Results 61 to 70 of about 60,072 (209)

Implications of CHOOZ results for the decoupling of solar and atmospheric neutrino oscillations

open access: yes, 1998
We have considered the results of solar and atmospheric neutrino oscillation experiments in the scheme of mixing of three neutrinos with a mass hierarchy.
Bilenky   +13 more
core   +1 more source

Summer flooding of alfalfa: Disease induced by excessive flooding of fields during high temperatures is major factor in annual depletion of stands

open access: yesCalifornia Agriculture, 1959
Alfalfa stands in the Imperial and Palo Verde valleys of southern California often need to be replanted each year.
D Erwin, W Lehman, B Kennedy, G Worker
doaj  

Leaf Size and Shape Interact to Control Flammability: An Experiment With Artificial Leaves Cut From the Large‐Leaved Species Sapranthus palanga

open access: yesBiotropica, Volume 57, Issue 5, September 2025.
We evaluated the flammability of leaves based on their shape and size. Rectangular and triangular shapes showed high flammability that did not vary with size, while circular shapes had minimal flammability, but it varied with size. These findings indicate that leaf shape and size impact flammability.
Esthela Rodríguez‐García   +1 more
wiley   +1 more source

Evidenze empiriche dalla volatilità dei prezzi elettrici durante la crisi energetica californiana. Cattura del regolatore nel caso Enron? (Empirical evidence on energy prices volatility during the Californian energy crisis. Regulator's capture in the Enron case?)

open access: yesMoneta e Credito, 2019
Questo lavoro analizza i trade data dei tre hubs principali dei mercati elettrici occidentali USA – SP-15, Palo Verde e Mid-C –, proponendo la costruzione e l’organizzazione di un nuovo dataset completo delle serie temporali giornaliere dei prezzi ...
Francesco Busato, Andrea Gatto
doaj   +1 more source

Habitat Protection Alone Is Insufficient: Costa Rican Parrots Thrive in Altered Landscapes but Remain Vulnerable to Poaching

open access: yesDiversity and Distributions, Volume 31, Issue 9, September 2025.
ABSTRACT Aim Human population growth and resource overexploitation have induced major changes in global biodiversity. Costa Rica, with 26% of its land area protected, is often cited as a model of environmental conservation. However, conservation efforts have largely focused on habitat preservation, while overharvesting remains an unquantified factor in
P. Romero‐Vidal   +5 more
wiley   +1 more source

A new species of Peckia (Diptera: Sarcophagidae) from Costa Rica : with a note on P. pexata (Wulp) [PDF]

open access: yes, 2000
A new species of Peckia Robineau-Desvoidy is described from the coastal dry forest of Guanacaste Province, Costa Rica, viz., Pechia glyphis sp.n., and a key to the ten species of Peckia known from the area is provided.
Andersson, Magnus, Pape, Thomas
core  

Reactor Neutrinos [PDF]

open access: yes, 2005
We review the status and the results of reactor neutrino experiments, that toe the cutting edge of neutrino research. Short baseline experiments have provided the measurement of the reactor neutrino spectrum, and are still searching for important ...
Achkar   +56 more
core   +5 more sources

Tiny Patch, Big Value: A Small Dry Forest Patch Supports Wildlife Conservation in Guanacaste, Costa Rica

open access: yesEcology and Evolution, Volume 15, Issue 8, August 2025.
This study highlights the biodiversity value of the Murren Reserve, a small tropical dry forest patch in Guanacaste, Costa Rica. Using camera traps and opportunistic observations, researchers documented 32 wildlife species, including federally endangered species like the ocelot (Leopardus pardalis) and puma (Puma concolor), as well as 73 plant species.
Trevor L. Proctor   +5 more
wiley   +1 more source

Extrinsic CPT Violation in Neutrino Oscillations in Matter

open access: yes, 2003
We investigate matter-induced (or extrinsic) CPT violation effects in neutrino oscillations in matter. Especially, we present approximate analytical formulas for the CPT-violating probability differences for three flavor neutrino oscillations in matter ...
A. Aguilar   +109 more
core   +4 more sources

Macroinvertebrados bentónicos del humedal de Palo Verde, Costa Rica</a> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16"><i>Revista de Biología Tropical</i>, 2009 </span><br><span class="r_content">El humedal de Palo Verde es uno de los más importantes de Centro America para aves acuáticas. Durante el período 2002 y 2005, se llevaron a cabo actividades de manejo para controlar la invasión de Typha domingensis.</span><br><span class="r_sub"><i>F.A Trama<span id="ma_10" style="display:none">, F.L Rizo Patrón  V., M Springer</span>   <small><a href="#" style="color:#808080;" onClick="return toggle_div(this, 'ma_10')">+2 more</a></small></i></span><br><small><a href="https://doaj.org/article/2d9bc775c3ff410a9185bcad4cc6f783" target="_blank" rel="nofollow" title="doaj.org/article/2d9bc775c3ff410a9185bcad4cc6f783">doaj</a> </small>   <br></div><div class="r"><div style="margin-bottom:2px;overflow:hidden"><div style="display: inline-block; float: left; font-size: small; padding-right: 16px; margin-top: -1px; padding-bottom: 1px;"><a href="/q-7._clean_energy/" class="suggestion"onclick="show_loader();"><b>7. clean energy</b></a><br/><a href="/q-high_energy_physics_-_experiment_hep-ex/" class="suggestion"onclick="show_loader();"><b>high energy physics - experiment hep-ex</b></a><br/><a href="/q-fos%3A_physical_sciences/" class="suggestion"onclick="show_loader();"><b>fos: physical sciences</b></a><br/></div><div style="display: inline-block; float: left; font-size: small; padding-right: 16px; margin-top: -1px; padding-bottom: 1px;"><a href="/q-high_energy_physics_-_experiment/" class="suggestion"onclick="show_loader();"><b>high energy physics - experiment</b></a><br/><a href="/q-13._climate_action/" class="suggestion"onclick="show_loader();"><b>13. climate action</b></a><br/><a href="/q-530/" class="suggestion"onclick="show_loader();"><b>530</b></a><br/></div><div style="display: inline-block; float: left; font-size: small; padding-right: 16px; margin-top: -1px; padding-bottom: 1px;"></div></div></div><div class="pagenav"><a href="/q-palo_verde/p-6/" rel="nofollow"><b>previous</b></a>   <a href="/q-palo_verde/p-5/" rel="nofollow">5</a>  <a href="/q-palo_verde/p-6/" rel="nofollow">6</a>  <b>7</b>  <a href="/q-palo_verde/p-8/" rel="nofollow">8</a>  <a href="/q-palo_verde/p-9/" rel="nofollow">9</a>   <a href="/q-palo_verde/p-8/" id="next" rel="nofollow"><b>next</b></a> </div><br></div> </div> <script>document.getElementById('loadingGif').style.display='none';</script><div style="width: 100%; height: 40px; bottom: 0px; background-color: #f5f5f5;"><div style="padding-left: 15px; padding-top: 10px"> <a href="/" rel="nofollow">Home</a> - <a href="/page-about/" rel="nofollow">About</a> - <a href="/page-disclaimer/" rel="nofollow">Disclaimer</a> - <a href="/page-privacy/" rel="nofollow">Privacy</a> </div></div> <link rel="stylesheet" href="//ajax.googleapis.com/ajax/libs/jqueryui/1.11.4/themes/smoothness/jquery-ui.min.css"/> </body> </html>