Miracle-dz/UniFAR-FTUs huggingface dataset:
Dynamics of laser-induced phase switching in GeTe films

Phase switching in GeTe thin films (grown using a modified metal organic chemical vapor deposition system) upon pulsed femtosecond and nanosecond laser irradiation has been studied. Two in situ methods, i.e., optical microscopy and real-time reflectivity measurements, have been used in order to compare the optical response before and after phase change and to follow the phase change dynamics with a time resolution close to 400 ps. The results show that cycling is possible under irradiation with both fs and ns pulses using single pulses for amorphization and multiple pulses for crystallization. The use of ns pulses favors the crystalline-to-amorphous phase transformation, with a characteristic transformation time of ∼15 ns. The presence of the liquid phase was identified and temporally resolved, featuring a well-defined transient reflectivity state, in between those of the crystalline and amorphous phases. We have also studied the role of material configuration in the phase change dynamics and the mechanis.
Multiscale Variability of the Atmospheric Boundary Layer during DYNAMO

AbstractProperties of the atmospheric boundary layer (ABL) over the central Indian Ocean are investigated using sounding data obtained during the Dynamics of the MJO (DYNAMO) field campaign in 2011/12. Observations from Gan Island on Addu Atoll, the R/V Revelle, and Male in the Maldives are used to determine the frequency of well-mixed layers and their mean thermodynamic and wind profiles. Well-mixed boundary layers or mixed layers were observed 68% of the time from the three sites, ranging from ~100-m depth in recovering convective downdraft wakes to ~925 m in undisturbed conditions, with a mean depth of 508 m. At Revelle, the site most representative of the open ocean, the ABL displayed a distinct signal of modulation by the October and November MJOs, with mixed-layer depths gradually increasing through the suppressed phases as the sea surface temperature (SST) increased leading up to the active phases, followed by frequent ABL stabilization and shallow mixed layers in recovering wakes. A distinct diurn.
Rewiring stabilizer codes

We present an algorithm for manipulating quantum information via a sequence of projective measurements. We frame this manipulation in the language of stabilizer codes: a quantum computation approach in which errors are prevented and corrected in part by repeatedly measuring redundant degrees of freedom. We show how to construct a set of projective measurements which will map between two arbitrary stabilizer codes. We show that this process preserves all quantum information. It can be used to implement Clifford gates, braid extrinsic defects, or move between codes in which different operations are natural.
An undergraduate collaborative team model to engage nursing students in research

Purpose: Student-faculty collaboration on research is an effective model to engage undergraduate students in the research process outside the traditional curriculum. Using this model, a student-faculty team developed a longitudinal study about college students’ alcohol use behaviors and implemented an intervention to influence the culture of drinking on campus. Methods: A longitudinal design was used to assess drinking behaviors and evaluate the effect of a mass media campaign with social norm messages and alcohol education. Undergraduate students on a faith-based, Midwestern campus completed baseline (N = 1,095) and post-intervention (N = 1,011) electronic surveys. Results: In addition to helping students learn about and develop enthusiasm for research, this project had an impact on the drinking culture on campus. Findings showed 88% of students observed media campaign messages with 82% viewing the printed posters, 47% viewing the outdoor displays, and 25% viewing messages on social media. There was a significant change in binge drinking from the pre- (72%) to post-intervention (40%) surveys. Conclusions: Collaborative undergraduate research teams are an effective model to help students learn how to carry out research and develop interest and enthusiasm for the process. The outcomes of the project demonstrated interventions were effective at influencing the drinking culture on campus. The development of a research program outside the required curriculum can be a successful strategy to engage students in all phases of the research process, increase enthusiasm for research, and enhance health care outcomes in various settings.
Therapeutic competence of dried garlic powder (Allium sativum) on biochemical parameters in lead (Pb) exposed broiler chickens

