Mesoporous silica molecular sieves are a kind of unique catalyst support due to their large pore size and high surface area. Several methods have been developed to immobilize heteropolyacids (HPAs) inside the channels of these mesoporous silicas. The mesoporous silica-supported HPA materials have been widely used as recyclable catalysts in heterogeneous systems. They have shown high catalytic a...

The blood brain barrier (BBB) has evolved unique characteristics such as dense coverage of the endothelial cells by pericytes and interactions with astrocytes through perivascular endfeet. We study BBB formation in a 3-dimensional multicellular spheroid system of human primary brain endothelial cells (hpBECs), primary pericytes (hpPs) and primary astrocytes (hpAs). We show for the first time th...

BACKGROUND AND OBJECTIVE Hypothalamic-pituitary-adrenal axis suppression (HPAS) when treating children with corticosteroids is thought to be rare. Our objective was to determine the prevalence of and predictive factors for various degrees of HPAS. METHODS Clinical features of HPAS, doses, adherence, asthma score, and lung functions were recorded in 143 asthmatic children. The overnight metyra...

Aging coincides with a decline in lower limb muscle strength (LLMS). Preserving LLMS may be considered a very important determinant of functional independence in the elderly. To maintain LLMS the question arises whether habitual physical activitys (HPAs) can prevent a decline in LLMS. This review aims to determine the relationship between HPAs throughout life and LLMS above age 50. Using releva...

OBJECTIVES To determine the frequency of alloimmunization against human platelet antigens (HPAs) and human leucocyte antigen class 1 (HLA1) in multiparous women and multi-transfused patients.   METHODS This prospective study was conducted between January and August 2013, on 50 multiparous women with no history of previous blood transfusion recruited from the Obstetrics and Gynecology Clinic, ...

OF THE DISSERTATION Performance Analysis and Enhancement of OFDM-based WLAN Systems in the Presence of Nonlinear HPAs and Narrowband Interference for Single and Multiple Transmit Antennas by David Wei-Ting Chi Doctor of Philosophy in Electrical Engineering (Communication Theory and Systems) University of California San Diego, 2008 Professor Pankaj Das, Chair Professor Rene L. Cruz, Co-Chair Thi...

Hierarchical probabilistic automata (HPA) are probabilistic automata whose states are partitioned into levels such that for any state and input symbol, at most one transition with non-zero probability goes to a state at the same level, and all others go to states at a higher level. We present expressiveness and decidability results for 1-level HPAs that work on both finite and infinite length i...