AbstractYemen located on the southwest corner of the Arabian Peninsula. It is known that Yemen is important to world energy markets because of its oil and natural gas resources as well as its strategic location at the...AbstractYemen located on the southwest corner of the Arabian Peninsula. It is known that Yemen is important to world energy markets because of its oil and natural gas resources as well as its strategic location at the Bab el-Mandab strait linking the Red Sea and the Gulf of Aden. Due to the Ministry of Oil and Mineral Resources (MOMR, 1998E) the Yemeni Oil Production was estimated to be 385 000 barrels per day (bbl/d), Oil Consumption was 69 000 bbl/d and Net Oil Exports was 316 000 barrels per day (bbl/d). On 1999 the Yemeni Proven Oil Reserves was estimated to be 4 billion barrels and the Natural Gas Reserves was estimated to be 16.9 trillion cubic feet (Tcf) (Ministry of Oil and Mineral Resources, 1999). At this time, many researchers, scientific expeditions and foreign companies are interested in Yemen. This paper discussed the petroleum overview of the Republic of Yemen. In my opinion, Yemen is not just going to attract all with its oil and gas discoveries in the near future, but also with its new geological data and information.展开更多
Climate change is one of the most important issues of today’s World. Climate scientists have concluded that the earth’s surface air temperature warmed by 0.6 ± 0.2℃ during the 20th century, accompanied by chan...Climate change is one of the most important issues of today’s World. Climate scientists have concluded that the earth’s surface air temperature warmed by 0.6 ± 0.2℃ during the 20th century, accompanied by changes in the hydrologic cycle. Of all the climate elements, temperature plays a major role in detecting climate change brought about by urbanization and industrialization. This study focuses on the variability and trends of the mean annual, seasonal and monthly surface air temperature in Taiz city, Republic of Yemen, during the period 1979-2006. The results of the analysis of the whole period reveal a statistically significant increasing trend in practically all the months and seasons. A tendency has also been observed towards warmer years, with significantly warmer summer and spring periods and slightly warmer autumn and winter, an increase of 1.79℃ and 1.18℃ has been observed in the mean summer and mean winter temperature, respectively. Positive trends of about 1.5℃ in the annual mean temperature were found for the whole period. The air temperature time series are analyzed, so that the variability and trends can be described.展开更多
A field work has been carried out to identify the occurrence of oil and oil products pollution in mangrove sediment from Red Sea of Yemen. The concentration of total petroleum hydrocarbons is from 700ng/g at Kamaran I...A field work has been carried out to identify the occurrence of oil and oil products pollution in mangrove sediment from Red Sea of Yemen. The concentration of total petroleum hydrocarbons is from 700ng/g at Kamaran Island station to 400 ng/g at Al-Hodiedah station, and the total organic carbon (TOC) in samples ranges from 0.07% at Dhubab station to 0.03% at Kamaran Island station. This pollution is as a result of localized oil pollution and/or heavy ship traffic in the Red Sea and Gulf of Aden.展开更多
Background and Aims: Patients on hemodialysis (HD) are at high risk of viral hepatitis due to high number of blood transfusion sessions, prolonged vascular access, high exposure to infected patients and contaminated e...Background and Aims: Patients on hemodialysis (HD) are at high risk of viral hepatitis due to high number of blood transfusion sessions, prolonged vascular access, high exposure to infected patients and contaminated equipment, or cross contamination from the dialysis circuits and pose problems in the management of patients in the renal dialysis units. This study was done to determine the prevalence of Hepatitis B virus (HBV) & Hepatitis C virus (HCV), in patients on hemodialysis in Zabeed City, Yemen Republic, and address the major risk factors for transmission of these viruses among HD patients. Materials and Methods: In this cross-sectional study, during June, 2013 to October, 2014, a total of 243 chronic hemodialysis patients were tested. Patients were selected from many regions by cluster sampling from Zabeed public hospital, (hemodialysis center) in Zabeed City, Yemen Republic. A close ended and multiple choice-based questionnaires were completed and HBsAg and anti-HCV antibodies were assessed using third generation enzyme linked immunoassay kit as serological testing and data were analyzed using the SPSS-20 software. Results: The overall prevalence of positive HBsAg was (48.83%) while positive anti-HCV was (46.01%) and (5.16%) mixed infection with HBV and HCV. Analysis of risk factors in patients with HBV & HCV infection is showed the history of blood transfusion and duration of hemodialysis was found to be a statistically significant (P < 0.05) as risk factor for HBV and HCV infection. Conclusion: The evaluation suggests that blood transfusion and duration of hemodialysis may be the main most important risk factor for HBV and HCV infection among hemodialysis patients.展开更多
