نتایج جستجو برای: height ratio

تعداد نتایج: 590728  

al. et E. Ebrahimi

The effects of initial spacing layout on some allometric characteristics of 12-year-old Quercus castaneifolia trees grown in Central Mazandaran, north of Iran were examined. Trees were planted in 5 different layouts (1?1, 1.5?1.5, 2?2.5, 2?3 and 4?4 m). Tree height, diameter at breast height, natural pruning height and the survival of trees were recorded in each sample plot. Tree basal area and...

Journal: :مهندسی بیوسیستم ایران 0
عبدالستار دارابی سازمان تحقیقات، ترویج و آموزش کشاورزی رضا صالحی دانشگاه تهران محمدرضا اصلاحی سازمان تحقیقات ترویج و آموزش کشاورزی سید مصطفی ملائکه سازمان جهاد کشاورزی خوزستان

greenhouse structure has an important role in success of greenhouse production. this research was conducted to study problems related to vegetable greenhouse structure in khuzestan province for on year(2011-2012). for this purpose, 21 greenhouses were selected by simple randomized samplang and questionnaires were completed. the results revealed that the major problems in greenhouses vegetable p...

Journal: :Nutricion hospitalaria 2017
Ángel Martín Castellanos María Dolores Cabañas Armesilla Francisco Javier Barca Durán Pedro Martín Castellanos José Javier Gómez Barrado

Background: Obesity is a coronary risk factor associated to myocardial infarction although waist to-hip-ratio has shown higher predictive power. Objective: The aim of this study was a Receiver Operating Characteristic anthropometric analysis in infarcted males to identify the strength of association for simple measurements, obesity and indicators such as, waist to-hip-ratios, waist to-height-r...

Journal: :Critical care medicine 2005
Frédéric Lapostolle Christophe Gere Stephen W Borron Tomislav Pétrovic Frédéric Dallemagne Arielle Beruben Claude Lapandry Frédéric Adnet

OBJECTIVE Falls from height cause significant mortality in the urban environment, but reliable prognostic factors have not been identified. Even the intuitive relation between the distance fallen and mortality rate has been questioned. Our objective was to determine factors predictive of increased mortality rate in victims of falls from height. DESIGN Clinical observational study, retrospecti...

2017
Sung Hoon Choi HeeSang Lee Jae Hwan Cho Jin Il Jung Dong-Ho Lee

BACKGROUND Several scoring systems for cervical disc and facet joint degeneration, using radiography or computed tomography, have been developed and tested for reliability. However, definitions of disc height and facet joint space narrowing vary. To our knowledge, no study has reported quantitative data for normal radiologic values of the cervical spine in the Korean population. The purpose of ...

Journal: :Open journal of endocrine and metabolic diseases 2012
Roy T Sabo Chungfeng Ren Shumei S Sun

OBJECTIVES While researchers are increasingly recognizing the importance of adjusting waist circumference (WC) for height, no standard has yet been established. In this study we contrast three standard methods for indexing WC by height (using height, root-height and height-squared) via comparisons with age-specific optimal indices. STUDY DESIGN AND SETTING Measurements from 722 male and 746 f...

Journal: :آب و توسعه پایدار 0
علی دهنوی ناصر عادل پور سید محمدسعید موسوی سوداگر

this study investigates the amount of suspended solid particles in three drinking water wells, conducted several times per day in the city of mashhad. the results have also been used for the review and optimization of tested hydro-cyclones. for this purpose, 18 different hydro-cyclones, based on the experimental design process of the taguchi method, were designed and the affecting factors were ...

Journal: :Acta paediatrica 2008
Yannis Manios Georgia Kourlaba Anthony Kafatos Tina L Cook Aspasia Spyridaki George A Fragiadakis

AIM To compare the associations of several anthropometric indices (i.e. waist circumference [WC], waist-to-height ratio, body mass index (BMI) and waist-to-hip ratio) with the insulin resistance (IR) proxy measures in Greek schoolchildren. METHODS A random sample of 248 children was used. Fasting plasma glucose and serum insulin levels were measured. IR was estimated through homeostasis model...

Journal: :American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics 1994
T Aki R S Nanda G F Currier S K Nanda

The purpose of this study was to determine whether symphysis morphology could be used as a predictor of the direction of mandibular growth and to assess growth changes of the symphysis. Cross-sectional data included lateral cephalometric radiographs of 115 adults (58 women, 57 men) with the longitudinal sample a subset of 62 subjects (30 females, 32 males) at four age groups. The direction of m...

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