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Quantified HI Morphology I: Multi-Wavelengths Analysis of the THINGS Galaxies  [PDF]
B. W. Holwerda,N. Pirzkal,W. J. G. de Blok,A. Bouchard,S-L. Blyth,K. J. van der Heyden,E. C. Elson
Physics , 2011, DOI: 10.1111/j.1365-2966.2011.18938.x
Abstract: Galaxy evolution is driven to a large extent by interactions and mergers with other galaxies and the gas in galaxies is extremely sensitive to the interactions. One method to measure such interactions uses the quantified morphology of galaxy images. Well-established parameters are Concentration, Asymmetry, Smoothness, Gini, and M20 of a galaxy image. Thus far, the application of this technique has mostly been restricted to restframe ultra-violet and optical images. However, with the new radio observatories being commissioned (MeerKAT, ASKAP, EVLA, WSRT/APERTIF, and ultimately SKA), a new window on the neutral atomic hydrogen gas (HI) morphology of a large numbers of galaxies will open up. The quantified morphology of gas disks of spirals can be an alternative indicator of the level and frequency of interaction. The HI in galaxies is typically spatially more extended and more sensitive to low-mass or weak interactions. In this paper, we explore six morphological parameters calculated over the extent of the stellar (optical) disk and the extent of the gas disk for a range of wavelengths spanning UV, Optical, Near- and Far-Infrared and 21 cm (HI) of 28 galaxies from The HI Nearby Galaxy Survey (THINGS). Though the THINGS sample is small and contains only a single ongoing interaction, it spans both non-interacting and post-interacting galaxies with a wealth of multi-wavelength data. We find that the choice of area for the computation of the morphological parameters is less of an issue than the wavelength at which they are measured. The signal of interaction is as good in the HI as in any of the other wavelengths in which morphology has been used to trace the interaction rate to date, mostly star-formation dominated ones (near- and far-ultraviolet). The Asymmetry and M20 parameters are the ones which show the most promise as tracers of interaction in 21 cm line observations.
360 Quantified Self  [PDF]
Hamed Haddadi,Ferda Ofli,Yelena Mejova,Ingmar Weber,Jaideep Srivastava
Computer Science , 2015,
Abstract: Wearable devices with a wide range of sensors have contributed to the rise of the Quantified Self movement, where individuals log everything ranging from the number of steps they have taken, to their heart rate, to their sleeping patterns. Sensors do not, however, typically sense the social and ambient environment of the users, such as general life style attributes or information about their social network. This means that the users themselves, and the medical practitioners, privy to the wearable sensor data, only have a narrow view of the individual, limited mainly to certain aspects of their physical condition. In this paper we describe a number of use cases for how social media can be used to complement the check-up data and those from sensors to gain a more holistic view on individuals' health, a perspective we call the 360 Quantified Self. Health-related information can be obtained from sources as diverse as food photo sharing, location check-ins, or profile pictures. Additionally, information from a person's ego network can shed light on the social dimension of wellbeing which is widely acknowledged to be of utmost importance, even though they are currently rarely used for medical diagnosis. We articulate a long-term vision describing the desirable list of technical advances and variety of data to achieve an integrated system encompassing Electronic Health Records (EHR), data from wearable devices, alongside information derived from social media data.
Chronic mania: An unexpectidly long episode?  [cached]
Chawla Jatinder,Balhara Yatan Pal,Mohan Indra,Sagar Rajesh
Indian Journal of Medical Sciences , 2006,
Abstract: Mood disorders (unipolar and bipolar disorders) are one of the most distressing and disabling disorders known to man kind. Mood disorders may present as either a depressive phase or manic phase. Chronic mania by definition means presence of manic symptoms in excess of 2 yrs without remission. Chronic mania differs in its psychopathological presentation from the acute mania. Chronic mania also poses a diagnostic and management challenge. Along with the poor response to the treatment these patients are also likely to suffer from severe impairment in the social, familial, interpersonal and occupational functioning. These disturbances may add to the chronicity of the condition. This case underlines the significance of keeping possibility of chronic mania which has been overlooked in the recent literature.
Analytical Survey of Wearable Sensors  [PDF]
A. Rehman,M. Mustafa,N. Javaid,U. Qasim,Z. A. Khan
Computer Science , 2012,
Abstract: Wearable sensors inWireless Body Area Networks (WBANs) provide health and physical activity monitoring. Modern communication systems have extended this monitoring remotely. In this survey, various types of wearable sensors discussed, their medical applications like ECG, EEG, blood pressure, detection of blood glucose level, pulse rate, respiration rate and non medical applications like daily exercise monitoring and motion detection of different body parts. Different types of noise removing filters also discussed at the end that are helpful in to remove noise from ECG signals. Main purpose of this survey is to provide a platform for researchers in wearable sensors for WBANs.
Software for Wearable Devices: Challenges and Opportunities  [PDF]
He Jiang,Xin Chen,Shuwei Zhang,Xin Zhang,Weiqiang Kong,Tao Zhang
Computer Science , 2015,
Abstract: Wearable devices are a new form of mobile computer system that provides exclusive and user-personalized services. Wearable devices bring new issues and challenges to computer science and technology. This paper summarizes the development process and the categories of wearable devices. In addition, we present new key issues arising in aspects of wearable devices, including operating systems, database management system, network communication protocol, application development platform, privacy and security, energy consumption, human-computer interaction, software engineering, and big data.
