WAHEED EMAM - Academia.edu (original) (raw)

Papers by WAHEED EMAM

African Journal of Biological Sciences

African Journal of Biological Sciences, 2018

International Journal of Development, 2021

Ras Shukeir area is one of the most important regions for petroleum activities in Egypt. It is so... more Ras Shukeir area is one of the most important regions for petroleum activities in Egypt. It is south east Ras Gharib (30 km) and north to Hurghada (150 km). Its coastal area lies on the Suez Gulf from the east, while its western area is desert land. There are shortage of knowledge on the Hydrogeological conditions and characterless of the groundwater occurrences in Ras Shoukeir which are necessary for establishing new petroleum facilities there and to forecasting flash flood. Therefore this review is an attempt to collect the most available data to help decision makers for their future social and economic developmental projects in this area. Climate of Ras Shukeir is a hot arid with dry and hot summer, whereas few sprinkles may occur in spring. The average annual temperature is 22.2°C, while the average precipitation is 5 mm. The foremost north-westerly winds are dominated. No surface water supply is present at this region except that from wadis during rainfall which is very low. The freshwater supply is based mainly on the groundwater aquifer and desalination of sea water, where there are small salt marshes. The main characteristics of the groundwater known to exist in this area were discussed. Two main and distinctive types of groundwater according to its origin are found; the first is of purely meteoric origin and the other being formed during the different geological times (formation water). The latter is being highly saline and occurred on deep wells and mixed with minerals and sulphites. Water is good in winter after the rainfall in the ranges and unpleasantly salty in the summer or during rainless period. For normal drinking purposes, fresh water of salinity up to 1000 ppm can be used. Saline water, of salinity ranging from 1000 to 3000 ppm is used for limited irrigation in a sandy soil. The courses of the hydrographic basins are filled with the Quaternary alluvial deposits which are formed of sand, gravel and boulder. Water depth in wells ranges between 0.5 and 3.2 m and the discharge ranges between 2 and 5 m 3 /day. Most deep hand-dug wells were established between 15 and 25 m in sand before reaching the water table, which is very close to or within the bed rock and obtaining a regular supply of between 10 and 50 m 3 per day.

African Journal of Biological Sciences, 2018

The aim of this study is to evaluate the disinfection effect of anolyte water on some species of ... more The aim of this study is to evaluate the disinfection effect of anolyte water on some species of bacteria detected in sewage sludge, by using different concentrations of anolyte water and different incubation periods. The results showed that tested bacterial species showed different reduction in their numbers by increasing incubation periods. Also, the obtained results showed that anolyte water in concentration of 1 ml produced 100% inactivation for E. coli, Staphylococcus sp., Bacillus sp., and Enterococcus sp. after 30min exposure time. While, 2ml anolyte water produced complete inactivation for E. coli, Staphylococcus sp., Bacillus sp. and Enterococcus sp. after 20 min exposure time. In conclusion anolyte water can be used safely for inactivation of some pathogens found in sewage sludge.

International Journal of Development, Dec 25, 2016

The present work deals with the macroscopic and microscopic anatomy of Octopus vulgaris from Alex... more The present work deals with the macroscopic and microscopic anatomy of Octopus vulgaris from Alexandria water on the Mediterranean sea. The digestive system is formed of the buccal mass, oesophagus, crop, stomach, caecum, intestine and rectum. The associated glands included the anterior and posterior salivary glands, liver and digestive duct appendages (Pancreas). In the present study, the structure of the buccal mass, with the upper and lower jaws has been described. Also the radular teeth, which are specific for their morphology and considered of taxonomic evidence for different octopod species, have been described. The oesophagus enters the crop on its right side approximately one third of the way from its anterior end. Musculature and lining epithelium of the two regions have been studied. The stomach is a region where the grinding of food occurs so that its lining epithelium is covered by thick layer of cuticle. The caecum is a coiled organ which lies below the stomach and has primary and secondary leaflet-like structures. Secretory cells are found between the columnar cells which form the lining epithelium. The intestine is a long tube, which is followed by short rectum, and has internal folds with scattered mucous cells between the columnar epithelial cells. The rectum has no mucous cells and its lining epithelium is covered with a thin layer of cuticle. The anterior salivary glands are smaller in size than the posterior ones and have two types of secretory cells like the posterior salivary glands. The digestive gland is a large grayish cigar-shaped organ, consisting of two fused lobes. It has two types of cells, big vaculated cells and small triangular ones. The pancreas lies around the two digestive ducts and forms a small wedge-shaped appendages, each is formed of a single layer of short columnar cells.

