نتایج جستجو برای: initial crown

تعداد نتایج: 386632  

2000
Larry Teuber Judy Jernstedt Karl Foord

The alfalfa (Medicaqo sativa L.) seedling develops into a mature plant by differentiation of several stems which form the primary crown. The initial four stems are the primary stem, two stems differentiating from the axils of the cotyledons and a stem from the axil of the unifoliolate leaf. Establishment of the primary crown is dependent on the development of these initial stems and the degree ...

2009
Alf Volchansky Peter Cleaton-Jones

INTRODUCTION Gingival margin position in relation to synthetic crowns and crown length could be etiological factors in gingival health. CASE PRESENTATION A 27-year-old male presented with necrotizing ulcerative gingivitis with short clinical crowns suggestive of altered passive eruption. Three years after the initial diagnosis, he presented with crowns on the maxillary incisors. There were sh...

Journal: :Agronomy 2021

In strawberry production, the combination of a high productive performance and fruits with desirable physicochemical characteristics requires use plants good quality initial vigor. This study aimed to evaluate effect different crown diameters on fruit cultivar ‘Pircinque’ (Short Day). The was conducted in two evaluation cycles (2016/2017 2017/2018). experimental design divided into randomized b...

Journal: :Remote Sensing 2014
Zhen Zhen Lindi J. Quackenbush Lianjun Zhang

Region growing is frequently applied in automated individual tree crown delineation (ITCD) studies. Researchers have developed various rules for initial seed selection and stop criteria when applying the algorithm. However, research has rarely focused on the impact of tree-oriented growth order. This study implemented a marker-controlled region growing (MCRG) algorithm that considers homogeneit...

Journal: :The Angle orthodontist 2007
Sheausoon Sia Yoshiyuki Koga Noriaki Yoshida

OBJECTIVE To determine the location of center of resistance and the relationship between height of retraction force on power arm (power-arm length) and movement of anterior teeth (degree of rotation) during sliding mechanics retraction. MATERIALS AND METHODS Three human subjects with maxillary protrusion were selected for this study. Initial tooth displacements of maxillary right central inci...

2005
Yongwei Sheng Peng Gong Gregory S. Biging

similar failures1. Current commercial packages are not deAbstract signed to extract canopy surfaces with high variability in the Canopy surface data are desirable in forestry, but they are vertical direction. difficult to collect in the field. Existing surface reconstruction Sheng et al. (2001) introduced a model-based photogramtechniques cannot adequately extract canopy surfaces, esmetric appr...

2015
Jessica Preisler Julia Kopeika Laure Ismail Veluppillai Vathanan Jessica Farren Yazan Abdallah Parijat Battacharjee Caroline Van Holsbeke Cecilia Bottomley Deborah Gould Susanne Johnson Catriona Stalder Ben Van Calster Judith Hamilton Dirk Timmerman Tom Bourne

OBJECTIVES To validate recent guidance changes by establishing the performance of cut-off values for embryo crown-rump length and mean gestational sac diameter to diagnose miscarriage with high levels of certainty. Secondary aims were to examine the influence of gestational age on interpretation of mean gestational sac diameter and crown-rump length values, determine the optimal intervals betwe...

2015
Hossein Afshar Mehdi Ghandehari Banafsheh Soleimani

OBJECTIVES It is not clear what type of pre-crimped crown is more successful in achieving greater marginal adaptation following re-crimping. This study aimed to assess the changes in the circumference of 3M ESPE and MIB pre-crimped stainless steel crowns (SSCs) for the primary maxillary and mandibular first and second molars following re-crimping. MATERIALS AND METHODS This was an in-vitro, e...

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