Miracle-dz/UniFAR-FTUs huggingface dataset:
Gas-liquid two-phase flows in double inlet cyclones for natural gas separation

Abstract The gas-liquid two-phase flow within a double inlet cyclone for natural gas separation was numerically simulated using the discrete phase model. The numerical approach was validated with the experimental data, and the comparison results agreed well with each other. The simulation results showed that the strong swirling flow produced a high centrifugal force to remove the particles from the gas mixture. The larger particles moved downward on the internal surface and were removed due to the outer vortex near the wall. Most of the tiny particles went into the inner vortex zones and escaped from the up-outlet. The swirling flow was concentric due to the design of the double inlet for the cyclonic separator, which greatly improved the separating efficiency. The separating efficiency was greater than 90% with the particle diameter of more than 100 μm.
Black Holes and Quantum Mechanics

We will first show that black holes, generally, thought to be a general relativistic phenomena could also be understood without invoking general relativity at all. (Indeed, Laplace had anticipated these objects.) We start by defining a black hole as an object at the surface of which the escape velocity equals the maximum possible velocity in the universe, namely, the velocity of light. We next use the well-known equation of Keplerian orbits [1]
Spurious Regressions in Time Series with Long Memory

This article studies the asymptotic properties of least squares estimators and related test statistics in some spurious regression models that are generated by stationary or nonstationary fractionally integrated processes. We show that even when the fractionally integrated processes are long-range dependent, the asymptotic distributions of the least squares statistics, after appropriately rescaling and normalizing, are functionals of standard Brownian motions rather than of fractional Brownian motions. Some Monte Carlo simulations are provided to indirectly illustrate the performance of the asymptotic results for finite samples.
Current Practices of Dynamic-Structural Testing in Programming Assessments

Automatic Programming Assessment (or APA) has been known as an important method to automatically mark and grade students’ programming exercises. It has been gaining a lot of attention from many researchers either to emphasize on the aspect of static analysis or dynamic testing (functional and structural testing). To date, not many recent studies attempted to focus on the context of structural testing even though, it is key in the software testing industry. Hence it becomes one of the most critical aspects of testing to be considered. Besides that, current literatures also lack information on APA’s detailed practices. Thus, we conducted a preliminary study to investigate the test adequacy criteria that have been commonly employed in the current practices of programming assessments which are applicable only to dynamic-structural testing. Specifically, this refers to testing that needs a program execution and focuses on the logic coverage of the tested program. In this paper, we reveal the means of conducting the preliminary study and its analysis and findings. From the findings, it has been discovered that most educators are commonly adopting the identified structural code coverage in programming assessments and even have a great leaning towards allowing those criteria to be considered in implementing APA
Evaluation of the quality of natural products for the preparation of chamomile and mint tea in Costa Rica

In this study, the quality and safety of chamomile and mint tea marketed in Costa Rica were evaluated. Physical and chemical analyses, the presence of toxic substances and pathogenic microorganisms were carried out, to determine whether they comply with local and international legislation. The sample taken was 1360 envelopes of chamomile and 400 sachets of mint, of 22 products available in the market. A 70 % compliance was found concerning the regulation of labeling of natural products applied in Costa Rica. About the total ash test, a compliance rate of 82 % was observed. Regarding the absence of foreign matter, at least 66 % of the samples showed some of the following structures: insect parts, small stones, plastic fragments. About the levels of cadmium and mercury were found two chamomile products that exceed the maximum limit suggested for medicinal herbs by the WHO. Regarding the evaluation of the microbiological quality of the samples as a criterion of safety, one product was found that exceeds the limit of aerobic bacteria and a 42 % that exceeds the limit of enterobacteria. In the rest of the tests, the products met the specifications. These results highlight the need for quality control of these natural products since not all meet the criteria of quality and safety. *Corresponding Author Jeimy Blanco Barrantes Instituto de Investigaciones Farmacéuticas, Facultad de Farmacia, Universidad de Costa Rica, 11501-2060 Ciudad Universitaria Rodrigo Facio, San José, Costa Rica; Tel: +506 2511 8338. Article Received on 12 July 2017, Revised on 04 August 2017, Accepted on 25 August 2017 DOI: 10.20959/wjpr201710-9270 8533 World Journal of Pharmaceutical Research SJIF Impact Factor 7.523 Volume 6, Issue 10, 44-55. Research Article ISSN 2277– 7105
One Size Fits All or Tailor-Made? Building Appropriate Certification Systems for Geographical Indications in Southeast Asia

