Miracle-dz/UniFAR-FTUs huggingface dataset:
Practical aspects of formation of professional competence of patrol police officers

Based on the analysis of the scientific literature, the peculiarities of the formation of professional competence of future employees of the National Police of Ukraine and its components are determined. The specifics of service activity of patrol policemen are considered. It is stated that the level of professional competence of police officers is low, and sometimes insufficient. A set of requirements for the professional competence and professionalism of law enforcement officers has been formulated. Areas of professional training that need improvement are outlined. The practical aspects of formation of professional competence of patrol police officers are covered. Practical tools aimed at improving the efficiency of the patrol training process as a professional have been developed. The author's method of forming professionally competent patrol police officers is substantiated, its efficiency is tested. The essence of this technique is to introduce into the educational process of simulated situational tasks, which aim to form professional skills and abilities. The pedagogical experiment involved students of the course of primary professional training of police recruits in 2019 (n = 61), who studied at the center of primary professional training «Police Academy» of the National Academy of Internal Affairs (Kyiv). An experimental (n = 31) and control (n = 30) groups were formed. The experimental group included students who studied the author's method, the control group - students who studied the traditional method of teaching. The effectiveness of the author's methodology was evaluated by cognitive and operational criteria. Cognitive criterion was determined by indicators: 1) knowledge of the legislative unit; 2) knowledge of professional and practical direction. The operational criterion was characterized by the following indicators: 1) the formation of professional and practical skills; 2) the effectiveness of scripting. The results of the pedagogical experiment testified to the effectiveness of the author's method in comparison with the traditional one. The use of the proposed innovations contributed to a significant improvement of the cognitive criterion «Knowledge of professional and practical direction» (p <0.05) and indicators of the operational criterion «Formation of professional and practical skills» (p <0.05) and «Effectiveness of scenarios» ( p <0.001). It was stated that the experimental group had a larger number of people with a high and sufficient level of professional competence in the selected indicators. Prospects for further research are to substantiate the means and methods of forming the professional competence of police officers during training in the training system.
A dual-switch cubic SEPIC converter with extra high voltage gain

To provide a high votage conversion ratio, conventional non-isolated DC-DC boost topologies, which have reduced voltage boost capability, have to operate with extremely high duty cycle ratio, higher than 0.9. This paper proposes a DC-DC converter which is mainly based on the narrow range of duty cycle ratio to achieve extra high voltage conversion gain at relatively reduced voltage stress on semiconductors. In addition, it does include any magnetic coupling structure. The structure of the proposed converter combines the new hybrid SEPIC converter and voltage multiplier cells. From the steady-state analysis, this converter has wide conversion ratio and cubic dependence with respect to the duty ratio and then, can increase the output voltage several times more than the conventional and quadratic converters at the same duty cycle ratio. However, the proposed dual-switch cubic SEPIC converter must withstand higher voltage stress on output switches. To overcome this drawback, an extension of the proposed converter is also introduced and discussed. The superiority of the proposed converter is mainly based on its cubic dependence on the duty cycle ratio that allows it to achieve extra high voltage gain at reduced voltage stress on semiconductors. Simulation results are shown and they corroborate the feasibility, practicality and validity of the concepts of the proposed converter.
The IST spectral portraits of the first order doubly periodic solutions of the nonlinear Schrödinger equation

The spectra of the inverse scattering technique (IST) play a crucial role in the physics of nonlinear phenomena. They define the long term evolution of dynamical systems. We present the IST spectral portraits for the extensive three-parameter families of the first order doubly periodic solutions of the nonlinear Schrödinger equation that cover a wide range of physical phenomena such as modulation instability, rogue waves and many other problems with periodic boundary conditions. We relate these spectral portraits with the parameters of the family. We show that there are two qualitatively different types of spectral portraits. A-type spectra consist of two continuous bands: a band of purely imaginary eigenvalues within the interval [ − i , i ] and a finite band of complex eigenvalues. On the contrary, B-type spectra possess only continuous bands of imaginary eigenvalues all located within the interval [ − i , i ] and separated by a finite band gap. A physical interpretation of these results is given.
Optimization of in vitro culture conditions for obtaining flax( Linum usitatissimum L. cv. Modran) cell suspension culture

