Results 91 to 100 of about 172,685 (231)

Pollinator efficiency, rather than bee decline, explains a shift to hummingbird pollination in tropical montane forests

open access: yesNew Phytologist, Volume 251, Issue 4, Page 2237-2247, August 2026.
Hummingbird pollination is a hallmark of American plant diversity and has long been thought to evolve in tropical mountains due to declining bee activity. Using sister species of Costus specialized on bees (C. kuntzei) and hummingbirds (C. wilsonii), we show that this shift is not driven by reduced bee visitation with elevation, but by greater ...
Pedro Juárez   +7 more
wiley   +1 more source

De los modelos de observación en la Teoría General del Costo [PDF]

open access: yes, 2020
To manage organizations and solve the particular problems that arise from reality, the technique mustprovide the tools, but it is also necessary to have the basic theoretical principles and postulates that providesupport to costing techniques.
Canale, Sandra, Podmoguilnye, Marcelo
core  

Incidence, mortality and associated costs of lung cancer in the Mexican Institute of Social Security

open access: yesSalud Pública de México, 2019
Objective. To describe temporal trends in lung cancer incidence, mortality and associated health care costs in the Mexican Institute of Social Security. Materials and methods.
Ramón Alberto Rascón-Pacheco   +3 more
doaj   +1 more source

On the relationship between Photosystem II thermotolerance and irreversible heat damage in leaves of Rhizophora mangle

open access: yesPlant Biology, Volume 28, Issue 5, Page 1596-1601, August 2026.
Temperature‐F0 fluorescence curves of Rhizophora mangle leaves demonstrate that Tcrit, the temperature at which F0 begins to rise, is unrelated to tissue necrosis; irreversible leaf damage starts to occur at significantly higher temperatures where fluorescence emission is maximal. Abstract Global temperatures are on the rise and may, together with more
K. Winter   +4 more
wiley   +1 more source

CONTROL ESTRATÉGICO DE COSTOS

open access: yesContaduría Universidad de Antioquia, 2016
El ambiente económico de nuestro país ha cambiado. La apertura económica ha creado unos escenarios de competencia, que aún no comprendemos. Si antes, la eficiencia era una variable conveniente, ahora es obligatoria. El futuro está diseñado para quienes logren desarrollar ventajas competitivas sostenibles. Más que la diferenciación, el costo bajo parece
openaire   +2 more sources

Moving in Cycles: Explaining the Failure of Militarization to Address Illegal Mining in Ghana

open access: yesPolitics &Policy, Volume 54, Issue 4, August 2026.
ABSTRACT Mining contributes to Ghana's economic growth but also imposes significant social costs—land dispossession and unemployment—which have fueled the rise of illegal mining (galamsey). Galamsey, which intensified during the commodity boom of the 2010s, provides livelihoods while simultaneously worsening environmental degradation and social ...
Sulemana Alhassan Saaka, Phil Faanu
wiley   +1 more source

Coûts et prise de décision en agriculture: Une proposition appliquée [PDF]

open access: yes
Agricultural enterprises face productive dynamics marked by climatic uncertainty,extended biological cycles, and weak correlations between costs, prices, and outputvolumes.
Paturlanne, Jorge Luis   +3 more
core   +2 more sources

OPTIMIZATION OF DISTRIBUTION LAND IN PRODUCTION COOPERATIVE AGRICULTURAL "July 26" MINAZ THROUGH COMPUTER SYSTEM ANALYSIS VARIOSEL CROPS AND OPERATING LEVERAGE RELATIONSHIP WITH THE OPERATIONAL RISK CUBAN ENTERPRISES

open access: yesAnuario Facultad de Ciencias Económicas y Empresariales, 2016
This study is part of the project territorial Optimization of the Organization and Control in Prioritized Phases of The Sugar Agroindustrial Process.
Víctor L. López-Lescay   +2 more
doaj  

Costos estratégicos [PDF]

open access: yes, 2013
Los costos estratégicos, son aquellos que se utilizarán en la gestión estratégica de una empresa, y que resultan luego de la vinculación del análisis de la cadena de valor, análisis de posicionamiento estratégico, del análisis de causales de costos, y de los costos del poder, como propuesta de este trabajo.
openaire   +2 more sources

Do Criminalization Policies Impact Local Homelessness?

open access: yesPolicy Studies Journal, Volume 54, Issue 3, August 2026.
ABSTRACT Local criminalization policies draw on the logic of deterrence to levy costs on individuals who engage in behaviors that are closely associated with various public concerns, such as those criminalizing behaviors associated with homelessness, thereby potentially reducing community‐level costs.
Hannah Lebovits, Andrew Sullivan
wiley   +1 more source

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