Miracle-dz/UniFAR-FTUs huggingface dataset:
Instability of the Homogeneous Distribution of Chemical Waves in the Belousov–Zhabotinsky Reaction

Chemical traveling waves play an important role in biological functions, such as the propagation of action potential and signal transduction in the nervous system. Such chemical waves are also observed in inanimate systems and are used to clarify their fundamental properties. In this study, chemical waves were generated with equivalent spacing on an excitable medium of the Belousov–Zhabotinsky reaction. The homogeneous distribution of the waves was unstable and low- and high-density regions were observed. In order to understand the fundamental mechanism of the observations, numerical calculations were performed using a mathematical model, the modified Oregonator model, including photosensitive terms. However, the homogeneous distribution of the traveling waves was stable over time in the numerical results. These results indicate that further modification of the model is required to reproduce our experimental observations and to discover the fundamental mechanism for the destabilization of the homogeneous-distributed chemical traveling waves.
Exploring Head Teachers’ Instructional Supervisory Role: The Case of Public Junior High Schools in Jirapa Municipality of Ghana

The study explored Head teachers’ instructional supervisory role among public Junior High Schools in the Jirapa Municipality of the Upper West Region of Ghana. It adopted psychological and system theory of supervision propounded by Planturrroot (2006) and Bertalanffy (2015) respectively. The mixed method sequential approach was followed in the conduct of the study where both quantitative and qualitative data were collected and analysed. A sample size of 200 respondents made up of 40 head teachers, 80 teachers and 80 pupils were used for the quantitative data, whilst 10 head teachers were selected for the qualitative data. The Statistical Product for Service Solutions (SPSS) version 23 was used to analyse the quantitative data while thematic approach was used for the qualitative data. The findings of the study revealed in-frequent orientation for newly engaged teachers. It further showed lower ratings in the provision of in-service training, time tabling design and setting of performance target for pupils and teachers. It was recommended that the Ministry of Education and Ghana Education Service (GES) should regularly organize workshops, seminars and in-service trainings on supervisory roles of head teachers and assistant head teachers to equip them with the needed knowledge and skills in the municipality. Lastly, Heads of schools and other supervisors should re-design schools` time tables to suit the use of instructional time in the lesson of teachers to enhance their monitoring.
Development of a ReaxFF Reactive Force Field for NaSiOx/Water Systems and Its Application to Sodium and Proton Self-Diffusion

We present the development of a ReaxFF reactive force field for Na/Si/O/H interactions, which enables reactive molecular dynamics simulation of the sodium silicate–water interfaces. The force field parameters were fitted against various quantum mechanical calculations, including equations of state of different NaSiOx crystalline phases, energy barriers of a sodium cation’s transport within the sodium silicate crystal structure, interactions between the hydroxylated silica surface and sodium cation–water systems, and dissociation energies of [NaOH–n(H2O)] (n = 1–6) clusters. After the optimization process, we validated the force field capability through calculating the structures of sodium silicate crystals and glasses and transport properties of sodium ions and protons within the amorphous structures. The force field was also applied to validate the dissociation behavior of sodium hydroxides within the bulk water. Our results with the developed force field are relevant to detailed chemical dissolution mec.
Factors affecting in-stent restenosis and the role of flow-mediated dilatation