The Tertiary granitic intrusive body(～21 Ma) of the Jabal Sabir area was emplaced during the early stages of the Red Sea opening.This intrusive body occupies the southern sector of Taiz City.It is triangular in shape...The Tertiary granitic intrusive body(～21 Ma) of the Jabal Sabir area was emplaced during the early stages of the Red Sea opening.This intrusive body occupies the southern sector of Taiz City.It is triangular in shape,affected by two major faults,one of which is in parallel to the Gulf of Aden,and the other is in parallel to the eastern margin of the Red Sea coast.The petrogenesis of such a type of intrusion provides additional information on the origin of the Oligo-Miocene magmatic activity in relation to the rifting tectonics and evolution of this part of the Arabian Shield.The granitic body of Jabal Sabir belongs to the alkaline or peralkaline suite of A-type granites.It is enriched in the REE.The tight bundle plot of its REE pattern reflects neither tectonism nor metamorphism.This granite body is characterized by high alkali(8.7%-10.13%),high-field strength elements(HFSE),but low Sr and Ba and high Zn contents.The abundance of xenoliths from the neighboring country rocks and prophyritic texture of the Jabal Sabir granite body indicate shallow depths of intrusion.The major and trace elements data revealed a fractional crystallization origin,probably with small amounts of crustal contamination.It is interpreted that the Jabal Sabir intrusion represents an anorogenic granite pertaining to the A-type,formed in a within-plate environment under an extensional tectonic setting pertaining to rift-related granites.展开更多
This coming September will mark the 90th birthday of Academician Wanzhen LU,one of the best scientists in the field of analytical chemistry and petroleum chemistry both in China and around the world.Academician LU was...This coming September will mark the 90th birthday of Academician Wanzhen LU,one of the best scientists in the field of analytical chemistry and petroleum chemistry both in China and around the world.Academician LU was born in Tianjin,Peoples’Republic of China on September 29,1924.Her father is a famous展开更多
The rivalry between Iran and Israel has intensified over the past decades.Iran has continuously expanded its involvement across the region,which has led to a‘balance of terror’between the two countries.Various incid...The rivalry between Iran and Israel has intensified over the past decades.Iran has continuously expanded its involvement across the region,which has led to a‘balance of terror’between the two countries.Various incidents of confrontation have occurred between the two countries in the Red Sea and East of Africa since 2010s.The Iranian regime,has been expanding its strategic depth into various regions,including Africa.Different Iranian administra-tions have adopted distinct policies in their term,that are influ-enced by various factors.The relations between Iran and East African countries have been transactional and facilitated by Iran’s effort to provide various forms of financial and military assistance in exchange for friendly diplomatic relations and ability to influ-ence African leaders’attitude towards the West and its allies,par-ticularly Israel.This paper reviews the history of involvement of the two countries in these regions,and analyses how policies of con-frontation in both countries have changed and developed over the different historical periods.The paper will have a particular focus on post-2005,because there is compelling evidence indicating a substantial expansion of Iran’s engagement in these regions.展开更多
文摘AbstractYemen located on the southwest corner of the Arabian Peninsula. It is known that Yemen is important to world energy markets because of its oil and natural gas resources as well as its strategic location at the Bab el-Mandab strait linking the Red Sea and the Gulf of Aden. Due to the Ministry of Oil and Mineral Resources (MOMR, 1998E) the Yemeni Oil Production was estimated to be 385 000 barrels per day (bbl/d), Oil Consumption was 69 000 bbl/d and Net Oil Exports was 316 000 barrels per day (bbl/d). On 1999 the Yemeni Proven Oil Reserves was estimated to be 4 billion barrels and the Natural Gas Reserves was estimated to be 16.9 trillion cubic feet (Tcf) (Ministry of Oil and Mineral Resources, 1999). At this time, many researchers, scientific expeditions and foreign companies are interested in Yemen. This paper discussed the petroleum overview of the Republic of Yemen. In my opinion, Yemen is not just going to attract all with its oil and gas discoveries in the near future, but also with its new geological data and information.
文摘Climate change is one of the most important issues of today’s World. Climate scientists have concluded that the earth’s surface air temperature warmed by 0.6 ± 0.2℃ during the 20th century, accompanied by changes in the hydrologic cycle. Of all the climate elements, temperature plays a major role in detecting climate change brought about by urbanization and industrialization. This study focuses on the variability and trends of the mean annual, seasonal and monthly surface air temperature in Taiz city, Republic of Yemen, during the period 1979-2006. The results of the analysis of the whole period reveal a statistically significant increasing trend in practically all the months and seasons. A tendency has also been observed towards warmer years, with significantly warmer summer and spring periods and slightly warmer autumn and winter, an increase of 1.79℃ and 1.18℃ has been observed in the mean summer and mean winter temperature, respectively. Positive trends of about 1.5℃ in the annual mean temperature were found for the whole period. The air temperature time series are analyzed, so that the variability and trends can be described.
