Spatial characteristics of phytoplankton blooms often reflect the horizontal transport properties of the oceanic turbulent flow in which they are embedded. Classically, bloom response to horizontal stirring is regarded in terms of generation of patchiness following large-scale bloom initiation. Here, using satellite observations from the North Pacific Subtropical Gyre and a simple ecosystem mod...

In this paper, a novel method for the determination of chloroform in drinking water has been described. It is based on liquid-phase microextraction (LPME) and gas chromatography-mass spectrometry (GC-MS). Extraction conditions such as solvent selection, organic solvent dropsize, stirring rate, content of NaCl and extraction time were found to have significant influence on extraction efficiency....

This paper describes a new approach for the determination of amitriptyline in wastewater by ionic liquid based immersed droplet microextraction (IL-IDME) prior to high-performance liquid chromatography with ultraviolet detection. 1-Hexyl-3-methylimidazolium hexafluorophosphate ([C6MIM][PF6]) was used as an ionic liquid. Various factors that affect extraction, such as volume of ionic liquid, sti...

This work deals with two problems arising in mathematical ecology. The first problem is concerned with diploid branching particle models and its behavior when rapid stirring is added to the interaction. The particle models involve two types of particles, male and female, and branching can only occur when both types of particles are present. We show that if the branching rate is sufficiently lar...

The model system consisted of bacteriophage MS-2, bentonite clay, and hypochlorous acid (HOC1). Factors that influenced association of the bacterial virus with bentonite were the titer of unadsorbed viruses, clay concentration, cation concentration, temperature, stirring rate, and the presence of soluble organics. Variation of the kinetic adsorption rate constant with stirring speed indicates t...

A sensitive quantitative method for the determination of matrine alkaloids in human urine was developed based on hollow fiber liquid-phase microextraction (HF-LPME) combined with HPLC. The influence of the different factors on the HF-LPME efficiency including the pH and ion strength of the donar solution, the pH of the acceptor solution, stirring rate and extraction time were examined. The best...

Investigations for the melt growth gallium-antimonide (GaSb) semiconductor crystals are underway at the US Air Force Research Laboratory at Hanscom Air Force Base by the vertical gradient freeze (VGF) method utilizing a submerged heater. Electromagnetic stirring can be induced in the gallium-antimonide melt just above the crystal growth interface by applying a weak radial electric current in th...

The objective of the present study is to formulate nanoparticles that contain 5Flurouracil, an anticancer drug and optimization for chemical properties, drug concentration, polymer concentration, cross-linking agent and stirring speed. Nanoparticles of 5-Flurouracil were formulated using chitosan polymer and pregelated Sodium alginate by Ionotropic pregelation method. Calcium chloride was also ...

Hidenori Yamada, DDS, PhD (1), Ayako Okada, DDS, PhD (1), Takatoshi Murata, DDS, PhD (1), Kimiyuki Uetani, DDS (2), Mami Kotoh, DDS, PhD (2), Naoyuki Nishitsuji, DDS (2), Yoshihide Yabuki, DDS (2), Yoichi Fukuzawa, DDS, PhD (2), Hirokazu Yoshino, DDS (2), Koshi Kubo, DDS (2), Mitsuhiro Abe, DDS, PhD (2), Takatoshi One, DDS, PhD (2), Hiroaki Nagai, DDS, PhD (2), Masataka Yajima, DDS (2), Yoshiak...