Miracle-dz/UniFAR-FTUs huggingface dataset:
Investigating the Adoption of an Innovation Using an Extended Utaut Model: the Case of Mobile Learning Technology

Covid-19 pandemic is unleashing unprecedented digital revolution in educational systems, making mobileenabled learning is unavoidable alternative option, especially in developing countries whereby university students have no option but to use smartphones for learning as desktop and laptop computers are becoming less popular at homes. To achieve the objectives of this study, this study extends the UTAUT model by incorporating three different mechanisms to enhance the UTAUT environment to investigate mobile learning adoption and enrich both theory and practice. The UTAUT theory was extended by incorporating three exogenous variables (perceived compatibility, perceived image, and perceived mobile anxiety), the endogenous variable of perceived innovativeness, and service quality as a moderator. The empirical data was collected using a survey questionnaire administered to higher education students in Jordan. The proposed research model was tested with the use of WarpPLS using 202 useable questionnaires. The results demonstrate that all hypotheses were found statistically significant, indicating that all variables included in this study play an important role in affecting the adoption process of mobile learning. The findings reveal that the research model explains 53% of the variance in the intention to adopt mobile learning. Theoretical contributions and practical implications are discussed. © 2022 Little Lion Scientific.
Fear Of Covid-19 And Hope: Mediating Role Of Spirituality

Objectives: This study investigated the mediating role of spirituality between fear of covid-19 and hope among general population. It was assumed that fear of corona may create hopelessness among adult population while spiritual orientation might buffer the role of hopelessness. It was also assumed that in adult population, fear was likely to be the negative and spirituality to be the positive predictor of hope. Methodology: Quantitative research design was followed and the convenient sampling technique was used. A sample of N=180, consisting of both, men and women were approached through google form, containing consent, demographics, fear of COVID-19, daily spiritual experience (DSE) and adult hope scale (AHS). Reliability of the scales were α . 71, . 85, . 85 respectively. Pearson product moment correlation analysis was used to assess relationship among fear of COVID-19, spirituality and hope. Linear regression was applied to assess the fear of corona virus and spirituality as the predictors of hope and spirituality. Mediation analysis (through) Process was applied to investigate the spirituality to be the mediator between fear and hope. Results: Positive relationship among fear of corona virus, spirituality and hope was identified. Fear of corona virus and spirituality emerged as predictors of hope. Mediation analysis indicated that the spirituality mediates the relationship between hope and fear of COVID-19. Conclusion: It is concluded from results that due to covid-19, the adult population, have fear of corona virus and are losing hope, but people with good spiritual foundation have less fear and
STABILITY OF HARMONIC MAPS AND EIGENV ALVES OF THE LAPLACIAN

The index and nullity of the Hessian of the energy for every harmonic map arc estimated above by a geometric quantity. The stability theory of harmonic maps is developed and as an application, the Kahler version of the Lichnerowicz-Obata theorem about the first eigenvalue of the Laplacian is proved.
Expression of p53 in early (Ti) gastric carcinoma and precancerous adjacent mucosa

Abnormalities of the tumour suppressor gene p53 have been shown in approximately 60% of advanced gastric adeno-carcinomas and it has been suggested that the immunohistochemical finding of increased p53 expression is a prognostic marker in gastric cancer. No studies of early (T1) tumours have been reported. Over expression of p53 protein in 95 early gastric carcinomas and in adjacent mucosa was investigated using immunohistochemistry with antibody CM1. Thirty five per cent ofthe tumours were positive. The frequency of p53 positivity in tumours of tubular histological type (46%) was significantly higher than that in signet ring
Cell-based therapies for experimental chronic kidney disease: a systematic review and meta-analysis

