Miracle-dz/UniFAR-FTUs huggingface dataset:
A systematic overview of secure image steganography

Received Jul 28, 2020 Revised Feb 28, 2021 Accepted Mar 6, 2021 Information is a vital thing that needs to be secured and well protected during transmission between two or more parties over the internet. This can be achieved by steganography technology. Steganography is the concealing science in which the information is concealed inside other information in a way that the concealed information cannot be detectable by the human eye. Many ways are available to hide data inside a cover media for example text, image, and audio steganography, but image steganography is the most utilized technique among the others. Secure image steganography has a highsecurity level than traditional technique by combining steganography with cryptography due to encrypting secret information by cryptography algorithm before embedding it into the cover media by steganography algorithm. In this paper, a systematic review has been presented about secure image steganography and its renowned types. Many researchers proposed secure image steganography by using various cryptography and steganography algorithms which have been reviewed. The least significant bit ‘LSB’ was the renowned steganography algorithm which has been used by researchers due to its simplicity, while various cryptography algorithms like advanced encryption standard (AES) and blowfish have been used to propose secure image steganography in the reviewed papers. The comparison among the reviewed papers indicated that the LSB with hash-RSA gave a greater peak signal-noise ratio ‘PSNR’ value than the others which was 74.0189 dB.
Effect of landscape modification on primate assemblages of the Magdalena River Valley, Colombia

Population and community dynamics are affected by local landscape disturbances, and the answer of each species to these changes could differentially affect species survival. Natural land cover in the Magdalena River valley, Colombia, has been reduced by almost 70 % and fragmented. There inhabit isolated and reduced populations of Alouatta seniculus, Ateles hybridus, Cebus versicolor, and Saguinus leucopus (Primates). To understand the effect of fragmentation over these species, the relationship between altitude, landscape and class metrics, and plant structure and diversity with the population density of these four primates in 20 localities were assessed. Additionally, the relationship between the density of A. hybridus, assumed as a better competitor, and the density of the other primates was assessed. Mean shape index was the most related variable and affected positively the density of A. hybridus, C. versicolor, and S. leucopus and negatively that of A. seniculus. Weight class index was the second more important variable, the four primates increased their density where more mature is the plant cover. Diameter at breast height was positively related with the density of A. hybridus and C. versicolor, negatively related for A. seniculus and not related to S. leucopus density. Tree density was related negatively with the density of A. seniculus and positively with S. leucopus. A. hybridus was related to the density of the other primates, positively to A. seniculus and negatively to the other two species.
The Effects of Humor and Laughter on Induced Anxiety

Much of the previous research into the effects of humor and laughter on arousal has centered on humor’s dual role in arousal reduction where humor is said to temporarily increase arousal during laughter, but induce net arousal reduction when laughter terminates (Bushnell and Scheff, 1979; White, Winzelberg, and Schultz, 1989). This study attempted to expand upon past findings by incorporating a continuous physiological measure of heart rate and the mood checklist Profile of Mood State (POMS; McNair, Lorr, & Droppleman, 1981) that measured the transient and net effects of humor and laughter on a mild induced state of anxiety. Sixty subjects had their arousal elevated utilizing imagery of public situations. Subsequently they viewed either a humorous or a non-humorous videotape related to public speaking situations. Technical complications with the heart rate apparatus caused this data to be invalid. Results from analyses of covariance on the POMS change scores showed that subjects exposed to the humorous videotape had significantly reduced scores on Total Mood Disturbance, Fatigue, and Confusion subscales, and elevated scores of the Vigor subscale on the POMS relative to those subjects exposed to the no-humor videotape. Locus of control was found to have no effect on subjects' perception of humor nor arousal reduction.
The Role of Profitability, Company Size, Capital Structure, and Liquidity Risk on Firm Value of Indonesian Banks

