122 research outputs found

    Kepemimpinan Transformasional Sekretaris Daerah Kabupaten Parigi Moutong

    Full text link
    The main focus of this research is transformational leadership of regional secretary. This research aims to find out the transformational leadership and supporting and barrier factors of the leadership of regional secretary of Parigi Moutong Regency. Theory used was transformational leadership theory from Bernard M. Bass who formulated it into four aspects as main condition of the successfulness of transformational leadership process, namely individual concern,intellectual stimulation, inspirational motivation and idealized influence. This research employed a qualitative research. The informant was officials of regional secretariat area determined purposifely in sampling. The data collections were observation, interview and documentation. The data analysis was data reduction,data display and drawing conclusion (verification). The research result reveals that transformational leadership of regional secretary had not been fully done as the theory determined because there were there aspects were not effective. Only aspect of inspirational motivation gives good response towards the transformational leadership. It was shown by the implementation of activities which in every part always presented repeatedly through meetings, morning and afternoom gathering and ceremonies

    Correlation between Microstructure and Microhardness of Nitrided Austenitic Stainless Steel

    Get PDF
    This paper will study on the effect of the duration of solution nitriding towards the microstructure and micro-hardness of AISI 316L stainless steel. The AISI 316L stainless steel will be exposed to the high temperature gas nitriding process at 1200oC by using the 50% of ammonia gas and 50% of nitrogen gas for different duration of 8, 15 and 20 hours. The nitrided AISI 316L was then undergone slow cooling process after the solution nitriding process. After that, the samples were polished and etched using Viella’s etchant in order to have a better image on the microstructure for the optical micrograph observation. It was observed that there were several formation of twins occurred on the microstructure of the nitrided samples. There were two types of twins indentified on the microstructure of the samples which were transgranular twin and suspended twin. It was also noted that the grain size is increasing with the increase of duration of nitriding due to the slow cooling process. Then, the nitrided samples were analyzed using the Electron Dispersive X-ray Spectroscopy (EDS) embedded in the Phenom ProX Scanning Electron Microscope (SEM). From the EDS analysis, it was found that the nitrogen content in the nitrided austenitic stainless steel is increasing as the duration of solution nitriding is increase. The highest nitrogen content was located in the nitrided samples for 20 hour which have about 8.5 wt% of nitrogen. After that, the micro-hardness of the nitrided samples were investigated using the Vickers hardness testing machine. The microhardness test were conducted on the cross-sectional area of the nitrided samples. The highest reading were acquired on the surface of each nitrided samples and the reading is decreasing towards the center of all the nitrided samples. From the hardness test, it shown that the nitrided samples for 20 hours have the highest surface hardness of about 245.1 HV which is about 70% higher than the surface hardness of as-received sample. All the results obtained from all the experiments and tests conducted were analyzed to find the correlation between the microstructure and micro-hardness of the nitrided austenitic stainless steel

    Daya Antioksidan Ekstrak Kulit Buah Naga Dan Sabun Ekstrak Kulit Buah Naga (Hylocereus Polyrhizuz)

    Get PDF
    Red dragon fruit peel extract contains betalain which has antioxidant activity. In addition, this extract also contains dyes that can be used as coloring agents in cosmetic preparations. The purpose of this study was to study the activity of dragon fruit peel extract and red dragon fruit peel extract soap with various concentrations. Antioxidant activity is taken by the DPPH method. The concentration of red dragon fruit peel extract in soap is 0.3; 0.6; 0.9%. Test results show red dragon fruit extract soap has lower antioxidant activity than the extract. The increased concentration of the extract caused an increase in the antioxidant activity of the red dragon fruit peel extract soap

    KEPEMIMPINAN TRANSFORMASIONAL SEKRETARIS DAERAH KABUPATEN PARIGI MOUTONG

    Get PDF
    The main focus of this research is transformational leadership of regional secretary. This research aims to find out the transformational leadership and supporting and barrier factors of the leadership of regional secretary of Parigi Moutong Regency. Theory used was transformational leadership theory from Bernard M. Bass who formulated it into four aspects as main condition of the successfulness of transformational leadership process, namely individual concern,intellectual stimulation, inspirational motivation and idealized influence. This research employed a qualitative research. The informant was officials of regional secretariat area determined purposifely in sampling. The data collections were observation, interview and documentation. The data analysis was data reduction,data display and drawing conclusion (verification). The research result reveals that transformational leadership of regional secretary had not been fully done as the theory determined because there were there aspects were not effective. Only aspect of inspirational motivation gives good response towards the transformational leadership. It was shown by the implementation of activities which in every part always presented repeatedly through meetings, morning and afternoom gathering and ceremonies

    Validity of instrument to measure primary school mathematics teachers’ acceptance of m-learning applications

