Miracle-dz/UniFAR-FTUs huggingface dataset:
Indoor Positioning With Opportunistic Navigation in Android Smartphones

This paper aims to introduce an android application that positions a user in an indoor environment and allows him to navigate opportunistically through the indoor space. RSSI (Received Signal Strength Indication) technique together with trilateration is proposed to cater this solution. In a typical scenario, when a user walks inside a building, a smartphone client conducts a single communication with our server to receive the RSS radiomap and is then able to position itself independently using the observed RSS values. Opportunistic Navigation is then enabled that allows the user to navigate himself. Keywords—RSS fingerprints, radiomap, trilaterate
Differential effects of sodium oxybate and baclofen on EEG, sleep, neurobehavioral performance, and memory.

STUDY OBJECTIVES Sodium oxybate (SO) is a GABAβ agonist used to treat the sleep disorder narcolepsy. SO was shown to increase slow wave sleep (SWS) and EEG delta power (0.75-4.5 Hz), both indexes of NREM sleep (NREMS) intensity and depth, suggesting that SO enhances recuperative function of NREM. We investigated whether SO induces physiological deep sleep. DESIGN SO was administered before an afternoon nap or before the subsequent experimental night in 13 healthy volunteers. The effects of SO were compared to baclofen (BAC), another GABAβ receptor agonist, to assess the role of GABAβ receptors in the SO response. MEASUREMENTS AND RESULTS As expected, a nap significantly decreased sleep need and intensity the subsequent night. Both drugs reversed this nap effect on the subsequent night by decreasing sleep latency and increasing total sleep time, SWS during the first NREMS episode, and EEG delta and theta (0.75-7.25 Hz) power during NREMS. The SO-induced increase in EEG delta and theta power was, however, not specific to NREMS and was also observed during REM sleep (REMS) and wakefulness. Moreover, the high levels of delta power during a nap following SO administration did not affect delta power the following night. SO and BAC taken before the nap did not improve subsequent psychomotor performance and subjective alertness, or memory consolidation. Finally, SO and BAC strongly promoted the appearance of sleep onset REM periods. CONCLUSIONS The SO-induced EEG slow waves seem not to be functionally similar to physiological slow waves. Our findings also suggest a role for GABAβ receptors in REMS generation.
RETROSPECTIVE STUDY OF DISTRIBUTION OF COLORECTAL CANCERS IN NORTH COASTAL ANDHRA PRADESH

1Associate Professor, Department of General Medicine, Andhra Medical College, Visakhapatnam, Andhra Pradesh. 2Postgraduate, Department of General Medicine, Andhra Medical College, Visakhapatnam, Andhra Pradesh. 3Postgraduate, Department of General Medicine, Andhra Medical College, Visakhapatnam, Andhra Pradesh. 4Senior Resident, Department of Gastroenterology, Andhra Medical College, Visakhapatnam, Andhra Pradesh. 5Associate Professor, Department of Gastroenterology, Andhra Medical College, Visakhapatnam, Andhra Pradesh.
A Systematic Review of Recent Developments in IT Outsourcing Research

ABSTRACT Incomplete conceptualization of the information technology outsourcing (ITO) literature represents a challenge for navigating extant research and engaging into purposeful academic discourse. We extend the analysis of empirical findings on determinants of ITO decisions, outcomes, and governance. We identify increasing levels of research maturity, analyze effects of 38 new independent variables, highlight contradictory findings, and observe increasing interest in emerging topics such as innovation through ITO and multisourcing. Abbreviations: AIS: Association for Information Systems; ASP: Application Service Provision; EBIT: Earnings Before Interest and Taxes; CIO: Chief Information Officer; IS: Information Systems; IT: Information Technology; ITO: Information Technology Outsourcing; OTH: Ostbayerische Technische Hochschule/East Bavarian Technical University; PPE: Profit Per Employee; R&D: Research & Development; ROA: Return on Assets; TCO: Total Cost of Ownership; TU: Technische Universität/Technical University
Reverse Logistics Model for Mobile Phone Industry

Reverse logistics is an important strategic operational tool in nowadays business era. This is particularly important for short-life cycle industries like mobile phone industry. In this paper, a conceptual model for reverse logistics which focuses on mobile phone industry is developed. The model incorporates both internal and external factors that affect material flows and the reverse logistics activities. The usefulness of the model is demonstrated through a case study, which indicates how a company could create values from the returns by adopting this model. The model not only provides managers a template for analyzing their own reverse logistics challenges, but also serves as a reference model for similar industries
Efficient realization of parallel HEVC intra encoding