The main objective of any firm is to maximize shareholder's wealth, which can be seen from firm value. This study aims to analyze and explain the effect of profitability, company size, capital structure, and liquidity risk on firm value banking companies in Indonesia. The population of this study is all banking companies listed on the Indonesia Stock Exchange, with an observation period of 2017-2018. The sample selection using a purposive sampling method. Data have both cross-section and time variation. Analysis and hypothesis testing were carried out by using a linear regression analysis using Eviews 11. The results showed that investors viewed that the company's overall profits from its business activities could increase its share price. The capital structure owned by the public relatively small, which meant that the company could provide a source of funds from within the company in the form of the owner's capital or retained earnings. Funds obtained from loans, if they were not followed by the ability to manage funds or were not channeled back to the community, would cause interest expenses and destroy profits. This condition results in investors selling their shares. Investors in making investment decisions paid attention to one indicator at a time and paid attention to all the factors that determined the company's value.
Zn-Doped SnO2 Compact Layer for Enhancing Performance of Perovskite Solar Cells

Perovskite solar cells (PSCs) have been developing rapidly since they were discovered, and their excellent photoelectric properties have attracted wide attention from researchers. The compact layer is an important part of PSCs, which can transport electrons and block holes. SnO2 is an excellent and commonly used electron transport layer (ETL) material, and doping modification is an effective way to improve performance. Here, Zn with a similar radius to Sn has been introduced to the doping of the SnO2 compact layer to achieve the purposes of conductivity enhancement of the compact layer and followed photoelectric performance improvement of the device. Zn-SnO2 compact layers with different doping concentrations were prepared and applied to mesoporous architecture PSCs. When the doping content was 5%, the power conversion efficiency (PCE) of the device based on the Zn-SnO2 compact layer has increased from 9.08% to 10.21%, with an increase of 12.44%. The doping of SnO2 promotes its application in low-cost PSCs.
Ozone Production in Cylindrical Co-axial Double Dielectric Barrier Discharge Ozone Generator

This study developed an ozone generator of a double co-axial cylindrical dielectric barrier discharge system with air, argon, and oxygen as the working gases. The discharge was produced by using a high voltage power supply of 0 - 18 kV and a line frequency of 50 Hz. The flow rate of air, argon, and oxygen was varied from 1 to 6 L/min. A comparison of O3 generation in air, argon, and oxygen using brass as a central electrode was conducted and it was found that O3 concentration was higher in the case of oxygen than in the air and in argon gases environment for given fixed discharge time, applied voltage, and diameter of the brass electrode. This study revealed that the concentration of ozone increased along with the increase in the applied voltage for constant discharge time and gas flow rate. The O3 concentration also increased with the increase in the discharge time at fixed applied voltage and gas flow rate; however, the concentration decreased with the increase in the gas flow rate at fixed discharge time, applied voltage, and diameter of the electrode. A small reactor with a large inner electrode generated a high concentration of O3. Yet, a reactor with a small diameter, there seemed to have an optimum inner electrode diameter. The glass tube reactor of the internal diameter of 18 mm and the brass electrode of diameter 8 mm were utilized in this study. The ozone concentration was higher for oxygen as feed gas than both in the air and in argon and the O3 concentration was also higher in the air than in argon at fixed discharge time, applied voltage, and diameter of ozone generator. HIGHLIGHTS Ozone concentration increases with increasing applied voltage and discharge time but concentration decreases with increasing gas flow rates Low cost ozone can be produced in DBD reactor at atmospheric pressure Oxygen can be used as feed gas to generate high concentration of ozone than other gases inside DBD generator Optimization of central electrode diameter and gap space inside DBD reactor can help to increase ozone concentration, yield, and efficiency Proper choice of central high voltage electrode also can play the important role for the generation of ozone in DBD chamber GRAPHICAL ABSTRACT
Reproducing Fidelity and Scalability of Congestion Control Plane Algorithms

