Miracle-dz/UniFAR-FTUs huggingface dataset:
On-Demand Service-Oriented MDA Approach for SaaS and Enterprise Mashup Application Development

As one of the fundamental technologies in cloud computing, services computing is playing a critical role to enable provisioning of software as a service (SaaS). However, how to effectively and efficiently develop and deploy personalized SaaS and enterprise mashups on the cloud platforms remain a big research challenge. SaaS developers and researchers may adopt certain strategies by leveraging existing services available in the cloud and using model driven approach. They can compose and design new value-added services as on-demand SaaS and enterprise mashup applications deployed on cloud platform. In this paper, we propose an On-Demand Service-Oriented Model Driven Architecture (ODSOMDA) approach that involves adding Service Oriented Architecture (SOA) elements into MDA to realize the model transformation based on a Role&Goal-Process-Service (RGPS) meta-model. The meta-level analysis of MDA is applied to facilitate construction of SaaS and mashup applications through three-layer automatic (semi-automatic) model transformation. Finally, we develop an enterprise mashup prototype as a practical case study to prove the effectiveness of the proposed approach.
Adaptive and automated online assessment evaluation system

E-learning systems has gain a greater attraction in the field of using online educational resources. The learner evaluation through assessment activities are taking place in these e-learning systems in different formats. Evaluation of subjective or text based answers has been a hurdle in the development of e-learning systems since a very long time. Since current systems target on evaluating MCQ questions, there is no proper way to evaluate short and essay type questions. They also do not target on providing proper learner feedback immediately with the presence of reliable results. This research study has based on developing a system to optimize the evaluation of text based answers automatically and to overcome the issues which has not been addressed by the existing systems. In this research it has been addressed structured and essay type questions. By referencing to prior work, this project solution has come up with a total solution where the tutors can add questions to the question-bank, creating assignments and get the final scores automatically. The learners are facilitated in providing the answers for the assessments and get feedback immediately. The system provides a platform to academic institutes to enhance their processes in assignment evaluation.
Enhanced distributed MPC design for efficiency utility of autonomous multi-microgrids

In this paper, a load management is presented for autonomous multi-microgrids, who consist of multiple Renewable Energy Sources (RESs), energy storages and smart loads. In particular, a new energy mismatch balance and optimal distributed scheduling problem are formulated to achieve the supply-demand match in system-level. By coordinating with each other, the surplus renewable energy among multi-microgrids can be distributed to the corresponding microgrid who requests for extra supply for the loads. Moreover, the enhanced Distributed Model Predictive Control (DMPC) strategy is designed to guarantee the RESs efficiency and necessary demand response. Our simulation results demonstrate the effectiveness of our proposed method.
Efficacy of omega-3 highly unsaturated fatty acids in the treatment of depression

Background Trials evaluating efficacy of omega-3 highly unsaturated fatty acids (HUFAs) in major depressive disorder report discrepant findings. Aims To establish the reasons underlying inconsistent findings among randomised controlled trials (RCTs) of omega-3 HUFAs for depression and to assess implications for further trials. Method A systematic bibliographic search of double-blind RCTs was conducted between January 1980 and July 2014 and an exploratory hypothesis-testing meta-analysis performed in 35 RCTs including 6665 participants receiving omega-3 HUFAs and 4373 participants receiving placebo. Results Among participants with diagnosed depression, eicosapentaenoic acid (EPA)-predominant formulations (>50% EPA) demonstrated clinical benefits compared with placebo (Hedge's G = 0.61, P<0.001) whereas docosahexaenoic acid (DHA)-predominant formulations (>50% DHA) did not. EPA failed to prevent depressive symptoms among populations not diagnosed for depression. Conclusions Further RCTs should be conducted on study populations with diagnosed or clinically significant depression of adequate duration using EPA-predominant omega-3 HUFA formulations.
Explaining Racial/Ethnic Disparities in Use of High-Volume Hospitals

