cross sectional 12
New Zealand adolescents' cellphone and cordless phone user
Sep 19, 2012This cross-sectional study recruited 373 Year 7 and 8 school students with a mean age of 12.3 years (range 10.3-13.7 years) from the Wellington region of New Zealand. Participants completed a questionnaire and measured their normal body-to-phone texting distances.
Structural A36 Steel Wide Flange I Beam Section Properties
The following chart table gives cross section engineering data for ASTM Structural Steel Wide Channel I Beam as follows
Delivery place preference and its associated factors among
A community based cross-sectional study design was employed in Simada district of Amhara Region, Northwest Ethiopia from March to May 2018. Women who delivered in the last 12 months and permanent resident of the district were included. Whereas, those who refused to participate and those lived 6 months in the district were excluded.
Time-series and cross-sectional momentum strategies under
Time-series and cross-sectional momentum strategies under alternative implementation strategies RonBird*†,XiaojunGao**$and$DannyYeung***$! ABSTRACT
applied. Each wire has a cross-sectional area of 0.025 in . *4—12. The load is supported by the four 304 stainless steel wires that are connected to the rigid members AB and DC Determine the angle of tilt of each member after the 500-1b load is applied. The members were originally horizontal, and each wire has a cross-sectional area of 0.025 in2.
Structural A36 Steel Channel Section Properties Table
ASTM Steel Channel Section Properties various sizes ranging C3 C15 ASTM A36 channel is one of the most widely used carbon steels in industry. A36 steel it is weldable, formable, and machinable. Galvanizing the steel increases its corrosion-resistance.
Multiple NM-B Cables through a 2 EMT Conduit (NEC 2002
12/2 NM-B cable is 1/2 wide. Note (9) says I must treat this as a 1/2 round cable. Using pi*r*r, I compute the cable has a cross section of 0.196 square inches. Dividing 1.342 by 0.196 says I can put 6.83 cables in this conduit. Note (7) tells me that since the decimal is above 0.8, I can round this up to 7.
Oral contraceptives and antibiotics. A cross-sectional
Oct 24, 2014A cross-sectional study about patients' knowledge in general practice. Kathryn Hoffmann 1 Email author, George 2, a cross-sectional study that lasted from November 2010 until July 2011 The final 12.0 % related that the package insert was the
A cross-sectional investigation of regional patterns of
In cross-sectional analyses adjusted for key demographic and lifestyle confounders, diets across all regions characterized by dairy, fried snacks, and sweets appeared to be positively asssociated with abdominal adiposity.
An ideal fluid flows at 12 m/s in a horizontal pipe. If
Since the same volume of fluid flows through the sections at any given time, the volume of flow per second in the normal cross sectional area of radius r is pr^2*12 m^3.
Study of knowledge, perception and attitude of adolescent
Jan 25, 2008Study of knowledge, perception and attitude of adolescent s towards STIs/HIV, safer and education (A cross sectional survey of urban adolescent school s in South Delhi, India)
Emotional Eating, Health Behaviours, and Obesity in
In the present study, we examined these associations in a cross-sectional sample of 5426 (54% s) 9⁻11-year-old children from 12 countries and five continents. EE, food consumption, and TV-viewing were measured using self-administered questionnaires, and physical activity and nocturnal sleep duration were measured with accelerometers.
Urine culture doubtful in BMC Family Practice
Oct 20, 2010In this cross-sectional study symptoms were registered and voided urine specimens were collected for urinary cultures from 651 elderly individuals. Logistic regressions were performed to evaluate the statistical correlation between bacteriuria and presence of a symptom at group level.
and Reaction University of Michigan
Sec. 12.1 Diffusion and Reaction in Spherical Catalyst Pellets 815 2. The paths are tortuous. 3. The pores are of varying cross-sectional areas. An equation that relates D e to either the bulk or the Knudsen diffusivity is (12-1) where ˜ c Constriction factor The constriction
The Cross-sectional and Longitudinal Diabetes Care
The Cross-sectional and Longitudinal Associations of Diabetic Retinopathy With Cognitive Function and Brain MRI Findings The Action to Control Cardiovascular Risk in Diabetes (ACCORD) Trial The 12 sublevels were subsequently grouped with future cognitive decline in persons with type 2 diabetes and confirms the finding from the
Chapter 12 HYDROLOGICAL MEASUREMENTS
cross-section of the river in a unit of time), the velocity of flow, turbulence and depth will Figure 12.2 Cross-section of a stream divided into vertical sections for measurement of discharge The computation for discharge is based on the assumption that the average velocity
Defining Factors in Sealing Applications All Seals Inc.
Defining Factors in Sealing Applications. While small in cost, seals are often one of the most important components in a product. Seal Cross-sectional Area Equation 7. O-Ring Cross-sectional Area = (O-Ring . Cross-section/2)2 x 3.1415. Equation 8. Quad-Ring Brand‚ Cross-sectional Area = (Quad-Ring Brand Cross-section)2 x .8215
DSS and DHS longitudinal and cross-sectional viewpoints
DHSs are repeated at approximately 5-year intervals in many countries around the world, with each round drawing a fresh cross-sectional sample. In Ethiopia, the Butajira Rural Health Programme (BRHP) is a DSS that has been in place since 1987 and has accumulated over
CHAPTER 7 CROSS-SECTIONAL DATA ANALYSIS AND
cross sections (or, alternatively, a cross section of time series). For example, we might have monthly sales by each of 37 sales territories for the last 60 months. We have explained and applied regression tools in the context of time-ordered data. The same tools are directly applicable to cross-sectional data. In one respect the cross-sectional
HOLLOW STRUCTURAL SECTIONS
The transformation of steel strip into hollow structural sections (HSS) is the result of a series of operations including formi ng, C Torsional shear constant of cross-section (in. 3) D Outside diameter of round HSS (in.) 1/2* 183.50 0.500 45.0 61.0 53.9 8160 510 12.3 601 5280 440 9.89 495 10100 739 9.12
The role of health extension workers in improving
A cross-sectional survey was undertaken in August-November 2009 to assess utilization to maternal health services by women in rural villages in Ethiopia. Setting The study was conducted in
Volume Flow Area to Flow Velocity Calculator
Cross-Sectional Area. Enter the cross-sectional area perpendicular to the direction of flow of the substance through a pipe, duct or channel at the point of measurement. Flow Velocity Calculation. This is the speed of flow that will be produced by the specified volumetric flow rate and cross-sectional area