Results 91 to 100 of about 28,654 (312)

Gold(I)‐Mediated Reactivity of Allenes With Mesoionic Nucleophiles: A Computational Exploration

European Journal of Organic Chemistry, EarlyView.
The regioselective gold(I)‐mediated reactivity of allenes with mesoionic nucleophiles has been evaluated through computational analysis of the mechanisms involved. Instead of typical (3 + 2) pathways, sydnones and münchnones favour the formal (3 + 3) cyclizations affording substituted dihydropyridines.
Eduardo Garcia‐Padilla, Feliu Maseras
wiley   +1 more source

Bat Cave Vulnerability to Anthropogenic Factors: Status and Priorities for Conservation Within the Mount Elgon Region, Uganda

Life
Uganda is home to a rich diversity of bats, which carry high ecological and socioeconomic value through the ecosystem services that they provide. However, critical bat habitats, including caves, are facing increasing anthropogenic pressures, and the ...
Aggrey Siya, Benard Matovu, Lillian Nalukenge, Micheal Mutebi, Betty Nalikka, Kevin Castle, Tanya Dewey, Kalani M. Williams, Natalie R. Wickenkamp, Emma K. Harris, Innocent B. Rwego, Eric Sande, Charles Masembe, Rebekah C. Kading, Robert M. Kityo   +14 more
doaj   +1 more source

Macroscopic, Histological and Ultrastructural Features of the Tongue of the Anatolian Wild Boar (Sus scrofa libycus)

Microscopy Research and Technique, EarlyView.
Integrated macroscopic, histological, and ultrastructural analyses revealed five distinct lingual papillae types (filiform, fungiform, conical, foliate, and vallate) in the Anatolian wild boar (Sus scrofa libycus). Mechanical papillae showed marked structural specialization, while gustatory papillae exhibited region‐specific distribution of taste buds.
Fatma Işbilir, Banu Kandil, Muhammed Zahid Atli, İhsan Işbilir, Barış Can Güzel   +4 more
wiley   +1 more source

Global subterranean estuaries modify groundwater nutrient loading to the ocean

Stephanie J. Wilson ... et al.-- 12 pages, 4 figures, 1 tableTerrestrial groundwater travels through subterranean estuaries before reaching the sea. Groundwater-derived nutrients drive coastal water quality, primary production, and eutrophication.
Wilson, Stephanie J., Santos, Isaac R., Ibánhez, J. Severino P.   +2 more
core   +1 more source

Scientists' warning on the conservation of subterranean ecosystems. [PDF]

, 2019
In light of recent alarming trends in human population growth, climate change, and other environmental modifications, a Warning to humanity manifesto was published in BioScience in 2017.
Teeling, Emma, Galassi, Diana M P, Martínez, Alejandro, Humphreys, William F, Halse, Stuart, Reboleira, Ana Sofia P S, Isaia, Marco, Malard, Florian, Cardoso, Pedro, Fišer, Cene, Ferreira, Rodrigo L, Halse, S., Martinez, A., Mammola, Stefano, Griebler, Christian, Niemiller, M.L., Teeling, Emma C, Humphreys, William, Humphreys, W.F., Reboleira, A.S.P.S., Moldovan, O.T., Wynne, J.J., Galassi, D.M.P., Teeling, E.C., Deharveng, Louis, Zagmajster, M., Moldovan, Oana, Zagmajster, Maja, Mammola, S., Galassi, Diana, Culver, David, Moldovan, Oana T, Griebler, C., Ferreira, Rodrigo, Isaia, M., Niemiller, Matthew, Niemiller, Matthew L, Malard, F., Pavlek, Martina, Culver, D.C., Ferreira, R.L., Cardoso, P., Wynne, J Judson, Culver, David C, Souza-Silva, Marconi, Souza-Silva, M., Fišer, C., Culver, David C., Deharveng, L., Pavlek, M.   +49 more
core   +1 more source

A New Species of the Genus Cybaeus (Araneae: Cybaeidae) from a Cave in Northeastern Central Honshu, Japan

Species Diversity
A new species of Cybaeus L. Koch, 1868, C. eremospelyngus sp. nov., is described from Osawa-shonyudo Cave, Niigata Prefecture, northeastern central Honshu, Japan.
Eitaro Matsushita, Yoh Ihara, Takafumi Nakano   +2 more
doaj   +1 more source

RNA-seq analysis of blood from cave- and surface-dwelling Astyanax morphs reveal diverse transcriptomic responses to normoxic rearing

Frontiers in Physiology
Adaptive responses to hypoxia are likely accompanied by highly diverse changes in gene expression. Here, we examined the transcriptomic regulation in blood samples derived from independently-derived captive cave-dwelling fish.
Tyler E. Boggs, Lydia R. Bucher, Joshua B. Gross   +2 more
doaj   +1 more source

Marine Isotope Stage 4 glaciation in northern England, UK: Evidence from Victoria Cave, North Yorkshire

Journal of Quaternary Science, EarlyView.
ABSTRACT Victoria Cave, north Yorkshire, England, contains a long sequence of Pleistocene clastic sediments and calcite flowstones. Earlier work, using U–Th dating, established that the flowstone units formed in interglacial stages corresponding to Marine Isotope Stages (MIS) 13, 11, 9, 7 and 5.
Tom C. Lord, Peter Wilson, Joyce Lundberg, Adrian P. Palmer, Matt W. Telfer, Rhiannon E. Stevens, Phillip J. Murphy, Mark Lewis   +7 more
wiley   +1 more source

Invertebrate fauna (Coleoptera, Collembola, Diplopoda, Isopoda) collected in the karst areas of the Aninei – Locvei Mountains

Travaux de l'Institut de Speologie Emile Racovitza, 2011
The authors identified 132 species of invertebrates (14 Oniscidea, 25 Diplopoda, 31 Collembola and 62 Coleoptera) recently sampled (2001–2006) from the soil and subterranean (MSS and caves) environments from the Banat Mountains.
EUGEN NITZU, IONUŢ POPA, ANDREI GIURGINCA   +2 more
doaj  

A comparison of monitoring methods for inferring demographics of a pond‐breeding amphibian population over 14 years

The Journal of Wildlife Management, EarlyView.
We used 4 sampling methods to estimate or index the abundance and sex ratio of spotted salamanders (Ambystoma maculatum) over 14 years. The present study highlights the importance of considering individual heterogeneity in capture probability when estimating abundance of pond‐breeding amphibians from capture data with imperfect detection. Abstract Long‐
Patrick D. Moldowan, Doug P. Armstrong, Glenn J. Tattersall, Njal Rollinson   +3 more
wiley   +1 more source