Egyptian Journal of Aquatic Biology and Fisheries, 1997

Egyptian Journal of Aquatic Biology and Fisheries, 1999

Egyptian journal of aquatic biology and fisheries, 1999

Egyptian Journal of Aquatic Biology and Fisheries, 1997

African Journal of Biological Sciences

The Red Sea is characterized by its high temperature, pH and salinity in summary which affect gre... more The Red Sea is characterized by its high temperature, pH and salinity in summary which affect greatly the eggs development and early hatched embryos of cephalopods. Therefore, the present work aims to study the structure of eyes and optic lobes of the hatchlings of the cuttlefish Sepia savignyi to know how these structures can help these juveniles to live in their habitats in the Red Sea. Also, the structures of these organs were compared with that in other hatchlings of cephalopods in other ecological niches. The results indicated that the anatomical structure of eyes and the optic lobes is related to their functions and the different needs of the lifestyle of hatchling of this cuttlefish in its environment in the Red Sea for swimming, sensation and foraging in its habitats.

Indian Journal of Marine Sciences, 1994

82-85Limpets from the Gulf of Oman and Arabian Gulf, collected during 1992, were studied for grow... more 82-85Limpets from the Gulf of Oman and Arabian Gulf, collected during 1992, were studied for growth and age estimation and to examine the intraspecific variations in shell allometery. The longevity of Cellana karachiensis was 6 y. The growth increments were higher for smaller limpets than older ones. Specimens from the Gulf of Oman with 19-40 mm length have relatively higher total wet weight and shell weight and lower relative coefficient of condition (Kn) than those from the Arabian Gulf. The ratio of the posterior to anterior shell sloping walls was 1.288 and 1.298 for the populations from the Gulf of Oman and the Arabian Gulf, respectively. The regression constant (b) of various relationships of shell length to shell breadth, shell height, and shell sloping walls, were relatively similar for both populations, but with a varying regression constant (A)

African Journal of Biological Sciences, 2018

International Journal of Development, 2021

Ras Shukeir area is one of the most important regions for petroleum activities in Egypt. It is so... more Ras Shukeir area is one of the most important regions for petroleum activities in Egypt. It is south east Ras Gharib (30 km) and north to Hurghada (150 km). Its coastal area lies on the Suez Gulf from the east, while its western area is desert land. There are shortage of knowledge on the Hydrogeological conditions and characterless of the groundwater occurrences in Ras Shoukeir which are necessary for establishing new petroleum facilities there and to forecasting flash flood. Therefore this review is an attempt to collect the most available data to help decision makers for their future social and economic developmental projects in this area. Climate of Ras Shukeir is a hot arid with dry and hot summer, whereas few sprinkles may occur in spring. The average annual temperature is 22.2°C, while the average precipitation is 5 mm. The foremost north-westerly winds are dominated. No surface water supply is present at this region except that from wadis during rainfall which is very low. The freshwater supply is based mainly on the groundwater aquifer and desalination of sea water, where there are small salt marshes. The main characteristics of the groundwater known to exist in this area were discussed. Two main and distinctive types of groundwater according to its origin are found; the first is of purely meteoric origin and the other being formed during the different geological times (formation water). The latter is being highly saline and occurred on deep wells and mixed with minerals and sulphites. Water is good in winter after the rainfall in the ranges and unpleasantly salty in the summer or during rainless period. For normal drinking purposes, fresh water of salinity up to 1000 ppm can be used. Saline water, of salinity ranging from 1000 to 3000 ppm is used for limited irrigation in a sandy soil. The courses of the hydrographic basins are filled with the Quaternary alluvial deposits which are formed of sand, gravel and boulder. Water depth in wells ranges between 0.5 and 3.2 m and the discharge ranges between 2 and 5 m 3 /day. Most deep hand-dug wells were established between 15 and 25 m in sand before reaching the water table, which is very close to or within the bed rock and obtaining a regular supply of between 10 and 50 m 3 per day.

