Influence of slope incline on the ejection of two-phase soil splashed material

Soil splash is the first step in the process of water erosion, where impacting raindrops cause the detachment and transport of soil material. One of the factors that strongly influences the magnitude of soil splash is the incline of the surface (slope). The aim of this study was to investigate the effect of the slope on the course of the splash phenomenon caused by single-drop impact (one drop impact per soil sample), with respect to the mass and proportions of the ejected material, taking into account its division into solid and liquid phases i.e. soil and water. The investigation was carried out using three types of soil with different textures, in moistened (pressure head corresponding to -1.0 kPa) and air-dry (-1500 kPa) conditions. The soil samples were on three angles of slope, being 5°, 15°, and 30°, respectively. After a single-drop impact with a diameter of 4.2 mm, the ejected material was collected using a splash cup. The following quantities of splashed material were measured: the total mass, the mass of the solid phase, and the mass of the liquid phase. Additionally, the distribution and proportions (soil/water) of the splashed material were analysed in both the upslope and downslope directions. It was found that: (i) the change of slope had a variable influence on the measured quantities for different soils; (ii) in the case of moistened samples, the measured values were mainly influenced by the texture, while in the dry samples, by the angle of the slope; (iii) with the increase of slope, the splashed material was mostly ejected in the downslope direction (irrespective of moisture conditions); (iv) in the moistened samples, the ejected material consisted mostly of water, while in the dry samples it was soil—this occurred for material ejected both upslope and downslope. The obtained results are important for improving the physical description of the process of splash erosion. A more thorough understanding and better recognition of the mechanisms governing this phenomenon at all stages could contribute to the development of more effective methods for protecting soil against erosion.

PENGARUH PENGETAHUAN PERPAJAKAN TERHADAP KEPATUHAN WAJIB PAJAK KENDARAAN BERMOTOR DI KANTOR SAMSAT KOTA TOMOHON

Abstrak Riset ini bermaksud demi mengetahui apakah pengaruh pengetahuan perpajakan terhadap kepatuhan wajib pajak di Kantor SAMSAT Kota Tomohon. Pada riset ini variabel kepatuhan wajib pajak menjadi variabel dependen. Sampel pada pengkajian ini sebanyak 100 wajib pajak serta diambil memakai rumus Slovin. Metode yang dipergunakan dalam riset ini ialah metode survei dengan pendekatan kuantitatif. Pada riset ini data primer dikumpulkan dengan cara teknik pengumpulan data observasi, dokumentasi serta angket/kuesioner, adapun teknik analisis data yang digunakan pada pengkajian ini ialah analisis regresi sederhana dengan uji normalitas, uji linieritas, dan uji hipotesis. Hasil pengkajian ini adanya dampak positif dan signifikan mengenai dampak pengetahuan perpajakan terhadap kepatuhan wajib pajak kendaraan bermotor di mana persamaan regresi sederhana dalam riset ini menunjukkan nilai koefisien Regresi X sebesar 0.072 memperlihatkan ternyata setiap penambahan 1% pengaruh pengetahuan perpajakan, maka nilai kepatuhan wajib pajak kendaraan bermotor bertambah sebesar 0.072. Koefisien regresi tersebut bernilai positif, sehingga dapat dikatakan bahwa dampak variabel X terhadap Y ialah positif. Dengan demikian variabel pengaruh pengetahuan perpajakan berdampak signifikan atas kepatuhan wajib pajak kendaraan bermotor di Kantor Samsat Kota Tomohon. Kata Kunci : Pengetahuan Perpajakan, Kepatuhan Wajib Pajak Abstract This research intends to find out whether the influence of tax knowledge on taxpayer compliance at the Tomohon City SAMSAT Office. In this research, the taxpayer compliance variable becomes the dependent variable. The sample in this study was 100 taxpayers and was taken using the Slovin formula. The method used in this research is a survey method with a quantitative approach. In this research, primary data were collected by means of observation data collection techniques, documentation and questionnaires, while the data analysis techniques used in this study were simple regression analysis with normality test, linearity test, and hypothesis testing. The results of the study are that there is a positive and significant impact on the impact of tax knowledge on motor vehicle taxpayer compliance where the simple regression equation in this research shows the X regression coefficient value of 0.072 showing that all 1% additions affect tax knowledge, then the motor vehicle taxpayer compliance value increases by 0.072. The regression coefficient is positive, so it can be said that the impact of variable X on Y is positive. Thus the variable influence of tax knowledge has a significant impact on motor vehicle taxpayer compliance at the Tomohon City Samsat Office. Keywords: Tax Knowledge, Taxpayer Compliance

