Results 111 to 120 of about 343,510 (289)

Method and apparatus for bio-regenerative life support system [PDF]

, 1991
A life support system is disclosed for human habitation (cabin) which has a bioregenerative capability through the use of a plant habitat (greenhouse) whereby oxygen-rich air from the greenhouse is processed and used in the cabin and carbon dioxide-rich ...
Cullingford, Hatice S.
core   +1 more source

Electrothermally Controlled 3D‐Printed Shape Memory Polymers for Near‐Ambient Temperature Soft Robotic Applications

Advanced Intelligent Systems, EarlyView.
In this article, we develop bespoke resins for stereolithography 3D‐printing of soft‐robotic grippers that are controlled remotely by electrothermal stimulus near ambient temperatures. Turning on the electrical control, each finger can be actuated separately.
Kalyan Ghosh, Thomas Sweeney, Ji Zhang, Shaashwat Saraff, Sohini Kar‐Narayan   +4 more
wiley   +1 more source

Food inflation pass‐through from agricultural imports in a small open economy

American Journal of Agricultural Economics, EarlyView.
Abstract This paper develops a new framework for quantifying cost pass‐through in a small open economy by estimating firm‐level markup responses to agricultural import price shocks. We show theoretically that markup adjustments depend on firms' reliance on imported inputs and demand curvature, generating heterogeneous inflationary effects across firm ...
Minseong Kang, Seungki Lee
wiley   +1 more source

How does the Kids SIPsmartER program impact the sugar‐sweetened beverage intake of students: An investigation beyond total treatment effect in randomized controlled trial

American Journal of Agricultural Economics, EarlyView.
Abstract This study develops and empirically estimates a structural framework to decompose the causal pathways of multilevel behavioral interventions targeting adolescent health behaviors. We apply this framework to the Kids SIPsmartER (KSS) program, a 6‐month, school‐based intervention evaluated through a clustered randomized controlled trial in rural
Naveen Abedin, Wen You, Annie Reid, Kathleen Porter, Brittany Kirkpatrick, Jamie Zoellner   +5 more
wiley   +1 more source

Calidad del ambiente acuático de ríos altoandinos evaluada mediante indicadores ambientales: un caso del río Cunas, Perú

Ingeniare: Revista Chilena de Ingeniería
Se evaluó la calidad del ambiente acuático del río Cunas mediante indicadores ambientales, en dos periodos climáticos contrastantes. Se identificaron las presiones antropogénicas sobre el ambiente acuático y se determinó la carga de DBO5 aportada por ...
María Custodio, Erika Chávez
doaj  

Lost in aggregation? On the importance of local food price data for food poverty estimates

American Journal of Agricultural Economics, EarlyView.
Abstract This paper explores within‐country variations in food price dynamics and food poverty estimates by employing local market price data and national consumer price index (CPI) data. Our results show that national CPI data may be useful for approximating national trends but they fail to detect and identify spatial variations in local trends, which
Stephan Dietrich, Valerio Giuffrida, Bruno Martorano, Georg Schmerzeck, Marco Tiberti   +4 more
wiley   +1 more source

Generación de una base de eventos hidrometeorológicos en la cuenca del río Yanuncay

Ingeniería Hidráulica y Ambiental, 2020
En el trabajo se ofrece una visión general del procedimiento para obtener la base necesaria de eventos para el apoyo a la toma de decisiones ante la ocurrencia de inundaciones, con la Plataforma Modular Integrada (PMI). También se definen y caracterizan
Maray Garrido Monagas, Carlos Javier Fernández de Córdova Webst, Alcides J. León Méndez   +2 more
doaj  

Infertility Risk and Employment History Among US Women: Findings From National Health and Nutrition Examination Survey 2013–2014

American Journal of Industrial Medicine, EarlyView.
ABSTRACT Introduction It is well established that exposure to chemical, radiological, and biological hazards in the workplace are infertility risk factors. Although workplace‐specific infertility risks have been documented, the associations between employment history and infertility risk remain largely unexplored.
Cerine Benomar, Anne T. M. Konkle, Karen P. Phillips   +2 more
wiley   +1 more source

Analysis of Nanobubble-oxygenated Water for Horticultural Applications

HortTechnology
The theoretical properties of nanobubbles (NBs), such as a negative surface charge and large interfacial surface area, allow for highly efficient gas transfer and stagnation time in water and may reduce the surface tension of NB-treated water sources ...
Eric J. DeBoer, Michael D. Richardson, Thanos Gentimis, John H. McCalla   +3 more
doaj   +1 more source

Rainwater Capture and Purification System for Rural Tanzania [PDF]

, 2018
The project was a rainwater capture and purification system for the Buturi community in rural northwestern Tanzania. Recent research indicates the northwestern communities in Tanzania will suffer greatly under the effects of climate change.
Gozali, Audrey, Miyashiro, Nathan, Sasaki, Matthew   +2 more
core   +1 more source