Geographical indications (GIs)—i.e. indications identifying goods originating in a specific place and having quality, characteristics, and reputation attributable to their geographical origin—are developing fast in the Southeast Asian food sector, with a wide range of new products such as Khao Hom Mali and Thung Kula Rong-Hai (fragrant rice), Kampot pepper, or Nuoc Mam Phu Quoc (fish sauce). After concentrating their efforts on registering GIs (to protect the name against counterfeit), GI promoters needed to decide how to control product compliance with GI specifications for specific quality. This paper analyzes the control and certification procedures for GIs in four Southeast Asian countries—Thailand, Vietnam, Cambodia, and Laos—and the challenges faced in building an efficient yet appropriate system of controls in these countries. Influenced by the “gold standard” of certification in place of organic agriculture, finding appropriate GI control systems is one of the dilemmas faced by these countries. The article discusses the main differences between GIs and other agricultural standards—specifications that are unique to each GI, endogenous, and based on local production practices—and the consequences in terms of certification. Indeed, in the case of GIs, other options than private third-party certification could better ensure that GI rules are followed, which may rely on the knowledge producers and connoisseurs have of the product.
Trade Openness, Economic Growth and the Vicissitude of Labor-intensive Industries: The Case of China

Abstract In this paper, we use China’s 1986-2008 data to make an empirical analysis on the interrelationship between trade openness, economic growth and the structural change of labor-intensive industries by using simultaneous equation models and a VAR model. Our empirical study leads to the three conclusions. First, trade openness has accelerated economic growth, though with some negative impact on the development of labor-intensive industries; Second, economic growth has had a positive effect on trade openness, but again negatively impacted the development of labor-intensive industries. Third, the expansion of labor-intensive industries has had negative effects on both trade openness and economic growth. Methodologically we rely on the transformation theory of industrial structure as an analytical framework to empirically study these three paradoxical outcomes. We introduce the three variables: trade openness, economic growth and the change of labor-intensive industries, as dependent as well as independent variables into our empirical models. And then we use technological progress, the share of secondary industries to GDP, total employment and investment ratio as control variables in order to test the robustness of the empirical results. In addition to explaining the factors responsible for changes in labor-intensive export industries we also provide two policy implications: First, labor-intensive industries should be scaled down to improve the efficiency of resources allocation. Second, China should timely transform its industrial structure of the export sectors from the one that is dominated by labor-intensive industries to the one that is dominated by capital (technology)-intensive industries so as to induce the export sectors to move in the direction favorable to the transformation of China’s present outward pattern of economic development.
Stabilized HEB-QCL heterodyne spectrometer at super-terahertz

We report a new experiment on a high-resolution heterodyne spectrometer using a 3.5 THz quantum cascade laser (QCL) as local oscillator (LO) and a superconducting hot electron bolometer (HEB) as mixer by stabilizing both frequency and amplitude of the QCL. The frequency locking of the QCL is demonstrated by using a methanol molecular absorption line, a proportional-integral-derivative (PID) controller, and a direct power detector. We show that the LO locked linewidth can be as narrow as 35 KHz. The LO power to the HEB is also stabilized by means of swing-arm actuator placed in the beam path in combination of a second PID controller.
PRICING OPTION UNDER STOCHASTIC VOLATILITY DOUBLE JUMP MODEL (SVJJ)

