Results 31 to 40 of about 34,350 (219)

Synthesis of New Spiro-Cyclopropanes Prepared by Non-Stabilized Diazoalkane Exhibiting an Extremely High Insecticidal Activity

open access: yesMolecules, 2022
The synthesis of new insecticidal gem-dimethyspiro-cyclopropanes derived from pyrrolidine-2,3-dione have been described, and their biological effect against different insect species has been evaluated.
Naoufel Ben Hamadi, Ahlem Guesmi
doaj   +1 more source

Observational Constraints on Interstellar Grain Alignment

open access: yes, 2007
We present new multicolor photo-polarimetry of stars behind the Southern Coalsack. Analyzed together with multiband polarization data from the literature, probing the Chamaeleon I, Musca, rho Opiuchus, R CrA and Taurus clouds, we show that the wavelength
Arnal E. M.   +27 more
core   +1 more source

On the Trade-off Between Spectrum Efficiency with Dedicated Access and Short End-to-End Transmission Delays with Random Access in DVB-RCS2 [PDF]

open access: yes, 2013
This paper analyses the performance of TCP over random and dedicated access methods in the context of DVB-RCS2. Random access methods introduce a lower connection delay compared to dedicated methods.
Bui, Huyen Chi   +4 more
core   +2 more sources

Local Interstellar Medium Kinematics towards the Southern Coalsack and Chamaeleon-Musca dark clouds

open access: yes, 2003
The results of a spectroscopic programme aiming to investigate the kinematics of the local interstellar medium components towards the Southern Coalsack and Chamaeleon-Musca dark clouds are presented. The analysis is based upon high-resolution (R ~ 60,000)
G. A. P. Franco   +3 more
core   +3 more sources

Adolescents' trajectories of mental health in the MYRIAD trial

open access: yesJCPP Advances, EarlyView.
Abstract Background This study explored adolescent's mental health trajectories over the course of a school‐based mindfulness‐based intervention trial (MYRIAD). It examined whether intervention condition (mindfulness vs. teaching‐as‐usual), individual‐level and contextual‐level factors were associated with different trajectories.
Carolina Guzman Holst   +8 more
wiley   +1 more source

A revised estimate of the distance to the clouds in the Chamaeleon complex using the Tycho-Gaia Astrometric Solution

open access: yes, 2017
The determination of the distance to dark star-forming clouds is a key parameter to derive the properties of the cloud itself, and of its stellar content. This parameter is still loosely constrained even in nearby star-forming regions.
Manara, Carlo F.   +2 more
core   +1 more source

Giosuè Musca: «La nascita del Parlamento nell'Inghilterra medievale». Bari, Dedalo, 1995, 188 páginas (Recensión)

open access: yesRevista de las Cortes Generales, 1998
Recensión de la obra: MUSCA, Giosuè: La nascita del Parlamento nell’Inghilterra medievale. Bari. Dedalo, 1995, 188 págs.
Gemma Tarodo Rodríguez
doaj   +1 more source

Anthropogenic nitrogen addition interrupts seasonal connectivity and structures of plant–pollinator networks

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Ecological communities are stressed by rapid and complex anthropogenic changes, threatening the persistence of biotic interactions and ecosystem functioning. Plant–pollinator communities, for instance, undergo structural transformations as a result of land‐use change ...
Erliang Gao   +8 more
wiley   +1 more source

THE AESTHETICS OF URBAN METABOLISM: Landscape, Design and the Politics of In/Visibility

open access: yesInternational Journal of Urban and Regional Research, EarlyView.
Abstract In this article, we chart the evolving aesthetic contours of urban metabolism across London, focusing on the River Lea and Thamesmead to the north and south of the River Thames, respectively. We begin in the nineteenth century, when these two sites formed critical nodes within a new sewerage system that relegated the city’s circulatory flows ...
Ben Platt, Zuhri James
wiley   +1 more source

The Spermatophore in Glossina morsitans morsitans: Insights into Male Contributions to Reproduction. [PDF]

open access: yes, 2016
Male Seminal Fluid Proteins (SFPs) transferred during copulation modulate female reproductive physiology and behavior, impacting sperm storage/use, ovulation, oviposition, and remating receptivity.
Abd-Alla, Adly MM   +8 more
core   +2 more sources

Home - About - Disclaimer - Privacy