159 research outputs found

    Relationship of soil dispersibility to infiltration and erosion of southeastern soils

    Get PDF
    Fifteen agricultural topsoils from Georgia were subjected to simulated rainfall at high intensity in runoff pan studies. Infiltration over time and total soil loss were not related to soil texture, but were correlated with each other. Both infiltration and soil loss were highly correlated with several measures of soil dispersibility. Dispersible clay measured after 36 h of shaking at an 8:1 water:soil ratio and a dispersible clay index weighting clay dispersion by time were significantly related to both soil loss (r = 0.88 to 0.89) and infiltration (r = -0.5 to -0.6). Dispersion expressions derived from plots of log (undispersed clay) versus time had lower correlation coefficients, as did dispersion variables that included both silt and clay. The high percentage of clay that is dispersible in these soils appears to seal water transmission pores and reduce infiltration, as observed in sodic soils. Therefore, dispersion may be a fundamental soil property to be considered in erosion prediction and control

    Investigating The Problems Faced by Nursing Students in Second Language Communicative Skill for Indonesian Vocational Higher Education Mobile Learning

    Get PDF
    The present study focuses on the problems faced by the sixth-semester students of Nursing Study Program at Health Polytechnic of Makassar in Speaking English. It uses a descriptive method to describe the students’ spoken problems which lie in language elements, psychological factors, and learning situation. The subject of the study is taken using cluster random sampling technique. This study uses two kinds of instrument, namely questionnaire and interview. Both are used to identify and to find out the problems faced by the students in speaking English. The findings of the study show the students’ obstacles in speaking English, namely: the lack of grammar understanding (68%) the lack of confidence (62%), the infrequent practice (58%), the lack of vocabulary (50%), the low motivation (46%), the anxiety (44%), the influence of classroom interaction (44%), the low listening skill (40%), the lack of knowledge and interest (32%), the influence of mother tongue or local language (28%), the impact of formal events (28%), the lack of pronunciation (24%) and the inappropriate topic talk(16%). Thus, it is implied that the problems faced by the students in speaking English need serious attention for the teachers of English to conduct an effective teaching method to help encourage the students to speak English

    A hybrid evaluation approach and guidance for mHealth education applications

    Get PDF
    © Springer International Publishing AG 2018. Mobile health education applications (MHEAs) are used to support different users. However, although these applications are increasing in number, there is no effective evaluation framework to measure their usability and thus save effort and time for their many user groups. This paper outlines a useful framework for evaluating MHEAs, together with particular evaluation metrics: an efficient hybrid of selected heuristic evaluation (HE) and usability evaluation (UE) factors to enable the determination of the usefulness and usability of MHEAs. We also propose a guidance tool to help stakeholders choose the most suitable MHEA. The outcome of this framework is envisioned as meeting the requirements of different users, in addition to enhancing the development of MHEAs using software engineering approaches by creating new and more effective evaluation techniques. Finally, we present qualitative and quantitative results for the framework when used with MHEAs

    Factors Affecting the Recurrence of Tuberculosis in Health Makassar South Sulawesi

    Get PDF
    Background, Recurrence of disease Tuberculosis (Relapse Process) will carry a high risk of wives, husbands, children, or people who live at home with the patient and or healthy people who are nearby. Tuberculosis patients who relapse can transmit Mycobacterium Tuberculosis which has been resistant to treatment of pulmonary TB and even make Mycobacterium resistant to treatment. Mycobacterium Tuberculosis which otherwise resistant to treatment of TB will require very expensive treatment costs and longer time in its handling. The aim of this study. to examine the factors in the families of patients who stated "Relapse Return (Relapse)" from tuberculosis who had suffered and had stated earlier recovered from his illness. Tuberculosis recurrence factor becomes very interesting and important to investigate and found the factors in order to break the chain of recurrence prevalence of negatively affecting the incidence of resistance to Mycobacterium Tuberculosis tehadap. The observational method with Case Control Study approach used in this study, where the risk factors studied retrospectively. The sample in this study berjulah 126 respondents consisting of TB cases (relapsed) totaled 42 respondent is subject to the characteristics of the positive effects and control (Non relapsed) totaled 84 respondents are subject to characteristic negative effects. Temuanada Effect of education, level of knowledge, drinkin

    Penerapan Metode Pembelajaran SQ3R Berbantuan Internet terhadap Hasil Belajar Siswa Kelas X pada Materi Sistem Periodik Unsur di SMA Labschool Palu

    Get PDF
    Internet is a global network connecting thousands and even millions of computer networks with a personal computer so that the user can obtain a variety of information from wider sources. This internet service is used to assist the implementation of the SQ3R learning method that is expected to enrich the literature. The SQ3R learning method is a method of learning which uses the reading technique intensively and rationally to understand the main ideas, the details of a reading, and a comprehensive understanding of a passage with the steps i.e. surveying, asking, reading, communicating, and reviewing. The aim of this study was to determine the effect of the implementation of SQ3R learning method internet-assisted to the learning outcomes (cognitive) of students in the class X on the material periodic table of elements at Senior High School Labschool Palu. This research was a quasi-experimental with non-randomized pre-test and post-test control groups design. This research was carried out by holding two groups of class X science 1 as the control group (n = 19) and Class X science 2 as the experimental group (n = 18).Testing of research data used t-test statistical analysis one side (right side) with the prerequisite tests: normality and homogeneity tests. The results of the data analysis obtained the average value (X1 ) of experiment class was 83.94 with a standard deviation of 8.24 and (X1 ) of control class was 77.78 with a standard deviation of 8.54. Results of the hypothesis testing using statistical t-test one side (right side) obtained tcount>ttable value was 1.867 > 1.690 with a confidence level (α) = 0.05 and a degree of freedom (df ) = 35. Based on the results of hypothesis testing, then Ho is rejected and H1 is accepted so it can be concluded that the SQ3R learning method internet-assisted on the material Periodic System of Elements has a positive influence on the learning outcomes of students in the class X at Senior High School Labschool Palu