Racial/ethnic minorities are less likely to use higher-quality hospitals than whites. We propose that a higher level of information-related complexity in their local hospital environments compounds the effects of discrimination and more limited access to services, contributing to racial/ethnic disparities in hospital use. While minorities live closer than whites to high-volume hospitals, minorities also face greater choice complexity and live in neighborhoods with lower levels of medical experience. Our empirical results reveal that it is generally the overall context associated with proximity, choice complexity, and local experience, rather than differential sensitivity to these factors, that provides a partial explanation of the disparity gap in high-volume hospital use.
Comparison of Hydroxyethyl Starch 6% and Crystalloids for Preloading in Elective Caesarean Section Under Spinal Anesthesia

Background: Although controversial, many studies have shown effectiveness of colloid loading as a substitute for crystalloids on reducing the incidence of hypotension in spinal anesthesia. This study was conducted to compare the effects of three intravenous fluid regimens on hemodynamic changes following spinal anesthesia in cesarean section. The regimens included 6% Hydroxyethylstarch 130/0.4 (HES) as a colloid and two crystalloids (lactated ringer’s solution and sodium chloride 0.9%). Material & Method: In a double-blind clinical trial, 90 otherwise healthy parturients candidate of elective caesarean section were randomly allocated to receive lactated ringer’s solution (1000 ml), sodium chloride 0.9% (1000 ml) or HES (7.5 mL/Kg) as preloading before spinal anesthesia. Hemodynamic parameters including blood pressure and heart rate, umbilical cord blood pH and the neonatal Apgar score were compared among the three groups. Results: There was no difference in the basic hemodynamic measurements among the three groups. The incidence of hypotension and required dose of ephedrine was lower in HES group (p=0.008). There was no significant difference in umbilical cord blood PH or Apgar scores among intervention groups. Conclusion: Preloading with HES is more effective than crystalloids in prevention hypotension after spinal anesthesia without significant difference in Apgar score and umblical cord blood pH.
Angular and spectral light scattering from complex multidielectric coatings

Due to the improvement of deposition technologies and polishing techniques, light scattering has been considerably reduced in optical coatings these last decades, with the result of high quality dense optical filters with minimal losses. However such improvements coupled with modern monitoring techniques have also allowed designing and producing more complex coatings with layer numbers exceeding several hundred in some situations. Within this framework light scattering must again be revisited and analysed in detail, including global loss levels together with angular and spectral analysis. This paper is devoted to the optical balance of sophisticated components for Earth Observation, where the same scene is observed simultaneously in several adjacent wavebands. Self-blocking multilayer stacks are involved to eliminate out-of band harmonics in the instrument but the filter performances are degraded due to an increase of cross talk originating from light scattering. To address this problem we use the theories of light scattering from surface roughness and bulk heterogeneity, which allows to quantity cross-talk levels and choose more adequate filters. A special emphasis is given to the case of hyperspectral filters assemblies located in the focal plane for image filtering.
Dosing system for the nanolitre range, fabricated with the AMANDA process

We present a dosing system, which consists of four microvalves (presented by Rogge et al in the Proceedings of Eurosensors XVI, Prague, 2002, pp 109–110) for controlling and a movable membrane for flow measurement that divides a cavity into two chambers. The flow rate is determined from the straining of the membrane caused by the entering fluid. The displaced volume is detected by strain gauges integrated in the membrane. The overall dimensions of the membrane and the entire system are 2 mm and 10 × 50 × 6 mm3, respectively. A simple control was coded for dosing a certain amount of volume. This simple system has already achieved an accuracy of about 10%. The dosing system is manufactured with the AMANDA process, which allows for low-cost production of microcomponents from polymers.
New microbleed after blood–brain barrier leakage in intracerebral haemorrhage

