Search
Now showing items 121-130 of 378
Microbiota and the control of blood-tissue barriers
(
Taylor & Francis
, 2015 , Article)
The gastro-intestinal tract is an ecosystem containing trillions of commensal bacteria living in symbiosis with the host. These microbiota modulate a variety of our physiological processes, including production of vitamins, ...
E5 and E6/E7 of high-risk HPVs cooperate to enhance cancer progression through EMT initiation
(
Taylor & Francis
, 2015 , Article)
It is estimated that 10–20% of human carcinogenesis is linked to virus infection including papillomaviruses (HPVs). Moreover, since metastatic cancer disease is a major cause of morbidity and mortality in cancer patients, ...
Novel 1,5-diphenyl-6-substituted 1H-pyrazolo[3,4-d]pyrimidin-4(5H)-ones induced apoptosis in RKO colon cancer cells
(
Taylor & Francis
, 2015 , Article)
Novel 1,5-diphenyl-6-substituted-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-ones were synthesized and characterized. All compounds were screened for their anti-proliferative activities in five different cancer cell lines. The results ...
A high voltage pulse-generator based on DC-to-DC converters and capacitor-diode voltage multipliers for water treatment applications
(
Institute of Electrical and Electronics Engineers Inc.
, 2015 , Article)
Pulsed electric field (PEF) can be used effectively in water treatment applications by passing infected water through two electrodes excited from a high voltage pulsed power supply which guarantees killing the harmful ...
A switched PV approach for extracted maximum power enhancement of PV arrays during partial shading
(
Institute of Electrical and Electronics Engineers Inc.
, 2015 , Article)
This paper proposes a switched photovoltaic (PV) approach to enhance the extracted maximum power from a PV array during partial shading conditions. The proposed system is simple and cost effective. However, it may provide ...
Quasi two-level operation of modular multilevel converter for use in a high-power DC transformer with DC fault isolation capability
(
Institute of Electrical and Electronics Engineers Inc.
, 2015 , Article)
DC fault protection is one challenge impeding the development of multiterminal dc grids. The absence of manufacturing and operational standards has led to many point-to-point HVDC links built at different voltage levels, ...
Low space harmonics cancelation in double-layer fractional slot winding using dual multiphase winding
(
Institute of Electrical and Electronics Engineers Inc.
, 2015 , Article)
One of the main drawbacks of nonoverlapped coils in fractional slot concentrated winding permanent magnet (PM) machines are the high eddy current losses in both rotor core and permanent magnets induced by the asynchronous ...
Effect of stator winding connection of five-phase induction machines on torque ripples under open line condition
(
Institute of Electrical and Electronics Engineers Inc.
, 2015 , Article)
One of the main challenges in designing high-power drive systems is the quality of the developed torque. High-torque-ripple magnitudes result in serious vibration and acoustic noise problems that affect the lifetime of a ...
Childhood poisoning in Qatar: A call for action
(
Society of Hospital Pharmacists of Australia
, 2015 , Article)
[No abstract available]
Generic medicines policy in Qatar
(
Pro Pharma Communications International
, 2015 , Article)
Qatar's pharmaceutical market is likely to remain highly dependent on imports. The use of generic medicines remains a great challenge to the country.