4,998 research outputs found

    Principales dispositivos tecnol?gicos que intervienen en el proceso de aprendizaje en los alumnos de grado d?cimo de la instituci?n educativa San Bernardo del municipio de Ibagu?

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    40 p. Recurso Electr?nicoEn este art?culo se presentan los resultados de una investigaci?n adelantada con estudiantes de d?cimo grado de la Instituci?n Educativa San Bernardo ubicada en la zona rural del municipio de Ibagu?. El objetivo era determinar si los dispositivos tecnol?gicos usados por alguno(as) estudiantes incid?an en su proceso de aprendizaje. El enfoque metodol?gico que se utiliz? fue de car?cter mixto; Desde una perspectiva cualitativa, se recurri? a la entrevista semiestructurada, observaciones a la poblaci?n seleccionada, y desde la cuantitativa, a la encuesta de tipo abierta; el muestreo es probabil?stico no intencional, con 20 estudiantes entre los 15 y 18 a?os. Tambi?n, participaron algunos docentes que orientan diferentes ?reas en este grado. En los resultados encontrados se evidencia que en la poblaci?n seleccionada la mayor?a de los estudiantes hacen uso de los dispositivos tecnol?gicos en horas de clase; Adem?s, el manejo que le hacen a estos equipos es de forma inapropiada en (Redes sociales, juegos, chat y llamadas) causando distracci?n en sus actividades acad?micas. La investigaci?n permiti? concluir que son m?ltiples los factores que inducen a los estudiantes a utilizar tales dispositivos en el aula de clase; entre ellos, el poco inter?s de los estudiante por los aprendizajes te?ricos, la escasa motivaci?n por parte del docente al momento de desarrollar sus clases dado que privilegia las clases magistrales, por su parte, los docentes expresan el precario inter?s de los estudiante por formarse acad?micamente.In this article shows the results of an advanced research with 10 grade high school from San Bernardo educational institution of Ibagu? (Instituci?n eductiva San Bernardo del municipio de Ibagu?). The main goal was to determine if technological devices used for some students would influence in their learning process. The methodological focus that was used is about mixed character; from a qualitative perspective, it is used to half-estructured interview, observations to the target population from this research, and since the cuantitative character one, to the open type survey; the sampling is probabilistic sampling is unintentional, with a population of 20 students between 15 and 18 years old. In other hand, some teachers have been population participant who lead different subjects in that grade of high school. In the found results it may show that in the chosen populace the majority of students make use of technological devices in time class; In addition, the usages which make to those devices is in an inappropriate way in social media, games, chat and calls causing distraction in their academic activities. Keywords: Technological devices, learning process, school performance

    Penggunaan Pemanis Rendah Kalori Pada Pembuatan Velva Ubi Jalar Oranye (Ipomoea Batatas L.)

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    Tujuan penelitian ini untuk mengetahui pengaruh penggunaan pemanis rendah kalori terhadap sifat sensori velva yang terbaik,selanjutnya dianalisis fisik (overrun dan daya leleh) serta kimia (kadar air, padatan terlarut, kadar pati, total kalori, aktivitasantiosidan dan β-karoten) dibandingkan dengan kontrol (sukrosa). Metode penelitian menggunakan Rancangan Acak Lengkap(RAL) dengan satu faktor yaitu jenis pemanis rendah kalori (stevia, madu dan sorbitol). Tiap perlakuan dilakukan sebanyak 3 kaliperulangan dan 2 kali analisis. Hasil analisis sensori menunjukkan bahwa penggunaan pemanis madu dan sorbitol memiliki tingkatkesukaan lebih tinggi dibandingkan pemanis stevia pada semua parameter velva. Overrun velva dengan pemanis sukrosa 25,51%,sorbitol 26,38% dan madu 27,04 %. Daya leleh velva dengan pemanis sukrosa 15,51 menit, sorbitol 15,38 menit dan madu 15,12menit. Kadar air velva dengan pemanis sukrosa 70,94%, sorbitol 73,874% dan madu 77,398 %; padatan terlarut velva denganpemanis sukrosa 26,13°Brix, sorbitol 23,00°Brix dan madu 20,03°Brix; kadar pati velva dengan pemanis sukrosa 90,53%, sorbitol25,83% dan madu 86,24%; total kalori velva dengan pemanis sukrosa 4058,28 kal/gram, sorbitol 3963,11 kal/gram dan madu3594,55 kal/gram; aktivitas antioksidan velva dengan pemanis sukrosa 3,01%, sorbitol 2,75% dan madu 4,93% dan β-karoten velvadengan pemanis sukrosa 28,77 μg/g, sorbitol 34,47 μg/g dan madu 87,50 μg/g

