Meningkatkan Aktivitas Belajar Siswa Kelas IV Pada Pembelajaran PKn Melalui Metode Pemberian Tugas Di SD

Permasalahan mendasar pada penelitian ini adalah aktivitas belajar siswa yang rendah maka akan ditingkatkan melalui penerapan metode pemberian tugas di kelas IV SD Inpres I Kasimbar.Tujuan penelitian ini adalah untuk mengetahui penggunaan metode pemberian tugas dalam meningkatkan aktivitas belajar siswa kelas IV SD Inpres 1 Kasimbar pada mata pelajaran PKn. Jenis data yang diambil adalah data kualitatif yaitu meliputi data penelitian dan analisis. Metode yang digunakan adalah metode pemberian tugas. Teknik pengumpulan data diperoleh dari observasi guru dan siswa serta evaluasi proses dan hasil pembelajaran. Sampel dalam penelitian ini sebanyak 15 orang siswa kelas IV SD Inpres 1 Kasimbar. Proses penelitian tindakan kelas ini dilaksanakan 2 siklus dengan prosedur tindakan 1 perencanaan, 2 pelaksanaan, 3 observasi, 4 refleksi. Hasil penelitian menunjukan bahwa aktivitas guru yang telah baik dan sangat baik adalah memberikan motivasi, menyediakan sarana dan prasarana pada kegiatan inti, menjelaskan cirri pokok, menjelaskan beberapa contoh pemerintahan kabupaten, membagikan tugas LKS pada siswa, menjelaskan cara kerja LKS, meminta siswa untuk mengerjakan tugas, menulis judul, mengerjakan tugas, memberikan kesempatan pada siswa untuk bertanya, membimbing siswa mengerjakan tugas, kegiatan akhir membimbing siswa menyimpulkan materi dan evaluasi. Kemudian pada aktivitas belajar siswa yang sudah baik adalah kesiapan siswa dalam mengikuti pelajaran, perhatian siswa dalam belajar, berani bertanya pada guru, bertanya antar siswa, mengerjakan tugas dengan baik, antusias mengikuti pelajara

Analisis Permintaan dan Penawaran Tenaga Kerja pada Sektor Pertanian di Provinsi Aceh

. Labor is one of the most important production factors in supporting economic growth in addition to the factors of production land, capital and management / skill. Aceh is one of province in Indonesia, which has a larger population and some people made their living in the agricultural sector. The agricultural sector in Aceh were able to absorb labor is relatively larger than the other sectors, the contribution of the agricultural sector in Aceh not only in employment but also to PDRB.This study aimed to analyze the factors that affect the demand and supply of labor in the agricultural sector in the province of Aceh. On the demand equation factors analyzed are land, labor, and agricultural investment. On the supply equation factors analyzed were quality of population, wage labor in agriculture and unemployment in rural. The results of labor demand analysis, show that the variable land and agricultural sector investment gave positive effect and significance on labor demand, and labor variable agricultural sector gave a negative effect but no significant on labor demand. The results of labor supply analysis show that variable labor in agriculture and unemployment in rural gave positive effect and a significant influence on labor supply, while a quality of residents variable gave a positive influence but not significant on labor supply

Quantification of BRIS Soil Bacteria at Tembila, Besut Terengganu

A study was made to determine total number of bacteria living in the rhizosphere of three common plants at BRIS soil namely Acacia mangium, Melaleuca cajuputi Powell and Eleusine indica that grow on field. Soil samples were collected from each plant's rhizosphere at three different locations of UniSZA Apiary, AGROPOLIS Research Farm and FBIM Teaching Farm at UniSZA, Besut Campus on May and November 2015. Enumeration of total bacteria by standard plate counts found that Acacia's rhizosphere at AGROPOLIS Research Farm showed the highest CFU g-1 in November 2015 for aerobic (6.14 x 106) and anaerobic (3.97 x 106) bacteria. Acacia's rhizosphere from UniSZA Apiary showed the highest CFU g-1 value in November 2015 for nitrogen fixing bacteria (aerobic; 1.87 x 106, anaerobic; 1.5 x 106) and phosphate solubilization bacteria (aerobic; 1.4 x 106, anaerobic; 1.41 x 106). The rainy season on November gave a higher bacterial CFU g-1 number (20-44 %) compared to the dry season on May for all different plants and locations. The finding showed that although BRIS soil is the problematic and unfertile soil, it has a large number of bacterial colony that might be beneficial to be exploited for enhancing plant growth and soil fertility