Gait Analysis Using Wearable Sensors  [PDF]
Weijun Tao,Tao Liu,Rencheng Zheng,Hutian Feng
Sensors , 2012, DOI: 10.3390/s120202255
Abstract: Gait analysis using wearable sensors is an inexpensive, convenient, and efficient manner of providing useful information for multiple health-related applications. As a clinical tool applied in the rehabilitation and diagnosis of medical conditions and sport activities, gait analysis using wearable sensors shows great prospects. The current paper reviews available wearable sensors and ambulatory gait analysis methods based on the various wearable sensors. After an introduction of the gait phases, the principles and features of wearable sensors used in gait analysis are provided. The gait analysis methods based on wearable sensors is divided into gait kinematics, gait kinetics, and electromyography. Studies on the current methods are reviewed, and applications in sports, rehabilitation, and clinical diagnosis are summarized separately. With the development of sensor technology and the analysis method, gait analysis using wearable sensors is expected to play an increasingly important role in clinical applications.
New Wideband Passive and Active Wearable Energy Harvesting Systems for Wearable Sensors  [PDF]
Albert Sabban
Journal of Sensor Technology (JST) , 2017, DOI: 10.4236/jst.2017.74004
Abstract: Abstract: Demand for green energy is in continuous growth. Wide band efficient wearable systems and antennas are crucial for energy harvesting wearable systems for medical and sport wearable sensors. Small harvesting antennas suffer from low efficiency. The efficiency of energy harvesting wearable systems may be improved by using active wearable harvesting systems with low power consumption. Amplifiers may be connected to the wearable antenna feed line to increase the system dynamic range. Novel active wearable harvesting systems are presented in this paper. Notch and Slot antennas are low profile and low cost and may be employed in energy harvesting wearable systems. The wearable harvesting system components are assembled on the same PCB. The notch and slot antennas bandwidth is up to 100% for VSWR better than 3:1. The slot antenna gain is around 3 dBi with efficiency higher than 90%. The antennas electrical parameters were computed in vicinity of the human body. The active antenna gain is 24 ± 2.5 dB for frequencies from 200 MHz to 900 MHz. The active antenna gain is 12.5 ± 2.5 dB for frequencies from 1 GHz to 3 GHz. The active slot antenna Noise Figure is 0.5 ± 0.3 dB for frequencies from 200 MHz to 3.3 GHz.
Risk Perceptions for Wearable Devices  [PDF]
Linda Lee,Serge Egelman,Joong Hwa Lee,David Wagner
Computer Science , 2015,
Abstract: Wearable devices, or "wearables," bring great benefits but also potential risks that could expose users' activities with- out their awareness or consent. In this paper, we report findings from the first large-scale survey conducted to investigate user security and privacy concerns regarding wearables. We surveyed 1,782 Internet users in order to identify risks that are particularly concerning to them; these risks are inspired by the sensor inputs and applications of popular wearable technologies. During this experiment, our questions controlled for the effects of what data was being accessed and with whom it was being shared. We also investigated how these emergent threats compared to existent mobile threats, how upcoming capabilities and artifacts compared to existing technologies, and how users ranked technical and nontechnical concerns to sketch a concrete and broad view of the wearable device landscape. We hope that this work will inform the design of future user notification, permission management, and access control schemes for wearables.
Ziprasidone in the treatment of mania in bipolar disorder
Stephen E Nicolson,Charles B Nemeroff
Neuropsychiatric Disease and Treatment , 2007,
Abstract: Stephen E Nicolson1, Charles B Nemeroff21From the Department of Psychiatry, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA; 2From the Department of Psychiatry and Behavioral Sciences, Emory University, School of Medicine, Atlanta, GA, USAAbstract: Ziprasidone is an atypical antipsychotic with a unique receptor-binding profile. Currently, ziprasidone is approved by the US Food and Drug Administration for the acute treatment of psychosis in schizophrenia and mania in bipolar disorder. When compared to certain other atypical antipsychotics, ziprasidone appears to have a relatively benign side effect profile, especially as regards metabolic effects eg, weight gain, serum lipid elevations and glucose dysregulation. Taken together, these data suggest that ziprasidone may be a first line treatment for patients with bipolar mania. However, ziprasidone is a relatively new medication for which adverse events after long-term use and/or in vulnerable patient populations must be studied. Unstudied areas of particular importance include the efficacy and safety of ziprasidone in the treatment of bipolar depression and relapse prevention of mania as, well as in the subpopulations of pregnant women, the elderly and pediatric patients. The emergence of mania in patients taking ziprasidone is another topic for further study.Keywords: antipsychotic, bipolar disorder, mania, mood disorder, neuroleptic, ziprasidone
Mania/hipomania induzida por aripiprazol
Souza, Márcio Gerhardt Soeiro de;Santos, Carlos Henrique Rodrigues dos;Moreno, Ricardo Alberto;
Revista de Psiquiatria Clínica , 2010, DOI: 10.1590/S0101-60832010000400006
Abstract: aripiprazole is an atypical antipsychotic often used as monotherapy or as add-on therapy in patients with manic episodes, as well as for bipolar disorders. the antidepressive effect of the atypical antipsychotic medications raises the possibility that these drugs may increase the risk of mania in susceptible individuals. with the aim of providing further evidence on this subject, herein we reported three patients with bipolar disorder and mania induced by aripiprazole. patients had different final diagnosis as well as different comorbidities. their therapeutic regimen was different as well. onset of manias was temporarily associated with aripiprazole use and important improvement happened after the discontinuation of this drug. we suggest that aripiprazole, due to its antidepressant properties, is a risk factor for mania and hypomania. mood stabilizer is recommended in certain individuals using this drug, in order to prevent phase switch. we also suggest the antidepressant efficacy of aripiprazole.
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