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Search Results: 1 - 10 of 914 matches for " Sheikh Raisuddin "
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Nordihydroguaiaretic Acid from Creosote Bush (Larrea tridentata) Mitigates 12-O-Tetradecanoylphorbol-13-Acetate-Induced Inflammatory and Oxidative Stress Responses of Tumor Promotion Cascade in Mouse Skin
Shakilur Rahman,Rizwan Ahmed Ansari,Hasibur Rehman,Suhel Parvez,Sheikh Raisuddin
Evidence-Based Complementary and Alternative Medicine , 2011, DOI: 10.1093/ecam/nep076
Abstract: Nordihydroguaiaretic acid (NDGA) is a phenolic antioxidant found in the leaves and twigs of the evergreen desert shrub, Larrea tridentata (Sesse and Moc. ex DC) Coville (creosote bush). It has a long history of traditional medicinal use by the Native Americans and Mexicans. The modulatory effects of topically applied NDGA was studied on acute inflammatory and oxidative stress responses in mouse skin induced by stage I tumor promoting agent, 12-O-tetradecanoylphorbol-13-acetate (TPA). Double TPA treatment adversely altered many of the marker responses of stage I skin tumor promotion cascade. Pretreatment of NDGA in TPA-treated mice mitigated cutaneous lipid peroxidation and inhibited production of hydrogen peroxide. NDGA treatment also restored reduced glutathione level and activities of antioxidant enzymes. Elevated activities of myeloperoxidase, xanthine oxidase and skin edema formation in TPA-treated mice were also lowered by NDGA indicating a restrained inflammatory response. Furthermore, results of histological study demonstrated inhibitory effect of NDGA on cellular inflammatory responses. This study provides a direct evidence of antioxidative and anti-inflammatory properties of NDGA against TPA-induced cutaneous inflammation and oxidative stress corroborating its chemopreventive potential against skin cancer.
Why Are Ethnic Minorities Under-Represented in US Research Studies?
PLOS Medicine , 2005,
AIDS : Prevention and Pharmacist's role
Sohail Akhter,Gulam Mustafa,Raisuddin Ali,Sanjar Alam
Pharmaceutical Reviews , 2008,
Abstract: HIV/AIDS currently affects about 31 million people worldwide. Many infected people do not receive proper care because of a lack of resources or education about current treatment options. Even where treatments are available, they are often not optimal because of poor adherence, adverse events or resistance. In developed countries, HIV/AIDS is quickly becoming a chronic disease requiring long term care. Disease management concepts are being adapted to this disease, but are not yet fully successful because of the lack of definitive guidelines and disjointed delivery of care. Also, alternative caregivers have not been actively recognized by traditional providers, resulting in even less continuity of care. A new community-based model for healthcare delivery for people with HIV/AIDS is required. A potential model uses the pharmacy, now termed a community care centre, as the focal point for care delivery. A new healthcare team, including a doctor/physician, pharmacist and nutritionist would coordinate treatment selection and delivery. The pharmacist would also act as a community resource for information on HIV/AIDS to help dispel myths and misinformation about the disease. They can be a provider of testing services and counseling, as well as preventative methods and information.
Position Control of a Four Link Hyper Redundant Robotic Manipulator
Syed Masrur Ahmmad,Raisuddin Khan,Md. Mozasser Rahman,Masum Billah
Asian Journal of Scientific Research , 2013,
Abstract: Hyper-Redundant robotic manipulators like Serial robots, Snake robots, Tentacle robots or Continuum robots have very large number of degrees of kinematics redundancy. Position control of such a robotic manipulator comprising of more than three links and articulated joints is a big challenge due to the involvement of large number of trigonometric terms in its inverse kinematics equations. In this paper, a simple algorithm for the inverse kinematics solution (IKS) of a four-link serial robotic manipulator has been proposed, which is then validated experimentally. The proposed method divides the robot into two two-link virtual sub-robot and solves the inverse kinematics analytically for joint variables of each sub-robot successively. A validation experiment was conducted on a 4-link prototype to check the validity of the proposed algorithm. The experimental results showed satisfactory results with good repeatability.