Flax (Linum usitatissimum L.) is an ancient crop that is widely cultivated as a source of oil, fiber, and bioactive compounds. Flax fiber is traditionally used in textile industry, linseed oil is processed for industrial oils, paints, varnishes and bio-petroleum. Flaxseeds are also rich in α-linolenic acid and phytochemicals such as lignans. In addition to the commercial aspects, this species has been used widely and readily in biotechnological, developmental, and plant-pathogen interaction studies. Differences in the levels of endogenous hormones in various cultivars of flax significantly affected the intensity of callogenesis and determined the type and concentration of growth regulators necessary for callus production. The aim of our investigation was to optimize the culture conditions for callus formation and cell proliferation in liquid medium of the Polish cultivar of fiber flax – Modran. In the first step, 4 combinations of phytohormones in the medium were tested to obtain established callus tissue suitable for initiation of suspension culture. Next, we investigated the effect of chosen plant growth regulators on cell divisions, fresh and dry weight, and dispersal of callus cells in liquid medium. Fast growing and friable callus was obtained in a modified MS medium supplemented with 0.5 mg/l BAP and 0.1 mg/l NAA. We determined that for the initiation of cell suspension supplementation with 0.5 mg/l BAP and 0.5 mg/l NAA is optimal. The results obtained indicated that high concentration of cytokinin (BAP) in liquid medium limited cell proliferation and decreased biomass formation.
The Adaptive Nature of Stasis for Petal Number: Can Pollinator-Mediated Stabilizing Selection Explain Five-petaled Flowers?

Though angiosperms vary in the number of all four floral organs, stasis is widespread, particularly for petal number in the large group Pentapetalae. This stasis has been considered adaptive, maintained by stabilizing selection. For selection to play a major role in maintaining stasis for petal number, genetic variation must be present. While one explanation for adaptive petal number stasis is pollinator-mediated stabilizing selection, other mechanisms generating stabilizing selection are possible. For example, floral traits are highly integrated, and pleiotropic effects among traits, such as the number of other floral organs might also maintain stasis. Some clades within Pentapetalae, particularly the Polemoniaceae, are known to have low levels of natural within-individual variation for petal number. To test whether this natural variation was due to genetic factors, a selection experiment was conducted using Phlox drummondii (Polemoniaceae), selecting for a higher proportion of four-petaled, six-petaled, and five-petaled flowers. Correlations between petal number and the other three floral organs were measured, as well as their correlated responses to selection on petal number. All four floral organ numbers were correlated, though carpel number was relatively decoupled from the number of the other three organs. Six-petaled flowers were more common than four-petaled flowers, both before and after selection. The heritability and response to selection for a higher proportion of six-petaled flowers was strong and triggered correlated responses in stamen and sepal number, implying shared genetic control. However, the response to selection for a higher proportion of four-petaled flowers was weaker, with no correlated responses. There was no response to selection for a higher proportion of five-petaled flowers. Data suggest that the gain of a petal may be under
Novel immune cell subtypes linked to survival among African American women with triple-negative breast cancer

