 1554-0200 (print); ISSN 2375-723X (online). http://www.sciencepub.net/newyork. 4. doi:10.7537/marsnys110618.04.

Keywords: Silicon, summer pruning practices, yield, berries colouration, physical and chemical characteristics of the berries.

Full Text

4

5

Microbial Screening and Nutrient Levels of Cottage Compounded Fish Feed Under Different Storage Conditions

Umma Samuel Bem *, Oshimagye Michael Ibagye, Sadiq Hauwa Ohunene, Dauda, Abdullahi Kida

Department of Fisheries and Aquaculture, Federal University Wukari, Taraba, Nigeria
umma@fuwukari.edu.ng

Abstract: Fish feed is known to occupy a huge space as the single most expensive operating cost in aquaculture. Improved availability must be tilted towards door to door cottage production, proper handling and storage in order to fill the gap in the observed high price of feeds. Therefore, this study aimed at investigating some storage conditions for locally produced fish feed. A 40% CP pelleted diet was prepared and placed in uniformly transparent plastic bags in triplicates as Nylon-sealed and Refrigerated at 40C (NR), Nylon-sealed and under room temperature at 250C (NRT) and Nylon-Sealed and in the dark at 250C (ND) for ninety (90) days. Data for nutrient levels and microbial loads at every 30 days were analyzed by subjecting to one way Analysis of Variance. Proximate composition decreased in crude protein from 24.31± 0.02% to 10.03±0.02%. Lipid levels slightly declined from 10.55±0.05% to 6.62±0.07%, Carbohydrate increased from 51.87±0.13% to 63.4±0.36%. Gram positive bacteria identified were staphylococcus, streptococcus and bacillus species within the ranges of 5.31±0.02 to 4.95±0.20 in MCA, 5.24±0.04 to 3.95±0.21 in NA, and 3.70±0.12 to 5.33±0.18 in MSA media respectively. The persisted fungus identified was Aspergillus niger, with loads increasing during the storage period in NRT and ND (4.0±0.01 and 4.2±0.01) respectively. This study provided information on the possible microorganisms that can persist and affect the quality of feeds and nutrients levels under different storage conditions. It also concluded with suggestions that proper handling and preparation are prerequisite for qualitative and longer shelf life of feed.
[Umma Samuel Bem, Oshimagye Michael Ibagye, Sadiq Hauwa Ohunene, Dauda, Abdullahi Kida. Microbial Screening and Nutrient Levels of Cottage Compounded Fish Feed Under Different Storage Conditions. N Y Sci J 2018;11(6):36-41]. ISSN 1554-0200 (print); ISSN 2375-723X (online). http://www.sciencepub.net/newyork. 5. doi:10.7537/marsnys110618.05.

Keywords: Cottage feed production, storage, nutrient levels, microbial screening

Full Text

5

6

Immunohistochemical and Biochemical Study of validity of Major Salivary Glands on Liver Regeneration after Partial Hepatectomy in Rats

H.F. Ibrahim1, D.A. Labah2, N.H. Sarhan3 and N.B. Nagy1

1Oral Biology Department, Faculty of Dentistry, Tanta University, Tanta, Egypt.
2Oral Biology Department, Faculty of Dentistry, Zagazig University, Zagazig, Egypt.
3Histology and Cell Biology, Faculty of Medicine, Tanta University, Tanta, Egypt.
drhfouad31@gmail.com

