Electronic Journal of University of Aden for Basic and Applied Sciences https://ejua.net/index.php/EJUA-BA University of Aden en-US Electronic Journal of University of Aden for Basic and Applied Sciences 2708-0684 Front Cover https://ejua.net/index.php/EJUA-BA/article/view/53 Abdulrahman Ahmed Mohren Copyright (c) 2020 Abdulrahman Ahmed Mohren https://creativecommons.org/licenses/by-nc/4.0 2020-12-30 2020-12-30 1 4 A SURVEY STUDY OF TERMITES IN ADEN GOVERNORATE - YEMEN https://ejua.net/index.php/EJUA-BA/article/view/54 <p style="text-align: justify;">Termites are distributed in the tropical and semitropical areas which include the Arabian Peninsula. Thirty-three species of termites were recorded in the Arabian Peninsula especially in the southwestern of Arabia which related to the fauna of tropical Africa (Ethiopian region). This study aims to record the termite species in different habitats in Aden governorate. The samples of the termites collected by broken the dry trees, subway on the wall, covers of the old houses and windows and wood doors from five different regions from Aden during the period of November 2016 to November 2017. The result reveals four species of termites, which are: <em>Heterotermes</em> sp., <em>Microcerotermes</em> sp1, <em>Microcerotermes</em> <em>longignathus</em> and <em>Amitermes</em> <em>messinae</em> (Fuller, 1922) which related to three genera that belong to two families: Termitidae and Rhinotermitidae. The species <em>Microcerotermes longignathus</em> is the first record in Aden governorate, While <em>Heterotermes</em> sp is considered the most widespread in Aden governorate with 64%.</p> Nasser S. Ba-Fadel Saeed A. Ba-Angood Abdullah N. Al-Hindi Copyright (c) 2020 Nasser S. Ba-Fadel, Saeed A. Ba-Angood, Abdullah N. Al-Hindi https://creativecommons.org/licenses/by-nc/4.0 2020-12-30 2020-12-30 1 4 175 180 10.47372/ejua-ba.2020.4.54 THE GENERALIZED Q-BESSEL MATRIX FUNCTION OF TWO VARIABLES https://ejua.net/index.php/EJUA-BA/article/view/55 <p style="text-align: justify;">The Bessel function is probably the best known special function, within pure and applied mathematics. In this paper, we introduce the generalized q-analogue Bessel matrix function of two variables. Some properties of this function, such as generating function, q-difference equation, and recurrence relations are obtained.</p> Fadhl S. N. Alsarahi Copyright (c) 2020 Fadhl S. N. Alsarahi https://creativecommons.org/licenses/by-nc/4.0 2020-12-30 2020-12-30 1 4 181 185 10.47372/ejua-ba.2020.4.55 COMPARATIVE EVALUATION OF PHYSICAL PROPERTIES OF SOME YEMENI CRUDE AND FUEL OIL https://ejua.net/index.php/EJUA-BA/article/view/56 <p style="text-align: justify;">Due to the high significance of crude oil to modern society as a source of energy and as raw material for a wide chemical and petrochemical industries; in this study, we evaluate the characteristics of certain Yemeni crude, and fuel oils specifically Mareb crude oil blend, Masila crude oil blend plus two samples from Sounah and Hijah oil fields in Masila basin. The general specifications of these crudes and fuel oils are determined and compared with some other regional and international types including Brent and West Texas benchmark crudes using the published data in the specialized literature. It is revealed that Mareb crude oil blend is the lightest and sweetest crude oil followed by Sounah crude while Masila is considered Medium crude and Hijah field is the heaviest with medium sulfur content. Mareb, Masila blends, and Sounah field fuel oils are considered low sulfur fuel oils with sulfur content below the 1% standard marketable fuels; while the Hijah fuel oil slightly above, and this is absorbed within the marketable blend.