Cell-based therapy is a promising strategy for treating chronic kidney disease (CKD) and is currently the focus of preclinical studies. We performed a systematic review and meta-analysis to evaluate the efficacy of cell-based therapy in preclinical (animal) studies of CKD, and determined factors affecting cell-based therapy efficacy in order to guide future clinical trials. In total, 71 articles met the inclusion criteria. Standardised mean differences (SMD) and 95% confidence intervals (CI) were calculated for outcome parameters including plasma urea, plasma creatinine, urinary protein, blood pressure, glomerular filtration rate, glomerulosclerosis and interstitial fibrosis. Sub-analysis for each outcome measure was performed for model-related factors (species, gender, model and timing of therapy) and cell-related factors (cell type, condition and origin, administration route and regime of therapy). Overall, meta-analysis showed that cell-based therapy reduced the development and progression of CKD. This was most prominent for urinary protein (SMD, 1.34; 95% CI, 1.00–1.68) and urea (1.09; 0.66–1.51), both P<0.001. Changes in plasma urea were associated with changes in both glomerulosclerosis and interstitial fibrosis. Sub-analysis showed that cell type (bone-marrow-derived progenitors and mesenchymal stromal cells being most effective) and administration route (intravenous or renal artery injection) were significant predictors of therapeutic efficacy. The timing of therapy in relation to clinical manifestation of disease, and cell origin and dose, were not associated with efficacy. Our meta-analysis confirms that cell-based therapies improve impaired renal function and morphology in preclinical models of CKD. Our analyses can be used to optimise experimental interventions and thus support both improved preclinical research and development of cell-based therapeutic interventions in a clinical setting.
Weathering of sandstone by alunogen and alum salts

Abstract In many places in eastern Germany, the Czech Republic and southern Poland, outcrops of the Elbsandstein are undergoing rapid honeycomb weathering and scaling in the presence of gypsum, alunogen and alum salts. Laboratory experiments have been undertaken to test the relative efficacy of these salts as weathering agents. Cubes of Lower Cretaceous sandstone from West Sussex have been repeatedly soaked in salt solutions and then oven dried at 50°C. The experiments show that alunogen causes relatively little damage, but alum salts are highly destructive, especially if gypsum is present. The addition of gypsum reduces the damaging effects of alunogen, while gypsum on its own causes minimal weathering.
Species recognition limits mating between hybridizing ant species

Identifying mechanisms limiting hybridization is a central goal of speciation research. Here, we studied premating and postmating barriers to hybridization between two ant species, Formica selysi and Formica cinerea. These species hybridize in the Rhône valley in Switzerland, where they form a mosaic hybrid zone, with limited introgression from F. selysi into F. cinerea. There was no sign of temporal isolation between the two species in the production of queens and males. With choice experiments, we showed that queens and males strongly prefer to mate with conspecifics. Yet, we did not detect postmating barriers caused by genetic incompatibilities. Specifically, hybrids of all sexes and castes were found in the field and F1 hybrid workers did not show reduced viability compared to nonhybrid workers. To gain insights into the cues involved in species recognition, we analyzed the cuticular hydrocarbons (CHCs) of queens, males, and workers and staged dyadic encounters between workers. CHC profiles differed markedly between species, but were similar in F. cinerea and hybrids. Accordingly, workers also discriminated species, but they did not discriminate F. cinerea and hybrids. We discuss how the CHC‐based recognition system of ants may facilitate the establishment of premating barriers to hybridization, independent of hybridization costs.
Turing cationic antimicrobial peptide KR-12 into Self-assembled nanobiotics with potent bacterial killing and LPS neutralizing activities

Gram-negative sepsis has become one of major increasing medical burdens globally, which is subjected to growing antibiotic resistance problem and the relatively delayed development of new antibiotics. LL-37, the only type of Cathelicidin identi�ed in humans, has diverse biological activities including direct bactericidal action, regulation of in�ammation and LPS-neutralization. The KR-12 peptide is the smallest portion of LL-37 with antibacterial action, which has been shown that could be modi�ed into more effective antimicrobials. Here, we synthesize two myristoylated derivatives of KR-12, Myr-KR-12N and Myr-KR-12C, which can spontaneously form nanoparticles when mixed with deionized water. We show that myristoylated KR-12 derivatives possess a broad-spectrum and more powerful bactericidal activity through interrupting the membranes of bacteria. Myr-KR-12N rescues mice from lethal sepsis induced by E. coli, even more potent rescuing activity than meropenem. We also demonstrate that myristoylated KR-12 nanobiotic can signi�cantly bind with LPS and inhibit the in�ammation in vitro and Myr-KR-12N rescue mice from LPS-induced sepsis in vivo, even more potent rescuing activity than polymyxin B. Toxic experiments indicate that neither Myr-KR-12N nor Myr-KR-12C nanobiotics exhibits meaningful hemolytic activity, liver and kidney injury. We thus developed a novel nanobiotic with dual bactericidal and LPS-neutralization properties, which may provide good insights for clinical translation of antimicrobial peptides and the creation of new antibiotics.
A fluid inclusion and stable-isotope study of hydrothermal vein mineralization, Schwarzwald district, Germany

