Miracle-dz/UniFAR-FTUs huggingface dataset:
Vibrotactile Stimulation of Nail of Hallux during Walking: Effect on Center-of-Mass Movement in Healthy Young Adults

Previous studies have reported that vibrotactile stimulation of the nail of the hallux decreases the variability of the center-of-mass (CoM) movement in the lateral direction in subjects performing unsteady walking on the spot. This study investigated the effect of vibrotactile stimulation of the nail of the hallux on the CoM movement during walking. Healthy young males were asked to walk with and without stimulation, and their CoM was measured. The intrasubject mean and coefficient of variation (CV) of their walking speed, stance time, and CoM movement were evaluated. The differences between the variables with and without stimulation were determined, and the baseline-dependent effects of the stimulation on these variables were analyzed. It was observed that stimulation had a negative baseline-dependent effect on the CVs of the walking speed, stance time, and the CoM movement in the lateral direction. In particular, stimulation decreased the CV of the CoM movement in the lateral direction for subjects with a greater variability. Vibrotactile stimulation of the nail of the hallux can reduce the variability of the lateral displacement of the CoM movement in healthy young subjects who otherwise show a large variability of the CoM movement during walking without stimulation.
Evaluation of Some Promising Sugarcane Varieties for Yield, Quality and Natural Infection with Pokkah Boeng Disease under Different Row Spacing

The experiment was conducted at El-Mattana Research Station (latitude of 25.25° N and longitude of 32.31° E), Agricultural Research Center, Luxor Governorate, Egypt on a plant cane in 2016/2017 and its 1st ratoon in 2017/2018 to evaluate the performance of four promising sugarcane varieties viz. ʻG. 2004-27ʼ, ʻG. 84-47ʼ, ʻG. 2003-47ʼ and ʻC. 57-14ʼ compared to the commercial ʻG. T.54-9ʼ variety for yield, quality and natural infection with pokkah boeng disease (Fusarium moniliforme Sheldon) under three inter-row spacing (80, 100 and 120 cm). The studied combinations were randomly distributed in a randomized complete block design in a split-plot distribution, with three replications, where, inter-row spacing were allocated in the main plots, while sugarcane varieties were randomly distributed in the sub-plots. The results indicated that planting sugarcane in rows spaced at 100 cm attained significant increases in the number of millable canes/ha, stalk length, stalk weight, sucrose %, sugar recovery % and cane and sugar yield/ha in the plant and 1st ratoon cane crops as well as purity % in the plant cane. Brix% was not affected by inter-row spacing in both seasons. Moreover, insignificant difference was found between 80 and 100 cm inter-row spacing in the stalk weight, cane yield and sugar recovery % in the plant cane as well as stalk length, stalk weight, sucrose and sugar recovery % in the 1st ratoon crop. Increasing inter-row spacing from 80 to 120 cm led to a significant reduction in disease severity % of pokkah boeng disease in the plant and 1st ratoon crops. The promising sugarcane variety ʻG. 2003-47ʼ showed the significant superiority in the number of millable canes/ha and quality traits. The promising sugarcane ʻG. 2004-27ʼ variety surpassed the other ones in stalk length, stalk weight as well as cane and sugar yields/ha in the plant and 1st ratoon cane. Also, it recorded the lowest percentage of infection with pokkah boeng disease (Fusarium moniliforme Sheldon). However, the difference between ʻʻG. 2004-27ʼʼ and ʻG. 2003-47ʼ in the number of millable canes/ha in the 1st ratoon cane Research Article
A classical electrostatic model for tetragonal single crystals of barium titanate

