Results 111 to 120 of about 3,726,993 (338)

New Techniques and Data for Understanding the Global Soil Respiration Flux

open access: yesEarth's Future, 2018
Soil respiration (Rs; the soil surface‐to‐atmosphere CO2 flux) has been measured in the field for decades, but only recently have we begun to assemble and leverage these small‐scale but extensive data. Recently, Zhao et al. (2017, https://doi.org/10.1002/
B. Bond-Lamberty
semanticscholar   +1 more source

Factors related to mortality of senior citizens due to pneumonia associated to mechanical ventilation

open access: yesRevista Electrónica Dr. Zoilo E. Marinello Vidaurreta, 2018
Background: at the intensive care unit of the “Dr. Agostinho Neto” Hospital a way to assess the risk of mortality of senior citizens due to pneumonia associated to mechanical ventilation is not available.Objective: to identify the factors related to ...
Reinaldo Elias-Sierra   +3 more
doaj  

Comparative Study between Surgical Repair of Atrial Septal Defect via Median Sternotomy, Right Submammary Thoracotomy, and Right Vertical Infra-Axillary Thoracotomy

open access: yesBrazilian Journal of Cardiovascular Surgery
Objective: To compare the results of surgical repair via median sternotomy, right submammary thoracotomy, and right vertical infra-axillary thoracotomy for atrial septal defect (ASD).
Zeng-rong Luo   +4 more
doaj   +1 more source

Signal processing methods for non-invasive respiration monitoring [PDF]

open access: yes, 2002
This thesis investigates the feasibility of using a set of non-invasive biomedical signals to monitor respiration. The signals of interest being the electrocardiogram (EGG), photoplethysmography (PPG) and impedance plethysmography (IP) signals.
Laura, Mason
core   +1 more source

Biointegrated Battery‐Based Electroceuticals

open access: yesAdvanced Materials, EarlyView.
Biointegrated batteries go beyond passive power to serve as active therapeutic platforms for delivering programmable electrical cues and bioactive agents. This review examines their mechanisms and applications and provides a framework to guide battery‐based therapeutic design and clinical translation.
Yan Zhou   +6 more
wiley   +1 more source

Extensive prokaryotic maintenance respiration in the sea influenced by osmoregulation

open access: yes, 2023
Microbial respiration is the major process consuming oxygen in the biosphere. The relative energy demand from growth of biomass or maintenance activities determines the regulation of respiration with impact on how the development of hypoxia and CO2 ...
Wikner, Johan,   +3 more
core   +1 more source

1‐D Collocated Dual‐Gradient Sensory Fibers for Comprehensive Sensing and Decoding of Complex Human Motion and Physiology

open access: yesAdvanced Materials, EarlyView.
Coupled materials design enables a monolithic fiber that integrates complementary sensing regimes into a single wearable strand. By preserving informative signal features across subtle physiological deformation, large body motion, and mixed mechanical inputs, the dual‐gradient architecture generates synchronized, less redundant outputs that improve ...
Yunheum Lee   +13 more
wiley   +1 more source

Effect of an education program for healthcare professionals focused on the detection and management of reverse triggering: Secondary analysis of a quasi-experimental study

open access: yesColombian Journal of Anesthesiology
Introduction: Reverse triggering (RT) is a frequent type of patient-ventilator asynchrony (PVA). Despite the potential complications associated with this type of asynchrony, there is a scarcity of literature regarding the effects of training programs ...
Iván Ramírez Venegas   +1 more
doaj   +1 more source

Separating soil respiration components with stable isotopes: natural abundance and labelling approaches

open access: yesiForest - Biogeosciences and Forestry, 2010
Due to the potential of forest ecosystems contributing to CO2 increase as well as to climate change mitigation, forest-atmosphere CO2 exchange has been intensively studied over last decades.
Braig E, Tupek B
doaj   +1 more source

From Fiber Bundles to Architected Membranes: Triply Periodic Minimal Surface Architectures for Biohybrid Artificial Lungs

open access: yesAdvanced Materials, EarlyView.
Additively manufactured triply periodic minimal surface (TPMS) membranes offer an architecture‐driven alternative to hollow fiber bundles in artificial lungs. Multiphysics simulations and endothelialized prototypes show that the 3D‐printable membrane architecture improves gas exchange, blood flow distribution, and hemocompatibility, enabling ...
Michael Pflaum   +14 more
wiley   +1 more source

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