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3篇 您的检索式:作者名="Carlos Perla"
    题名 作者 年代 出处 被引量
1Noninvasive Cerebrovascular Assessment of Takayasu Arteritis显示文摘Carlos Cantú Carlos Pineda Fernando Barinagarrementeria Perla Salgado Alba Gurza Paola de Pablo Rolando Espinosa Manuel Martínez-Lavín 2000Stroke: Journal of the American Heart Association2000,,9:1
2Variability in mentum deformities of Tanytarsus larvae(Diptera,Chironomidae)in a metal rich basin in Northern Mexico显示文摘Mentum deformities in chironomids have been commonly used as indicators of metal contamination in freshwater ecosystems.Incidence of these deformities suggests sublethal effects and can provide early signals of environmental deterioration.While anthropogenic metal pollution is known to lead to an increase in deformities in chironomids,natural background deformity incidence information is key to their effective use as biomonitoring tools.Here we explore the incidence of deformities from 5000 Tanytarsus(Diptera,Chironomidae)menta in relation to water physicochemical,and sediment metal(Al,As,Cu,Fe,Mn,Pb,Zn)concentration data from numerous sites in the naturally metal-rich Sonora River(NW Mexico)obtained over a two-year period.Higher metal concentrations were found in the upper basin.Higher salinity,total suspended solids and conductivity were found in the lower basin.Only As and Cu were occasionally found above published threshold effect levels(TEL).The proportion of deformities(%D)was low(2.1%)and a generalized linear model only explained 25.36%of%D variability among samples;this model included several physicochemical parameters.The only metal significantly related to deformities was Cu.Despite significant spatial and temporal variability in all metal concentrations and other physicochemical parameters in the basin,we were unable to explain a strong relationship between metal concentration and deformity incidence.Our results,based on consistent%D quantification from 5000 samples from a single taxon,suggest that natural variation in metal concentrations,even when statistically significant,is not associated with notable variations in the incidence of deformities.Orestes Carlos Bello-Gonzalez Perla Alonso-EguíaLis Cesar Arturo Ilizaliturri Hernandez Norman Mercado-Silva 2022Water Biology and Security2022,1,2:0
3Undergraduate Design and Analysis of a LEED Certified Building显示文摘In this technical and educational research endeavor, a diverse group of civil engineering students took on the role of creating the means and methods of producing a successful building design. Architectural, structural, and environmental designs were primarily performed. This was followed by detailed cost analysis with the intent of providing a realistic cost comparison by pricing the intended building, using traditional material and typical building methods, versus pricing the building using recycled material and new present-day technology. Some green features needed to achieve a LEED (Leadership in Energy and Environmental Design) gold certification were considered and applied. It is shown that producing a green building is more costly in present circumstances;however, the additional cost due to greenification pays itself off throughout the years giving in return saving features. Even though the design of a green building comes with detailed planning and costly material, it does generate benefits for the building owner, the society, and most importantly the environment.Lance Narcida Madison O’Dell Mynor Pacheco Carlos Perla Victor Ramirez Damian Sanchez Jillian Shoemaker Louisa Songco Tadeh Zirakian David Boyajian 2022Journal of Civil Engineering and Architecture2022,16,5:0
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