Abstract: Background: Major salivary glands, namely; parotid, submandibular and sublingual glands, play vital role in human welfare. Aim of study: To investigate the possible effects of the removal or existence of all major salivary glands on rat liver regeneration following partial hepatectomy (PH). Material and Methods: Thirty male albino rats were randomly allocated into two groups;; Group-I (comprised of ten rats) served as sham control group and Group-II (comprised of twenty rats) served as experimental group and were further subdivided randomly into two equal subgroups; IIA and IIB, which underwent either removal or survival of all their major salivary glands respectively. After two weeks recovery period, all rats of the experimental subgroups endured comparable PH. Then, half of the animals of both groups were euthanized after one week of PH, whereas the other half was sacrificed after two weeks. Before euthanization, blood samples were taken for serum alanine transaminase (ALT) analysis to evaluate liver function. Immunohistochemical staining for proliferating cell nuclear antigen (PCNA), as a marker of cellular proliferation, was done for the remaining liver tissue. Results: Our quantitative ALT and PCNA analyses advocated that lack of all major salivary glands interfered with hepatic function and delayed its regeneration. Conclusion: Salivary glands are essential for efficient liver regeneration.
[H.F. Ibrahim, D.A. Labah, N.H. Sarhan and N.B. Nagy. Immunohistochemical and Biochemical Study of validity of Major Salivary Glands on Liver Regeneration after Partial Hepatectomy in Rats. N Y Sci J 2018;11(6):42-47]. ISSN 1554-0200 (print); ISSN 2375-723X (online). http://www.sciencepub.net/newyork. 6. doi:10.7537/marsnys110618.06.

Keywords: Partial hepatectomy, major salivary glands, liver.

Full Text

6

7

Tree Diversity along elevation in Gangotri Valley of Uttarakhand, India

Arvind Bijalwan

Indian Institute of Forest Management (IIFM), Bhopal, M.P., India
arvindbijalwan276@gmail.com

Abstract: The study was conducted to determine the forest tree species in Gangotri valley of Uttarkashi district of Uttarakhand, India along elevation during 2016 to 2017. The survey was carried out along three elevations, viz. lower (1000-1500 m), middle (1500-2000 m) and higher (2000-2500 m). A total of 54 species were documented in the selected study area comprised of 26 families, out of which three families were of gymnosperms (6 species) and 23 families of angiosperms (48 species). In the lower elevation 27 species were observed of which 17 were restricted to this elevation, in middle elevation 30 species were recorded of which 12 being confined to this elevation and in higher elevation there were 18 species of which 6 being restricted to this height. Some of the species were recorded in more than two zones. Among important tree species there were 19 edibles, 5 fibre, 27 fodder, 29 fuel-wood, 28 medicinal, 8 ornamentals, 30 timber yielding species and some species have miscellaneous uses were observed. Many of the tree species recorded of multipurpose uses thus the use of one tree species were overlapped with another. It was observed that preserving the forest flora from indiscriminate use, these species should be promoted for plantation purpose and simultaneously avoiding the monoculture of particular species.
[Arvind Bijalwan. Tree Diversity along elevation in Gangotri Valley of Uttarakhand, India. N Y Sci J 2018;11(6):48-52]. ISSN 1554-0200 (print); ISSN 2375-723X (online). http://www.sciencepub.net/newyork. 7. doi:10.7537/marsnys110618.07.

Keywords: Trees, Himalaya, Uttarkashi, Gangotri Valley

Full Text

7

8

The Enteral Nutrition as Factor Affecting Duration of Mechanical Ventilation in Critically Ill Patients

Yosry Elsaied Rezk¹, Ahmed Hamdy Abd El Rahman², Mohamed Ahmed El Gazar³, Reham Saied Mohamed Mohamed¹

¹Cardio-Thoracic Surgery Department, Faculty of Medicine, Benha University, Egypt.

²Department of Anaesthesia and Intensive Care, Faculty of Medicine, Benha University, Egypt

3Cardio-thoracic Surgery Department, Faculty of Medicine, Benha University, Egypt.

Drrihamsaid129@gmail.com

Abstract: Background: A growing body of evidence suggest \s that higher fat content diet may be more beneficial for ventilator-dependent patients. Therefore, the aim of the present prospective study was to assess whether the high-fat low-carbohydrate diet has an advantage role over the usual enteral nutrition (EN) diet. Methods: The study was conducted on 40 patients with repertory failure who were admitted to the critical care unit of Benha University and required mechanical ventilation. Patients were divided into two groups: group A which received the usual high-fat low-carbohydrate diet; and group B which received ready regular EN. The statistical analysis was conducted using SPSS version 21. Results: Twenty patients were included in group A and similar number of patients were included in group B. The mean mechanical ventilation duration in group A was 8.5 ± 4.7 days and in group B 4.4 ± 1.6 days, the difference between both group was statistically significant (p <0.001). Similarly, there was a statistically significant difference between the two groups regarding the mean of the length of stay in ICU (group A = 10.6 ± 3.7 days, and group B = 6.1 ±1.2 days; p <0.001). Almost 30% of patients in the group A and B complicated with diarrhea. There is no significant statistical difference between the two groups regarding any of the observed complications. Conclusions: In conclusion, high fat, low carbohydrates diet seems to be associated with shorter duration of mechanical ventilation and length of hospital stay compared to usual PN.

