Miracle-dz/UniFAR-FTUs huggingface dataset:
Studies on the antioxidant activity of ethanol extract of Cassis alata using FT-IR, HPLC and GC-MS analysis

The aim of the present investigation is to screening of phytochemical constituents for its free radical scavenging activity of ethanol extract of Cassia alata leaves. The preliminary screening was carried out by standard chemical method. It evidenced that the presence of phytochemicals such as alkaloids, carbohydrate, phenols, tannins, falvanoids, steroids, protein and sugar in the ethanol extract. Various functional groups like alcohols, phenols, carboxylic acid and nitro groups were associated with the extract were characterized using Fourier transform infrared spectroscopy (FTIR). A few common compounds available in the extract were identified by Gas chromatography – Mass spectrum (GC-MS) analysis. The DPPH free radical scavenging activity and 50 % inhibitory concentration (IC50) was calculated and compared with the standard synthetic drug BHT. The IC50 value of leaf extract was found to be 24.56 μg/ml respectively. This study revealed that C. alata ethanol extract of leaves has alternative drugs for free radical it could be acted as a novel source of free radical scavengers.
A Bound on a Class of Minimal POS Groups

Anite group G is said to be a POS group if the number of elements of any given order is either zero or divides jGj. There are only three known minimal abelian POS groups having order not divisible by 5. We show that these are the only such groups G for whichjGj < 6:62 10 336 : Mathematics Subject Classication: 20K01, 11N25
Negative evaluation of the group increases collective narcissism and intergroup hostility under intergroup threat.

Results of 3 experimental studies in two countries indicate that collective narcissism can be experimentally manipulated. Collective narcissism is an emotional investment in a belief in exaggerated greatness of an in-group (Golec de Zavala et al. 2009). It increases when people face negative evaluation of the in-group (e.g. national group or university peers). This effect is independent of initial identification with the group. Momentary increase in collective narcissism results in retaliatory out-group negativity under intergroup threat. Thus, the present results replicate and extend the previous findings that individual levels of narcissistic identification with an in-group increase sensitivity to and hostile responses to intergroup threat. Unlike collective self-esteem that does not change in response to in-group evaluations, collective narcissism is unstable and defensive positive regard for the in-group. Study 2 indicates that it increases because the negative evaluation of the in-group is perceived as offence. Study 2 also shows that pairing negative evaluation with positive assessment of the in-group on a different dimension prevents the increase in collective narcissism. Therefore, it reduces a chance of escalation of intergroup hostility.
Optimization of the compressed natural gas (CNG) refueling station distribution: Swiss case studies

To become a mass-market product, compressed natural gas (CNG) cars will need a dense network of filling stations. The Swiss natural gas industry plans to invest in 350 additional CNG stations to supplement the existing 50 sites. Cost–benefit analysis is used to define the optimal locations for these among the existing 3470 petrol filling stations. It is found using two simulations looking at equitable location of sites and socially optimal ones, that the investment in additional CNG infrastructure is unlikely to be socially advantageous.
Polydimethylsiloxane microspheres with poly(methyl methacrylate) coating: Modelling, preparation, and characterization

: Polydimethylsiloxane (PDMS) microspheres are prepared by mixing homogeneous dispersions of vinyl-functional PDMS and a curing agent using mechanical stirring in a series of aqueous solutions, and curing at 80 ℃ for 2 h. In order to verify the experimental diameter and size distributions of the PDMS microspheres, the Hinze-Kolmogorov theory is applied to predict the mean diameter, and a population balance model as well as the maximum entropy formalism are used to describe the size distribution. Close agreement is found between experimental and theoretical results. Furthermore, vinyl functional PDMS microspheres were coated with poly(methyl methacrylate) (PMMA) by spin coating with different concentrations of PMMA solutions. The quality of the resulting PMMA shell is investigated using rheological measurements at 50 ℃ with a time-sweep procedure. The results strongly suggest that PMMA-coated PDMS microspheres react around 20 times slower than the uncoated ones, and that the PMMA shell significantly hinders the reaction between the PDMS microsphere and cross-linker. Thus the thin PMMA shells are very efficient in protecting the reactive PDMS microspheres, since the PMMA shell forms an impermeable barrier up to 50 .
COMPARING STEREO IMAGE MATCHING PERFORMANCE BY MULTIDIMENSIONAL SEARCH WINDOWS