    Get PDF
    Mobile learning (M-learning) is one of the proposed technology-based methods for teaching mathematics in today’s education 4.0 era. This method enables teachers to conduct instruction and learning without being bounded by walls, wires, and the need for specialized physical infrastructure and facilities. This study was conducted to develop and validate an instrument for evaluating primary school mathematics teachers’ acceptance of M-learning applications in problem-solving teaching involving six variables. This research is quantitative and utilizes a questionnaire to collect data. This study involved a total of four experts and 120 participants. Cronbach’s alpha and Exploratory Factor Analysis were used to perform a descriptive analysis of the data. Cronbach’s alpha was determined to be 0.934, with a factor eigenvalue greater than 1. The Kaiser–Meyer–Olkin value for each construct is 0.50, whereas Bartlett’s test value is statistically significant (<0.5). Each item has a factor loading of 0.50 and a variance of ≥60%. The findings showed that this instrument contains six constructs and nineteen appropriate items. It also indicated that this instrument could be used to investigate perceptions of the primary school mathematics teachers’ acceptance of m-learning applications in problem-solving teaching instruments involving performance expectancy, effort expectancy, social influence, facilitating conditions, behavioral intention, and usage behavior (attitude)

    Correlation between Microstructure and Microhardness of Nitrided Austenitic Stainless Steel

    Get PDF
    This paper will study on the effect of the duration of solution nitriding towards the microstructure and micro-hardness of AISI 316L stainless steel. The AISI 316L stainless steel will be exposed to the high temperature gas nitriding process at 1200oC by using the 50% of ammonia gas and 50% of nitrogen gas for different duration of 8, 15 and 20 hours. The nitrided AISI 316L was then undergone slow cooling process after the solution nitriding process. After that, the samples were polished and etched using Viella’s etchant in order to have a better image on the microstructure for the optical micrograph observation. It was observed that there were several formation of twins occurred on the microstructure of the nitrided samples. There were two types of twins indentified on the microstructure of the samples which were transgranular twin and suspended twin. It was also noted that the grain size is increasing with the increase of duration of nitriding due to the slow cooling process. Then, the nitrided samples were analyzed using the Electron Dispersive X-ray Spectroscopy (EDS) embedded in the Phenom ProX Scanning Electron Microscope (SEM). From the EDS analysis, it was found that the nitrogen content in the nitrided austenitic stainless steel is increasing as the duration of solution nitriding is increase. The highest nitrogen content was located in the nitrided samples for 20 hour which have about 8.5 wt% of nitrogen. After that, the micro-hardness of the nitrided samples were investigated using the Vickers hardness testing machine. The microhardness test were conducted on the cross-sectional area of the nitrided samples. The highest reading were acquired on the surface of each nitrided samples and the reading is decreasing towards the center of all the nitrided samples. From the hardness test, it shown that the nitrided samples for 20 hours have the highest surface hardness of about 245.1 HV which is about 70% higher than the surface hardness of as-received sample. All the results obtained from all the experiments and tests conducted were analyzed to find the correlation between the microstructure and micro-hardness of the nitrided austenitic stainless steel

    A randomized controlled trial of parenteral glutamine in newborns receiving total parenteral nutrition (TPN) in Hospital Universiti Sains Malaysia (HUSM)

    Get PDF
    Glutamine is a conditionally essential amino acid. Addition of glutamine in TPN of critically ill adults causes a reduction of complications such as infection. In neonates however, no clear benefits of addition of glutamine to TPN were shown in a limited number of studies, mainly performed in high income countries To determine whether the addition of glutamine to standard TPN in neonates in HUSM, Malaysia improves selected neonatal outcomes This was a double blinded randomized controlled trial. Babies admitted to the NICU during the 1-year study period, requiring TPN were eligible for inclusion. Subjects were randomized either to receive glutamine added TPN (intervention) or standard TPN (control). Primary outcome measures included time taken to reach full enteral nutrition, incidence of sepsis and NEC, time taken to achieve extubation, and time to discharge from NICU Out of 270 subjects included in the study 132 were randomized to the intervention group and 138 to the control group. There were no significant differences between the two groups in terms of baseline data. The median time taken to reach full enteral nutrition was similar for both intervention and control group (6 days in each group, p= 0.52). The time taken to achieve extubation was also similar in both groups (2 days in each group, p=O. 76). The incidence of necrotising enterocolitis in the intervention group was slightly lower than for the control group but the difference was not significant (5.8% vs. 7.1% , p=O. 68). The incidence of clinical sepsis and culture proven sepsis was also not significantly different in the intervention and the control group (15.7% vs10.2%,p=0.2J and 16.5% vs 15.7%, p=0.38 respectively). Sub-group analysis for preterm and term babies for the same outcomes also showed no statistically significant differences Addition of glutamine to TPN for neonates was not shown to improve outcome

