6957792 research outputs found
Sort by
Don't Forget to Take Your Vitamins! A Case of Gastric Bypass Gone Wrong
Abstract Gastric bypass, an increasingly common operation performed due to rises in obesity has greatly improved patient's quality of life along with health. This case report presents a 62 year old female three decades post Roux-En-Y gastric bypass who came in with shortness of breath. Knowing the malabsorptive nature of her weightloss surgery we suspected a nutritional deficiency and performed a full panel. Though we found multiple vitamin abnormalities, we were most concerned about her deficient thiamine levels. The complete workup led to a diagnosis of wet beriberi, a condition commonly seen in underdeveloped nations. With the rise in weight loss surgery, understanding and having a high clinical suspicion for such patients is necessary
Humanoid feet trajectory generation for the reduction of the dynamical effects
Abstract-In this paper we present a different strategy for generating the trajectory of the swinging leg for a walking humanoid robot which takes into account the effects due to acceleration and velocities of the joints onto the center of mass of the robot. The trajectory of the leg is chosen to be constituted by two forth order polynomials interlaced by a via-point which satisfies the optimality criterium. This approach is validated on a humanoid robot HRP-2
On existence of a solution for the system of generalized vector quasi-equilibrium problems with upper semicontinuous set-valued maps
We introduce a new model of the system of generalized vector quasi-equilibrium problems with upper semicontinuous set-valued maps and present several existence results of a solution for this system of generalized vector quasi-equilibrium problems and its special cases. The results in this paper extend and improve some results in the literature
INTERNATIONAL JOURNAL OF AGRICULTURE & BIOLOGY Rheometric Measurement of Dough Rheological Characteristics and Factors Affecting It
ABSTRACT Bread is one of the most important foods consumed all over the world. This review focuses on the use of rheometer for the measurement of dough rheological properties and factors affecting them. Rheological properties of dough are very important in bread baking quality. Knowledge of the rheological behavior of bread dough is very important to understand mechanical properties of the dough and control finished products. Small amplitude oscillatory shear (SAOS) measurements afford the measurement of dynamic rheological functions, without altering the internal network structure of materials tested and are far more reliable than steady shear measurement. Viscoelasticity of dough is related to many factors such as nature of flour, dough ingredient, temperature, water uptake, air incorporation and type of mixing. There are many models to predicate dough rheology. In this work some of these models such as power low, linear Maxwell model, Lethersich's model, Peleg's model and etc., were presented. The instruments such as farinograph, mixograph, Rheomixer, Extensigraph, Alveograph, Amylograph, Maturograph, Oven Rise Recorder, Fermentometer, Dynamic oscillatory, Concentric cylinders, Parallel plates, which are used for the measurement of dough rheological properties (due to viscoelastic behavior of dough) were also described
Pre-Market Trading and IPO Pricing Acknowledgements: We would like to thank Pre-Market Trading and IPO Pricing
Abstract By studying the only mandatory pre-IPO market in the world -Taiwan's Emerging Stock Market (ESM), we document that pre-market prices are very informative about post-market prices and that the pre-market price efficiency increases with trading liquidity of the stock. Pre-market prices are utilized in IPO pricing. The ESM price-earnings ratio shortly before the IPO explains about 90% of the variation in the offer price-earnings ratio. Moreover, the more informative the pre-market price is, the higher the offer price (i.e., the lower the underpricing). However, the average IPO underpricing level remains high despite the pre-market (with an average first-day return of 55%). Our evidence suggests that agency problems between underwriters and issuers can lead to high levels of underpricing even when there is little information asymmetry or valuation uncertainty about the stock. JEL codes: G14, G15, G18, G24, G3
Hydrophilic Modified clay Nanocomposites: Effect of clay on Thermal and Vibrational Properties
ABSTRACT Epoxy (LY-556/HY-951) system filled with modified clay (MC) was synthesized by using mechanical shear mixing with the addition of hardener as tri-ethylene-tetra-amine (TETA). The effect of the fumed silica can be negated by the application of a shear force (e.g. mixing, brushing, spraying etc), allowing the liquid to flow, level out and permit the escape of entrapped air. The reinforcement effects of MC in the epoxy polymer on thermal, mechanical and vibration properties were studied. Curing study shows that the addition MC does not show any effect in the curing behavior of epoxy polymer. Thermogravimetry analysis (TGA) shows enhanced thermal stability for epoxy with MC fillers. The epoxy with MC fillers shows considerable improvement on tensile and impact properties over pure epoxy polymer. SEM studies shows that addition of clay significantly turns the epoxy system from brittle to ductile nature was played instrumental in scaling performance. The improvement in tensile and impact properties of nanocomposites is supported with the fracture surface studies. Epoxy with MC fillers shows enhanced vibration characteristics than that of the pure epoxy polymer. FTIR studies indicated the formation of C-H bonds on the surface of the nanocomposites
On the Empirics of the Nonneutrality of Money: Cross-Country Evidence
Abstract The paper first challenges the traditional view that money is long-run neutral; it is shown that chronic monetary contractions were associated with significantly below-average output growth rates. The paper then examines the average per capita output growth performance across countries in the years with extremely high growth rates of money, in the years with declines in monetary aggregates, and in the years with declines in the price level in the 1970-1990 period. The mean output growth performance is significantly below the crosscountry long-run average in all these situations. There is some tendency of money changes to precede output changes and some tendency of broader monetary aggregates to be more strongly associated with real output than narrower monetary aggregates. JEL classification: E31, E32, N1
Weakness of Will, the Background, and Chinese Thought Weakness of Will, the Background, and Chinese Thought Weakness of Will, the Background, and Chinese Thought
Abstract This essay applies John Searle's account of weakness of will to explore the classical Chinese problem of weak-willed action. Searle's discussion focuses on the shortcomings of the Western classical model of rationality in explaining weakness of will, so he naturally says little about the practical ethical problem of overcoming weak-willed action, the focus of the relevant Chinese texts. Yet his theory of action, specifically his notion of the Background, suggests a compelling approach to the practical issue, one that converges with a plausible account of the classical Chinese conception of agency. On this approach, the practical problem is due to weaknesses of the self in carrying out intentions. The key to overcoming the problem lies not in restructuring the agent's affective states, as suggested by prominent interpreters of Chinese thought such as David Nivison, but in strengthening the agent's Background capacities, much as we do when mastering new skills