1,741 research outputs found

    Pengaruh Penerapan Model Pembelajaran Kooperatif Tipe Tps terhadap Hasil Belajar Ekonomi

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    This research is motivated by the results of the economic study mid second semester exams of class X students of SMAN 7 Padang Academic Year 2012/2013 is still low under minimum completeness criteria . This study aims to determine whether the results of the economic study of students who apply cooperative learning model TPS is higher than the results of the economic study of students who apply conventional teaching class X SMAN 7 Padang . This type of research is experimental . The study population was a tenth grade students of SMAN 7 Padang Academic Year 2012/2013 . Based on economic achievement test scores of students , the average values obtained experimental class and control class 68.13 76.15 . Z - test analysis results , obtained Zhitung ( 47.18 ) > Ztabel ( 1.645 ) which means that the hypothesis is accepted . From this study it can be concluded that the results of the economic study of students who use cooperative learning model TPS higher than the students who apply conventional teaching class X student of SMAN 7 Padang . To the researchers suggested that teachers especially teachers of SMAN 7 Padang economic and high school teachers in general to implement cooperative learning model TPS as an alternative learning model that can be used to improve student learning outcomes . And to researchers who are interested are advised to conduct advanced research in different materials .Key Words: Think Pair Share Cooperative Methode, Economic Study Result

    Peningkatan Hasil Belajar Tema 7 Melalui Model Pembelajaran Inquiry Pada Siswa Kelas 5 Sdn Cebongan 01 Salatiga Semester II Tahun 2018/2019

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    Penelitian ini bertujuan untuk mendeskripsikan langkah-langkah penerapan model pembelajaran Inquiry dan mengetahui peningkatan hasil belajar tema 7 muatan IPS, Bahasa Indonesia dan IPA pada siswa kelas 5 di SDN Cebongan 01 Salatiga. Jenis penelitian menggunakan Penelitian Tindakan Kelas (PTK). Teknik pengumpulan data yaitu observasi dan tes hasil belajar. Alat yang digunakan dalam pengumpulan data adalah lembar observasi dan soal-soal tes yang kemudian dianalisis dengan cara deskriptif kuantitatif. Hasil penelitian menunjukkan peningkatan persentase rata-rata hasil belajar. Hal ini ditunjukan dengan peningkatan hasil belajar siswa dari prasiklus yang hanya 8 siswa meningkat menjadi 14 siswa tuntas dengan rata-rata 72 pada siklus I. Pada siklus II siswa yang mencapai KKM mencapai 17 orang dengan rata-rata 78,28. Berdasarkan hasil penelitian dapat disimpulkan bahwa model pembelajaran Inquiry dapat meningkatkan hasil belajar tema 7 muatan IPS, Bahasa Indonesia dan IPA pada siswa kelas 5 di SD Negeri Cebongan 01 Salatiga

    Peningkatan Kemampuan Berpikir Kritis melalui Model Problem Based Learning pada Muatan Matematika Kelas V SDN Salatiga 01

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    Penelitian tindakan kelas ini menggunakan model Kennis dan Taggart yang terdiri dari 2 siklus, setiap siklus terdiri dari tahap perencanaan, tindakan-observasi, dan refleksi dengan tujuan melihat peningkatan kemampuan berpikir kritis pada muatan matematika dengan menggunakan model Problem Based Learning (PBL). Subjek dalam penelitian ini adalah siswa kelas V SDN Salatiga 01 sejumlah 41 siswa. Kriteria keberhasilan sebesar ≄70% pada kategori baik. Hasil penelitian menunjukan bahwa: (1) Model Problem Based Learning dapat meningkatkan kemapuan berpikir kritis siswa secara klasikal.hal ini dilihat dari observasi siswa pada siklus I dan II. Skor rata-rata observasi siswa pada siklus I sebesar 2,28 atau 57% dan siklus II sebesar 2,85 atau 73,18%. (2) Kemampuan berpikir kritis mempengaruhi hasil belajar dilihat dari peningkatan skor ketuntasan hasil belajar siswa yang mencapai 48,78% pada siklus I dan 73,18% pada siklus II. Dari hasil tersebut model PBL dapat meningkatkan kemampuan berpikir kritis yang berpengaruh pada hasil belajar siswa pada muatan matematika siswa kelas V SDN Salatiga 01