Objective: In-stent restenosis is a major problem concerning percutaneous coronary interventions. Brachial artery flow-mediated dilation, a non-invasive indicator of endothelial dysfunction, and its relationship with future cardiovascular events is well known. The aim of this study was to identify factors thought to have an effect on in-stent restenosis and to test the predictive value of flow-mediated dilatation. Method: 74 consecutive patients who were treated with bare-metal stents and recommended control coronary angiography during their follow-up were included into the study. Patients were categorized into 2 groups in the form of those having in-stent restenosis (n=35) and no in-stent restenosis (n=39). Clinical, biochemical, angiographic parameters and also flow-mediated dilatation was evaluated. Results: Flow-mediated dilatation was significantly impaired in patients with in-stent restenosis than in patients with no in-stent restenosis (5.1(4.8) % vs. 9.2(4.1) %, p<0.001). After multivariable analysis; flow-mediated dilatation (p=0.004), stent diameter (p=0.014), stent length (p=0.01), no use of statins (p=0.017) and absence of TIMI-3 flow (p=0.039) were found as independent predictors of in-stent restenosis. According to the receiver-operating characteristic curve analysis, optimal cut-off value of flow-mediated dilatation to predict in-stent restenosis was measured to be ≤6.8%, with 75.8% sensitivity and 78.8% specificity (Area under curve 0.764, 95% confidence interval 0.644-0.885). Conclusions: Our study suggested that flow-mediated dilatation may contribute to the identification of high-risk patients who will develop in-stent restenosis after percutaneous coronary interventions.
MORPHOLOGICAL AND PHYSIOLOGICAL RESPONSES OF SOME OLIVE CULTIVARS SEEDLINGTO DIFFERENT CALCIUM CARBONATE LEVELS AND DROUGHT IN SOIL.

: The Morphological and physiological responses of 6 olive cultivars seedlings namely; “Agezee”, “Koroneiki”, “Picual”, “Nebal”, “Manzanillo” and “Coratina” to three levels of calcium carbonate in soil (9.4%, 22% and 38.1% CaCO 3 ) and two irrigation levels which were 60% and 30% available water “A.W” were studied during two successive seasons, 2012 and 2013.The present study was achieved on one-year old seedlings grown in black plastic bags under saran green house conditions at the experimental farm of the Fac. of Agric. at Demo, Fayoum, Egypt. A negative relationship was found between CaCO 3 % in soil and/or deficit irrigation on growth Parameters of seedlings (plant height, leaf area, total shoot length/plant, dry weight/plant, root length density), total chlorophyll (mg/g fresh weight) and total carbohydrate %. There were great differences among cultivars in their response to CaCO 3 % in soil and drought. The cvs. that were most tolerant are “Nebal” followed by “Agezee” but “Coratina”, “Koroneiki” and “Manzanillo” were most susceptible; while “Picual” was intermediate tolerant.
Monitoring of DNA Polymerase Theta Movements Through FRET Analysis

DNA polymerases are enzymes used for DNA replication during cell division and can be specialized for DNA repair. DNA Polymerase Theta (Pol θ) is the predominant polymerase involved in alternative double-stranded break repair and is upregulated in breast cancer. It is errorprone as it does not accurately match the nucleotide on a DNA template with the correct complementary base. This inaccuracy affects the overall fidelity of the enzyme, a biochemical process that looks at the ability of a polymerase to “read” the template DNA and select the right nucleotide before polymerization. Polymerization for most DNA polymerases involves a global conformational change, specifically of the fingers domain, during insertion of a nucleotide after selecting it into the DNA strand in the active site. If this selection step is compromised, it could lead to the insertion of a non-complementary nucleotide, which could lead to mutations. The fingers domain is hypothesized to move closer to the active site during this process before release of the extended product, where the fingers domain returns to its original conformation. These results have been previously observed in high-fidelity polymerases β and Klenow. Pol β is involved in BER, and the Klenow fragment synthesizes DNA in E.coli. In both studies, the enzyme adopts a closed conformation with correct nucleotide. This study aims to elucidate the mechanism of Pol θ during DNA repair, and how the global movements of this enzyme affects fidelity. Using Fluorescence Resonance Energy Transfer (FRET), we internally fluorescently labeled the fingers domain of Pol θ to observe its interaction with DNA and an incoming nucleotide. Preliminary results suggest that only in the presence of correct nucleotide does Pol θ experience a global conformational change during polymerization to ensure correct matching, suggesting nucleotide selection by Pol θ is monitored in an open conformation and only when the correct pair is formed does polymerization proceed. Our FRET system can be used to further understand the fidelity of Pol θ and how it can lead to cancer. Table of
Analysis of the Results of Psychophysiological Examinations of Personnel of Nuclear Facilities