The emerging next generation video coding standard - HEVC (High Efficiency Video Coding) achieves more than 50% bitrate reduction in comparison with its predecessor H.264/AVC under the same visual quality, but at the expense of a substantial complexity increase. As a result, a traditional single thread encoder which operates in sequential way is difficult to be optimized to a satisfactory level, for example, a real-time HEVC codec for Ultra High Definition resolution (4Kx2K@50fps and beyond). Thus parallelism in the encoding stage must be extensively utilized to meet such requirements. In this paper, we give a full analysis of fine granularity parallelism for HEVC intra coding and exploit its maximum parallel degree in context of coding unit dependency. Then an efficient parallelization encoding strategy is proposed and implemented on x265, the first open source HEVC encoder targeted to real-time application, to demonstrate its potentiality. Experimental results show that our scheme could achieve average 502% speedup gains for different video sequences without performance loss.
The International Outcome Inventory for Hearing Aids (IOI-HA): psychometric properties of the English version: El Inventario International de Resultados para Auxiliares Auditivos (IOI-HA): propiedades psicometricas de la version en ingles

The International Outcome Inventory for Hearing Aids (IOI-HA) is a seven-item questionnaire designed to be generally applicable in evaluating the effectiveness of hearing aid treatments. The inventory was developed to facilitate cooperation among researchers and program evaluators in diverse settings. It is brief and general enough to be appended to other outcome measures that might be planned in a particular application, and will provide directly comparable data across otherwise incompatible projects. For this plan to be successful, it is essential to generate psychometrically equivalent translations in the languages in which hearing aid research and treatment assessments are performed. This article reports the psychometric properties of the inventory for the original English version. The items are reasonably internally consistent, providing adequate statistical support for summing the scores to generate a total outcome score. However, for maximum internal consistcncy, it would be desirable to generate two scores for the inventory. Sumario El Inventario Internacional de Resultados para Auxiliares Auditivos (IOI-HA) es un cuestionario de siete puntos diseñado para aplicarse de manera general en la evaluation de la efectividad de los tratamienlos con auxiliares auditivos. El inventario se desarrollo para facililar la cooperation entre los investigadores y quienes evaluan programas, en diversos ambientes. Por ser suficientemente breve y general puede ser agregado a otras formas particulares de medicion de resultados que se apliquen y podrá proveer datos directamente comparables entre proyectos que de otra forma serían incompatibles. Para que este plan sea exitoso, es esencial generar traducciones psicométricamente equivalentes en las lenguas en las cuales se realiza la investigaciócute;n sobre auxiliares auditivos y sobre el análisis de los tratamientos. Este articulo reporta las propiedades psicométricas del inventario en su versiócute;n original en inglés. Los puntos son razonable e internamente consistentes y proveen una base estadística adecuada para poder sumar los puntos y generar así un puntaje de resultados integral. No obstante, para lograr la máxima consistencia interna, es deseable que para el inventario se generen dos puntajes.
A sociological approach to the participatory development of agricultural decision support systems.

Farming systems are characterised by complex interactions between a range of economic, environmental and social factors. This complexity has led to a search for ways in which scientific knowledge can be incorporated into forms that industry stakeholders can use to assist their management decisions. Decision support systems (DSSs) are one of the ways in which scientists have attempted to make agricultural systems science more accessible and useful for industry stakeholders. Recently, there has been a shift towards more participatory processes in development and application of DSSs. We have analysed these processes using concepts from the sociology of science and technology, and developed a framework for describing the phases of this participatory process and its likely outcomes. Understanding these phases may provide greater certainty that the process will result in the desired productive relationships and mutual understanding. We identify three outcomes of participatory DSS development. Firstly, interactions around DSSs may lead to practice change, resulting from greater capacity built amongst participants during the interactions; however the DSS itself may not be subsequently used. Secondly, DSSs may be used by industry stakeholders on an ongoing basis to improve practice. Thirdly, the interactions may support current management practices and the DSS provides little additional benefit. We propose that participatory DSS development and/or application should be viewed as a learning process leading to knowledge acquisition, rather than a software development process. We illustrate these concepts with a case study from the sugar industry.
An identified serotonergic neuron regulates adult neurogenesis in the crustacean brain