[Yosry Elsaied Rezk, Ahmed Hamdy Abd El Rahman, Mohamed Ahmed El Gazar, Reham Saied Mohamed Mohamed. The Enteral Nutrition as Factor Affecting Duration of Mechanical Ventilation in Critically Ill Patients. N Y Sci J 2018;11(6):53-59]. ISSN 1554-0200 (print); ISSN 2375-723X (online). http://www.sciencepub.net/newyork. 8. doi:10.7537/marsnys110618.08.

Keywords: Enteral feeding; Mechanical ventilation; high-fat diet; ICU

Full Text

8

9

Transportation Solution with New Algorithm

Khilendra Singh ¹, Sanjeev Rajan ²

¹Research Scholar, Hindu College Moradabad, Uttar Pradesh, India

²HOD, Department of Mathematics, Hindu College, Moradabad, Uttar Pradesh, India

ksdhariwal82@gmail.com, dr.rajansanjeev@gmail.com

Abstract: In present work, we have developed the new algorithm for solving the Transportation problem. This useful algorithm is an appropriate solution of Transportation problem faced by common people in their day to day life. By using this algorithm we can find the optimize solution of the given problem. The problem solution is being demonstrated by showing virtual problems and their solutions.

[Singh K, Rajan S. Transportation Solution with New Algorithm. N Y Sci J 2018;11(6):60-62]. ISSN 1554-0200 (print); ISSN 2375-723X (online). http://www.sciencepub.net/newyork. 9. doi:10.7537/marsnys110618.09.

Keywords: Decision making, Optimization, Linear Programming

Full Text

9

10

Performance, Nutrient Digestibility And Cost-Benefit Of Broiler Chickens Fed Four Local Varieties Of Sorghum As Replacement For Maize In Semi-Arid Zone Of Nigeria

Medugu, C.I1., Kwari, I.D2., Igwebuike, J.U2., Adamu, S.B., Sheidu, A., Onyediri, C. Augustine, C3*and Abdulraham, B.S3

1. Borno State Agricultural Development Programme, P.M.B. 1452. Maiduguri, Borno State -Nigeria.
2. Department of Animal Science, University of Maiduguri, P.M.B. 1069, Maiduguri, Borno State-Nigeria.
3. Department of Animal Production, Faculty of Agriculture, Adamawa State University, P.M.B. 25, Mubi - Nigeria.
*e-mail: audaggai@gmail.com; Phone No.: +2348132946167