Effect of Nenas honey supplementation on the oxidative status of undergraduate students

Honey is a dietary antioxidant as it contains phenolic compounds, such as flavonoids and phenolic acids. Antioxidants are non-nutritive, biologically active ingredients in food that reduce oxidative stress. The antioxidant content in each type of honey varies depending on its source. This study was aimed to determine the effect of Nenas honey supplementation on the oxidative status of a group of healthy medical students. They were divided into two groups; control (n=10) and supplemented (n=13), where 1 tablespoon of Nenas honey was given each day. Blood sampling was done at baseline, 1st and 2nd month of the study for determination of DNA damage and antioxidant enzyme activities, such as superoxide dismutase (SOD), glutathione peroxidise (GPx), and catalase (CAT). Results showed that Nenas honey increased the level of DNA damage at the 1st month but reduced it significantly at the 2nd month as compared to control. GPx and CAT activities also decreased significantly with honey supplementation throughout the study, though no changes were observed in SOD activity. Fasting glucose levels remained within the normal range with honey supplementation. In conclusion, Nenas honey decreases oxidative stress which leads to a reduction of antioxidant enzyme activities in the body

Optimasi Kondisi Operasi Ekstraksi Zat Warna Alami dari Daun Ketepeng (Terminalia Catappa) Menggunakan Response Surface Method

The textil industry are widely using dyes. Most of them use synthetic which can be damage the environment. Therefore it is necessary to do research which related to natural dye production. This research aimed to obtain the optimum condition of natural dye extraction from Terminalia catappa. There were three operating variables observed in this research; temperature, time, and the weight ratio of Terminalia catappa to the solvent volume. The extraction was conducted on a third-necked round-bottomed flask fitted with a stirrer, reflux condenser, heating mantle, and with eco-friendly solvents. Natural dye content on the extract was analyzed by gravimetric. The extraction was done 27 times for combination of 3 operating variables and 3 interval values of these variables. The optimization of operating variables extraction conditions had done by using Response Surface Method (RSM). The results obtained were the optimum temperature was 100oC, the optimum extraction time was 90 minutes, and the ratio of the weight of Terminalia catappa to the solvent volume was 0.2 g/mL. In this optimum conditions, the natural dye concentration in the extracts was 102 mg/100g of leaves

Optimasi Kondisi Operasi Ekstraksi Zat Warna Alami dari Daun Ketepeng (Terminalia Catappa) Menggunakan Response Surface Method

The textil industry are widely using dyes. Most of them use synthetic which can be damage the environment. Therefore it is necessary to do research which related to natural dye production. This research aimed to obtain the optimum condition of natural dye extraction from Terminalia catappa. There were three operating variables observed in this research; temperature, time, and the weight ratio of Terminalia catappa to the solvent volume. The extraction was conducted on a third-necked round-bottomed flask fitted with a stirrer, reflux condenser, heating mantle, and with eco-friendly solvents. Natural dye content on the extract was analyzed by gravimetric. The extraction was done 27 times for combination of 3 operating variables and 3 interval values of these variables. The optimization of operating variables extraction conditions had done by using Response Surface Method (RSM). The results obtained were the optimum temperature was 100oC, the optimum extraction time was 90 minutes, and the ratio of the weight of Terminalia catappa to the solvent volume was 0.2 g/mL. In this optimum conditions, the natural dye concentration in the extracts was 102 mg/100g of leaves

The significance of opthalmologic evaluation in the early diagnosis of inborn errors of metabolism: the Cretan experience