A combined fluid inclusion and stable isotope study has been carried out on over 180 individual samples from 89 post-Variscan hydrothermal veins (Pb-Zn-Cu-bearing fluorite-barite-quartz veins, Co-Ni-Ag-Bi-U-bearing barite-fluorite-quartz veins and barren barite-fluorite-quartz veins) from the Schwarzwald district, Germany. The salinities of fluid inclusions in post-Variscan primary fluorite, calcite, barite and quartz are in the range of 22–25 wt. % equivalent (eqv.) NaCl, and the eutectic temperatures range between –57 and –45°C, indicating the presence of H2O-NaCl-CaCl2 fluids. Homogenization temperatures vary from 130 to 180°C. A low-salinity fluid (0 to 15 wt.% eqv. NaCl) was observed in some late stage fluorite, calcite and quartz samples, which were trapped similar temperature, range of high salinity fluids. Raman microprobe analyses show that the only detectable volatile in the vapour is CO2. Almost all δ18O (n=86) measurements of quartz from the fluorite-bearing post-Variscan veins range between +11.1 and +20.9 ‰. The calculated δ18OH2O values are between –11.0 and +4.4 ‰, using known quartz-water fractionation and fluid inclusion homogenization temperatures. The δ18OH2O values of directly extracted fluid inclusion water of fluorites range from –11.6 to +1.1 ‰, very consistent with the calculated values. The δD values of fluid inclusion water in calcites (extracted from primary and late calcite samples) lie in a narrower range between –26 and –15 ‰. The extracted fluid inclusion water from quartz samples has significantly more variable δD values between –63 and +9 ‰. The δ13C and δ18O values of fluid inclusion gas (CO2) range between –21.4 and –6.7 ‰ and between –16.3 to –7.1 ‰, respectively. Calculations for fluorite-barite-quartz veins combining oxygen isotope equilibria with microthermometric data result in quartz precipitation temperatures of 120–170°C at pressures between 0.3 to 0.5 kbar. The δ18OH2O and δD data, particularly the observed wide range in hydrogen isotopic compositions, indicate that the hydrothermal mineralization formed through large-scale mixing of a basement-derived saline NaCl-CaCl2 brine with meteoric water.
UNDERSTANDING CLOUD BASED ENTERPRISE RESOURCE PLANNING ADOPTION AMONG SMES IN JORDAN

The purpose of this research is to empirically examine the factors influencing the intention to adopt cloud based Enterprise Recourse Planning (CB-ERP) as well as the moderating role of trust on the interrelationship. A quantitative approach through a survey questionnaire was conducted to measure the collected data. The data of 117 participants were gathered using online-based survey questionnaires. Besides, this study adopted the Smart Partial Least Square Structural Equation Modeling (Smart PLS-SEM), where the data analysis took place to test the hypotheses. Furthermore, to support the finding, this study proposes a theoretical model based on Technology acceptance model (TAM). The finding PLS-SEM analysis pointed out that all proposed factors have a significant effect on intention to adopt cloud based Enterprise Recourse Planning. Additionally, this research found that trust has a significant impact on the relationship between determinants and intention to adopt CB-ERP at SMEs in Jordan. Finally, some practical and theoretical contributions to cloud computing literature, research limitations and future research directions are provided.
ENHANCED SPATIAL PYRAMID POOLING AND INTERSECTION OVER UNION IN YOLOV4 FOR REAL-TIME GROCERY RECOGNITION SYSTEM