The study was conducted to assess the therapeutic competence of garlic (Allium sativum) in lead (Pb) exposed chickens. The experimental birds (n=350) were grouped into T0 (as control), T1, T2, T3 and T4. The birds of group T1 was provided with lead acetate at 100 mg/kg body weight. Group T2 had lead acetate at 100 mg/kg b.wt. + 1% garlic supplement, whereas group T3 was fed with lead acetate at 100 mg/kg b.wt. + 2% garlic supplement, and group T4 had lead acetate at 100 mg/kg b.wt. + 4% garlic supplement. The mean values (mg/dL) of uric acid, blood urea nitrogen, creatinine, cholesterol, triglycerides, low density lipoprotein, high density lipoprotein, and blood glucose in the birds of group T1 were significantly increased (p<0.01) on day 42 of post-treatment. Elevation of these parameters was suggestive for the pathological involvement of different organs like liver, kidney, muscles. Statistical analysis of variance indicated that lead acetate at 100 mg/kg b.wt. + 2% garlic supplement (T3) resulted significant (p<0.01) ameliorative effect on the biochemical parameters as compared to the group T2 and T4. In conclusion, potency of garlic in reversion of the values of the biochemical properties in Pb exposed chickens was close to the normal levels of the values. http://dx.doi. org/10.5455/javar.2014. a34
Spoofing Deep Face Recognition with Custom Silicone Masks

We investigate the vulnerability of convolutional neural network (CNN) based face-recognition (FR) systems to presentation attacks (PA) performed using custom-made silicone masks. Previous works have studied the vulnerability of CNN-FR systems to 2D PAs such as print-attacks, or digital- video replay attacks, and to rigid 3D masks. This is the first study to consider PAs performed using custom-made flexible silicone masks. Before embarking on research on detecting a new variety of PA, it is important to estimate the seriousness of the threat posed by the type of PA. In this work we demonstrate that PAs using custom silicone masks do pose a serious threat to state-of-the-art FR systems. Using a new dataset based on six custom silicone masks, we show that the vulnerability of each FR system in this study is at least 10 times higher than its false match rate. We also propose a simple but effective presentation attack detection method, based on a low-cost thermal camera.
Squamous Cell Carcinoma of Oral Cavity: Changing Trends

Objective: The aim of this study was to evaluate the incidence of squamous cell carcinoma in the oral cavity, its risk factors, site, and age of occurrence. Material and Methods: One hundred and nine cases of squamous cell carcinoma involving the oral cavity were retrieved from the records of Regional Cancer Centre, Benghazi and were analysed. Results and Conclusion: The age range was 11- 94 years with a male- female ratio 1.9- 1. The tongue (30.2 %) was the most common site of occurrence. Tobacco was found as a risk factor in male patients above 40 years old, however, no risk factors were found in other patients. Due to the changing trends of cancer pattern and associated risk factors, we emphasize the need for an exhaustive evaluation to understand the biology and the role of non conventional risk factors.
Me, myself and I:Non-collaborative customer behavior in service outsourcing – the key role of outcome orientation and outcome attributability

This research focuses on the role of customer behavior in service outsourcing relationships that are governed by outcome-oriented contracts. It aims to explain how non-collaborative customer behavior impedes the effectiveness of outcome-oriented contracts to align the goals and incentives of the customer and service provider, and leads to service provider opportunism. Nine hypotheses are developed regarding customer behavior and the reaction of the service provider to this. These are tested using structural equation modelling with data from 213 service outsourcing relationships. Outcome-orientated contracts in service outsourcing may have unintended consequences because they create value attribution ambiguity. This ambiguity induces non-collaborative customer behavior, which, in turn, results in service provider opportunism. This reveals a paradox, where customer behavior aimed at curbing service provider opportunism instead induces such opportunism. This chain of effects can be counteracted by increased outcome attributability, which reduces the ambiguity and, thus, the motivation for non-collaborative customer behavior. This research extends the existing literature by stressing that non-collaborative customer behavior is a key reason why outcome-oriented contracts fail in effectively governing outsourcing relationships, and that this can be counteracted by increased outcome attributability.
Home management of malaria among caregivers of under-five children in Owo , Ondo State , Nigeria

