Miracle-dz/UniFAR-FTUs huggingface dataset:
Translational dynamics of individual microbubbles with millisecond scale ultrasound pulses.

It is established that radiation forces can be used to transport ultrasound contrast agents, particularly for molecular imaging applications. However, the ability to model and control this process in the context of therapeutic ultrasound is limited by a paucity of data on the translational dynamics of encapsulated microbubbles under the influence of longer pulses. In this work, the translation of individual microbubbles, isolated with optical tweezers, was experimentally investigated over a range of diameters (1.8-8.8 μm, n = 187) and pressures (25, 50, 100, 150, and 200 kPa) with millisecond pulses. Data were compared with theoretical predictions of the translational dynamics, assessing the role of shell and history force effects. A pronounced feature of the displacement curves was an effective threshold size, below which there was only minimal translation. At higher pressures (≥150 kPa) a noticeable structure emerged where multiple local maxima occurred as a function of bubble size. The ability to accurately capture these salient features depended on the encapsulation model employed. In low Reynolds number conditions (i.e., low pressures, or high pressures, off-resonance) the inclusion of history force more accurately fit the data. After pulse cessation, bubbles exhibited substantial displacements consistent with the influence of history effects.
Social contexts of development in natural outdoor environments: children’s motor activities, personal challenges and peer interactions at the river and the creek

This study examined the influence of spending time outdoors on young children’s physical and socioemotional development. We observed preschoolers’ activities in two naturally provisioned outdoor environments over the course of one year. Eleven preschoolers were videotaped continuously for 16 days at a local river and 9 days at a creek adjacent to the school. In addition to the quantitative analyses of children’s behaviors, a case study of three children’s experiences over the course of the year was conducted. Both the river and the creek settings encouraged a multitude of physical and play behaviors with similar types of affordances, including flat surfaces for running, rocks for climbing and jumping off, and water for exploration and play, but the wilder environment (river) afforded more risk and personal challenges. Observations of children’s motor activities, play and responses to challenging environmental features supported the importance of accumulated experience and social context for the development of confidence in the face of risk, individual exploration and positive social support and engagement with peers.
Three‐dimensional galvanic distortion of three‐dimensional regional conductivity structures: Comment on “Three‐dimensional joint inversion for magnetotelluric resistivity and static shift distributions in complex media” by Yutaka Sasaki and Max A. Meju

[1] Distortion of natural time variations of the electric and magnetic fields induced by external magnetic sources by local, near-surface inhomogeneities has been the bane of the magnetotelluric method (MT). These distortions are caused by galvanic charges on conductivity gradients at the boundaries of near-surface inhomogeneities that are below the resolution of the MT experiment. They often dominate over the inductive response of deeper structures, leading to erroneous interpretations if not appropriately considered. Indeed, one can argue that MT has become a generally robust and useful geological mapping tool only with the advent of distortion recognition, appraisal and removal methods. On land, these distortions are usually low in regions of laterally uniform surficial layers, such as sedimentary basin environments, and extreme in highly heterogeneous resistive environments, such as on Precambrian regions. On the seafloor they are usually extreme. They are always present and affect the MT responses derived from the observed fields to a greater or lesser extent, and must be considered in any analyses and subsequent interpretations. [2] Distortion methods for MT data responding to onedimensional (1-D) and two-dimensional (2-D) structures (reviewed below) have been advanced and are usually quite effective, except in the situations of very severe distortion. For data from three-dimensional (3-D) structures however, the problems caused by these galvanic charges becomes far more complex and require innovative analysis and treatment. [3] In their paper, Sasaki and Meju [2006] describe their approach to 3-D inversion of MT data for 3-D structure taking galvanic distortion, which they characterize and simplify as static shifts, into account. Their paper is an update on prior work by Sasaki [2004] with the same approach. The assumption made by the authors is that the magnitudes of the observed off-diagonal elements of the impedance tensor can be described as geometrically shifted versions of their true values, namely in their terms
Challenges of Knowledge Sharing when Facing a Generation Shift. The case of Axalta