New neurons are born and integrated into functional circuits in the brains of many adult organisms. In virtually all of these systems, serotonin is a potent regulator of neuronal proliferation. Specific neural pathways underlying these serotonergic influences have not, however, been identified and manipulated. The goal of this study was to test whether adult neurogenesis in the crustacean brain is influenced by electrical activity in the serotonergic dorsal giant neurons (DGNs) innervating the primary olfactory processing areas, the olfactory lobes, and higher order centers, the accessory lobes. Adult‐born neurons occur in two interneuronal cell clusters that are part of the olfactory pathway. This study demonstrates that neurogenesis also continues in these areas in a dissected, perfused brain preparation, although the rate of neuronal production is lower than in brains from intact same‐sized animals. Inclusion of 10−9 M serotonin in the perfusate delivered to the dissected brain preparation restores the rate of neurogenesis to in vivo levels. Although subthreshold stimulation of the DGN does not significantly alter the rate of neurogenesis, electrical activation of a single DGN results in significant increases in neurogenesis in Cluster 10 on the same side of the brain, when compared with levels on the contralateral, unstimulated side. Measurements of serotonin levels in the perfusate using high‐performance liquid chromatography established that serotonin levels are elevated about 10‐fold during DGN stimulation, confirming that serotonin is released during DGN activity. This is the first identified neural pathway through which adult neurogenesis has been directly manipulated. © 2009 Wiley Periodicals, Inc. Develop Neurobiol 2009
A Comparative Study of Fuzzy C-Means and Possibilistic Fuzzy C-Means Algorithm on Noisy Grayscale Images

Grouping is used to organize graphical data in the cluster's unsupervised learning methods. Grouping is used in the field of image processing to identify objects that have the same characteristics in an image. Clustering can be categorized into Hard and Fuzzy clustering scheme. This paper deals with the study of clustering soft (Fuzzy) algorithm outputs such as Fuzzy C-Means (FCM) and Possibilistic Fuzzy C-Means (PFCM). These algorithms are used to segment and analyze standard and colored images, but this research work involves noisy images in gray levels. PSNR, MSE and SSIM are used as an evaluation parameter to compare the FCM and PFCM results. Finally, the experimental results proved that PFCM favorable on FCM. Keywords— Image segmentation, Clustering, FCM, PFCM.
Spoken term detection based on the most probable phoneme sequence

The aim of the spoken term detection task is to find the occurrence of user-entered keywords in an archive of audio recordings. In this area, besides the accuracy of hits returned, the speed of search is also very important, for which an intermediate representation of recordings is normally used. In this paper we evaluate a spoken term detection method which represents the speech signals by their most probable phoneme sequence, on which a dynamic search is then performed. As the accuracy of the phoneme recognizer used is vital, we shall test this method by using several approaches of phoneme identification. We found that our method already achieves satisfactory accuracy, although its run time is still rather high. We also found that this approach is heavily dependent on the performance of the phoneme recognizer.
Obstacle Detection with Deep Convolutional Neural Network

The difficulty of obstacle detection is how to locate and separate the obstacle from the complex background. Traditional computer vision algorithms can not handle this problem very well due to the handcrafted designed features are vulnerable in complex background. In this article, we use deep convolutional neural network (CNN) to detect obstacle in complex scene. The deep architecture of the CNN guarantees the features learned by the network are rich and effective for detecting the obstacle. The results show that the model achieved a good performance.
A method of selective stimulation to epidermal skin receptors for realistic touch feedback

In this paper, we propose a device to stimulate only the superficial mechanoreceptors in the skin, and report the feeling caused by the stimulus. We describe the principle of the selective stimulation using air pressure, and we show the selectivity is more advanced than that of our previous system using magnet chips which was presented last year. We experimentally confirmed that a sparse array of the superficial stimulators could display realistic touch on objects including finer virtual textures than the stimulator spacing.
The role of Wnt-Frizzled pathway in neuroblastoma