文摘A field work has been carried out to identify the occurrence of oil and oil products pollution in mangrove sediment from Red Sea of Yemen. The concentration of total petroleum hydrocarbons is from 700ng/g at Kamaran Island station to 400 ng/g at Al-Hodiedah station, and the total organic carbon (TOC) in samples ranges from 0.07% at Dhubab station to 0.03% at Kamaran Island station. This pollution is as a result of localized oil pollution and/or heavy ship traffic in the Red Sea and Gulf of Aden.
文摘Background and Aims: Patients on hemodialysis (HD) are at high risk of viral hepatitis due to high number of blood transfusion sessions, prolonged vascular access, high exposure to infected patients and contaminated equipment, or cross contamination from the dialysis circuits and pose problems in the management of patients in the renal dialysis units. This study was done to determine the prevalence of Hepatitis B virus (HBV) & Hepatitis C virus (HCV), in patients on hemodialysis in Zabeed City, Yemen Republic, and address the major risk factors for transmission of these viruses among HD patients. Materials and Methods: In this cross-sectional study, during June, 2013 to October, 2014, a total of 243 chronic hemodialysis patients were tested. Patients were selected from many regions by cluster sampling from Zabeed public hospital, (hemodialysis center) in Zabeed City, Yemen Republic. A close ended and multiple choice-based questionnaires were completed and HBsAg and anti-HCV antibodies were assessed using third generation enzyme linked immunoassay kit as serological testing and data were analyzed using the SPSS-20 software. Results: The overall prevalence of positive HBsAg was (48.83%) while positive anti-HCV was (46.01%) and (5.16%) mixed infection with HBV and HCV. Analysis of risk factors in patients with HBV & HCV infection is showed the history of blood transfusion and duration of hemodialysis was found to be a statistically significant (P < 0.05) as risk factor for HBV and HCV infection. Conclusion: The evaluation suggests that blood transfusion and duration of hemodialysis may be the main most important risk factor for HBV and HCV infection among hemodialysis patients.
文摘The Tertiary granitic intrusive body(～21 Ma) of the Jabal Sabir area was emplaced during the early stages of the Red Sea opening.This intrusive body occupies the southern sector of Taiz City.It is triangular in shape,affected by two major faults,one of which is in parallel to the Gulf of Aden,and the other is in parallel to the eastern margin of the Red Sea coast.The petrogenesis of such a type of intrusion provides additional information on the origin of the Oligo-Miocene magmatic activity in relation to the rifting tectonics and evolution of this part of the Arabian Shield.The granitic body of Jabal Sabir belongs to the alkaline or peralkaline suite of A-type granites.It is enriched in the REE.The tight bundle plot of its REE pattern reflects neither tectonism nor metamorphism.This granite body is characterized by high alkali(8.7%-10.13%),high-field strength elements(HFSE),but low Sr and Ba and high Zn contents.The abundance of xenoliths from the neighboring country rocks and prophyritic texture of the Jabal Sabir granite body indicate shallow depths of intrusion.The major and trace elements data revealed a fractional crystallization origin,probably with small amounts of crustal contamination.It is interpreted that the Jabal Sabir intrusion represents an anorogenic granite pertaining to the A-type,formed in a within-plate environment under an extensional tectonic setting pertaining to rift-related granites.
文摘This coming September will mark the 90th birthday of Academician Wanzhen LU,one of the best scientists in the field of analytical chemistry and petroleum chemistry both in China and around the world.Academician LU was born in Tianjin,Peoples’Republic of China on September 29,1924.Her father is a famous
基金supported by the German Research Foundation(DFG,463159331)H2020 Marie Sklodowska‐Curie Actions,Grant/Award Number:101025388.
文摘The rivalry between Iran and Israel has intensified over the past decades.Iran has continuously expanded its involvement across the region,which has led to a‘balance of terror’between the two countries.Various incidents of confrontation have occurred between the two countries in the Red Sea and East of Africa since 2010s.The Iranian regime,has been expanding its strategic depth into various regions,including Africa.Different Iranian administra-tions have adopted distinct policies in their term,that are influ-enced by various factors.The relations between Iran and East African countries have been transactional and facilitated by Iran’s effort to provide various forms of financial and military assistance in exchange for friendly diplomatic relations and ability to influ-ence African leaders’attitude towards the West and its allies,par-ticularly Israel.This paper reviews the history of involvement of the two countries in these regions,and analyses how policies of con-frontation in both countries have changed and developed over the different historical periods.The paper will have a particular focus on post-2005,because there is compelling evidence indicating a substantial expansion of Iran’s engagement in these regions.