Abstract. Image matching is a key technology for extraction of dense point cloud and 3D terrain information using satellite/aerial imagery. In image matching using brightness values of pixels, the size of search window is an important factor for determining the matching performance. In this study, we perform matching using multi-dimensional search windows applicable to area-based matching and compare the performance. Also, the search window is reconfigured by using the linear information existing on the image, and the matching is tried. Comparing the fixed search window and the multi-window matching results, it was confirmed that the multiple windows under the same conditions show relatively high accuracy. We can also see that the method of applying the line element has slightly better accuracy. As a result of applying the line element extraction technique, a large number of pixels are not extracted compared with the total image pixel amount. There was no significant difference in the results of visual analysis. However, we have confirmed that this technique has contributed to improving accuracy.
The Text of the Memorandum 'Sikhs and the New Constitution for India' (1930). Political Importance and Linguistic Sentiment Analysis.

Communication research has often been performed through text analysis and content analysis. They are research techniques that vary in nature and allow the researcher to make inferences from data present in a text and extract relevant information from them. Content analysis has been used in a variety of contexts with diverse research objectives, goals and methods including computerized and automated methods. In our textual analysis we have selected the Sikh Memorandum from the Indian Round Table Conference (1930) in order to extract linguistic information about its contents that can be related to its historical context through automated methods and in this manner find out word patterns to denote sentiment importance. The purpose is to find out the agreement of some of the automated online sentiment analysis tools that are available on the net as well as whether the Memorandum had positive, neutral or negative polarity. The results will be analyzed.
Practical and Theoretical Study of the Adsorption Performances of Straw-Based Tertiary Amine-Supported Material toward Sulfur Dioxide in Flue Gas

The primary and secondary amines of tetraethylenepentamine (TEPA) were N-methylated into tertiary amines through the Eschweiler-Clarke reaction. A straw-based tertiary amine-supported material (STA) was developed for SO2 removal, using a wet impregnation process. The effect of the adsorption conditions, such as the moisture content, flow rate, and adsorption temperature, as well as the regeneration performances were studied. Experimental results showed that STA has high SO2 adsorption capacity (approximately 100 mg/g) and can be regenerated at 100 °C. Furthermore, the adsorption of SO2 molecules on tertiary amine was studied using density functional theory (DFT). The most stable geometries of the adsorption structure in five possible positions, the geometric changes after the adsorption, and the corresponding adsorption energies were analyzed. The results showed that modified TEPA (M-TEPA) has four potential adsorbed sites (N(1,3,4,5)) with a small adsorption energy, indicating that the adsorption is weak. Moreover, the energy of the adsorbed SO2 on the N(1,3,4,5) is less than zero, indicating that the adsorption process is exothermic and spontaneous. The theoretical investigation agreed well with the experimental results.
FACTORS AFFECTING THE TRAPPING OF MALES OF SPODOPTERA FRUGIPERDA (LEPIDOPTERA: NOCTUIDAE) WITH PHEROMONES IN MEXICO

Abstract Four commercial sex pheromones and virgin females were tested as attractants for male fall armyworm (FAW), Spodoptera frugiperda with Scentry Heliothis traps in sorghum fields in Chiapas, Mexico. We observed significant differences among the lures tested. Pherotech, virgin females, and Scentry lures elicited different responses from Chemtica and Trece lures. In another experiment performed in Michoacán, Mexico, we found that Scentry Heliothis traps baited with Chemtica lures placed at 1.5 m above ground caught significantly more males than traps placed at a height of 2 m. In contrast, the capture of S. frugiperda males with bucket traps placed at 1 m height was not significantly different from that of traps placed at 1.5 and 2 m height. When baited with pheromone, Scentry Heliothis traps caught more non-target insects than bucket traps. Apidae was the most prevalent family of non-target insects caught in both experiments.
Lattice Boltzmann Method of a Flooding Accident at Gopeng, Perak, Malaysia