The ability to recognize a grocery on the shelf of a retail store is an ordinary human skill. Automatic detection of grocery on the shelf of retail store provides enhanced value-added to consumer experience, commercial benefits to retailers and efficient monitoring to domestic enforcement ministry. Compared to machine vision-based object recognition system, automatic detection of retail grocery in a store setting has lesser number of successful attempts. In this paper, we present an enhanced YOLOv4 for grocery detection and recognition. We enhanced through spatial pyramid pooling (SPP) and Intersection over union (IOU) components of YOLOv4 to be more accurate in making recognition and faster in the process. We carried an experiment using modified YOLOv4 algorithm to work with our new customized annotated dataset consist on 12000 images with 13 classes. The experiment result shows satisfactory detection compare to other similar works with mAP of 79.39, IoU threshold of 50%, accuracy of 82.83% and real time performance of 61
Strategies for promoting sustainable use and conservation of indigenous chicken breeds in Sub-Saharan Africa: Lessons from low-income countries [version 3; peer review: 1 not approved]

This review explores innovative and sustainable strategies for the utilization and conservation of indigenous chickens (IC) (Gallus domesticus) in Sub-Saharan Africa (SSA), drawing lessons from selected low-income countries. Small-scale farmers (SSF) have kept IC for hundreds of years to meet their households' nutritional needs, incomes
Quasiresonant ampli ﬁ cation of planetary waves and recent Northern Hemisphere weather extremes

In recent years, the Northern Hemisphere has suffered several dev-astating regional summer weather extremes, such as the European heat wave in 2003, the Russian heat wave and the Indus river ﬂ ood in Pakistan in 2010, and the heat wave in the United States in 2011. Here, we propose a common mechanism for the generation of persistent longitudinal planetary-scale high-amplitude patterns of the atmospheric circulation in the Northern Hemisphere midlatitudes. Those patterns — with zonal wave numbers m = 6, 7, or 8 — are characteristic of the above extremes. We show that these patterns might result from trapping within midlatitude waveguides of free synoptic waves with zonal wave numbers k ≈ m. Usually, the qua-sistationary dynamical response with the above wave numbers m to climatological mean thermal and orographic forcing is weak. Such midlatitude waveguides, however, may favor a strong magni-ﬁ cation of that response through quasiresonance.
When Do German Firms Change Their Dividends? When Do German Firms Change Their Dividends?

Anecdotal evidence suggests that the dividend policy of German firms is more flexible than the one of their Anglo-American counterparts. This paper analyses the decision to change the dividend for a panel of 221 German firms from 1984 to 1994. The choice of the period of study is motivated by the fact that at the start of this period there was an economic boom which was followed by a recession. Consistent with the traditional dividend literature, e.g. Lintner (1956), net earnings are key determinants of the decision to change the dividend. However, the study comes up with two findings which are contrary to Lintner (1956) and Miller and Modigliani (1961). First, the level of net earnings is not the only key determinant of the dividend decision, as the occurrence of a loss – whatever its magnitude – has an explanatory power exceeding the one of the level of the loss. Second, dividend cuts or omissions tend to be temporary and the majority of German firms quickly (within two years) revert to their initial dividend level. This stands in marked contrast with DeAngelo et al. (1992) who find that US firms are more likely to reduce their dividend when earnings deteriorate on a permanent basis. Furthermore, the fact that German firms frequently omit and cut their dividend and quickly return to their initial dividend suggests that dividends in Germany have less of a signalling role than dividends in the US and the UK. Our findings also contradict Bhattacharya's (1979) argument that the costs of dividend changes are asymmetric with dividend reductions being more costly to the firm than dividend increases. Finally, we find evidence that firms with banks as their major shareholder are more willing to omit their dividend than firms controlled by other types of shareholder. for comments and suggestions. All remaining errors are the ones of Luis Correia da Silva.
The effects of workplace spirituality and work satisfaction on intention to leave

