Results 11 to 20 of about 396,346 (245)

Variation in leaf functional trait and ecological strategies in two seedling species in disturbed forest fragments in Eastern Amazonia [PDF]

Acta Botânica Brasílica
The importance of understanding environmental changes has stimulated the study of plant functional traits, which reflect the species' ecological strategies and determine how they respond to environmental variations and climate change.
Jéssica da Silva Pinto, Tailane Silva Sousa, Vanessa Negrão-Rodrigues, Renan Domingues Pacheco, Thaisa Sala Michelan, Raisa Nicole C. Cardoso, Grazielle Sales Teodoro   +6 more
doaj   +1 more source

Forensic taphonomy of mass graves [PDF]

Medicinski Podmladak
The archaeological context in mass graves, especially secondary ones (moved from the primary location), is much more complex due to the high fragmentation of the body.
Vaduvesković Igor, Đurić Marija
doaj   +1 more source

Conceptual DFT study based on the characterization of the local electrophilicity and nucleophilicity for intramolecular Diels-Alder reaction of the trans isomers of 4-[(4E)-4,6-heptadien-1-yl]-2-cyclohepten-1-one [PDF]

Journal of the Serbian Chemical Society
One of the most powerful methods for the rapid synthesis and formation of complex polycyclic molecules with biological interest involves the use of Diels–Alder (DA) reaction especially its intramolecular variant.
Temer Imane, Mostefai Asmaa, Rahmouni Ali   +2 more
doaj   +1 more source

Prioritization of Potential Linkages among Protected Areas in East Azerbaijan [PDF]

جغرافیا و پایداری محیط, 2017
As a major threat to biodiversity, habitat fragmentation has increased the local extinction of species due to a function of inbreeding and demographic stochastic factors.
Arsalan Shabani , Nader Habibzadeh , Mir Mohsen Hosseini Ghomi   +2 more
doaj  

Selected Results in Heavy-Quark Fragmentation

Universe, 2022
I review a few selected topics concerning heavy-quark fragmentation, taking particular care about bottom- and charm-quark production in e+e− annihilation and the inclusion of non-perturbative corrections.
Gennaro Corcella
doaj   +1 more source

Habitat Integrity in Protected Areas Threatened by LULC Changes and Fragmentation: A Case Study in Tehran Province, Iran

Land, 2021
The integration and connection of habitats in protected areas (PAs) are essential for the survival of plant and animal species and attaining sustainable development. Investigating the integrity of PAs can be useful in developing connections among patches
Parvaneh Sobhani, Hassan Esmaeilzadeh, Shahindokht Barghjelveh, Seyed Mohammad Moein Sadeghi, Marina Viorela Marcu   +4 more
doaj   +1 more source

Open Spaces in the European Alps—GIS-Based Analysis and Implications for Spatial Planning from a Transnational Perspective

Land, 2022
This article presents an open space concept of areas that are kept permanently free from buildings, technical infrastructure, and soil sealing. In the European Alps, space is scarce because of the topography; conflicts often arise between competing land ...
Hubert Job, Constantin Meyer, Oriana Coronado, Simon Koblar, Peter Laner, Andrea Omizzolo, Guido Plassmann, Walter Riedler, Philipp Vesely, Arthur Schindelegger   +9 more
doaj   +1 more source

Chameleon fragmentation [PDF]

Journal of Cosmology and Astroparticle Physics, 2014
A scalar field dark energy candidate could couple to ordinary matter and photons, enabling its detection in laboratory experiments. Here we study the quantum properties of the chameleon field, one such dark energy candidate, in an "afterglow" experiment designed to produce, trap, and detect chameleon particles.
Brax, Philippe, Upadhye, Amol
openaire   +2 more sources

An innovative method to assess specific charge, drilling and blasting costs considering critical factors of rock mass properties, fragment size and blasthole parameters

Results in Engineering
The specific charge has been given as a function of the blastability index (BI) only in previous research, whereas fragment size is one of the attractive blasting results. The impacts of combination of the important factors such as fragment size, in-situ
Hassan Moomivand, Sina Nayebi, Hussammodin Moomivand, Hamid Masoumzad   +3 more
doaj   +1 more source

Fragmentation of the 4He2 dimer with the emission of three or four electrons by fast highly charged projectiles

Frontiers in Physics, 2023
We investigate the fragmentation of the helium dimer, 4He2, into He2+ + He+ and He2+ + He2+ ions in collisions with fast highly charged projectiles. We discuss the main physical mechanisms driving these processes.
B. Najjari, S. F. Zhang, X. Ma, A. B. Voitkiv   +3 more
doaj   +1 more source