Through this paper, we introduce Fourier transform as an alternative approach to pricing option when the underlying asset follows Stochastic Volatility double Jump model (SVJJ). In fact the weakness of the traditional approaches does not depend on closed formula of probability density function which is explicitly unknown under this model. The advantage of Fourier transform technique is that for a wide class of stock price the only thing necessary to evaluate European call is a so called characteristic function since there is one-to-one relation-ship between a p.d. f & ch.f and both of which uniquely determine a probability distribution. For accuracy and validation we implement pricing formulas FFT, Monte Carlo simulation and we compare both of them to the benchmark model BS. AMS Subject Classification: 60H15
Signal-dependent Translation of the Platelet Transcriptome: The Roles of αIIbβ3 Integrin, Fibrinogen and Fibronectin in Platelet de novo Protein Synthesis

Although platelets are anucleate, they do inherit 1500-3000 mRNA transcripts from their megakaryocyte progenitors, in addition to all the machinery essential for protein synthesis; however, there is little understanding why platelets initiate de novo synthesis of these transcripts. Our group demonstrated that fibrinogen (Fg), a ligand of platelet Glycoprotein (GP)IIb-IIIa (αIIbβ3 integrin), is required for platelet P-selectin expression and that engagement of Fg with GPIIb-IIIa is essential for this process. The present study shows that murine platelets incubated with Fg synthesize P-selectin de novo, and this synthesis is blocked by puromycin. A similar effect is also observed when platelets are incubated with fibronectin, another ligand of GPIIb-IIIa. Furthermore, platelets from both ligand- (Fg−/−, von Willebrand factor−/−, apolipoprotein A-IV−/−) and GPIIb-IIIa-deficient mice have altered proteomes. These data suggest an intricate mechanism by which engagement of platelets with their environment triggers signal-dependent translation of the platelet transcriptome, consequently altering the platelet proteome.
Molecular Weight Distribution, Amino Acid and Functional Groups Profile of Gelatin Bovine Split Hide as Influenced by Acid Pre-Treatment

Gelatin is natural substance obtained from the partial hydrolysis of collagen from the skin, bones and connective tissue. This Study aims to weight molecular, amino acids and functional groups profile of gelatin from bovine split hide using a variation of acetic acid concentration as a curing solution. The materials were gelatin from split bovine hide or hide split of flesh part from tanning industry. The materials were divided into three treatments T1, T2 and T3 (curing in 0.1M; 0.3M; 0.5M acetate acid) for 24 hours, then being extracted graded at 60oC, 70oC, 80oC each for 5 hours. Electrophoresis result showed the distribution molecular weight between 25-40 kDa. Amino acid profile of gelatin was similar to the amino acid composition of collagen with a high level of hydroxyproline. The intensity of the absorption of infrared (FTIR) consisted of functional groups O-H, C=O, C=C, C-H, and C-O. The result of amino acid and functional groups profile gelatin from bovine split hide by curing acetate acid concentration of 0.5 M provided the best characteristics of gelatin.
ASSESSMENT OF THE ANTIPROLIFERATIVE POTENTIAL OF Citrullus lanatus (WATER MELON) FRUIT JUICE

Objective: The aim of this study is to examine the antiproliferative potential of Citrullus lanatus fruit juice on rapidly proliferating cells. Method: The study was done using rapidly proliferating seeds of Sorghum bicolor. The mean lengths (mm) of radicle emanating from seeds of all the groups were measured after 24, 48 and 72 hours respectively. Results: The growth of the methotrexate treated seeds radicle was retarded significantly (P<0.05) through-out the study. The rate of inhibition was 58.17, 77.64 and 88.81% after 24, 48 and 72 hours respectively. C. lanatus fruit juice doses of 40 and 60% v/v gave a significant (P<0.05) radicle growth inhibition after 48 and 72 hours. At 40% v/v dose inhibition rate was 46.48 and 74.81%, while at 60% v/v dose inhibition was 52.01 and 79.33% respectively. C. lanatus fruit juice dose of 80% v/v showed a significant (P<0.05) inhibition of seeds radicle throughout the study. The inhibition rate was 71.24, 88.69 and 95.32% after 24, 48 and 72 hours. Conclusion: The study has unveiled the antiproliferative potential of C. lanatus fruit juice. We therefore propose that further studies on its antiproliferative effect should be carried-out on animal models.
A Proposal for Research Framework Based on The Theoretical Analysis and Practical Application of MLQ Questionnaire