Effect of Hot Accumulative Roll Bonding Process on the Mechanical Properties of AA5083  [PDF]
Hassan Sheikh, Ebrahim Paimozd
Open Journal of Metal (OJMetal) , 2011, DOI: 10.4236/ojmetal.2011.11002
Abstract: In this work, accumulative roll bonding (ARB) process as a severe plastic deformation was applied on an AA5083 sheet up to 6 cycles at the temperature of 300℃ and at the strain rate of 50 s­‐1. The results of tensile tests show that the values of the yield stress and the ultimate tensile strength don't change considerably after 4 cycles. Also, transmission electron microscopy (TEM) micrograph confirmed that the microstructure has fine (sub) grains with the size of 200 nm - 400 nm.
Mixed Convective Flow of Micropolar Fluids past an Inclined Porous Flat Plate  [PDF]
Nadim Sheikh, Maruf Hasan
Open Journal of Fluid Dynamics (OJFD) , 2017, DOI: 10.4236/ojfd.2017.74042
Mixed convective flow of a viscous incompressible electrically conducting micropolar fluid along a semi-infinite inclined permeable flat plate with viscous dissipation has been analyzed numerically. With appropriate transformations the boundary layer equations are transformed into a set of nonlinear ordinary differential equations. The local similarity solutions of the transformed dimensionless equations for the flow, microrotation and the heat transfer characteristics are evaluated using Nachtsheim-Swigert shooting iteration technique (guessing the missing value) together with sixth order Runge-Kutta-Butcher integration scheme. Numerical results are presented in the form of non-dimensional velocity, microrotation and temperature profiles within the boundary layer for different parameters entering into the analysis. The effects of pertinent parameters on the local skin friction coefficient (viscous drag), plate couple stress and rate of heat transfer (Nusselt number) are also displayed graphically.
A Review on Mobile and Sensor Networks Innovations in Intelligent Transportation Systems  [PDF]
Emad Felemban, Adil A. Sheikh
Journal of Transportation Technologies (JTTs) , 2014, DOI: 10.4236/jtts.2014.43020

Rapid developments of mobile technologies, data acquisition and big data analytics, and their integration with critical application domains such as transportation systems have the potential to produce more efficient, real-time, intelligent and safe transportation infrastructure. To increase the quality of transportation services, wireless sensor networks, mobile phones, crowd sourcing, RFID and Bluetooth technologies are being used. We surveyed innovations that were transformed from ideas in research labs into commercial systems in practical use. In this paper, we present some innovative mobile technologies, services and platforms that are being used in modern transportation applications including traffic data acquisition, traffic management and control, route optimizations, infrastructure redesign, road safety and enhancing user experience.

Why Are Ethnic Minorities Under-Represented in US Research Studies?
Aziz Sheikh
PLOS Medicine , 2006, DOI: 10.1371/journal.pmed.0030049
Toxicological effects of leather dyes on total leukocyte count of fresh water teleost, Cirrhinus mrigala (Ham)
Sheikh Afaq
Biology and Medicine , 2009,
Abstract: The experiment were conducted on fresh water fish Cirrhinus mrigala (Ham.) in the Dept. of zoology Agra collegeAgra to check out the effect of two leather dyes Bismarck brown and Acid leather brown on Total leucocyte countwith three conc. From both the dyes as 0.6 mg/l, 0.7 mg/l and 0.7 mg/l for Bismarck brown and 8 mg/l, 9 mg/l and 10mg/l for Acid leather brown at different time intervals (24 hrs, 48 hrs, 96 hrs and 1 week), however the effect wasmore with Acid leather brown exposure than Bismarck brown. The increasing trend in TLC on exposure to Bismarckbrown and acid leather brown at different time intervals and at all three concentrations has been observed. The sublethalexposure of Bismarck brown and Acid leather brown results into significant increase in the TLC. Intoxication ofBismarck brown and acid leather brown induces leukocytosis in which TLC increases. Leukocytosis in some casesmay be due to protective reaction in which leukocyte protects the body when foreign substances (in present studyfungicide invade the body. The increase in number of leukocyte may also be found in leukemia. The aim of the studyis to aware the people to protect the fish fauna from leather dye effect. The study is to aware people to check thepollution related to leather industries.
Sheikh Amin
Malaysian Family Physician , 2007,
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