    PENINGKATAN PEMAHAMAN DAN IMPLEMENTASI BAHASA NASIONAL DAN INTERNASIONAL BAKU BAGI GURU PAUD DAN SD DI KECAMATAN GETASAN KABUPATEN SEMARANG

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    The Childhood Education (PAUD) and Elementary School (SD) teachers should have adequate skills and knowledge in teaching, instilling, and being an example or role model for their students. Therefore, it was necessary to increase professionalism in terms of the use of national languages as well as international languages which are needed today, so that Indonesian students can use standard Indonesian properly and correctly.Based on the conditions encountered, the community service team at the Teaching and Education Faculty (FKIP), Satya Wacana Christian University (SWCU) Salatiga carried out community service activities with the aim of opening paradigms and training early-level early childhood and elementary school teachers to have a complete understanding of the concept of standard national and international languages and have the opportunity to improve language competence, especially English. This activity was carried out in the form of training, debriefing, and teaching simulations by four FKIP, UKSW lecturers who have Indonesian, English and educational management backgrounds.The results of the implementation of this activity could be seen at the beginning of understanding of classroom language and obtaining references to the use of standard language in the classroom to be used as capital to apply the Indonesian and English concepts

    A Scalable Middleware Solution for Advanced Wide Area Web Services

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    To alleviate scalability problems in the Web, many researchers concentrate on how to incorporate advanced caching and replication techniques. Many solutions incorporate object-based techniques. In particular, Web resources are considered as distributed objects offering a well-defined interface. We argue that most proposals ignore two important aspects. First, there is little discussion on what kind of coherence should be provided. Proposing specific caching or replication solutions makes sense only if we know what coherence model they should implement. Second, most proposals treat all Web resources alike. Such a one-size-fits-all approach will never work in a wide-area system. We propose a solution in which Web resources are encapsulated in physically distributed shared objects. Each object should encapsulate not only state and operations, but also the policy by which its state is distributed, cached, replicated, migrated, etc

    SMARCB1 loss induces druggable cyclin D1 deficiency via upregulation of MIR17HG in atypical teratoid rhabdoid tumors

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    Atypical teratoid rhabdoid tumor (ATRT) is a fatal pediatric malignancy of the central neural system lacking effective treatment options. It belongs to the rhabdoid tumor family and is usually caused by biallelic inactivation of SMARCB1, encoding a key subunit of SWI/SNF chromatin remodeling complexes. Previous studies proposed that SMARCB1 loss drives rhabdoid tumor by promoting cell cycle through activating transcription of cyclin D1 while suppressing p16. However, low cyclin D1 protein expression is observed in most ATRT patient tumors. The underlying mechanism and therapeutic implication of this molecular trait remain unknown. Here, we show that SMARCB1 loss in ATRT leads to the reduction of cyclin D1 expression by upregulating MIR17HG, a microRNA (miRNA) cluster known to generate multiple miRNAs targeting CCND1. Furthermore, we find that this cyclin D1 deficiency in ATRT results in marked in vitro and in vivo sensitivity to the CDK4/6 inhibitor palbociclib as a single agent. Our study identifies a novel genetic interaction between SMARCB1 and MIR17HG in regulating cyclin D1 in ATRT and suggests a rationale to treat ATRT patients with FDA- approved CDK4/6 inhibitors. © 2020 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/156416/2/path5493.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/156416/1/path5493_am.pd

    Development and international validation of custom-engineered and code-free deep-learning models for detection of plus disease in retinopathy of prematurity: a retrospective study.