Das Neuroblastom ist ein Tumor, der bei der Entwicklung des peripheren sympathischen Nervensystems aus der Neuralleiste entsteht und ist der zweithaufigste extrakraniale bosartige Tumor im Kindesalter. Fruhere Studien haben gezeigt, dass eine permanente Aktivierung von wingless/int1 (Wnt)/Frizzled (FZD) Signalwegen zu Krebs fuhren kann. Es ist aber unklar, ob die Wnt/FZD Signalwege beim Wachstum des Neuroblastoms beteiligt sind. Das Ziel dieser Studie war die Untersuchung der Rolle von Wnt-FZD2 Signalwegen in Neuroblastomazellen und die mogliche Wechselwirkung mit Makrophagen. Fur diese Studie wurden zwei Hochrisiko-Neuroblastomzelllinien verwendet, namlich die SK-N- AS Zelllinie ohne MYCN-Amplifikation und die SK-N-DZ Zelllinie mit MYCN- Amplifikation. Uberdies wurden auch Tumorproben von SK-N-AS und SK-N-DZ Xenotransplantatationsmodellen untersucht. Neuroblastomazellen wurden mit rekombinanten Wnt3a und Wnt5a Proteinen behandelt, um die Auswirkungen auf maligne Eigenschaften von Krebszellen, wie Proliferation und Migration, zu bestimmen. Zusatzlich wurde die Aktivierung von Komponenten verschiedener Wnt Signalwege durch Western blot-Analysen untersucht. Der Einfluss einer Aktivierung von FZD2 Signalwegen in den Neuroblastomzellen auf die Rekrutierung bzw. Die Ergebnisse dieser Studie zeigen, dass die Stimulation von FZD2 durch Wnt3a und Wnt5a β-Catenin-abhangige und -unabhangige Wnt Signalfaktoren reguliert. Die Blockade von FZD2 unterdruckt den β-Catenin-abhangigen Wnt-Signalweg und erhoht die Phosphorylierung von PKC, AKT und ERK in vitro, was eine Hochregulation von β-Catenin-unabhangiger Signalaktivitat zeigt. Die Anzahl der TAMs im Tumorgewebe wurde durch die Hemmung von FZD2 nicht beeinflusst. Zusammenfassend deuten die Daten auf eine Rolle von FZD2 bei der Proliferation von Hochrisiko-Neuroblastomazellen hin und FZD2 ist daher ein potentieller Kandidat fur eine therapeutische Hemmung bei FZD2-exprimierenden Neuroblastom Patienten.
Millimeter-Wave Continuous-Mode Power Amplifier for 5G MIMO Applications

This paper presents three millimeter-wave (mm-wave) continuous-mode power amplifiers (PAs) for fifth-generation (5G) MIMO applications, including a two-stage differential continuous-mode Class-F<sup>−1</sup> PA in 130-nm SiGe process, a single-stage differential continuous-mode hybrid Class-F/F<sup>−1</sup> PA in 45-nm SOI CMOS process, and a two-stage differential continuous-mode hybrid Class-F/F<sup>−1</sup> PA in 45-nm SOI CMOS process. The first PA design covers 19–29.5 GHz, while the other two designs cover 23–41 GHz, all covering multiple 5G bands (24/28/37/39 GHz). All the presented PA designs are based on a proposed transformer-based continuous-mode harmonically tuned PA output network. This network provides proper harmonic impedance terminations for the fundamental, second-order, and third-order harmonic impedances, which supports continuous-mode Class-F<sup>−1</sup> or hybrid Class-F/F<sup>−1</sup> PA operations to achieve ultrawide bandwidth yet high efficiency. The first PA design achieves a wide <inline-formula> <tex-math notation="LaTeX">$P_{\mathrm {sat}}~1$ </tex-math></inline-formula>-dB bandwidth of 19–29.5 GHz (43.3%) and high peak power-added efficiency (PAE) (43.5%). The second design achieves an ultrawide <inline-formula> <tex-math notation="LaTeX">$P_{\mathrm {sat}}~1$ </tex-math></inline-formula>-dB bandwidth of 23.5–41 GHz (53.3%) and high peak PAE (46%). Moreover, it achieves 43.4% PAE and 18.6-dBm <inline-formula> <tex-math notation="LaTeX">$P_{\mathrm {sat}}$ </tex-math></inline-formula> at 27 GHz, 40.2% PAE and 18.6-dBm <inline-formula> <tex-math notation="LaTeX">$P_{\mathrm {sat}}$ </tex-math></inline-formula> at 37 GHz, and 41.2% PAE and 18.5-dBm <inline-formula> <tex-math notation="LaTeX">$P_{\mathrm {sat}}$ </tex-math></inline-formula> at 39 GHz, respectively. The third PA design also achieves an ultrawide <inline-formula> <tex-math notation="LaTeX">$P_{\mathrm {sat}}~1$ </tex-math></inline-formula>-dB bandwidth of 23.5–41 GHz (53.3%) and high peak PAE (43.2%). It achieves 43% PAE and 18.9-dBm <inline-formula> <tex-math notation="LaTeX">$P_{\mathrm {sat}}$ </tex-math></inline-formula> at 27 GHz, 37% PAE and 19-dBm <inline-formula> <tex-math notation="LaTeX">$P_{\mathrm {sat}}$ </tex-math></inline-formula> at 37 GHz, and 36% PAE and 18.9-dBm <inline-formula> <tex-math notation="LaTeX">$P_{\mathrm {sat}}$ </tex-math></inline-formula> at 39 GHz, respectively. Extensive 64-/256-QAM modulation tests demonstrate the high PA linearity. Our proposed PA designs outperform the reported mm-wave silicon-based 5G PAs in terms of high efficiency over an ultrawide bandwidth.
A method for extraction of affective audio-visual facial clips from movies