The link between the health level of an employee and his professional reliability is currently obvious and does not require additional proof. The implementation of measures aimed at reducing the risks of developing emergency situations due to the fault of the human factor at nuclear facilities is an important element of the radiation protection system. In order to achieve the above goals of the organization in accordance with Federal Law No. 170-FZ of 21.11. 1995, the performance of certain types of work in the field of atomic energy use requires special permits from Rostechnadzor. A prerequisite for obtaining such a permit for a specialist is the absence of psychophysiological contraindications based on the results of a psychophysiological examination. In this study, the analysis of the results of psychophysiological examinations (hereinafter referred to as PPhE) of employees of atomic energy facilities, carried out by specialists of the A.I. Burnasyan Federal Medical Biophysical Centre in 2020.
Defending Deep Neural Networks against Backdoor Attack by Using De-trigger Autoencoder

A backdoor attack is a method that causes misrecognition in a deep neural network by training it on additional data that have a specific trigger. The network will correctly recognize normal samples (which lack the specific trigger) as their proper classes but will misrecognize backdoor samples (which contain the trigger) as target classes. In this paper, I propose a method of defense against backdoor attacks that uses a de-trigger autoencoder. In the proposed scheme, the trigger in the backdoor sample is removed using the de-trigger autoencoder, and the backdoor sample is detected from the change in the classification result. Experiments were conducted using MNIST, Fashion-MNIST, and CIFAR-10 as the experimental datasets and TensorFlow as the machine learning library. For MNIST, Fashion-MNIST, and CIFAR-10, respectively, the proposed method detected 91.5%, 82.3%, and 90.9% of the backdoor samples and had 96.1%, 89.6%, and 91.2% accuracy on legitimate samples.
FORMULATION AND IN VITRO EVALUATION OF MATRIX TABLETS OF METOCLOPRAMIDE HYDROCHLORIDE

Objective: The purpose of present study was to formulate oral sustained release matrix tablet of metoclopramide hydrochloride and to evaluate the effect of varying concentrations of hydrophobic and hydrophilic polymers on drug release. Methods: Drug–excipients compatibility studies were carried out by using Fourier transform infrared spectroscopy (FTIR). The matrix tablets were prepared by direct compression technique using Xanthan gum and ethyl cellulose alone and in combination as release retardant. Dicalcium phosphate was used as diluent. The prepared matrix tablets were evaluated for their physicochemical parameters such as weight variation, hardness, friability, content uniformity and in vitro drug release studies were performed using USP-type II (paddle) dissolution apparatus. Results: Pre and post compression parameters were evaluated and all the parameters were found within the limit. The matrix tablets prepared with xanthan gum and combination of xanthan gum and ethyl cellulose were retarded the drug release upto 12 h. Ethyl cellulose alone could not control the drug release for 12 h. The Formulation with drug to xanthan gum (1:1.5), released 97.62 % of drug in 12 h. The kinetic treatment showed that the release of drug follows zero order kinetics (R 2=0.985). Korsmeyer and Peppas equation values of n were found to be in the range of 0.40-0.56, indicating that the drug release mechanism was diffusion. Conclusion: Matrix tablet is the simple, efficient and economic method to sustain the release of metoclopramide to prevent extrapyramidal side effects.
CO477, CO478, CO479, and CO480 inbred lines

Abstract: CO477, CO478, CO479, and CO480 are mid- to late-season [75–81 d to flowering, crop heat units (CHU) = 1720–1855] corn (Zea mays L.) inbred lines with high stalk sugar levels. The level of sugar in the stalks are very high especially when grown as inbred lines. On average, the inbred lines yield three times more sugar than their testcrosses. These inbred lines are the first to be developed and released for biofuel production, from the corn breeding program of Agriculture and Agri-Food Canada. Additionally, these inbred lines can be used for sugar and (or) silage production. They have moderate to intermediate resistance to common rust, eyespot, northern corn leaf blight and fusarium stalk rot but are susceptible to gibberella ear rot.
Application of Principal Component Analysis of Sows' Behavioral Indicators of the Welfare Quality® Protocol to Determine Main Components of Behavior

