Results 41 to 50 of about 1,293 (188)

Urban Pollution Promotes Biotic Simplification of the Zooplankton Community in Ponds in Northeastern Brazil

Freshwater Biology, Volume 70, Issue 6, June 2025.
ABSTRACT Pollution significantly impacts aquatic biodiversity by limiting the species pool. However, considerable uncertainty remains regarding which community attributes should be used to demonstrate the effects of this anthropogenic disturbance. We propose that zooplankton taxonomic biodiversity could serve as a reliable pollution indicator in lentic
Gustavo Adolfo Villalba Duré, Jaielle Rodrigues Nascimento, Escarlett de Arruda Ramos, Alan Cleber Santos da Silva, Allison Gonçalves Silva, Sylvia Maria Moreira Susini Ribeiro, Nadson Ressyé Simões   +6 more
wiley   +1 more source

Patterns of Gene Family Evolution and Selection Across Daphnia

Ecology and Evolution, Volume 15, Issue 5, May 2025.
This study examines gene family dynamics within Daphnia species, using comparative genomics to explore adaptive expansion in gene families, particularly those related to stress response. Findings reveal general trends in gene turnover and selection, although most changes are species‐specific, highlighting complex evolutionary patterns.
Connor S. Murray, Alan O. Bergland
wiley   +1 more source

Selective Synthesis of Tetrahydroisoquinoline and Piperidine Scaffolds by Oxidative Ring Opening/Ring Closing Protocols of Substituted Indenes and Cyclopentenes

ChemistryOpen, Volume 14, Issue 5, May 2025.
Synthesis under stereocontrol of some novel tetrahydroisoquinoline and functionalized piperidine derivatives from substituted indenes or cyclopentenes is described. The key steps of the transformation are an oxidative ring cleavage across the olefin bond, followed by cyclization under double reductive amination with primary chiral amines through ring ...
Anas Semghouli, László Drahos, Jianlin Han, Loránd Kiss, Melinda Nonn   +4 more
wiley   +1 more source

Cambio de bandas o forros de frenos [PDF]

, 1992
Esta cartilla presenta las características, el funcionamiento, las fallas más comunes y los procedimientos de cambio de los forros o bandas de freno.This primer presents the characteristics, the operation, the most common faults and the procedures for ...
Agudelo, Aicardo
core  

How Can Unique Alkaline Soda Waters Be Managed and Restored? Lake Neusiedl as the Largest Threatened European Example

Ecohydrology, Volume 18, Issue 2, March 2025.
ABSTRACT Inland alkaline soda waters (ASW), such as Lake Neusiedl (LN), represent some of the most stable alkaline natural environments and unique ecosystems on Earth. Their European hotspot is located in Central Europe, where LN stands as the largest threatened representative, giving it practical importance.
Emil Boros, Lajos Vörös
wiley   +1 more source

Falsos y forros del saco [PDF]

, 1990
Octava unidad de la serie “Confecciones” en la que se describen las partes del falso y forro delantero del saco, así cómo los pasos del proceso para su preparación.Falsos y forros del saco -- Proceso operacional para preparar falsos y forros del sacona25

core  

Synaptic Targets and Cellular Sources of CB1 Cannabinoid Receptor and Vesicular Glutamate Transporter‐3 Expressing Nerve Terminals in Relation to GABAergic Neurons in the Human Cerebral Cortex

European Journal of Neuroscience, Volume 61, Issue 1, January 2025.
In the human cerebral cortex, GABAergic boutons originating from diverse presynaptic cell types, some expressing CB1 cannabinoid receptor, make synapses mainly with dendritic shafts and spines. One quarter of GABAergic CB1 immunopositive nerve terminals also expresses the type 3 vesicular glutamate transporter (VGLUT3).
Peter Somogyi, Sawa Horie, Istvan Lukacs, Emily Hunter, Barbara Sarkany, Tim James Viney, James Livermore, Puneet Plaha, Richard Stacey, Olaf Ansorge, Salah El Mestikawy, Qianru Zhao   +11 more
wiley   +1 more source

Nitrogen and carbon in forro-alloy

BUNSEKI KAGAKU, 1958
第1報につづいて同じ装置を使用し,酸素ガスあるいは混合助燃剤を用いるなど,燃焼条件を変えることによって,燃焼法による金属中の窒素の定量法を検討した.試料としては,ケルダール法において残留物処理の必要なフェロアロイを用いた.低圧酸素ガス中で酸化鉛を助燃剤として燃焼させる方法により,フェロシリコン中の窒素,炭素の定量を行い,また鋼やチタンのように燃焼しやすい試料は,第1報に報告したように酸化鉛だけを用いる方法で窒素の定量ができることを確認した.またフェロクロムは燃焼しがたい試料であるが,助燃剤として鉛丹と無水硼酸を併用し,かつ試料を100メッシュ通過の細粒とすることにより,窒素,炭素の定量をすることができた.
openaire   +2 more sources

Trade and socioeconomic importance of an invasive giant snail in the endemic‐rich island of São Tomé, Central Africa

Conservation Biology, Volume 38, Issue 5, October 2024.
Abstract Managing invasive species is crucial to mitigate their negative impacts on ecosystems, yet conflicts may arise when their social benefits are disregarded. Human pressure on the endemic‐rich forests of São Tomé has been high since the island was discovered by the Portuguese in the 15th century, and numerous species have been introduced.
Martina Panisi, Ana R. Pereira, Bruzinay C. Neto, Paulo J. de Sousa, Gabriel Oquiongo, Jorge M. Palmeirim, Ricardo F. de Lima, Ana Nuno   +7 more
wiley   +1 more source

Astrocytes facilitate gabazine‐evoked electrophysiological hyperactivity and distinct biochemical responses in mature neuronal cultures

Journal of Neurochemistry, Volume 168, Issue 9, Page 3076-3094, September 2024.
This study investigated the effects of the GABAAR selective competitive antagonist gabazine on neural cell cultures. The cultures contained various ratios of neurons and astrocytes, examining the role of astrocytes in neuronal electrophysiology and biochemistry.
Annika Ahtiainen, Barbara Genocchi, Narayan Puthanmadam Subramaniyam, Jarno M. A. Tanskanen, Tomi Rantamäki, Jari A. K. Hyttinen   +5 more
wiley   +1 more source