In order to design algorithms for affect recognition from facial expressions and speech, audio-visual databases are needed. The affective databases used by researchers today are generally recorded in laboratory environments and contain acted expressions. In this work, we present a method for extraction of audio-visual facial clips from movies. The database collected using the proposed method contains English and Turkish clips and can easily be extended for other languages. We also provide facial expresssion recognition results, which utilize local phase quantization based feature extraction and a support vector machine. Due to larger number of features compared to the number of examples, the affect recognition accuracy improves significantly when feature selection is also performed.
Solution structure of cytochrome c6 from the thermophilic cyanobacterium Synechococcus elongatus

Cytochrome c6 is a small, soluble electron carrier between the two membrane‐bound complexes cytochrome b6f and photosystem I (PSI) in oxygenic photosynthesis. We determined the solution structure of cytochrome c6 from the thermophilic cyanobacterium Synechococcus elongatus by NMR spectroscopy and molecular dynamics calculations based on 1586 interresidual distance and 28 dihedral angle restraints. The overall fold exhibits four α‐helices and a small antiparallel β‐sheet in the vicinity of Met58, one of the axial heme ligands. The flat hydrophobic area in this cytochrome c6 is conserved in other c6 cytochromes and even in plastocyanin of higher plants. This docking region includes the site of electron transfer to PSI and possibly to the cytochrome b6f complex. The binding of cytochrome c6 to PSI in green algae involves interaction of a negative patch with a positive domain of PSI. This positive domain has not been inserted at the evolutionary level of cyanobacteria, but the negatively charged surface region is already present in S.elongatus cytochrome c6 and may thus have been optimized during evolution to improve the interaction with the positively charged cytochrome f. As the structure of PSI is known in S.elongatus, the reported cytochrome c6 structure can provide a basis for mutagenesis studies to delineate the mechanism of electron transfer between both.
Categorizing object-action relations from semantic scene graphs

In this work we introduce a novel approach for detecting spatiotemporal object-action relations, leading to both, action recognition and object categorization. Semantic scene graphs are extracted from image sequences and used to find the characteristic main graphs of the action sequence via an exact graph-matching technique, thus providing an event table of the action scene, which allows extracting object-action relations. The method is applied to several artificial and real action scenes containing limited context. The central novelty of this approach is that it is model free and needs a priori representation neither for objects nor actions. Essentially actions are recognized without requiring prior object knowledge and objects are categorized solely based on their exhibited role within an action sequence. Thus, this approach is grounded in the affordance principle, which has recently attracted much attention in robotics and provides a way forward for trial and error learning of object-action relations through repeated experimentation. It may therefore be useful for recognition and categorization tasks for example in imitation learning in developmental and cognitive robotics.
INTERACTIVE SOUND FIELD SIMULATION IN A MULTI-SCREEN IMMERSIVE PROJECTION DISPLAY

This paper describes the interactive sound field simulation method that can control the virtual sound field interactively in the multi-screen immersive projection display. In this method, convolution filters are replaced in real-time using the multi-channel digital signal processor, and the simulated sounds are displayed using the 16-channel speaker system. This system was applied to the communication system using the shared virtual world, and the effectiveness of this method was evaluated.