Results 41 to 50 of about 102,093 (192)

Zero-energy edge states and their origin in particle-hole symmetric systems: symmetry and topology [PDF]

open access: yes, 2003
We propose a criterion to determine the existence of zero-energy edge states for a class of particle-hole symmetric systems. A loop is assigned for each system, and its topology and a symmetry play an essential role.
Fujita   +7 more
core   +2 more sources

Revitalizing endangered mycocultural heritage in Mesoamerica: The case of the Tlahuica‐Pjiekakjoo culture

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
The preservation and revitalization of mycocultural heritage, developed over centuries of human‐mushroom interaction, contributes to safeguarding both natural ecosystems and the promotion of sustainable rural development, one of the biggest global challenges currently faced by humankind.
Elisette Ramírez‐Carbajal   +8 more
wiley   +1 more source

MICOBIOTA AISLADA DE SERPIENTES EN CUARENTENA DEL CENTRO PARA INVESTIGACIONES Y RESPUESTAS EN OFIDIOLOGÍA DE LA UNIVERSIDAD DE PANAMÁ (CEREO)

open access: yesTecnociencia, 2020
Las serpientes al igual que los hongos, son organismos que a lo largo del tiempo han sido estigmatizados, no permitiendo con ello conocer y valorar su rol en los procesos biológicos en los cuales intervienen.
Javier Mancilla   +5 more
doaj   +1 more source

Entanglement Cost of Three-Level Antisymmetric States [PDF]

open access: yes, 2003
We show that the entanglement cost of the three-dimensional antisymmetric states is one ebit.Comment ...
Albererio S   +11 more
core   +3 more sources

Exploring Costa Rica's fungal trends: Insights from digitized specimens

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Fungi are essential to tropical ecosystems but remain largely absent from conservation agendas. By analyzing over 78,000 fungal records from Costa Rica—a globally recognized biodiversity hotspot—this study reveals key patterns in fungal diversity, distribution, and seasonality.
Melissa Mardones   +2 more
wiley   +1 more source

Photoemission and x-ray absorption studies of valence states in (Ni,Zn,Fe,Ti)$_{3}$O$_{4}$ thin films exhibiting photo-induced magnetization

open access: yes, 2007
By means of photoemission and x-ray absorption spectroscopy, we have studied the electronic structure of (Ni,Zn,Fe,Ti)$_{3}$O$_{4}$ thin films, which exhibits a cluster glass behavior with a spin-freezing temperature $T_f$ of $\sim 230$ K and photo ...
A. Fujimori   +15 more
core   +1 more source

Information extraction and quantum state distortions in continuous variable quantum teleportation [PDF]

open access: yes, 2001
We analyze the loss of fidelity in continuous variable teleportation due to non-maximal entanglement. It is shown that the quantum state distortions correspond to the measurement back-action of a field amplitude measurement.
Furusawa, Akira   +3 more
core   +2 more sources

Optic nerve sheath meningioma exhibits neural niche‐associated transcriptomic features and rare copy number variation‐linked evolution

open access: yesBrain Pathology, EarlyView.
Optic nerve sheath meningiomas are typically NF2‐intact with few copy number alterations and are generally clinically indolent. Rare aggressive recurrences are associated with progressive accumulation of copy number variations, including CDKN2A/B homozygous deletion, 1q gain, and 14q loss.
Daisuke Sato   +15 more
wiley   +1 more source

Using customs data to understand overlooked trade in non‐CITES birds between Africa and Asia

open access: yesConservation Biology, EarlyView.
Abstract The international trade in live birds poses risks to animals, people, and biodiversity. To effectively mitigate these risks, decision‐makers require information on the volume, dynamics, and direction of trade. Despite Africa once being the largest exporter of birds by region, very little data exist on recent trade in live birds not listed on ...
Alisa Davies   +4 more
wiley   +1 more source

Determinación de las razas fisiológicas de fusarium Oxysporum f. sp. dianthi del clavel en Colombia Determination of the physiological races of Fusarium Oxysporum f.sp. dianthi on carnation in Colombia

open access: yesAgronomía Colombiana, 1991
Uno de los problemas más limitantes del cultivo del clavel en Colombia es el marchitamiento vascular ocasionado por el hongo Fusarium oxysporum f. sp. disnthi, El trabajo fue realizado con el objetivo de determinar la variabilidad morfológica, cultural ...
Arbelaez Germán, Calderón Olga Lucia
doaj  

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