Cerebral microbleeds are increasingly recognised as biomarkers of small vessel disease. Several preclinical and clinical studies have suggested that chronic disruption of the blood–brain barrier is one of the mechanisms for the development of cerebral microbleeds. A 51-year-old man experienced two left parieto-occipital lobar intracerebral haemorrhages (ICHs) in the timespan of 2 years. Multiple microbleeds surrounding the two haemorrhages were found on MRI, but not at location distant from the haemorrhages. Ten months after the last haemorrhage, an MRI demonstrated a right occipital focus of contrast enhancement. Twenty months after the last ICH, a new cerebral microbleed had developed exactly at the location of the earlier contrast enhancement. This case demonstrates that blood–brain barrier disruption may be an important factor preceding the development of cerebral microbleeds.
Potential for landscape-scale positive interactions among tropical marine ecosystems

Fluxes of energy, materials and organisms among ecosystems are consequences of their openness to exchange and lead to the consideration of reciprocal connections among adjacent ecosystems. Reciprocal connectivity may have implications for ecosystem functioning and manage- ment but it is generally studied only for a single factor, rather than for multiple factors. We examined the extent to which these fluxes may apply at the landscape scale for 3 ecosystems: mangrove forests, seagrass beds and coral reefs. From a literature review and analysis, we semi- quantitatively assessed fluxes based on attenuation of wave height and exchanges of sediments, nutrients and al- givores. We found that coral reefs and seagrass beds significantly attenuated wave height and that this effect depended on specific physical conditions. In the case of coral reefs, the attenuation ca- pacity depended on the section of the reef the wave breached, whilst for seagrass beds, we hypoth- esised that the density of the plants was the controlling factor. Mangrove forests' ability to reduce sediment fluxes was related to the mangrove forest area. Seagrass plants have a capacity to decrease sediments in the water column. Both mangrove forests and seagrass beds retained nutri- ents within the ecosystems, which was a positive interaction. Isolated reefs showed a decrease (30 to 95%) in algivore biomass compared to situations where the 3 habitats were in proximity to each other. The findings show that there is potential for reciprocal connections among coastal eco- systems. Our results indicate that these exchanges at the ecosystem scale can be placed into the context of facilitation in the field of community ecology. Future research should focus on which natural and anthropogenic factors determine reciprocal facilitation between these ecosystems and determine how ecosystem-based management can be improved with this knowledge. The consid- erable potential for reciprocal facilitation implies that ecosystem managers may need to place greater emphasis on the landscape scale.
Pricing and Performance Analysis for a System with Diﬀerentiated Services and Customer Choice

We consider a model of a service system with ﬁnite and shared processing capacity and two service classes. Users arrive at the system and select either a high-priority service level where the service requests are processed at a ﬁxed rate, or a low-priority service level where service rate is subject to degradation when the system is congested. A ﬁxed price-per-connection is charged for each service level, and the mean delay in each class class is announced to the users upon arrival. The users, in turn, select the appropriate class of service based on their perceived “cost,” comprised of price and delay-related cost. We demonstrate that the optimal operational mode of this system is in “heavy-traﬃc” if the demand is elastic, and determine the asymptotically optimal price per service grade. In particular, the magnitude of price-premium for high-priority service is seen to be “small. ” Finally, a somewhat surprising feature of the system is that the fraction of users that select each service-level is determined by a “second-order” analysis that hinges on underlying diﬀusion limits.
PREDICT: a trusted framework for sharing data for cyber security research

In this paper, we describe the formatting guidelines for ACM SIG The Protected Repository for Defense of Infrastructure against Cyber Threats (PREDICT) has established a trusted framework for sharing real-world security-related datasets for cyber security research. In establishing PREDICT, a set of key issues for sharing these data has been addressed: providing secure, centralized access to multiple sources of data; assuring confidentiality to protect the privacy of the individuals and the security of the networks from which the data are collected; assuring data integrity to protect access to the data and ensure its proper use; and protecting proprietary information and reducing legal risks. PREDICT continues to address issues in producing and sharing datasets as it enters its second phase of development, providing more controversial data, adding data providers, and initiating international participation.
Tailoring the Optical Properties of Silicon Nanowire Arrays through Strain