Triple negative breast cancer (TNBC) is an aggressive disease that is twice as likely to be diagnosed in African American (AA) women compared to white women, with poor clinical outcomes. Tumor infiltrating lymphocytes (TILs) are associated with improved survival for TNBC, but the relevance of TILs and immune cell subtypes to survival in AA women with TNBC is unknown. We evaluated histopathologic TIL counts and molecular characteristics among 60 AA women diagnosed with TNBC with linkage to clinical outcomes using data from the Metropolitan Detroit Cancer Surveillance System. We utilized whole genome expression profiling of TN tumors and cell type deconvolution analysis to evaluate the underlying mechanisms and immune cell subtypes associated with survival patterns in the context of TILs. TILs were significantly associated with improved survival [1-10% Hazard Ratio (HR)=0.32, 95% Confidence Interval (CI) 0.12-0.90, p=0.031; >10% HR=0.18, 95% CI 0.05-0.67, 9.9×10−3]. 524 transcripts (326 coding, 198 non-coding) were associated with TIL levels, 34 of which were associated with both TILs and survival (p<0.05). While only naïve B cells were associated with survival when considering individual cell types [Median HR=2.43, 95% CI 1.07-5.55, p=0.035], increased naïve B cells, plasma cells, and activated NK cells, and decreased resting mast cells, M1 macrophages, and monocytes were associated with transcripts that predicted worse survival. These data provide evidence for novel roles for these immune cells types in TNBC, and further studies are needed to validate these findings and identify determinants of patterns of immune response in TNBC relevant to the AA population. Summary We found that increased naïve B cells, plasma cells, and activated natural killer cells, and decreased resting mast cells, M1 macrophages, and monocytes were associated with expression biomarkers of worse survival among African American women with triple negative breast cancer.
Improved Segmentation and Detection Sensitivity of Diffusion-weighted Stroke Lesions with Synthetically Enhanced Deep Learning.

Purpose To compare the segmentation and detection performance of a deep learning model trained on a database of human-labeled clinical stroke lesions on diffusion-weighted (DW) images to a model trained on the same database enhanced with synthetic stroke lesions. Materials and Methods In this institutional review board-approved study, a stroke database of 962 cases (mean patient age ± standard deviation, 65 years ± 17; 255 male patients; 449 scans with DW positive stroke lesions) and a normal database of 2027 patients (mean age, 38 years ± 24; 1088 female patients) were used. Brain volumes with synthetic stroke lesions on DW images were produced by warping the relative signal increase of real strokes to normal brain volumes. A generic three-dimensional (3D) U-Net was trained on four different databases to generate four different models: (a) 375 neuroradiologist-labeled clinical DW positive stroke cases (CDB); (b) 2000 synthetic cases (S2DB); (c) CDB plus 2000 synthetic cases (CS2DB); and (d) CDB plus 40 000 synthetic cases (CS40DB). The models were tested on 20% (n = 192) of the cases of the stroke database, which were excluded from the training set. Segmentation accuracy was characterized using Dice score and lesion volume of the stroke segmentation, and statistical significance was tested using a paired two-tailed Student t test. Detection sensitivity and specificity were compared with labeling done by three neuroradiologists. Results The performance of the 3D U-Net model trained on the CS40DB (mean Dice score, 0.72) was better than models trained on the CS2DB (Dice score, 0.70; P < .001) or the CDB (Dice score, 0.65; P < .001). The deep learning model (CS40DB) was also more sensitive (91% [95% confidence interval {CI}: 89%, 93%]) than each of the three human readers (human reader 3, 84% [95% CI: 81%, 87%]; human reader 1, 78% [95% CI: 75%, 81%]; human reader 2, 79% [95% CI: 76%, 82%]), but was less specific (75% [95% CI: 72%, 78%]) than each of the three human readers (human reader 3, 96% [95% CI: 94%, 98%]; human reader 1, 92% [95% CI: 90%, 94%]; human reader 2, 89% [95% CI: 86%, 91%]). Conclusion Deep learning training for segmentation and detection of stroke lesions on DW images was significantly improved by enhancing the training set with synthetic lesions.Supplemental material is available for this article. © RSNA, 2020.
Sources of Innovation, Autonomy, and Employee Job Satisfaction in Public Organizations

Abstract There is increasing interest in analyzing job satisfaction and innovation in organizations. This study tests the effects of two internal sources of innovation—top-down innovations (ideas emanating from an agency’s senior leadership) and bottom-up innovations (ideas emanating from employee workgroups)—on employee job satisfaction in public organizations. Data were collected from Australian Public Service employees (n = 4,235). Employing self-determination theory (SDT) as a framework and testing the mediating effect of autonomy, we expect that while top-down innovations are negatively associated with employee job satisfaction, bottom-up innovations are positively associated with employee job satisfaction. Results from structural equation models (SEM) suggest that while top-down innovations do not have a statistical impact on employee job satisfaction, bottom-up innovations are positively associated with employee job satisfaction. Relating innovation sources to job satisfaction has important implications for academics and practitioners, and contributes to the fields of public management, organizational behavior, and public sector innovation.
Effects of Cyanobacterium, Leptolyngbya sp. and green microalga, Chlorella sorokiniana as biofertilizers on in vitro seed priming and seedling growth of some economically important vegetables, Pakistan