The extraordinary flood had hit the residential area at Taman Raia Mesra, Gopeng, Perak, Malaysia, in November 2016. The event illustrated how the river basin had been fully inundated due to the heavy rainfall and caused the overflow to this affected area. It was reported that the occurrence became worst as the outlet of retention pond which connects to the river is unsuitable for the water outflow. Henceforth, this paper attempts to evaluate the causal factor of this recent disaster by using a model developed from Lattice Boltzmann Method (LBM). The model also incorporated with the rainfall and stormwater in LABSWE™. The simulation was commenced with the basic tests for model validation comprising turbulent and jet-forced flow in a circular channel, which resulted in a good agreement for both models. The simulation continued by using LABSWE model to reveal the water depth and velocity profile at the study site. These results had proven the incompatibility size of the outlet pond which is too small for the water to flow out to the river. The study is capable of providing the authorities with a sustainable design of proper drainage system, especially in Malaysia which is constantly receiving the outrageous heavy rainfall.
Impact of Transformational Leadership Training Program on Nurse's Unit Manager Behavior Change

First-line managers can influence the success of health care organizations because of their management role, especially at the unit level. Adopting transformational leadership behavior helps in the success of the organization (Laoha vichien, 2009). Training program for first-line managers has become a task that organizations today should pay attention to (Luu, Nguyen,2012). Aim of the study: was to evaluate impact of transformational leadership training program on nurse’s unit manager behavior change at El-Minia University Hospital. A sample was consisted of (35) heads of the unit. Data were collected by using three tools (1) The Multifactor Leadership Questionnaire MLQ) Leader Form is a self-administered questionnaire (2) The Multifactor Leadership Questionnaire MLQ) Leader observational Form (3) Knowledge Questionnaire Sheet (Pre and post- test). Results: levels of nursing managers' total knowledge were significant improved post than pre –program, there is statistically significant improvement of nurse managers perception and skills regarding multi-factional questioners dimension items post1 and post2 program than preprogram. Conclusion: After the training program implemented, their knowledge, perceptions and skills significantly improved toward transformational leadership style. Recommendation: continuous designing of training programs for head nurses to improve transformational leadership style and empower the culture of transformational organizational and Coaching in transformational leadership might help to equip leaders with behaviors skill lacking in their repertoire. Keywords : First-line managers, transformational leadership, training program.
Monitoring presence and streaming patterns of Icelandic volcanic ash during its arrival to Slovenia

Abstract. The eruption of the Eyjafjallajokull volcano starting on 14 April 2010 resulted in the spreading of volcanic ash over most parts of Europe. In Slovenia, the presence of volcanic ash was monitored using ground-based in-situ measurements, lidar-based remote sensing and airborne in-situ measurements. Volcanic origin of the detected aerosols was confirmed by subsequent spectral and chemical analysis of the collected samples. The initial arrival of volcanic ash to Slovenia was first detected through the analysis of precipitation, which occurred on 17 April 2010 at 01:00 UTC and confirmed by satellite-based remote sensing. At this time, the presence of low clouds and occasional precipitation prevented ash monitoring using lidar-based remote sensing. The second arrival of volcanic ash on 20 April 2010 was detected by both lidar-based remote sensing and airborne in-situ measurements, revealing two or more elevated atmospheric aerosol layers. The ash was not seen in satellite images due to lower concentrations. The identification of aerosol samples from ground-based and airborne in-situ measurements based on energy-dispersive X-ray spectroscopy confirmed that a fraction of particles were volcanic ash from the Eyjafjallajokull eruption. To explain the history of the air masses bringing volcanic ash to Slovenia, we analyzed airflow trajectories using ECMWF and HYSPLIT models.
Effect of different recovery modalities on repeated-sprint performance in amateur soccer players