Indian Journal of Marine Sciences, 1994

African Journal of Biological Sciences, 2018

The aim of this study is to evaluate the disinfection effect of anolyte water on some species of ... more The aim of this study is to evaluate the disinfection effect of anolyte water on some species of bacteria detected in sewage sludge, by using different concentrations of anolyte water and different incubation periods. The results showed that tested bacterial species showed different reduction in their numbers by increasing incubation periods. Also, the obtained results showed that anolyte water in concentration of 1 ml produced 100% inactivation for E. coli, Staphylococcus sp., Bacillus sp., and Enterococcus sp. after 30min exposure time. While, 2ml anolyte water produced complete inactivation for E. coli, Staphylococcus sp., Bacillus sp. and Enterococcus sp. after 20 min exposure time. In conclusion anolyte water can be used safely for inactivation of some pathogens found in sewage sludge.

ARTICLE INFO ABSTRACT Article History: Received: Dec.15, 2012 Accepted: Jan18, 2013 Available onl... more ARTICLE INFO ABSTRACT Article History: Received: Dec.15, 2012 Accepted: Jan18, 2013 Available online: July 2013 _________________

In the present work the optical glands of the reef squid Lessoniana lessoniana were are found in ... more In the present work the optical glands of the reef squid Lessoniana lessoniana were are found in young and adult individuals. They are paired small elongated organs that lie at the aboral end of the olfactory lobe, on a level with the optic tract. Histological, the cells of the optical gland are large, with about 60 um in diameter and have spherical nuclei (20 um in diameter). Their cytoplasm is coarsely granulated. Neurosecretory granules were seen in cells of optical glands and stained with paraldehyde fuchsin. No distinct neuropil was observed in these glands and these glands are rich in blood supply. The optic glands were found to be connected with optic nerve fibres to the dorso-lateral lobes of the brain. The function of the optical glands of Sepioteuthis lessoniana was also discussed in this study. [Waheed M. Emam and Tarek G.Ali. A study on the optic glands of Sepioteuthis lessoniana from the Red Sea. Life Sci J 2014;11(4):327-331]. (ISSN:1097-8135). http://www.lifesciencesi...

International Journal of Development, Dec 25, 2016

The present work deals with the macroscopic and microscopic anatomy of Octopus vulgaris from Alex... more The present work deals with the macroscopic and microscopic anatomy of Octopus vulgaris from Alexandria water on the Mediterranean sea. The digestive system is formed of the buccal mass, oesophagus, crop, stomach, caecum, intestine and rectum. The associated glands included the anterior and posterior salivary glands, liver and digestive duct appendages (Pancreas). In the present study, the structure of the buccal mass, with the upper and lower jaws has been described. Also the radular teeth, which are specific for their morphology and considered of taxonomic evidence for different octopod species, have been described. The oesophagus enters the crop on its right side approximately one third of the way from its anterior end. Musculature and lining epithelium of the two regions have been studied. The stomach is a region where the grinding of food occurs so that its lining epithelium is covered by thick layer of cuticle. The caecum is a coiled organ which lies below the stomach and has primary and secondary leaflet-like structures. Secretory cells are found between the columnar cells which form the lining epithelium. The intestine is a long tube, which is followed by short rectum, and has internal folds with scattered mucous cells between the columnar epithelial cells. The rectum has no mucous cells and its lining epithelium is covered with a thin layer of cuticle. The anterior salivary glands are smaller in size than the posterior ones and have two types of secretory cells like the posterior salivary glands. The digestive gland is a large grayish cigar-shaped organ, consisting of two fused lobes. It has two types of cells, big vaculated cells and small triangular ones. The pancreas lies around the two digestive ducts and forms a small wedge-shaped appendages, each is formed of a single layer of short columnar cells.

