Scientific Research and Essays

  • Abbreviation: Sci. Res. Essays
  • Language: English
  • ISSN: 1992-2248
  • DOI: 10.5897/SRE
  • Start Year: 2006
  • Published Articles: 2738

Table of Content: 2 August; 7(30)

August 2012

Analysis of energy as a precondition for improvement of living conditions and poverty reduction in sub-Saharan Africa

    This paper examines the link between availability of energy and improvement of living condition and poverty reduction in sub-Saharan Africa. It argued that modern sources of energy are required for the improvement of living standards; may be by helping to create jobs and by boosting productivity. For energy exporters, particularly oil producers, they provide revenues that may...

Author(s):   Muawya Ahmed Hussein and Walter Leal Filho

August 2012

Production and applications of microbial lipases: A review

    Lipases (triacylglycerol ester hydrolases, EC 3.1.1.3) are biotechnologically relevant enzymes that find immense applications in food, detergent and pharmaceutical industries. They catalyze the breakdown of fats and oils as well as various synthetic reactions such as esterification, transesterification and interesterification in organic solvents. Microbial lipases stand out as...

Author(s):   Aliyu Salihu and Md. Zahangir Alam

August 2012

Structural patterns identified through a historical analysis of Anatolian stone constructions

    This paper derives structural patterns through the analysis of ancient Anatolian structural configurations built up by stone. Related archaeological sources indicate that ancient Anatolian constructions incorporating only stone as the principal building material are infrequent. Almost all of the walls of the dwellings and monumental structures were composite. They were...

Author(s):   Kemal Reha KAVAS

August 2012

Frequency of lower respiratory tract infections in Karachi and comparison of different antibiotic agents used for the treatment

    The objective of this study is to compare the use of different antibiotics in lower respiratory tract infections at Jinnah postgraduate Medical Centre (JPMC), Karachi, Pakistan. A non blind randomized study design was used to for this study which was carried out in JPMC, for a period of four months. A total of 137 patients infected with various infections were selected and...

Author(s):   Sumbul Shamim, Saima Mahmood Malhi, Muhammad Riaz Bhatti, Beena Khan and Tahir Yousuf

August 2012

High capacity three-component dynamometer design, construction and its calibration

    In this study, a three-component dynamometer design, construction and its calibration were carried out. The dynamometer system consisted of three 20 kN high capacity single point load cells, three isolated strain gauge input modules, a terminal board, an analogue-to-digital card and a software for recording and analyzing the data. The load cells were mounted in three different...

Author(s):   Yakup Turgut and Ihsan Korkut

August 2012

Wheat yellow rust resistance improvement in wheat and maize cross progenies using double haploid method

    This research was conducted to produce doubled haploid lines of wheat through chromosome elimination (wheat × maize crosses) technique. Three wheat hybrids: DH-29: MILAN / SH7 // SHIROODI, DH-30: INIA // SW89.3064 / STAR / 3 / MILAN / SHA7 and DH-32: NANJING8201 / KAUZ // MILAN / SHA7 were pollinated with maize pollen from two genotypes H1: KSC108, 403 and...

Author(s):   Tayebeh Bakhshi, Reza Bozorgipour, Khodadad Mostafavi and Hamed Haddad Kashani

August 2012

Interaction between barley grain processing and source of dietary protein on nutrients digestibility, rumen pH and ammonia concentration in sheep

  The effects of barley grain processing (whole vs. cracked) combined with two different protein sources (urea vs. soybean meal) on nutrients digestibility, rumen pH and ammonia concentration in sheep were investigated. Four permanently rumen fistulated Mehraban sheep were allocated in a 4×4 Latin square design. Four different experimental diets were used: 1) whole barley grain with urea...

Author(s):     S. Afshar, M. M. Tabatabaei, M. Kazemi-Bonchenari, M. Eghbali and S. Barkhori

August 2012

A novel adaptive color to grayscale conversion algorithm for digital images

    A color image sent to the monochrome device must undergo the color-to-grayscale conversion process. Although the conventional color-to-grayscale conversion algorithms are widely used, their performance is questionable in certain circumstances and poor quality resultant grayscale images will be produced. This paper tackled some drawbacks of the conventional methods by...

Author(s): Wei Hong Lim and Nor Ashidi Mat Isa

August 2012

A novel adaptive color to grayscale conversion algorithm for digital images

    A color image sent to the monochrome device must undergo the color-to-grayscale conversion process. Although the conventional color-to-grayscale conversion algorithms are widely used, their performance is questionable in certain circumstances and poor quality resultant grayscale images will be produced. This paper tackled some drawbacks of the conventional methods by...

Author(s): Wei Hong Lim and Nor Ashidi Mat Isa

August 2012

Hydrogeochemical and isotopic evaluation of groundwater in Jabal Hafit area, Eastern Abu Dhabi Emirate, United Arab Emirates (UAE)

    This study deals with groundwater quality of the Jabal Hafit area in the southeastern part of the UAE. In order to assess groundwater in the study area, 21 samples were collected from groundwater wells. Of these, 12 samples were analyzed for stable isotopes of δD and δ18O. The results showed that the sequence of cations dominance in groundwater in the study...

Author(s):     Ahmed A. Murad, Saber M. Hussein and Aidah Al-Abdouli

August 2012

Ahmed A. Murad1*, Saber M. Hussein1 and Aidah Al-Abdouli2

    The area of robot path planning and navigation has been studied by various researchers over the last decades, resulting in a large number of works. One of the most challenging fields in motion planning is dealing with unknown environment, which is known as online path planning. This paper aims to improve one of the most famous methods for online navigation, that is, Bug algorithm, which has been...

Author(s):   Weria Khaksar, S. H. Tang and Mansoor Khaksar