Introduction: Home management of fever by caregivers is particularly relevant for ensuring effective care to under-five children in Sub-Saharan countries with high-transmission of malaria like Nigeria. Our study aimed to assess home management of fever among mothers and other caregivers of underfive children attending Federal Medical Centre in Owo, Ondo State, Nigeria. Methods: A descriptive, cross-sectional hospital-based study was carried out. A systematic random sampling technique was used to recruit participants (mothers and other caregivers). A structured interviewer administered questionnaire was used. Clinical findings and malaria test were performed on children using standard methods. Data were analyzed with SPSS version 15. Results: Prevalence of home treatment of fever was 98.4%. Most of the caregivers bought antifever drugs from patent medicine shops and only 11.9 % of them got a prescription drug from pharmacies. Despite good knowledge about causes of malaria by caregivers (72.6%) and a prompt medical treatment within 24 h of fever onset (84.2%), many of their children were treated with only paracetamol (45%) and, therefore, they presented to the hospital febrile (61.8%), tachycardic (63.7%), and tachypnoic (83.9%). Almost all of the children were diagnosed with malaria (98%) associated with some types of complication such as convulsion (29.6%) and anaemia (52.7%). Chi square test showed a significant (P < 0.005) difference between treatment modality (inpatient versus outpatient) with regards to educational level, type of caregivers, place of domicile, use of antimalarial in combination with paracetamol, and presence of complications. Discussion and Conclusion: In our study, home management of malaria by caregivers of under-five children was ineffective. Indeed, the effectiveness of home management of malaria depends not only on the early diagnosis, but also on a prompt and appropriate treatment. Therefore, proper health education programmes on this disease should be implemented among caregivers of under-five children. Affiliations:
Influence of extraction procedure and sample preparation on the bioactive compositions observed from the extract of the of Pandan amaryllifolius

Background: Successful extraction of bioactive compounds from p lant material depends largely on the type of solven t used. However, extraction procedure and sample preparation are oft en overlooked. The influence of drying and extracti on methods on yield and composition of Solanum melongena and Pandan amaryllifolius the effects of substantial variations in the extrac tion techniques and solvents on observed bioactive ompounds of Pandan amaryllifolius extracts. Methods: Three different methods of extraction (Extraction b y Soxhlet Extractor, extraction by soaking pulverized plant material and extraction following drying of the plant in liquid nitrogen) and three d if study. The influence of sample preparation on the b ioactive compounds of Methanol was observed to yield significantly higher ( chloroform and ethanol for S. melongena while chloroform was observed to yield significantl y higher crude extract and percentage of yields for Pandan amaryllifolius. Similarly, high content of the bioactive compounds of detected with methanol compared with chloroform and ethanol in terms of dry weight and percentage yiel d. > 0.05) occurred between type of solvent and extraction of methods for both plant in terms of influencing the yield of crude extract . However, based on the results of the phytochemical screening and UV therefore rec ommended that it be taken into consideration in pre paring for crude extracts from leave extract.
Evaluating Possible Methods and Approaches for Registering of Electromagnetic Waves Emitted from the Human Body