Congestion control algorithms implementation and research continues to be important area of study as new ideas require extensive testing on increasing numbers of application-network stacks or “datapaths” and seek to provide different functionality. This report presents our reproduction of Restructuring Endpoint Congestion Control by Narayan et. al. [7], which explores placing algorithms in a user-space agent outside the datapath. In recreating Figure 10 we find that algorithms run in this mode match congestion window, throughput and delay fidelity of their kernel counterparts fairly accurately under a variety of simulated network conditions. We further replicate Figure 13, noting that multi-flow throughput and CPU utilization scale according to the paper and find that the additional time overhead costs are dominated by context switches. Finally, we briefly attempt to implement TCP Reno using their code for datapath setup [8].
Predicting emergent linguistic compositions through time: Syntactic frame extension via multimodal chaining

Natural language relies on a finite lexicon to express an unbounded set of emerging ideas. One result of this tension is the formation of new compositions, such that existing linguistic units can be combined with emerging items into novel expressions. We develop a framework that exploits the cognitive mechanisms of chaining and multimodal knowledge to predict emergent compositional expressions through time. We present the syntactic frame extension model (SFEM) that draws on the theory of chaining and knowledge from “percept”, “concept”, and “language” to infer how verbs extend their frames to form new compositions with existing and novel nouns. We evaluate SFEM rigorously on the 1) modalities of knowledge and 2) categorization models of chaining, in a syntactically parsed English corpus over the past 150 years. We show that multimodal SFEM predicts newly emerged verb syntax and arguments substantially better than competing models using purely linguistic or unimodal knowledge. We find support for an exemplar view of chaining as opposed to a prototype view and reveal how the joint approach of multimodal chaining may be fundamental to the creation of literal and figurative language uses including metaphor and metonymy.
Safety of cancer patients using morphine: scoping review protocol

Submission: 03/03/2021 Approved: 05/05/2021 ABSTRACT Objective: To map the patient safety practices performed in palliative cancer patients using morphine for pain control. Method: A scoping review to answer the following question: What is the evidence on the patient safety practices performed in palliative cancer patients using morphine for pain control? The search will be carried out in the MEDLINE, LILACS, Scopus, Embase, Web of Science, Cochrane and CINAHL databases, as well as in the gray literature. After the search, all citations will be grouped in the Rayyan software and the duplicates will be removed. Titles and abstracts will be selected by two independent reviewers. The full text of the selected citations will be evaluated in detail in relation to the inclusion criteria by two independent reviewers. The extracted data will be presented in diagram or table formats so that it aligns with the objective of this scoping review, and a narrative abstract will be provided. DESCRIPTORS: Research in Nursing Administration; Patient Safety; Pain Management; Morphine; Drug-Related Side Effects and Adverse Reactions.
Are you getting full benefits from the use of social media? A review combining the concepts of social media, social capital and knowledge sharing

Purpose The social media have become powerful tools that can be used to do much more than connecting relatives and friends, helping find a job or providing advertising space. This study aims to present the benefits of combining the subjects related to Knowledge Sharing, Social Media and Social Capital theory. Design/methodology/approach – Literature review of 22 papers identified as relevant when combining the subjects Social Media, Social Capital and Knowledge Sharing. The 22 documents were subjected of content analysis. Findings – The analysis of the literature revealed two fundamental roles for social media within organizations – an operational role – working as a channel or tool; a transformative role – used to support organizational strategy. Research limitations/implications The limitation of this study is related to the limited number of papers that resulted from the search. Practical implications – The benefits of combining the three subjects include improvements on informal communication, better collaboration and cooperation, and a positive influence on job performance and innovation. Originality/value The proposed research agenda highlights the importance of future investigations into the sharing of tacit knowledge through Social Media; focusing on how to generate trust via Social Media and suggests research attention related to knowledge protection.
h-stability and boundedness results for solutions to certain nonlinear perturbed systems