The objective of this study was to examine the effects of workplace spirituality and work satisfaction on intention to leave the organization. A sample of seventy-one graduate students in the MBA program at the selected public university was gathered in October to November in 2015 for data collection by using a self-administrated questionnaire. The results indicated that workplace spirituality and work satisfaction had a significant negative effect on intention to leave at 0.01 level. In short, the findings found that workplace spirituality significantly influenced the intention to leave (β = -.295, p <.01), as did work satisfaction (β = -.249, p < .05). The discussion and recommendations for the further studies were also discussed.
Job Stress in the Cybersecurity Incidence Response Work Role

An exploratory study was conducted to examine job stress in the cybersecurity workforce. Interviews with fourteen cyber-security professionals provided rich contextual descriptions of their typical work day; what they like most about their jobs; the extent to which they experience job stress; the sources of their high or low self-reported stress levels; and the impacts they have experienced. Study findings suggest that high levels of job stress inherent in the incidence response (IR) work role is a contributing factor to the skill shortage in the “protect and defend” cybersecurity work category defined by the U.S. NICE. Job stress factors were identified in IR work. Finally, the study concludes with recommendations on how to reduce job stress for IR workers. The aim is to reduce job turnover in the IR work role and thus retain a sought-after skillset that informants consistently indicated takes several years to build.
THE PERCEIVED EASE OF USE IN MOBILE PAYMENT SUPPORT BY RESPONSIVENESS, SMARTNESS AND MOBILITY

Technology continues to develop, including payment media made online through applications. The presence of technology in payment applications aims to facilitate users and support user performance in their activities. Mobile payment e-wallet is one of the payment media currently increasing in use in Indonesia. Several advantages are considered capable of influencing the use of mobile payment e-wallets. Based on the phenomenon of the problem that occurs, the purpose of this study is to examine factors that can increase the perceived ease of use of mobile payment users, including responsiveness, smartness, and mobility. The research method used in this study is a survey with quantitative data; a survey was conducted to 290 respondents of mobile payment e-wallet users in Bandung (Indonesia). Data from respondents was obtained using a questionnaire; then the data was tabulated and processed by linear regression analysis to find a factor analysis model. The analytical tool used in SPSS was used to process the linear regression analysis also to test the research instrument. The research hypothesis was tested to confirm the factor analysis model. The model tested is then assessed for the level of moderation through gender, namely men and women as one of the characteristics of mobile payment users. Based on the test results, it is known that mobility, responsiveness, and smartness assessed by mobile payment e-wallet users have a positive relationship with the ease-of-use percentage. The essence of this study explains that perceived ease of use can be controlled by supporting factors, namely the mobility of the use of e-wallet, the level of responsiveness of the application, and the view of smartness in using an e-wallet. There is a moderation based on gender, and research findings explain that male gender supports the relationship between responsiveness and mobility, while female gender only supports the relationship between mobility and perceived ease of use. The findings of this study can be used as recommendations for e-wallet service providers in Indonesia, especially banking; several things that are considered by users that need to be considered in mobile payments are mobility, responsiveness, and smartness
MAJORIZATION IN DE BRANGES SPACES.

This paper is a part of a series dealing with subspaces of de Branges spaces of entire functions generated by majorization on subsets of the closed upper half-plane. In the present, third, part the study of a certain Banach space generated by an admissible majorant is continued. The main theme is “invariance of the unit ball with respect to division by Blaschke products”. In connection with this topic, representability via special types of majorants plays an important role. Some (positive and negative) results on invariance under division by Blaschke factors are obtained, and the unit balls representable by log-superharmonic majorants are characterized.
Is Tooth Enamel Carbonate a Suitable Material for Radiocarbon Dating?

We present the results of 18 radiocarbon determinations on the carbonate fraction of tooth enamel prepared from nine separate teeth. The known ages of the teeth vary from 11 to >200 ka bp, and are from three sites. The sample preparation procedures varied somewhat, but were broadly based on procedures found to give satisfactory results on carbon stable isotope measurements. All the 14C dates obtained are too young, by an equivalent contamination of ca. 6% Modern (pMC). This value is fairly consistent despite variations in sample preparation. We discuss the implications for using enamel as a possible alternative to bone when insufficient collagen is available.