The cyanobacterium, Leptolyngbya sp. and green microalga, Chlorella sorokiniana as biofertilizers, play an important role in agriculture development. Due to a lack of information concerning microalgae as biofertilizers in crop production, the present research aimed to evaluate the possibility of increasing growth using microalgae as biofertilizers on seed germination of four commercially important vegetables i.e., radish (Raphanus sativus) subsp. sativus, spinach (Spinacia oleracea), turnip (Brassica rapa) subsp. rapa and fenugreek (Trigonella foenum-graecum). In the current study the fresh biomass of cyanobacterium, Leptolyngbya sp. and green microalga, C. sorokiniana was used as bio-fertilizers to note the effect on seed germination of four vegetables. The In vitro effects of bio-fetilizers were also noted on the different growth parameters i.e., germination percentage, days to germination (50%), plumule length, radical length, fresh weight and dry weight using Randomize Complete Designed (RCD) with factorial arrangement. The results compared with control showed an improved germination percentage using Leptolyngbya sp. (83.17%) and C. sorokiniana (80.47%). Both strains exhibited early germination (4.50 days) while C. sorokiniana showed the maximum plumule (33.88cm), radical length (4.46cm), fresh (1.38g) and dry weight (0.0708g) associated with Leptolyngbya sp. The treatment with B. rapa seed germination was 98.67% and took 1.78 days to germinate. The lowest germination (34.44%) was recorded in S. oleracea and took 6.56 days to germinate. After applying Leptolyngbya sp. on B. rapa and T. foenum-graecum seeds indicated the highest seed germination (99.67%). While B. rapa seeds germinated after one day while primed with C. sorokiniana. The maximum increase over check of germination percentage was observed in Leptolyngbya sp. (11.63%) and C. sorokiniana (8.60%). Both strains improved early germination (3.78%), plumule length (33.88%), radical length (60.31%), fresh weight (7.97%) and dry weight (5.79%).
Chemical Constituents and Biological Functions of Different Extracts of Millettia speciosa Leaves

Millettia speciosa, a traditional Chinese folk medicine, used as immunity enhancer and anti-bronchitis. The study was proposed to investigate phytocomponents and pharmacological activities (antityrosinase, sunscreen and anticancer) of the different fractions of M. speciosa leaves. The sample was extracted with solvents of increasing polarity i.e. petroleum ether (PE), ethyl acetate (EtOAc), methanol (MeOH) and the total flavonoid content for each fraction was determined. The GC-MS analysis revealed various important bioactive compounds. The identified major compounds included beta sitosterol (12.039%), (Z)-9-octadecenamide (6.299%) and gamma sitosterol (4.910%). The highest flavonoid content was recorded for the PE extract i.e. 47.50 ± 0.40%. The PE extract showed significant antityrosinase activity (70.30 ± 0.90 %) with IC50 0.035 mg/ml followed by the MeOH extract i.e. 66.50 ± 1.20% with IC50 0.039 mg/ml. The highest sunscreen activity was noted for the EtOAc extract by observing maximum absorbance value (1.518 ± 0.49) in UVA region followed by 1.214 ± 0.46 in UVB zone. The highest cytotoxicity (29.45 ±1.17% viability) towards MCF-7 breast cancer cells line was noted for the PE extract with IC50 6.73 µg/ml. Overall, our study revealed the presence of potential bioactive compounds for each extract that exhibited significant therapeutic activities and therefore validate the importance of M. speciosa leaves as a source of natural medicine.
MUSLIM CEO AND ISLAMIC SOCIAL REPORTING DISCLOSURE: EVIDENCE FROM INDONESIA