In this work, we establish some new sufficient conditions to show the uniform h-stability for nonlinear time-varying perturbed systems which can be viewed as an extension of the uniform exponential stability and polynomial stability. Also, we study the boundedness of solutions when the origin is not necessarily an equilibrium point of the perturbed system. The idea is to use some Gronwall type integral inequalities. As an illustration, we present some examples with simulations to show the applicability of the obtained results.
Pesantren and the preservation of traditional religious authority in the digital age

Kiai is the Javanese term of ulama in the traditional Muslim community. It generally refers to a person who has a deep understanding of Islam and leads the institution of traditional Islamic education called pondok pesantren or Islamic boarding school. Indeed, the strength of a Kiai is based on his leadership at the pesantren that has functioned as a space for cultural-social reproduction. While the attention of many researchers focused on the shifting of Islamic authority in the digital age, not much of them paid special attention to the survival of Kiai’s authority. This study aims to examine the role of pesantren in preserving the authority of the Kiai in the digital age. This study employed qualitative method and utilized the cultural reproduction theory of Pierre Bourdieu. This study found that Kiai’s authority continues to survive because pesantren functioned as a space for transmitting cultural values, including the recognition of Kiai’s high position. As a social and cultural reproduction space, pesantren becomes a field that forms habitus through the transmission of its cultural values which is naturally formed in the daily practices of the santri.
Pedestrian age estimation based on deep learning

Received Jan 24, 2021 Revised Mar 23, 2021 Accepted Mar 29, 2021 The large-scale distribution of camera networks in the traffic area resulted in the increasing popularity of video surveillance systems. As pedestrian detection and tracking are the critical monitoring targets in traffic surveillance, many studies focus on pedestrian detection algorithms across cameras. This paper addressed the effect of using the age estimation based on deep convolution neural network (CNN) as a convenience for pedestrian monitoring who is crossing at intersections. Two popular deep convolutional neural networks (DCNNs) pre-trained models have been used in this work, which have recently achieved the best performance in facial features extraction tasks: VGG-Face and ResNet-50. We combined these two models to increase the efficiency of the proposed system. We ran our experiments to evaluate the system based on the VGGFace2 dataset consisting of 3.31 million face images. From the experimental results, we observed a gap in the detection performances between those age groups: children from (00-10) years and elderly with 55 years and more. Moreover, it noted that the proposed pedestrian age estimation model performance is high, also a good result can be obtained by using the model for new purpose.
Seaweed-Based Interventions for Diabetic Complications: An Analytical Discourse

Modern sedentary lifestyle has given rise to a number of health issues; diabetes mellitus is one of them, another worldwide emergency, which is usually attributed either by deficiency or by insensitivity of insulin hormone; the master-regulator of blood glucose level. Seaweeds are rich reservoirs of a plethora of bioactive compounds with a great assortment of therapeutic potential. The goal of this communication is to represent the state-of-the-art about what is known for the anti-hyperglycemic properties recognized in seaweeds, emphasizing about their assets of several bioactive principles, their modes of action over targets of pharmacological interest, in addition to their precise extraction procedures. Various bioactive molecules from seaweed origin, mainly polyphenols, can inhibit several drug targets like α-glucosidase, α-amylase, aldose reductase, protein tyrosine phosphatase 1B, angiotensin-converting enzymes and dipeptidyl peptidase-4 to achieve good glycemic control.
[Rp] Learning to Deceive with Attention-Based Explanations

Learning to Deceive with Attention-Based Explanations by Pruthi et al. makes two claims which we reproduce in this work. Their first claim entails that attention weights can be manipulated to shift mass away from a predefined set of impermissible tokens without significant chance in performance. Their second claim entails that these manipulated models still rely on information from the set of impermissible tokens. In this reproducibility report we argue that by running their experiments, we can reproduce the results which support the claims by Pruthi et al.
Schizophyllum commune Fr. asociado a Hevea brasiliensis (Willd. ex A. Juss.) Müll. Arg. en México