    Arang Eceng Gondok (Eichornia Crassipes) sebagai Adsorben Fenol pada Limbah PLTU Palu

    Get PDF
    This study aims to determine the optimum capacity and weight of water hyacinth aroma to the adsorption capacity of phenol in Palu PLTU waste. The steps taken in this research are a sampling of PLTU waste, making of adsorbent, determination of phenol concentration in PLTU waste and determination of phenol concentration at equilibrium using a Spektrodirect spectrophotometer. The adsorption capacity of water hyacinth at optimum condition of phenol was determined by weight variations of 10, 20, 30, 40 and 50 mg. The resulting result after adsorption process for adsorption weight at the weight of charcoal 10 mg = 82.78%, 20 mg = 89.13%, 30 mg = 85.49%, 40 mg = 79.72% and 50 mg = 74, 42 %. The optimum weight of charcoal in phenol absorb is 20 mg with% phenol which is absorbed 89.13%. The capacity of adsorbent hailing of water hyacinth scent at optimum condition of 3.03 mg phenol/g of adsorbent

    UPAYA PEMELIHARAAN TEKANAN DARAH BAGI PASIEN HIPERTENSI DI RSUD SYEKH YUSUF KABUPATEN GOWA

    Get PDF
    Hipertensi dapat didefenisikan sebagai tekanan darah pasien persisten dimana tekanan sistoliknya diatas 140 mmHg dan tekanan diastolik diatas 90 mmHg.Tujuan penelitan ini untuk mengetahui upaya pasien dalam mengontrol tekanan darah pada pasien hipertensi dengan mengontrol tekanan darah, diet hipertensi, berolahraga, dan keteraturan berobat. Penelitian ini dilakukan dengan metode deskriptif analisis, populasi yang diteliti adalah pasien hipertensi yang rawat inap diRSUD Syekh Yusuf Kabupaten Gowa. Teknik pengumpulan data yang digunakan adalah teknik Purposive sampling dengan jumlah responden sebanyak 65 orang. Instrumen pengumpulan data menggunakan lembar kuisioner dengan penilaian skala Gutman. Analisa data menggunakan analisa distribusi frekuensi kemudian disajikan dalam tabel. Hasil penelitian menunjukkan bahwa gambaran upaya pasien dalam mengontrol tekanan darah pada pasien hipertensi dengan mengontrol tekanan darah, diet hipertensi, berolahraga, dan keteraturan berobat masih sangat kurang. Hasil penelitian tentang upaya pasien dalam memelihara tekanan darah pada pasien hipertensi yaitu yang mengontrol tekanan darahnya 6 orang (9,2%), tidak mengontrol tekanan darah 59 orang (90,8%). Pengetahuan tentang diet hipertensi yang baik 8 orang (12,3%), yang masih kurang 57 orang (87,7%). Pengetahuan tentang Berolahraga yang baik 6 orang (9,2%), yang berpengetahuan kurang 59 orang (90,8%). Dan upaya berobat secara teratur 4 orang (6,1%), yang berobat secara tidak teratur 61 orang (93, 9%).Kesimpulan dalam penelitian ini adalah masih kurangnya kesadaran pasien hipertensi dalam mengontrol tekanan darahnya menyebabkan masih tingginya kasus hipertensi dan komplikasi penyakit akibat hipertensi di RSUD Syekh Yusuf Kabupaten Gowa

    Penerapan Model Pembelajaran Snowball Throwing Berbantuan Kode SMILES pada Materi Hidrokarbon terhadap Hasil Belajar Siswa Kelas XI SMA Negeri 5 Palu

    Get PDF
    Snowball throwing learning model is a modification of aquastion technique. This technique is focused on the ability to formulate questions which are combined in a game called snowball throwing. SMILES is a simple chemical notation comprehensive where the scructures of molecules can be found by using ASCII character which representing atom and bond symbol. The study aim is to determine the influence of snowball throwing assisted learning model SMILES code on hydrocarbon material to the learning outcomes of students clas XI in SMA Negeri 5 Palu. This study is experimental with pretest and posttest control group design, in which the samples are students of class XI IPA 2 (n=33) as experimental group while students of clas XI IPA 4 (n=32) as control group. The testing data used t-test statistical analysis one side (right) with pre-requisite test, normality test and homogeneity. The result of data analysis are the score of X1 experiment class is 73.81 with standard deviation is 8.19 while score of X2 control group is 65 with standard deviation is 14.36. Based on testing hypothesis result that tcounted>ttable is 3.05 > 1.67 with significance level 0.05 and confidence level = 63. The results show that H0 is rejected and H1 is accepted then it is concluded that the application of Snowball Throwing assisted learning model SMILES code on hydrocarbon material positively influence to the learning outcomes of students class XI in SMA Negeri 5 Palu

    catena-Poly[[sodium-di-μ-β-d-glucose] chloride]

    Get PDF
    The asymmetric unit of the title compound, {[Na(C6H12O6)2]Cl}n, contains six glucose mol­ecules, three Na+ ions and three Cl− ions, i.e. three independent {[Na(C6H12O6)2]Cl} units. Each of these units forms polymeric chains along the c axis. Each Na+ ion is surrounded by six O atoms from four glucose mol­ecules, forming a distorted octa­hedral geometry. All glucose mol­ecules adopt chair conformations. The constituent units are linked into a three-dimensional framework by O—H⋯Cl and O—H⋯O hydrogen bonds, utilizing all the O—H groups
    corecore