A unique supercritical fluid inclusion-phase technique has been developed to embed silicon nanowires, with size monodispersed diameters, within the pores of mesoporous silica hosts. These nanocomposite materials displayed quite intense room temperature ultraviolet and visible photoluminescence (PL), and the emission wavelength maximum was found to be dependent on the diameter of the encased nanowires. This previously unobserved wavelength dependence of the ultraviolet PL with decreasing nanowire size is explained using a continuum strain model resulting from confinement of the wires within the host lattice.
The many ways tissue phagocytes respond to dying cells

Apoptosis is an important component of normal tissue physiology, and the prompt removal of apoptotic cells is equally essential to avoid the undesirable consequences of their accumulation and disintegration. Professional phagocytes are highly specialized for engulfing apoptotic cells. The recent ability to track cells that have undergone apoptosis in situ has revealed a division of labor among the tissue resident phagocytes that sample them. Macrophages are uniquely programmed to process internalized apoptotic cell‐derived fatty acids, cholesterol and nucleotides, as a reflection of their dominant role in clearing the bulk of apoptotic cells. Dendritic cells carry apoptotic cells to lymph nodes where they signal the emergence and expansion of highly suppressive regulatory CD4 T cells. A broad suppression of inflammation is executed through distinct phagocyte‐specific mechanisms. A clever induction of negative regulatory nodes is notable in dendritic cells serving to simultaneously shut down multiple pathways of inflammation. Several of the genes and pathways modulated in phagocytes in response to apoptotic cells have been linked to chronic inflammatory and autoimmune diseases such as atherosclerosis, inflammatory bowel disease and systemic lupus erythematosus. Our collective understanding of old and new phagocyte functions after apoptotic cell phagocytosis demonstrates the enormity of ways to mediate immune suppression and enforce tissue homeostasis.
3D point cloud cluster analysis based on principal component analysis of normal-vectors

Technical demands for extraction of significant components from spatial models are increasing as 3D sensors and their application technology has been developed and popularized. In this paper, we propose the 3D point cloud cluster analysis based on the principal component analysis(PCA) of normal-vectors. The distribution of normal vectors depends on a 3D surface shape within the local neighborhood. We discussed the PCA of the distribution of normal vectors to the point cloud. The results of the experiment show that our method could classify a local point cloud as a plane, a boundary and a vertex.
The progression of pathology in Parkinson's disease

To identify the progression of pathology over the entire course of Parkinson's disease, we longitudinally followed a clinical cohort to autopsy and identified three clinicopathological phenotypes that progress at different rates. Typical Parkinson's disease has an initial rapid loss of midbrain dopamine neurons with a slow progression of Lewy body infiltration into the brain (over decades). Dementia intervenes late when Lewy bodies invade the neocortex. Older onset patients (> 70 years old) dement earlier and have much shorter disease durations. Paradoxically, they have far more α‐synuclein‐containing Lewy bodies throughout the brain, and many also have additional age‐related plaque pathology. In contrast, dementia with Lewy bodies has the shortest disease course, with substantive amounts of Lewy bodies and Alzheimer‐type pathologies infiltrating the brain. These data suggest that two age‐related factors influence pathological progression in Parkinson's disease—the age at symptom onset and the degree and type of age‐related Alzheimer‐type pathology.
RHEED study of oxygen ion implantation effects on GaAs surface

The GaAs(001) surfaces were submitted to 10 - 100 keV oxygen ion bombardment at room temperature and then they were thermally annealed in order to restore the initial topography. The present paper is motivated by a desire to correlate the electronic properties of GaAs crystal to its structure. It is the main purpose of this work to investigate the nature of damage conducted by the implanted oxygen ion and to show the changes in the structure of GaAS(001) surface resulting from surface disorder due to ion implantation.
Freezing of Gait (FoG) detection for Parkinson Disease

Freezing of Gait (FOG) is a symptom in Parkinson's Disease (PD) patients that negatively impacts their productivity and quality of life. There is a need for external cues to aid PD patients to overcome this freezing phenomenon. Integrating biofeedback with monitoring devices will improve their self-efficacy in going about their daily activities. This paper presents a real-time PD monitoring and biofeedback system using low-cost wearable sensors (e.g. accelerometers, gyroscope and magnetic compass). The gait monitoring system that is able to process real-time captured sensory data and detect FOG, then triggering audio and vibration biofeedback to prevent or reduce freezing. The system's FOG detection algorithm uses time frequency analysis and kinematic parameters from gait signals. The system is easy to use, low cost and maximises battery life. Experimental trial runs on PD patients demonstrate the feasibility of the proposed system.
STUDY ON RUST LAYERS ON STEEL IN DIFFERENT MARINE CORROSION ZONE

