Results 91 to 100 of about 142,936 (307)

Male‐biased sexual selection, but not sexual dichromatism, predicts speciation in birds

, 2021
Sexual selection is thought to shape phylogenetic diversity by affecting speciation or extinction rates. However, the net effect of sexual selection on diversification is hard to predict because many of the hypothesized effects on speciation or ...
Cally, Justin G., Stuart?Fox, Devi, Cally, Justin, Stuart-Fox, Devi, Holman, Luke, Medina, Iliana, Dale, James   +6 more
core   +1 more source

The Trichinella Super‐Pangenome Reveals the Evolution of Encapsulation and Predicted Host–Parasite Protein Interactions

Advanced Science, EarlyView.
ABSTRACT The muscle capsule of Trichinella is a critical structure that impedes immune attacks and drug penetration, yet the molecular mechanisms underlying its formation remain poorly understood. Using a high‐quality super‐pangenome comprising 12 Trichinella species, we compared extensive genomic variations between encapsulating and non‐encapsulating ...
Qingbo Lv, Yi Liu, Ning Xu, Xiao Zhang, Yaming Yang, Chengyao Li, Hanhai Mao, Mingyuan Liu, Xiaolei Liu   +8 more
wiley   +1 more source

Changes in phosphorus fractions caused by increased microbial activity in forest soil in a short-term incubation study

Chemical Speciation & Bioavailability, 2018
The effects of adding larch (Larix kaempferi) leaf litter and nitrogen (N) on microbial activity and phosphorus (P) fractions in forest soil were examined in a short-term (28-d) laboratory incubation study.
Takashi Kunito, Naomi Hiruta, Yasunori Miyagishi, Hirotaka Sumi, Hitoshi Moro   +4 more
doaj   +1 more source

Chemical speciation of environmentally significant metals with inorganic ligands Part 2: The Cu2+-OH-, Cl-, CO32-, SO42-, and PO43- systems

, 2007
Complex formation between CuII and the common environmental ligands Cl-, OH-, CO32-, SO42-, and PO43- can have a significant effect on CuII speciation in natural waters with low concentrations of organic matter.
Powell, K.J., Sjöberg, S., Hans Wanner, Brown, P.L., Byrne, Robert H., Powell, Kipton J., Gajda, T., Paul L. Brown, Gajda, Tamás, Sjöberg, Staffan, Tamas Gajda, Hefter, Glenn, Robert H. Byrne, Byrne, R.H., Kipton J. Powell, Sjöberg, Staffan,, Hefter, G., Wanner, H., Staffan Sjoberg, Wanner, Hans, Glenn Hefter, Brown, Paul L.   +21 more
core   +1 more source

Divergent Roles of mGlu2 and mGlu3 Receptors in Amyloid‐β Production and Cognitive Dysfunctions in Alzheimer's Disease

Advanced Science, EarlyView.
This study explores the opposing effects of the mGluR2 and mGluR3 receptors on amyloid precursor protein processing. mGluR2 promotes amyloidogenic cleavage, while mGluR3 favors non‐amyloidogenic pathways. Using a brain‐penetrant nanobody as a mGluR2 positive allosteric modulator, the study uncovers how its chronic activation aggravates amyloid‐β burden
Pierre‐André Lafon, Mireille Elodie Tsitokana, Ugo Guy Alenda, Yen‐Ling Lian, Clémentine Eva Philibert, Mathieu Oosterlaken, Marta Cimadevila, Gaëlle Dudon, Jessica Monnic, Salomé Roux, Julie Bessié, Séverine Diem, Franck Vandermoere, Laurent Prézeau, Patrick Chames, Julie Kniazeff, Sylvie Claeysen, Anaïs Menny, Jean‐Philippe Pin, Véronique Perrier, Jianfeng Liu, Philippe Rondard   +21 more
wiley   +1 more source

Speciation by selection: A framework for understanding ecology's role in speciation

Current Zoology, 2013
Speciation research during the last several decades has confirmed that natural selection frequently drives the generation of new species. But how does this process generally unfold in nature?
R. Brian LANGERHANS, Rüdiger RIESCH
doaj  

Computer-augmented modeling studies of Pb(II) and Cd(II) complexes with maleic acid in ethylene glycol–water mixture

Chemical Speciation & Bioavailability, 2016
Chemical speciation of binary complexes of Pb(II) and Cd(II) ions with maleic acid have been studied pH metrically in the concentration range of 0–50% v/v ethylene glycol (EG)–water mixtures maintaining an ionic strength of 0.16 molL−1 at 303 K ...
Ch. Nageswara Rao, Bogi Srinu, V. Gowri Kumari, B. B. V. Sailaja   +3 more
doaj   +1 more source

A new species of whipworm from a south american hystricomorph rodent

Memorias do Instituto Oswaldo Cruz, 1990
A new species of whipworm, Trichuris robusti, is described from the cecum and large intestine of rodent, Ctnomys robusti, collected in northern Chile. The nematode shows close affinityto T. bradleyi and T. chilensis, both having been described from Chile
B. B. Babero, R. B. Murua
doaj   +1 more source

DYNAMIC SPECIATION PROCESSES IN THE MEDITERRANEAN ORCHID GENUS OPHRYS L. (ORCHIDACEAE)

, 2011
GENERAL INTRODUCTION CHAPTER 1: MULTI-LOCUS NUCLEAR GENE PHYLOGENY OF THE SEXUALLY DECEPTIVE ORCHID GENUS OPHRYS L. (ORCHIDACEAE) CHAPTER 2: ANALYSIS OF VARIATION AND SPECIATION IN THE OPHRYS SPHEGODES SPECIES COMPLEX CHAPTER 3: FLORAL ISOLATION IS ...
Breitkopf, Hendrik
core  

Insights Into CO2 Loss, pH Effects, and Tafel Kinetics in Ni Single Atom‐Driven Bicarbonate Electroreduction

Advanced Science, EarlyView.
Selective CO formation in bicarbonate electrolysis is achieved by retaining reactive CO2 and tuning pH, while the competing hydrogen evolution reaction occurs at the interface. The rate‐determining step couples the chemical equilibrium of bicarbonate/CO2 with electrochemical charge transfer, offering insight into optimizing reaction conditions for ...
Lin Li, Yi‐Jie Kong, Ting Zhang, Xu Han, Kristine Aalestrup, Steen Uttrup Pedersen, Xin‐Ming Hu, Kim Daasbjerg   +7 more
wiley   +1 more source