Experimental observations of the ionic coordinates in single crystals of tetragonal barium titanate, together with theoretical estimates of the ionic charges, are taken as the starting point of a classical analysis of an electrostatic model of the crystal in which each ion is represented by a point charge carrying a point dipole; this dipole represents that arising from the electronic polarizability of the ion of the crystal. The positions occupied by the ions are such that their charges cause ionic polarization of the unit cells of the crystal. The charges also cause an electric field to exist at each ion; its calculation is based upon the Lorentz formula for internal field, but with a crucial difference in the manner of its application from the manner in which it previously has been applied. The ion exhibits electronic polarization caused not only by the field acting on it due to ionic charges, but also by that due to the electronic dipoles created at all other ions; the electronic polarization process is consequently highly interactive. These considerations lead to the derivation of an equation which must be satisfied if the spontaneous polarization is to be predicted; a similar procedure leads to another independent equation for the prediction of the refractive index. The electronic polarizabilities of the ions are constituents of each of these equations, and the insertion into them of literature values for the electronic polarizabilities of the barium and titanium ions permits the evaluation of the electronic polarizabilities of the oxygen ions in their two different crystallographic positions. The fields acting at, and the electrostatic forces acting on, each ion are then calculated.
The Impact of Seeding Rate and Locations on Some Grass Pea (Lathyrus sativus) Lines for Growth, Forage and Seed Yield in Sulaimani Region

This study was carried out at two locations in Sulaimani governorate, Qlyasan and Kanipanka, during the winter season of 2017-2018 to evaluate the response of four lines of Grass pea Lathyrus sativus (IF 003, IF 133, IF 102, IF 067) lines and four seeding rates (80kg/h, 100kg/h, 120kg/h, 140kg/h). The experiment was conducted at (December 5th /2018) in Kanipanka and (December 6th /2018) at Qlyasan. The design of factorial experiment RCBD with three replications was conducted. Means comparison was carried out by the least significant difference (L.S.D) at a significant level of 5%. The results confirmed that the grass pea lines, as the average of both locations there were highly significant differences among lines due to plant height, days to %50 flowering, leaf dry weight, and number of bacterial nodules/plant, but significant differences were observed for the character stem dry weight. It was noticed that the effect of locations on growth and forage characters for grass pea was highly significant for the days to maturity, leaf dry weight, stem dry weight, leaf stem ratio and number of bacterial nodules/plant, while it was significant for the character plant height. It was indicated that the second location recorded the highest value for plant height, leaf dry weight, stem dry weight, leaf stem ratio and number of bacterial nodules/plant with 60.080cm, 1.970g, 1.850g, 2.600 and 16.390 respectively. At the average of both locations there were differences highly significant among lines due to days to maturity, leaf dry weight, stem dry weight, leaf stem ratio and number of bacterial nodules/plant. Line number IF067 produced the highest value for days to maturity and stem dry weight and number of bacterial nodules/plant with 155.6 days, 4.990 g and 14.27 respectively. The effect of seeding rate on seed yield and it is components for grass pea at the average of both locations and there was highly significant for the number of pod/plant, seed yield, biological yield, and harvest index significant for 100 seed weight. As the average of both locations using 140 kg/h seeds produced maximum values for the most characters.
Smart Lumini: A Smart Lighting System for Academic Environments Using IOT-Based Open-Source Hardware

Rational energy consumption in large buildings depends on both the users' consumption culture and the management systems implemented. In Colombia, few buildings have an energy management system characterized by its adaptability to the user and with a certain degree of intelligence. Thus, this document describes the summarized research process for the development of an Internet of Things (IoT) system, which has been designed to promote an intelligent lighting service in an academic environment. The IoT system orchestrates a series of sensors, monitoring systems and controlled actions, all based on the principle of making the system functions and consumption records available in real-time, via web services. The devices used are "Things" with improved functionality, becoming "Smart Things" within the IoT paradigm. Methodologically, an experimental process was followed, linking the development of electronic tools, the construction of services, and the development of interfaces for a pleasant user experience. Research contributes to 1 Universidad del Cauca (Popayán-Cuaca, Colombia). amarillo@unicauca.edu. co. ORCID: 0000-0002-29104239 2 Universidad Pedagógica y Tecnológica de Colombia (Tunja-Boyacá, Colombia). cristianleonardo.cardenas@uptc.edu. co. ORCID: 0000-0002-2375-330X 3 M. Sc. Corporación Universitaria Autónoma del Cauca (Popayán-Cauca, Colombia). julian.caicedo. m@uniautonoma.edu. co. ORCID: 0000-0002-2357-319X 4 Ph. D. Universidad Pedagógica y Tecnológica de Colombia (Tunja-Boyacá, Colombia). miguel.mendoza@uptc.edu. co. ORCID: 0000-0001-9000-5881 Smart Lumini: A Smart Lighting System for Academic Environments Using IOT-Based Open-Source Hardware Revista Facultad de Ingeniería (Rev. Fac. Ing.) Vol. 29 (54), e11060. 2020. Tunja-Boyacá, Colombia. L-ISSN: 0121-1129, e-ISSN: 2357-5328, DOI: https://doi.org/10.19053/01211129.v29. n54.2020. 11060 two essential areas: intelligent buildings, through the intelligent adaptation of an environment; and sustainability and eco-innovation, since the system provides appropriate information for environmental education, in terms of real-time energy consumption, that impacts directly on the fair-use culture of a service expensive for the environment.
Supplementation of Jengkol Peel on VFA Molar Proportion, Methane Production, and Hydrogen Balance in Vitro