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    BACKGROUND: Retinopathy of prematurity (ROP), a leading cause of childhood blindness, is diagnosed through interval screening by paediatric ophthalmologists. However, improved survival of premature neonates coupled with a scarcity of available experts has raised concerns about the sustainability of this approach. We aimed to develop bespoke and code-free deep learning-based classifiers for plus disease, a hallmark of ROP, in an ethnically diverse population in London, UK, and externally validate them in ethnically, geographically, and socioeconomically diverse populations in four countries and three continents. Code-free deep learning is not reliant on the availability of expertly trained data scientists, thus being of particular potential benefit for low resource health-care settings. METHODS: This retrospective cohort study used retinal images from 1370 neonates admitted to a neonatal unit at Homerton University Hospital NHS Foundation Trust, London, UK, between 2008 and 2018. Images were acquired using a Retcam Version 2 device (Natus Medical, Pleasanton, CA, USA) on all babies who were either born at less than 32 weeks gestational age or had a birthweight of less than 1501 g. Each images was graded by two junior ophthalmologists with disagreements adjudicated by a senior paediatric ophthalmologist. Bespoke and code-free deep learning models (CFDL) were developed for the discrimination of healthy, pre-plus disease, and plus disease. Performance was assessed internally on 200 images with the majority vote of three senior paediatric ophthalmologists as the reference standard. External validation was on 338 retinal images from four separate datasets from the USA, Brazil, and Egypt with images derived from Retcam and the 3nethra neo device (Forus Health, Bengaluru, India). FINDINGS: Of the 7414 retinal images in the original dataset, 6141 images were used in the final development dataset. For the discrimination of healthy versus pre-plus or plus disease, the bespoke model had an area under the curve (AUC) of 0·986 (95% CI 0·973-0·996) and the CFDL model had an AUC of 0·989 (0·979-0·997) on the internal test set. Both models generalised well to external validation test sets acquired using the Retcam for discriminating healthy from pre-plus or plus disease (bespoke range was 0·975-1·000 and CFDL range was 0·969-0·995). The CFDL model was inferior to the bespoke model on discriminating pre-plus disease from healthy or plus disease in the USA dataset (CFDL 0·808 [95% CI 0·671-0·909, bespoke 0·942 [0·892-0·982]], p=0·0070). Performance also reduced when tested on the 3nethra neo imaging device (CFDL 0·865 [0·742-0·965] and bespoke 0·891 [0·783-0·977]). INTERPRETATION: Both bespoke and CFDL models conferred similar performance to senior paediatric ophthalmologists for discriminating healthy retinal images from ones with features of pre-plus or plus disease; however, CFDL models might generalise less well when considering minority classes. Care should be taken when testing on data acquired using alternative imaging devices from that used for the development dataset. Our study justifies further validation of plus disease classifiers in ROP screening and supports a potential role for code-free approaches to help prevent blindness in vulnerable neonates. FUNDING: National Institute for Health Research Biomedical Research Centre based at Moorfields Eye Hospital NHS Foundation Trust and the University College London Institute of Ophthalmology. TRANSLATIONS: For the Portuguese and Arabic translations of the abstract see Supplementary Materials section

    Proceedings from the Inaugural American Initiative in Mast Cell Diseases (AIM) Investigator Conference