Egyptian Journal of Aquatic Biology and Fisheries, 1997

ARTICLE INFO ABSTRACT Article History Received: Feb. 5, 2014 Accepted: April 30, 2014 Available o... more ARTICLE INFO ABSTRACT Article History Received: Feb. 5, 2014 Accepted: April 30, 2014 Available online: Dec. 2014 _________________

African Journal of Biological Sciences

African Journal of Biological Sciences, 2018

International Journal of Development, 2021

Ras Shukeir area is one of the most important regions for petroleum activities in Egypt. It is so... more Ras Shukeir area is one of the most important regions for petroleum activities in Egypt. It is south east Ras Gharib (30 km) and north to Hurghada (150 km). Its coastal area lies on the Suez Gulf from the east, while its western area is desert land. There are shortage of knowledge on the Hydrogeological conditions and characterless of the groundwater occurrences in Ras Shoukeir which are necessary for establishing new petroleum facilities there and to forecasting flash flood. Therefore this review is an attempt to collect the most available data to help decision makers for their future social and economic developmental projects in this area. Climate of Ras Shukeir is a hot arid with dry and hot summer, whereas few sprinkles may occur in spring. The average annual temperature is 22.2°C, while the average precipitation is 5 mm. The foremost north-westerly winds are dominated. No surface water supply is present at this region except that from wadis during rainfall which is very low. The freshwater supply is based mainly on the groundwater aquifer and desalination of sea water, where there are small salt marshes. The main characteristics of the groundwater known to exist in this area were discussed. Two main and distinctive types of groundwater according to its origin are found; the first is of purely meteoric origin and the other being formed during the different geological times (formation water). The latter is being highly saline and occurred on deep wells and mixed with minerals and sulphites. Water is good in winter after the rainfall in the ranges and unpleasantly salty in the summer or during rainless period. For normal drinking purposes, fresh water of salinity up to 1000 ppm can be used. Saline water, of salinity ranging from 1000 to 3000 ppm is used for limited irrigation in a sandy soil. The courses of the hydrographic basins are filled with the Quaternary alluvial deposits which are formed of sand, gravel and boulder. Water depth in wells ranges between 0.5 and 3.2 m and the discharge ranges between 2 and 5 m 3 /day. Most deep hand-dug wells were established between 15 and 25 m in sand before reaching the water table, which is very close to or within the bed rock and obtaining a regular supply of between 10 and 50 m 3 per day.

African Journal of Biological Sciences, 2018

The aim of this study is to evaluate the disinfection effect of anolyte water on some species of ... more The aim of this study is to evaluate the disinfection effect of anolyte water on some species of bacteria detected in sewage sludge, by using different concentrations of anolyte water and different incubation periods. The results showed that tested bacterial species showed different reduction in their numbers by increasing incubation periods. Also, the obtained results showed that anolyte water in concentration of 1 ml produced 100% inactivation for E. coli, Staphylococcus sp., Bacillus sp., and Enterococcus sp. after 30min exposure time. While, 2ml anolyte water produced complete inactivation for E. coli, Staphylococcus sp., Bacillus sp. and Enterococcus sp. after 20 min exposure time. In conclusion anolyte water can be used safely for inactivation of some pathogens found in sewage sludge.

International Journal of Development, Dec 25, 2016

The present work deals with the macroscopic and microscopic anatomy of Octopus vulgaris from Alex... more The present work deals with the macroscopic and microscopic anatomy of Octopus vulgaris from Alexandria water on the Mediterranean sea. The digestive system is formed of the buccal mass, oesophagus, crop, stomach, caecum, intestine and rectum. The associated glands included the anterior and posterior salivary glands, liver and digestive duct appendages (Pancreas). In the present study, the structure of the buccal mass, with the upper and lower jaws has been described. Also the radular teeth, which are specific for their morphology and considered of taxonomic evidence for different octopod species, have been described. The oesophagus enters the crop on its right side approximately one third of the way from its anterior end. Musculature and lining epithelium of the two regions have been studied. The stomach is a region where the grinding of food occurs so that its lining epithelium is covered by thick layer of cuticle. The caecum is a coiled organ which lies below the stomach and has primary and secondary leaflet-like structures. Secretory cells are found between the columnar cells which form the lining epithelium. The intestine is a long tube, which is followed by short rectum, and has internal folds with scattered mucous cells between the columnar epithelial cells. The rectum has no mucous cells and its lining epithelium is covered with a thin layer of cuticle. The anterior salivary glands are smaller in size than the posterior ones and have two types of secretory cells like the posterior salivary glands. The digestive gland is a large grayish cigar-shaped organ, consisting of two fused lobes. It has two types of cells, big vaculated cells and small triangular ones. The pancreas lies around the two digestive ducts and forms a small wedge-shaped appendages, each is formed of a single layer of short columnar cells.