Abstract: A field study was carried out to investigate the effects of dietary replacement of maize with four local varieties of sorghum on the performance, nutrient digestibility and cost benefit of broiler chickens. Two hundred and twenty-five (225) day-old broiler chicks weighing averagely 341.22 g were randomly allotted to the five (5) experimental diets. The design of the experiment was Randomized Complete Block Design (RCBD) consisting of 45 chicks per treatment and three replicates with 15 chicks per replicate. Pen location served as the blocking factor. The experimental diets contained treatments 1 maize (control) and 2, 3, 4 and 5 contained yellow "Masakwa", white "Kafi-moro, yellow "Kamawanza" and white "Chakalere" sorghum varieties, respectively. The maize and sorghum were used as the major energy source in the diets. The results showed that there were no significant (p<0.05) difference in the final weight, total weight gain, mean daily weight gain, total feed intake, daily feed intake and feed conversion ratio among all the treatments. For the nutrient digestibility, the dry matter (DM), crude protein (CP), ether extract (EE), crude fibre (CF) and ash were significantly (p<0.05) different in all the treatments with the exception of nitrogen-free extract (NFE) which showed no significant (p>0.05) difference. Higher DM was recorded in T4 (''Kamawanza'" sorghum). The cost benefit analyses revealed that feed cost (N) were higher in diets 1 (maize) and 5 ("Chakalere”) sorghum) and lower in diet 4 ("Kamawanza" sorghum). The total feed cost (14) followed the trend of the feed cost with higher cost in diet 1 (maize) with reduction in total feed cost in diet 3 ("Kafi-moro" sorghum). These results suggests that sorghum could replace maize without adverse effect on performance and nutrient digestibility of broiler chickens with reduced cost of production.
[Medugu, C.I., Kwari, I.D., Igwebuike, J.U., Adamu, S.B., Sheidu, A., Onyediri, C. Augustine, C and Abdulraham, B.S. Performance, Nutrient Digestibility And Cost-Benefit Of Broiler Chickens Fed Four Local Varieties Of Sorghum As Replacement For Maize In Semi-Arid Zone Of Nigeria. N Y Sci J 2018;11(6):63-68]. ISSN 1554-0200 (print); ISSN 2375-723X (online). http://www.sciencepub.net/newyork. 10. doi:10.7537/marsnys110618.10.

Keywords: Performance, nutrient digestibility, cost benefit, broiler chickens, maize, sorghum.

Full Text

10

11

Analysis of Linear and Nonlinear Aggregations between Meteorological Parameters and Soil Temperature at Different Depths (Case Study; Synoptic Station of Shiraz)

Reza Sadegh Mansouri 1, Ali Heidari 2 and Mona Golabi 3

.1 Irrigation and Drainage Master Student, Faculty of Water Engineering, Shahid Chamran University of Ahvaz, Iran
mansoory947@yahoo.com
2. Bachelor of Science, Faculty of Water Engineering, Shahid Chamran University of Ahvaz, Iran
3. Assistant Professor of Irrigation and Drainage Department, Faculty of Water Engineering, Shahid Chamran University of Ahvaz, Iran

Abstract: Soil temperature is one of the important variables in hydrological, meteorological, agricultural and climatological studies, which is necessary to be measured and estimated. Due to the fact that soil temperature is measured only at synoptic stations in the country, the lack of stations is a major challenge in many agricultural studies. In the present study linear and nonlinear regression relationships between meteorological parameters including air temperature, relative humidity, sunshine hours and temperature in the depths of soil (5,10,20,30,50,100 cm) at the Meteorological Station of Shiraz in a ten-years period (2005 to 2015) were studied. The data are measured on a daily basis at 3 a.m, 9 a.m and 3 p.m. The results showed that the highest linear and nonlinear determination coefficient between mean air temperature and soil temperature at 3 a.m and in the 5 cm depth are R2= 94.19 and R2 = 94.28, respectively. The highest linear and nonlinear determination coefficient between relative humidity and soil temperature at 3 p.m and in the 10 cm depth are R2 = 64.38 and R2 = 0.033, respectively and The highest linear and nonlinear determination coefficient between sunshine hours and soil temperature at 3 p.m in the depth of 20 cm are R2 = 28.22 and R2 = 21.22, respectively. The air temperature was more correlated with the soil temperature over the other two parameters. Also, nonlinear regression coefficients were more than the linear regression. Finally, the most appropriate relationships for different hours and depths were selected and verified with using the data from 2016. Validation results showed that the presented relationships have acceptable accuracy and these relationships can be used to obtain soil temperature at different hours and depths.
[Reza Sadegh Mansouri, Ali Heidari and Mona Golabi. Analysis of Linear and Nonlinear Aggregations between Meteorological Parameters and Soil Temperature at Different Depths (Case Study; Synoptic Station of Shiraz). N Y Sci J 2018;11(6):69-79]. ISSN 1554-0200 (print); ISSN 2375-723X (online). http://www.sciencepub.net/newyork. 11. doi:10.7537/marsnys110618.11.