'1! ACKNOWLEDGEMENTS'. '2! 1. 'Introduction'. '4! 1.1! Background! 5! 1.2! Problem! Discussion! 6! 1.3! Purpose! and! Research! Question! 7! 1.4! Delimitations! 8! 1.5! Disposition! 9! 2. ''''Theoretical'Framework'. '10! 2.1! The! Knowledge! Concept! 10! 2.2! Knowledge! Creation! 12! 2.2.1$The$SECI,model$. $12! 2.3! Knowledge! Storage! and! Distribution! 14! 2.4! Knowledge! Application! 15! 2.5! Barriers! of! Knowledge! Sharing! 17! 2.6! Motivational! Factors! influencing! Knowledge! sharing! 19! 2.7! Generation! Shift! Impact! on! Knowledge! Sharing! 21! 2.8! The! Conceptual! Model! 22! 3. 'Methodology'. '24! 3.1! Research! Approach! 25! 3.2! Research! Design! 26! 3.2.1$Research$Unit$. $26! 3.2.2$Data$Collection$. $26! 3.2.3$Interview$Process$. $28! 3.2.4$Analysis$of$data$. $30! 3.3! Criteria! for! Evaluating! the! Case! Study! 30! 4. '''Empirical'Findings:'The'Case'of'Axalta'. '32! 4.1! Company! Structure! of! Axalta! 32! 4.1.1$Knowledge$Sharing$at$Axalta$. $33! 4.2! The! Concept! of! Knowledge! 34! 4.2! Knowledge! Creation! 37! 4.3! Knowledge! Storage! and! Distribution! 42! 4.4! Knowledge! Application! 48! 4.5! Motivation! and! Barriers! of! Knowledge! Sharing! 49! 5. ''''Analysis'. '52! 5.1! The! Knowledge! Concept! 53! 5.2! Knowledge! Creation! 54! 5.3! Knowledge! Storage! and! Distribution! 57! 5.4! Knowledge! Application! 59! 5.5! Motivational! Factors! 60! 5.6! Barriers! 64! 5.7! Revised! Conceptual! Model! of! the! Knowledge! Sharing! Process! 65! 6. ''''Conclusions'. '67!
A multiproxy (micro‐XRF, pollen, chironomid and stable isotope) lake sediment record for the Lateglacial to Holocene transition from Thomastown Bog, Ireland

A multiproxy Lateglacial environmental record is presented for a ca. 3.5‐m lacustrine sequence retrieved from a small basin (ca. 2 km2) at Thomastown Bog in County Meath, Ireland. Sediment chemistry, pollen, chironomid and stable isotope data provide a detailed picture of catchment and lake system changes from the end of the last glacial (GS‐2a) to the early Holocene that correspond closely to existing local and regional models of climate change. Concomitant adjustments in independent proxy records are matched to the NGRIP oxygen isotope curve giving 12 event‐episodes ranging from major climatic shifts to lower amplitude, centennial‐ to sub‐centennial‐scale adjustments, including a previously unreported regressive period of landscape instability during the north‐west European ‘Rammelbeek Phase’. The study emphasizes the potential of palaeoenvironmental reconstruction from sediment chemistry where the sediment mixing system reflects autochthonous versus allochthonous inputs. The investigation also indicates problems of interpreting isotope data derived from bulk marl due to possible lag effects controlling the delivery of soil and groundwater and multiple sources of HCO3– (aq.). These research findings have implications for core site selection and for studies attempting to use stable isotopes for correlation purposes.
Electronic Medical Records Management Systems: An Overview

