نتایج جستجو برای: lawn

تعداد نتایج: 1445  

Journal: :Environmental management 2008
Weiqi Zhou Austin Troy Morgan Grove

This article investigates how remotely sensed lawn characteristics, such as parcel lawn area and parcel lawn greenness, combined with household characteristics, can be used to predict household lawn fertilization practices on private residential lands. This study involves two watersheds, Glyndon and Baisman's Run, in Baltimore County, Maryland, USA. Parcel lawn area and lawn greenness were deri...

Journal: :Biological reviews of the Cambridge Philosophical Society 2015
Gareth P Hempson Sally Archibald William J Bond Roger P Ellis Cornelia C Grant Fred J Kruger Laurence M Kruger Courtney Moxley Norman Owen-Smith Mike J S Peel Izak P J Smit Karen J Vickers

Grazing lawns are a distinct grassland community type, characterised by short-stature and with their persistence and spread promoted by grazing. In Africa, they reveal a long co-evolutionary history of grasses and large mammal grazers. The attractiveness to grazers of a low-biomass sward lies in the relatively high quality of forage, largely due to the low proportion of stem material in the swa...

2017
Peter Moono Su Chen Lim Thomas V. Riley

Clostridium difficile is a well-established hospital pathogen. Recently, it has been detected increasingly in patients without hospital contact. Given this rise in community associated infections with C. difficile, we hypothesized that the environment could play an important role in transmission of spores outside the hospital. Lawn samples (311) collected in public spaces in the metropolitan ar...

Journal: :South African Medical Journal 2016

Journal: :The Iowa Review 1992

2009
Michael Goatley

ment in the management of lawns and landscapes as spring. Sales of all lawn and garden products soar as many homeowners strive for the best looking lawn possible. However, your enthusiasm for returning the lawn to tip-top shape should be tempered enough so that you make sound agronomic and environmental management decisions. Smart choices now will result in a healthy, dense turf canopy that wil...

2004
Colin L. Mallows

Abstract: In the "tennis ball" problem we are given successive pairs of balls numbered (1,2), (3,4),... At each stage we throw one ball out of the window. After n stages some set of n balls is on the lawn. We find a generating function and a closed formula for the sequence 3,23,131,664,3166,14545,65187,287060,1247690,..., the n-th term of which gives the sum over all possible arrangements of th...

Journal: :Journal of safety research 2012
Jeffrey Leinert Russell Griffin Justin Blackburn Gerald McGwin

INTRODUCTION Yard maintenance equipment is potentially dangerous, and some of the more frequency used equipment (e.g., lawn mowers) has been extensively studied. However, the extent of lawn trimmers as a source of injury has not previously been explored. METHODS Data from the Consumer Product Safety Commission's National Electronic Injury Surveillance System were used to estimate the number o...

Journal: :American journal of diseases of children 1990
S V Sotiropoulos M A Jackson G F Tremblay V F Burry L C Olson

Lawn dart injuries account for an estimated 675 emergency department visits per year. Seventy-six patients are described herein. The victims ranged from 1 to 18 years of age and were predominantly male (male to female ratio is 3.1:1). The most common sites of injury were head (54%), eye (17%), and face (11%). Hospitalization was required for 54% (41/76) of these patients. Sequelae included unil...

Journal: :Journal of the American Mosquito Control Association 2004
Joon-Hak Lee John E Kokas

A field study was conducted to evaluate two CDC gravid trap attractants available for the West Nile virus surveillance program in New York State (NYS). According to potential attractiveness, a common lawn sod in NYS, Kentucky bluegrass (Poa pratensis) infusion and a rabbit chow infusion were compared for attractiveness to primary West Nile virus vectors, Culex mosquitoes. Attractiveness of each...

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