Hevea brasiliensis es la especie de mayor importancia económica del género Hevea, de la cual se obtiene 99 % de la producción mundial de hule natural. En México, durante 2018 se registró una producción total de 75 922 toneladas que se obtuvieron de 28 172 ha plantadas en cinco estados: Chiapas, Oaxaca, Tabasco, Veracruz y Puebla. De ellos, Veracruz ocupa el primer lugar, con 66 % de la producción. Las enfermedades en el árbol del hule afectan la óptima producción de látex en todo el mundo. En 2018, se detectó la incidencia en vivero de una pudrición en tocones de hule injertados con el clon IAN-873 en el municipio Martínez de la Torre; por lo anterior, el objetivo de esta investigación fue identificar el agente asociado a la pudrición de tocones en dicho lugar. Se cultivaron muestras de tejido leñoso con pudrición y micelio en medio Extracto de Malta Agar (MEA) y se incubaron a 28 ± 1 °C por 72 h; se desarrollaron colonias algodonosas, con micelio color blanco-crema. Con base en la morfología del cultivo en el medio MEA y el análisis filogenético cono la secuencia de la región ITS, obtenida mediante la amplificación con los primers ITS5/ITS4 del aislamiento, se identificó a Schizophyllum commune como el hongo asociado a la pudrición de los tocones de H. brasiliensis, lo que corresponde al primer registro para México.
Staphylococcal Enterotoxin Gene Cluster: Prediction of Enterotoxin (SEG and SEI) Production and of the Source of Food Poisoning on the Basis of <italic toggle='yes'>v</italic>SaÎ2 Typing

Currently, only 5 (SEA to SEE) out of 27 known staphylococcal enterotoxins can be analyzed using commercially available kits. Six genes (seg, sei, sem, sen, seo, and seu), encoding putative and undetectable enterotoxins, are located on the enterotoxin gene cluster (egc), which is part of the Staphylococcus aureus genomic island vSab . These enterotoxins have been described as likely being involved in staphylococcal food-poisoning outbreaks. The aim of the present study was to determine if whole-genome data can be used for the prediction of staphylococcal egc enterotoxin production, particularly enterotoxin G (SEG) and enterotoxin I (SEI). For this purpose, whole-genome sequences of 75 Staphylococcus aureus strains from different origins (food-poisoning outbreaks, human, and animal) were investigated by applying bioinformatics methods (phylogenetic analysis using the core genome and different alignments). SEG and SEI expression was tested in vitro using a sandwich enzyme-linked immunosorbent assay method. Strains could be allocated to 14 different vSab types, each type being associated with a single clonal complex (CC). In addition, the vSab type and CC were associated with the origin of the strain (human or cattle derived). The amount of SEG and SEI produced also correlated with the vSab type and the CC of a strain. The present results show promising indications that the in vitro production of SEG and SEI can be predicted based on the vSab type or CC of a
PARENTAL ENGAGEMENT ON CHILDREN CHARACTER EDUCATION: THE INFLUENCES OF POSITIVE PARENTING AND AGREEABLENESS MEDIATED BY RELIGIOSITY

Parents have an important role in introducing character education to children. Positive parenting and agreeableness are considered to have essential influences on parent engagement in children’s character education mediated by religiosity. This study aimed to examine the effects of positive parenting and agreeableness towards parental engagement in character education with religiosity as the mediator. Data were obtained using five instruments, namely the parental engagement scale, agreeableness scale, religiosity scale, Islamic knowledge test items, and the positive parenting scale. The population of this research was the parents of students of Muhammadiyah elementary schools located in the Special Region of Yogyakarta, Indonesia. By cluster random sampling technique, the study involved 210 parents. The collected data were analyzed using the SEM technique. The results of this study show that: (1) there was a significant relationship between positive parenting and agreeableness on parental engagement, (2) religiosity worked as a mediator of the relationship between positive parenting and agreeableness in parental engagement, and (3) religiosity worked better as the mediator of agreeableness than positive engagement. It was concluded that the correlation between agreeableness and parental engagement would not be formed without religiosity as a mediator.