Keywords: Soil temperature, Meteorological parameters, Validation, Regression, Weather station, Shiraz

Full Text

11

12

Nonlinear Finite Element Analysis of Steel Fibers Reinforced Post-Tensioned Lightweight Concrete Beams

Ayman H. H. Khalil¹, Ashraf M. A. Heniegal² and, Mohammed Mahmoud Attia³

^1. Professor, Department of Structural Engineering, Ain Shams University, Cairo, Egypt

²· Professor, Department of Structural Engineering, Suez University, Suez, Egypt

³·Assistant Lecturer, Department of Civil Constructions and Architecture, Suez University, Suez, Egypt

¹ayman.hussien.khalil@eng.asu.edu.eg, ²ashraf_henigal@yahoo.com, ³mohammed_mahmoed2011@yahoo.com

Abstract: This paper presents a nonlinear finite element modeling (FEM) and analysis of post-tensioned fibrous lightweight concrete beams made of natural pumice that subjected to static bending load until failure. Nine post-tensioned lightweight simple beams were modeled using ANSYS nonlinear finite element software. The main parameters studies were the volume fractions of discrete steel fibers (DSF) and a partial prestressing ratio (PPR), where the volume fractions of DSF varied of 0% to 1.5%, and PPR varied of 60% to 90%. It was found that the ratio between the FEM to the experimental results of the cracking load, yielding load and ultimate load varies from 0.89 to 1.30, 0.93 to 1.05 and 1 to 1.05 respectively. It was clear that the results of FEM gave similar results to the experimental behavior.

[Ayman H. H. Khalil, Ashraf M. A. Heniegal² and, Mohammed Mahmoud Attia. Nonlinear Finite Element Analysis of Steel Fibers Reinforced Post-Tensioned Lightweight Concrete Beams. N Y Sci J 2018;11(6):80-92]. ISSN 1554-0200 (print); ISSN 2375-723X (online). http://www.sciencepub.net/newyork. 12. doi:10.7537/marsnys110618.12.

Keywords: A nonlinear finite element analysis; Ansys; Post-tensioned; Partial prestressing ratio; Steel fibers; Pumice lightweight aggregate; Lightweight concrete.

Full Text

12

13

Assessment Of Groundwater Contamination By Leachate From Unengineered Dumpsites In Port Harcourt, Nigeria

¹Olushola Olorunfemi Eseyin, ²Udom G.J., ³Osu, Charles I.

¹ Institute of Natural Resources, Environment and Sustainable Development, University of Port Harcourt, Rivers State. Nigeria.

² Department of Geology, Faculty of Science, University of Port Harcourt, Nigeria

³Department of Pure and Industrial Chemistry, Faculty of Science, University of Port Harcourt. P.M.B. 5323,

Port Harcourt, Nigeria. charsike@yahoo.com

Abstract: A significant portion of waste is disposed on unengineered dumpsite. These dumpsites have no liner system and other groundwater pollution control mechanism. This study was carried out to assess physiochemical parameters of soil, edible vegetables, leachate, and borehole water around Unengineered Dumpsite in Port Harcourt. Nigeria. Samples of leachates, soil, edible vegetables and borehole water within and 300m away from each unengineered dumpsites were collected and analysed for physicochemical parameters which include pH, Total Dissolved Solids, Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Electrical Conductivity (EC), Nitrate, Phosphate, Sulphate, Chlorine and heavy metals. Analysis of the leachates, soil and borehole waters showed that there is gradual movement of contaminants along the potential pathway – with concentrations decreasing as we move from the leachate to the soil and eventually groundwater resources. This may be due to leachate transport from dumpsite to ground water. This study shows that there is high pollution around the unengineered dumpsites, which can lead to high health risk in Port Harcourt, Rivers State. Nigeria.

[Olushola Olorunfemi Eseyin, Udom G.J., Osu, Charles I. Assessment Of Groundwater Contamination By Leachate From Unengineered Dumpsites In Port Harcourt, Nigeria. N Y Sci J 2018;11(6):93-100]. ISSN 1554-0200 (print); ISSN 2375-723X (online). http://www.sciencepub.net/newyork. 13. doi:10.7537/marsnys110618.13.

Keywords: unengineered dumpsites, contaminate, environment, leachate

Full Text

13