Understanding behavior is important in terms of welfare assessments to be able to evaluate possible changes in behavior among different husbandry systems. The present study applied principal component analysis (PCA) to reveal relationships between behavioral indicators to identify the main components of sows' behavior promoting feasibility of welfare assessments by providing possibilities for variable reduction and aggregation. The indicators of the Welfare Quality® protocol's principle to assess behavior were repeatedly applied by two observers on 13 farms in Northern Germany. This included Qualitative Behavior Assessments (QBA) to evaluate animals' body language using 20 pre-defined adjectives, assessments of social and exploratory behavior, stereotypies, and human–animal relationship tests. Two separate PCA were performed with respect to the QBA: (1) adjectives were included as independent variables and (2) adjectives were pre-aggregated using the calculation rules of the Welfare Quality® protocol for fattening pigs since a calculation for sows does not yet exist. In both analyses, two components described sows' behavior. Most variance was explained by the solution with adjectives as independent variables (51.0%). Other behavioral elements not captured as indicators by the protocol may still be important for all-inclusive welfare assessments as the required variance of 70% was not achieved in the analyses. Component loadings were used to determine components' labels as (1) “satisfaction of exploratory behavior” and (2) “social resting”. Both components reflected characteristics of sows' natural behavior and can subsequently be used for variable reduction but also for development of component scores for aggregation. As defined for PCA, component 1 explained more variance than component 2. PCA is useful to determine the main components of sows' behavior, which can be used to enhance feasibility of welfare assessments.
Altered

Rating: Teen And Up Audiences Archive Warning: No Archive Warnings Apply Category: F/M, Gen Fandom: Batman (Comics), Superman (Comics), Superman/Batman (Comics) Relationship: Clark Kent/Lois Lane, Friendship Relationship Character: Bruce Wayne, Batman, Clark Kent, Superman, Lois Lane Additional Tags: Thriller, bioweapon, Hurt/Comfort, Illness, Race Against Time, apparently I have themes, clark/Bruce friendship, Kent farm Stats: Published: 2016-09-05 Completed: 2016-09-29 Chapters: 26/26 Words: 80790
Big Loans to Small Businesses: Predicting Winners and Losers in an Entrepreneurial Lending Experiment

We experimentally study the impact of substantially larger enterprise loans, in collaboration with an Egyptian lender. Larger loans generate small average impacts, but machine learning using psychometric data reveals dramatic heterogeneity. Top-performers (i.e., those with the highest predicted treatment effects) substantially increase proﬁts, whereas proﬁts for poor-performers drop. The magni-tude of this difference implies that an individual lender’s credit allocation choices matter for aggregate income. Evidence on two fronts suggests large loans would be misallocated: top-performers are predicted by loan ofﬁcers to have higher default rates; and, top-performers grow less than others when given small loans, implying that allocating larger loans based on prior performance is not efﬁcient. Our results have important implications for credit expansion policy and our understanding of entrepreneurial talent: on the former, the use of psychometric data to identify top-performers suggests a pathway towards better allocation that re-volves around entrepreneurial type more than ﬁrm type; on the latter, the reversal of fortune for poor-performers, who do well with small loans but not large, indicates a type of entrepreneur that we call a “go-getter” who performs well when constrained but poorly when not.
Ecological Features of the Exotic Wasp Vespula Vulgaris L. 1758 (Hymenoptera: Vespidae) Invading the Southernmost Unesco Biosphere Reserve

Invasive alien species may cause substantial changes and damaging impacts in the ecosystems they invade. Here, we document the current distribution and ecological interactions with native biota of the relatively recently introduced wasp, Vespula vulgaris, in the southern part of the Cape Horn Biosphere Reserve. We conducted surveys and field studies in four different habitats on Navarino Island: evergreen, deciduous and mixed forests, and shrublands. The spread of V. vulgaris through the island since its first detection has led to it occupying suitable habitats for nesting and foraging, both in urban and rural settings. The presence of V. vulgaris on islands and remote areas of the CHBR is likely the result of marine human movement through the channels withing the reserve. Wasp foraging composition was different on each of the four studied habitats, yet strongly linked to each habitat’s resources, indicating the inherent ability of V. vulgaris of exploiting surrounding resources efficiently. The lack of natural competitors and availability of multiple resources as allowed V. vulgaris to rapidly become a common pest in urban and rural settings in the southern extreme of South America. In this context, we believe that eradication would be impossible, although it would be possible to control populations at localized scales with proper planning and long-term management. Our results can act as a base for management planning, and we strongly recommend social engagement and dialog with pertinent governmental institutions to achieve this challenging task.
An Invar Alloy SLM Printed Diplexer With High Thermal Stability

