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Liver diseases in pregnancy: Liver transplantation in pregnancy

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World Journal of Gastroenterology 2013年第43期19卷 7647-7651页

作者： Ghassan m Hammoud Ashraf A Almashhrawi Khulood T Ahmed Rubayat rahman Jamal A Ibdah Division of Gastroenterology and Hepatology University of MissouriColumbiaMO 65212United States

Pregnancy in patients with advanced liver disease is uncommon as most women with decompensated cirrhosis are infertile and have high rate of ***,if gestation ensued;it is very challenging and carries high risks for both the mother and the baby such as higher rates of spontaneous abortion,prematurity,pulmonary hypertension,splenic artery aneurysm rupture,postpartum hemorrhage,and a potential for life-threatening variceal hemorrhage and hepatic *** contrary,with orthotopic liver transplantation,menstruation resumes and most women of childbearing age are able to conceive,give birth and lead a better quality of *** with orthotopic liver transplantation seeking pregnancy should be managed carefully by a team consultation with transplant hepatologist,maternal-fetal medicine specialist and other *** liver transplant recipients need to stay on immunosuppression medication to prevent allograft ***,these medications need to be monitored carefully and continued throughout pregnancy to avoid potential adverse effects to mother and *** delaying pregnancy 1 to 2 years after transplantation minimizes fetal exposure to high doses of *** female liver transplant patients have a high rate of cesarean delivery likely due to the high rate of prematurity in this *** reports suggest that with close monitoring and multidisciplinary team approach,most female liver transplant recipient of childbearing age will lead a successful pregnancy.

关键词： Liver Pregnancy Liver transplantation Hemolysis elevated liver low platelets Acute fatty liver Cirrhosis

Passive cooling techniques through reflective and radiative roofs in tropical houses in Southeast Asia:A literature review

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Frontiers of Architectural Research 2014年第3期3卷 283-297页

作者： Karam m.Al-Obaidi mazran Ismail Abdul malek Abdul rahman School of Housing Building and PlanningUniversiti Sains Malaysia

Cooling is one of the major concerns in building tropical *** problem is exacerbated by the heat gain of the roof,which constitutes 70%of the total heat *** passive cooling technique is one of the innovative practices and technologies that provide buildings with comfortable conditions through natural *** and radiative processes are the methods used to decrease heat gain by facilitating the elimination of excess heat in a building's interior to maintain a comfortable *** that the potential of these techniques vary from region to region,their application in the tropics should be *** these approaches in detail allows us to rethink how to effectively adapt these techniques to overcome the build-up of heat in modern tropical houses in Southeast *** study reviews the physical characteristics of these approaches to guide architects and building *** indicate a great reduction in operational ***,the significant differences in the performance of colour and material properties should be considered,given that the selected approach strongly affects the required thermal conditions of a building.

关键词： Passive cooling Reflective roof Radiative roof Southeast Asia Tropical houses

A study of the impact of environmental loads that penetrate a passive skylight roofing system in malaysian buildings

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Frontiers of Architectural Research 2014年第2期3卷 178-191页

作者： Karam m. Al-Obaidi mazran Ismail Abdul malek Abdul rahman School of Housing Building & Planning Universiti Sains Malaysia Penang 11800 Malaysia

A passive skylight system is a significant building design element that provides an ideal condition for interior spaces. However, the use of this system is limited to specific climatic regions because of its considerable effect on the indoor environment. malaysia is a tropical country that has favorable natural benefits, such as solar geometry and natural light, which can brighten building interiors throughout the year. However, harnessing this benefit affects spaces, especially those in single-story buildings, because of excessive natural loads. This study reviews a concept to understand the passive behavior of solar radiation in the form of light and heat that falls on, interacts with, and is emitted from a skylight system in a single-story building. The study method is theoretically based on descriptive analysis to assess design requirements. The review shows that designs grounded on the physical aspects of climate （influenced variables）, materials （design variables）, and human comfort （affected variables） in one process （ESI） can develop the architectural way of thinking rather than estimate the condition based on a limited perspective. This assumption indicates that the adoption of this concept in the preliminary design stage will enable designers to balance the building environment effectively.

