نتایج جستجو برای: environmental barriers

تعداد نتایج: 446974  

Journal: :علوم و تکنولوژی محیط زیست 0

the paper presents the results of an investigation on the acoustic performance of vertical profile parallel barriers with quadratic residue diffuser tops and faces. a 2d boundary element method (bem) was used to predict the barrier insertion loss. the results of rigid and with absorptive coverage were also calculated for comparisons. using qrd on the top surface and faces of all vertical profil...

2013
Abdulrahman O. Musaiger Mariam Al-Mannai Reema Tayyem Osama Al-Lalla Essa Y. A. Ali Faiza Kalam Mofida M. Benhamed Sabri Saghir Ismail Halahleh Zahra Djoudi Manel Chirane

OBJECTIVE To highlight the perceived personal, social, and environmental barriers to healthy eating and physical activity among Arab adolescents. METHOD A multistage stratified sampling method was used to select 4698 students aged 15-18 years (2240 males and 2458 females) from public schools. Seven Arab counties were included in the study, namely, Algeria, Jordan, Kuwait, Libya, Palestine, Sy...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی عمران 1391

in this study, scour of mashkid bridge pier located in mashkid river of saravan county has been studied and to measure the scour rate, the numerical model hec-ras 4.0 has been used. upon selection of mashkid river as the case study and whereas the studied zone is important with respect to the climatic conditions and showery monsoon raining and flowing the great and destructive floodwaters, ther...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی عمران 1391

today, scouring is one of the important topics in the river and coastal engineering so that the most destruction in the bridges is occurred due to this phenomenon. whereas the bridges are assumed as the most important connecting structures in the communications roads in the country and their importance is doubled while floodwater, thus exact design and maintenance thereof is very crucial. f...

2016
Robert D. Gifford Angel K. S. Chen

Theenvironmentalattitude-behaviorgaphasbeenextensivelystudied,butnoresearchhas examined a wide range of barriers to climate change mitigation. Inspired by Gifford’s (2011) seven categories of psychological barriers to climate change mitigation and adaptation, we examined the role of 36barriers onclimate-positive food-choice intentions.Of the 36, 29were significantly related to weaker intentions...

2009
Andrew J. Hoffman Rebecca Henn

The green building movement has overcome formidable, technical, and economic hurdles in recent years, yet adoption of green building practices within the design and construction field remains low. Major corporations now offer products and services at a scale that is bringing costs down to competitive levels, but environmental sustainability in building design and delivery remains at the early s...

Journal: :Current opinion in biotechnology 2016
Mohamed Taha Mohamed Foda Esmaeil Shahsavari Arturo Aburto-Medina Eric Adetutu Andrew Ball

The main source of energy supply worldwide is generated from fossil fuels, which undoubtedly are finite and non-environmental friendly resources. Bioethanol generated from edible resources also has economic and environmental concerns. Despite the immense attention to find an alternative (inedible) source of energy in the last two decades, the total commercial production of 1st generation biofue...

2011
Kristina A. Theis Sylvia E. Furner

Community participation may be especially important for older adults, who are often at risk for unwanted declines in participation. We estimated the prevalence of community participation restriction (PR) due to perceived environmental barriers among older adults (≥50 years) and compared the impact among those with selected chronic conditions. Individuals with low-prevalence conditions reported ...

Journal: :Jornal de pediatria 2008
Vivian Iwamoto Sarah H P dos Santos Thelma L Skare Paulo F Spelling

OBJECTIVE To assess psychological stress in primary caregivers of juvenile idiopathic arthritis (JIA) pediatric patients. METHODS Uncontrolled cross-sectional analytical study of 40 caregivers of JIA patients. Caregivers were evaluated using the Caregiver Burden Scale, which analyzes five domains of stress on a scale of 1 to 4: general strain, isolation, disappointment, emotional involvement ...

2015
Livia Bizikova Vincenzo Torretta

Environmental mainstreaming (EM) is a policy instrument to integrate environmental risks and opportunities into planning and implementation. A body of knowledge exists on identifying barriers for EM at the national level. This paper identifies contributions of regional institutions for improving capacities for EM at the national level, using the Caribbean region as a case study. The methodology...

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