    Penerapan Strategi Pembelajaran Aktif Tipe True False Chain Untuk Meningkatkan Hasil Belajar Siswa Pada Pokok Bahasan Reaksi Redoks Kelas X SMA Negeri 4 Pekanbaru

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    An experimental research on the application of the active learning strategy typetrue false chain has been concluded to investigate the improvement of studentlearning outcomes on the subject of the oxidation-reduction reaction in class XSMA Negeri 4 Pekanbaru. From three classes of the population, it was taken twoclasses as the homogeneous samples, i.e. X.8 and X.7. The X.8 class was a controlclass in which they were used to teach by conventional teaching and learningprocess, while the X.7 class was taken as the experimental class in which theywere given the treatment of the active learning strategies type True False Chainimplementation. The data of the research was gathered by using testingtechniques, namely the pre-test and post-test. Before the pre-test and post-test, thesamples were tested by using a homogeneity test of homogeneity through T-test ofthe two parties in order to obtain two homogeneous classes. The difference inpretest-posttest values was analyzed by using two T-test samples of the party thataimed to test the truth of the hypothesis. Based on the results obtained bystatistical calculation that tvalue> ttable (2.070> 1.67), so it can be concluded thatthe application of active learning strategies type True False Chain can improvestudents\u27 learning outcomes on the subject of oxidation-reduction reactions inclass X of SMA Negeri 4 Pekanbaru

    Pengembangan Buku Ajar Matakuliah Biologi Sel Berbasis In Silico

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    The material presented in Cell Biology course one of them is the Cell Aging (Aging). In these materials can be developed research in Silico to broaden the knowledge of students with innovative bioinformatics approach based learning with a reverse screening method. The method used is Dick and Carey (2009) Model Development. The results of research in the form textbook Cell Biology courses based in Silico which has been validated by subject matter experts, media, and small-scale trials. Results from subject matter experts by 91.43% for feasibility component contents, 77.33% for eligibility presentation and 72.72% for the use of language. For media experts obtained 89.70% and 93% for small-scale trials.Materi yang disajikan dalam matakuliah Biologi Sel salah satunya adalah Penuaan Sel (Aging). Pada materi ini dapat dikembangkan penelitian In Silico untuk memperluas pengetahuan mahasiswa dengan inovasi pembelajaran berbasis pendekatan Bioinformatika dengan metode reverse screening. Metode penelitian yang digunakan adalah Model Pengembangan Dick and Carey (2009). Hasil penelitian berupa buku ajar matakuliah Biologi Sel berbasis In Silico yang telah divalidasi oleh ahli materi, media, dan uji coba skala kecil. Hasil dari ahli materi sebesar 91,43% untuk komponen kelayakan isi, 77,33% untuk kelayakan penyajian dan 72,72% untuk penggunaan bahasa. Untuk ahli media diperoleh 89,70% dan 93% untuk uji coba skala kecil

    CR3 and Dectin-1 Collaborate in Macrophage Cytokine Response through Association on Lipid Rafts and Activation of Syk-JNK-AP-1 Pathway

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    Copyright: © 2015 Huang et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited Acknowledgments We are grateful to the Second Core Laboratory of Research Core Facility at the National Taiwan University Hospital for confocal microscopy service and providing ultracentrifuge. We thank Dr. William E. Goldman (University of North Carolina, Chapel Hill, NC) for kindly providing WT and ags1-null mutant of H. capsulatum G186A. Funding: This work is supported by research grants 101-2320-B-002-030-MY3 from the Ministry of Science and Technology (http://www.most.gov.tw) and AS-101-TP-B06-3 from Academia Sinica (http://www.sinica.edu.tw) to BAWH. GDB is funded by research grant 102705 from Welcome Trust (http://www.wellcome.ac.uk). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.Peer reviewedPublisher PD

    Pengaruh Ketebalan Media Tanam Dan Pupuk Daun Terhadap Pertumbuhan Dan Hasil Bibit Kentang (Solanum Tuberosum L.) G1 Varietas Granola Kembang