Records document the actions of an organisation’s business activities. Nowadays, more and more government agencies, companies and healthcare organisations are moving towards electronic records from records on paper. In healthcare organisations, Electronic Medical Record (EMR) system is being used to capture, organize, maintain and retrieve patient’s medical records. EMR system consists of a comprehensive database used to store and access patient’s healthcare information. The EMR has replaced the existing paper medical records as the primary source of information for healthcare purposes for all clinical, legal, and administrative purposes. The paper aims to review the existing Electronic Records Management Systems (ERMS) and assess the impact of EMR systems on the healthcare industry. This paper also discusses the advantages and disadvantages of EMR systems and problems encountered while implementing and using the systems by different groups of users. http://dx.doi. org/10.14429/djlit.29. 273
A novel architecture of maximum power point tracking for Ultra-Low-Power based hybrid energy harvester in ubiquitous devices: A review

This research work presents a novel architecture of an Ultra-Low-Power (ULP) based Hybrid Energy Harvester (HEH) consisting of multiple input sources such as kinetic, thermal and solar energy, harvested from passive human power. Having multiple ambient sources mitigates limitations caused by single sources especially for bodily-worn applications; however, this results in impedance mismatch among the different integrated sources. To overcome this limitation, the proposed ULP-HEH will use one power management unit with Maximum Power Point Tracking (MPPT) algorithm and impedance matching considerations to efficiently manage and combine power harvested from all three sources to achieve ULP consumptions. Among other crucial sub-modules of the ULP-HEH are its Asynchronous Finite State Machine (AFSM) cum resource sharing arbiter to prioritize and share energy sources for overall power reduction, an efficient rectification scheme for the piezoelectric input, an adaptive feedback for ULP conditioning, Zero-Current Switching (ZCS) for semi-lossless switching, a self-start circuit for low ambient startup, a Boost converter, a Buck regulator, a fuzzy-based micro-battery charger and a de-multiplexer to switch between harvesting or charging capabilities. All of which are implemented for maximum output extraction and minimal losses. This ULP-HEH will be developed in PSPICE software, Verilog coding under Mentor Graphics environment and later to be verified using Field Programmable Gate Array (FPGA) board before the final layout implementation in CMOS 0.13-µm process technology. This battery-less ULP-HEH is expected to deliver 3.0-5.0V of regulated voltage output from low ambient sources of 35 mV at startup. An efficiency of 90% with an output power of 650 µm is expected when all sources are summed. Also, this ULP-HEH is aimed at reducing power consumption to at least twice (
Sources of Eddy Kinetic Energy in the Labrador Sea

Experiments with a suite of North Atlantic general circulation models are used to examine the sources of eddy kinetic energy (EKE) in the Labrador Sea. A high-resolution model version (112°) quantitatively reproduces the observed signature. A particular feature of the EKE in the Labrador Sea is its pronounced seasonal cycle, with a maximum intensity in early winter, as already found in earlier studies based on altimeter data. In contrast to a previously advanced hypothesis, the seasonally varying eddy field is not related to a forcing by high-frequency wind variations but can be explained by a seasonally modulated instability of the West Greenland Current (WGC). The main source of EKE in the Labrador Sea is an energy transfer due to Reynolds interaction work (barotropic instability) in a confined region near Cape Desolation where the WGC adjusts to a change in the topographic slope: Geostrophic contours tend to converge upstream of Cape Desolation, such that the topographically guided WGC narrows as well and becomes barotropically unstable. The eddies spawned from the WGC instability area, dominating the EKE in the interior Labrador Sea, are predominantly anticyclonic with warm and saline cores in the upper kilometer of the water column, while the few cyclones originating as well from the instability area show a more depth-independent structure. Companion experiments with a ⅓° model exhibit the strength of the WGC, influenced by either changes in the wind stress or heat flux forcing, as a leading factor determining seasonal to interannual changes of EKE in the Labrador Sea
Performance evaluation of different logical topologies and their respective protocols for wireless sensor networks