This brief presents a selective laser melting (SLM) 3-D printed Ku-band diplexer using dual-mode resonators with high thermal stability. The diplexer is designed using dual-mode dimpled ellipsoid resonators which enables the diplexer mechanically self-supported in fabrication. Hence, the design has higher compatibility with the SLM printing process and the design can be extended to multiplexers with more channels. The excellent thermal stability is benefited from both the 4J36 invar alloy material with a lower coefficient of thermal expansion (C.T.E) as well as the tailored SLM printing process. Electrical and thermal performances of the diplexer are measured, showing that the fabricated diplexer is with average insertion losses of 0.69dB/0.42dB, return losses of >14dB, and centre frequency shifts of 5.62MHz/3.75MHz (<0.04%) in the two channels after copper plating. The measured frequency shift is less than 0.5 MHz over 100°C temperature change, which is equivalent to a C.T. E of 0.5 ppm.
Image restoration and contrast enhancement based on a nonlinear reaction-diffusion mathematical model and divide & conquer technique

In this article, we present a new algorithm for digital image processing noised by mixed Gaussian-impulse noise. Our mathematical model is based on the divide-conquer technique coupled with a reaction-diffusion system. We first decompose our image into low and high-frequency components by convolving each with a predefined convolutional filter. Further, we use a simple scheme of different weights to integrate and collect these processed sub-images into a filtered image. Finally, we apply our Reaction-Diffusion system to increase the contrast in the image. A number of experimental results are described to illustrate the performance of our algorithm and show that it is very effective in eliminating mixed Gaussian-impulse noise, increasing the contrast of the image and preserving the edges.
A low‐profile dual‐band multimode patch antenna for wireless local area network and cellular vehicle‐to‐everything communications

In this article, a low‐profile dual‐band patch antenna for vehicle communication is proposed. With two sets of shorting vias on the hexagonal‐shaped patch at different positions and single feed at the center, three different resonant modes are excited, forming two operating bands with omnidirectional and conical beam radiation respectively. The omnidirectional radiation at 2.45 GHz is used for wireless local area network (WLAN) communication while the conical beam radiation is used for cellular vehicle‐to‐everything (C‐V2X) communication. The proposed antenna is fabricated using the printed circuit technique. Both the measured reflection coefficient and radiation pattern match well with the simulations. With the advantage of low profile, dual‐band, and dual radiation characteristics, the antenna owns a good potential to be used in vehicle communications.
Modia and Julia for Grey Box Modeling

During the process of modelling an existing dynamic physical system, it may be hard to capture some of the phenomena exactly on the basis of only textbook-equations. With measurement data from the real sys-tem, approximators like artificial neural networks can help improve the models. However, simulation and machine learning are usually done in different software applications. A unified environment for modeling, simulation and optimization would be highly valuable. We here present a framework within the Julia programming language that encompasses tools for acausal modeling, automatic differentiation rsp. sensitivity analysis involving solvers for differential equations. We use it to build and evaluate an easily interpretable model based on both physics and data.
Online Risks Research in Teenagers: Survey on Teenagers as Social Media Users in Medan

This research aims to find the trend in teenagers while using social media to gratify their information seeking and to knows how about their social media habits. This research specifically want to find the online risks that encountered by them while looking for information through social media. It shows that teenagers’ use of social media in Medan still in balance between educational needs, such as: doing assignments and looking for information and entertainment needs (eg. Music, video clip and games). Online risks that experienced by them such as receiving messages that make them scared, exposed by images of sexual videos or photos, seen weebsite where people talk about or share their experiences of taking drugs. Meanwhile, contact risks that have been experienced by the teenagers are from giving their private information to a person they have only had contact with online, to being bullied by online.