Results 81 to 90 of about 9,790 (281)

Warm Inflation with the Standard Model

Physical Review Letters
We show for the first time that warm inflation is feasible with standard model (SM) gauge interactions alone. Our model consists of a minimal extension of the SM by a single scalar inflaton field with an axionlike coupling to gluons and a monomial potential. The effects of light fermions, which were previously argued to render warm
Kim V. Berghaus, Marco Drewes, Sebastian Zell   +2 more
openaire   +4 more sources

Uncovering renewable energy policy impact channels on land values, the local farm structure, and farmland heterogeneity

American Journal of Agricultural Economics, EarlyView.
Abstract Germany's Renewable Energy Sources Act (REA), enacted in 2000 and subsequently amended, subsidized national renewable energy production with fixed feed‐in tariffs for renewable energy sources (RE) from wind, solar, and biogas. Empirical studies suggest that the policy was creating windfall effects for landowners and attribute farmland use ...
Lars Isenhardt, Stefan Seifert, Saskia Wolff, Tobia Lakes, Marten Graubner, Axel Werwatz, Silke Hüttel   +6 more
wiley   +1 more source

Primordial Black Holes from Warm Inflation

, 2020
Primordial Black Holes (PBHs) serve as a unique probe to the physics of the early Universe phenomenon, cosmic inflation. In light of this, we study the formation of PBHs by the collapse of overdense perturbations generated during a model of warm ...
Richa Arya, Arya, Richa
core   +1 more source

Constraining chameleon field driven warm inflation with Planck 2018 data

European Physical Journal C: Particles and Fields, 2019
We investigate warm inflationary scenario in which the accelerated expansion of the early Universe is driven by chameleon-like scalar fields. Due to the non-minimal coupling between the scalar field and the matter sector, the energy-momentum tensor of ...
Haidar Sheikhahmadi, Abolhassan Mohammadi, Ali Aghamohammadi, Tiberiu Harko, Ramón Herrera, Christian Corda, Amare Abebe, Khaled Saaidi   +7 more
doaj   +1 more source

High‐elevation endemic plants predicted to lose habitat from changing climate in Washington State

American Journal of Botany, EarlyView.
Abstract Premise High‐elevation plants face unique challenges from potential climate change impacts that will likely require upslope migration into increasingly smaller suitable habitat. This situation is particularly acute for endemic species that by definition occupy small geographic ranges.
Nicholas L. Gjording, Erik W. Ertsgaard, David E. Giblin, Iris H. Dimpsey, Owen B. Bard   +4 more
wiley   +1 more source

The gravitino problem in supersymmetric warm inflation

, 2010
The warm inflation paradigm considers the continuous production of radiation during inflation due to dissipative effects. In its strong dissipation limit, warm inflation gives way to a radiation dominated Universe. High scale inflation then yields a high
Bueno Sanchez, Juan C., Kohri, Kazunori, Bastero Gil, Mar, Konstantinos Dimopoulos, Berera, Arjun, Juan C. Bueno Sánchez, Kazunori Kohri, Mar Bastero-gil, Arjun Berera, Dimopoulos, Konstantinos, Bastero-Gil, Mar   +10 more
core   +1 more source

Dynamics of polynomial Chaplygin gas warm inflation

European Physical Journal C: Particles and Fields, 2017
In the present work, we study the consequences of a recently proposed polynomial inflationary potential in the context of the generalized, modified, and generalized cosmic Chaplygin gas models. In addition, we consider dissipative effects by coupling the
Abdul Jawad, Shahid Chaudhary, Nelson Videla   +2 more
doaj   +1 more source

Warm multi-natural inflation

Journal of Cosmology and Astroparticle Physics
Abstract Multi-natural inflation is studied in the context of warm inflation. We study the warm multi-natural inflation scenario with both linear and cubic temperature-dependent dissipation coefficients. The model is motivated by axion-like inflation models with coupling to non-Abelian gauge fields through a dimension-five ...
Asuka Ito, Rudnei O. Ramos
openaire   +2 more sources

Assessing the Feasibility of Wearable Devices for Physiological Monitoring and Heat Risk Prediction in Outdoor Agricultural Workers

American Journal of Industrial Medicine, EarlyView.
ABSTRACT Background Outdoor agricultural workers experience significant heat exposure, yet few studies have evaluated whether wearable sensors can reliably measure continuous physiological responses in real field conditions. This pilot study examined the feasibility and predictive utility of core temperature, hydration, heart rate, and movement data ...
Sinan Sousan, Elizabeth Mizelle, Qiang Wu, Rui Wu, Guy Iverson, Ciprian Popoviciu, Dylan Hemedinger, Eliezer Loyola, Takari Hood, Monica Ramirez, Jo Anne Balanay   +10 more
wiley   +1 more source

A mouse model of mechanical stress injury to the basal ganglia using thermosensitive PNIPAM hydrogel for intracerebral hemorrhage research

Animal Models and Experimental Medicine, EarlyView.
In this study, we established a novel mouse model of intracerebral hemorrhage (ICH) by stereotactically injecting thermosensitive PNIPAM hydrogel into the internal capsule to impose localized mechanical stress on the corticospinal tract, which provides a straightforward and reproducible tool for preclinical studies on focal mechanical stress–induced ...
Mingxi Li, Yujie Chen, Rongsu Huang, Min Xia, Chao Mi, Yuan Tian, Peiwen Guo, Taotao Jin, Shilei Hao, Hua Feng, Yujie Chen, Zhi Chen   +11 more
wiley   +1 more source