</p> Rokhsana Mohammed Ismail Fatima Sahleh Nagi Copyright (c) 2020 Rokhsana Mohammed Ismail, Fatima Sahleh Nagi https://creativecommons.org/licenses/by-nc/4.0 2020-12-30 2020-12-30 1 4 186 192 10.47372/ejua-ba.2020.4.56 FIRST RECORD OF EIGHT BRACHYURAN CRABS’ SPECIES (CRUSTACEA-DECAPODA) IN SOCOTRA ARCHIPELAGO IN THE INDIAN OCEAN-YEMEN https://ejua.net/index.php/EJUA-BA/article/view/57 <p style="text-align: justify;">Yemen has a number of islands on the Red Sea, including Kamaran, Uqban, Hanish Archipelago Islands, Mayun (older name: Perim), and many islands at the Gulf of Aden, in the Indian Ocean, this also includes the Socotra Archipelago located 240 km from the east of the Horn of Africa and 380 km from Yemen. Socotra Island has a variety of habitats including sandy shores, rocky shores, mud flats, sponge areas, coral reefs, and freshwaters. This study aims to record the brachyuran crab’s species in different habitats in Socotra Archipelago. The specimens of the brachyuran crabs collected by hand, hand nets, and snorkeling up to 3-meter depth. The specimens were collected from 6 sites in Socotra Islands during separate periods time from 1984 to 2000, these specimens kept in Rostock University and Zoologische Staatssammlung München (ZSM)-Germany. In this present study, 32 brachyuran crabs’ species were recorded belonging to 11 superfamilies, 14 families, and 29 genera. Eight of these species represent the first records in Socotra Islands. The dominant brachyuran crab families in this region were Xanthidae, 35% with 11 species recorded, followed by Grapsidae, 19% with 6 species.</p> Abdullah N. Al-Hindi Wolfgang Wranik Michael Apel Stefan Forster Roland Melzer Copyright (c) 2020 Abdullah N. Al-Hindi, Wolfgang Wranik, Michael Apel, Stefan Forster, Roland Melzer https://creativecommons.org/licenses/by-nc/4.0 2020-12-30 2020-12-30 1 4 193 207 10.47372/ejua-ba.2020.4.57 ESTIMATION OF PHYSICAL AND CHEMICAL PROPERTIES OF GROUNDWATER OF SELECTED AREA FROM AL-DHALIA DIRECTORATE, AL-DHALIA GOV., YEMEN https://ejua.net/index.php/EJUA-BA/article/view/58 <p style="text-align: justify;">In this study, the concentrations of the physical properties such as the acidity number (pH), temperature (T), electrical conductivity (EC), total dissolved solids (TDS) and total hardness (TH) and, the chemical properties such as calcium (Ca<sup>2+</sup>), magnesium (Mg<sup>2+</sup>), sodium (Na<sup>+</sup>), potassium (K<sup>+</sup>), nitrates (NO<sub>3</sub><sup>-</sup>), sulfates (SO<sub>4</sub><sup>2-</sup>), bicarbonate (HCO<sub>3</sub><sup>-</sup>), phosphates (PO<sub>4</sub><sup>3-</sup>), fluoride (F<sup>-</sup>), and chloride (Cl<sup>-</sup>) in the groundwater in selected areas in Al-Dhalia district, Al-Dhalia,&nbsp; governorate were determined by collecting water samples from 16 wells and thereafter the samples were analyzed, in the laboratory of the water resources authority in Aden, according to the recommended methods mentioned in the literature. The analysis results showed that most of the well water is not suitable for drinking due to their contents of some chemical and physical properties were exceeded the maximum permissible limit for WHO (1997) and Yemen ministry of water and environment (YMWE,1999).</p> Mohamed Muthana Taher Shaif Mohamed Kasem Saleh Bassem Obaid Ali Saif Copyright (c) 2020 Mohamed Muthana Taher, Shaif Mohamed Kasem Saleh, Bassem Obaid Ali Saif https://creativecommons.org/licenses/by-nc/4.0 2020-12-30 2020-12-30 1 4 208 217 10.47372/ejua-ba.2020.4.58 PHYSIOLOGICAL STUDY OF OLIVE OIL EFFECT ON IBUPROFEN-INDUCED LIVER AND KIDNEY DYSFUNCTION IN LOCAL MALE RABBITS https://ejua.net/index.php/EJUA-BA/article/view/59 <p style="text-align: justify;">Ibuprofen (IB), is one of the common nonsteroidal anti-inflammatory drugs (NSAIDs), it is mostly used for the management of pain, fever, and inflammations. In addition to its beneficial effects; IB has also been reported to be associated with some adverse effects. Thus, the present study was aimed to investigate the possible beneficial effects of olive oil (OO) against the IB -induced dysfunction of liver and kidney parameters in male rabbits. This study was conducted on 18 local male rabbits weighing between (900 - 1000 g) for 30 days, rabbits were divided into three equal groups; control group (C), ibuprofen group (IB), and ibuprofen +olive oil group (IB + OO), each group included six rats. At the end of the experiment, blood samples were collected for biochemical assessment of the liver and kidney functions. The results showed that IB caused a significant increase (<em>P˂ 0.001</em>) in alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), urea (Ur), creatinine (Cr), and uric acid (UA). A significant decrease in the total protein (TP) and albumin (AL) (<em>P˂ 0.001</em>) and (<em>P˂ 0.05</em>) respectively showed in the IB group compared to the control group. Treatment rabbits with OO showed significant improvement in renal and liver functions; the activity enzymes of ALT, AST, and ALP significantly decreased, and the levels of TP and AL significantly increased. The current results were in agreement with other previous studies which informed that the IB has adverse effects on the functional capacities of the liver and the kidney. Further studies are needed to evaluate this ameliorative effect of OO on other medicines and pollutants.