关键词： Skylight system Tropics Solar radiation Light Heat malaysian builtenvironment

Liver diseases in pregnancy: Diseases unique to pregnancy

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World Journal of Gastroenterology 2013年第43期19卷 7639-7646页

作者： Khulood T Ahmed Ashraf A Almashhrawi Rubayat N rahman Ghassan m Hammoud Jamal A Ibdah Division of Gastroenterology and Hepatology University of Missouri-ColumbiaColumbiaMO 65212United States

Pregnancy is a special clinical state with several normal physiological changes that influence body organs including the *** disease can cause significant morbidity and mortality in both pregnant women and their *** review summarizes liver diseases that are unique to *** discuss clinical conditions that are seen only in pregnant women and involve the liver;from Hyperemesis Gravidarum that happens in 1out of 200 pregnancies and Intrahepatic Cholestasis of Pregnancy(0.5%-1.5%prevalence),to the more frequent condition of preeclampsia(10%prevalence)and its severe form;hemolysis,elevated liver enzymes,and a low platelet count syndrome(12%of pregnancies with preeclampsia),to the rare entity of Acute Fatty Liver of Pregnancy(incidence of 1 per 7270 to 13000deliveries).Although pathogeneses behind the development of these aliments are not fully understood,theories have been *** propose the special physiological changes that accompany pregnancy as a *** suggest a constellation of factors including both the mother and her fetus that come together to trigger those unique *** a timely and accurate diagnosis of such conditions can be *** timing of the condition in relation toward which trimester it starts at is a *** diagnosis can be made using specific clinical findings and blood *** entities have well-defined criteria that help not only in making the diagnosis,but also in classifying the disease according to its *** of these conditions range from simple medical remedies to measures such as immediate termination of the *** specific conditions,it is prudent to have expert obstetric and medical specialists teaming up to help improve the outcomes.

关键词： Liver Pregnancy Hyperemesis gravidarum Intrahepatic cholestasis Hemolysis,elevated liver enzymes,and a low platelet count Preeclampsia Eclampsia Acute fatty liver

Estimation of solids circulation rate and char transfer rate from gasifier to combustor in a dual fluidized-bed pilot plant for biomass steam gasification

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Particuology 2019年第5期17卷 22-29页

作者： m. Hafizur rahman Lius Daniel Ujash Shah Xiaotao Bi John R. Grace C.Jim Lim Fluidization Research Centre Department of Chemical & Biological Engineering University of British Columbia 2360 East Mall Vancouver British Columbia V6T1Z3 Canada

Operation of a dual fluidized bed, consisting of a riser as combustor and bubbling bed as gasifier, for synthesis gas production from a solid fuel requires determination of the solids circulation rate and char transfer rate. The performance relies on supplying sufficient heat from the combustor to the gasifier by circulation of solids between these two reactors. The flow rate of char is required to track the heat generated in the combustor, which supports endothermic reactions in the gasifier. Direct measurement of these two critical parameters is difficult, with the number of reported techniques capable of working at high temperatures extremely small. An indirect method was developed, using mass and energy balances over the entire system and individual reactors, to estimate the solids circulation rate and char transfer rate. There was general agreement between heat losses estimated from energy-balance calculations and from direct measurement of the outer reactor surface temperature. Under typical gasification conditions, the solids circulation fluxes were estimated to be 45.2 and 55.6 kg/(m^2 s) in two independent tests, which were in good agreement with values obtained using a thermal tracer;char transfer rates were calculated to be 1.2 and 0.6 kg/h, which were in reasonable agreement with average biomass feed rates. This method can be applied to dual gasification systems at any temperature or flow rate.

关键词： Solids circulation rate Char transfer rate Pilot-plant gasifier Dual fluidized bed mass and energy balance

Latency minimization for Internet of Things (IoT) in Device to Device (D2D) Communication with Intervention of Fog Computing

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Latency Minimization for Internet of Things (IoT) in Device ...

作者： G. m. Shafiqur rahman 北京邮电大学

学位级别：硕士

Over the past decade,due to immense advancement of powerful mobile devices and internet-connected things,there is a tremendous growing trend for proximity-based applications,such as peer-to-peer file sharing,local multicasting and *** addition,we are on the verge of a transition into a state of fully connected fifth generation wireless technology where high capacity is ***,with current infrastructure deployments and radio resources,telecommunication operators will not be able to adapt with this upcoming rigorous ***,to satisfy the flourishing demand of high-data-rate,device to device(D2D)communication has been considered as one of the key techniques for next generation's wireless communications.D2D communication is a hot issue for future wireless communication system in both academia and *** D2D communications,proximity users in a cellular network can communicate directly to each other without traversing base station(BS).Furthermore,due to promising features of D2D communications and rapid growth of internet-connected things the emerging Internet of Things(IoT)concepts have evolved and become very popular in contemporary D2D based communication *** promising applications of IoT are increasing at an unprecedented scale around the ***,the IoT generate harmful delay into the existing cellular network and become a bottleneck for entire communication ***,the latency minimization is one of the challenging and important issues for IoT in D2D *** this dissertation,we mainly focus on minimizing latency for IoT in D2D communications with the intervention of newly proposed fog computing *** the research of latency minimization for IoT in D2D communications,an advanced system architecture and mathematical model has been presented,where the objective is to minimize the overall latency and enhance the performance of next generation IoT *** framework includes three part