Wireless sensor networks (WSNs) are at present a standout amongst the most, guaranteeing areas in the field of information and communication technologies (ICT). This new technology has boundless potential for various applications in distinctive regions, including environmental research, medical application, military, transportation, stimulation, emergency administration, security, and smart spaces. However, several constraints of the sensor nodes are the principal obstacles in planning efficient protocols for WSNs. The major challenges of WSNs include energy dissipation; prolong the network lifetime and throughput. This thesis explores logical topologies in WSN. Logical topologies play the most significant role in the overall performance of the network, including its lifetime, routing efficiency, energy dissipation and overheads. A number of logical topologies have been proposed for WSNs including flat topology, cluster-distributed topology, cluster-centralized topology, and chain topology along with their corresponding routing protocols. In addition, the outcome of the study should definitely performed an important of those parameters of concerned. The simulation experiments are done by using NS-2.34 program for the logical topologies considered are cluster–distributed, chain-based, cluster–centralized and flat with the corresponding protocols of LEACH, PEGASIS, LEACH-C and MTE respectively, while MATLAB is used to plot the graphs. The performance metrics studied are the network lifetime, energy dissipation and aggregate data received at the base station. From the results it can be deduced, that the chain topology (PEGASIS) gives a better performance (network lifetime, energy dissipation and throughput at the base station) overall topologies (LEACH, LEACH-C and MTE).
Design and Analysis of Multi-Frequency Unequal-Split Wilkinson Power Divider using Non-Uniform Transmission Lines

In this paper, the design of miniaturized multi-frequency unequal-split Wilkinson power divider (WPD) using non- uniform transmission lines (NTLs) is presented. To achieve compactness, the uniform transmission lines of the conventional WPD are substituted by their equivalent NTLs. Moreover, two extra compact NTLs transformers are incorporated in each arm of the divider for output ports matching purposes. To prove the validity of the design procedure, two examples of single band and triple band NTL-based WPDs, with 2:1 split ratio, are presented. Both dividers are simulated using full- wave simulators. Furthermore, the proposed single band divider is fabricated and tested. Both simulation and measurements results are in good agreement. Besides the rejection of the odd harmonics over the band 1-5 GHz to a level lower than -15 dB, a total length reduction of 37%, and 16% in the single and triple band WPDs, respectively, is achieved.
Islamic Banking and Economic Growth : Empirical Evidence from Malaysia

This paper examines the dynamic interactions between Islamic banking and economic growth of Malaysia by employing the Cointegration test and Vector Error Model (VECM) to see whether the financial system influences growth and growth transforms the operation of the financial system in the long-run. We use time series data of total Islamic bank financing (IBFinancing) and real GDP per capita (RGDP), fixed investment (GFCF), and trade activities (TRADE) to represent real economic sectors. We found that in the short-run only fixed investment that granger cause Islamic bank to develop for 1997:1-2005:4. Where as in the long-run, there is evidence of a bidirectional relationship between Islamic bank and fixed investment and there is evidence to support ̳demand following‘ hypothesis of GDP and Islamic bank, where increase in GDP causes Islamic banking to develop and not vice versa.
Susceptibility of Different Lentil ( Lens culinaris Medik.) Cultivars to Agrobacterium tumefaciens (Smith & Townsend) Conn

313 Abstract: Agrobacterium tumefaciens (Smith& Townsend) Conn is commonly used in gene transfer to plants. The effectiveness of bacterial strains and suitable plant genotypes facilitate this process. In this study, 8 lentil cultivars grown in Turkey were assessed for their susceptibility to two wild-type A. tumefaciens strains, A281 and A136NC. Both strains induced tumors in lentil cultivars, while differing in the ability to form tumors. Although most of the cultivars had some degree of susceptibility to A. tumefaciens infection, cultivars Yeflil 21 and Pul 11 had higher frequencies of tumor formation in both strains than the other cultivars tested.
OULU BUSINESS SCHOOL