BACKGROUND: The Inborn Errors of Metabolism (IEM) are far from the rare systemic diseases that mainly affect the neural tissue. There are very few written reports on ocular findings in subjects with IEM, thus it was interesting to study the frequency of ocular findings in the studied population and explore their contribution to the early diagnosis of IEM. METHODS: Our study involved the evaluation of IEM suspected cases, which had been identified in a rural population in Crete, Greece. Over a period of 3 years, 125 patients, who fulfilled the inclusion criteria of this study, were examined. Analytical physical examination, detailed laboratory investigation as well as a thorough ocular examination were made. RESULTS: A diagnosis of IEM was established in 23 of the 125 patients (18.4%). Ten (43.5%) of the diagnosed IEM had ocular findings, while 8 of them (34.8%) had findings which were specific for the diagnosed diseases. One patient diagnosed with glycogenosis type 1b presented a rare finding. Of the 102 non-diagnosed patients, 53 (51.96 %) presented various ophthalmic findings, some of which could be related to a metabolic disease and therefore may be very helpful in the future. CONCLUSIONS: The ocular investigation can be extremely useful for raising the suspicion and the establishment of an early diagnosis of IEM. It could also add new findings related to these diseases. The early management of the ocular symptoms can improve the quality of life to these patients

Complex 5d magnetism in a novel S = ½ trimer system, the 12L hexagonal perovskite Ba4BiIr3O12

The 12L hexagonal perovskite Ba4BiIr3O12 has been synthesized for the first time and characterized using high-resolution neutron and synchrotron x-ray diffraction as well as physical properties measurements. The structure contains Ir3O12 linear face-sharing octahedral trimer units, bridged by corner-sharing BiO6 octahedra. The average electronic configurations of Ir and Bi are shown to be 4+(d5) and 4+(s1) respectively, the same as for the S = ½ dimer system Ba3BiIr2O9 which undergoes a spin-gap opening with a strong magnetoelastic effect at T* = 74 K. Anomalies in magnetic susceptibility, heat capacity, electrical resistivity and unit cell parameters indeed reveal an analogous effect at T* ≈ 215 K in Ba4BiIr3O12. However, the transition is not accompanied by the opening of a gap in spin excitation spectrum, because antiferromagnetic coupling among s = ½ Ir4+ (d5) cations leads to the formation of a S = ½ doublet within the trimers, vs. S = 0 singlets within dimers. The change in magnetic state of the trimers at T* leads to a structural distortion, the energy of which is overcompensated for by the formation of S = ½ doublets. Extending this insight to the dimer system Ba3BiIr2O9 sheds new light on the more pronounced low-temperature anomalies observed for that compound

An overview of anti-diabetic plants used in Gabon: Pharmacology and Toxicology

© 2017 Elsevier B.V. All rights reserved.Ethnopharmacological relevance: The management of diabetes mellitus management in African communities, especially in Gabon, is not well established as more than 60% of population rely on traditional treatments as primary healthcare. The aim of this review was to collect and present the scientific evidence for the use of medicinal plants that are in currect by Gabonese traditional healers to manage diabetes or hyperglycaemia based here on the pharmacological and toxicological profiles of plants with anti-diabetic activity. There are presented in order to promote their therapeutic value, ensure a safer use by population and provide some bases for further study on high potential plants reviewed. Materials and methods: Ethnobotanical studies were sourced using databases such as Online Wiley library, Pubmed, Google Scholar, PROTA, books and unpublished data including Ph.D. and Master thesis, African and Asian journals. Keywords including ‘Diabetes’ ‘Gabon’ ‘Toxicity’ ‘Constituents’ ‘hyperglycaemia’ were used. Results: A total of 69 plants currently used in Gabon with potential anti-diabetic activity have been identified in the literature, all of which have been used in in vivo or in vitro studies. Most of the plants have been studied in human or animal models for their ability to reduce blood glucose, stimulate insulin secretion or inhibit carbohydrates enzymes. Active substances have been identified in 12 out of 69 plants outlined in this review, these include Allium cepa and Tabernanthe iboga. Only eight plants have their active substances tested for anti-diabetic activity and are suitables for further investigation. Toxicological data is scarce and is dose-related to the functional parameters of major organs such as kidney and liver. Conclusion: An in-depth understanding on the pharmacology and toxicology of Gabonese anti-diabetic plants is lacking yet there is a great scope for new treatments. With further research, the use of Gabonese anti-diabetic plants is important to ensure the safety of the diabetic patients in Gabon.Peer reviewedFinal Accepted Versio