    PENGENDALIAN RISIKO KECELAKAAN DAN KESEHATAN KERJA PADA PRODUKSI TAHU DENGAN PENDEKATAN JOB SAFETY ANALYSIS

    Get PDF
    Home industry Bu Sumini merupakan salah satu usaha rumahan yang bergerak di bidang industry pangan berupa tahu, dimana produk dari usaha ini berupa tahu goreng atau lebih dikenal dengan tahu kuning. Usaha ini berdiri sejak tahun 1987 hingga saat ini. Usaha tahu bu sumini berproduksi di Jl. Sadewa, Sidorahayu, Kec. Wagir, Kab. Malang, Jawa Timur. Permasalahan yang terjadi pada Home Industry Bu Sumini bahwa masih seringnya terjadi kasus kecelakaan kerja setiap bulannya dan kurangnya kesadaran pekerja akan adanya potensi bahaya di sekitarnya. Penelitian ini bertujuan untuk mengidentifikasi potensi bahaya yang dapat menyebabkan Kecelakaan dan Kesehatan Kerja serta memberikan solusi pengendalian Keselamatan dan Kesehatan Kerja (K3) untuk meminimalisir kecelakaan kerja pada Home Industry Tahu Bu Sumini dengan menggunakan pendekatan Job Safety Analysis (JSA). Setelah dilakukan pengamatan dengan pendekatan Job Safety Analysis (JSA) ditemukan terdapat 22 potensi bahaya dengan berbagai macam tingkat risiko antara lain : 6 risiko bahaya dengan Risk Ratting Low, 10 risiko bahaya Risk Ratting Moderate, dan 6 risiko bahaya Risk Ratting High. Rekomendasi pengendalian K3 dengan berpedoman hirarki pengendalian (Hirarchy Of Control) yaitu: pertama teknik/perancangan yaitu dengan merancang peralatan yang memiliki potensi bahaya supaya meminimalisir bahaya yang ada, kedua administrasi yaitu dengan pemberian langkah atau prosedur kerja yang baik guna meminimalisir risiko bahaya. Yang terakhir APD digunakan sebagai perlindungan akhir untuk pekerja dari bahaya atau risiko, serta pemberian usulan form JSA dan SOP sebagai pedoman untuk mengatasi risiko yang ada

    Uji Stabilitas Dan Aktivitas Antioksidan Mikroemulsi Likopen Tomat (Solanum Lycopersicum L.): Stability Test and Antioxidant Activity of Tomato Lycopene (Solanum Lycopersicum L.) Microemulsion

    Full text link
    Lycopene is a class of keratonoid that have been proven has antioxidant activity but has limited solubility in water. So as to boost their solubility, in this study conducted in the form of microemulsion formulations. This study aims to get a tomato lycopene extract microemulsion which is stable and has antioxidant effects. The research was initiated to test the antioxidant power of tomato lycopene extract in vitro against DPPH. Tomato lycopene extract microemulsion is formulated based on the optimization of the composition of the base consisting of the VCO as the oil phase, tween 80 as surfactant and glycerin as cosurfactant. Preparations produced were tested for antioxidant activity and their physical and chemical stability testing which include: organoleptic, viscosity, globule size and pH during 28 days of storage. The results showed that tomato lycopene extract formula microemulsion stable composition of tomato lycopene extract 0.3%, VCO 15%, tween 80% and 35% glycerin. The test results obtained physical stability of the microemulsion formula elected tomato lycopene extract has a distinctive scent of aromatic, orange, thick, globule size of <5 μm, viscosity (600, 33 ± 69.29 to 746 cPs ± 8.32), and pH ( 6.27 ± 0.20 to 6.79 ± 0.10). As very strong antioxidant activity with IC50 value of 29.07 ppm

    Validity of instrument to measure mathematics teachers’ perceptions towards problem-based learning activities

    Get PDF
    Problem-based learning (PBL) is a proposed method for teaching mathematics in primary education in the education 4.0 era. This method enables teachers to conduct effective instruction by allowing students to explore alternative solutions to problems. This study was conducted to develop and validate an instrument for evaluating primary school mathematics teachers’ perceptions of PBL activities. This research is quantitative, and a questionnaire was employed to collect data. The data obtained were analyzed descriptively utilizing Cronbach’s alpha and exploratory factor analysis (EFA). It is determined that Cronbach’s alpha is 0.885, with a factor eigenvalue greater than 1. The Kaiser–Meyer–Olkin (KMO) value for each construct is 0.50, whereas Bartlett’s test value is statistically significant (<0.5). Each item has a factor loading of 0.50 or higher and a standard deviation of ≥60%. This study’s results indicated that this instrument can be used to investigate primary school mathematics teachers’ perceptions of PBL activities involving group division, generating ideas and learning issues, identifying problems, self-directed learning, synthesis and application, reflection, and assessment
    corecore