Customer churn is one of the key metrics defining company’s growth. While companies are increasing their investments into customer retention, churn remains remarkably high in most industries in B2B sector. This raises a question if service providers have thorough enough understanding of what causes their customers to churn, and how to effectively manage customer churn. This thesis explored executives assumptions on their customer churn, and we were able to provide suggestions on how to improve company’s resource allocation to increase customer retention. Quantitative analysis based on customer data, and qualitative analysis based on executive interviews were conducted to evaluate the executive’s understanding of their customer churn and their ability to improve customer retention. Those two analyses were then compared to each other to make conclusions on the matter. Research was conducted as a case study involving one service provider, with more than 4000 of their customer companies being included in the analysis. Customer churn has been studied widely, and predictive analytics has been found to be effective in detecting future churners. In addition, other studies are suggesting that executive’s might have wrong assumptions of what causes their customers to churn, and their capability of assessing the issue has been questioned. It is crucial for service providers to retain their customers, and even a 10% increase in customer retention can cause 30% increase in company valuation. Hence, misconceptions of what causes customer churn should not be tolerated, and companies should understand their customer churn thoroughly. By possessing the results from executive interviews and from customer data analysis, we were able to draw a conclusion whether the assumptions possessed by the executives were aligned with what the data was telling. While the executive’s assumptions were somewhat accurate and aligned with the data analysis results, there was still room for improvement in understanding what causes customers to churn and how to detect the future churners. Based on the results, it is reasonable to expect that service providers could improve their customer retention by deepening their understanding of their customer churn.
A STUDY OF SCATTERING FROM SNOW EMBEDDED WITH NON-SPHERICAL SHAPES OF SCATTERERS WITH RELAXED HIERARCHICAL EQUIVALENT SOURCE ALGORITHM (RHESA)

Remote sensing has been used widely in studying the earth terrain such as snow or sea ice due to its fast, convenient and long-term monitoring capabilities. SAR images acquired could be used to analyze the condition of snow, snow water equivalent (SWE), surface roughness and others. Theoretical models have also been developed to understand how microwave interacts with the snow medium and the scatterers embedded inside the medium. Conventionally, spherical shape of scatterers is commonly used to represent the ice particles embedded inside snow where the actual shape of scatterers can vary. This paper is to present a theoretical model based on radiative transfer formulation that utilizes computational electromagnetics in the modelling of scattering from arbitrary shape of scatterers. The paper also studies the effect of scatterer shape on scattering mechanisms and total backscattering coefficient. Numerical solution of Relaxed Hierarchical Equivalent Source Algorithm (RHESA) was integrated with existing radiative transfer theoretical model to simulate a layer of random discrete snow medium. Several shapes of scatterers were simulated, and theoretical simulation were compared with ground truth measurement data with promising results.
MOST photometry of the enigmatic PMS pulsator HD 142666

Context. Modeling of pre-main sequence (PMS) stars through asteroseismology of PMS p-mode pulsators has only recently become possible, and spacebased photometry is one of the important sources of data for these efforts. We present precise photometry of the pulsating Herbig Ae star HD 142666 obtained in two consecutive years with the MOST (Microvariability & Oscilations of STars) satellite. Aims. Previously, only a single pulsation period was known for HD 142666. The MOST photometry reveals that HD 142666 is multiperiodic. However, the unique identification of pulsation frequencies is complicated by the presence of irregular variability caused by the star’s circumstellar dust disk. The two light curves obtained with MOST in 2006 and 2007 provided data of unprecedented quality to study the pulsations in HD 142666 and also to monitor the circumstellar variability. Methods. Frequency analysis was performed using the routine sigspec and the results from the 2006 and 2007 campaigns were then compared to each other with the software cinderella to identify frequencies common to both light curves. The correlated frequencies were then submitted to an asteroseismic analysis. Results. We attribute 12 frequencies to pulsation. Model fits to the three frequencies with the highest amplitudes lie well outside the uncertainty box for the star’s position in the HR diagram based on published values. Some of the frequencies appear to be rotationally split modes. Conclusions. The models suggest that either (1) the published estimate of the luminosity of HD 142666, based on a relation between circumstellar disk radius and stellar luminosity, is too high and/or (2) additional physics such as mass accretion may be needed in our models to accurately fit both the observed frequencies and HD 142666’s position in the HR diagram.