Simulation and Optimization of the Acid Gas Absorption Process by an Aqueous Diethanolamine Solution in a Natural Gas Sweetening Unit.

The presence of carbon dioxide in natural gases can lower the quality of natural gas and can cause CO freezing problems. Therefore, using reliable techniques for the reduction and elimination of carbon dioxide from natural gases is necessary. The aqueous diethanol amine (DEA) solution's ability to simultaneously absorb HS and CO from sour natural gases makes it possible to use this solution in the natural gas sweetening process.

Multiscale modelling of magnetostatic effects on magnetic nanoparticles with application to hyperthermia.

We extend a renormalization group-based (RG) coarse-graining method for micromagnetic simulations to include properly scaled magnetostatic interactions. We apply the method in simulations of dynamic hysteresis loops at clinically relevant sweep rates and at 310 K of iron oxide nanoparticles (NPs) of the kind that have been used in preclinical studies of magnetic hyperthermia. The coarse-graining method, along with a time scaling involving sweep rate and Gilbert damping parameter, allow us to span length scales from the unit cell to NPs approximately 50 nm in diameter with reasonable simulation times.

Breast cancer radioresistance may be overcome by osteopontin gene knocking out with CRISPR/Cas9 technique.

Purpose: Osteopontin (OPN) is a phosphoglycoprotein, with a wide range of physiological and pathological roles. High expression of OPN promotes aggressive behavior, causes poor prognosis in tumor cells, and reduces the survival of patients. Since overexpression of OPN gives rise to radioresistance, the effects of the gene knock out using the CRISPR/Cas9 system in combination with radiation are emphasized.

Coarse-graining in micromagnetic simulations of dynamic hysteresis loops.

We use micromagnetic simulations based on the stochastic Landau-Lifshitz-Gilbert equation to calculate dynamic magnetic hysteresis loops at finite temperature that are invariant with simulation cell size. As a test case, we simulate a magnetite nanorod, the building block of magnetic nanoparticles that have been employed in preclinical studies of hyperthermia. With the goal to effectively simulate loops for large iron-oxide-based systems at relatively slow sweep rates on the order of 1 Oe nsor less, we modify and employ a previously derived renormalization group approach for coarse-graining (Grinstein and Koch 2003207201).

Electromagnetic wave propagation in a fast pulse line ion accelerator.

Purpose: The pulse line ion accelerator (PLIA) is a low-cost accelerator concept originally designed to accelerate heavy ions. Our group has been investigating the use of PLIA to accelerate light ions and believe a multi-stage PLIA could be useful for short half-life PET isotope production. The goal of this work was to develop a single prototype fast PLIA structure and demonstrate electromagnetic wave propagation using a high-voltage pulser.

Design considerations for a pulse line ion accelerator (PLIA)-based PET isotope generator.

Purpose: Positron emission tomography (PET) imaging remains limited due to the cost associated with on-site production of short half-life, positron-emitting isotopes. In this work, we examine the use of a pulse line ion accelerator (PLIA) to accelerate protons for single-dose PET isotope production.

Methods: Time-domain electromagnetic field and particle-in-cell (PIC) simulations were performed for a 1.

The effect of biofeedback therapy on dyssynergic constipation in patients with or without Irritable Bowel Syndrome.

Background: The Rome II and III diagnostic criteria for dyssynergic defecation recommended the exclusion of irritable bowel syndrome (IBS). This study determined the effect of biofeedback therapy on dyssynergic constipation in patients with or without IBS.

Materials And Methods: This study was a nonrandomized, single blinded, semi experimental study.

Increasing prevalence and incidence rates of multiple sclerosis in Kuwait.

Background: Kuwait was considered as low to intermediate risk area for MS.

Objectives: To determine the prevalence and incidence rates of MS among Kuwaiti nationals based on 2011 population census.

Methods: This cross-sectional study was conducted between October 2010 and April 2013 using the newly developed national MS registry in Kuwait.

Assessment of pelvic floor muscle function in women with and without low back pain using transabdominal ultrasound.

Pelvic floor muscle (PFM) dysfunction has been recently associated with the development of low back pain (LBP). Transabdominal ultrasound imaging has been established as an appropriate method for visualizing and measuring PFM function. No study has directly evaluated PFM function in individuals with and without LBP.

Correlation of digital palpation and transabdominal ultrasound for assessment of pelvic floor muscle contraction.

Pelvic floor muscle (PFM) dysfunction has been commonly associated with urinary disorders and lumbo-pelvic pain. Transabdominal (TA) ultrasound is currently used by physical therapists to assess PFM function. Controversy exists regarding the correlation between TA ultrasound measurement and vaginal palpation for assessment of PFM contraction, and this relationship has not yet been examined concurrently during the same contraction.

[To a margin reduction in the dermatofibrosarcoma protuberans? Retrospective study of 34 cases].

Introduction: The dermatofibrosarcoma protuberans (DFSP) is a rare but not exceptional tumour. Surgical treatment should contain a wide excision to avoid local recurrence.

Material And Method: We report a retrospective study of 34 cases treated by the same team from 1994 to 1999.

Chlamydia pneumoniae and anti-infective therapy: their role in the pathogenesis and treatment of coronary artery disease.

Cardiovascular disease remains the most common cause of death in the United States; however, conventional cardiovascular risk factors fail to explain completely the pathogenesis of atherosclerosis and coronary artery disease. There has been recent interest in the association between Chlamydia pneumoniae and the risk of development or progression of atherosclerotic disease. This association has become evident through serologic, pathologic, and animal-based models and, more recently, through limited trials of antichlamydial antibiotics in humans.

Therapeutic approaches for AIDS-related toxoplasmosis.

Objective: To summarize current knowledge of prophylaxis and treatment of AIDS-related toxoplasmosis.

Data Sources: A MEDLINE search (1985-1994) was used to identify pertinent literature, including reviews.

Study Selection And Data Extraction: All articles were considered for possible inclusion in the review.