Results 11 to 20 of about 2,747 (155)

Mechanochemical Synthesis of Lead-Free Halide Layered Double Perovskites: A Green and Scalable Approach. [PDF]

ChemSusChem
Herein we report a facile, green, and scalable synthetic alternative for the obtention of layered double perovskites (LDPs) via mechanosynthesis. This approach allows for the synthesis of phase‐pure LDPs in batches of up to 5 g within minutes. To our knowledge, this represents the largest scale and fastest synthesis of these materials reported to date.
Escobedo-Perez TI, Osorio-Sotelo R, Solis-Ibarra D.   +2 more
europepmc   +2 more sources

A vulvar fibroadenoma: A rare presentation of ectopic breast tissue. [PDF]

J Dermatol
The Journal of Dermatology, Volume 52, Issue 4, Page e264-e265, April 2025.
Alanis Ronquillo R, Martínez Velo IK, Salcedo Elguea EA, Torres Barragán G, Rodríguez Chaparro CI.   +4 more
europepmc   +2 more sources

Ethical conflicts associated with COVID-19 pandemic, triage and frailty-unexpected positive disease progression in a 90-year-old patient: A case report. [PDF]

Clin Case Rep, 2023
Chest radiograph of a 90‐year‐old patient with bipulmonary infiltrates typical of COVID‐19, already covering 70% of the lung parenchyma. The unexpectedly positive disease course in this 90‐year‐old patient raises ethical conflicts related to the COVID‐19 pandemic, standard triage practice at the time, and the frailty score used for this purpose.
Wehrfritz A, Schmidt J, Bremer F, Lang AK, Welzer J, Castellanos I.   +5 more
europepmc   +2 more sources

Morphological and Histological Variations of the Reproductive Organs During the Annual Cycle in a Neotropical Bat: Peters' Ghost-Faced Bat Mormoops megalophylla (Chiroptera: Mormoopidae). [PDF]

J Morphol
Mormoops megalophylla exhibits a seasonal monoestrous reproductive pattern. Spermatogenesis and folliculogenesis occurs from October to December, mating takes place in November–December, gestation lasts from December to May, and lactation extends from June to September.
Samano-Barbosa GA, Rojas-Martínez I, Porto-Ramírez SL, Salgado-Mejia F, Rodríguez-Tobón A, Salame-Méndez A, Arenas-Ríos E, Guevara-Chumacero LM, López-Wilchis R.   +8 more
europepmc   +2 more sources

Planar Tetracoordinate Oxygen Atoms. [PDF]

Angew Chem Int Ed Engl
This study investigates 515 candidate structures featuring a planar tetracoordinate oxygen (ptO) atom, adhering to the 18 valence electron rule and formulated as OXnYmq. Among these, 35 global minima were identified, primarily stabilized by Group 13 elements with charge states spanning −1 to +1.
Castillo-Toraya G, Ortíz-Chi F, Barroso J, Orozco-Ic M, Leyva-Parra L, Merino G.   +5 more
europepmc   +3 more sources

Reconciling fossils with phylogenies reveals the origin and macroevolutionary processes explaining the global cycad biodiversity

New Phytologist, Volume 240, Issue 4, Page 1616-1635, November 2023., 2023
Summary The determinants of biodiversity patterns can be understood using macroevolutionary analyses. The integration of fossils into phylogenies offers a deeper understanding of processes underlying biodiversity patterns in deep time. Cycadales are considered a relict of a once more diverse and globally distributed group but are restricted to low ...
Mario Coiro, Rémi Allio, Nathan Mazet, Leyla J. Seyfullah, Fabien L. Condamine   +4 more
wiley   +1 more source

Reuse remix recycle: repurposing archaeological digital data [PDF]

, 2018
Preservation of digital data is predicated on the expectation of its reuse, yet that expectation has never been examined within archaeology. While we have extensive digital archives equipped to share data, evidence of reuse seems paradoxically limited ...
Huggett, Jeremy
core   +1 more source

Spatial phylogenetics

Journal of Biogeography, Volume 50, Issue 8, Page 1454-1463, August 2023., 2023
Abstract The metric called phylogenetic diversity (PD) has been employed over the last 30 years to add an evolutionary dimension to the exploration of biodiversity. However, the application of PD was until recently limited by both technology and methodology.
Brent D. Mishler
wiley   +1 more source

Obstetric Hemorrhage, its role in maternal morbidity and mortality and the importance of its diagnosis, prevention and timely management

Mexican Journal of Medical Research ICSA, 2020
Background: In recent years, different international and national campaigns have been implemented to combat obstetric haemorrhage. Maternal mortality (MM) is one of the main concerns of public health and represents a good indicator to measure the quality
Ixchel Suyapa Reyes Espinoza
doaj   +1 more source

Legislative Transparency in the European Parliament: Disclosing Legislators' Meetings with Interest Groups

JCMS: Journal of Common Market Studies, Volume 61, Issue 2, Page 379-396, March 2023., 2023
Abstract Research on transparency in the EU and at the European Parliament, in particular, has extensively examined the adoption and implementation of transparency initiatives as well as the conditions under which interest groups have access to and influence on EU policy‐making. However, the question of whether Members of the European Parliament (MEPs)
Nuria Font, Ixchel Pérez‐Durán
wiley   +1 more source