This paper presents the results of evaluation of possible biophysical methods and approaches for registering various non-ionizing radiation (NIR) wave types of the human body in the electromagnetic range. Many types of NIR (electromagnetic waves, infrared radiation, thermo radiation, bioluminescence) emitted from the human body were reviewed. In particular the results of spontaneous biophoton emission and delayed luminescence from the human body are submitted along with i nfrared thermography (IRT) results. It was shown that 1 cm 2 of skin generally emits ~85 photones for 1s. The intensity of biophoton emission ranges from 10 ? 19 to 10 ? 16 W/cm 2 (approx. ~1–1000 photons . cm -2. s -1 ). The specific photon emission from part of the human thumb was detected as a spectrum of various colours with the method of Color coronal spectral analysis on a device with an electrode made ? of polyethylene terephthalate (PET hostafan) with applied electric voltage of 15 kV, electric impulse duration 10 ms, and electric current frequency 15 kHz. It was established that photons corresponding to a red color emission of the visible electromagnetic spectrum have energy at 1.82 ? V. The orange color of the visible electromagnetic spectrum has energy at 2.05, yellow – 2.14, blue-green (cyan) – 2.43, blue – 2.64, and violet – 3.03 eV. The reliable result measurement norm was at E ? 2.53 eV, while the spectral range of the emission was within 380–495 nm and 570–750 nm±5 nm. Some important physical characteristics were also demonstrated (energy of hydrogen bonds, wetting angle, surface tension) of water by the methods of non-equilibrium energy (NES) and differential non-equilibrium energy (DNES) spectrum of water, that helps understand in general how electromagnetic radiation interacts with water and establishes the structural alterations of water. Keywords: electromagnetic waves, infrared radiation, thermo radiation, bioluminescence, color coronal spectral analysis, NES, DNES
A Local Approximation Approach for Processing Time-Evolving Graphs

To efficiently process time-evolving graphs where new vertices and edges are inserted over time, an incremental computing model, which processes the newly-constructed graph based on the results of the computation on the outdated graph, is widely adopted in distributed time-evolving graph computing systems. In this paper, we first experimentally study how the results of the graph computation on the local graph structure can approximate the results of the graph computation on the complete graph structure in distributed environments. Then, we develop an optimization approach to reduce the response time in bulk synchronous parallel (BSP)-based incremental computing systems by processing time-evolving graphs on the local graph structure instead of on the complete graph structure. We have evaluated our optimization approach using the graph algorithms single-source shortest path (SSSP) and PageRankon the Amazon Elastic Compute Cloud(EC2), a central part of Amazon.com’s cloud-computing platform, with different scales of graph datasets. The experimental results demonstrate that the local approximation approach can reduce the response time for the SSSP algorithm by 22% and reduce the response time for the PageRank algorithm by 7% on average compared to the existing incremental computing framework of GraphTau.
Node, Motif and Subgraph: Leveraging Network Functional Blocks Through Structural Convolution

Networks or graphs provide a natural and generic way for modeling rich structured data. Recent research on graph analysis has been focused on representation learning, of which the goal is to encode the network structures into distributed embedding vectors, so as to enable various downstream applications through off-the-shelf machine learning. However, existing methods mostly focus on node-level embedding, which is insufficient for subgraph analysis. Moreover, their leverage of network structures through path sampling or neighborhood preserving is implicit and coarse. Network motifs allow graph analysis in a finer granularity, but existing methods based on motif matching are limited to enumerated simple motifs and do not leverage node labels and supervision. In this paper, we develop NEST, a novel hierarchical network embedding method combining motif filtering and convolutional neural networks. Motif-based filtering enables NEST to capture exact small structures within networks, and convolution over the filtered embedding allows it to fully explore complex substructures and their combinations. NEST can be trivially applied to any domain and provide insight into particular network functional blocks. Extensive experiments on protein function prediction, drug toxicity prediction and social network community identification have demonstrated its effectiveness and efficiency.
Flows and dynamos in a model of stellar radiative zones

Stellar radiative zones are typically assumed to be motionless in standard models of stellar structure but there is sound theoretical and observational evidence that this cannot be the case. We investigate by direct numerical simulations a three-dimensional and time-dependent model of stellar radiation zones consisting of an electrically conductive and stably stratified anelastic fluid confined to a rotating spherical shell and driven by a baroclinic torque. As the baroclinic driving is gradually increased a sequence of transitions from an axisymmetric and equatorially symmetric time-independent flow to flows with a strong poloidal component and lesser symmetry are found. It is shown that all flow regimes characterised by significant non-axisymmetric components are capable of generating a self-sustained magnetic field. As the value of the Prandtl number is decreased and the value of the Ekman number is decreased, flows become strongly time dependent with progressively complex spatial structure and dynamos can be generated at lower values of the magnetic Prandtl number.
Exploring a modular adaptive metastructure concept inspired by muscle’s cross-bridge