关键词： internet of things latency device to device fog computing cloud computing

Antiglycation,antioxidant and toxicological potential of polyphenol extracts of alligator pepper,ginger and nutmeg from Nigeria

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Asian Pacific Journal of Tropical Biomedicine 2012年第9期2卷 727-732页

作者： Kazeem mI Akanji mA Hafizur rahman m Choudhary mI Department of Biochemistry University of llorin Department of Biochemistry Lagos State University Dr.Panjwani Center for molecular medicine and Drug Research International Center for Chemical and Biological SciencesUniversity of Karachi

Objective:To evaluate the antioxidant and antiglycation potential of polyphenols from three spices;alligator pepper,ginger and ***:Polyphenol extracts of these spices were subjected to brine-shrimp lethality assay,phyloloxicily test,DPPH and superoxide anion radical scavenging as well as BSA-glucose antiglycation ***:Results obtained showed that polyphenol extract of ginger has the highest anlioxidant potential with IC_(50)0.075 and 0.070 mg/*** DPPH and superoxide anion radical scavenging assay while alligator pepper displayed highest antiglycation activity with IC_(50)0.125 mg/***,nutmeg extract exhibited weakest cytotoxic and phytotoxic potential with LD_(50)4359.70 and 1490μg/mL ***:It can be concluded that the polyphenol extracts of alligator pepper,ginger and nutmeg displayed good antioxidant as well as antiglycation potential and are,safe for consumption.

关键词： Glycation Hyperglycemia Polyphenols Spices Free radicals Antioxidants

Crustal structure beneath Tien Shan orogenic belt and its adjacent regions from multi-scale seismic data

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Science China Earth Sciences 2017年第10期60卷 1769-1782页

作者： N.Ghani KHAN BAI Ling ZHAO Junmeng LI GuoHui m.moklesur rahman CHENG Cheng YANG JianYa Key Laboratory of Continental Collision and Plateau Uplift Institute of Tibetan Plateau ResearchChinese Academy of Sciences Department of Earth Sciences COMSATS Institute of Information Technology (CIIT)

As one of the world's most active intracontinental mountain belts, Tien Shan has posed questions for researchers regarding the formation of different tectonic units and active shallow seismicity. Here, we used a huge data set comprising of 7094 earthquakes from local, regional and teleseismic seismic stations. We used waveform modeling and multi-scale double-difference earthquake relocation technique to better constrain the source parameters of the earthquakes. The new set of events provided us with better initial earthquake locations for further tomographic investigation. We found that reverse-faulting earthquakes dominate the whole study area while the fault plane solutions for earthquakes beneath the northwestern Tarim Basin and the main Pamir Thrust are diverse. There is a low-velocity anomaly beneath Bashkaingdy at depth of 80 km, and high-velocity anomalies beneath central Tien Shan at shallower depths. These observations are the keys to understand the mechanism of Tien Shan's formation because of Tarim Basin northward and Kazakh Shield's southward subduction in the south and north respectively. Velocities beneath western Tien Shan are relatively high. We thus infer that the Western Tien Shan is relatively less deformed than the eastern Tien Shan primarily due to a relatively brittle mantle.

关键词： Tien Shan Earthquake relocation Velocity anomalies Differential subduction

Validation of an Optimized Spectrophotometric method for the Selective Determination of Labetalol Hydrochloride

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Chinese Journal of Chemistry 2005年第12期23卷 1611-1617页

作者： rahman, Nafisur SINGH, manisha HODA, Nasrul md ZAIDI, S.m. Kashif R. BANU, Naheed Analytical Research Laboratory Department of Chemistry Aligarh Muslim University Aligarh-202 002 India Department of Biochemistry Faculty of Life Science Aligarh Muslim Universtty Aligarh-202002 India

A simple sensitive and economical method for the determination of labetalol hydrochloride has been proposed, based on the reaction of labetalol with sodium nitroprusside and hydroxylamine hydrochloride in sodium dihydrogen phosphate-sodium hydroxide buffer solution of pH 12. The green-blue color produced due to the formation of a nitroso derivative has been measured at 695 nm. The Beer＇s range was obeyed in the concentration range of 2-51 μg·mL^-1 with molar absorptivity of 0.48 × 10^4 L·mol^-1·cm^-1. Rigorous statistical analyses were performed for the validation of the method. A detailed investigation of the selectivity of the method has been done to find it to be highly selective for the determination of labetalol hydrochloride in the presence of its acidic degradation product and common excipients of formulations. The proposed method was successfully applied to the determination of labetalol hydrochloride in the laboratory prepared dosage forms. Comparison of the means of the proposed procedure with a reference method using point as well as interval hypotheses showed no statistically significant difference. The developed method was extended to investigate its applicability to biological samples.

关键词： labetalol hydrochloride sodium nitroprusside hydroxylamine hydrochloride biological sample