MIRA: Joint regulatory modeling of multimodal expression and chromatin accessibility in single cells

Rigorously comparing gene expression and chromatin accessibility in the same single cells could illuminate the logic of how coupling or decoupling of these mechanisms regulates fate commitment. Here, we present MIRA: Probabilistic Multimodal Models for Integrated Regulatory Analysis, a comprehensive methodology that systematically contrasts transcription and accessibility to infer the regulatory circuitry driving cells along developmental trajectories. MIRA leverages joint topic modeling of cell states and regulatory potential modeling of individual gene loci. MIRA thereby represents cell states in an efficient and interpretable latent space, infers high fidelity lineage trees, determines key regulators of fate decisions at branch points, and exposes the variable influence of local accessibility on transcription at distinct loci. Applied to epidermal maintenance differentiation and embryonic brain development from two different multimodal platforms, MIRA revealed that early developmental genes were tightly regulated by local chromatin landscape whereas terminal fate genes were titrated without requiring extensive chromatin remodeling.

Ways to optimize the training process for the development special working capacity of skiers-racers

The article considers the development of special working capacity of skiers-racers with the use of work-rest regimes, which is an effective means of selective influence on the indicators of general and special working capacity, coordination structure of movements, reactions of body service systems. The purpose of this study is to determine the effect of different modes of alternation of work with rest and the tasks of action in the training lesson when using the segment of 1000-2000 m on the change of individual elements of technology, speed, speed endurance when overcoming climbs. Objective of the study: to determine the cumulative effect of the use of different modes of alternation of work with rest on the change of the main indicators of special performance of skiers in the process of training lessons. The research methodology consisted of the use of repeated functional loads. A technical and tactical model of competitive behavior at a distance in the process of training and competition depending on the conditions and relief of the competitive distance is proposed. A comparative analysis of the effectiveness of the use of training programs at different stages of sports training showed the advantage of the method of development of special ability to work, based on the principle of selective and variable influence of lesson models with known effects on the athlete. The results of research allow us to create models of training lessons that selectively affect different body systems and contribute to more accurate management of the development of special working ability. The use of these models in the general structure of the methodology for the development of special working capacity creates an opportunity to comprehensively influence the person as a complex organized system of self-regulation. The practical use of the research results optimizes the process of sports training management for a longer period of time.

PENGARUH SUSTAINABILITY REPORT TERHADAP KINERJA KEUANGAN PERUSAHAAN

This study aims to examine the impact of disclosure of sustainability economic (EC), social dimension (SO) and environmental dimension (EN) on issuer's financial performance in 2012-2015 period in mineral and mineral mining sector, energy, gas and petroleum, and infrastructure, and companies that won the SRA (Sustainability report Award) competition in 2015, each winning 1, 2, 3. The research method used in this research is quantitative approach, using cross section data. and it have 40 sample of firm. The independent variables in this study are sustainability reports as measured by economic dimensions (EC), Social (SO), and Environment (EN). The dependent variable in this study is the company's financial performance which can be measured by liquidity ratio, solvability, activity, profitability and investment. Regression used in this research is multiple regression. The result of the research shows that there is influence of sustainability report of economic dimension (EC) with company financial performance. The sustainability report of social dimension and environmental dimension has no effect on company's financial performance. The results of this study are expected to provide benefits to companies, investors, and other stakeholders in the various functions of sustainability reporting mechanisms. The author uses only one control variable are firm size, if adding another control variable, there may be an independent variable influence on the dependent.

Pengaruh Biaya Produksi dan Biaya Promosi Terhadap Laba Bersih (Studi Pada Perusahaan Roti PT. Nippon Indosari Corpindo Tbk Yang Terdaftar Di Bursa Efek Indonesia Periode 2014-2019)

