Results 61 to 70 of about 25,352 (302)

Cylindrical aggregates of 5,5',6,6'-tetrachlorobenzimida-carbocyanine amphiphilic derivatives: Structure-related optical properties and exciton dynamics

open access: yesInternational Journal of Photoenergy, 2006
The static and time-resolved optical response of 5,5′,6,6′-tetrachlorobenzimidacarbocyanine chromophore-based tubular double-wall molecular aggregates is studied.
A. Pugzlys   +4 more
doaj   +1 more source

Hunter-Gatherers’ Self-Governance: Untying the Traditional Authority of Chiefs from the Western Toba Civil Association

open access: yesInternational Indigenous Policy Journal, 2015
The Integral Law for Aborigines (426/84) was the first legal instrument in Argentina systematically addressing indigenous peoples’ rights. It was modeled on the Paraguayan Law for Indigenous Communities (901/81).
Marcela Mendoza
doaj   +1 more source

Conserved binding mode but diverse interfaces of MreC‐PBP2 interactions

open access: yesFEBS Letters, EarlyView.
The crystal structure of abMreC reveals a conserved two β‐barrel architecture and provides structural insights into its role within the bacterial elongasome. The abMreC–abPBP2 complex model identifies the molecular basis of MreC‐mediated PBP2 recognition, contributing to the regulation of peptidoglycan synthesis.
Hyunseok Jang   +4 more
wiley   +1 more source

Study of negative-parity bands in a collective pair approach

open access: yesPhysics Letters B, 1986
Abstract Shell model calculations with two opposite-parity levels are performed, using as building blocks collective pairs of both positive (S and D) and negative parity (P and F pairs), and a schematic quadrupole pus octupole interaction. Evidence is found for the development of a negative-parity band, strongly connected to the ground band by E1 ...
CATARA F   +3 more
openaire   +2 more sources

Lifetime measurements of excited K$^\pi$ = 0$^+$ bands in $^{178}$Hf

open access: yes, 2002
Lifetimes of three excited Kπ=0+ bands have been measured in the same deformed nucleus (178Hf). Evidence is presented for the first observation of two excited Kπ=0+ bands connected via collective E2 transitions.
Aprahamian, A.   +9 more
core   +1 more source

Single-particle and collective excitations in 63Ni [PDF]

open access: yes, 2013
A study of excited states in 63Ni up to an excitation energy of 28 MeV and a probable spin of 57/2 was carried out with the 26Mg(48Ca,2α3nγ)63Ni reaction at beam energies between 275 and 320 MeV.
McCutchan, EA   +46 more
core   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

open access: yesMolecular Oncology, EarlyView.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau   +36 more
wiley   +1 more source

Low-frequency band noise generated by industrial recirculating aquaculture systems exhibits a greater impact on Micropterus salmoidess

open access: yesEcotoxicology and Environmental Safety
The effect of underwater noise environment generated by equipment in industrial recirculating aquaculture systems (RAS) on fish is evident. However, different equipment generate noise in various frequency ranges.
Shengyu Hang   +7 more
doaj   +1 more source

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang   +12 more
wiley   +1 more source

Home - About - Disclaimer - Privacy