Results 61 to 70 of about 454,868 (300)

Mechanical end joint system for connecting structural column elements [PDF]

, 1990
A mechanical end joint system is presented that eliminates the possibility of free movements between the joint halves during loading or vibration. Both node joint body (NJB) and column end joint body (CEJB) have cylindrical engaging ends.
Bush, Harold G., Mikulas, Martin M., Jr., Wallsom, Richard E.   +2 more
core   +1 more source

Polygynandry and sexual size dimorphism in the sea spider Ammothea hilgendorfi (Pycnogonida: Ammotheidae), a marine arthropod with brood-carrying males. [PDF]

, 2008
Species that exhibit uniparental postzygotic investment by males are potentially good systems for investigating the interplay of sexual selection, parental care and mating systems.
Andersson, Arak, Arango, Arnaud, Arnold, Arnold, Avise, Bain, Bain, Bamber, Berglund, Berglund, Berglund, Berglund, Berglund, Birkhead, Birkhead, Brookfield, Butchart, Clutton-Brock, Clutton-Brock, Constantz, Dakin, Darwin, Emlen, Fahrenbach, Goldschmidt, Guo, Hamilton, Hauswaldt, Hedgpeth, Hedrick, Jager, Jamieson, Jarvis, Jones, Jones, King, King, Lovely, Manica, Maxmen, Milligan, Miyazaki, Møller, Nakamura, Nakamura, Oring, Page, Porter, Preziosi, Raymond, Rico, Ridley, Schneider, Shine, Shuster, Slatkin, Sokal, Tallamy, Tallamy, Tatarenkov, Tomaschko, Townsend, Trivers, Unger, Walker, Walker, Watson, Westneat, Wilhelm, Williams, Williams, Yasui, Zahavi   +74 more
core   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

FEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto, Yukio Matsuba, Mika Takahashi, Takaomi C. Saido   +3 more
wiley   +1 more source

Distribuição temporal, sincronia reprodutiva e padrões de acasalamento do sapo de reprodução explosiva Dermatonotus muelleri (Anura: Microhylidae)

Revista de Biologia Neotropical, 2022
The knowledge about natural history of a species is fundamental for the proposition of theories in population, community, and behavioral ecology. Dermatonotus muelleri (Boettger, 1885) is one of the several Neotropical anuran species that still lacks ...
Fausto Nomura, Fernando Rogério de Carvalho, Denise Cerqueira Rossa-Feres   +2 more
doaj  

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Etude des caractéristiques botaniques, agronomiques et de la biologie florale du melon africain (Cucumis melo var. L. agrestis Naudin, Cucurbitaceae) [PDF]

Biotechnologie, Agronomie, Société et Environnement, 2006
Study of botanic, agronomic characters and fl oral biology of African melon (Cucumis melo L. var. agrestis Naudin, Cucurbitaceae). African melon, Cucumis melo var.
Baudoin JP., Gnamien GY., Zoro Bi AI., Kouonon LC., Djè Y.   +4 more
doaj  

Rubber-coated bellows improves vibration damping in vacuum lines [PDF]

, 1966
Compact-vibration damping systems, consisting of rubber-coated metal bellows with a sliding O-ring connector, are used in vacuum lines. The device presents a metallic surface to the vacuum system and combines flexibility with the necessary stiffness.
Hegland, D. E., Smith, R. J.
core   +1 more source

Aggressive prostate cancer is associated with pericyte dysfunction

Molecular Oncology, EarlyView.
Tumor‐produced TGF‐β drives pericyte dysfunction in prostate cancer. This dysfunction is characterized by downregulation of some canonical pericyte markers (i.e., DES, CSPG4, and ACTA2) while maintaining the expression of others (i.e., PDGFRB, NOTCH3, and RGS5).
Anabel Martinez‐Romero, Ane Martinez‐Larrinaga, Joaquim Grego‐Bessa, Saioa Garcia‐Longarte, Hielke van Splunder, Ianire Astobiza, Amaia Ercilla, Laura Bozal‐Basterra, Isabel Mendizabal, Pilar Villacampa, Arkaitz Carracedo, Mariona Graupera   +11 more
wiley   +1 more source

US automated rendezvous and capture capabilities review. Remote umbilical system abstract [PDF]

This document will describe the technology developed at Kennedy Space Center (KSC) to demonstrate automatic tracking, docking, and mating of umbilical systems. Specifically the use of a real time six degree of freedom (6DOF) target tracking vision system,
Delcastillo, Eduardo Lopez
core   +1 more source