Corporate social responsibility (CSR) has been attracting ever considerable attention from practice and academia, but the determinants of CSR remain unclear. The Islamic principles of vicegerency (khalifah) and brotherhood (ukhuwwah) is seen as closely connected to CSR, called Islamic Social Reporting (ISR). Thus, this study aims to examine the presence of Muslim CEO on ISR disclosure. Using regression analysis, this empirical study covers a sample of firms which are listed in the Jakarta Islamic Index (JII) for the year 2016-2018. The result reveals that Muslim CEO has a positive and significant relationship with ISR disclosure. It suggests that the attribute of board (CEO) has an importance role to enhance ISR engagement among corporation, especially a religion background of CEO as Islam emphasises the relationship between Allah and man and Allah and the environment or the nature.
Accurate identification of urinary isolates: Integration of conventional, automated, and molecular methods

BACKGROUND: Prompt and accurate detection of bacterial pathogens is essential for improving the management of infectious diseases. AIMS: Our study aims at accurate identification of uropathogens through the integration of various methods, thereby highlighting each method of identification. MATERIALS AND METHODS: The present prospective study was conducted in the department of microbiology of a teaching tertiary care hospital of the central India for 1 year 2014–2015. A total of 1202 urine samples were processed. Identification of different urinary isolates was done by conventional, automated, and molecular methods in few special cases. The study did not involve any statistical analysis. RESULTS: A total of 509 samples were found to be culture positive out of the 1202 samples studied. Five hundred and fifty-four uropathogens were isolated from 509 culture positive samples. Among these, the bacterial isolates that could not be identified conventionally were processed through automated and/or 16S ribosomal ribose nucleic acid) (16S rRNA) sequencing. CONCLUSIONS: The use of 16S rRNA gene sequences to study bacterial phylogeny and taxonomy has been the most common housekeeping genetic marker that provides reliability, reproducibility, and higher accuracy during identification of bacterial isolates. Our study has highlighted the importance of each method during the process of identification, thereby developing a high degree of confidence in diagnostic procedures.
Right-wing populism and the criminalization of sea-rescue NGOs: the ‘Sea-Watch 3’ case in Italy, and Matteo Salvini’s communication on Facebook

The contemporary outbreak of right-wing populism in combination with increasing migratory flows toward Europe raises concerns about the social construction of migrations and migrants and the policy orientations toward them. Research indicated worrying tendencies to perceive migrations negatively and criminalize migrants. However, this paper focuses on a different tactic adopted by a number of populist forces: the criminalization of sea-rescue NGOs. In particular, it presents the case-study of Sea-Watch 3, an NGO sea-rescue vessel which docked in Italy with several migrants on board in June 2019, after a long struggle with Minister of Internal Affairs Matteo Salvini, the leader of the League (a right-wing, anti-migrants populist party). By means of content analysis, the paper discusses Salvini’s Facebook communication strategy about the event. The aim of this study is to cast new light on how the criminalization of NGOs can be exploited to reinforce other aspects of right-wing populism, such as anti-elitism, nationalism, exclusionary politics, personalization, and polarization. In this respect, the implications of criminalizing sea-rescue NGOs for policy orientations and policymaking are also highlighted.
Influence of interface pollution on the linear stability of a rotating flow

Abstract The boundary conditions at a liquid–gas interface can be modified by the presence of pollutants. This can in turn affect the stability of the associated flow. We consider this issue in the case of a simple open cylindrical cavity flow where a liquid is set in motion by the rotation of the bottom. The problem is addressed using an experimental set-up, a linear stability code and direct numerical simulation. A robust mismatch between numerical and experimental predictions of the onset of instability is found. We model the possible effect of unidentified pollutants at the interface using an advection–diffusion equation and a closure equation linking the surface tension to the superficial pollutant concentration. The chosen closure is inspired by studies of free-surface flows with surfactants. Numerical stability analysis reveals that the base flow and its linear stability threshold are strongly affected by the addition of pollutants. Pollutants tend to decrease the critical Reynolds number; however, the nonlinear dynamics is less rich than without pollutants. For sufficiently high pollution levels, the most unstable mode belongs to a different family, in agreement with experimental findings.