Egyptian Journal of Aquatic Biology and Fisheries, 1997

Egyptian Journal of Aquatic Biology and Fisheries, 1999

Egyptian journal of aquatic biology and fisheries, 1999

Egyptian Journal of Aquatic Biology and Fisheries, 1997

African Journal of Biological Sciences

The Red Sea is characterized by its high temperature, pH and salinity in summary which affect gre... more The Red Sea is characterized by its high temperature, pH and salinity in summary which affect greatly the eggs development and early hatched embryos of cephalopods. Therefore, the present work aims to study the structure of eyes and optic lobes of the hatchlings of the cuttlefish Sepia savignyi to know how these structures can help these juveniles to live in their habitats in the Red Sea. Also, the structures of these organs were compared with that in other hatchlings of cephalopods in other ecological niches. The results indicated that the anatomical structure of eyes and the optic lobes is related to their functions and the different needs of the lifestyle of hatchling of this cuttlefish in its environment in the Red Sea for swimming, sensation and foraging in its habitats.

Indian Journal of Marine Sciences, 1994

82-85Limpets from the Gulf of Oman and Arabian Gulf, collected during 1992, were studied for grow... more 82-85Limpets from the Gulf of Oman and Arabian Gulf, collected during 1992, were studied for growth and age estimation and to examine the intraspecific variations in shell allometery. The longevity of Cellana karachiensis was 6 y. The growth increments were higher for smaller limpets than older ones. Specimens from the Gulf of Oman with 19-40 mm length have relatively higher total wet weight and shell weight and lower relative coefficient of condition (Kn) than those from the Arabian Gulf. The ratio of the posterior to anterior shell sloping walls was 1.288 and 1.298 for the populations from the Gulf of Oman and the Arabian Gulf, respectively. The regression constant (b) of various relationships of shell length to shell breadth, shell height, and shell sloping walls, were relatively similar for both populations, but with a varying regression constant (A)

African Journal of Biological Sciences, 2018

International Journal of Development, 2021

Ras Shukeir area is one of the most important regions for petroleum activities in Egypt. It is so... more Ras Shukeir area is one of the most important regions for petroleum activities in Egypt. It is south east Ras Gharib (30 km) and north to Hurghada (150 km). Its coastal area lies on the Suez Gulf from the east, while its western area is desert land. There are shortage of knowledge on the Hydrogeological conditions and characterless of the groundwater occurrences in Ras Shoukeir which are necessary for establishing new petroleum facilities there and to forecasting flash flood. Therefore this review is an attempt to collect the most available data to help decision makers for their future social and economic developmental projects in this area. Climate of Ras Shukeir is a hot arid with dry and hot summer, whereas few sprinkles may occur in spring. The average annual temperature is 22.2°C, while the average precipitation is 5 mm. The foremost north-westerly winds are dominated. No surface water supply is present at this region except that from wadis during rainfall which is very low. The freshwater supply is based mainly on the groundwater aquifer and desalination of sea water, where there are small salt marshes. The main characteristics of the groundwater known to exist in this area were discussed. Two main and distinctive types of groundwater according to its origin are found; the first is of purely meteoric origin and the other being formed during the different geological times (formation water). The latter is being highly saline and occurred on deep wells and mixed with minerals and sulphites. Water is good in winter after the rainfall in the ranges and unpleasantly salty in the summer or during rainless period. For normal drinking purposes, fresh water of salinity up to 1000 ppm can be used. Saline water, of salinity ranging from 1000 to 3000 ppm is used for limited irrigation in a sandy soil. The courses of the hydrographic basins are filled with the Quaternary alluvial deposits which are formed of sand, gravel and boulder. Water depth in wells ranges between 0.5 and 3.2 m and the discharge ranges between 2 and 5 m 3 /day. Most deep hand-dug wells were established between 15 and 25 m in sand before reaching the water table, which is very close to or within the bed rock and obtaining a regular supply of between 10 and 50 m 3 per day.

