The role of sphingolipids (SLs) in the immune system has come under increasing scrutiny recently due to the emerging contributions that these important membrane components play in regulating a variety of immunological processes. The acyl chain length of SLs appears particularly critical in determining SL function. Here, we show a role for very-long acyl chain SLs (VLC-SLs) in invariant natural ...

Bulent Berker, MD, Salih Taskin, MD, Elif Aylin Taskin, MD INTRODUCTION Approximately 30 years after its introduction, the use of laparoscopy in gynecology has expanded from diagnosis and tubal sterilization to more sophisticated operations and is even being used for the management of malignancies. Despite rapidly improving technical equipment and surgical skill, complication rates and preventa...

Sodium lauryl sulfate (SLS), a synthetic detergent commonly used in dentifrices, is an effective denaturant. The aim of the present study was to investigate the effect of SLS in patients with recurrent aphthous ulcers (RAU). Ten patients with multiple minor RAU participated in the study. The mean incidence of RAU was 17.8 during a 3-month period before the study. The patients used a dentifrice ...

white dots in the ocular fundus which appear after several years of age,3 and their occurrence strongly suggests SLS.4 Macrocephaly is not a characteristic or common finding in SLS. Mutation analysis of the ALDH3A2 gene is a highly sensitive method of confirming the diagnosis of SLS.4 More than 90 pathogenic variants of ALDH3A2 have been identified to date.1 The diagnosis of SLS can be confirme...

The observer design problem for Switched Linear Systems (SLS) subject to an unknown switching signal is addressed in this work. Based on known observability results for SLS, an appropriate SLS observer is proposed and its convergence is analysed showing that the corresponding estimates converge in finite-time to the SLS state. More precisely, the observers of the continuous state evolution and ...

Stochastic Local Searches (SLS) are a class of meta-heuristics for solving hard combinatorial optimization problems. Common examples of such problems are satisfiability (SAT), travelling salesman problem (TSP), job shop problem (JSP) and vehicle routing problem (VRP). The set of all possible solutions to one of these problems is called the search space. Each point (solution) in the search space...

The intrinsic dissolution rate and solubility of carbamazepine was measured in aqueous solutions of sodium lauryl sulfate (SLS) prepared with two different grades of purity, 95 and 99%, and 95% SLS in 0.15 M NaCl to determine the effect of surface-active impurities and electrolytes. Four significant observations resulted from this work: (1) the equilibrium coefficients calculated from the solub...

ABSTARCT : The objective of the study is to evaluate the individual main effects and combined (or interaction) effects of Hydroxy propyl β cyclodextrin (HPβCD), poly vinyl pyrrolidone (PVP K30) and sodium lauryl sulphate (SLS) on the solubility and dissolution rate of efavirenz in a series of 2 factorial experiments. The solubility of efavirenz in eight selected fluids containing HPβCD, PVP K30...

Selective Laser Sintering (SLS) and Selective Laser Melting (SLM) are parent layer manufacturing processes that allow generating complex 3D parts by consolidating layers of powder material on top of each other. Consolidation is obtained by processing the selected areas using the thermal energy supplied by a focused laser beam. In SLS partial fusion of powder particles takes place, followed by a...

The performance of a structured light system (SLS) highly depends on its calibration especially in applications such as surface met-rology and product quality control where high accuracy is required. Motivated by building a real-time highly accurate flatness measurement system, we propose a plane-based residual error compensation algorithm for improving the calibration accuracy of SLSs. Followi...