The multifunctionality and versatility of skeletal muscle is a worthy inspiration towards the development of engineered adaptive structures and material systems. Recent mechanical modeling of muscle suggests that some of muscle’s intriguing macroscale, passive adaptivity results from the assembly of nanoscale, cross-bridge constituents that maintain multiple metastable configurations. Inspired by the new observations, this research explores a concept of creating modular, engineered structures from the assembly of mechanical, metastable modules, defined as modules that exhibit coexistent metastable states. The proposed integrated systems are termed metastructures: modular, engineered structures exhibiting unprecedented characteristics resulting from a synergy of the constituents. Analytical and experimental results demonstrate that when modular metastructures are prescribed a global shape/topology, the systems may yield significant and valuable properties adaptivity including variation in reaction force magnitude and direction, numerous globally stable topologies, and orders of magnitude change in stiffness. The influences of important parameters on tailoring the displacement range of coexistent metastable states are investigated to provide insight of how the assembly strategy governs the intriguing versatility and functionality which may be harnessed.
iGen 0.1: the automated generation of a parameterisation of entrainment in marine stratocumulus

Abstract. In a previous paper we described a new technique for automatically generating parameterisations using a program called iGen. iGen generates parameterisations by analysing the source code of a~high resolution model that resolves the physics to be parameterised. In order to demonstrate that this technique scales up to deal with models of realistic complexity we have used iGen to generate a parameterisation of entrainment in marine stratocumulus. We describe how iGen was used to analyse the source code of an eddy resolving model (ERM) and generate a parameterisation of entrainment velocity in marine stratocumulus in terms of the large-scale state of the boundary layer. The parameterisation was tested against results from the DYCOMS-II intercomparison of ERM models and iGen's parameterisation of mean entrainment velocity was found to be 5.27 × 10−3 ± 0.62 × 10−3 m s−1 compared to 5.2 × 10−3 ± 0.8 × 10−3 m s−1 for the DYCOMS-II ensemble of large eddy simulation (LES) models.
Diversification of the greater hydrophilines clade of giant water scavenger beetles dated back to the Middle Eocene (Coleoptera : Hydrophilidae : Hydrophilina)

Fossil representatives of the hydrophilid genera Hydrochara Berthold, 1827, Hydrobiomorpha Blackburn, 1888 and Hydrophilus Geoffroy, 1762 were recorded at the lower Middle Eocene locality Grube Messel in Germany. Four morphospecies were recognised, including Hydrobiomorpha eopalpalis, sp. nov. showing sexually dimorphic maxillary palpomere 2 unknown in any recent or fossil species of the genus. These fossils are the oldest known records of the mentioned genera and indicate a minimum age of 47 million years for the divergence of the Hydrobiomorpha and Hydrophilus clades. Based on these data, we assume that the diversification of the ‘greater hydrophilines’ clade predated the lower Middle Eocene. The fossil record of the subtribe Hydrophilina is briefly reviewed, the reasons of the scarcity or absence of some genera in the fossil record are discussed, and the paleoenviromental significance of the presented fossils is discussed.
Cross-Group Knowledge Transfer and Capacity-Building for the Poor: A Case Study of Tourism Targeted Poverty Alleviation in Guangdong Province, China

This paper mainly explored the strategies of capacity-building for the poor in the early stage of tourism development in poverty-stricken areas. Given the requirements of tourism poverty alleviation, the capacity-building strategies during the transition period need to focus on non-school-age and impoverished population, and integrate both explicit and tacit knowledge, as well as absorb foreign advanced knowledge adequately, while some limitations still exist in the literatures now. In this paper, we analyzed the cross-group knowledge transfer process of “migrant workers-local poor people” to explore the capacity-building strategies that meet various requirements during the transitional period for the poor.