Purpose. The study evaluates the effect of low-frequency electrical stimulation (LFES) of calf muscles on repeated-sprint performance and compares it with the frequently used active (ACT) and passive (PAS) recovery in amateur soccer players. Methods. A group of 11 amateur male soccer players completed 2 repeated-sprint ability (rSA) tests (7 × 34.2 m with 25 s of ACT recovery between sprints) separated by a 15-min recovery period. During recovery, 1 of the 3 recovery modalities (PAS, ACT, or LFES) was randomly selected. Results. Mean sprint time significantly increased between the first and the second rSA test after PAS (from 6.43 ± 0.21 s to 6.49 ± 0.23 s; p = 0.029) and LFES (from 6.45 ± 0.25 s to 6.54 ± 0.27 s; p = 0.025), whereas its values did not change significantly after ACT (from 6.42 ± 0.21 s to 6.45 ± 0.2 s; p = 0.093). However, small effect sizes indicate that the changes in mean sprint time after these 3 recovery modalities were not practically significant (PAS, d = 0.22; LFES, d = 0.29; ACT, d = 0.13). In addition, mean sprint time in the rSA test did not differ significantly between groups that underwent different recovery modalities. Conclusions. These findings indicate that practitioners can use any of these different recovery modalities, basing on their desire.
Studies on Agrobacterium mediated genetic transformation of rice (Oryza sativa L.) for drought tolerance using Dreb 1 gene

Improving crops that are better adapted to abiotic and biotic stresses is gaining importance for sustainable food production in the present era of rapid climate change. The present investigation was carried out to optimize genetic transformation method in rice (Oryza sativa L. cv. Lalat) employing Agrobacterium strains GV3107 harbouring binary vector pCAMBIA2300 with rd29A::DREB1 gene construct. De-husked mature seeds of rice cv. ‘Lalat’ treated with Bavistin (1%) for 10 minutes followed by 0.1% HgCl2 + Tween-20 for 6 minutes resulted better asceptic culture with the maximum survival percentage. Incorporation of phytohormone 2, 4-D (2.5 mg/l) in the modified MS medium induced profuse, white, friable, embryogenic calli. The best in vitro regeneration from calli was obtained in the modified MS medium supplemented with BAP, NAA and Kinetin. The modified MS medium supplemented with 2.0 mg/l BAP, and 0.2 mg/l NAA was able to induce the maximum multiple shoots and organogenesis. The maximum number of multiple shoots (9.75) was recorded in modified MS medium supplemented with 2.0 mg/l BAP and 0.2 mg/l NAA within 30.75 days of culture. For root induction NAA was found to be the most effective phytohormone and effective rooting was recorded on modified MS medium supplemented with 1.0 mg/l NAA and 0.2 mg/l BAP within 25 to 30 days after culture of shoots on rooting medium. Various factor influencing transformation of rice callus and multiple shoots were optimized such as co-cultivation period (3 days) and bacterial inoculum density (0.6-0.8 at 600 nm), acetosyringone concentration (200 µM) and Kanamycin sensitivity (120 mg/l). The transformation efficiency based on Kanamycin selection was found to be 8.97 % whereas the transformation frequency on the basis of the PCR was found to be 2.56%.
Gold nanoparticles formation mechanism by photochemical synthesis

Gold Nanoparticles Formation Mechanism by Photochemical Synthesis Javier A. Sanabria-Cala*, Gerson R. Conde-Rodríguez, Gilles H. Gauthier, Luiz O. Ladeira, Dionisio A. Laverde-Cataño, Dario Y. Peña-Ballesteros, Diego Merchan‐Arenasc. Grupo de investigaciones en corrosión, Universidad Industrial de Santander, Bucaramanga, Colombia. Parque Tecnológico Guatiguara, Km 2 vía refugio, Piedecuesta, A.A. 681011, Colombia. Laboratorio de Nanomateriais – Departamento de Física, Universidade Federal de Minas Gerais, Av. Pres. Antônio Carlos, 6627 Pampulha, Belo Horizonte CEP 31270-901, Brasil. Laboratorio de Química Orgánica Aplicada, Universidad Manuela Beltrán, Calle de los Estudiantes 10-20 Ciudadela Real de Minas, Bucaramanga A.A. 678, Colombia. sanabriacalaj@gmail.com
A swarm intelligence based approach to the mine detection problem