This research was designed to study about effects of supplementation jengkol (Archidendron jiringa) peel powder on VFA molar proportion, production of methane, and hydrogen balance in vitro. The experiment used randomized block design with 4 treatments (0%, 2%, 4%, 6%) and 4 replications. The research observed of VFA molar proportion, production of methane, and hydrogen balance. Data were analyzed using Analysis of Variance (ANOVA), and the Duncan Multiple Range Test examined the differences among treatment means. The results showed that the supplementation of jengkol (A. jiringa) peel powder until 6% did not affect (P>0.05) VFA molar proportion but the treatment without supplementation of jengkol (A. jiringa) peel powder had the highest (P<0.05) methane and H2 production. It was concluded that the supplementation of jengkol (A. jiringa) peel powder until 6% decreased methane and hydrogen production but did not affect on VFA molar proportion.
Bandwidth and gain enhancement of triple‐band MIMO antenna incorporating metasurface‐based reflector for WLAN/WiMAX applications

In this work, a compact two-element triple-band multiple-input multiple-output (MIMO) antenna loaded with reflective type metasurface (MS) for enhancing the gain, isolation and impedance bandwidth (IBW) is presented. The two-element radiator antenna consists of a microstrip feed line on the upper side of the substrate and defected ground structure (DGS) on the backside on which multiple slots are etched for obtaining triple-band antenna performance. Due to DGS loading, the entire dimensions of the single radiator antenna are reduced to 22 × 22 × 1.6 mm3 with smaller electrical dimensions of 0. 17λ 0 × 0. 17λ 0 × 0. 012λ 0 at the first resonating frequency. The proposed two-port MIMO antenna with MS operates at 2.36–2.50, 3.43–3.50 and 5.15–5.88 GHz with percentage bandwidths of 5.76, 2.02 and 13.22% for the three operating bands. Due to MS loading, a gain improvement of 5.49, 4.57 and 0.80 dBi is noticed with a maximum gain of 3.98, 5.25 and 2.66 dBi is obtained at the three operating frequencies of 2.46, 3.51 and 5.32 GHz, respectively. The intended antenna is appropriate for working in IEEE 802.11 b/g/n (2.4–2.484 GHz) WLAN, IEEE 802.11 a/h/j (5.15–5.825 GHz) WLAN, and IEEE 802.16e (3.4–3.5 GHz) WiMAX wireless applications.
Prevalence and Adhesion Properties of Bifidobacterium Species in the Oral Cavity and Vagina

Bifidobacterium species have been reported in oral cavity with dental caries and in vagina with bacterial vaginosis. However, the role of bifidobacteria in the association with pathogenesis of both routes is unclear and there are no prevalence data available for Thai population. The aims of the present thesis were therefore: 1) to investigate prevalence of bifidobacteria isolated from oral cavity and vagina. 2) to evaluate adhesion ability, hydrophobic and hydrophilic surface charges as well as assessment of biofilm formation and cytotoxicity of the oral and vaginal bifidobacteria. Dental caries is the consequence of demineralization of teeth caused by acids due to cariogenic bacteria. Several publications have reported the association of bifidobacteria with dental caries lesions but no data of prevalence and adhesion properties of oral Bifidobacterium spp. have been evaluated in Thai children. A total number of 167 strains of oral bifidobacteria were isolated from 50 caries-active children and 50 caries-free subjects and identified by molecular biology techniques. The bifidobacteria of both groups were examined for adhesion ability, surface properties, biofilm formation and cytotoxicity. The prevalence of oral bifidobacteria in caries-active children (48%) (24/50) was significantly higher than caries-free group (24%) (12/50) (p<0.05) with total count of 5.8±0.9 Log CFU/ml and 2.7±0.8 log CFU/ml, respectively. The frequently found species of bifidobacteria were B. dentium (82.9%) (102/123), B. breve (11.4%) (14/123) and B. longum (5.7%) (7/123) for caries-active and B. dentium 100% (44/44) for caries-free group. All strains of bifidobacteria were able to adhere keratinocyte cell line in vitro. The adherent strains of B. dentium showed higher total adhesion ability in cariesactive subjects (66%) than caries-free group (58%). The B. dentium showed strain variations in cell surface characteristics of hydrophobic and hydrophilic surface charges. The strains of B. vii
Detection ofListeria monocytogenesandStaphylococcus aureus viaduplex recombinase polymerase amplification

