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This study was conducted to determine the factors that influence the farmer's exchange rate (the ratio of the price index received by farmers to the price index paid by farmers) in the food crops sub-sector in Riau Province. The data collected in this study is data published by the Central Statistics Agency of Riau Province. The data obtained were then analyzed using SPSS 22. The test results show that the level of expenditure has a negative and significant effect on the exchange rate of farmers in the food crop sub-sector, this can be seen from the value of tcount (-2.475) < ttable (2.44691) with a significant value of 0.048 < 0.05. Harvested area has a significant positive effect on the exchange rate of farmers in the food crop sub-sector, this can be seen from the value of tcount (4.441) < ttable (2.44691) with a significant value of 0.004 <0.05. Meanwhile, the food import variable has no significant effect on the exchange rate of farmers in the food crop sub-sector, this can be seen from the value of tcount (2.273) < ttable (2.44691) with a significant value of 0.063 > 0.05, with a value of Fcount (12.476) > Ftable , (4,35).

Background: Obesity is a pathological condition due to excessive fat accumulation than is needed for body function. Pregnant women with overweight and obesity are at high risk and have been shown to be associated with increased complications in pregnancy. Cesarean section is a surgery to deliver a fetus by opening the abdominal wall and uterine wall. Generally, in cesarean section, spinal anesthesia is performed. Objective: to determine the hemodynamic picture of obese caesarean section patients with spinal anesthesia. Method: The method used is observational analytic with a cross-sectional approach and consecutive sampling technique. Data analysis uses parametric statistics. The data in this study are the results of differences in obese and non-obese patients. Data collection techniques in this study include documentation and observation. Results: The pre-anesthesia results obtained an average systolic blood pressure = 138.31 ± 17.528, an average diastolic blood pressure = 82.54 ± 10.643 and an average pulse of 100.69 ± 15.315, while the results after 5 minutes obtained an average systolic blood pressure of 105.31 ± 12.572, an average diastolic blood pressure of 61.15 ± 11.753 and an average pulse of 99.54 ± 18.963. Conclusion: Changes in blood pressure and pulse before spinal anesthesia with after spinal anesthesia in obese patients undergoing cesarean section showed a decrease in blood pressure and pulse in the 5th minute after injection.

The purpose of this study was to determine the effect of promotion on the number of new student registrations at the Tangerang Nusantara Tourism Academy. This type of research is quantitative research. The population used is all prospective students who register in T.A 2021/2022 as many as 140 students of the Tangerang Nusantara Tourism Academy. the sample was selected as many as 80 respondents. determined by using a random sampling technique. The data collection technique used is the distribution of questionnaires in the form of a questionnaire through the google form application. By using simple linear regression analysis. Data analysis used descriptive statistics, namely by looking for correlation coefficients and simple linear regression using t test. This research was carried out on June 1 - August 31, 2022. Based on statistical results using the SPSS 22.00 application, the results showed "there was a significant effect of promotion on the number of prospective student registrations at the Tangerang Nusantara Tourism Academy" with a promotion percentage rate of 33.98% in increase the number of student registrations.

Tax aggressiveness is the actions taken by the company to reduce its tax obligations. A company is said to carry out tax aggressiveness if the company tries to reduce the tax burden aggressively, either using legal methods, namely tax avoidance or illegal methods such as tax evasion. Although not all tax planning actions are carried out illegally, the more loopholes a company uses to avoid taxes, the more aggressive the company is considered. And this study aims to examine the relationship between the dependent variable and the independent variable of this study. The independent variables are liquidity, ROA, leverage and firm size and the dependent variable is tax aggressiveness. And for the analytical method used is regression analysis, and descriptive analysis. Descriptive statistics are used to describe or describe the variables in the study. Descriptive statistics used are measures of tax aggressiveness of all sample companies. The description of the variables can be seen from the mean and standard deviation. The descriptive statistical test was carried out with the SPSS program. The results of the study found that liquidity has no effect on tax aggressiveness, then Renturn on Assets (ROA) affects tax aggressiveness, then leverage affects tax aggressiveness and company size affects tax aggressiveness.   Keywords: Liquidity, ROA, Leverage, Company Size, Tax Aggressiveness

Mathematics is an applicable science and very close to human life, so mathematics is very important to learn from elementary school. However, the mathematics competence of elementary school students in Indonesia is relatively low. One of them is SD IT Cahaya Ummat which is located in Karangjati, Kecamatan Bergas, Kabupaten Semarang, the grade 6 students' average mathematics score is lower than other subjects. So far, learning is still conventional in nature with learning resources in the form of printed books, thus it is necessary to have learning innovations to increase students' interest in learning mathematics.The design of interactive media as a learning aid can be a solution to attract students' attention to be more focused when the teacher explains math material in class. When students feel interested and focused on learning, learning will be more effective so that students' understanding of the material presented by the teacher will also increase.Interactive learning media made with Adobe Flash CS5.5 to combine text, images, sound, and animation will make the application more attractive, so that students are more interested in learning mathematics with statistics material. The results of the validation score obtained from media experts are 34, material experts 39, and users 35, so this learning media product is classified as a very good category, so it is valid to be used.  

The development of computers in the current era can help teachers improve human resources (HR), especially in the field of education. SPSS and Excel are statistical applications that can process teacher research data such as education management data and classroom action research data and so on. This community service (PKM) is carried out in the form of statistical application training (SPSS and Excel) as well as writing techniques and publication of scientific articles. Participants in this activity consisted of 21 teachers and employees of the Muhammadiyah Mamala High School in Central Maluku. The conclusion obtained in this activity is that activities that have been carried out in the form of training are considered very good (99%). All material that has been planned can be delivered, although due to time constraints there are some materials that are only presented in an outline. The participants' ability in mastering the material was considered very   1Jurusan Matematika FMIPA Universitas Pattimura, Ambon-Maluku         good (98%). This is based on the teacher's ability in training and trials in the form of classroom action research data processing using Excel and SPSS applications. In addition, from the results of the training given to the participants, it was found that all the training participants perfectly mastered the tasks given in the training.