77 research outputs found

    HUBUNGAN USIA SKELETAL DENGAN PUNCAK PERTUMBUHAN PADA PASIEN USIA 10-14 TAHUN DI RSGM UNSYIAH

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    ABSTRAKNama: Laveine Sukma ShatiaProgram Studi: Pendidikan Dokter GigiFakultas: Kedokteran GigiJudul :Hubungan Usia Skeletal dengan Puncak Pertumbuhan pada Pasien Usia 10-14 Tahun di RSGM Unsyiah Pengetahuan mengenai kapan terjadinya puncak pertumbuhan merupakan hal yang sangat penting untuk menentukan kapan pertumbuhan aktif berakhir, sehingga akan diperoleh keberhasilan perawatan pasien ortodonti. Usia skeletal dapat menjadi pilihan yang paling tepat dalam menentukan kapan terjadinya puncak pertumbuhan tersebut. Tujuan penelitian ini untuk melihat hubungan antara usia skeletal dengan puncak pertumbuhan pada pasien usia 10-14 tahun di RSGM Unsyiah. Jenis penelitian ini adalah analitik dengan teknik pengambilan sample adalah total sampling. Penelitian ini menggunakan data sekunder yaitu foto sefalometri lateral dan rekam medik, serta menggunakan metode Bacceti dkk. untuk menentukan maturasi cervical stage pasien. Penelitian ini dianalisis dengan uji Chi-Square yang menunjukkan bahwa tidak terdapat hubungan antara usia skeletal dengan puncak pertumbuhan pada pasien usia 10-14 tahun di RSGM Unsyiah dengan nilai p=0,159 (p>0,05). Namun, terdapat hubungan pada perempuan jika dianalisis berdasarkan jenis kelamin.Kata Kunci : usia skeletal, puncak pertumbuhan, tahap servikal dan metode Bacceti dkk.ABSTRACTName: Laveine Sukma ShatiaStudy Programme: DentistryFaculty: DentistryTitle :Association of Skeletal Age and Growth Spurt in Patients Aged 10-14 Years at RSGM Unsyiah Understanding the timing of the growth spurt is very important to determine when active growth is over, so that successful orthodontic treatment would be obtained. Skeletal age may be the most appropriate choice in determining the timing of the growth spurt. The purpose of this study is to examine the association of skeletal age and growth spurt in patients aged 10-14 years at RSGM Unsyiah. This is an analytical study which used total sampling as the technique to collect the data. This study used secondary data such as lateral cephalograms and medical records, and also used the method of Bacceti et al. to determine the patient's cervical stage maturation. This study was analyzed with Chi-Square test which showed that there was no association of skeletal age and growth spurt in patients aged 10-14 years at RSGM Unsyiah with p=0.159 (p>0.05). However, there was a association in girls when analyzed by sex.Keywords: skeletal age, growth spurt, cervical stage, and method of Bacceti et.al

    Paleomagnetic Study of Mesozoic Continental Sediments Along the Northern Tien Shan (China) and Heterogeneous Strain in Central Asia

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    A paleomagnetic study of rocks from the northern foot of the Tien Shan and the southern border of the Dzungar Basin, east of Urumqi (44.2°N, 86.0°E), spanning ages from middle Jurassic to early Tertiary was carried out to constrain the tectonic evolution in central Asia since Mesozoic time. Five middle Jurassic sites reveal a remagnetized direction close to the present Earth field in geographic coordinates: D = 6.6°, I = 72.6° (α_(95) = 7.4°). Thirteen out of 17 upper Jurassic and lower Cretaceous sites yield a characteristic direction (stratigraphic coordinates) of D = 12.7°, I = 48.6° (α_(95) = 5.5°). Nine of 16 upper Cretaceous and lower Tertiary sites provide a characteristic direction of D = 12.5°, I = 51.3° (α_(95) = 6.9°). The latter two directions pass fold and reversal tests. The pole positions are close to each other and to the Besse and Courtillot [1989, 1990] Eurasian apparent polar wander path, for ages ranging from 130 to 70 Ma. However, the difference in paleolatitudes amounts to about 5.9° ± 3.7°, which could indicate significant continental shortening in the Altai Mountains and perhaps further north, subsequent to India-Asia collision. The pole positions from the Dzungar Basin are close to those found for the Tarim [Li et al., 1988a], leading to an insignificant paleolatitude difference (3.0° ± 6.9°), but showing a larger difference in declination (8.6° ± 8.7°). These paleomagnetic results are compatible with a model of heterogeneous deformation in the western part of the collision zone between India and Siberia. A significant shortening in the Altai, a slight counterclockwise rotation of the Dzungar block, the westward-increasing shortening in the Tien Shan with attendant clockwise rotation of the Tarim block are all consistent with this model, in which Tibet, the Tien Shan and the Altai undergo differential strain along strike in a relay fashion, with the total India-Siberia convergence remaining approximately constant

    Carboniferous plant physiology breaks the mold

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    Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/155970/1/nph16460-sup-0001-SupInfo.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/155970/2/nph16460_am.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/155970/3/nph16460.pd

    The Cyclopteris of Laveineopteris (Late Carboniferous pteridosperm). Fancies and facts: methodological and taxonomical implications

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    Cyclopterid folioles commonly borne on the fronds of Late Carboniferous neuropterid plants were recently interpreted as entire shade leaves that were, among the taxa exhibiting a neuropteroid pinnate foliage, only present in the medullosalean genus Laveineopteris. Numerous speculations concerning the physiology, growth habit, ecology and the reconstruction of the Laveineopteris plant were derived from this assertion. It is shown in this paper that this assertion is inaccurate. Cyclopterids are not entire leaves. They are heteromorphic folioles confined to the fronds, and mainly located in the proximal parts of them. They are homologous to ultimate pinnae sometines being slightly bipinnatifid at the base. In addition to a photosynthetic role, cyclopterids were also playing a protective role for the circinately coiled pinnate foliage segments during the early differentiation of the fronds. It is also shown that cyclopterids are not restricted to the sole genus Laveineopteris among the neuropterids. The cuticular information on which several recent taxonomic treatments of the neuropterids were based is critically analyzed and found inadequate. The diagnoses of several neuropterid taxa are emended

    Via Crucis

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    Jacques Chalard (1921 – 2010)

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    International audienceMonsieur Jacques Chalard, membre de la SociĂ©tĂ© GĂ©ologique du Nord, et l’un des acteurs majeurs de la phalange des gĂ©ologues houillers qui ont contribuĂ©, aprĂšs la Seconde guerre mondiale, Ă  gagner la ‘bataille du charbon’ dans le Bassin houiller du Nord-Pas-de-Calais, nous a quittĂ©s le 16 Novembre 2010. Le prĂ©sent portrait va tenter de retracer briĂšvement la vie et le parcours professionnel et scientifique de cet Ă©minent collĂšgue, dont le talent n’avait d’égal que sa pudeur et sa discrĂ©tio
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