<div class="page" title="Page 1"><div class="layoutArea"><div class="column"><p><span>The purpose of this research is to find out the influence of production costs and promotional costs on net income at PT NIC Tbk which has been listed on the IDX for the 2014-2019 period. Meanwhile, in this research, quantitative methods are used and multiple linear regression analysis is used. The results found in this research are that the production cost variable can have a significant effect on net income, which can be proven through the value of t count = 7.299 (greater than t table = 2.447) and significant value = 0.000 (smaller than t table = 2.447) 0.05), so that hypothesis 1 can be accepted, while the promotion cost variable can also have a significant effect on net income, it can be proven through the t count = 5.881 (greater than t table = 2.447) and the significant value = 0.000 (less than 0.05), so hypothesis 2 can be accepted. The variable influence of production costs and promotion costs has a significant influence on the net profit of PT NIC Tbk which has been listed on the IDX for the 2014-2019 period of 20.8%. </span></p><p> </p></div></div></div>

Butterfly declines in protected areas of Illinois: Assessing the influence of two decades of climate and landscape change

Despite increasing concern regarding broad-scale declines in insects, there are few published long-term, systematic butterfly surveys in North America, and fewer still that have incorporated the influence of changing climate and landscape variables. In this study, we analyzed 20 years of citizen science data at seven consistently monitored protected areas in Illinois, U.S.A. We used mixed models and PERMANOVA to evaluate trends in butterfly abundance, richness, and composition while also evaluating the effects of temperature and land use. Overall butterfly richness, but not abundance, increased in warmer years. Surprisingly, richness also was positively related to percent impervious surface (at the 2 km radius scale), highlighting the conservation value of protected areas in urban landscapes (or alternately, the potential negative aspects of agriculture). Precipitation had a significant and variable influence through time on overall butterfly abundance and abundance of resident species, larval host plant specialists, and univoltine species. Importantly, models incorporating the influence of changing temperature, precipitation, and impervious surface indicated a significant overall decline in both butterfly abundance and species richness, with an estimated abundance decrease of 3.8%/year and richness decrease of 1.6%/year (52.5% and 27.1% cumulatively from 1999 to 2018). Abundance and richness declines were also noted across all investigated functional groups except non-resident (migratory) species. Butterfly community composition changed through time, but we did not find evidence of systematic biotic homogenization, perhaps because declines were occurring in nearly all functional groups. Finally, at the site-level, declines in either richness or abundance occurred at five of seven locations, with only the two largest locations (>300 Ha) not exhibiting declines. Our results mirror those of other long-term butterfly studies predominantly in Europe and North America that have found associations of butterflies with climate variables and general declines in butterfly richness and abundance.

Pengaruh Produk Domestik Regional Bruto (PDRB), Tingkat Pendidikan dan Pengangguran Terhadap Tingkat Kemiskinan di Provinsi Sumatra Barat

The purpose of this research is to analyze the influence of PDRB growth, education level, and unemployment rate towards poverty level in West Sumatra Province district. This research uses quantitative descriptive methods with multiple regression approaches. This method is to determine and analyze how PDRB growth, education, and unemployment to poverty levels in Sumatra Province. Based on the results of the study showed that (1) the variable PDRB (X1) positively affects the level of poverty in Sumatra Province for 0.003 &lt; 0.05. This indicates that there is a variable influence of PDRB on poverty in Sumatra Province. Then based on the results of the study showed that (2) the level of education (X2) variable has no effect on the level of poverty in Sumatra Province. of 0.029 &gt; 0.05. This indicates that there is no influence between the variable level of education to the poverty level in Sumatra Province. And then based on the results shows that the variable (3) unemployment (X3) affects the poverty of Sumatra Province. of 0.005 &lt; 0.05. This indicates there is a variable influence on unemployment in poverty in Sumatra Province. The results showed that PDRB was positively influential in poverty, education had no positive effect on poverty and unemployment had positive effect on poverty.

Family and School Condition Toward Student English Achievement

The school environment is also an inhibiting factor for students. For example, the way the lesson is presented is not good. In addition, there are still many parents who ignore the education of their students. This has an impact on students' low English skills. This study aims to analyze family and school conditions on students' English achievement. This research is a correlational study. The research subjects were all students of the class with 24 students. The method used to collect data is observation, interviews, and questionnaires. The instrument used in data collection is a questionnaire. The technique used to analyze the data is descriptive qualitative statistics, and quantitative. The study results are that family conditions have a positive effect on learning achievement in learning English. This shows that when family conditions improve, student achievement will also increase. Partial test (t-test) obtained t count variable influence of family conditions = 6.607 so that Ha X1 against Y is accepted. Variable influence of school conditions t count = 3.019 so that Ha X2 to Y is accepted. The practical contribution of family conditions is 21.316%, school conditions are 39.678%. The key is that there is a simultaneous influence of family and school conditions on learning English subjects.