Child Tracking System Using Arduino & GPS-GSM Kit

The cases of missing children are a major concern now a day.This paper tells us about the android application which has features of tracking the children,the exact location of child can be tracked by GPS service. GSM will be used for network services and it also provides internet. Arduino will also be used as a microcontroller that can sense and control objects in the child’s module.The paper is aimed to prevent child kidnapping and trafficking

Comparative Study of Microwave Induced and Conventional Synthesis of Acetylated Sugar Isothiocyanates and Related Thiocarbamides

Abstract: The synthesis of several acetylated sugar isothiocyanates have been carried out under microwave irradiation in excellent yields of products by using related bromides and lead thiocyanate in sodium dried xylene. Several acetylated sugar thiocarbamides have been synthesized by the interaction of respective acetylated sugar isothiocyanates with appropriate aryl amines under microwave irradiation

Effects of AMPK activation on insulin sensitivity and metabolism in leptin-deficient ob/ob mice

AMP-activated protein kinase (AMPK) is a heterotrimeric complex, composed of a catalytic subunit (α) and two regulatory subunits (β and γ), which act as a metabolic sensor to regulate glucose and lipid metabolism. A mutation in the γ3 subunit (AMPKγ3(R225Q)) increases basal AMPK phosphorylation, while concomitantly reducing sensitivity to AMP. AMPKγ3(R225Q) (γ3(R225Q)) transgenic mice are protected against dietary-induced triglyceride accumulation and insulin resistance. We determined whether skeletal muscle-specific expression of AMPKγ3(R225Q) prevents metabolic abnormalities in leptin-deficient ob/ob (ob/ob-γ3(R225Q)) mice. Glycogen content was increased, triglyceride content was decreased, and diacylglycerol and ceramide content were unaltered in gastrocnemius muscle from ob/ob-γ3(R225Q) mice, whereas glucose tolerance was unaltered. Insulin-stimulated glucose uptake in extensor digitorum longus muscle during the euglycemic-hyperinsulinemic clamp was increased in lean γ3(R225Q) mice, but not in ob/ob-γ3(R225Q) mice. Acetyl-CoA carboxylase phosphorylation was increased in gastrocnemius muscle from γ3(R225Q) mutant mice independent of adiposity. Glycogen and triglyceride content were decreased after leptin treatment (5 days) in ob/ob mice, but not in ob/ob-γ3(R225Q) mice. In conclusion, metabolic improvements arising from muscle-specific expression of AMPKγ3(R225Q) are insufficient to ameliorate insulin resistance and obesity in leptin-deficient mice. Central defects due to leptin deficiency may override any metabolic benefit conferred by peripheral overexpression of the AMPKγ3(R225Q) mutation

Moving Toward An Air Traffic Control Display Standard: Creating A Standardized Target Symbology for Terminal Situation Displays

In this study, we applied human factors best practices to the design of an enhanced target symbol set for terminal displays. To design new symbols, we first identified types of information that would be most operationally useful. We selected four types of information that would provide the greatest operational benefits and tactical support for the controllers. These included aircraft category (Small, Large, Heavy, and Super Heavy), aircraft heading, aircraft altitude, and aircraft conformance to its assigned route or altitude. To evaluate the effectiveness of the symbols, we used search, sorting, and selection tasks that measured symbol preference, reaction time, and symbol identification. Our results indicated that the controllers used consistent heuristics for categorizing symbols into different size and conformance categories. For both the heading and category coding, we also found benefits in terms of both increased accuracy and decreased reaction times. We did not find any benefits for the altitude coding. By using meaningful symbols to convey relevant tactical information, such as aircraft category and heading, we can both increase visual search speed and increase target detection accuracy. On the basis of our findings, we propose a set of symbols and provide recommendations for creating standardized symbology for terminal situation displays and other safety critical systems

Usability Assessment of the fly.faa.gov Website

The Federal Aviation Administration (FAA) Air Traffic Control System Command Center provides information about arrival and departure delays through its website: www.fly.faa.gov. This document reports results from a usability assessment of this website. Researchers from the FAA Human Factors Research and Engineering Group, Federal Aviation Administration NAS Human Factors Group William J. Hughes Technical Center Atlantic City International Airport, NJ 08405, conducted the assessment to determine how successfully users could complete common tasks, such as finding delay information, definitions of acronyms and aviation terms, and answers to frequently asked questions. We found that the participants were able to find most delay information easily, but had some difficulty finding non-delay information. Also, we identified some differences in performance between the expert users, moderate users, and novice users, with novice users typically having more difficulty finding information than moderate users and expert users. The assessment also examined user satisfaction. The participants reported a high level of user satisfaction, with no apparent differences based on their level of aviation-related expertise. However, the human factor so observations and questionnaire data indicated several areas of the website that could be improved. In this report, we provide a list of usability issues rated and ranked according to severity, and we provide recommendations for addressing these issues, which should help guide future enhancement efforts