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    The American Initiative in Mast Cell Diseases (AIM) held its inaugural investigator conference at Stanford University School of Medicine in May 2019. The overarching goal of this meeting was to establish a Pan-American organization of physicians and scientists with multidisciplinary expertise in mast cell disease. To serve this unmet need, AIM envisions a network where basic, translational, and clinical researchers could establish collaborations with both academia and biopharma to support the development of new diagnostic methods, enhanced understanding of the biology of mast cells in human health and disease, and the testing of novel therapies. In these AIM proceedings, we highlight selected topics relevant to mast cell biology and provide updates regarding the recently described hereditary alpha-tryptasemia. In addition, we discuss the evaluation and treatment of mast cell activation (syndromes), allergy and anaphylaxis in mast cell disorders, and the clinical and biologic heterogeneity of the more indolent forms of mastocytosis. Because mast cell disorders are relatively rare, AIM hopes to achieve a coordination of scientific efforts not only in the Americas but also in Europe by collaborating with the well-established European Competence Network on Mastocytosis.The research reported in this publication was supported by the National Center for Advancing Translational Sciences of the National Institutes of Health (NIH) (award no. R13TR002722 to J.G.). The content is solely the responsibility of the authors and does not necessarily represent the official views of the NIH. We thank The Mast Cell Disease Society, Inc (TMS), a national 501c3 nonprofit, for their partnership and support of AIM, for patient-centered research, and for sponsoring international physicians at this inaugural meeting. J.G. expresses gratitude for the support of the Charles and Ann Johnson Foundation, the staff of the Stanford Mastocytosis Center, and the Stanford Cancer Institute Innovation Fund. M.C., J.J.L., and D.D.M. are supported in part by the Division of Intramural Research of the National Institute of Allergy and Infectious Diseases, NIH. D.F.D. is supported by the Asthma and Allergic Diseases Cooperative Research Centers Opportunity Fund (award no. U19AI07053 from the NIH). P.V. has been supported by the Austrian Science Fund (FWF) (grant nos. F4701-B20, F4704-B20, and P32470-B)

    Mast Cell Diseases in Practice and Research: Issues and Perspectives Raised by Patients and Their Recommendations to the Scientific Community and Beyond

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    Background: Since 2010, patients and physicians have collaborated to understand unmet needs of patients with mast cell diseases, incorporating mastocytosis and mast cell activation disorders, which include mast cell activation syndromes. Objective: This Open Innovation in Science project aims to expand understanding of the needs of patients affected by mast cell diseases, and encourage global communication among patient advocacy groups, physicians, researchers, industry, and government. A major aim is to support the scientific community's efforts to improve diagnosis, management, therapy, and patients’ quality of life by addressing unmet needs. Methods: In collaboration with mast cell disease specialists, 13 patient advocacy groups from 12 countries and regions developed lists of top patient needs. A core team of leaders from patient advocacy groups collected and analyzed the data and proposed possible actions to address patient needs. Results: Findings identified similarities and differences among participating countries in unmet needs between patients with mastocytosis and those with mast cell activation syndromes. Issues emphasized struggles relating to the nature and rarity of mast cell diseases, their impact on quality of life, the diagnostic process, access to appropriate care, more effective treatment, and the need for research. Conclusions: Solutions vary across countries because situations differ, in particular regarding the existence of and access to centers of excellence and reference centers. Multifaceted mast cell activation syndrome barriers necessitate innovative approaches to improve access to appropriate care. The outcomes of this project should greatly support scientists and clinicians in their efforts to improve diagnosis, management, and treatment of patients with mastocytosis and mast cell activation disorders.The authors thank Tania Bray, Jan Hempstead, Heather Mayne, Joanne Mulder-Brambleby, and Irene Wilson for their supporting contributions, and all patients and families affected by MCDs, who shared their needs and concerns for development of this project. Authors involved in study conception and design were P. Valent, S.V. Jennings, C.C. Finnerty, J.S. Hobart, M. Martín-Martínez, K.A. Sinclair, V.M. Slee, J. Agopian, C. Akin, I. Álvarez-Twose, P. Bonadonna, A.A. Bowman, K. Brockow, H. Bumbea, C. de Haro, J.S. Fok, K. Hartmann, N. Hegmann, O. Hermine, M. Kalisiak, C.H. Katelaris, J. Kurz, P. Marcis, D. Mayne, D. Mendoza, A. Moussy, G. Mudretzkyj, N. Nidelea Vaia, M. Niedoszytko, H. Oude Elberink, A. Orfao, D.H. Radia, S. Rosenmeier, E. Ribada, W. Schinhofen, J. Schwaab, F. Siebenhaar, M. Triggiani, G. Tripodo, R. Velazquez, Y. Wielink, F. Wimazal, T. Yigit, and C. Zubrinich. Authors involved in acquisition and review of data were S.V. Jennings, C.C. Finnerty, J.S. Hobart, M. Martín-Martínez, K.A. Sinclair, V.M. Slee, J. Agopian, C. Akin, I. Álvarez-Twose, P. Bonadonna, A.A. Bowman, K. Brockow, H. Bumbea, C. de Haro, J.S. Fok, K. Hartmann, N. Hegmann, O. Hermine, M. Kalisiak, C.H. Katelaris, J. Kurz, P. Marcis, D. Mayne, D. Mendoza, A. Moussy, G. Mudretzkyj, N. Nidelea Vaia, M. Niedoszytko, H. Oude Elberink, A. Orfao, D.H. Radia, S. Rosenmeier, E. Ribada, W. Schinhofen, J. Schwaab, F. Siebenhaar, M. Triggiani, G. Tripodo, R. Velazquez, Y. Wielink, F. Wimazal, T. Yigit, C. Zubrinich, and P. Valent. The Core Group (analysis and interpretation of data and drafting of the manuscript) include S.V. Jennings, C.C. Finnerty, J.S. Hobart, M. Martín-Martínez, K.A. Sinclair, and V.M. Slee. Critical revision was performed by S.V. Jennings, C.C. Finnerty, J.S. Hobart, M. Martín-Martínez, K.A. Sinclair, V.M. Slee, J. Agopian, C. Akin, I. Álvarez-Twose, P. Bonadonna, A.A. Bowman, K. Brockow, H. Bumbea, C. de Haro, J.S. Fok, K. Hartmann, N. Hegmann, O. Hermine, M. Kalisiak, C.H. Katelaris, J. Kurz, P. Marcis, D. Mayne, D. Mendoza, A. Moussy, G. Mudretzkyj, N. Nidelea Vaia, M. Niedoszytko, H. Oude Elberink, A. Orfao, D.H. Radia, S. Rosenmeier, E. Ribada, W. Schinhofen, J. Schwaab, F. Siebenhaar, M. Triggiani, G. Tripodo, R. Velazquez, Y. Wielink, F Wimazal, T. Yigit, C. Zubrinich, and P. Valent