This research focuses on the application of swarm intelligence to the problem of mine detection. Swarm Intelligence concepts have captivated the interests of researchers mainly in collective robotics, optimization problems (traveling salesman problem (TSP), quadratic assignment problem, graph coloring etc.), and communication networks (routing) etc [1]. In the mine detection problem we are faced with sub problems such as searching for the mines over the minefield, defusing them effectively, and assuring that the field is clear ofmines within the least possible time. In the problem, we assume that the mines can be diffused by the collective action of the robots for which a model based on ant colonies is given. In the first part of the project we study the ant colony system applied to the mine detection problem. The theoretical aspects such as the ant's behavior (reaction of the ants to various circumstances that it faces), their motion over the minefield, and their process of defusing the mines are investigated. In the second section we highlight a certain formulation that the ants may be given for doing the task effectively. The ants do the task effectively when they are able to assure that the minefield is clear of the mines within the least possible time. A compilation of the results obtained by the various studies is tabulated. In the third and final section we talk about our emulations conducted on the Multi Agent Biorobotics Lab-built groundscout robots, which were used for the demonstration of our swarm intelligence-based algorithms at a practical basis. The various projects thus far conducted were a part of the Multi Agent Biorobotics Lab at Rochester Institute ofTechnology.
1 SMEs ’ dependency on banks during international expansion

The purpose of this study is to investigate whether local banks are needed as partners for internationalising small and medium-sized enterprises (SMEs), and if so, in what ways they affect SMEs. The purpose can, in a wider sense, shed light on institutions’ intermediating functions for transactions in the economy, both locally and internationally. To study this gap in the literature and in our knowledge concerning banks effects on SMEs’ internationalisation a questionnaire was distributed to Swedish SMEs involved in international activities. A sample of 318 SMEs and in-depth studies of Swedish Savings banks was used. The results are presented as descriptive statistics and by using t-tests. The findings show that banks are the least used source of information for internationalising SMEs. The results also show that banks do not participate in SME business networks when SMEs are internationalising. SMEs that have been dependent on banks when developing their international business relationships, however, tend to have previously depended on the bank when conducting business.
Optimization of Vertical Well Placement for Oil Field Development Based on Basic Reservoir Rock Properties using a Genetic Algorithm

Comparing the quality of basic reservoir rock properties is a common practice to locate new infill or development wells for optimizing oil field development using reservoir simulation. The conventional technique employs a manual trial-and-error process to find new well locations, which proves to be time-consuming, especially for large fields. Concerning this practical matter, an alternative in the form of a robust technique is introduced in order to reduce time and effort in finding new well locations capable of producing the highest oil recovery. The objective of this research was to apply a genetic algorithm (GA) for determining well locations using reservoir simulation, in order to avoid the conventional manual trial-and-error method. This GA involved the basic rock properties, i.e. porosity, permeability, and oil saturation, of each grid block obtained from a reservoir simulation model, to which a newly generated fitness function was applied, formulated by translating common engineering practice in reservoir simulation into a mathematical equation and then into a computer program. The maximum fitness value indicates the best grid location for a new well. In order to validate the proposed GA method and evaluate the performance of the program, two fields with different production profile characteristics were used, fields X and Y. The proposed method proved to be a robust and accurate method to find the best new well locations for oil field development. The key to the success of the proposed GA method lies in the formulation of the objective functions.
MULTIPLE OBJECTIVE NETWORK FLOW PROBLEMS

In this work, it is presented the multiple objective network flow problems. This kind of problem is converted into single objective problem and solved by using the primal dual interior point method. The linear system associated to the interior point method is solved by using the Cholesky decomposition, implemented in MATLAB code. Networks of different dimensions are constructed and the computational results show the efficiency of the mentioned interior point method for solving multiple objective network flow problems. MSC(2010): 90C05, 90C51, 90B06.