Results 71 to 80 of about 66,640 (250)

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

T Cell Exhaustion in Cancer Immunotherapy: Heterogeneity, Mechanisms, and Therapeutic Opportunities

open access: yesAdvanced Science, EarlyView.
T cell exhaustion limits immunotherapy efficacy. This article delineates its progression from stem‐like to terminally exhausted states, governed by persistent antigen, transcription factors, epigenetics, and metabolism. It maps the exhaustion landscape in the TME and proposes integrated reversal strategies, providing a translational roadmap to overcome
Yang Yu   +7 more
wiley   +1 more source

Recent Advances in Laser‐Induced Graphene‐Based Gas Sensors: From Sensing Mechanisms to Biomedical Applications

open access: yesAdvanced Science, EarlyView.
Laser‐induced graphene (LIG) provides a scalable, laser‐direct‐written route to porous graphene architecture with tunable chemistry and defect density. Through heterojunction engineering, catalytic functionalization, and intrinsic self‐heating, LIG achieves highly sensitive and selective detection of NOX, NH3, H2, and humidity, supporting next ...
Md Abu Sayeed Biswas   +6 more
wiley   +1 more source

Two Routes to Land: Genomic Underpinnings of Parallel Aerial Egg Deposition in Aquatic Old‐World Pila and New‐World Pomacea (Ampullariidae)

open access: yesAdvanced Science, EarlyView.
Comparative genomics of Gondwana‐diverged Pila and Pomacea reveals parallel evolution of aerial oviposition. Convergent chromosomal rearrangements reshape regulatory landscapes within topologically associating domains. Lineage‐specific gene family expansions and viral‐derived perivitelline proteins (PV1) underpin desiccation resistance.
Yufei Zhou   +10 more
wiley   +1 more source

Metabolic Imbalance Triggers Adaptive Remodeling to Accelerate Diploidization in Murine Haploid Embryonic Stem Cells

open access: yesAdvanced Science, EarlyView.
In this article, Shuai and colleagues demonstrate that metabolic remodeling drives self‐diploidization in murine haploid ESCs (haESCs). Mitochondrial dysfunction and imbalanced pyruvate metabolism underlie this process. Genome‐wide screening using haESCs identifies key mitochondrial quality‐control related genes, enabling a metabolism‐based medium that
Yi Fu   +11 more
wiley   +1 more source

Suporte ventilatório na capacidade funcional de pacientes com insuficiência cardíaca: estudo piloto Soporte ventilatorio en la capacidad funcional de pacientes con insuficiencia cardiaca: estudio piloto Effect of ventilatory support on functional capacity in patients with heart failure: a pilot study

open access: yesArquivos Brasileiros de Cardiologia, 2011
FUNDAMENTO: A insuficiência cardíaca é um importante problema de saúde pública, apresentando a dispneia e a fadiga como principais sintomas clínicos. A utilização do suporte ventilatório não invasivo vem atuando como coadjuvante da reabilitação cardíaca ...
Eugênia da Silva Lima   +8 more
doaj  

Large‐Scale Genomics Reveals Three‐Source Ancestry and Layered Adaptation to High Altitude in Tibetan Chickens

open access: yesAdvanced Science, EarlyView.
Whole‐genome analysis of 1,054 chickens reveals three ancestral sources (NWC, SYA, and SHF) with distinct temporal entry patterns into the Tibetan Plateau. Route‐specific selection scans, calibrated against a demographic null, suggest complementary functional enrichments—vascular homeostasis (NWC), calcium signaling and cardiac adaptation (SYA), and ...
Zongyi Zhao   +7 more
wiley   +1 more source

Effectiveness of non-invasive mechanical ventilation in patients with acute respiratory failure

open access: yesRevista Electrónica Dr. Zoilo E. Marinello Vidaurreta, 2018
Background: the predictive factors of success of non-invasive mechanical ventilation in patients with acute respiratory failure are important to define their progress.Objective: to determine the effectiveness of non-invasive mechanical ventilation ...
Gilberto Lázaro Betancourt-Reyes
doaj  

Hydrogen (H2) Recovery From Hydrogen Sulfide (H2S): Current Technologies, Challenges, and Future Outlook

open access: yesAdvanced Science, EarlyView.
ABSTRACT Hydrogen sulfide (H2S) can be transformed into hydrogen (H2) through several chemical and catalytic processes, offering a promising route for both waste treatment and clean H2 production. This colorless, flammable, and toxic gas is found abundantly in swamps, volcanoes, hot springs, sewages, other natural gas fields, and even in refineries and
Divyesh Cirikonda   +4 more
wiley   +1 more source

Noninvasive mechanical ventilation and pulmonary empyema

open access: yesRevista Electrónica Dr. Zoilo E. Marinello Vidaurreta, 2019
Thoracic empyema is defined by the presence of pus in the pleural space. It is a critical condition which has a worse prognosis in nosocomial infections. The most frequent cause is a history of pneumonia.
Gilberto Lázaro Betancourt-Reyes
doaj  

Home - About - Disclaimer - Privacy