    Mutation Analysis of NR5A1 Encoding Steroidogenic Factor 1 in 77 Patients with 46, XY Disorders of Sex Development (DSD) Including Hypospadias

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    BACKGROUND: Mutations of the NR5A1 gene encoding steroidogenic factor-1 have been reported in association with a wide spectrum of 46,XY DSD (Disorder of Sex Development) phenotypes including severe forms of hypospadias. METHODOLOGY/PRINCIPAL FINDINGS: We evaluated the frequency of NR5A1 gene mutations in a large series of patients presenting with 46,XY DSD and hypospadias. Based on their clinical presentation 77 patients were classified either as complete or partial gonadal dysgenesis (uterus seen at genitography and/or surgery, n = 11), ambiguous external genitalia without uterus (n = 33) or hypospadias (n = 33). We identified heterozygous NR5A1 mutations in 4 cases of ambiguous external genitalia without uterus (12.1%; p.Trp279Arg, pArg39Pro, c.390delG, c140_141insCACG) and a de novo missense mutation in one case with distal hypospadias (3%; p.Arg313Cys). Mutant proteins showed reduced transactivation activity and mutants p.Arg39Pro and p.Arg313Cys did not synergize with the GATA4 cofactor to stimulate reporter gene activity, although they retained their ability to physically interact with the GATA4 protein. CONCLUSIONS/SIGNIFICANCE: Mutations in NR5A1 were observed in 5/77 (6.5%) cases of 46,XY DSD including hypospadias. Excluding the cases of 46,XY gonadal dysgenesis the incidence of NR5A1 mutations was 5/66 (7.6%). An individual with isolated distal hypopadias carried a de novo heterozygous missense mutation, thus extending the range of phenotypes associated with NR5A1 mutations and suggesting that this group of patients should be screened for NR5A1 mutations
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