Abstract Leadership is a topic that attracts the attention of a large number of scientists and researchers who in their papers examine the issues of effective leadership. During previous research in this area different methodologies were used, but in recent decades one of the most prominent is MLQ questionnaire (Multifactor Leadership Questionnaire - MLQ), which examines three styles of leadership: transformational, transactional and passive leadership. The paper analyses the predominating attitudes in this area, theoretical explanation of MLQ questionnaire components and empirical results of previous applications. Founded on the obtained theoretical basis, the paper suggests future research framework in order to examine implementation of certain leadership styles from the MLQ questionnaire depending on the business environment which can vary from stable to uncertain, as well as their relationship with the achieved level of firm innovativeness. Thus, the aim of this paper is to define research framework that will be applied in a future research on an adequate sample of medium and large companies on the territory of the Republic of Serbia.
Centered Concentration for ADHD Children via Educational Game

—Attention Deficit-Hyperactivity Disorders (ADHD) is a symptom that appears by showing treatment of concentration, hyperactivity and impulsivity. If not paid attention carefully ADHD children will look like other normal children. One of the handling that can be done is to provide educational games by using the application on the gadget. This study will discuss how the effect of educational games in improving concentrations in early childhood will be described by describing 5 children who have ADHD symptoms. The results of observation states that there is an increase in concentration in children after the stimulus given the form of educational games.
The development of cases and adpositions in Latin

It is a well-known fact that in Latin case plays an important role in marking the functional relations of nominal constituents of a clause, much more so than in the Romance daughter languages. Conversely, in the Romance languages adpositions (preand postpositions) are used with a higher frequency. Various explanations can be found for the change that took place, the most prominent among which is of a phonological nature: it is often said that the attrition of the inflexional endings and the ensuing merging of cases brought about the increase in the use of adpositions. In this paper I will examine the adpositional system and try to show that as early as the archaic and classical period the adpositions
An agent-based cellular automaton cruising-for-parking simulation

Abstract This paper reports on the development of an agent-based cruising-for-parking simulation using the cellular automaton (CA) approach. The software was tested on a small-scale scenario, and a first verification step was performed for a real-world scenario for the town center of Zürich. Approaches to integrating the simulation into MATSim, a multi-agent transport simulation program, are discussed. The software is open source and can be downloaded from a free software repository. Empirical data that may be valuable for future model calibration are currently being surveyed in a global positioning system (GPS) study at the authors’ institute.
Functional MR of the brain: ABC for Beginners. It’s a good moment to review functional anatomy.

Poster: "ECR 2016 / C-1153 / Functional MR of the brain: ABC for Beginners. It’s a good moment to review functional anatomy. " by: "I. Garcia Duitama, S. Castaner, A. Camins, M. Cos, M. Perez Rubiralta, L. Farras Roca, C. Majos; Barcelona/ES"
Understanding the Formation of the Self-Assembly of Colloidal Copper Nanoparticles by Surfactant: A Molecular Velcro

Self-assembly procedure is employed to synthesize colloidal copper nanoparticles (ccNPs) with cationic surfactant in an environmentally friendly method. Scanning electron microscopy images provide a clear view of the ccNPs formed having an approximate size of 15 nm. The X-ray diffraction reveals that the ccNPs have the two types of copper oxide as well as the metallic copper. The new procedure shows that the cationic surfactant CTAB plays an important role in the understanding and development of self-assembly. There is a strong relationship between the ccNPs formation with the critical micelle concentration of the CTAB which influences both shape and size. The outcomes allowed the development of a molecular model for the ccNPs synthesis showing that the CTAB monomer on the surface has the function of a molecular velcro making the linkage of ccNPs to form an agglomerate with size around 600 nm. Finally, with the emerging new technologies, the synthesis of copper oxide takes a new perspective for their applicability in diverse integrated areas such as the flexible electronics and energy.
Temporal variations of bicycle demand in the Netherlands: The influence of weather on cycling