Foodborne illnesses associated with foodborne pathogens Listeria monocytogenes and Staphylococcus aureus occur at high frequencies. In this study, species‐specific primers and probes sets for the detection of L. monocytogenes and S. aureus were designed based on the nucleotide sequences of the actin‐assembly inducing protein precursor (actA) and clumping factor A (clfA) genes, respectively. We established a duplex RPA assay that is capable of simultaneously detecting L. monocytogenes and S. aureus within 15 min. With the plasmid standard, the sensitivity of the double RPA to L. monocytogenes and S. aureus can reach 10² copies/μL. The method also detected DNA extracted from samples inoculated with L. monocytogenes and S. aureus. After 4 hr of incubation, the sensitivity of the food model to L. monocytogenes and S. aureus reached 230 and 270 cfu/reaction, respectively. The assay was highly specific and had no cross‐reaction between closely related bacteria. Further assessment of this method on strains isolated within the lab collection showed that the duplex RPA provided the same testing results as microbiological methods. Therefore, the assay is effective for the rapid detection and preliminary screening of L. monocytogenes and S. aureus. PRACTICAL APPLICATIONS: Listeria monocytogenes and Staphylococcus aureus are two major foodborne pathogens and have been found in a wide range of foods. We developed a duplex RPA specific targeting actA and clfA genes with high‐amplification efficiency. We evaluated the performance of duplex RPA by building a food model. The detection results by the duplex RPA were compared with PCR and no significant differences were found. This study provides the information of the developed duplex RPA for detecting two specific foodborne pathogens, which will be helpful for further studies about simultaneous detection of several targets using duplex RPA.
Understanding the University-Sustainability Link through Media: A Spanish Perspective

This article provides a procedure to universities for understanding the social perception of their activities in the sustainability field, through the analysis of news published in the printed media. It identifies the Spanish news sources that have covered this issue the most and the topics that appear in that news coverage. Using a probabilistic topic model called Latent Dirichlet Allocation, the study includes the nine dominant topics within a corpus with more than seventeen thousand published news items (totaling approximately five and a quarter million words) from a database of almost thirteen hundred national press sources between 2014 and 2017. The study identifies the news sources that published the most news on the issue. It is also found that the amount of news on sustainability and universities declined during the covered period. The nine identified topics point towards the relevance of higher education institutions’ activities as drivers of sustainability. The social perception encapsulated within the topics signals how the public is interested in these activities. Therefore, we find some interesting relationships between sustainable development, higher education institutions’ missions and behaviors, governmental policies, university funding and governance, social and economic innovation, and green campuses in terms of the overall goal of sustainability.
Esterification of acetic acid in the presence of sulfated clinoptilolite: a model study of upgrading of pyrolysis bio-oil

ABSTRACT In this study, the esterification reaction of acetic acid with n-propyl alcohol was studied on a sulfated zeolite catalyst to improve the bio-oil obtained by pyrolysis of lignocellulosic biomass. Temperature (323–353 K), sulfuric acid concentration (1–3 M) and time (1–4 hours) were selected as parameters in the preparation of sulfuric acid-modified clinoptilolite samples. Sulfated zeolites samples are characterized by XRF, XRD, and N2 adsorption/desorption techniques. It was observed that the zeolites treated with sulfuric acid retained their crystal structures, decreased surface areas, and changed SiO2/Al2O3 ratios. Samples modified with sulfuric acid are more effective in the esterification reaction than unmodified zeolite. The increase in sulfuric acid concentration and temperature in the modification process increased the conversion of acetic acid in the esterification reaction. The highest acetic acid conversion (63.8%) was obtained with zeolite treated at 323 K temperature, 3 M sulfuric acid for 1 hour.
Performance Assessment of a Hybrid System with Hydrogen Storage and Fuel Cell for Cogeneration in Buildings