Indian Journal of Marine Sciences, 1994

African Journal of Biological Sciences, 2018

The aim of this study is to evaluate the disinfection effect of anolyte water on some species of ... more The aim of this study is to evaluate the disinfection effect of anolyte water on some species of bacteria detected in sewage sludge, by using different concentrations of anolyte water and different incubation periods. The results showed that tested bacterial species showed different reduction in their numbers by increasing incubation periods. Also, the obtained results showed that anolyte water in concentration of 1 ml produced 100% inactivation for E. coli, Staphylococcus sp., Bacillus sp., and Enterococcus sp. after 30min exposure time. While, 2ml anolyte water produced complete inactivation for E. coli, Staphylococcus sp., Bacillus sp. and Enterococcus sp. after 20 min exposure time. In conclusion anolyte water can be used safely for inactivation of some pathogens found in sewage sludge.

ARTICLE INFO ABSTRACT Article History: Received: Dec.15, 2012 Accepted: Jan18, 2013 Available onl... more ARTICLE INFO ABSTRACT Article History: Received: Dec.15, 2012 Accepted: Jan18, 2013 Available online: July 2013 _________________

In the present work the optical glands of the reef squid Lessoniana lessoniana were are found in ... more In the present work the optical glands of the reef squid Lessoniana lessoniana were are found in young and adult individuals. They are paired small elongated organs that lie at the aboral end of the olfactory lobe, on a level with the optic tract. Histological, the cells of the optical gland are large, with about 60 um in diameter and have spherical nuclei (20 um in diameter). Their cytoplasm is coarsely granulated. Neurosecretory granules were seen in cells of optical glands and stained with paraldehyde fuchsin. No distinct neuropil was observed in these glands and these glands are rich in blood supply. The optic glands were found to be connected with optic nerve fibres to the dorso-lateral lobes of the brain. The function of the optical glands of Sepioteuthis lessoniana was also discussed in this study. [Waheed M. Emam and Tarek G.Ali. A study on the optic glands of Sepioteuthis lessoniana from the Red Sea. Life Sci J 2014;11(4):327-331]. (ISSN:1097-8135). http://www.lifesciencesi...

International Journal of Development, Dec 25, 2016

The present work deals with the macroscopic and microscopic anatomy of Octopus vulgaris from Alex... more The present work deals with the macroscopic and microscopic anatomy of Octopus vulgaris from Alexandria water on the Mediterranean sea. The digestive system is formed of the buccal mass, oesophagus, crop, stomach, caecum, intestine and rectum. The associated glands included the anterior and posterior salivary glands, liver and digestive duct appendages (Pancreas). In the present study, the structure of the buccal mass, with the upper and lower jaws has been described. Also the radular teeth, which are specific for their morphology and considered of taxonomic evidence for different octopod species, have been described. The oesophagus enters the crop on its right side approximately one third of the way from its anterior end. Musculature and lining epithelium of the two regions have been studied. The stomach is a region where the grinding of food occurs so that its lining epithelium is covered by thick layer of cuticle. The caecum is a coiled organ which lies below the stomach and has primary and secondary leaflet-like structures. Secretory cells are found between the columnar cells which form the lining epithelium. The intestine is a long tube, which is followed by short rectum, and has internal folds with scattered mucous cells between the columnar epithelial cells. The rectum has no mucous cells and its lining epithelium is covered with a thin layer of cuticle. The anterior salivary glands are smaller in size than the posterior ones and have two types of secretory cells like the posterior salivary glands. The digestive gland is a large grayish cigar-shaped organ, consisting of two fused lobes. It has two types of cells, big vaculated cells and small triangular ones. The pancreas lies around the two digestive ducts and forms a small wedge-shaped appendages, each is formed of a single layer of short columnar cells.

Egyptian Journal of Aquatic Biology and Fisheries, 1997

ARTICLE INFO ABSTRACT Article History Received: Feb. 5, 2014 Accepted: April 30, 2014 Available o... more ARTICLE INFO ABSTRACT Article History Received: Feb. 5, 2014 Accepted: April 30, 2014 Available online: Dec. 2014 _________________