The variability in bicycle demand depends strongly on weather. This paper describes a ‘weather’ model that makes demand forecasting possible. The model is based on flow time-series of many years, collected at 16 cycle paths in the Dutch cities of Gouda and Ede. The model is bi-level. The lower level describes how cyclists value the weather. The upper level is the relation between demand and this weather value. The observations show that most cyclists value the weather in a similar way, but recreational demand is much more sensitive to weather than utilitarian demand. Most fluctuations are described by the model, but a significant fraction is still not covered. From a correlation analysis of the residuals, we conclude that about 70% of the remaining variation is locally constrained, and can therefore not be described by a generic model. However, about 30% of this variation is not driven by local effects. The cause of this variation is not yet known. Besides uncovering trends in cycling, the model can also be employed to evaluate the effect of cycling policy interventions, and to correct flow measurements as input in traffic models.
Study for Asia Phase III ( MICS-Asia III ) , Part I : overview and model 2 evaluation 3

28 Topic 3 of the Model Inter-Comparison Study for Asia (MICS-Asia) Phase III examines how 29 online coupled air quality models perform in simulating high aerosol pollution in the North 30 China Plain region during wintertime haze events and evaluates the importance of aerosol 31 radiative and microphysical feedbacks. A comprehensive overview of the MICS-ASIA III Topic 32 3 study design, including descriptions of participating models and model inputs, the experimental 33 designs, and results of model evaluation, are presented. Two winter months (January 2010 and 34 January 2013) were selected as study periods, when severe haze occurred in North China. 35 Simulations were designed to evaluate radiative and microphysical feedbacks, together and 36 separately, relative to simulations without feedbacks. Six modeling groups from China, Korea 37 and the United States submitted results from seven applications of online coupled chemistry38 meteorology models. Results are compared to meteorology and air quality measurements, 39 including the Campaign on Atmospheric Aerosol Research Network of China (CARE-China) 40 network, and the Acid Deposition Monitoring Network in East Asia (EANET). The analysis 41 focuses on model evaluations and aerosol effects on meteorology and air quality, and potentially 42 other interesting topics, such as the impacts of model resolutions on aerosol-radiation-weather 43 Atmos. Chem. Phys. Discuss. , https://doi.org/10.5194/acp-2017-731 Manuscript under review for journal Atmos. Chem. Phys. Discussion started: 5 September 2017 c © Author(s) 2017. CC BY 4.0 License.
Antiestrogens upregulate estrogen receptor expression and inhibit adrenocortical H 295 R cell proliferation

The molecular mechanisms involved in adrenocortical tumorigenesis are still not completely understood. In this study, using the H295R cell line as a model system, we investigated the role of estrogens and estrogen receptor (ER) and ER in the growth regulation of adrenocortical tumors. We demonstrated that H295R cells are able to convert androgens to estrogens by a constitutive expression of active cytochrome P450 aromatase protein and express ER to a greater extent than ER . Moreover, physiological concentrations of 17 -estradiol (E2) determined an increase of thymidine incorporation, suggesting the presence of an autocrine mechanism in maintaining H295R cell proliferation. Evaluating the response to ER antagonists like 4-hydroxytamoxifen (OHT) and ICI 182 780 (ICI), we observed an up-regulation of ER and a dose-dependent inhibition of H295R cell proliferation. Whereas ICI determined the growth arrest of H295R cells, OHT induced morphological changes that were characteristic of apoptosis. According to the above-mentioned observations, OHT but not ICI clearly induced a marked expression of FasL and the cleavage of both caspase-8 and caspase-3. Interestingly, the apoptotic effects of OHT in H295R cells may be consequent to the enhanced levels of ER which stimulate the expression of FasL interacting with activating protein (AP)-1 sites located within its promoter sequence. In conclusion, we have demonstrated that H295R cells are able to transform androgens to estrogens that activate an autocrine mechanism, mediated by their own receptors, and contribute to regulate the proliferation of these cells. Moreover, this study points towards a role for ER as an important mediator of the repressive effects exerted by antiestrogens on H295R cells; however, further studies are needed to clarify its role in the control of adrenocortical cell proliferation and on the potential benefits of antiestrogens for treatment of adrenocortical