The search for new fuels to supersede fossil fuels has been intensified these recent decades. Among these fuels, hydrogen has attracted much interest due to its advantages, mainly cleanliness and availability. It can be produced from various raw materials (e.g., water, biomass) using many resources, mainly water electrolysis and natural gas reforming. However, water electrolysis combined with renewable energy sources is the cleanest way to produce hydrogen while reducing greenhouse gases. Besides, hydrogen can be used by fuel cells for producing both electrical and thermal energy. The aim of this work was towards efficient integration of this system into energy efficient buildings. The system is comprised of a photovoltaic system, hydrogen electrolyzer, and proton exchange membrane fuel cell operating as a cogeneration system to provide the building with both electricity and thermal energy. The system’s modeling, simulations, and experimentations were first conducted over a short-run period to assess the system’s performance. Reported results show the models’ accuracy in analyzing the system’s performance. We then used the developed models for long-run testing of the hybrid system. Accordingly, the system’s electrical efficiency was almost 32%. Its overall efficiency reached 64.5% when taking into account both produced electricity and thermal energy.
Revealing Spectrum Features of Stochastic Neuron Spike Trains

Power spectra of spike trains reveal important properties of neuronal behavior. They exhibit several peaks, whose shape and position depend on applied stimuli and intrinsic biophysical properties, such as input current density and channel noise. The position of the spectral peaks in the frequency domain is not straightforwardly predictable from statistical averages of the interspike intervals, especially when stochastic behavior prevails. In this work, we provide a model for the neuronal power spectrum, obtained from Discrete Fourier Transform and expressed as a series of expected value of sinusoidal terms. The first term of the series allows us to estimate the frequencies of the spectral peaks to a maximum error of a few Hz, and to interpret why they are not harmonics of the first peak frequency. Thus, the simple expression of the proposed power spectral density (PSD) model makes it a powerful interpretative tool of PSD shape, and also useful for neurophysiological studies aimed at extracting information on neuronal behavior from spike train spectra.
Application of membrane processes for archaea isolation

In environmental engineering the membrane processes are used mainly for water and wastewater treatment. Different impurities can be removed from the solutions, depending on the type of membrane and the actual process employed. The authors adopted the microfiltration process, acting as a micron sieve, for isolation of the little-known Archaea microorganisms, leached from an organic material. The isolation was performed using MCE membranes of different porosities. For each fraction, DNA isolation was carried out with the GeneMATRIX Soil DNA Purification Kit (EURx, Poland). Analysis of the presence of the DNA material in the individual fractions revealed that the whole group of ammonia oxidizing Archaea microorganisms fits within the top range, i.e. > 3.0 μm. At the same time, analysis of the size and number of particles in the different fractions showed that the test material was very diverse, and microorganisms heavily contaminated by other substances.
A Multiscale Approach for Creating Boundary Conditions for Building Energy Analysis

Received: 9 April 2020 Accepted: 26 May 2020 This work aims to expose the mesoscale-microscale numerical approach for defining the boundary conditions for more accurate building energy simulations. Three models are examined (Pleim-Xiu, Blackadar and MRF-LSM) and compared with the data recorded by the anemometer located at the University “G. d’Annunzio” in Pescara. The city of Pescara, situated on the coast in the centre of Italy, is selected to analyse the wind pattern. The main object of this work is providing more detailed information through the results obtained by CFD analyses. Two computational cylindrical domains, with a diameter of 8 km, are evaluated: the first domain models only the land topography whereas the other also involves buildings located inside the area. Both domains are divided into 12 circular sectors of 30° to consider the various directions of the inlet wind. The calibration of virtual anemometers on real data allows the creation of a more accurate profile of the inlet wind and temperature for better energy simulations, especially in case of buildings with Double Skin Façade (DSF). The MM5 weather forecast model is adopted to evaluate the wind pattern and distribution, while CFD analyses are performed using the STAR-CCM+ software.