</p> Abdulrahman Salem Omer Yaseen Khaled Saleh Omer Abdulmanea Rafat Mohsen Hussein Salem Copyright (c) 2020 Abdulrahman Salem Omer Yaseen, Khaled Saleh Omer Abdulmanea, Rafat Mohsen Hussein Salem https://creativecommons.org/licenses/by-nc/4.0 2020-12-30 2020-12-30 1 4 218 224 10.47372/ejua-ba.2020.4.59 HPLC-ESI-MS ANALYSIS OF SOME BIOACTIVE SUBSTANCES IN TWO YEMENI MEDICINAL PLANTS https://ejua.net/index.php/EJUA-BA/article/view/60 <p style="text-align: justify;">Plants have abundant bioactive components and play an important role in folk medicine, owing to their health benefits in the treatment of many diseases, partially due to the secondary metabolite compositions. Nonetheless, detailed information on these substances is still limited. The recent work was aimed at investigating the bioactive substances of two Yemeni medicinal plants (<em>i.e. Plectranthus asirensis </em>and<em> Plectranthus amboinicus</em>) using reversed-phase high-performance liquid chromatography-electrospray ionization-mass spectrometry in a positive ionization mode. The proposed method provided a tentative identification of several constituents such as alkaloids, fatty acids, steroids, and terpenoids. The obtained results highlight the importance of studied plants as a promising natural source of bioactive compounds.</p> Adel A. M. Saeed Aisha Mohammed Ali Taha Abubaker Fdhel Copyright (c) 2020 Adel A. M. Saeed, Aisha Mohammed Ali, Taha Abubaker Fdhel https://creativecommons.org/licenses/by-nc/4.0 2020-12-30 2020-12-30 1 4 225 235 10.47372/ejua-ba.2020.4.60 RESPONSE OF SESAME YIELD (SESAMUM INDICUM L.) CHARACTERS AND ITS COMPONENTS TO SOME AGRICULTURAL TREATMENTS https://ejua.net/index.php/EJUA-BA/article/view/61 <p style="text-align: justify;">One field experiment was carried out at the farm of Nasser's Faculty of Agricultural Sciences, the University of Aden in Lahej governorate during the two seasons 2011 and 2012 to study the response of sesame <em>(Sesamum indicum L.)</em> cultivar (Balady Red) to sowing dates, Nitrogen levels and plant density on growth, yield and its components characters and its interactions.</p> <ol> <li class="show">It could be concluded from this study that sowing dates had a significant effect on all yield and components characters. The highest values of all yield and its components characters were obtained from the early sowing date (15 August) during the two seasons.</li> <li class="show">Increasing nitrogen levels up to (160 kg N / hectare) significantly increased all yield and components characters during the two seasons.</li> <li class="show">Increasing plant density up to (250000 plant/hectare) gave a significant increase in seed yield/hectare, oil yield/hectare, and yield of crude protein/hectare.</li> <li class="show">Plant density up to (133333 plant/hectare) increased significantly the number of capsules/plant, seed index, seed yield/plant, seed oil content %, and seed crude protein content %.</li> <li class="show">Plant density up to (222222 plant/hectare) increased significantly seed crude protein content % and crude protein yield (Mt/hectare).</li> </ol> Yaser Mohammed Ali Ahmed Rakiba Mehammed Abdulla Fadel Zaid Othman Salem Ahmed Copyright (c) 2020 Yaser Mohammed Ali Ahmed, Rakiba Mehammed Abdulla Fadel, Zaid Othman Salem Ahmed https://creativecommons.org/licenses/by-nc/4.0 2020-12-30 2020-12-30 1 4 236 246 10.47372/ejua-ba.2020.4.61 ON α-MINIMAL AND α-MAXIMAL SETS IN TOPOLOGICAL SPACES https://ejua.net/index.php/EJUA-BA/article/view/62 <p style="text-align: justify;">In this paper, we introduce and study new types of sets called α-minimal open and α-maximal open sets and study some of their fundamental properties, furthermore, relation shapes between there concepts and some known concepts are studied. Finally, some counter examples are proved.</p> Khaled M. A. AL Hamadi Ebtesam Q. A. Mohammed Copyright (c) 2020 Khaled M. A. AL Hamadi, Ebtesam Q. A. Mohammed https://creativecommons.org/licenses/by-nc/4.0 2020-12-30 2020-12-30 1 4 247 250 10.47372/ejua-ba.2020.4.62