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    Penyebab penurunan produksi kentang di Indonesia ialah kurangnya ketersediaan bibit bermutu dan teknik budidaya yang khusus seperti ketebalan media tanam dan waktu pemberian pupuk. Bibit kentang G0 diperoleh hasil stek mini dari kultur jaringan yang bebas virus, oleh sebab itu perlu diperbanyak untuk menghasilkan umbi G1. Salah satu hal yang mempengaruhi hasil umbi kentang ialah ketebalan media tanam. Ketebalan media tanam yang berbeda akan mempengaruhi pada jumlah umbi. Faktor utama pada pupuk daun ialah manfaat tiap unsur hara yang dikandung oleh pupuk daun bagi perkembangan tanaman dan peningkatan hasil panen. Waktu pemberian pupuk daun yang berbeda dapat meningkat-kan hasil panen. Penelitian ini bertujuan untuk mengetahui pengaruh ketebalan media tanam dan waktu pemberian pupuk daun terhadap pertumbuhan dan hasil kentang (Solanum tuberosum L.) G1 va-rietas Granola Kembang. Penelitian di-laksanakan pada bulan Mei 2014 sampai dengan Agustus 2014, di Kebun Percobaan Cangar, Desa Sumber Brantas, Kecamatan Bumiaji, Kota Batu. Rancangan yang digunakan dalam penelitian ini adalah Rancangan Acak Kelompok (RAK) dengan 10 perlakuan yang diulang 3 kali. Hasil penelitian menunjukkan ketebalan media tanam 15 cm+pemberian pupuk daun Gandasil B pada umur 21, 28, 35, dan 42 hst menghasilkan tinggi tanaman yang lebih tinggi pada umur 42 dan 56 hst dibanding perlakuan yang lain. Perlakuan ketebalan media tanam dan interval pemberian pupuk daun Gandasil B tidak mempengaruhi semua variabel pengamatan dan komponen hasil

    Persepsi Sehat-sakit dan Pola Pencarian Pengobatan Masyarakat Daerah Pelabuhan (Kajian Kualitatif di Daerah Pelabuhan Tanjung Perak)

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    The problems of urban health should be concerned because of the rapid development of cities, especially in highly populated areas as in ports and industry centers. The study aimed to identify people seeking behaviors in the port areas, the perception on health-sick in the port communities, and the responses to health center's services. This was a qualitative study. Respondents were selected by local Rukun Tetangga (Households Leaders) or Rukun Warga (administrative unit at the next-to-lowest level in city) based on the income in each areas which categorized as not enough. Selected respondents were divided in 2 (two) groups, men workers and fertile aged women. The location of the study were at Rukun Warga 9 and 6 of Kelurahan Perak Utara (North Perak Kelurahan) and at Rukun Warga 2 of Kelurahan Perak Utara (North Perak Kelurahan) in Pabean Cantikan Sub-district, Tanjung Perak port areas. Data were collected by focus group discussion (FGD) in 3 (three) sub-groups of men workers and fertile aged women, respectively. There were 8-10 respondents in each sub-groups. The data were analyzed by content analysis methods. Results showed the perception on health-sick in men workers was wider in comparison to fertile aged women because if they were having influenza but still could work then they considered not sick, meanwhile for the fertile aged women if they were feeling differences in their bodies then they consider as sick. But both groups had the same perception on health­ sick for their children, there were "healthy children if they were not fusser, not weak, moving, actively play. The groups were also had the same perception on dental sick that was a severe sick. Furthermore, the majority mentioned that if getting sick, they did self medication firstly then if not getting better they visit health workers. But for their children if getting sick, they were directly sent to health workers. The responses for health center services varied in both groups. The selection to health center was merely because of cheap although mostly said that they were not free enough to express their concerns, medication was not good and examiners were not doctors. It concludes there was a wider perception on health among man worker groups and the pattern of health seeking behavior was by self medication at first, then if not better to health workers. The community still used traditional treatments. The health center services were not a good choice because the people were not sure for the quality and the kind of medication, beside was the open time was limited

    Populasi Bakteri dan Jamur pada Rizosfer Caisim (Brassica Juncea L.) yang Ditanam di Tanah Dikontaminasi Insektisida Organoklorin Setelah Aplikasi Konsorsia Mikroba dan Kompos

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    Organochlorine insecticide was banned for agriculture but nowadays its residue was still found in some agricultural soil. One of ways to lowering organochlorine residue in soil is by used of degrading-organochlorine microbial consortia accompanied with compost application. However, application of exogenous microbes might affect bacterial and fungal population in soil. The pot experiment has been set up to verify the influence of Pseudomonas mallei and Trichoderma sp. and compost on total bacteria and fungi on rhizosphere of Cai Sim (Brassica juncea L.) grown on Andisols which were contaminated with organochlorine insecticide of heptachlor, endosulfan, dieldrin and DDT. Experimental design was Factorial Randomized Block Design with three replicates. The first factor was microbial consortia of P.mallei and Trichoderma sp., and the second one was kind of compost. The result showed that effect of microbial consortia on total bacteria population was determined by kind of compost. Total bacterial population in rhizosphere of Cai Sim grown with cow manure compost and microbial consortia was more increased. However, microbial consortia as well as any kind of compost did not influence total fungal population in Cai Sim rhizosphere. In this experiment, total bacterial and fungal population in rhizosphere reached 109 cfu g-1 and 104 cfu g-1 respectively, indicating that major microbial population in rhizosphere was in the normal range
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