为在 A3 碳钢和低合金 16Mn 钢上形成的腐蚀产品的 Mossbauer 系列在 Chengdao 海区域暴露了因为由连接电镀物品的方法的 2 年是坚定的。 在四个海洋的腐蚀地区的二钢上的锈层的阶段作文和内容被分析并且学习。 尽管二钢的阶段作文是不同的，他们的主要阶段是尾 - FeOOH。 在锈层的 FeOOH 和 Fe3O4 的不同内容在内部锈层说明了那 FeOOH 作为在湿 / 干燥的周期状况下面加速钢的腐蚀率的氧化剂参予了 cathodic 过程。 而且为在 16Mn 钢的合金元素，有简单作文和好、靠近的质地的锈层形成了降低低合金钢的腐蚀率的好障碍层。
The product of two κ-μ variates and the κ-μ/κ-μ composite fading model

In this paper, we initially consider the product of two independent and non-identically distributed κ-μ variates, and obtain its probability density function (PDF) in novel analytical form. Following from this, the PDF for the κ-μ/κ-μ composite fading model is then deduced. Monte-Carlo simulations are performed to verify the derived results. It is worth highlighting that both sets of expressions can be reduced to a number of double and composite fading scenarios such as the double Rice, double Nakagami-m, κ-μ/Nakagami-m, and Rice/Nakagami-m. Finally, we illustrate the usefulness of the obtained formulations by characterizing the shadowed fading encountered in body area networks, device-to-device and vehicle-to-vehicle communication channels. To this end, it is shown that the κ-μ/κ-μ composite fading model provides an excellent fit to the measurement data.
Validity and Reliability of an On-Court Fitness Test for Assessing and Monitoring Aerobic Fitness in Squash

Abstract James, C, Tenllado Vallejo, F, Kantebeen, M, and Farra, S. Validity and reliability of an on-court fitness test for assessing and monitoring aerobic fitness in squash. J Strength Cond Res 33(5): 1400–1407, 2019—Current on-court assessments of aerobic fitness in squash are not designed to yield a wealth of physiological data. Moreover, tests may require complex computer equipment or involve simulated racket strokes, which are difficult to standardize at high intensities. This study investigated the validity and reliability of a squash-specific fitness test which can yield both a standalone performance score, as well as pertinent physiological markers such as VO2max, the lactate turnpoint and oxygen cost, in a sport-specific environment. Eight national squash players completed 3 tests in a counterbalanced order: an incremental laboratory treadmill test (LAB) and 2 on-court fitness tests (STs) that involved repeated shuttle runs at increasing speeds. VO2max during ST was agreeable with LAB (typical error [TE] = 3.3 ml·kg−1·min−1, r = 0.79). The mean bias between LAB and ST was 2.5 ml·kg−1·min−1. There were no differences in maximum heart rate, postexercise blood lactate concentration, or end of test rating of perceived exertion between LAB and ST (p > 0.05). The ST was highly reliable, with 74 (10) laps completed in ST1 and 75 (12) laps in ST2 (mean bias = 1 lap, TE = 3 laps, r = 0.97). Physiological markers were also reliable, including VO2max, (TE = 1.5 ml·kg−1·min−1, r = 0.95), the lap number at 4 mMol−1 (TE = 4 laps, r = 0.77), and average VO2 across the first 4 stages (TE = 0.94 ml·kg−1·min−1, r = 0.95). We observed good agreement between LAB and ST for assessing VO2max and between both on-court trials for assessing test performance and selected physiological markers. Consequently, we recommend this test for monitoring training adaptations and prescribing individualized training in elite squash players.